News - Ģý Where the passion of science is nurtured and empowered Tue, 30 Jun 2026 08:45:56 +0000 vi hourly 1 /wp-content/uploads/2022/07/cropped-Alumi-event-02-32x32.png News - Ģý 32 32 HCMUS STRENGTHENS EDUCATION AND RESEARCH COLLABORATION WITH LEADING UNIVERSITIES IN JAPAN /hcmus-strengthens-education-and-research-collaboration-with-leading-universities-in-japan/ /hcmus-strengthens-education-and-research-collaboration-with-leading-universities-in-japan/#respond Thu, 25 Jun 2026 07:17:08 +0000 /?p=24808
HCMUS working visit to Osaka Metropolitan University (OMU) on 18 June 2026.

With the aim of expanding opportunities for learning, research, and academic exchange for lecturers, students, and postgraduate researchers, from 18 to 20 June 2026, a delegation from VNUHCM–University of Science (HCMUS) undertook a working visit to two academic partners in Japan: Osaka Metropolitan University (OMU) and Toyota Technological Institute (TTI).

HCMUS working visit to Toyota Technological Institute (TTI) on 19 June 2026.

The delegation comprised representatives from academic affairs, postgraduate education, science and technology, external relations offices, and academic faculties of HCMUS.

Expanding international learning opportunities with Osaka Metropolitan University

On 18 June, the delegation held a working session with leaders and representatives from functional units of Osaka Metropolitan University, one of Japan’s major public universities.

Representatives from VNUHCM–University of Science and Osaka Metropolitan University discuss student exchange programmes, short-term courses, and academic collaboration.

During the session, both sides introduced development strategies, strengths in education and research, and discussed opportunities for collaboration in student exchange, short-term academic programmes, and academic engagement between lecturers and students from both universities.

Representatives from OMU shared information on scholarship opportunities, international exchange programmes, and courses designed for international students. In the coming period, both sides will continue coordination to strengthen academic connections and provide students of HCMUS with further opportunities for international learning and academic experience.

The delegation from VNUHCM–University of Science visits facilities and academic spaces at Osaka Metropolitan University.

In addition to the working programme, the delegation visited facilities, classrooms, and research spaces at OMU to gain insight into the educational model and academic environment of the university.

Continuing more than 15 years of collaboration with Toyota Technological Institute

On 19 June, the delegation continued the working programme with Toyota Technological Institute, a partner that has collaborated with HCMUS in training, education, and research initiatives since 2010.

Representatives from VNUHCM–University of Science and Toyota Technological Institute discuss collaboration outcomes during 2010–2026, double degree programmes, and student exchange activities.

During the session, both sides reviewed achievements from more than 15 years of collaboration and discussed future development directions, particularly double degree programmes and short-term exchange opportunities for students.

As part of the visit, the delegation toured several advanced laboratories at TTI, including the Polymer Chemistry Laboratory, Organic Catalytic Chemistry Laboratory, Mechanical Materials Engineering Laboratory, Laser Science Laboratory, and cleanroom facilities supporting high-technology research.

Academic exchanges at the laboratories enabled lecturers and researchers from both universities to connect, share research directions, and explore potential collaboration in key areas of science and technology.

The delegation from VNUHCM–University of Science visits facilities and research spaces at Toyota Technological Institute.

The delegation also met Nguyễn Thị Như Quỳnh, a doctoral researcher from HCMUS currently participating in a research exchange programme at TTI. The meeting provided HCMUS with insights into academic and research progress in an international environment, while demonstrating the practical impact of collaborative training programmes between both universities in developing high-quality human resources.

Expanding international collaboration networks

The working visit to Japan reaffirmed HCMUS commitment to expanding international partnerships and enhancing the quality of education and scientific research in line with international standards.

Through strengthened collaboration with prestigious Japanese universities, HCMUS aims to create further opportunities for lecturers, students, and postgraduate researchers to participate in exchange programmes, joint research, and international education initiatives, contributing to an academic environment characterised by global engagement, innovation, and sustainable development.

 

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SYMPOSIUM ‘EMISSIONS REDUCTION POTENTIAL OF WETLAND ECOSYSTEMS IN THE MEKONG DELTA’ /symposium-emissions-reduction-potential-of-wetland-ecosystems-in-the-mekong-delta/ /symposium-emissions-reduction-potential-of-wetland-ecosystems-in-the-mekong-delta/#respond Thu, 25 Jun 2026 02:28:06 +0000 /?p=24850

On 24 June, VNUHCM–University of Science (HCMUS) hosted a symposium titled ‘Emissions Reduction Potential of Wetland Ecosystems in the Mekong Delta’. The event brought together scientists, experts, business leaders, and policymakers to share recent research findings and propose scientific and technological solutions aimed at reducing greenhouse gas emissions and adapting to climate change.

As Ģý implements commitments to achieve net-zero emissions by 2050, wetland ecosystems are increasingly recognised not merely for biodiversity conservation, but as vital natural infrastructure capable of absorbing and storing carbon whilst helping to regulate the climate. Accurately assessing the potential of these ecosystems has become essential for developing resource management policies, advancing carbon markets, and implementing nature-based adaptation strategies.

The symposium, ‘Emissions Reduction Potential of Wetland Ecosystems in the Mekong Delta’, was held at VNUHCM–University of Science (HCMUS) on 24 June 2026.

In the opening address, Dr Phạm Quỳnh Hương, Director of the Research Centre for Greenhouse Gases and Climate Change at HCMUS, noted that climate change increasingly impacts the lives, production, and livelihoods of local communities. Consequently, research into greenhouse gas mitigation solutions is urgent for Ģý and crucial for achieving global sustainable development goals.

According to Dr Phạm Quỳnh Hương, ecosystems such as mangroves, melaleuca forests, seasonally inundated grasslands, aquaculture areas, and rice cultivation systems possess the capacity to store substantial volumes of carbon within biomass and soil. Conversely, these environments can also release methane and nitrous oxide if managed improperly. Therefore, integrating research into hydrology, soil characteristics, and nutrient cycles with advanced monitoring technologies will establish the scientific foundation required to maximise carbon sequestration whilst mitigating greenhouse gas emissions.

Dr Phạm Quỳnh Hương, Director of the Research Centre for Greenhouse Gases and Climate Change, delivering the opening address.

A notable highlight of the symposium was the growing synergy between environmental science and digital technology in emissions reduction research.

Presentations introduced several novel research directions, including the application of IoT and artificial intelligence (AI) in water regulation for low-emission rice production; the deployment of the Eddy Covariance method to measure gas exchange within agricultural and forestry ecosystems; and investigations into the relationships between flooding regimes, soil properties, and greenhouse gas emissions in the seasonally inundated grasslands of Tram Chim National Park.

Furthermore, studies on the ‘blue carbon’ sequestration capacity of aquatic plants in U Minh Thuong National Park, the role of mangroves in emissions reduction and climate adaptation, and life cycle assessments of black tiger shrimp raised under mangrove canopies in Ca Mau opened new avenues for linking scientific research with green economic development and carbon markets.

Experts agreed that effectively exploiting the potential of wetland ecosystems demands close coordination between environmental science, monitoring technology, resource management, and economic mechanisms, particularly carbon markets and green finance.

Experts sharing research findings and scientific-technological solutions related to greenhouse gas emissions reduction in wetland ecosystems.

Discussions at the symposium provided further scientific evidence to inform wetland management policies that simultaneously enhance ecological, economic, and climate values. The event also established a framework for strengthening collaboration between universities, research institutes, businesses, and regulatory bodies to develop ecosystem-based mitigation solutions, thereby supporting sustainable development in the Mekong Delta and contributing to the national emissions reduction strategy.

Scientists, experts, business representatives, and regulatory officials discussing sustainable management solutions for wetland resources in the Mekong Delta.

 

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VNUHCM–UNIVERSITY OF SCIENCE AND SAMTEC VIET NAM DISCUSS EDUCATIONAL COOPERATION TO EXPAND CAREER OPPORTUNITIES FOR STUDENTS /vnuhcm-university-of-science-and-samtec-viet-nam-discuss-educational-cooperation-to-expand-career-opportunities-for-students/ /vnuhcm-university-of-science-and-samtec-viet-nam-discuss-educational-cooperation-to-expand-career-opportunities-for-students/#respond Mon, 22 Jun 2026 09:21:00 +0000 /?p=24824

On 22 June, the VNUHCM–University of Science (HCMUS) hosted a meeting with SAMTEC Ģý Co., Ltd. to discuss strategic directions for cooperation in education, internships, and the development of high-quality human resources.

Attending the meeting on behalf of SAMTEC Ģý were Mr Chung Teck Chin, General Director; Ms Jennifer Nguyen, Head of Human Resources; Ms Anh Dang, HR Supervisor; Mr Michael Bui, Head of Engineering; Mr Jonathan Long, Training Supervisor; and Ms Sam Dang, Recruitment Specialist.

Representing HCMUS were Associate Professor Trần Minh Triết, Vice-President; Associate Professor Võ Hồng Hải, Deputy Head of the Office of External Relations; Dr Bùi Trọng Tú, Dean of the Faculty of Electronics and Telecommunications; and Associate Professor Huỳnh Văn Tuấn, Dean of the Faculty of Physics and Engineering Physics.

Associate Professor Trần Minh Triết, Vice-President of the VNUHCM–University of Science, delivering welcoming remarks to the delegation from SAMTEC Ģý Co., Ltd.

During the session, both sides shared insights into development strategies, human resource demands, and potential opportunities for collaboration. These discussions took place against the backdrop of rapid growth in the electronics, semiconductor, and high-tech industries, which drives an increasing demand for engineers equipped with solid expertise and the agility to adapt to real-world working environments.

Associate Professor Trần Minh Triết, Vice-President, emphasised that HCMUS consistently prioritises expanding partnerships with industry to enable students to gain early exposure to manufacturing, research, and technological development. Through internships, career experiences, and professional collaboration, students are given the chance to apply theoretical knowledge to practical scenarios whilst enhancing their capability to meet the requirements of the labour market.

The representatives from SAMTEC Ģý introduced the corporate operations in developing electronic connectivity solutions, encompassing high-speed interconnect technology, cable systems, optical solutions, RF, and applications serving the electronics industry. Founded in the United States in 1976, SAMTEC operates as a global technology enterprise with a manufacturing and technical support network spanning multiple countries.

Representatives from SAMTEC Ģý Co., Ltd. introducing corporate operations and avenues for collaboration with the VNUHCM–University of Science.

A key focus of the meeting was the Co-op Program designed for final-year students with outstanding academic records (achieving a GPA of 3.5/5 or above). According to the proposal from the company, this initiative allows students to combine academic studies with practical work at the enterprise, structured as part-time employment during the academic year and full-time placement over the summer vacation. Students participating in this scheme not only gain access to a professional working environment and accumulate practical experience but also receive support throughout the placement, alongside prospects of transitioning into permanent roles upon graduation.

Furthermore, both parties exchanged views on internship programmes, recruitment drives, career guidance activities, and talent acquisition channels tailored for engineering students, particularly within the fields of electronics–telecommunications and engineering physics.

The meeting opens up promising prospects for cooperation between HCMUS and SAMTEC Ģý in aligning higher education with industry needs. This partnership creates further opportunities for students to engage with emerging technologies, experience international working environments, and prepare for professional careers whilst still at university.

Representatives from both institutions discussing collaborative frameworks for education, internships, recruitment, and university–industry links.
Representatives from the VNUHCM–University of Science and SAMTEC Ģý Co., Ltd. gathering for a commemorative photograph following the meeting.

 

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SCIENTIFIC SEMINAR ON HARNESSING REGIONAL OCEAN MODELS TO GUIDE CLIMATE ADAPTATION IN ASIA /scientific-seminar-on-harnessing-regional-ocean-models-to-guide-climate-adaptation-in-asia/ /scientific-seminar-on-harnessing-regional-ocean-models-to-guide-climate-adaptation-in-asia/#respond Fri, 19 Jun 2026 09:48:23 +0000 /?p=24837

On 19 June, VNUHCM–University of Science (HCMUS) hosted a scientific seminar entitled “Navigating the Future: Harnessing Regional Ocean Models to Guide Climate Adaptation in Asia”. The event attracted lecturers, researchers, and students interested in oceanography, meteorology, hydrology, and climate science.

The keynote speaker was Professor Javier Zavala-Garay, a member of the Ocean Modeling Group at Rutgers University. The seminar focused on the role of regional ocean models in studying marine environmental changes and supporting the development of climate change adaptation strategies in Asia.

The seminar was attended by Associate Professor Võ Lương Hồng Phước – Head of the Department of Oceanography, Meteorology and Hydrology; Associate Professor Đặng Trường An – Deputy Head of the Department, alongside lecturers, researchers, and students from the Faculty of Physics and Engineering Physics.

During the event, Professor Javier Zavala-Garay introduced the Regional Ocean Modeling System (ROMS) – one of the most widely used numerical modeling systems in the study of ocean dynamics. By simulating regional oceanographic features at high resolution, ROMS enables the analysis of variables such as currents, temperature, salinity, and ocean-atmosphere interactions.

According to the speaker, as climate change increasingly impacts coastal regions, ocean models serve not only foundational research but also function as essential tools for forecasting, risk assessment, and formulating adaptation scenarios.

Professor Javier Zavala-Garay (Rutgers University) presenting at the scientific seminar entitled “Navigating the Future: Harnessing Regional Ocean Models to Guide Climate Adaptation in Asia”.

The presentation also focused on the applied research of regional ocean models in Vietnam and Indonesia – two nations with extensive coastlines that are significantly affected by variations in the climate-ocean system. The simulation results contribute to a deeper understanding of regional oceanographic characteristics, whilst providing a scientific foundation for marine resource management, environmental protection, and the planning of climate change adaptation measures.

In addition to technical discussions, the seminar provided an academic forum for international experts to engage with HCMUS lecturers, researchers, and students. Topics concerning ocean modeling, data science, marine environmental forecasting, and interdisciplinary research trends in climate science were dynamically discussed.

Through this programme, learners gained access to modern research methodologies and emerging development paths within oceanography, meteorology, hydrology, and environmental science. This initiative represents one of many activities aimed at strengthening international academic connections, whilst fostering education and research in fields related to marine science and climate change at HCMUS.

Lecturers and students engage in discussions and pose questions to Professor Javier Zavala-Garay during the Q&A session.
Professor Javier Zavala-Garay with lecturers from the Department of Oceanography, Meteorology and Hydrology, Faculty of Physics and Engineering Physics at the seminar.

 

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[VNUHCM S&T PROJECT EVALUATION] ESTIMATING ATMOSPHERIC DEPOSITION OF HEAVY METALS IN SOUTHERN VIETNAMESE MEGACITY /vnuhcm-st-project-evaluation-estimating-atmospheric-deposition-of-heavy-metals-in-southern-vietnamese-megacity/ /vnuhcm-st-project-evaluation-estimating-atmospheric-deposition-of-heavy-metals-in-southern-vietnamese-megacity/#respond Fri, 19 Jun 2026 04:34:57 +0000 /?p=24908

On 18 June, VNUHCM–University of Science (HCMUS) organised the evaluation council for a Category C university-level scientific project entitled “Estimating Atmospheric Deposition of Heavy Metals in Southern Vietnamese Megacity”. The project was led by Dr Nguyễn Lý Sỹ Phú as principal investigator, alongside team members Assoc. Prof. Tô Thị Hiền, MSc Trần Ánh Ngân, MSc Võ Thị Tâm Minh, and BSc Trần Hoàng Minh.

Urban air pollution represents a critical area of concern within environmental research. In Ho Chi Minh City, previous studies have predominantly focused on assessing the concentration of airborne pollutants, particularly suspended particulate matter, whilst the deposition of atmospheric contaminants onto land surfaces and water bodies remains insufficiently documented. To address this research gap, the project was initiated to evaluate the extent of atmospheric heavy metal deposition, thereby providing a more robust scientific foundation for assessing the ecological impacts of air pollution on urban ecosystems.

Throughout the investigation, the research team developed a tailored methodology and engineered a rainwater sampling system suitable for the climatic conditions of Ho Chi Minh City. Collected samples underwent analysis via Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to determine the concentration of various metallic elements, including Zn, Mn, Cu, Cr, Ni, Pb, V, and As.

The findings indicate that heavy metal concentrations in rainwater within the surveyed area mirror characteristics typically observed in urban environments heavily influenced by vehicular traffic, industrial manufacturing, and dust-generating sources. Among these elements, Zn emerged as the predominant component across the analysed samples. In addition to pollutant concentrations, the study examined the influence of heavy rainfall in Ho Chi Minh City on the transport and total deposition load of atmospheric metals into the environment.

Dr Nguyễn Lý Sỹ Phú presenting the project summary before the evaluation council.

By integrating analytical models such as the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model and Principal Component Analysis (PCA), the researchers identified potential source groups contributing to the presence of heavy metals in rainwater. These sources encompass transport activities, industrial production, construction operations, and natural dust sources.

The outcomes of this research contribute to a broader approach in urban environmental assessment, extending beyond baseline air quality monitoring at specific times to evaluate the transfer of pollutants from the atmosphere into other environmental compartments such as soil and water. The gathered data offer a valuable reference framework for subsequent studies regarding the distribution, accumulation, and ecological consequences of heavy metals within urban environments.

In terms of academic publications, the project yielded one paper in the Q1-ranked international journal Environmental Science: Atmospheres published by the Royal Society of Chemistry, one paper in a Q2 international journal, and one research article in the Science and Technology Development Journal – Natural Sciences. Furthermore, the project supported capacity building by contributing to the academic completion of one master’s student and three undergraduate students.

The evaluation council concluded that the project successfully fulfilled the research objectives set out in the proposal, employing rigorous methodologies and delivering scientifically significant results for environmental monitoring and quality assessment; the council subsequently voted unanimously to approve the official acceptance of the project.

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[VNUHCM S&T PROJECT EVALUATION] RESEARCH ON THE ANOMALOUS HALL EFFECT OF FERROMAGNETIC MATERIALS USING FIRST-PRINCIPLES SIMULATION /vnuhcm-st-project-evaluation-research-on-the-anomalous-hall-effect-of-ferromagnetic-materials-using-first-principles-simulation/ /vnuhcm-st-project-evaluation-research-on-the-anomalous-hall-effect-of-ferromagnetic-materials-using-first-principles-simulation/#respond Thu, 18 Jun 2026 04:00:11 +0000 /?p=24898

On 18 June, the VNUHCM–University of Science (HCMUS) convened an evaluation committee for a VNUHCM-level science and technology project entitled “Research on the anomalous Hall effect of ferromagnetic materials using first-principles simulation,” chaired by Dr Trịnh Thị Lý, the project examines the control mechanisms of the anomalous Hall effect within ferromagnetic materials, aiming to provide a scientific foundation for designing materials applicable to the field of spintronics.

The anomalous Hall effect represents a crucial phenomenon in magnetic materials, holding significant potential for application in next-generation spintronic devices. A primary area of current academic interest involves identifying mechanisms capable of modulating and enhancing anomalous Hall conductivity (AHC).

Within the framework of this research, the investigators focused on investigating hexagonal close-packed cobalt (hcp-Co) to evaluate how elastic strain influences the electronic characteristics and transport properties of the material. By combining the first-principles simulation method (ab initio) with a tight-binding computational model, the research team analysed the quantum physical mechanisms associated with variations in anomalous Hall conductivity under mechanical strain.

The findings demonstrate that the anomalous Hall conductivity of hcp-Co can be adjusted via elastic strain within a range from -2% to +2%. The AHC value reaches a maximum at a compressive strain of -0.5%, exhibiting a variation of up to 24% compared to the pristine state. Computational results indicate that this modification relates to the shift of energy band anti-crossing points closer to the Fermi level, which alters the Berry curvature distribution and directly affects the anomalous Hall conductivity of the material.

Dr Trịnh Thị Lý delivering the project summary report before the Evaluation Committee.

Alongside these scientific outcomes, the project successfully delivered the academic products and training objectives originally set forth. The research group developed an anomalous Hall conductivity (AHC) calculation module integrated into the bphase programme, published a scientific paper entitled “Tuning the Anomalous Hall Conductivity of hcp-Cobalt by Constant-Volume Biaxial Strain” in a journal within the IEEJ Transactions system, and contributed to postgraduate education by supervising one Master’s student to completion.

The outcomes of this research contribute to the scientific framework regarding the ability to control the anomalous Hall effect via mechanical strain in ferromagnetic materials. Furthermore, the work establishes an analytical approach for investigating and optimising magnetic materials to serve spintronics research.

The evaluation committee agreed that the project fulfilled all registered research contents and deliverables, whilst acknowledging the achievements in elucidating the physical mechanisms of the anomalous Hall effect in ferromagnetic materials. The committee members unanimously approved the evaluation results of the project.

 

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[VNUHCM S&T PROJECT EVALUATION] FABRICATION OF GOLD NANOPLASMONIC SUBSTRATES FOR SURFACE-ENHANCED RAMAN SPECTROSCOPY APPLICATIONS /vnuhcm-st-project-evaluation-fabrication-of-gold-nanoplasmonic-substrates-for-surface-enhanced-raman-spectroscopy-applications/ /vnuhcm-st-project-evaluation-fabrication-of-gold-nanoplasmonic-substrates-for-surface-enhanced-raman-spectroscopy-applications/#respond Wed, 17 Jun 2026 05:30:36 +0000 /?p=24890

On 17 June, the Evaluation Committee for the VNUHCM-level research project entitled ‘Research and fabrication of gold metallic nanostructured plasmonic substrates for surface-enhanced Raman spectroscopy applications,’ chaired by MSc Nguyễn Duy Khánh, alongside Associate Professor Lê Vũ Tuấn Hùng and Dr Lê Văn Ngọc.

The project focused on the research and fabrication of SERS (Surface-Enhanced Raman Scattering – surface-enhanced Raman spectroscopy) sensor substrates based on gold nanostructures. These substrates are designed for the detection of Auramine O, a hazardous organic dye subject to strict regulation in food safety.

During the investigation, the research group fabricated three distinct gold nanostructure morphologies: gold nanospheres (GNS), gold nanorods (GNR), and gold nanourchins (GNU). The team subsequently evaluated how material morphology influences the efficiency of Raman signal enhancement.

MSc Nguyễn Duy Khánh presenting the final research report on the VNUHCM-level project to the Evaluation Committee.

A key highlight of the research is the systematic assessment of the relationship between gold nanostructure morphology and SERS performance under identical measurement conditions. The findings demonstrate that the SERS signal increases in the order of GNS3 < GNR120 < GNU25. Specifically, the gold nanourchin structure (GNU25) achieved the highest enhancement efficiency due to the high density of sharp spikes on the surface, which facilitates the formation of numerous electromagnetic ‘hot spots’—localised sites capable of strongly amplifying the Raman signal.

The experimental results indicate that the GNU25-structured SERS substrate achieved the lowest limit of detection for Auramine O at 0.01 mg/L. The fabricated SERS substrates also demonstrated excellent uniformity, reproducibility, and stability after six months of storage. These outcomes help guide the development of high-performance plasmonic nanomaterials for rapid, sensitive, and non-destructive Raman sensing systems, benefiting fields such as food safety, environmental monitoring, and analytical chemistry.

Within the framework of this project, the research group published one international paper in a journal ranked Q2 by SCImago, whilst contributing to the training of one doctoral candidate and two undergraduate students.

The Evaluation Committee commended the project for appropriate research content, feasible methodologies, reliable results, and practical application value. Having fulfilled all the established objectives, the project was unanimously approved and highly commended by the Committee.

The Evaluation Committee takes a commemorative photograph with MSc Nguyễn Duy Khánh (centre) at the project assessment session.

 

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[DOCTORAL THESIS DEFENCE] DOCTORAL RESEARCHER TRẦN THỊ ANH THOA SUCCESSFULLY DEFENDS DOCTORAL THESIS IN PLANT PHYSIOLOGY /doctoral-researcher-tran-thi-anh-thoa-successfully-defends-doctoral-thesis-in-plant-physiology/ /doctoral-researcher-tran-thi-anh-thoa-successfully-defends-doctoral-thesis-in-plant-physiology/#respond Wed, 17 Jun 2026 04:33:44 +0000 /?p=24881
Doctoral researcher Trần Thị Anh Thoa presenting her doctoral thesis in Plant Physiology before the institutional Doctoral Thesis Assessment Committee at the VNUHCM–University of Science (HCMUS).

On 17 June 2026, at the VNUHCM–University of Science (HCMUS), doctoral researcher Trần Thị Anh Thoa (2019 cohort) successfully defended her doctoral thesis in Plant Physiology. The thesis, entitled “Contribution to understanding and controlling the development of water hyacinth Eichhornia crassipes (Mart.) Solms”, was supervised by Associate Professor Dr Bùi Trang Việt and Dr Đỗ Thường Kiệt.

Water hyacinth (Eichhornia crassipes) is an aquatic plant species characterised by rapid growth and the capacity to form dense vegetative mats on water surfaces through asexual reproduction, particularly via stolon development. The proliferation of water hyacinth in freshwater bodies can adversely affect aquatic ecosystems, waterway navigation, and water resource exploitation and utilisation. However, current control methods for this species remain limited in terms of efficacy and cost-effectiveness.

In this study, doctoral researcher Trần Thị Anh Thoa focused on elucidating the growth characteristics and stolon-forming capacity of water hyacinth, whilst investigating the impact of sodium chloride (NaCl) in controlling the development of the aquatic weed.

The research findings indicate that, under in vitro culture conditions, NAA at a concentration of 0.25 mg/L is capable of stimulating adventitious root development, whereas BA at concentrations of 0.5 – 1 mg/L promotes lateral branching and stolon elongation. These results contribute additional data regarding the role of plant growth regulators in the development of water hyacinth.

The Doctoral Thesis Assessment Committee in Plant Physiology reviewing and discussing the research findings presented by doctoral researcher Trần Thị Anh Thoa.

Furthermore, the thesis demonstrated the impact of NaCl treatment on water hyacinth. Treatment with 3% NaCl supplemented with 1‰ Tween 20 causes irreversible damage to the leaves, including permanently open stomata, chloroplast deformation, diminished chlorophyll content, impaired photosynthetic activity, and alterations to the fast chlorophyll fluorescence transient (OJIP) curve. The study also recorded the migration and accumulation of Na+ and Cl ions in the leaves, petioles, and rhizomes, alongside alterations to phytohormone balance within the rhizomes.

Notably, field trial results in a lake with a water hyacinth coverage exceeding 384 m² revealed that spraying 6% NaCl (supplemented with 1‰ Tween 20) over the entire foliar surface significantly reduces survival rates and stolon-forming capacity. Upon repeating the treatment after 4 weeks, approximately 40% of the mother plants failed to recover, and the proportion of plants with stolons decreased to 30% compared to the control group.

The outcomes of the thesis have contributed to a clearer understanding of the growth mechanisms, development, and responses of water hyacinth under salinity stress, whilst opening up novel avenues for researching more efficient and feasible measures to control the expansion of this aquatic plant.

In addition to the achievements realised, the thesis proposes future research directions, such as conducting deeper investigations into phytohormone signalling pathways under salinity stress, as well as optimising NaCl treatment methods for appropriate application in controlling water hyacinth within canals and waterways.

The Assessment Committee determined that the thesis possesses significant scientific value, providing further baseline data for studies on aquatic plant physiology, and officially recognised the work as meeting the doctoral thesis standards of the educational institution.

Doctoral researcher Trần Thị Anh Thoa posing for a commemorative photograph with the Assessment Committee and her academic supervisors at the doctoral thesis defence ceremony in Plant Physiology.

 

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[DOCTORAL THESIS DEFENCE] DOCTORAL RESEARCHER TRẦN PHƯƠNG DUNG SUCCESSFULLY DEFENDS DOCTORAL THESIS IN THEORETICAL AND PHYSICAL CHEMISTRY /doctoral-thesis-defence-doctoral-researcher-tran-phuong-dung-successfully-defends-doctoral-thesis-in-theoretical-and-physical-chemistry/ /doctoral-thesis-defence-doctoral-researcher-tran-phuong-dung-successfully-defends-doctoral-thesis-in-theoretical-and-physical-chemistry/#respond Sun, 14 Jun 2026 09:32:49 +0000 /?p=24875

On 13 June, at VNUHCM–University of Science (HCMUS), doctoral researcher Trần Phương Dung, from the Theoretical and Physical Chemistry doctoral programme (2020 cohort), successfully defended a doctoral thesis entitled “A computational study of the oxygen reduction reaction on metalloporphyrin catalysts”. The research was supervised by Associate Professor Đỗ Ngọc Sơn (VNUHCM–University of Technology) and Associate Professor Phạm Trần Nguyên Nguyên (HCMUS).

During the viva, Trần Phương Dung presented key research findings regarding the catalytic activity of metalloporphyrin materials and heterogeneous metalloporphyrin catalysts supported on two-dimensional MoS₂ for the oxygen reduction reaction (ORR). The ORR represents a cornerstone reaction in energy conversion processes, particularly within the development of catalytic materials for fuel cells and clean energy systems.

To conduct the study, the doctoral researcher employed computational chemistry simulation methods based on density functional theory (DFT), combined with thermodynamic modelling. This approach enabled the investigation of electronic structure alterations, charge transfer processes, and the energetic mechanisms of reaction steps at the atomic level.

The thesis focuses on three primary research directions. Firstly, the study investigates the influence of functional groups (methyl, amino, and carboxyl) substituted at the meso position of the iron porphyrin ring. This investigation clarifies the role of these substituents in modulating charge distribution around the active iron (Fe) metal centre, alongside the subsequent impact on the catalytic activity of the material.

Doctoral researcher Trần Phương Dung presenting the research findings before the Thesis Examination Committee.

Secondly, the research evaluates the heterogeneous catalytic system MeTMP/MoS₂ (where Me = Fe, Co, Ni). Computational results indicate that the interaction between the porphyrin layer and the MoS₂ support medium can enhance catalytic properties. The cobalt-containing catalytic system was identified as possessing high potential for the ORR, owing to a capacity for reducing activation energy and suppressing the competing hydrogen evolution reaction (HER).

Thirdly, the thesis examines the impact of doping heteroatoms (B, P, S, Co) into the central region of the CoTMP/MoS₂ catalyst. The findings demonstrate that doping with certain elements, such as boron (B) and phosphorus (P), provides the capability to tune reaction energies, thereby contributing to enhanced selectivity of the catalytic material towards desired reaction pathways.

The outcomes of this thesis contribute valuable theoretical foundations to the study of reaction mechanisms on catalytic material surfaces via computational chemistry methods. Furthermore, the research offers significant insights to guide the design and development of metalloporphyrin-based oxygen reduction catalysts for applications within the clean energy sector.

The Examination Committee affirmed that the thesis rests upon a sound scientific foundation, employs appropriate research methodologies, and holds substantial reference value for subsequent studies in related fields. Consequently, the Committee recommended that Trần Phương Dung be awarded the degree of Doctor of Philosophy in Chemistry.

Doctoral researcher Trần Phương Dung taking a commemorative photograph with the Thesis Examination Committee.

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UNIVERSITY OF SCIENCE PARTNERS WITH THE INSTITUTE OF COASTAL ENGINEERING AND REECOTECH /university-of-science-partners-with-the-institute-of-coastal-engineering-and-reecotech/ /university-of-science-partners-with-the-institute-of-coastal-engineering-and-reecotech/#respond Sat, 13 Jun 2026 11:29:03 +0000 /?p=24794

On the morning of 12 June, VNUHCM–University of Science (HCMUS) signed Memoranda of Understanding (MoUs) with the Institute of Coastal Engineering (under the Ģý Academy for Water Resources) and REECO Science and Technology Co., Ltd (Reecotech), aimed at strengthening the connections between education, research, and professional practice.

The signing ceremony took place within the framework of the “Marine Space and Climate Change” seminar, organised by the Faculty of Physics and Engineering Physics, with the participation of representatives from the partner institutions, lecturers, researchers, and students.

According to the agreement signed with the Institute of Coastal Engineering, the two sides will coordinate to implement practical training and internship programmes, supporting students in accessing research and professional working environments. Concurrently, the Institute of Coastal Engineering and HCMUS will enhance cooperation in teaching activities, expert exchanges, the sharing of professional experience, and the development of scholarship programmes for students. Through these initiatives, students will gain further opportunities to access the fields of marine research, monitoring, and resource management; progressively improving practical capacity and the ability to adapt to professional working environments after graduation.

Dr. Phạm Văn Tùng, Director of the Institute of Coastal Engineering, and Assoc. Prof. Trần Lê Quan, President of VNUHCM–University of Science, performing the signing ceremony of the Memorandum of Understanding.

Alongside the expansion of cooperation with research institutes, HCMUS also signed a Memorandum of Understanding with REECO Science and Technology Co., Ltd (Reecotech). The agreement aims to enhance alignment between educational activities and the practical needs of enterprises, whilst creating conditions for students to access technologies, equipment, and applied solutions within the fields of Oceanography, Meteorology, Hydrology, and Environmental Science.

The collaborative contents focus on training support, human resource development, professional knowledge sharing, and the creation of opportunities for students to participate in internships, corporate visits, career exchanges, and professional development orientation. The involvement of the enterprise is expected to contribute to helping learners update technological trends, clearly understand the needs of the labour market, and enhance the ability to apply knowledge into practice.

Mr Trần Minh Hải, Director of REECO Science and Technology Co., Ltd, and Assoc. Prof. Trần Lê Quan, President of VNUHCM–University of Science, performing the signing ceremony of the Memorandum of Understanding.

On this occasion, the Institute of Coastal Engineering and Reecotech presented scholarships to students of Oceanography. This practical activity aims to encourage the spirit of learning and research, whilst supporting learners on the journey of pursuing marine science.

The establishment and expansion of the collaborative network with specialized research institutes and enterprises further affirm the strategic direction of HCMUS in connecting education, research, and reality. Through specific cooperation programmes, students receive additional opportunities to approach professional environments, enhance practical competence, and progressively prepare career foundations within the fields of oceanography, meteorology, hydrology, and environmental science.

 

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