A5100694911- Analytical Chemistry and Sensors
- Electrochemical sensors and biosensors
- Analytical chemistry methods development
- Flame retardant materials and properties
- Molecular Sensors and Ion Detection
- Advanced Fiber Optic Sensors
- Nanomaterials for catalytic reactions
- Advanced Chemical Sensor Technologies
- Mesoporous Materials and Catalysis
- Synthesis and properties of polymers
- Fire dynamics and safety research
- Advanced Photocatalysis Techniques
- Catalytic Processes in Materials Science
- Polymer Science and PVC
- High Temperature Alloys and Creep
- Water Quality Monitoring and Analysis
- Polymer Nanocomposites and Properties
- Concrete Corrosion and Durability
- Biosensors and Analytical Detection
- Microstructure and Mechanical Properties of Steels
- Forensic Toxicology and Drug Analysis
- Polymer composites and self-healing
- Fatigue and fracture mechanics
- Microfluidic and Capillary Electrophoresis Applications
- Electrochemical Analysis and Applications
Vietnam Academy of Science and Technology
2021-2024
Institute of Mining
2024
Thu Dau Mot University
2024
Bình Dương University
2024
City, University of London
2011-2023
Ho Chi Minh City University of Industry and Trade
2023
Vietnam National University Ho Chi Minh City
2016-2021
Thuyloi University
2021
Hanoi University of Science and Technology
2020
Ho Chi Minh City University of Science
2015-2019
Rice husk is one of the most abundant biomass resources in world, yet it not effectively used. This study focuses on sustainably rice-husk-extracted lignin, nano-lignin (n-Lignin), lignin-capped silver nanoparticles (LCSN), n-Lignin-capped (n-LCSN), and silica-silver (LCSSN), using them for antibacterial activities. The final n-Lignin-based products had a sphere-like structure, which size varied between 50 80 nm. We found that while n-Lignin lignin were less effective against Escherichia...
Drawing on the extended unified theory of acceptance and use technology (UTAUT2) task-technology fit (TTF) theory, we developed an integrated research model to explore factors affecting ChatGPT its subsequent effects whether users continue using recommend it others. We also examined main activities as well moderating role curiosity in relationships between various influencing use. conducted a quantitative study with data that collected from 671 Vietnam. found that, first, most UTAUT2 TTF...
The development, design, and evaluation of an intrinsic optical fiber pH sensor for low values (in the range 0.5-6) based on fluorescence from a novel coumarin dye, which is covalently immobilized onto end surface described. provides rapid response (of approximately 25 s) over this 0.5-6.0, showing with very good stability period several months. has also demonstrated insensitivity to ionic strength excellent photostability through series laboratory tests.
Waste durian peels derived-biochar (DP-BC) supported magnetic nickel ferrite (NiFe2O4) was successfully synthesized at various composite ratios of 5, 10, 15, 20, 25 and 30% between NiFe2O4 NPs DP-BC. The nanocomposites (DP-BC@NiFe2O4) were then applied to activate peroxydisulfate (PDS) for the removal moxifloxacin (MFX) from wastewater. textural, morphology, structure properties DP-BC@NiFe2O4 systematically characterized. initial catalytic activity assessed through MFX degradation efficiency...
A fiber-optic chemical sensor for the detection of cocaine has been developed, based on a molecularly imprinted polymer (MIP) containing fluorescein moiety as signalling group. The fluorescent MIP was formed and covalently attached to distal end an optical fiber. exhibited increase in fluorescence intensity response concentration range 0 - 500 μM aqueous acetonitrile mixtures with good reproducibility over one month. Selectivity others drugs also demonstrated.
The design, development, and evaluation of an optical fibre sensor for the detection Hg2+ in aqueous media are discussed detail this paper. A novel fluorescent polymeric material detection, based on a coumarin derivative (acting as fluorophore) azathia crown ether moiety mercury ion receptor), has been synthesized. fluorophore was covalently immobilized onto surface by polymerisation using imprinting technique exhibited significant increase fluorescence intensity response to via photoinduced...
To investigate the recent effects of climate change in upper Geum River basin South Korea, a detailed trend analysis 17 extreme indices based on 33 years (1988–2020) daily precipitation, and (minimum maximum) temperature data has been analyzed this study. Out indices, nine (eight) were (precipitation) data. Trend temporal scales (annual, seasonal, monthly) performed through Mann–Kendall test Theil–Sen slope method. Furthermore, Mann–Whitney–Pettit was also applied study, to detect abrupt...
Molecularly imprinted polymer (MIP) based fluorescent sensors require suitable moieties which respond to the binding event with significant fluorescence changes. Two novel polymerisable coumarins: 6-styrylcoumarin-4-carboxylic acid (SCC) and 6-vinylcoumarin-4-carboxylic (VCC) have been designed synthesised. These functional monomers allow for preparation of chiral amines, an important class pharmaceutical compounds. MIPs were prepared SCC VCC, using (-)-ephedrine as a template ethylene...
Abstract Knowledge of the distribution aspect ratios (ARs) in a chemically-synthesized colloidal solution Gold Nano Rods (GNRs) is an important measure determining quality synthesis, and consequently performance GNRs generated for various applications. In this work, algorithm has been developed based on Bellman Principle Optimality to readily determine AR synthesized solutions. This achieved by theoretically fitting longitudinal plasmon resonance obtained UV-visible spectroscopy. The from...
This paper explores the potential of creating a hybrid wireless sensor network (WSN) through establishment generic WSN platform, which allows for effective integration number novel optical fiber (wired) sensors. The aim is to maximize system created using advanced techniques coupled WSNs. In this design, each mote in configured as platform ease modules. work carried out, typical configuration used comprising LED light source, filter, photodiode, and an amplifying circuit. Thus, able record...
A series of organo‐phosphorus flame retardants (FRs) were studied in order to investigate their retarding performances for poly(vinyl chloride)/wood flour (PVC‐WF) composite. The FRs used include diammonium hydrogen phosphate (DAP), aluminum phosphonate (AHP), and triphenyl (TPP). effects incorporating different into PVC‐WF determined by UL‐94, TGA, FTIR, field emission scanning electron microscope (FE‐SEM). results revealed significantly improved retardancy thermal stability the presence...
The chemical recycling of postconsumer poly(ethylene terephthalate) (PET) bottles to produce highly thermally stable polyurethane foam (r-PUF) with excellent flame-retardant (FR) performance could be applied on an industrial scale create a sustainable industry. advantage oligo-ester-ether-diol obtained from waste PET glycolysis is its application in r-PUF, generating durable fire resistance at rather low loadings phosphorus–nitrogen FRs (P–N FRs), especially high moisture environments....
High levels of fine (PM2.5) and ultrafine (PM0.1) particles in the atmosphere can cause adverse effects on environment human health. This study aims at determining mass concentrations PM health risks pollution event days (episodes) Hanoi. Semi-daily samples (daytime night-time) PM2.5 PM0.1 were collected Hanoi University Science Technology, December 2021. The daily range 42 – 204 µg/m3 (average 123 µg/m3). Those varied from 9 to 30 22 There is negligible change daytime night-time...
Although N-isopropylacrylamide (NIPAM) has previously been used in molecular imprinting, it mostly considered as an 'inert' monomer, or included for its temperature-responsive nature, rather than a functional monomer responsible the interactions with template at recognition site. A comparative study of NIPAM and other traditional, monomers imprinting hydrogen bond donor template, bisphenol (BPA), is reported. Nuclear magnetic resonance titration data suggest that forms stronger complex BPA...
SiO 2 –TiO composite nanoparticle assemblies with or without alkyl surface modification and bearing a higher‐order hollow spherical morphology were successfully synthesized by simple, rapid, one‐pot, single‐step solvothermal method using precursor solution consisting of n ‐octyl‐Si(OMe) 3 Si(OEt) 4 , Ti(O i Pr) o ‐phthalic acid, acetic acid in methanol. The addition is essential for high yield content Si. Si/Ti atomic ratio the was easily controlled changing solutions. TiO nanoparticles...