@article{nguyen_nguyen_pham_tran_huynh_nguyen_le_2024, title={A novel enzymeless electrochemical sensor based on Ni(OH)2–NiO(OH) nanoelectrocatalyst for sensitive and selective detection of uric acid in PBS simulated body fluid}, url={http://dx.doi.org/10.1016/j.matchemphys.2024.129870}, DOI={10.1016/j.matchemphys.2024.129870}, abstractNote={Neurodegenerative diseases such as Parkinson's disease, Alzheimer's disease, and Huntington's disease are increasing worldwide. Therefore, the development of a low-cost, highly stable, and portable device for rapid and accurate risk assessment of relevant biomarkers, especially uric acid (UA), by electrochemical detection is currently attracting much attention. Herein, an electrochemical enzymeless UA sensor based on highly active Ni(OH)2–NiO(OH) nanoelectrocatalyst decorated on polyaniline–carbon nanotubes (PANI-CNTs) nanocomposite film, which was modified on a commercial screen-printed carbon electrode (SPCE) by electrodeposition method for sensitive and selective detection of UA. The sensing behavior of the modified electrode (named Ni(OH)2–NiO(OH)/PANI-CNTs/SPCE) is examined in a simulated body fluid (phosphate buffer solution-PBS, 0.01 M, pH 7.4) using differential pulse voltammetry (DPV) technique. The obtained results showed that the Ni(OH)2–NiO(OH)/PANI-CNTs/SPCE electrode exhibited outstanding electrocatalytic performance for the detection of UA at low potential (0.33 V vs. Ag/AgCl) without exhibiting interfering signals of dopamine (DA), glucose (Glu), ascorbic acid (AA) and urea. The sensor exhibited extra high sensitivity (386.8 μA mM−1 cm−2), high selectivity, good reproducibility, and durable stability with the ability to detect UA at both low (5–100 μM) and high (100–800 μM) levels with a very low detection limit down to 0.11 μM (individual detection of UA) and 0.29 μM (detection of UA in presence of DA) in a simulated body fluid. The recovery test using the proposed electrochemical sensor showed a high recovery percentage (>99.81 %), making it a viable option for practical applications.}, journal={Materials Chemistry and Physics}, author={Nguyen, Ngan Kim Thi and Nguyen, Hoang Anh and Pham, Viet Van and Tran, Man Van and Huynh, Nguyen Thanh Le and Nguyen, Hoang Thai and Le, Hai Viet}, year={2024}, month={Sep} }
 @article{pham_nguyen_pham_thai_pham_pham_vu_nguyen_tran_nguyen_et al._2024, title={One pot synthesis of amino silane grafted cerium phosphate (AS@CePO4) as an effective anticorrosion nanopigment for epoxy coating}, volume={192}, ISSN={["1873-331X"]}, url={http://dx.doi.org/10.1016/j.porgcoat.2024.108480}, DOI={10.1016/j.porgcoat.2024.108480}, journal={PROGRESS IN ORGANIC COATINGS}, author={Pham, Vu Gia and Nguyen, Ngan Kim Thi and Pham, Khanh Gia and Thai, Thuy Thu and Pham, Thuy Thu and Pham, Linh Duc and Vu, Oanh Ke and Nguyen, Duong Thu and Tran, Lam Dai and Nguyen, Hoang Thai and et al.}, year={2024}, month={Jul} }
 @article{pham_nguyen_huynh_le_nguyen_nguyen_shuib_tran_nguyen_2024, title={Selection of graphene as a conductive additive for biomass-based activated carbon electrode in capacitive deionization: acid-treated as a practical approach to reduce graphene content}, url={http://dx.doi.org/10.1515/pac-2024-0109}, DOI={10.1515/pac-2024-0109}, abstractNote={Abstract The use of graphene (GE) as a conductive additive for activated carbon (AC) electrode in capacitive deionization (CDI) has attracted much attention due to its high electrical conductivity. However, self-agglomeration by π–π interactions between individual GE sheets required the use of high content to ensure an efficient conductive network in the electrode, which limited its practical application. This work proposed an approach to reduce the GE content in the fabrication of biomass-based activated carbon electrode for CDI application. The stacking effect of GE sheets is inhibited when GE sheets functionalize with oxygen groups via acid treatment under ultrasonic condition. This helps to reduce GE content to less than 2 wt% in the fabrication of CDI electrodes. The electrode fabricated using 2 wt% treated GE (T-GE) achieved the superior capacitance of 54 F/g, twice that of the pristine AC. The desalination process using as-prepared electrodes was evaluated by batch-mode CDI system with the initial NaCl solution of 2000 ppm and 3000 ppm at various applied voltages. The AC/T-GE 2 % electrode showed excellent performance with a desalination capacity greater than 10 mg/g, and reached an adsorption rate of 1.93 mg/g.min in both solutions under an applied voltage 1.2 V.}, journal={Pure and Applied Chemistry}, author={Pham, Thi Nam and Nguyen, Thi Thom and Huynh, Le Thanh Nguyen and Le, Viet Hai and Nguyen, Thi Kim Ngan and Nguyen, Tuan Anh and Shuib, Raa Khimi and Tran, Dai Lam and Nguyen, Tuan Anh}, year={2024}, month={Mar} }
 @article{nguyen_tran_nguyen_phạm_le_2024, title={Synthesis and characterization of α-(4-(2,3-hydroxylpropoxy)phenylimino)-o-cresol Schiff base as an effective UV-absorber for ink systems}, url={http://dx.doi.org/10.1016/j.jphotochem.2024.115758}, DOI={10.1016/j.jphotochem.2024.115758}, abstractNote={Schiff base is a diverse group of organic compounds and has potential as a UV absorber for ink systems due to its high UV protection, simple synthesis, and high dispersion in organic matrices. In this work, a novel Schiff base α-(4-(2,3-dihydroxylpropoxy)phenylimino)-o-cresol (named GMA-I) was synthesized and investigated as a UV absorber for ink system. The UV-protection of GMA-I was evaluated on ink-coated duplex substrate samples via color measurement using an accelerated UV test chamber. The results showed that the GMA-I exhibited strong absorption in both UVA and UVB regions with an extra high molar absorption coefficient of 43,554 M−1 cm−1, and high thermal stability of 271.4 °C. Interestingly, the GMA-I showed high UV protection for ink platform at low content of 2 wt% thank to the intramolecular proton transfer mechanism and therefore potential as a UV absorber additive for ink systems.}, journal={Journal of Photochemistry and Photobiology A: Chemistry}, author={Nguyen, Thu A. and Tran, Phu T. and Nguyen, Ngan K.T. and Phạm, Anh Vũ Hồ and Le, Hai Viet}, year={2024}, month={Oct} }
 @article{nguyen_vietnam national university ho chi minh city_dang_nguyen_tran_le_science_vietnam national university ho chi minh city_vietnam national university ho chi minh city_vietnam national university ho chi minh city_et al._2023, title={Electrochemical sensor for detection of uric acid using screen-printed electrodes modified with NiO/PANI-Graphene}, url={http://dx.doi.org/10.32508/stdjns.v7i4.1286}, DOI={10.32508/stdjns.v7i4.1286}, abstractNote={Uric acid (UA) is a product of the catabolism of purine bases (adenine and guanidine) of nucleic acids that occurs naturally in the human body. The analysis of UA plays an important role in diagnosing and treating diseases such as gout, kidney stones, diabetes, heart disease, and Lesch-Nyhan syndrome. UA is analysed in the laboratory by the enzymatic colorimetric method with a time consuming of approximately one hour. Currently, electrochemical sensors are considered as a potential approach in the rapid quantification of UA due to the advantages of rapid analysis, low cost, few samples required for analysis, compact design and easy to use and do not require highly skilled technicians like traditional analytical methods. In this study, a commercial printed electrode (SPE) was surface-modified with a polyaniline-graphene (PANI-Graphene) composite coating and functionalize the surface of a PANI-Graphene film with a NiO electrochemical catalyst by cyclic voltammetry (CV) method. The fabricated electrode (designated NiO/PANI-Graphene/SPE) was used for UA analysis in a simulated human fluid medium (PBS, pH 7.4). The results show that the NiO/PANI-Graphene/SPE sensor electrode has good electrocatalytic activity for the oxidation of UA in the potential range of 0.3 to 0.5 V. Characteristically, the sensor has a wide linear range in the concentration range of 10 to 1750 μM with a high sensitivity of 29.5 μA mM-1 cm-2 and a low detection limit of 5.00 μM (S/N = 3). The NiO/PANI-Graphene/SPE sensor electrode has potential applications in the development of non-enzymatic electrochemical sensors for the rapid quantification of UA content in human body fluids.}, journal={Science and Technology Development Journal - Natural Sciences}, author={Nguyen, Ngan Thi Kim and Vietnam National University Ho Chi Minh City, Vietnam and Dang, Y Ngoc Thi and Nguyen, Anh Hoang and Tran, Man Van and Le, Hai Viet and Science, Ho Chi Minh City and Vietnam National University Ho Chi Minh City, Vietnam and Vietnam National University Ho Chi Minh City, Vietnam and Vietnam National University Ho Chi Minh City, Vietnam and et al.}, year={2023} }
 @article{mai_le_nguyen_pham_nguyen_huynh_nguyen_2022, title={Influence of thickness and morphology of MoS<sub>2</sub> on the performance of counter electrodes in dye-sensitized solar cells}, volume={13}, url={http://dx.doi.org/10.3762/bjnano.13.44}, DOI={10.3762/bjnano.13.44}, abstractNote={Non-platinum electrodes for photoelectric devices are challenging and attractive to the scientific community. A thin film of molybdenum disulfide (MoS2) was prepared on substrates coated with fluorine-doped tin oxide (FTO) to substitute the platinum counter electrode (CE) for dye-sensitized solar cells (DSSCs). Herein, we synthesized layered and honeycomb-like MoS2 thin films via the cyclic voltammetry (CV) route. Thickness and morphology of the MoS2 thin films were controlled via the concentration of precursor solution. The obtained results showed that MoS2 thin films formed at a low precursor concentration had a layered morphology while a honeycomb-like MoS2 thin film was formed at a high precursor concentration. Both types of MoS2 thin film were composed of 1T and 2H structures and exhibited excellent electrocatalytic activity for the I3-/I- redox couple. DSSCs assembled using these MoS2 CEs showed a maximal power conversion efficiency of 7.33%. The short-circuit value reached 16.3 mA·cm-2, which was higher than that of a conventional Pt/FTO CE (15.3 mA·cm-2). This work reports for the first time the possibility to obtain a honeycomb-like MoS2 thin film morphology by the CV method and investigates the effect of film structure on the electrocatalytic activity and photovoltaic performance of CEs for DSSC application.}, journal={Beilstein Journal of Nanotechnology}, publisher={Beilstein Institut}, author={Mai, Lam Thuy Thi and Le, Hai Viet and Nguyen, Ngan Kim Thi and Pham, Van La Tran and Nguyen, Thu Anh Thi and Huynh, Nguyen Thanh Le and Nguyen, Hoang Thai}, year={2022}, month={Jun}, pages={528–537} }
 @article{nguyen_pham_nguyen_nguyen_nguyen_nguyen_pham_huynh_nguyen_nguyen_et al._2023, title={PANI-CNTs Microstructure with Interconnected NiO–NiOOH Particles as Selective Sensing Interface for Methanol Electrochemical Sensor}, volume={34}, url={http://dx.doi.org/10.1007/s10876-022-02297-4}, DOI={10.1007/s10876-022-02297-4}, number={3}, journal={Journal of Cluster Science}, publisher={Springer Science and Business Media LLC}, author={Nguyen, Thom Thi and Pham, Nam Thi and Nguyen, Dien Thi and Nguyen, Phuc Xuan and Nguyen, Kim Ngan Thi and Nguyen, Thu Trang Thi and Pham, Viet Van and Huynh, Thanh Nguyen Le and Nguyen, Hoang Thai and Nguyen, Anh Tuan and et al.}, year={2023}, month={May}, pages={1259–1267} }
 @article{ngan_thom_an_le_nam_huynh_viet_trang_hoang_tran_2021, title={Design of NiOOH/PANI-Gr and NiOOH/PANI-CNTs Interfaces for Sensitive and Selective Methanol Electrochemical Sensors}, volume={168}, url={http://dx.doi.org/10.1149/1945-7111/ac2d44}, DOI={10.1149/1945-7111/ac2d44}, abstractNote={Methanol content in adulterated alcoholic beverages and gasoline recently has emerged as a common issue in many developing countries. Here we aimed to fabricate a novel sensitive and selective methanol sensor based on NiOOH/PANI-Gr and NiOOH/PANI-CNTs interfaces. The results revealed that both sensing interfaces exhibited noteworthy electrocatalytic performance, high reproducibility towards methanol oxidation with a wide linear range of 0.5–500 mM, and a low detection limit of 0.290 mM. The fabricated interfaces were also highly selective towards methanol oxidation without any interferent signal from other alcohols, indicating the auspicious methanol sensors for the field-tests in controlling adulterated products (alcohol beverages and gasoline).}, number={10}, journal={Journal of The Electrochemical Society}, publisher={The Electrochemical Society}, author={Ngan, Nguyen Thi Kim and Thom, Nguyen Thi and An, Nguyen Nhat Xuan and Le, Hai Viet and Nam, Pham Thi and Huynh, L.T.N and Viet, Pham Van and Trang, Nguyen Thi Thu and Hoang, Nguyen Thai and Tran, Dai Lam}, year={2021}, month={Oct}, pages={107509} }
 @article{nguyen_hai_nguyen_nam_nguyen_huynh_pham_nguyen_hoang_tran_2021, title={Efficient nickel or copper oxides decorated graphene–polyaniline interface for application in selective methanol sensing}, volume={11}, url={http://dx.doi.org/10.1039/d1ra04164a}, DOI={10.1039/d1ra04164a}, abstractNote={Graphene sheets decorated with nickel or copper oxides that were anchored on polyaniline (denoted as PANI-graphene/NiO and PANI-graphene/CuO) were prepared by a simple, easy to-control electrochemical method and applied as novel materials for sensitive and selective methanol sensing. The fabricated sensors exhibited good electrocatalytic activity, appropriate dynamic linear range (20-1300 mM), sensitivity (0.2-1.5 μA mM-1 cm-2) and excellent selectivity towards methanol. It should be highlighted from the selectivity tests that no significant interference was observed from ethanol and other alcohols. To our best knowledge, using inexpensive but efficient transition metals like Ni, Cu instead of Pt, Pd and their composites with PANI, graphene would be scientifically novel and practically feasible approach for sensor fabrication that could be potentially used to identify methanol adulteration in counterfeit alcoholic beverages.}, number={46}, journal={RSC Advances}, publisher={Royal Society of Chemistry (RSC)}, author={Nguyen, Nhat Xuan An and Hai, Le Viet and Nguyen, Thi Kim Ngan and Nam, Pham Thi and Nguyen, Thom and Huynh, Le Thanh Nguyen and Pham, Viet Van and Nguyen, Thi Thu Trang and Hoang, Nguyen Thai and Tran, Dai Lam}, year={2021}, pages={28573–28580} }