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Isolation of cellulose nanocrystals from rice husk using the formic/ peroxyformic acid process
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 4 Số 2 - Trang 430-440 - 2020
Nhan Chi Ha Thuc, Nhi Van Nguyen, Van Thi Thanh Tran, An Nang Vu, Hieu Van Le
Cellulose nanocrystals (CNCs) is one of the interesting materials attracting many researchers from the decades, especially when they are extracted from natural biomass resources. The  aim  of  this  study  was  to  explore  the  utilization  of  rice husk  residues  as  source  for  the  production  of CNCs. ...... hiện toàn bộ
#Vỏ trấu #quá trình axit formic/ axit peroxyformic #nano tinh thể cellulose #phế phẩm nông nghiệp
Investigation of hexamethylenediamine elimination in the synthesis of polyhexamethylene guanidine
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 1 Số T5 - Trang 78-84 - 2018
Tri Nguyen, Loc Cam Luu, Anh Nguyen Quynh Phan, Anh Cam Ha
Polyhexamethylene guanidine hydorocloride (PHMG-HCl), a positively charged polymer, is the outstanding antibacterial with wide spectrum of antibacterial and antifungal, capable killing bacteria at very low concentration, and extremely low toxic (level three in the tract and level four through the skin). However, the residual of medium toxic reactant hexamethylenediamine in the synthesized PHMG-HCl...... hiện toàn bộ
Magnetic recoverable CuFe2O4/cellulose nanocrystal composite as an efficient catalyst for 4-nitrophenol reduction
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 5 Số 4 - Trang 1593-1604 - 2021
Bao Tran Huynh, Hieu Van Le, An Nang Vu, Ngoc Han Nguyen, Ngoc Hoa Thi Le
CuFe2O4/cellulose nanocrystal (CuFe2O4/CNC) composite featured high magnetic activity was prepared by a facile and one-pot solvothermal method. Based on the solvothermal condition, nanometer-sized magnetic CuFe2O4 ferrite particles (CuFe2O4 NPs) were directly synthesized and CNC was coated on the surfaces of CuFe2O4 NPs. The composition, structure, morphology, and magnetic property of prepared CuF...... hiện toàn bộ
Isolation and screening of Pseudomonas isolates enhance salinity tolerance of peanut (Arachis hypogaea L.)
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 4 Số 1 - Trang 347-356 - 2020
Tieng Van Nhut Pham, Thanh Nguyen Chu, Le Van Bui, Minh Thi Thanh Hoang
The application of plant growth-promoting rhizobacteria (PGPR) is one of the most promising alternative approaches to improve plant growth under salt stress. Among PGPR, Pseudomonas is a bacterial genus that possesses a variety of mechanisms for plant-growth-promoting and induction of biotic as well as abiotic stress tolerance. In this study, we screened three potential strains and tested the grow...... hiện toàn bộ
#peanut #PGPR #Pseudomonas #salt stress tolerance
Seismic interpretation and data management by using opendtect and qgis: case study in the North Sea, Netherlands
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 6 Số 1 - Trang 1943-1955 - 2021
Thuận Văn Nguyễn, Cường Văn Anh Lê, Hậu Công Võ
Seismic exploration method is one of the most important geophysical methods widely applied in the survey of deep geological structures. The seismic wave diagram is related to the acoustic impedance characteristics of the rock environment to help reflect the images of geological objects below. Effective management of the resulting data before and after seismic interpretation will help scientists ha...... hiện toàn bộ
Cost and benefit analysis of maintaining Delonix regia trees on Nguyễn Văn Linh street in Ho Chi Minh City
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 1 Số T4 - Trang 215-221 - 2017
Kha Thi Ngoc Phan, Thao Thi Phuong Nguyen
Street trees play the important roles for the natural environment, and bring a lot of benefits to people in urban areas, especially at Ho Chi Minh City - an area with the fastest urbanisation and industrializationin Vietnam. However, the area of the street trees is now decreasing considerably due to the urban planning, removal and replacement. A study on cost and benefit analysis of maintaining st...... hiện toàn bộ
The addition of quinonoid zwitterion into a hybrid organic–inorganic halide lead perovskite thin film could enhance the perovskite solar cells’ performance
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 6 Số 2 - Trang 2004-2014 - 2022
Tung Thanh Ngo, Anh Duc Le, Tan Minh Nguyen, Le Thi Nguyen, Phuong Tuyet Nguyen
Solar cells based on hybrid organic – inorganic halide lead perovskite are potentially promising to be used in the near future. The quality of the perovskite thin film played an important role in the photovoltaic performance of perovskite solar cells. One strategy to improve the quality of the film was to utilize an additive into the precursor solution during the perovskite formation process. This...... hiện toàn bộ
#Perovskite solar cells #hybrid organic–inorganic perovskite #amino quinonoid zwitte-rion #surface material
Cloning, expression, and purification of the M cell targeting peptide CPE16 derived from C-terminus of Clostridium perfringens enterotoxin and the binding evaluation with Claudin-r4
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 3 Số 1 - Trang 38-45 - 2019
Vo Thi Thanh Ha, Mai Quoc Gia, Huynh Kien Quang, Tran Van Hieu, Nguyen Hoang An
Developing the oral vaccine that stimulates the mucosal immune system in order to prevent the gastro-intestinal infection is an indispensable demand nowadays. Targeting the M cells, which is a sampling antigen cell, is a highly efficient solution to prevent the dispersion of antigens. Many researches demonstrate that C-terminus Clostridium perfringens enterotoxin bounds to the Claudin- 4 receptor ...... hiện toàn bộ
#C-terminus Clostridium perfringens enterotoxin #CPE16 #M cell #oral vaccine
Antioxidant, anti-bacterial activity of Perilla frutescens ethanol extract and induction of hairy roots by Agrobacterium rhizogenes
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 5 Số 1 - Trang 975-983 - 2020
LE THI MONG VUONG, QUACH NGO DIEM PHUONG, TRA DONG PHUONG
Perilla frutescens, a plant of the Lamiaceae, is commonly used for traditional medicine to treat diseases (cold, headache, cough, tympanites, poisoning, ...) because it contains many secondary compounds with bioactivities. Roots, stems and leaves of P. frutescens have been extracted with ethanol. These extracts have also been investigated antioxidant by DPPH method and antibacterial by agar-well-d...... hiện toàn bộ
#Perilla frutescens #antioxidant #antibacterial #secondary compound #hairy roots
Synthesis of composite TiO2/CNTs via sol-gel route as electrode materials for supercapacitors
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 6 Số 4 - Trang 2472-2480 - 2022
Thi Thom Nguyen, Thai Hoang NGUYEN, Viet Hai Le, Quoc Khuong Vo, Anh Thu Nguyen, Thi Nam Pham, Thi Thu Trang Nguyen, Hoang Anh Nguyen, Trong Lu Le, Nguyen HUYNH, Dai Lam Tran
Supercapacitor is considered as a promising energy storage devices because supercapacitors can provide higher power densities than lithium-ion batteries. Besides traditional carbon materials, the development of metal oxide composite materials with carbon is considered a new direction to improve the weaknesses of current supercapacitors. The metal oxide composite nanomaterial not only offers high c...... hiện toàn bộ
#composite TiO2/CNTs; siêu tụ điện hoá; giả điện dung; phổ tổng trở điện hoá
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