Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh

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The effect of the blue light on the pericarp cell growth and lycopene content of cherry tomato (Solanum lycopersicum var. cerasiforme) fruit
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 4 Số 4 - Trang 827-837 - 2020
Kiet Thuong Do, Sanh Du Nguyen, Dien Thi Kieu Pham
The cherry tomato fruit size depends on the growth of the pericarp which is parenchymal cells. The blue light stimulates the expansion of cotyledon cells, hypocotyl cells and leaf cells. In this study, the cherry tomato fruit was used as a material to investigate the effects of the blue light on the pericarp cells growth in fruit growth stage and lycopene accumulation in fruit growth and ripening ...... hiện toàn bộ
#ánh sáng xanh lơ #cà chua bi #lycopene #tăng rộng tế bào #tấm lọc ánh sáng
Purification of p24 protein expressed in Bacillus subtilis and evaluation of its immunogenicity in mice
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 1 Số T1 - Trang 69-79 - 2017
Trang Thi Phuong Phan, Tuom Thi Tinh Truong, Hoang Duc Nguyen
p24 protein is a component of the HIV particle capsid. It plays an essential role in HIV to infect into the host cell and in the cycle life of virus. Therefore, this protein can be used in the orientative study “to create and produce HIV’s vaccine”. This study created the new Bacillus subtilis strain which expressed p24 protein. B. subtilis a safety and non-toxic bacteria strain for humans and ani...... hiện toàn bộ
Decolorization of textile dyes by TiO2 -based photocatalyst using polyol as electron donor
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 2 Số 5 - Trang 83-89 - 2019
Xuan Thi Hong Cao, Van Thi Bich Pham, Thuy Thi Thanh Nguyen, Hao Minh Hoang
Decolorization of textile dyes including 2,6-dichlorophenolindophenol (DCIP), congo red (CR) and methyl orange (MO) by using TiO2-based photocatalyst in the presence of polyols such as glycerol and ethylene glycol was investigated. Polyols were used as sacrificial electron donors (SEDs). The results showed that the polyols improved the rate and yield of a light-induced decolorization of dyes in co...... hiện toàn bộ
Fabrication of ternary composite based on imidazole, nafion, and cellulose nanocrystals for fuel cell application
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 6 Số 2 - Trang 1991-2003 - 2022
Long Hoang Nguyen, Hieu Van Le, Anh Mai Tran, Nam Phong Pham Le, Hoang Van Nguyen, An Nang Vu
In this study, we report a facile solution method to prepare a three-component composite membrane including imidazole, Nafion® 117, and cellulose nanocrystals (NCI). The structure and properties of NCI membrane were characterized by Fourier -Transform Infrared Spectroscopy (FT-IR), X-Ray Diffraction (XRD), Scanning electron microscopy (SEM), Energy Dispersive X-Ray Analysis (EDX), Thermogravimetri...... hiện toàn bộ
Phylogenetic relationship of indigenous freshwater fishes in the Sai Gon - Dong Nai river and adjacent drainage basins
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 6 Số 1 - Trang 1915-1932 - 2021
Hung Manh Pham, Hoang Duc Huy, Ngan Trong Tran
Investing in the biodiversity conservation along river catchments is a cost-effective nature-based solution to ensure the availability and sustainable management of water and the richness of biodiversity for all, with many co-benefits for the other sustainable development goals. The need for further exploration and conservation assessments of inland freshwater fish fauna coincides with expanding t...... hiện toàn bộ
#Cá bản địa #sự đặc hữu #phân bố địa lý #Sài Gòn – Đồng Nai #vùng sinh thái nước ngọt Châu thổ Mê Kông
Using wavelet transform for features extraction and machine learning algorithms to classify the facial expression by eeg signals
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 6 Số 2 - Trang 2116-2130 - 2022
Tiên Hoàng Thủy Võ, Tuấn Văn Huỳnh, Quỳnh Thị Như Nguyễn, Phước Thanh Nguyễn
The goal was to evaluate the performance of the state-of-the-art algorithms. A secondary goal was to try to improve upon the result of a method that was used in a study similar to the one used in this work. This paper presented the building of multi-state datasets relating to eye behaviors and facial expressions. Signals were recorded and stored by the connection of a channel-less mobile device. Z...... hiện toàn bộ
Nymphoides aurantiaca (Dalzell) Kuntze, a new record of family Menyanthaceae for the flora of Vietnam
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 1 Số T2 - Trang 58-63 - 2017
Triet Tran, Nga Phi Nguyen, Thuy Thi Thu Nguyen
The newly recorded species, Nymphoides aurantiaca (Dalzell) Kuntze belonging to family Menyanthaceae, was discovered at some wetland areas in Lò Gò–Xa Mát National Park (Tân Biên, Tây Ninh). This species was found for the first time in 2003 during a research on wetland biodiversity and conservation funded by Tây Ninh Province’s Department of Science and Technology. Special morphological characteri...... hiện toàn bộ
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
Influence of plant growth regulators on the rapid propagation buds of Dendrobium officinale Kimura et Migo
Tạp chí Khoa học Tự nhiên Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 1 Số T2 - Trang 29-38 - 2017
Diem Thi Le, Mai Thi Bach Vo
Dendrobium officinale Kimura et Migo has been known for a long time as a precious orchid, which is used for medicine and functional foods that are widely commercialized in the world. The nodal explants could be obtained in high efficiency, good quality and uniform seedlings on multiplication vegetative in vitro. They can be propagated in large quantities in a short time. The studied results showed...... hiện toàn bộ
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
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