An Thi Minh Dao, Van Thuan Nguyen, Nguyễn Văn Huy, Lien T H Nguyen,
Tópico(s): Health and Well-being Studies
2018 - | Trends in Biomedical Research
Nguyen Thi Hanh, Doan Van Thuan, Nguyễn Mạnh Khải, Phạm Thị Thúy, Tran Thi My Hang, Vy H. T. Nguyen, Nguyen Van Noi, Dinh Trinh Tran, Thanh Dong Pham, Nguyễn Thị Thanh Trúc, Nguyen Le Minh Tri,
Herein, Co3O4 was coated on N,S co-doped TiO2 to synthesize Co3O4/N,S–TiO2 nanocomposites applying for an advanced degradation of Direct Blue 71 (DB 71) under visible irradiation. N and S were used to incorporate into TiO2 matrix to decrease its energy band gap (Ebg) while Co3O4 was used to coat on N,S–TiO2 to further enhance its electron-hole separation efficiency. Therefore, these synthesized Co3O4/N,S–TiO2 exhibited novel photocatalytic ability efficiently degrading DB 71. The optimal Co3O4 coating ...
Tópico(s): Advanced Nanomaterials in Catalysis
2020 - Elsevier BV | Ceramics International
Thi Viet Ha Luu, Minh Dai Luu, Đào Ngọc Nhiệm, Van Thuan Le, Hoài Thương Nguyễn, Van‐Dat Doan,
C/Ce-codoped ZnO nanoparticles immobilized onto multi-walled carbon nanotubes (C/Ce-ZnO@MWCNT) were successfully fabricated via the hydrothermal method for degradation of methylene blue (MB) under visible light irradiation. The prepared C/Ce-ZnO@MWCNT samples were characterized by XRD, XPS, FTIR, FE-SEM, EDX, BET, and diffuse reflectance spectroscopy. The obtained results indicated that the photocatalytic activity of all the MWCNTs-containing samples was higher than those of the bare ZnO and C/Ce- ...
Tópico(s): Gas Sensing Nanomaterials and Sensors
2020 - Taylor & Francis | Journal of Dispersion Science and Technology
Dinh Xuan Khoa, Le Van Doai, Le Nguyen Mai Anh, Trung Le Canh, Phan Van Thuan, Nguyễn Tiến Dũng, Nguyen Huy Bang,
We propose an optical bistability (OB) model consisting of a five-level cascade electromagnetically induced transparency (EIT) medium placed in a unidirectional ring cavity. An input-output intensity relationship for a weak probe light field is derived as a function of parameters of a strong coupling light and cooperation C. The OB behaviors of the system are investigated with variation of the parameters. It has been shown that the OB behaviors occur simultaneously in three EIT windows. Furthermore, ...
Tópico(s): Random lasers and scattering media
2016 - Optica Publishing Group | Journal of the Optical Society of America B
Van‐Dat Doan, Bao-An Huynh, Thanh‐Danh Nguyen, Xuan-Thang Cao, Van Cuong Nguyen, Thi Lan-Huong Nguyen, Hoài Thương Nguyễn, Van Thuan Le,
In this study, biogenic silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) were synthesized by a green approach using an aqueous extract from Codonopsis pilosula (CP) roots as a reducing and stabilizing agent. The formation of CP-AgNPs and CP-AuNPs was confirmed and optimized by UV-Vis spectroscopy. The CP-AgNPs and CP-AuNPs obtained under optimum conditions of metal ion concentration, reaction temperature, and reaction time were characterized by high-resolution transition electron microscopy ( ...
Tópico(s): Laser-Ablation Synthesis of Nanoparticles
2020 - Hindawi Publishing Corporation | Journal of Nanomaterials
Quach Thi Thanh Van, Le Thi Vien, Trần Thị Hồng Hạnh, Phan Thị Thanh Hương, Nguyen The Cuong, Nguyễn Phương Thảo, Nguyễn Huy Thuần, Nguyen Hai Dang, Nguyễn Văn Thành, Nguyễn Xuân Cường, Nguyễn Hoài Nam, Phan Văn Kiệm, Châu Văn Minh,
Using various chromatographic separations, three new acylated flavonoid glycosides, namely barringosides G-I (1-3), were isolated from the water-soluble extract of Barringtonia racemosa branches and leaves. The structure elucidation was performed by extensive analysis of the 1D and 2D NMR and HR-QTOF-MS data. Of the isolated compounds, barringoside I (3) showed moderate inhibitory effects on LPS-induced NO production in RAW264.7 cells with an IC50 of 52.48 ± 1.04 µM.
Tópico(s): Phytochemistry and Bioactive Compounds
2019 - Taylor & Francis | Natural Product Research
Hoang Nhan Ho, Hoang Hao Le, Thien Giap Le, Thi Hong Anh Duong, Viet Quynh Tram Ngo, Cong Thuan Dang, Văn Minh Nguyễn, Tuan Hiep Tran, Chien Ngoc Nguyen,
Local delivery of drug is a promising strategy to manage periodontitis characterized by chronic inflammation of the soft tissue surrounding the teeth. An optimized system should prolong the drug retention time and exhibit controlled drug permeation through the buccal mucosal layer. This study was aimed to develop hydroxyethyl cellulose (HEC)-based gel containing metronidazole (MTZ) loaded in solid lipid nanoparticles (SLNs), and to enhance the antimicrobial activity of MTZ. SLNs were prepared using ...
Tópico(s): Advancements in Transdermal Drug Delivery
2021 - Elsevier BV | International Journal of Biological Macromolecules
Chantal Morel, Ngo Duc Thang, Annette Erhart, Nguyễn Xuân Xã, Koen Peeters Grietens, Le Xuan Hung, Le Khan Thuan, Pham Van Ky, Nguyễn Mạnh Hùng, Marc Coosemans, Umberto D’Alessandro, Anne Mills,
Background Despite much success in reducing the burden of malaria in Vietnam, pockets of malaria persist and eliminating them remains an important development goal. In central Vietnam, insecticide-treated hammocks have recently been introduced to help counter the disease in the highly forested, mountainous areas, where other measures have so far been unsuccessful. This study assesses the cost-effectiveness of using long-lasting insecticide-treated hammocks in this area. Methods and Findings This ...
Tópico(s): Vibrio bacteria research studies
2013 - Public Library of Science | PLoS ONE
Nguyễn Thị Phương Lệ, Nguyen Thi Dieu Cam, Doan Van Thuan, Thanh Tam Truong, Nguyễn Thị Thanh Trúc, Cao Van Hoang, Thi Thu Phuong Tran, Thanh-Dong Pham, Mai Hùng Thanh Tùng, Nguyễn Thị Minh Thư, Nguyen Minh Phuong, Van Noi Nguyen,
We successfully used V as dopant to enhance activity of TaON for visible light photocatalytic reduction of CO2 into valuable fuels. We investigated that the used V dopants existed in the TaON lattice and replaced several Ta elements in the lattice leading to decrease in the conduction band minimum and increase in the valence band maximum of the prepared VTaON. Hence, the band gap energy of the prepared VTaON was lower than that of prepared TaON or the prepared VTaON material could absorb significant ...
Tópico(s): CO2 Reduction Techniques and Catalysts
2018 - Elsevier BV | Applied Surface Science
Nguyen To Anh, Le Nguyen Truc Nhu, Nguyen Thi Thu Hong, Tran My Phuc, Pham Thi Thanh Tam, Dang Thao Huong, Anh Tuấn Trần, Xutao Deng, Ho Dang Trung Nghia, Tran Thua Nguyen, Nguyễn Văn Hùng, Nguyen Dac Thuan, Pham Thi Hong Phuong, Nguyễn Văn Vĩnh Châu, Stephen Baker, Eric Delwart, Guy Thwaites, Le Van Tan,
Abstract Central nervous system (CNS) infection is a serious neurologic condition, although the etiology remains unknown in >50% of patients. We used metagenomic next-generation sequencing to detect viruses in 204 cerebrospinal fluid (CSF) samples from patients with acute CNS infection who were enrolled from Vietnam hospitals during 2012–2016. We detected 8 viral species in 107/204 (52.4%) of CSF samples. After virus-specific PCR confirmation, the detection rate was lowered to 30/204 (14.7%). Enteroviruses ...
Tópico(s): Respiratory viral infections research
2020 - Centers for Disease Control and Prevention | Emerging infectious diseases
Nguyễn Thị, Nguyễn Xuân Cường, Nguyễn Phương Thảo, Nguyễn Hoài Nam, Nguyên Hûu Khôi, Châu Văn Minh, Yvan Vander Heyden, Ngo Thi Thuan, Nguyễn Văn Tuyên, Joëlle Quetin‐Leclercq, Phan Văn Kiệm,
A new lignan dimer, bilariciresinol (1), was isolated from the leaves of Mallotus philippensis, along with platanoside (2), isovitexin (3), dihydromyricetin (4), bergenin (5), 4-O-galloylbergenin (6), and pachysandiol A (7). Their structures were elucidated by spectroscopic experiments including 1D and 2D NMR and FTICR-MS.
Tópico(s): Plant-derived Lignans Synthesis and Bioactivity
2010 - SAGE Publishing | Natural Product Communications
Nguyen Hung Anh, Wolfgang Bokelmann, Ngo Thi Thuan, Do Thi Nga, Nguyễn Văn Minh,
Contract farming is considered as institutional arrangements that manage the coordination of production and distribution between smallholder farmers and agro-industrial firms. Under the market reforms and industrialization process, contract farming links smallholder farmers to a better market through effective farming management and high-quality products. Despite the many benefits attributed to participation, the existing literature addresses the main issues that result in the opposing attitudes ...
Tópico(s): Agricultural Innovations and Practices
2019 - Multidisciplinary Digital Publishing Institute | Sustainability
Nguyen Van Song, Tran Thi Hoang, Tran Duc Thuan, Dinh Van Tien, Nguyễn Thị Minh Phương, Thai Van Ha, Nguyen Dang Que, Tran Ba Uan,
Distinguishing the significance of business environments for technical small and medium-sized enterprises (SMEs), this study examines the connection between business environments, GDP growth, and SMEs’ financing choices in Vietnam. The study considered the agency theory as a theoretical base to explain how information asymmetry between SMEs and lenders influences SMEs’ financing choices and encompasses the effects on business environment and GDP growth of Vietnam. For this binary logistic regression, ...
Tópico(s): Fiscal Policy and Economic Growth
2022 - Springer Science+Business Media | Environmental Science and Pollution Research
Nguyễn Văn Nam, Peter J. de Vries, L.V. Toi, Nico Nagelkerke,
Summary Objective The National Malaria Control Program (NMCP) in Vietnam is based on application of insecticide‐treated bed nets (ITNs), spraying of insecticides and early microscopic diagnosis of malaria and treatment (EDTM) with artemisinin drugs. This study explores the implementation of the NMCP at provincial level and its impact on malaria incidence (mi) and prevalence in Binh Thuan in southern Vietnam. Methods Data on implementation of EDTM, distribution of ITNs, annual mi and Plasmodium index ( ...
Tópico(s): Parasites and Host Interactions
2005 - Wiley | Tropical Medicine & International Health
Karl M. Rich, Kanar Dizyee, Tan Thanh Nguyen, Duong Nam Ha, Van-Thuan-Em Pham, Nguyễn Đình Tiến, Fred Unger, Ma. Lucila Lapar,
Economic impact assessments are increasingly important in the context of animal health and food safety, although much of the existing literature does not address the broader systems context in which disease transmission takes place. In this paper, we discuss the role of system dynamics modeling in addressing the value chain impacts associated with animal health and food safety issues. System dynamics methods hold promise as a means of capturing the complex feedbacks that exist between the biology, ...
Tópico(s): Global trade, sustainability, and social impact
2017 - Elsevier BV | Food Microbiology
Nguyễn Hữu Toàn Phần, Nguyễn Thị Diệu Thuần, Nguyễn Thị Thu Hiền, Phạm Văn Huyến, Duyen H. H. Nguyen, Trần Thị Hồng Hạnh, Nguyễn Xuân Cường, Trần Hồng Quang, Nguyen Hoai Nam, Châu Văn Minh,
Chemical investigation of the roots of Codonopsis javanica resulted in isolation of 12 compounds, including one new polyacetylene, codojavanyol (1), one new phenolic glycoside, codobenzyloside (7), and 10 known compounds, (2E,8E)-9-(tetrahydro-2H-pyran-2-yl)nona-2,8-diene-4,6-diyl-1-ol (2), lobetyol (3), lobetyolin (4), lobetyolinin (5), cordifolioidyne B (6), benzyl-α-L-arabinopyranosyl (1-6)-β-D-glucopyranoside (8), (Z)-8-β-D-glucopyranosyloxycinnamic acid (9), syringin (10), syringaresinol (11), and tryptophan ( ...
Tópico(s): Natural product bioactivities and synthesis
2020 - Taylor & Francis | Natural Product Research
Nguyen Trong Dan, Hoang Duc Quang, Vuong Van Truong, Đỗ Hữu Nghị, Nguyễn Mạnh Cường, To Dao Cuong, Trần Quốc Toàn, Long Giang Bạch, Nguyen Huu Thuan Anh, Nguyễn Thị, Ngo Thi Lan, Luu Van Chinh, Phạm Minh Quân,
Abstract The addition of chalcone and amine components into indirubin-3′-oxime resulted in 15 new derivatives with high yields. Structures of new derivatives were also elucidated through 1D, 2D-NMR and HR-MS(ESI) spectra and X-ray crystallography. All designed compounds were screened for cytotoxic activity against four human cancer cell lines (HepG2, LU-1, SW480 and HL-60) and one human normal kidney cell line (HEK-293). Compound 6f exhibited the most marked cytotoxicity meanwhile cytotoxicity of ...
Tópico(s): Cancer therapeutics and mechanisms
2020 - Nature Portfolio | Scientific Reports
Duyen Thi Cam Nguyen, Dai‐Viet N. Vo, Thuong Thi Nguyen, Thuy Thi Thanh Nguyen, Nguyễn Thị Tố Loan, Thuan Van Tran,
This study investigated the fabrication of zeolitic–imidazolate framework (ZIF-8) and ZIF-8-derived porous carbon and their application in the adsorptive removal of tetracycline from water. The materials were analysed by X-ray photoelectron spectroscopy, scanning electron microphotography, and the measurement of pH point of zero charge. The results indicated the presence of N-doped carbon network and functional groups on ZIF-8-derived porous carbon. Response surface methodology was used for statistical ...
Tópico(s): Covalent Organic Framework Applications
2021 - Elsevier BV | Surfaces and Interfaces
Van‐Duong Dao, Nguyễn Thị Phương Lệ, Doan Van Thuan, Thanh-Dong Pham, Dinh Trinh Tran, Nguyen Minh Phuong, Phương Thảo, Nguyen Minh Viet, Nguyen Thi Dieu Cam, Nguyễn Mạnh Tường, Nhat Minh Dang, Ho‐Suk Choi,
In the study, we used two conducting polymers, polyaniline (PANI) and polypyrrole (PPy), to sensitize Ta3N5, thereby enhancing its photocatalytic activity, and then applied this novel photocatalyst to overall water splitting to produce hydrogen and oxygen even under visible light irradiation. The two polymers increased the charge transfer efficiency, prevented the recombination of the generated electrons and holes of the Ta3N5 photocatalyst, and thereby enhanced its electron-hole separation efficiency ...
Tópico(s): Electrocatalysts for Energy Conversion
2018 - Elsevier BV | Journal of Alloys and Compounds
Thi Long, Thi Mong Thu Ho, Van‐Dat Doan, Van Thuan Le, Hoài Thương Nguyễn,
A metal-organic framework of iron-doped copper 1,4-benzenedicarboxylate was synthesized and, for the first time, utilized as a heterogeneous photo-Fenton catalyst for degradation of methylene blue dye in aqueous solution under visible light irradiation. The synthesized materials were characterized by scanning electron microscopy, Fourier-transform infrared spectroscopy, X-ray diffraction and energy-dispersive X-ray spectroscopy. The influence factors, kinetics, and stability of the synthesized catalysts ...
Tópico(s): TiO2 Photocatalysis and Solar Cells
2019 - Taylor & Francis | Toxicological & Environmental Chemistry Reviews
Van‐Dat Doan, Thi Long, Thi Mong Thu Ho, Van Thuan Le, Hoài Thương Nguyễn,
The study aims to use waste plastic PET bottles to recover terephthalic acid for preparing copper-1,4-benzenedicarboxylate, which was then utilized as an adsorbent for removal of methylene blue (MB) from aqueous solutions after carefully characterizing by XRD, FTIR, TGA, SEM, and EDX. The optimum conditions were established as pH = 6, 25°C, adsorbent dose of 1 g L−1, contact time of 20 min, and agitation speed of 150 rpm. The adsorption process was spontaneous, exothermic, fitting well to Langmuir ...
Tópico(s): Nanomaterials for catalytic reactions
2019 - Taylor & Francis | Separation Science and Technology
Thinh Van Pham, Thuan Van Tran, Trinh Duy Nguyen, Nguyễn Thị Thắm, Phan Thanh Tri Quang, Dao Thi To Uyen, Le Thi Hong Nhan, Dai‐Viet N. Vo, Trung Thanh Nguyen, Long Giang Bạch,
Herein, we reported a facile method to fabricate the exfoliated graphite (EG) by Hummer's method via a two-step procedure including intercalation with a mixture of oxidants (H2O2 and H2SO4), and exfoliation using a microwave system. For the adsorption experiments, effect of contact time (0–210 min), initial concentration (20–60 mg/L), pH (4–10), and EG dosage (0.3–0.7 g/L) were systematically studied. Moreover, the adsorption kinetics (pseudo-first-order, pseudo-second-order, Elovich, and Bangham) and ...
Tópico(s): Graphene research and applications
2019 - Elsevier BV | Materials Today Proceedings
Duyen Thi Cam Nguyen, Duc‐Thang Vo, Thuy Thi Thanh Nguyen, Thuy Thi Thanh Nguyen, Nguyễn Thị Tố Loan, Thuan Van Tran,
Tópico(s): Metal-Organic Frameworks: Synthesis and Applications
2022 - Springer Science+Business Media | International Journal of Environmental Science and Technology
Thi Thanh Thuy Tran, Van‐Dat Doan, T. T. T. Ho, Van Thuan Le, Hoài Thương Nguyễn,
The present work is devoted to the synthesis of a novel photocatalyst of TiO2/Ag3PO4/bentonite composite and its utilization for degradation of methylene blue (MB) in aqueous solution under visible light irradiation. The synthesized catalyst was characterized by X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, Brunauer-Emmett-Teller method and energy-dispersive X-ray techniques. Degradation conditions were optimized as pH of 7, catalyst loading ...
Tópico(s): Advanced Nanomaterials in Catalysis
2018 - Mary Ann Liebert, Inc. | Environmental Engineering Science
Richard R. Love, Nguyen Ba Duc, D. Craig Allred, Nguyen Cong Binh, Nguyễn Văn Định, Nguyen Ngoc Kha, Trần Văn Thuân, Syed K. Mohsin, Le Dinh Roanh, Hoang Xuan Khang, Trinh Luong Tran, Tran Tu Quy, Nguyễn Văn Thụy, Pham Nhu Thé, Ton That Cau, Nguyễn Đình Tùng, Dang Thanh Huong, Le Minh Quang, Nguyễn Ngọc Hiền, Le Huynh Hoai Thuong, Tian-zhen Shen, Ye Xin, Qian Zhang, Thomas C. Havighurst, Yonghong Yang, Bruce E. Hillner, David L. DeMets,
PURPOSE: In 1992, the Early Breast Cancer Trialists’ Collaborative Group reported that a meta-analysis of six randomized trials in European and North American women begun from 1948 to 1972 demonstrated disease-free and overall survival benefit from adjuvant ovarian ablation. Approximately 350,000 new cases of breast cancer are diagnosed annually in premenopausal Asian women who have lower levels of estrogen than western women. PATIENTS AND METHODS: From 1993 to 1999, we recruited 709 premenopausal ...
Tópico(s): HER2/EGFR in Cancer Research
2002 - Lippincott Williams & Wilkins | Journal of Clinical Oncology
Ngo Duc Thang, Annette Erhart, Le Xuan Hung, Le Khanh Thuan, Nguyễn Xuân Xã, Nguyễn Ngọc Thành, Pham Van Ky, Marc Coosemans, Niko Speybroeck, Umberto D’Alessandro,
Despite a successful control programme, malaria has not completely disappeared in Vietnam; it remains endemic in remote areas of central Vietnam, where standard control activities seem to be less effective. The evolution of malaria prevalence and incidence over two and half years in a rural area of central Vietnam, after the introduction of community-based monitoring of malaria cases, is presented.After a complete census, six cross-sectional surveys and passive detection of malaria cases (by village ...
Tópico(s): Vibrio bacteria research studies
2009 - BioMed Central | Malaria Journal
Nguyễn Huy Thuần, Vinay Bharadwaj Tatipamula, Nguyen Xuan Canh, Nguyễn Văn Giảng,
Micro-organisms have often been used to produce bioactive compounds as antibiotics, antifungals, and anti-tumors, etc. due to their easy and applicable culture, genetic manipulation, and extraction, etc. Mainly, microbial mono-cultures have been applied to produce value-added compounds and gotten numerous valuable results. However, mono-culture also has several complicated problems, such as metabolic burdens affecting the growth and development of the host, leading to a decrease in titer of the ...
Tópico(s): Transgenic Plants and Applications
2022 - Springer Science+Business Media | 3 Biotech
Ngan Thi Kim HO, Thuy Van Thi NGUYEN, Thuận Văn Nguyễn, Hong‐Thuy Bui,
Parthenogenesis is an activation process of oocytes that occur without the participation of sperm. Evidence suggests that normal development of embryos requires proper expression of several imprinted genes inherited from both the paternal and maternal genomes. Compared to gene expression, histone modifications and chromatin remodeling are not well-documented. In this research, by using immunofluorescence staining for several developmental-associated histone modifications, we investigated whether ...
Tópico(s): Genetic Syndromes and Imprinting
2018 - Japanese Society of Animal Reproduction | Journal of Reproduction and Development
Hung Quoc Le, Nguyen Thi Thuy Ngan, Tho Ngoc Anh Vo, Thuận Văn Nguyễn, Khanh Thi Ngoc, Thanh Thi Chi Ho, Sang Ngoc Nguyen, Xuan Thi Phan, Duy Ly Minh Nguyen, Dung Ngoc Kieu, Hiep Duc Ngo, David A. Warrell,
King Cobra (Ophiophagus hannah) bite is well-known for its potentially fatal neurotoxicity. However, fatalities still occur, despite specific antivenom and respiratory support. Cardiovascular disturbances, which have attracted little attention in published reports of O. hannah envenoming, could contribute to fatality. We present two cases of confirmed O. hannah envenoming in Southern Vietnam in which there were cardiac abnormalities including arrhythmias and electrocardiographic changes, as well ...
Tópico(s): Ion channel regulation and function
2021 - Elsevier BV | Toxicon
Nguyen Tan Dung, Ngo Huu Thuan, Truong Van Dung, Le Van Nho, Nguyễn Minh Trí, Vu Pham Thao Vy, Le Ngoc Hoang, Nguyen Thuan Phat, Dang Anh Chuong, Luong Huu Dang,
The purpose of this study was to develop a semi-supervised segmentation and classification deep learning model for the diagnosis of anterior cruciate ligament (ACL) tears on MRI based on a semi-supervised framework, double-linear layers U-Net (DCLU-Net).A total of 297 participants who underwent of total of 303 MRI examination of the knee with fat-saturated proton density (PD) fast spin-echo (FSE) sequence in the sagittal plane were included. There were 214 men and 83 women, with a mean age of 37.46 ± ...
Tópico(s): Advanced X-ray and CT Imaging
2022 - Elsevier BV | Diagnostic and Interventional Imaging