285 results match your criteria: "Vinh University[Affiliation]"
Phys Chem Chem Phys
August 2024
Molecule and Materials Modeling Laboratory and Department of Chemistry, Can Tho University, Can Tho, Vietnam.
The smallest triple ring tube-like gold clusters M@Au with M = Mo, W and = 1, 0, -1 are reported for the first time. Incorporation of an M dimer results in a remarkable modification of both atomic and electronic structures of the gold host. While the bare Au cluster exhibits a 3D cage shape, the doubly doped clusters M@Au in all charge states are found to prefer a tubular form composed of three five-membered Au rings in an anti-prism arrangement and stabilized by an M unit placed inside the tube-like Au gold framework.
View Article and Find Full Text PDFChem Biodivers
November 2024
Aromatic Plant Research Center, 230 N 1200 E, Suite 100, 84043, Lehi, UT, USA.
In this study, essential oils and waste hydrosols of leaves of Ocimum tenuiflorum in four different geographical locations were extracted by hydrodistillation method and using gas chromatography/mass spectrometry (GC/MS) for chemical composition analysis. All four essential oil samples contained the main components (E)-β-caryophyllene (27.8-49.
View Article and Find Full Text PDFMaterials (Basel)
June 2024
Faculty of Mechanical Engineering, Thai Nguyen University of Technology (TNUT), Thai Nguyen 250000, Vietnam.
Implementing the ultrasonic vibration-assisted incremental sheet-forming (UISF) process has been proven to significantly reduce the forming force, improve the surface quality, and enhance the accuracy of the sheet-forming process. However, such effectiveness has primarily focused on easily deformable materials (such as AA1050 and AA1060 aluminum alloys) and small step-down sizes (from 0.3 mm to 0.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
July 2024
Dien Bien Technical Economic College, Dien Bien, Vietnam.
Environ Sci Pollut Res Int
July 2024
Vinh University (VU), Vinh City, Vietnam.
Anal Methods
July 2024
BioNano Applications Research Center, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Republic of Korea.
Phys Chem Chem Phys
July 2024
Faculty of Chemistry and Center for Computational Science, Hanoi National University of Education, Cau Giay, Hanoi, Vietnam.
Manganese oxides (MnO) have been widely applied in various chemical industrial processes owing to their long lifetime, low cost and high abundance. They have been used as co-reactants for the elimination of volatile organic compounds (VOCs); however, their oxidation mechanism is not clearly established. In this theoretical study, interaction capacities between benzene (CH) and MnO clusters, which were modeled with MnO and MnO molecules, were investigated by quantum chemical computations using density functional theory (DFT) with the PBE-D3 functional.
View Article and Find Full Text PDFSaudi J Biol Sci
August 2024
Department of Animal Science and Veterinary Medicine, School of Agriculture and Aquaculture, Tra Vinh University, Tra Vinh Province, Viet Nam.
Sprouted rough rice (SR) is not commly used for poultry diets but it could be a potential replacement ingredient to improve nutritional value of feed. This study aimed to evaluate the growth performance, carcass quality, blood lipids, hepatic enzymes, and fatty acid profiles of broiler meat when corn was replaced with sprouted rough rice in the feed. A completely randomized design was used with four groups and six replicate groups with 10 birds per replicate.
View Article and Find Full Text PDFRSC Adv
June 2024
Faculty of Chemistry, Hanoi National University of Education 136 Xuan Thuy, Cau Giay Hanoi Vietnam
Graphitic carbon nitride supported silver nanoparticles (AgNPs/g-CN) with 1%, 3%, and 5% AgNPs were successfully synthesized by an "" method with ultrasound of a mixture of AgNP solution and g-CN. The AgNP solution was prepared by chemical reduction with trisodium citrate, and g-CN was synthesized from the urea precursor. The supported nanoparticles were characterized by X-ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), nitrogen adsorption-desorption (BET), Fourier transformation infrared (FTIR) and Raman spectroscopy, ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS), photoluminescence spectroscopy (PL), electron paramagnetic resonance (EPR) and electrochemical impedance spectroscopy (EIS) Nyquist plots.
View Article and Find Full Text PDFChem Biodivers
September 2024
Department of Chemistry, Vinh University, 182 Le Duan, Ben Thuy, Vinh City, Nghe An, 461010, Vietnam.
Eight furostanol glycosides including five undescribed compounds, named tribufurostanosides A-E (1-5), and three known ones (6-8) were isolated from the fruits of Tribulus terrestris L. Their chemical structures were determined by the IR, HR-ESI-MS, 1D-, and 2D-NMR spectra. Furostanols 1-8 significantly inhibited nitric oxide production in LPS activated RAW 264.
View Article and Find Full Text PDFHeliyon
May 2024
NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ward 13, District 04, Ho Chi Minh City, Viet Nam.
Recently, agriculture systems have faced numerous challenges involving sustainable nutrient use efficiency and feeding, environmental pollution especially heavy metals (HMs), infection of harmful microorganisms, and maintenance of crop production quality during postharvesting and packaging. Nanotechnology and nanomaterials have emerged as powerful tools in agriculture applications that provide alternatives or support traditional methods. This review aims to address and highlight the current overarching issue and various implementation strategies of nanotechnology for sustainable agriculture development.
View Article and Find Full Text PDFJ Transl Med
May 2024
Van Lang University, Ho Chi Minh City, Vietnam.
Objective: The aim of the present pilot study was to assess the effectiveness of the platelet-rich fibrin (PRF) apical barrier for the placement of MTA for the treatment of teeth with periapical lesions and open apices.
Methods: A total of thirty teeth on twenty-eight patients with open apices and periapical periodontitis were enrolled and divided into two groups in the present pilot study. In the PRF group (fourteen teeth in thirteen patients), nonsurgical endodontic treatment was performed using PRF as an apical matrix, after which the apical plug of the MTA was created.
J Invertebr Pathol
July 2024
Department of Science and Technology, HUTECH University, 475A Dien Bien Phu Street, Ward 25, Binh Thanh District, Ho Chi Minh City 700000, Viet Nam. Electronic address:
Chem Biodivers
August 2024
Institute of Marine Biochemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam.
Four undescribed spirostan glycosides, (25S)-5α-spirostan- 12-one-2α,3β-diol-3-O-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside (1), (25S)-5α-spirostan-12-one-2α,3β-diol-3-O-β-D-galatopyranosyl-(1→2)-β-D-glucopyranosyl- (1→4)-β-D-galactopyranoside (2), (25S)-5α-spirostan-12-one-2α,3β-diol-3-O-β-D-glucopyranosyl-(1→2)-[β-D-glucopyranosyl-(1→3)]-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside (3), and hecogenin 3-O-β-D-glucopyranosyl-(1→3)-[β-D-xylopyranosyl-(1→2)]-β-D-glucopyranosyl-(1→4)-[α-L-rhamnopyranosyl-(1→2)]-β-D-galactopyranoside (4), together with eleven known compounds (5-15) were isolated from the branches and leaves of Tribulus terrestris. Their chemical structures were established through spectroscopic methods, including HR-ESI-MS, 1D-, and 2D-NMR spectra. Preliminary biological evaluation on NO production inhibitory activity in LPS activated RAW 264.
View Article and Find Full Text PDFAIDS
July 2024
Maternal Adolescent and Child Health Research Unit (MRU), Department of Obstetrics and Gynaecology, University of the Witwatersrand, Faculty of Health Sciences, Durban, South Africa.
Background: In recent decades, a high prevalence of mental health problems among adolescents has been reported worldwide. In Vietnam, mental health problems such as emotional and behavioural difficulties are relatively common in the adolescent age group.
Objective: This study aimed to estimate the prevalence of emotional-behavioural problems and prosocial behaviours in Vietnamese adolescents and identify the role of social support in these adolescents' strengths and difficulties.
ACS Omega
May 2024
Can Tho University, 3-2 Road, Can Tho 900000, Vietnam.
Graphene quantum dots have been widely studied owing to their unique optical, electrical, and optoelectrical properties for various applications in solar devices. Here, we investigate the optoelectronic properties of hexagonal and nitrogen-doped graphene quantum dots using the first-principles method. We find that doping nitrogen atoms to hexagonal graphene quantum dots results in a significant red shift toward the visible light range as compared to that of the pristine graphene quantum dots, and the doped nitrogen atoms also induce a clear signature of anisotropy of the frontier orbitals induced by the electron correlation between the doped nitrogen atoms and their adjacent carbon atoms.
View Article and Find Full Text PDFOpen Vet J
March 2024
Department of Animal Science and Veterinary Medicine, School of Agriculture and Aquaculture, Tra Vinh University, Tra Vinh, Vietnam.
Background: The increased number of cases of highly pathogenic avian influenza (HPAI) as a zoonosis has raised concerns in terms of poultry and human health. Farmers' preventive practices are an effective way of reducing zoonosis. However, this practice may have been affected by many factors, including production behaviors, awareness, and farmers' perceptions of farmers toward zoonosis.
View Article and Find Full Text PDFRSC Adv
April 2024
Institute of Material Science, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Hanoi 100000 Vietnam
This study attempted to improve the photocatalytic activity of zinc oxide (ZnO) semiconductors in the visible light region by introducing the co-doping of carbon (C) and tantalum (Ta) to ZnO (ZTC) using a simple hydrothermal method with the respective precursors. The obtained uniform ZTC nanoparticles with an average crystal size of 29.30 nm (according to Scherrer's equation) revealed a redshift with a decrease in bandgap () from 3.
View Article and Find Full Text PDFBeilstein J Nanotechnol
April 2024
BioNano Applications Research Center, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Republic of Korea.
Antioxidants play an important role in the prevention of oxidative stress and have been widely used in medicine and healthcare. However, natural antioxidants have several limitations such as low stability, difficult long-term storage, and high cost of large-scale production. Along with significant advances in nanotechnology, nanomaterials have emerged as a promising solution to improve the limitations of natural antioxidants because of their high stability, easy storage, time effectiveness, and low cost.
View Article and Find Full Text PDFBMC Oral Health
March 2024
Hospital of Odonto-Stomatology, Ho Chi Minh City, Vietnam.
HIV Med
August 2024
Department of Microbiology, Tribhuvan University Teaching Hospital, Institute of Medicine, Kathmandu, Nepal.
Introduction: Co-infection with HIV and mpox is a significant issue for public health because of the potential combined impact on clinical outcomes. However, the existing literature lacks a comprehensive synthesis of the available evidence. The purpose of this meta-analysis is to provide insight into the impact of HIV and mpox co-infection on clinical outcomes.
View Article and Find Full Text PDFACS Omega
February 2024
Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi 100000, Vietnam.
The adsorption and degradation capacities of dichlorodiphenyltrichloroethane (DDT) on a photocatalyst composed of TiO supported on the mesoporous material MCM-41 (TiO/MCM-41) were investigated using density functional theory and real-time density functional theory methods. The van der Waals interactions within the PBE functional were adjusted by using the Grimme approach. The adsorption of DDT was evaluated through analyses involving adsorption energy, Hirshfeld atomic charges, Wiberg bond orders, molecular electrostatic potential, noncovalent interaction analysis, and bond path analysis.
View Article and Find Full Text PDFSyst Parasitol
February 2024
Institute of Ecology and Biological Resources, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
Between 2010 and 2023, a longitudinal study was undertaken to uncover the diversity of the parasite fauna of marine fishes in the Cat Ba Archipelago, a world biosphere reserve, in Vietnam. A total of 1,042 specimens representing 80 different fish species were collected and examined. Of these, 68 fish species, represented by 994 specimens (95.
View Article and Find Full Text PDFBMC Oral Health
February 2024
Hospital of Odonto-Stomatology, Ho Chi Minh City, Vietnam.
Background: The present study aimed to evaluate the effectiveness of using platelet-rich fibrin (PRF) as the apical matrix for the placement of MTA in nonsurgical endodontic therapy for teeth with periapical lesions and open apices.
Methods: Twelve teeth from eleven patients with periapical periodontitis and open apices were enrolled in the study. Nonsurgical endodontic therapy was performed with the PRF used as an apical barrier and the MTA manipulated as an apical plug for further thermoplasticized gutta percha in the remaining part of the root canal.