https://scholar.dlu.edu.vn/handle/123456789/156 2026-05-16T16:43:34Z 2026-05-16T16:43:34Z Trần, Văn Tiến https://scholar.dlu.edu.vn/handle/123456789/6476 2026-04-06T15:25:29Z 2026-03-24T00:00:00Z

Title: A new species of Bamboo (Poaceae, Bambusoideae) from coastal, southern Vietnam Authors: Trần, Văn Tiến Abstract: A newly discovered species of the paleotropical woody bamboo subtribe Bambusinae (Poaceae, Bambusoideae), Cochinchinochloa salta V.T. Tran, from coastal areas of Phu Yen Province, South-Central Vietnam, is described and illustrated. Based on vegetative and reproductive characters, Cochinchinochloa salta shares characters with Cochinchinochloa braiana, but differs from it by having nodes of leafy branches with a thin swollen patella, bud elliptic, the culm leaf blade base slightly protruding, auricles curved and small, and nucoid caryopsis oblique with a relatively thick pericarp.

2026-03-24T00:00:00Z Lê, Thị Anh Tú https://scholar.dlu.edu.vn/handle/123456789/6474 2026-04-03T10:27:16Z 2026-04-03T00:00:00Z

Title: Eco-friendly protection of pine wood using copper nanoparticles biosynthesized from Cleistocalyx operculatus leaf extracts Authors: Lê, Thị Anh Tú

2026-04-03T00:00:00Z Hoàng, Thị Bình Ngoc, Nguyen Van https://scholar.dlu.edu.vn/handle/123456789/6450 2026-03-16T04:23:54Z 2026-03-01T00:00:00Z

Title: Reassessment and Conservation Strategies for Magnolia tiepii V. T. Tran & N. V. Duy in Vietnam Authors: Hoàng, Thị Bình; Ngoc, Nguyen Van

2026-03-01T00:00:00Z Lê, Thị Anh Tú Lê, Hữu Trọng https://scholar.dlu.edu.vn/handle/123456789/6428 2026-02-05T09:28:32Z 2026-01-01T00:00:00Z

Title: Antibacterial activity and burn wound healing properties of biosynthesized silver nanoparticles using Mentha aquatica L. var. aquatica leaf extract Authors: Lê, Thị Anh Tú; Lê, Hữu Trọng Abstract: Introduction: Mentha aquatica L. var. aquatica is a commonly used herb with medicinal prop- erties. Phytochemicals in the leaf extract act as reducing and stabilizing agents during the bio- synthesis of silver nanoparticles (SNPs). The bactericidal and wound healing properties of SNPs biosynthesized from M. aquatica L. var. aquatica leaf extract remain largely unexplored. This study therefore aimed to optimize SNP biosynthesis from M. aquatica L. var. aquatica leaf extract and investigate its antimicrobial properties against S. aureus (gram positive) and P. aeruginosa (gram negative) and potential applications in wound care. Methods: SNPs were synthesized using M. aquatica L. var. aquatica leaf extract; AgNO3 concen- tration, amount of initial leaf extract, and reaction time were analyzed to evaluate the efficiency of biosynthesis. SNPs were characterized through UV–Vis absorption, dynamic light scattering, scan- ning electron microscopy, and transmission electron microscopy. The functional groups of the leaf extract and SNPs were investigated using Fourier transform infrared spectros-copy (FTIR). Further analyses using the well diffusion method and burn wound contraction were performed to investi- gate the antibacterial activity and wound healing properties of SNPs in mice. Results: Optimum SNP synthesis was attained with 5 mM AgNO3, 40 mg/ml leaf extract, and a reaction time of 1 h. FTIR analysis confirmed the involvement of phytochemicals in SNP syn-thesis. SNPs had an average size of 67.05 nm with an irregular spherical shape. SNPs inhibited P. aeruginosa (ATCC 15442) and S. aureus (ATCC 6538); the bactericidal effects were greater on P. aeruginosa than S. aureus. SNP dressings accelerated the wound healing process without causing weight gain in mice. Conclusions: SNPs biosynthesized from M. aquatica L. var. aquatica leaf extract inhibited P. aerugi- nosa and S. aureus. Dressings containing 10% SNPs accelerated wound healing in mice. SNPs could potentially be used as an antibacterial agent to promote wound healing.

2026-01-01T00:00:00Z