http://tvhdh.vnio.org.vn:8080/dspace/handle/123456789/1 Tất cả chứa ở đây 2026-06-25T09:16:39Z http://tvhdh.vnio.org.vn:8080/dspace/handle/123456789/21752 Title: Assessing the vulnerability of marine ecosystems in the Gulf of Tonkin to human impacts and climate change - natural disasters. Authors: Tran, Duc Thanh; Dang, Hoai Nhon; Bui, Van Vuong; Duong, Thanh Nghi; Nguyen, Dang Ngai; Cao, Thi Thu Trang; Vu, Duy Vinh 2026-06-25T00:00:00Z http://tvhdh.vnio.org.vn:8080/dspace/handle/123456789/21751 Title: Study on fatty acids composition of Pinna nobilis species collected in the coastal areas of Phan Rang Bay and South Binh Thuan, Vietnam. Authors: Dang, Thi Phuong Ly; Dao, Thi Kim Dung; Nguyen, Thi Nga; Dang, Thi Minh Tuyet; Ngo, Thu Trang; Trinh, Thi Thu Huong; Luu, Tuan Anh; Valeriia, Petrovna Grigorchuk; Pham, Quoc Long 2026-06-25T00:00:00Z http://tvhdh.vnio.org.vn:8080/dspace/handle/123456789/21750 Title: Characterization of microplastic pollution in coastal sediments of Vietnam. Authors: Le, Xuan Thanh Thao; Huynh, Duc Long; Luu, Thi Trang; Do, Van Manh 2026-01-01T00:00:00Z http://tvhdh.vnio.org.vn:8080/dspace/handle/123456789/21749 Title: A triterpene and four sesquiterpenes from the Vietnamese sea hare Aplysia dactylomela. Authors: Pham, Thanh Binh; Duong, Thu Trang; Vu, Thanh Trung; Kieu, Thi Phuong Linh; Le, Ba Vinh; Nguyen, Phuong Thao; Nguyen, Chi Mai; Tran, My Linh; Nguyen, Van Thanh Abstract: The present study aimed to investigate the chemical constituents and biological activities of the marine mollusk Aplysia dactylomela collected from Quang Ngai Province, Vietnam. Chemical investigation of the methanolic extract of this organism led to the isolation of five compounds, including thyrsiferol (1), 11-hydroxy-8-oxo-β-cyperon (2), (+)-elatol (3), [3(15)E,4Z,6S,9S,10R]-10,15-dibromochamigra-3(15),4,7(14)-trien-9-ol (4), and pacifidiene (5). The chemical structures of these metabolites were elucidated from high-resolution electrospray ionization mass spectrometry (HR-ESI-MS) and 1D/2D NMR spectral data. Notably, this is the first report of compound 2 being isolated from the species A. dactylomela, and its complete NMR spectral assignments are provided here for the first time. All isolated metabolites were further evaluated for their in vitro cytotoxic activity against three human cancer cell lines, namely lung (A549), breast (MCF-7), and liver (HepG2) cancers. Among the tested compounds, compound 3 exhibited significant cytotoxicity against all tested cell lines, with IC50 values ranging from 5.07 ± 0.96 to 6.55 ± 0.44 μM. 2026-01-01T00:00:00Z http://tvhdh.vnio.org.vn:8080/dspace/handle/123456789/21748 Title: Nghiên cứu khả năng hấp phụ kim loại nặng (Cd, Pb) của pectin chiết từ loài cỏ biển Enhalus acoroides Authors: Cao, Thị Thuý Hằng; Trần, Thị Thanh Vân; Trần, Nguyễn Hà Vy; Võ, Thị Thuận; Võ, Mai Như Hiếu; Phạm, Đức Thịnh 2026-06-23T00:00:00Z