文献类型：期刊文献

英文题名：Sargassum myriocystum-mediated TiO2-nanoparticles and their antimicrobial, larvicidal activities and enhanced photocatalytic degradation of various dyes

作者：Balaraman, Perumal[1]; Balasubramanian, Balamuralikrishnan[2]; Liu, Wen-Chao[3]; Kaliannan, Durairaj[4]; Durai, Mahendran[5]; Kamyab, Hesam[6,7]; Alwetaishi, Mamdooh[8]; Maluventhen, Viji[9]; Ashokkumar, Veeramuthu[10]; Chelliapan, Shreeshivadasan[11]; Maruthupandian, Arumugam[1]

机构：[1] Ethnopharmacology and Algal Biotechnology Division, Department of Botany, School of Life Sciences, Periyar University, Salem, Tamil Nadu, 636011, India; [2] Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul, 05006, Korea, Republic of; [3] Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524088, China; [4] Department of Environmental Science, School of Life Sciences, Periyar University, Salem, 636 011, India; [5] Department of Biotechnology, School of Life Sciences, Periyar University, Salem, Tamil Nadu, 636011, India; [6] Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur, 54100, Malaysia; [7] Department of Electric Power Stations, Network and Supply Systems, South Ural State University [National Research University], 76 Prospekt Lenina, Chelyabinsk, 454080, Russia; [8] Department of Civil Engineering, College of Engineering, Taif University, P.O. BOX 11099, Taif, 21944, Saudi Arabia; [9] Department of Botany, Thiagarajar College, Madurai, Tamil Nadu, 625009, India; [10] Department of Energy and Environmental Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600077, India; [11] Engineering Department, Razak Faculty of Technology & Informatics, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur, 54100, Malaysia

年份：2022

卷号：204

外文期刊名：Environmental Research

收录：EI(收录号：20242616386449)、Scopus(收录号：2-s2.0-85119182657)

语种：英文

外文关键词：Aromatic compounds - Dyes - Escherichia coli - Medical applications - Morphology - Particle size analysis - Photocatalytic activity - Seaweed - Synthesis (chemical) - TiO2 nanoparticles

外文摘要：Recently, the phyco-synthesis of nanoparticles has been applied as a reliable approach to modern research field, and it has yielded a wide spectrum of diverse uses in fields such as biological science and environmental science. This study used marine natural resource seaweed Sargassum myriocystum due to their unique phytochemicals and their significant attributes in giving effective response on various biomedical applications. The response is created by their stress-tolerant environmental adaptations. This inspired us to make an attempt using the above-mentioned charactersitics. Therfore, the current study performed phycosynthesis of titanium dioxide nanoparticles (TiO2-NPs) utilising aqueous extracts of S. myriocystum. The TiO2-NPs formation was confirmed in earlier UV–visible spectroscopy analysis. The crystalline structure, functional groups (phycomolecules), particle morphology (cubic, square, and spherical), size (～50–90 nm), and surface charge (negative) of the TiO2-NPs were analysed and confirmed by various characterisation analyses. In addition, the seaweed-mediated TiO2-NPs was investigated, which showed potential impacts on antibacterial activity and anti-biofilm actions against pathogens (Staphylococcus aureus, S. epidermidis, Escherichia coli, Proteus vulgaris, Pseudomonas aeruginosa, and Klebsiella pneumoniae). Additionally, some evaluations were performed on larvicidal activities of TiO2-NPs in oppose to Aedes aegypti and Culex quinquefasciatus mosquitos and the environmental effects of photocatalytic activities against methylene blue and crystal violet under sunlight irradiation. The highest percent of methylene blue degradation was observed at 92.92% within 45 min. Overall, our findings suggested that S. myriocystum mediates TiO2-NPs to be a potent disruptive material for bacterial pathogens and mosquito larvae and also to enhance the photocatalytic dye degradation. ? 2021 Elsevier Inc.