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]Periyar Univ, Sch Life Sci, Dept Bot, Ethnopharmacol & Algal Biotechnol Div, Salem 636011, Tamil Nadu, India;[2]Sejong Univ, Coll Life Sci, Dept Food Sci & Biotechnol, Seoul 05006, South Korea;[3]Guangdong Ocean Univ, Coll Coastal Agr Sci, Dept Anim Sci, Zhanjiang 524088, Peoples R China;[4]Periyar Univ, Sch Life Sci, Dept Environm Sci, Salem 636011, India;[5]Periyar Univ, Sch Life Sci, Dept Biotechnol, Salem 636011, Tamil Nadu, India;[6]Univ Teknol Malaysia, Malaysia Japan Int Inst Technol, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia;[7]Natl Res Univ, South Ural State Univ, Dept Elect Power Stn Network & Supply Syst, 76 Prospekt Lenina, Chelyabinsk 454080, Russia;[8]Taif Univ, Coll Engn, Dept Civil Engn, POB 11099, At Taif 21944, Saudi Arabia;[9]Thiagarajar Coll, Dept Bot, Madurai 625009, Tamil Nadu, India;[10]Saveetha Univ, Saveetha Sch Engn, Saveetha Inst Med & Tech Sci, Dept Energy & Environm Engn, Chennai 600077, Tamil Nadu, India;[11]Univ Teknol Malaysia, Razak Fac Technol & Informat, Engn Dept, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia

年份：2022

卷号：204

外文期刊名：ENVIRONMENTAL RESEARCH

收录：SCI-EXPANDED(收录号：WOS:000730784100008)、、WOS

基金：The authors of the present paper acknowledge the support received by Taif University Researchers supporting project number (TURSP-2020/196) , Taif University, Saudi Arabia. Also, the authors gratefully acknowledge support from the Universiti Teknologi Malaysia and Post-Doctoral fellow (Teaching & Learning) Scheme under MJIIT-UTM and thankful to the South Ural State University for extending support for research collaboration and invitation as visiting senior researcher.

语种：英文

外文关键词：Brown seaweed; Bioactive potential; Titanium nanomaterials; Pathogenic activity; Antibiofilm; Dye degradation

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 abovementioned charactersitics. Therfore, the current study performed phycosynthesis of titanium dioxide nano-particles (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 (similar to 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 mM. 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.