Effect of Silver Nanoparticles on Growth of Eukaryotic Green Algae

作     者：Anjali Dash Anand P.Singh Bansh R.Chaudhary Sunil K.Singh Debabrata Dash 

作者机构：Department of BiochemistryInstitute of Medical SciencesBanaras Hindu University Centre of Advanced Study in BotanyBanaras Hindu University 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2012年第4卷第3期

页      面：158-165页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 0817[工学-化学工程与技术] 08[工学] 070205[理学-凝聚态物理] 0815[工学-水利工程] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by grants received by Anjali Dash from DST Women Scientist Scheme (DST WOSA) by D.Dash from the Department of Biotechnology (DBT),Govt.of India the Indian Council of Medical Research (ICMR) 

主　　题：Silver nanoparticles Green algae Algal growth Photosynthetic pigment Nanotoxicity 

摘      要：Silver nanoparticles,endowed with powerful antimicrobial property,are the most widely used nanomaterial in consumer products,with associated risk of their easy access to environment and freshwater ecosystems by surface *** toxic effects of nanosilver on bacterial,fungal and mammalian cells have been documented,its impact on algal growth remains *** oedogonia and Chara vulgaris are predominant members of photosynthetic eukaryotic algae,which form major component of global aquatic *** we report for the first time that nanosilver has significant adverse effects on growth and morphology of these filamentous green algae in a dose-dependent *** of algal thalli to increasing concentrations of silver nanoparticles resulted in progressive depletion in algal chlorophyll content,chromosome instability and mitotic disturbance,associated with morphological malformations in algal *** micrographs revealed dramatic alterations in cell wall in nanoparticle-treated algae,characterized with cell wall rupture and degradation in *** these observations underscore severe deleterious effects of nanosilver on aquatic environment,the information can also be exploited as a bioengineering strategy to control unwanted and persistent growth of noxious algal weeds that clog the municipal water supply and water channels and produce fouling of water bodies.