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A comparative study on biologically and chemically synthesized silver nanoparticles induced Heat Shock Proteins on fresh water fish Oreochromis niloticus.
Girilal, M; Krishnakumar, V; Poornima, Paramasivan; Mohammed Fayaz, A; Kalaichelvan, P T.
Afiliación
  • Girilal M; CAS in Botany, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, India. Electronic address: girilal@gmail.com.
  • Krishnakumar V; Department of Zoology, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, India.
  • Poornima P; Department of Biotechnology, Bharathiyar University, Coimbatore, Tamil Nadu, India.
  • Mohammed Fayaz A; Laboratory for Food Chemistry & Microbiology, Department of Food and Nutrition Science, Pavillon Paul Comtois, Universite Laval, Quebec G1K7P4, Canada.
  • Kalaichelvan PT; ALKA-RESEARCH FOUNDATION, 3/137/A1 Anna Nagar, Maruthamalai Adivaaram, Coimbatore 641 046, Tamil Nadu, India.
Chemosphere ; 139: 461-8, 2015 Nov.
Article en En | MEDLINE | ID: mdl-26291676
The wide applicability of silver nanoparticles in medicine and pharmaceutical industries leads to its over exploitation and thus contaminating our environment. Majority of these nanoscale dimension particles finally accumulates in fresh water and marine ecosystem. As the nanoparticles behave entirely different from its corresponding bulk material, a better understanding of their environmental impacts in aquatic ecosystems is inevitable. The study was focused on a comparative stress physiology analysis of chemically synthesized silver nanoparticles and biogenic silver nanoparticles. Half maximal inhibitory concentration of biologically synthesized and chemically synthesized nanoparticles was found out (30µg/mL and 20µg/mL respectively). The Heat Shock Protein (HSP70) secretion was analysed in the fresh water fish Oreochromis niloticus after exposing to different concentrations of biologically and chemically synthesized silver nanoparticles along with the silver in its ionic form. The intense immune-histochemical staining of fish tissues (muscle, kidney and liver) analyzed proportionately reflected the stress created. The colour intensity was directly proportional to the stress created or the stress protein released. High level of HSP70 expression was observed in all of the fish tissues exposed to silver ions and chemically synthesized silver nanoparticles, when compared to that of biologically synthesized. The results revealed the significance of comparatively safe and less toxic biogenic nanoparticles compared to the chemically synthesized.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plata / Contaminantes Químicos del Agua / Proteínas HSP70 de Choque Térmico / Cíclidos / Nanopartículas del Metal Límite: Animals Idioma: En Revista: Chemosphere Año: 2015 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plata / Contaminantes Químicos del Agua / Proteínas HSP70 de Choque Térmico / Cíclidos / Nanopartículas del Metal Límite: Animals Idioma: En Revista: Chemosphere Año: 2015 Tipo del documento: Article Pais de publicación: Reino Unido