Bioreduction of chloroaurate ions to gold nanoparticles by culture filtrate of Pleurotus sapidus Quél
The present study demonstrates an eco-friendly, non-toxic and cost-effective protocol for synthesis of gold nanoparticles (AuNPs) in aqueous medium using Pleurotus sapidus culture filtrate as the reducing and stabilizing agent. On treating chloroauric acid solutions with fungal culture filtrate, rap...
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| Published in | Materials letters Vol. 92; pp. 313 - 316 |
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| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
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Elsevier B.V
01.02.2013
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| Abstract | The present study demonstrates an eco-friendly, non-toxic and cost-effective protocol for synthesis of gold nanoparticles (AuNPs) in aqueous medium using Pleurotus sapidus culture filtrate as the reducing and stabilizing agent. On treating chloroauric acid solutions with fungal culture filtrate, rapid reduction of chloroaurate ions is observed leading to the formation of highly stable AuNPs in solution. The particles thereby obtained were characterized by different spectroscopic and X-ray analysis. EDX-spectrum revealed the presence of gold in the nanoparticles. FTIR spectroscopy confirmed the presence of a protein shell outside the nanoparticles which in turn also support their stabilization. DLS and TEM analysis of the AuNPs indicated that they ranged in size from 15 to 100nm with average size of 65±5nm. A probable mechanism behind the biosynthesis is discussed, which leads to the possibility of using the present protocol in future “nano-factories”.
The change of colours signature the formation of gold nanoparticles and the electron microscopic image showed the different types of gold nanoparticles. [Display omitted]
► This is the process to biosynthesize of gold nanoparticles by using a mushroom. ► A time dependent colour change to dark red signifies the synthesis of nano-gold. ► The synthesis of the gold nanoparticles was monitored by UV–visible spectroscopy. ► Synthesized gold nanoparticles were characterized by DLS, XRD, EDX, FTIR and TEM. |
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| AbstractList | The present study demonstrates an eco-friendly, non-toxic and cost-effective protocol for synthesis of gold nanoparticles (AuNPs) in aqueous medium using Pleurotus sapidus culture filtrate as the reducing and stabilizing agent. On treating chloroauric acid solutions with fungal culture filtrate, rapid reduction of chloroaurate ions is observed leading to the formation of highly stable AuNPs in solution. The particles thereby obtained were characterized by different spectroscopic and X-ray analysis. EDX-spectrum revealed the presence of gold in the nanoparticles. FTIR spectroscopy confirmed the presence of a protein shell outside the nanoparticles which in turn also support their stabilization. DLS and TEM analysis of the AuNPs indicated that they ranged in size from 15 to 100nm with average size of 65±5nm. A probable mechanism behind the biosynthesis is discussed, which leads to the possibility of using the present protocol in future “nano-factories”.
The change of colours signature the formation of gold nanoparticles and the electron microscopic image showed the different types of gold nanoparticles. [Display omitted]
► This is the process to biosynthesize of gold nanoparticles by using a mushroom. ► A time dependent colour change to dark red signifies the synthesis of nano-gold. ► The synthesis of the gold nanoparticles was monitored by UV–visible spectroscopy. ► Synthesized gold nanoparticles were characterized by DLS, XRD, EDX, FTIR and TEM. The present study demonstrates an eco-friendly, non-toxic and cost-effective protocol for synthesis of gold nanoparticles (AuNPs) in aqueous medium using Pleurotus sapidus culture filtrate as the reducing and stabilizing agent. On treating chloroauric acid solutions with fungal culture filtrate, rapid reduction of chloroaurate ions is observed leading to the formation of highly stable AuNPs in solution. The particles thereby obtained were characterized by different spectroscopic and X-ray analysis. EDX-spectrum revealed the presence of gold in the nanoparticles. FTIR spectroscopy confirmed the presence of a protein shell outside the nanoparticles which in turn also support their stabilization. DLS and TEM analysis of the AuNPs indicated that they ranged in size from 15 to 100nm with average size of 65±5nm. A probable mechanism behind the biosynthesis is discussed, which leads to the possibility of using the present protocol in future “nano-factories”. |
| Author | Sarkar, Joy Laskar, Aparna Acharya, Krishnendu Kalyan Roy, Suman Chattopadhyay, Dipankar |
| Author_xml | – sequence: 1 givenname: Joy surname: Sarkar fullname: Sarkar, Joy organization: Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata 700019, India – sequence: 2 givenname: Suman surname: Kalyan Roy fullname: Kalyan Roy, Suman organization: Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata 700019, India – sequence: 3 givenname: Aparna surname: Laskar fullname: Laskar, Aparna organization: Transmission Electron Microscopy Section (Infectious Disease and Immunology), CSIR-Indian Institute of Chemical Biology, Kolkata 700032, India – sequence: 4 givenname: Dipankar surname: Chattopadhyay fullname: Chattopadhyay, Dipankar organization: Department of Polymer Science & Technology, University College of Science & Technology, University of Calcutta, Kolkata 700009, India – sequence: 5 givenname: Krishnendu surname: Acharya fullname: Acharya, Krishnendu email: krish_paper@yahoo.com organization: Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata 700019, India |
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| Cites_doi | 10.1039/c2cs15337h 10.1021/jp0752668 10.1166/asl.2012.2137 10.1007/s00449-011-0646-4 10.1021/ja057254a 10.1016/j.copbio.2004.11.003 10.1016/j.actbio.2010.01.019 10.1038/nmat974 10.1049/mnl.2011.0227 10.1186/1556-276X-6-261 |
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| References | Sarkar, Ray, Chattopadhyay, Laskar, Acharya (bib12) 2012; 35 Gao, Yang, Petros, Marshall, Simons, Nie (bib2) 2005; 16 Saha, Sarkar, Chattopadhyay, Patra, Chakraborty, Acharya (bib7) 2010; 5 Saha, Chattopadhyaya, Acharya (bib9) 2011; 6 Huang, El-Sayed, Qian, El-Sayed (bib4) 2006; 128 Sarkar, Chattopadhyay, Patra, Deo, Sinha, Ghosh (bib8) 2011; 6 Salem, Searson, Leong (bib3) 2003; 2 Sarkar, Dey, Saha, Acharya (bib10) 2011; 6 Sarkar, Saha, Dey, Acharya (bib11) 2012; 10 Verma, Singh, Solanki, Prakash (bib13) 2011; 6 Xie, Lee, Wang, Ting (bib14) 2007; 111 Kim, Rheem, Yoo, Chong, Bozhilov, Kim (bib5) 2010; 7 Tikariha, Singh, Banerjee, Vidyarthi (bib6) 2012; 3 Colombo, Carregal-Romero, Casula, Gutierrez, Morales, Bohm (bib1) 2012; 41 Sarkar (10.1016/j.matlet.2012.10.130_bib10) 2011; 6 Saha (10.1016/j.matlet.2012.10.130_bib7) 2010; 5 Salem (10.1016/j.matlet.2012.10.130_bib3) 2003; 2 Sarkar (10.1016/j.matlet.2012.10.130_bib11) 2012; 10 Verma (10.1016/j.matlet.2012.10.130_bib13) 2011; 6 Saha (10.1016/j.matlet.2012.10.130_bib9) 2011; 6 Kim (10.1016/j.matlet.2012.10.130_bib5) 2010; 7 Colombo (10.1016/j.matlet.2012.10.130_bib1) 2012; 41 Gao (10.1016/j.matlet.2012.10.130_bib2) 2005; 16 Huang (10.1016/j.matlet.2012.10.130_bib4) 2006; 128 Sarkar (10.1016/j.matlet.2012.10.130_bib12) 2012; 35 Sarkar (10.1016/j.matlet.2012.10.130_bib8) 2011; 6 Xie (10.1016/j.matlet.2012.10.130_bib14) 2007; 111 Tikariha (10.1016/j.matlet.2012.10.130_bib6) 2012; 3 |
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| SubjectTerms | Biomaterials biosynthesis cost effectiveness Fourier transform infrared spectroscopy fungi gold ions Nanoparticles Pleurotus sapidus Spectroscopy transmission electron microscopy X-radiation X-ray techniques |
| Title | Bioreduction of chloroaurate ions to gold nanoparticles by culture filtrate of Pleurotus sapidus Quél |
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