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Investigation of the interactions between silver nanoparticles and Hela cells by scanning electrochemical microscopy
The interactions between Hela cells and silver nanoparticles (AgNPs) have been studied by scanning electrochemical microscopy (SECM) with both IrCl(6)(2-/3-) and Fe(CN)(6)(3-/4-) as the dual mediators. IrCl(6)(2-), which can be produced in situ and react with AgNPs, is used as the mediator between t...
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Published in: | Analyst (London) 2008-09, Vol.133 (9), p.1221-1228 |
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description | The interactions between Hela cells and silver nanoparticles (AgNPs) have been studied by scanning electrochemical microscopy (SECM) with both IrCl(6)(2-/3-) and Fe(CN)(6)(3-/4-) as the dual mediators. IrCl(6)(2-), which can be produced in situ and react with AgNPs, is used as the mediator between the AgNPs on the cells and the SECM tip. Another redox couple, Fe(CN)(6)(3-/4-), which has a similar hydrophilicity to IrCl(6)(2-/3-), but cannot react with AgNPs, is also employed for the contrast experiments. The cell array is cultured successfully onto a Petri dish by microcontact printing (muCP) technique, which can provide a basic platform for studying of single cells. The approach curve and line scan are the two methods of SECM employed here to study the Hela cells. The former can provide the information about the interaction between Hela cells and AgNPs whereas the later gives the cell imaging. The permeability of cell membranes and morphology are two main factors which have effects on the feedback mode signals when K(3)Fe(CN)(6) is used as the mediator. The permeability of the cell membranes can be ignored after interaction with high concentration of AgNP solution and the height of the Hela cells is slightly decreased in this process. The kinetic rate constants (k(0)) between IrCl(6)(2-) and Ag on the Hela cell can be evaluated using K(3)IrCl(6) as the mediator, and they are increased with the higher concentrations of the AgNP solutions. The k(0) is changed about 10 times from 0.43 +/- 0.04 x 10(-4) to 1.25 +/- 0.07 x 10(-4) and to 3.93 +/- 1.9 x 10(-4) cm s(-1) corresponding to 0, 1 and 5 mM of AgNO(3) solution. The experimental results demonstrate that the AgNPs can be adsorbed on the cell surface and detected by SECM. Thus, the amount of AgNPs adsorbed on cell membranes and the permeability or morphology changes can be investigated simultaneously using this approach. The dual mediator system and cell array fabricated by muCP technique can provide better reproducibility because they can simplify experiments, and provide a platform for further single cell detection. |
doi_str_mv | 10.1039/b807057a |
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IrCl(6)(2-), which can be produced in situ and react with AgNPs, is used as the mediator between the AgNPs on the cells and the SECM tip. Another redox couple, Fe(CN)(6)(3-/4-), which has a similar hydrophilicity to IrCl(6)(2-/3-), but cannot react with AgNPs, is also employed for the contrast experiments. The cell array is cultured successfully onto a Petri dish by microcontact printing (muCP) technique, which can provide a basic platform for studying of single cells. The approach curve and line scan are the two methods of SECM employed here to study the Hela cells. The former can provide the information about the interaction between Hela cells and AgNPs whereas the later gives the cell imaging. The permeability of cell membranes and morphology are two main factors which have effects on the feedback mode signals when K(3)Fe(CN)(6) is used as the mediator. The permeability of the cell membranes can be ignored after interaction with high concentration of AgNP solution and the height of the Hela cells is slightly decreased in this process. The kinetic rate constants (k(0)) between IrCl(6)(2-) and Ag on the Hela cell can be evaluated using K(3)IrCl(6) as the mediator, and they are increased with the higher concentrations of the AgNP solutions. The k(0) is changed about 10 times from 0.43 +/- 0.04 x 10(-4) to 1.25 +/- 0.07 x 10(-4) and to 3.93 +/- 1.9 x 10(-4) cm s(-1) corresponding to 0, 1 and 5 mM of AgNO(3) solution. The experimental results demonstrate that the AgNPs can be adsorbed on the cell surface and detected by SECM. Thus, the amount of AgNPs adsorbed on cell membranes and the permeability or morphology changes can be investigated simultaneously using this approach. The dual mediator system and cell array fabricated by muCP technique can provide better reproducibility because they can simplify experiments, and provide a platform for further single cell detection.</description><identifier>ISSN: 0003-2654</identifier><identifier>EISSN: 1364-5528</identifier><identifier>DOI: 10.1039/b807057a</identifier><identifier>PMID: 18709198</identifier><identifier>CODEN: ANALAO</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Analytical chemistry ; Chemistry ; Electrochemical methods ; Electrochemistry - methods ; Exact sciences and technology ; HeLa Cells - metabolism ; HeLa Cells - ultrastructure ; Humans ; Metal Nanoparticles - chemistry ; Microchemistry - methods ; Microscopy, Electron, Scanning ; Silver - metabolism</subject><ispartof>Analyst (London), 2008-09, Vol.133 (9), p.1221-1228</ispartof><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c342t-711458e6fc07804af98671188fd673c409f1456fdfb26ad532f545b88d72ba933</citedby><cites>FETCH-LOGICAL-c342t-711458e6fc07804af98671188fd673c409f1456fdfb26ad532f545b88d72ba933</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20647156$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18709198$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chen, Zhong</creatorcontrib><creatorcontrib>Xie, Shubao</creatorcontrib><creatorcontrib>Shen, Li</creatorcontrib><creatorcontrib>Du, Yu</creatorcontrib><creatorcontrib>He, Shali</creatorcontrib><creatorcontrib>Li, Qing</creatorcontrib><creatorcontrib>Liang, Zhongwei</creatorcontrib><creatorcontrib>Meng, Xin</creatorcontrib><creatorcontrib>Li, Bo</creatorcontrib><creatorcontrib>Xu, Xiaodong</creatorcontrib><creatorcontrib>Ma, Hongwei</creatorcontrib><creatorcontrib>Huang, Yanyi</creatorcontrib><creatorcontrib>Shao, Yuanhua</creatorcontrib><title>Investigation of the interactions between silver nanoparticles and Hela cells by scanning electrochemical microscopy</title><title>Analyst (London)</title><addtitle>Analyst</addtitle><description>The interactions between Hela cells and silver nanoparticles (AgNPs) have been studied by scanning electrochemical microscopy (SECM) with both IrCl(6)(2-/3-) and Fe(CN)(6)(3-/4-) as the dual mediators. IrCl(6)(2-), which can be produced in situ and react with AgNPs, is used as the mediator between the AgNPs on the cells and the SECM tip. Another redox couple, Fe(CN)(6)(3-/4-), which has a similar hydrophilicity to IrCl(6)(2-/3-), but cannot react with AgNPs, is also employed for the contrast experiments. The cell array is cultured successfully onto a Petri dish by microcontact printing (muCP) technique, which can provide a basic platform for studying of single cells. The approach curve and line scan are the two methods of SECM employed here to study the Hela cells. The former can provide the information about the interaction between Hela cells and AgNPs whereas the later gives the cell imaging. The permeability of cell membranes and morphology are two main factors which have effects on the feedback mode signals when K(3)Fe(CN)(6) is used as the mediator. The permeability of the cell membranes can be ignored after interaction with high concentration of AgNP solution and the height of the Hela cells is slightly decreased in this process. The kinetic rate constants (k(0)) between IrCl(6)(2-) and Ag on the Hela cell can be evaluated using K(3)IrCl(6) as the mediator, and they are increased with the higher concentrations of the AgNP solutions. The k(0) is changed about 10 times from 0.43 +/- 0.04 x 10(-4) to 1.25 +/- 0.07 x 10(-4) and to 3.93 +/- 1.9 x 10(-4) cm s(-1) corresponding to 0, 1 and 5 mM of AgNO(3) solution. The experimental results demonstrate that the AgNPs can be adsorbed on the cell surface and detected by SECM. Thus, the amount of AgNPs adsorbed on cell membranes and the permeability or morphology changes can be investigated simultaneously using this approach. The dual mediator system and cell array fabricated by muCP technique can provide better reproducibility because they can simplify experiments, and provide a platform for further single cell detection.</description><subject>Analytical chemistry</subject><subject>Chemistry</subject><subject>Electrochemical methods</subject><subject>Electrochemistry - methods</subject><subject>Exact sciences and technology</subject><subject>HeLa Cells - metabolism</subject><subject>HeLa Cells - ultrastructure</subject><subject>Humans</subject><subject>Metal Nanoparticles - chemistry</subject><subject>Microchemistry - methods</subject><subject>Microscopy, Electron, Scanning</subject><subject>Silver - metabolism</subject><issn>0003-2654</issn><issn>1364-5528</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqF0c1rFDEUAPAgit1Wwb9AcrH0MppMPiY5lqXaQsGLnoc3mZc2JZvZJtmW_e_N0q0eveSRx4_H-yDkE2dfORP222TYwNQAb8iKCy07pXrzlqwYY6LrtZIn5LSUh_blTLH35ISbgVluzYrUm_SEpYY7qGFJdPG03iMNqWIGd0gVOmF9Rky0hPiEmSZIyxZyDS5ioZBmeo0RqMMYm93T4iClkO4oRnQ1L-4eN8FBpO3NS3HLdv-BvPMQC348xjPy-_vVr_V1d_vzx8368rZzQva1GziXyqD2jg2GSfDW6JYzxs96EE4y6xvQfvZTr2FWovdKqsmYeegnsEKckfOXutu8PO7amOMmlEOjkHDZlVFb2Vth2X-hkMIIY3mDFy_wMErJ6MdtDhvI-5Gz8XCK8fUUjX4-1txNG5z_wePuG_hyBNB2Fn2G5EL563qm5cCVFn8A_jmSBg</recordid><startdate>20080901</startdate><enddate>20080901</enddate><creator>Chen, Zhong</creator><creator>Xie, Shubao</creator><creator>Shen, Li</creator><creator>Du, Yu</creator><creator>He, Shali</creator><creator>Li, Qing</creator><creator>Liang, Zhongwei</creator><creator>Meng, Xin</creator><creator>Li, Bo</creator><creator>Xu, Xiaodong</creator><creator>Ma, Hongwei</creator><creator>Huang, Yanyi</creator><creator>Shao, Yuanhua</creator><general>Royal Society of Chemistry</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>7X8</scope></search><sort><creationdate>20080901</creationdate><title>Investigation of the interactions between silver nanoparticles and Hela cells by scanning electrochemical microscopy</title><author>Chen, Zhong ; Xie, Shubao ; Shen, Li ; Du, Yu ; He, Shali ; Li, Qing ; Liang, Zhongwei ; Meng, Xin ; Li, Bo ; Xu, Xiaodong ; Ma, Hongwei ; Huang, Yanyi ; Shao, Yuanhua</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c342t-711458e6fc07804af98671188fd673c409f1456fdfb26ad532f545b88d72ba933</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Analytical chemistry</topic><topic>Chemistry</topic><topic>Electrochemical methods</topic><topic>Electrochemistry - methods</topic><topic>Exact sciences and technology</topic><topic>HeLa Cells - metabolism</topic><topic>HeLa Cells - ultrastructure</topic><topic>Humans</topic><topic>Metal Nanoparticles - chemistry</topic><topic>Microchemistry - methods</topic><topic>Microscopy, Electron, Scanning</topic><topic>Silver - metabolism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Zhong</creatorcontrib><creatorcontrib>Xie, Shubao</creatorcontrib><creatorcontrib>Shen, Li</creatorcontrib><creatorcontrib>Du, Yu</creatorcontrib><creatorcontrib>He, Shali</creatorcontrib><creatorcontrib>Li, Qing</creatorcontrib><creatorcontrib>Liang, Zhongwei</creatorcontrib><creatorcontrib>Meng, Xin</creatorcontrib><creatorcontrib>Li, Bo</creatorcontrib><creatorcontrib>Xu, Xiaodong</creatorcontrib><creatorcontrib>Ma, Hongwei</creatorcontrib><creatorcontrib>Huang, Yanyi</creatorcontrib><creatorcontrib>Shao, Yuanhua</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><jtitle>Analyst (London)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Zhong</au><au>Xie, Shubao</au><au>Shen, Li</au><au>Du, Yu</au><au>He, Shali</au><au>Li, Qing</au><au>Liang, Zhongwei</au><au>Meng, Xin</au><au>Li, Bo</au><au>Xu, Xiaodong</au><au>Ma, Hongwei</au><au>Huang, Yanyi</au><au>Shao, Yuanhua</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Investigation of the interactions between silver nanoparticles and Hela cells by scanning electrochemical microscopy</atitle><jtitle>Analyst (London)</jtitle><addtitle>Analyst</addtitle><date>2008-09-01</date><risdate>2008</risdate><volume>133</volume><issue>9</issue><spage>1221</spage><epage>1228</epage><pages>1221-1228</pages><issn>0003-2654</issn><eissn>1364-5528</eissn><coden>ANALAO</coden><abstract>The interactions between Hela cells and silver nanoparticles (AgNPs) have been studied by scanning electrochemical microscopy (SECM) with both IrCl(6)(2-/3-) and Fe(CN)(6)(3-/4-) as the dual mediators. IrCl(6)(2-), which can be produced in situ and react with AgNPs, is used as the mediator between the AgNPs on the cells and the SECM tip. Another redox couple, Fe(CN)(6)(3-/4-), which has a similar hydrophilicity to IrCl(6)(2-/3-), but cannot react with AgNPs, is also employed for the contrast experiments. The cell array is cultured successfully onto a Petri dish by microcontact printing (muCP) technique, which can provide a basic platform for studying of single cells. The approach curve and line scan are the two methods of SECM employed here to study the Hela cells. The former can provide the information about the interaction between Hela cells and AgNPs whereas the later gives the cell imaging. The permeability of cell membranes and morphology are two main factors which have effects on the feedback mode signals when K(3)Fe(CN)(6) is used as the mediator. The permeability of the cell membranes can be ignored after interaction with high concentration of AgNP solution and the height of the Hela cells is slightly decreased in this process. The kinetic rate constants (k(0)) between IrCl(6)(2-) and Ag on the Hela cell can be evaluated using K(3)IrCl(6) as the mediator, and they are increased with the higher concentrations of the AgNP solutions. The k(0) is changed about 10 times from 0.43 +/- 0.04 x 10(-4) to 1.25 +/- 0.07 x 10(-4) and to 3.93 +/- 1.9 x 10(-4) cm s(-1) corresponding to 0, 1 and 5 mM of AgNO(3) solution. The experimental results demonstrate that the AgNPs can be adsorbed on the cell surface and detected by SECM. Thus, the amount of AgNPs adsorbed on cell membranes and the permeability or morphology changes can be investigated simultaneously using this approach. The dual mediator system and cell array fabricated by muCP technique can provide better reproducibility because they can simplify experiments, and provide a platform for further single cell detection.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><pmid>18709198</pmid><doi>10.1039/b807057a</doi><tpages>8</tpages></addata></record> |
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subjects | Analytical chemistry Chemistry Electrochemical methods Electrochemistry - methods Exact sciences and technology HeLa Cells - metabolism HeLa Cells - ultrastructure Humans Metal Nanoparticles - chemistry Microchemistry - methods Microscopy, Electron, Scanning Silver - metabolism |
title | Investigation of the interactions between silver nanoparticles and Hela cells by scanning electrochemical microscopy |
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