Inactivation of Escherichia coli on anatase and rutile nanoparticles using UV and fluorescent light
[Display omitted] ► Photocatalytic deactivation of Escherichia coli in presence of TiO2 nanoparticles ► The presence of catalyst is less important when the radiation is in the UV range ► Rutile has an higher efficiency respect to anatase under visible light. The photocatalytic deactivation of Escher...
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| Veröffentlicht in: | Materials research bulletin 2013-06, Vol.48 (6), p.2095-2101 |
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| container_title | Materials research bulletin |
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| creator | Caratto, V. Aliakbarian, B. Casazza, A.A. Setti, L. Bernini, C. Perego, P. Ferretti, M. |
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► Photocatalytic deactivation of Escherichia coli in presence of TiO2 nanoparticles ► The presence of catalyst is less important when the radiation is in the UV range ► Rutile has an higher efficiency respect to anatase under visible light.
The photocatalytic deactivation of Escherichia coli HB101 by two different structures of TiO2, rutile and anatase (used separately and in a 1:1 mixture), was examined.
The microorganism was deposited on a filter membrane containing 520mg/m2 of TiO2 and then irradiated by a neon lamp. In order to study the rate of deactivation of the microorganism we studied four different exposure times: 20, 40, 60 and 90min. The results showed that rutile has an antimicrobial activity higher than anatase, while the mixture had values near to the average between them in every condition. The highest difference in the inactivation capacity of the two structures is observable at shorter times. The effect of the different crystal phases was evaluated by Scanning Electron Microscopy. |
| doi_str_mv | 10.1016/j.materresbull.2013.02.024 |
| format | Article |
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► Photocatalytic deactivation of Escherichia coli in presence of TiO2 nanoparticles ► The presence of catalyst is less important when the radiation is in the UV range ► Rutile has an higher efficiency respect to anatase under visible light.
The photocatalytic deactivation of Escherichia coli HB101 by two different structures of TiO2, rutile and anatase (used separately and in a 1:1 mixture), was examined.
The microorganism was deposited on a filter membrane containing 520mg/m2 of TiO2 and then irradiated by a neon lamp. In order to study the rate of deactivation of the microorganism we studied four different exposure times: 20, 40, 60 and 90min. The results showed that rutile has an antimicrobial activity higher than anatase, while the mixture had values near to the average between them in every condition. The highest difference in the inactivation capacity of the two structures is observable at shorter times. The effect of the different crystal phases was evaluated by Scanning Electron Microscopy.</description><identifier>ISSN: 0025-5408</identifier><identifier>EISSN: 1873-4227</identifier><identifier>DOI: 10.1016/j.materresbull.2013.02.024</identifier><language>eng</language><publisher>United States: Elsevier Ltd</publisher><subject>60 APPLIED LIFE SCIENCES ; A. Nanostructures ; A. Oxides ; C. Electron microscopy ; C. X-ray diffraction ; CATALYSTS ; CRYSTALS ; D. Catalytic properties ; DEACTIVATION ; DEPOSITS ; EFFICIENCY ; ESCHERICHIA COLI ; FLUORESCENCE ; INACTIVATION ; IRRADIATION ; MATERIALS SCIENCE ; MIXTURES ; NANOPARTICLES ; NANOSCIENCE AND NANOTECHNOLOGY ; NANOSTRUCTURES ; PHOTOCATALYSIS ; RUTILE ; SCANNING ELECTRON MICROSCOPY ; TITANIUM OXIDES ; X-RAY DIFFRACTION</subject><ispartof>Materials research bulletin, 2013-06, Vol.48 (6), p.2095-2101</ispartof><rights>2013 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c352t-2e540f49d8c4813edc38c0aaa9092f31d9cf33df5516d13b0ba142915cc2d283</citedby><cites>FETCH-LOGICAL-c352t-2e540f49d8c4813edc38c0aaa9092f31d9cf33df5516d13b0ba142915cc2d283</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0025540813001098$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22341674$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Caratto, V.</creatorcontrib><creatorcontrib>Aliakbarian, B.</creatorcontrib><creatorcontrib>Casazza, A.A.</creatorcontrib><creatorcontrib>Setti, L.</creatorcontrib><creatorcontrib>Bernini, C.</creatorcontrib><creatorcontrib>Perego, P.</creatorcontrib><creatorcontrib>Ferretti, M.</creatorcontrib><title>Inactivation of Escherichia coli on anatase and rutile nanoparticles using UV and fluorescent light</title><title>Materials research bulletin</title><description>[Display omitted]
► Photocatalytic deactivation of Escherichia coli in presence of TiO2 nanoparticles ► The presence of catalyst is less important when the radiation is in the UV range ► Rutile has an higher efficiency respect to anatase under visible light.
The photocatalytic deactivation of Escherichia coli HB101 by two different structures of TiO2, rutile and anatase (used separately and in a 1:1 mixture), was examined.
The microorganism was deposited on a filter membrane containing 520mg/m2 of TiO2 and then irradiated by a neon lamp. In order to study the rate of deactivation of the microorganism we studied four different exposure times: 20, 40, 60 and 90min. The results showed that rutile has an antimicrobial activity higher than anatase, while the mixture had values near to the average between them in every condition. The highest difference in the inactivation capacity of the two structures is observable at shorter times. The effect of the different crystal phases was evaluated by Scanning Electron Microscopy.</description><subject>60 APPLIED LIFE SCIENCES</subject><subject>A. Nanostructures</subject><subject>A. Oxides</subject><subject>C. Electron microscopy</subject><subject>C. X-ray diffraction</subject><subject>CATALYSTS</subject><subject>CRYSTALS</subject><subject>D. Catalytic properties</subject><subject>DEACTIVATION</subject><subject>DEPOSITS</subject><subject>EFFICIENCY</subject><subject>ESCHERICHIA COLI</subject><subject>FLUORESCENCE</subject><subject>INACTIVATION</subject><subject>IRRADIATION</subject><subject>MATERIALS SCIENCE</subject><subject>MIXTURES</subject><subject>NANOPARTICLES</subject><subject>NANOSCIENCE AND NANOTECHNOLOGY</subject><subject>NANOSTRUCTURES</subject><subject>PHOTOCATALYSIS</subject><subject>RUTILE</subject><subject>SCANNING ELECTRON MICROSCOPY</subject><subject>TITANIUM OXIDES</subject><subject>X-RAY DIFFRACTION</subject><issn>0025-5408</issn><issn>1873-4227</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqNUE1LAzEUDKJgrf6HoOet-drurjepX4WCl-o1pC9v25RtUpK04L9313rwKAw8eMybmTeE3HI24YxP77eTnckYI6bVoesmgnE5YaKHOiMjXleyUEJU52TEmCiLUrH6klyltGWMqbqqRgTm3kB2R5Nd8DS09DnBBqODjTMUQudovzbeZJOwn5bGQ3YdUm982JuYHXSY6CE5v6Yfnz-MtjuEPhCgz7Rz602-Jhet6RLe_M4xWb48L2dvxeL9dT57XBQgS5ELgX2-VjW2BlVziRZkDcwY07BGtJLbBlopbVuWfGq5XLGV4Uo0vAQQVtRyTO5OsiFlpxO4jLCB4D1C1kJIxaeV6lkPJxbEkFLEVu-j25n4pTnTQ6d6q_92qodONRM9huOn0zH2bxwdxsEGPaB1cXCxwf1H5ht3SYhz</recordid><startdate>201306</startdate><enddate>201306</enddate><creator>Caratto, V.</creator><creator>Aliakbarian, B.</creator><creator>Casazza, A.A.</creator><creator>Setti, L.</creator><creator>Bernini, C.</creator><creator>Perego, P.</creator><creator>Ferretti, M.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>201306</creationdate><title>Inactivation of Escherichia coli on anatase and rutile nanoparticles using UV and fluorescent light</title><author>Caratto, V. ; Aliakbarian, B. ; Casazza, A.A. ; Setti, L. ; Bernini, C. ; Perego, P. ; Ferretti, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c352t-2e540f49d8c4813edc38c0aaa9092f31d9cf33df5516d13b0ba142915cc2d283</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>60 APPLIED LIFE SCIENCES</topic><topic>A. Nanostructures</topic><topic>A. Oxides</topic><topic>C. Electron microscopy</topic><topic>C. X-ray diffraction</topic><topic>CATALYSTS</topic><topic>CRYSTALS</topic><topic>D. Catalytic properties</topic><topic>DEACTIVATION</topic><topic>DEPOSITS</topic><topic>EFFICIENCY</topic><topic>ESCHERICHIA COLI</topic><topic>FLUORESCENCE</topic><topic>INACTIVATION</topic><topic>IRRADIATION</topic><topic>MATERIALS SCIENCE</topic><topic>MIXTURES</topic><topic>NANOPARTICLES</topic><topic>NANOSCIENCE AND NANOTECHNOLOGY</topic><topic>NANOSTRUCTURES</topic><topic>PHOTOCATALYSIS</topic><topic>RUTILE</topic><topic>SCANNING ELECTRON MICROSCOPY</topic><topic>TITANIUM OXIDES</topic><topic>X-RAY DIFFRACTION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Caratto, V.</creatorcontrib><creatorcontrib>Aliakbarian, B.</creatorcontrib><creatorcontrib>Casazza, A.A.</creatorcontrib><creatorcontrib>Setti, L.</creatorcontrib><creatorcontrib>Bernini, C.</creatorcontrib><creatorcontrib>Perego, P.</creatorcontrib><creatorcontrib>Ferretti, M.</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Materials research bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Caratto, V.</au><au>Aliakbarian, B.</au><au>Casazza, A.A.</au><au>Setti, L.</au><au>Bernini, C.</au><au>Perego, P.</au><au>Ferretti, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Inactivation of Escherichia coli on anatase and rutile nanoparticles using UV and fluorescent light</atitle><jtitle>Materials research bulletin</jtitle><date>2013-06</date><risdate>2013</risdate><volume>48</volume><issue>6</issue><spage>2095</spage><epage>2101</epage><pages>2095-2101</pages><issn>0025-5408</issn><eissn>1873-4227</eissn><abstract>[Display omitted]
► Photocatalytic deactivation of Escherichia coli in presence of TiO2 nanoparticles ► The presence of catalyst is less important when the radiation is in the UV range ► Rutile has an higher efficiency respect to anatase under visible light.
The photocatalytic deactivation of Escherichia coli HB101 by two different structures of TiO2, rutile and anatase (used separately and in a 1:1 mixture), was examined.
The microorganism was deposited on a filter membrane containing 520mg/m2 of TiO2 and then irradiated by a neon lamp. In order to study the rate of deactivation of the microorganism we studied four different exposure times: 20, 40, 60 and 90min. The results showed that rutile has an antimicrobial activity higher than anatase, while the mixture had values near to the average between them in every condition. The highest difference in the inactivation capacity of the two structures is observable at shorter times. The effect of the different crystal phases was evaluated by Scanning Electron Microscopy.</abstract><cop>United States</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.materresbull.2013.02.024</doi><tpages>7</tpages></addata></record> |
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| subjects | 60 APPLIED LIFE SCIENCES A. Nanostructures A. Oxides C. Electron microscopy C. X-ray diffraction CATALYSTS CRYSTALS D. Catalytic properties DEACTIVATION DEPOSITS EFFICIENCY ESCHERICHIA COLI FLUORESCENCE INACTIVATION IRRADIATION MATERIALS SCIENCE MIXTURES NANOPARTICLES NANOSCIENCE AND NANOTECHNOLOGY NANOSTRUCTURES PHOTOCATALYSIS RUTILE SCANNING ELECTRON MICROSCOPY TITANIUM OXIDES X-RAY DIFFRACTION |
| title | Inactivation of Escherichia coli on anatase and rutile nanoparticles using UV and fluorescent light |
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