Surface-functionalization effects on uptake of fluorescent polystyrene nanoparticles by model biofilms
A study was conducted to investigate the role of nanoparticle (NP) surface functionalization/charge on their uptake by biofilms. Biofilms, bacterial colonies attached to surfaces via extracellular polymers, are effective at removing suspended nanomaterials from the aqueous phase. However, the mechan...
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| Veröffentlicht in: | Ecotoxicology (London) 2012-11, Vol.21 (8), p.2205-2213 |
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| creator | Nevius, Brian A. Chen, Yung Pin Ferry, John L. Decho, Alan W. |
| description | A study was conducted to investigate the role of nanoparticle (NP) surface functionalization/charge on their uptake by biofilms. Biofilms, bacterial colonies attached to surfaces via extracellular polymers, are effective at removing suspended nanomaterials from the aqueous phase. However, the mechanisms regulating particle uptake are unknown. Here, it was shown that the mechanism was strongly dependent on the nanoparticle surface ionization, and not the core composition of the NP. Uptake experiments were conducted using laboratory-cultured biofilms. The biofilms were incubated in the presence of fluorescent polystyrene NPs with either negatively-charged surfaces (i.e. functionalized with sulfated (SO
4
−
-NP) or carboxylated (COO
−
-NP) groups) or positively-charged surfaces (functionalized with primary amines, Amine-P). Particles with negatively-charged sulfated surfaces associated most strongly to biofilms across all experimental conditions. Associations of positively-charged amine particles with biofilms were greatest at high ionic conditions resembling those of seawater, but were sensitive to changes in ionic strength. Sorption of COO
−
-NPs was lowest, relative to other particle types, and was not sensitive to ionic strength. The results of this study support an emerging precedent that biofilms may be an effective player in the binding and sequestration of nanoparticles in aqueous systems. |
| doi_str_mv | 10.1007/s10646-012-0975-3 |
| format | Article |
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4
−
-NP) or carboxylated (COO
−
-NP) groups) or positively-charged surfaces (functionalized with primary amines, Amine-P). Particles with negatively-charged sulfated surfaces associated most strongly to biofilms across all experimental conditions. Associations of positively-charged amine particles with biofilms were greatest at high ionic conditions resembling those of seawater, but were sensitive to changes in ionic strength. Sorption of COO
−
-NPs was lowest, relative to other particle types, and was not sensitive to ionic strength. The results of this study support an emerging precedent that biofilms may be an effective player in the binding and sequestration of nanoparticles in aqueous systems.</description><identifier>ISSN: 0963-9292</identifier><identifier>EISSN: 1573-3017</identifier><identifier>DOI: 10.1007/s10646-012-0975-3</identifier><identifier>PMID: 22806556</identifier><identifier>CODEN: ECOTEL</identifier><language>eng</language><publisher>Boston: Springer US</publisher><subject>Adsorption ; Alteromonas - physiology ; Amines ; Biofilms ; Chemical analysis ; Earth and Environmental Science ; Ecology ; Ecotoxicology ; Environment ; Environmental Management ; Ionization ; Nanoparticles ; Nanoparticles - chemistry ; Nanotechnology ; Polymers ; Polystyrene ; Polystyrenes - chemistry ; Polystyrenes - metabolism ; Seawater ; Surface Properties ; Time Factors ; Water - chemistry ; Water analysis</subject><ispartof>Ecotoxicology (London), 2012-11, Vol.21 (8), p.2205-2213</ispartof><rights>Springer Science+Business Media, LLC 2012</rights><rights>COPYRIGHT 2012 Springer</rights><rights>Springer Science+Business Media New York 2012</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c378t-587b83ddc486299d01f308d40d333f4e4689472025a2c646d323d667ab49b0c03</citedby><cites>FETCH-LOGICAL-c378t-587b83ddc486299d01f308d40d333f4e4689472025a2c646d323d667ab49b0c03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10646-012-0975-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10646-012-0975-3$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22806556$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Nevius, Brian A.</creatorcontrib><creatorcontrib>Chen, Yung Pin</creatorcontrib><creatorcontrib>Ferry, John L.</creatorcontrib><creatorcontrib>Decho, Alan W.</creatorcontrib><title>Surface-functionalization effects on uptake of fluorescent polystyrene nanoparticles by model biofilms</title><title>Ecotoxicology (London)</title><addtitle>Ecotoxicology</addtitle><addtitle>Ecotoxicology</addtitle><description>A study was conducted to investigate the role of nanoparticle (NP) surface functionalization/charge on their uptake by biofilms. Biofilms, bacterial colonies attached to surfaces via extracellular polymers, are effective at removing suspended nanomaterials from the aqueous phase. However, the mechanisms regulating particle uptake are unknown. Here, it was shown that the mechanism was strongly dependent on the nanoparticle surface ionization, and not the core composition of the NP. Uptake experiments were conducted using laboratory-cultured biofilms. The biofilms were incubated in the presence of fluorescent polystyrene NPs with either negatively-charged surfaces (i.e. functionalized with sulfated (SO
4
−
-NP) or carboxylated (COO
−
-NP) groups) or positively-charged surfaces (functionalized with primary amines, Amine-P). Particles with negatively-charged sulfated surfaces associated most strongly to biofilms across all experimental conditions. Associations of positively-charged amine particles with biofilms were greatest at high ionic conditions resembling those of seawater, but were sensitive to changes in ionic strength. Sorption of COO
−
-NPs was lowest, relative to other particle types, and was not sensitive to ionic strength. The results of this study support an emerging precedent that biofilms may be an effective player in the binding and sequestration of nanoparticles in aqueous systems.</description><subject>Adsorption</subject><subject>Alteromonas - physiology</subject><subject>Amines</subject><subject>Biofilms</subject><subject>Chemical analysis</subject><subject>Earth and Environmental Science</subject><subject>Ecology</subject><subject>Ecotoxicology</subject><subject>Environment</subject><subject>Environmental Management</subject><subject>Ionization</subject><subject>Nanoparticles</subject><subject>Nanoparticles - chemistry</subject><subject>Nanotechnology</subject><subject>Polymers</subject><subject>Polystyrene</subject><subject>Polystyrenes - chemistry</subject><subject>Polystyrenes - metabolism</subject><subject>Seawater</subject><subject>Surface Properties</subject><subject>Time Factors</subject><subject>Water - chemistry</subject><subject>Water 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effects on uptake of fluorescent polystyrene nanoparticles by model biofilms</title><author>Nevius, Brian A. ; Chen, Yung Pin ; Ferry, John L. ; Decho, Alan W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c378t-587b83ddc486299d01f308d40d333f4e4689472025a2c646d323d667ab49b0c03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Adsorption</topic><topic>Alteromonas - physiology</topic><topic>Amines</topic><topic>Biofilms</topic><topic>Chemical analysis</topic><topic>Earth and Environmental Science</topic><topic>Ecology</topic><topic>Ecotoxicology</topic><topic>Environment</topic><topic>Environmental Management</topic><topic>Ionization</topic><topic>Nanoparticles</topic><topic>Nanoparticles - chemistry</topic><topic>Nanotechnology</topic><topic>Polymers</topic><topic>Polystyrene</topic><topic>Polystyrenes - chemistry</topic><topic>Polystyrenes - 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Abstracts</collection><jtitle>Ecotoxicology (London)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nevius, Brian A.</au><au>Chen, Yung Pin</au><au>Ferry, John L.</au><au>Decho, Alan W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Surface-functionalization effects on uptake of fluorescent polystyrene nanoparticles by model biofilms</atitle><jtitle>Ecotoxicology (London)</jtitle><stitle>Ecotoxicology</stitle><addtitle>Ecotoxicology</addtitle><date>2012-11-01</date><risdate>2012</risdate><volume>21</volume><issue>8</issue><spage>2205</spage><epage>2213</epage><pages>2205-2213</pages><issn>0963-9292</issn><eissn>1573-3017</eissn><coden>ECOTEL</coden><abstract>A study was conducted to investigate the role of nanoparticle (NP) surface functionalization/charge on their uptake by biofilms. Biofilms, bacterial colonies attached to surfaces via extracellular polymers, are effective at removing suspended nanomaterials from the aqueous phase. However, the mechanisms regulating particle uptake are unknown. Here, it was shown that the mechanism was strongly dependent on the nanoparticle surface ionization, and not the core composition of the NP. Uptake experiments were conducted using laboratory-cultured biofilms. The biofilms were incubated in the presence of fluorescent polystyrene NPs with either negatively-charged surfaces (i.e. functionalized with sulfated (SO
4
−
-NP) or carboxylated (COO
−
-NP) groups) or positively-charged surfaces (functionalized with primary amines, Amine-P). Particles with negatively-charged sulfated surfaces associated most strongly to biofilms across all experimental conditions. Associations of positively-charged amine particles with biofilms were greatest at high ionic conditions resembling those of seawater, but were sensitive to changes in ionic strength. Sorption of COO
−
-NPs was lowest, relative to other particle types, and was not sensitive to ionic strength. The results of this study support an emerging precedent that biofilms may be an effective player in the binding and sequestration of nanoparticles in aqueous systems.</abstract><cop>Boston</cop><pub>Springer US</pub><pmid>22806556</pmid><doi>10.1007/s10646-012-0975-3</doi><tpages>9</tpages></addata></record> |
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| subjects | Adsorption Alteromonas - physiology Amines Biofilms Chemical analysis Earth and Environmental Science Ecology Ecotoxicology Environment Environmental Management Ionization Nanoparticles Nanoparticles - chemistry Nanotechnology Polymers Polystyrene Polystyrenes - chemistry Polystyrenes - metabolism Seawater Surface Properties Time Factors Water - chemistry Water analysis |
| title | Surface-functionalization effects on uptake of fluorescent polystyrene nanoparticles by model biofilms |
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