Degradation of polydopamine coatings by sodium hypochlorite: A process depending on the substrate and the film synthesis method
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Abstract
Polydopamine coatings are promising new versatile coatings able to be deposited on almost all kinds of materials. Such films synthesized either by oxygenation or by electrochemistry on indium tin oxide (ITO) and glassy carbon substrates, were degraded by an oxidizing sodium hypochlorite solution. Films were successively immersed in a sodium hypochlorite solution (1 g/L) during different times. The characterizations of film degradation were made by XPS spectroscopy and AFM. They confirmed a homogeneous degradation of polydopamine, due to an oxidation reaction. The influence of the synthesis method and the nature of the substrate on the polydopamine degradation were also studied in this paper: coatings deposited on ITO by oxygenation degrade much faster than those deposited on glassy carbon or by electrochemistry. This suggests that the adhesion of the polydopamine films and their stability is markedly dependant on the used substrate (ITO vs. glassy carbon) as well as on the deposition method (oxygenation vs. electrochemistry), whereas the film thickness reached during deposition is almost substrate independent.
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Such films synthesized either by oxygenation or by electrochemistry on indium tin oxide (ITO) and glassy carbon substrates, were degraded by an oxidizing sodium hypochlorite solution. Films were successively immersed in a sodium hypochlorite solution (1 g/L) during different times. The characterizations of film degradation were made by XPS spectroscopy and AFM. They confirmed a homogeneous degradation of polydopamine, due to an oxidation reaction. The influence of the synthesis method and the nature of the substrate on the polydopamine degradation were also studied in this paper: coatings deposited on ITO by oxygenation degrade much faster than those deposited on glassy carbon or by electrochemistry. This suggests that the adhesion of the polydopamine films and their stability is markedly dependant on the used substrate (ITO vs. glassy carbon) as well as on the deposition method (oxygenation vs. electrochemistry), whereas the film thickness reached during deposition is almost substrate independent.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0141-3910</s0></fA01><fA02 i1="01"><s0>PDSTDW</s0></fA02><fA03 i2="1"><s0>Polym. degrad. stab.</s0></fA03><fA05><s2>97</s2></fA05><fA06><s2>9</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Degradation of polydopamine coatings by sodium hypochlorite: A process depending on the substrate and the film synthesis method</s1></fA08><fA11 i1="01" i2="1"><s1>DEL FRARI (Doriane)</s1></fA11><fA11 i1="02" i2="1"><s1>BOUR (Jérôme)</s1></fA11><fA11 i1="03" i2="1"><s1>BALL (Vincent)</s1></fA11><fA11 i1="04" i2="1"><s1>TONIAZZO (Valérie)</s1></fA11><fA11 i1="05" i2="1"><s1>RUCH (David)</s1></fA11><fA14 i1="01"><s1>Centre de Recherche Public Henri Tudor, Department of Advanced Materials and Structures, 66, rue de Luxembourg</s1><s2>4002 Esch-sur-Alzette</s2><s3>LUX</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></fA14><fA20><s1>1844-1849</s1></fA20><fA21><s1>2012</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>18819</s2><s5>354000500884190360</s5></fA43><fA44><s0>0000</s0><s1>© 2013 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>18 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>13-0064795</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Polymer degradation and stability</s0></fA64><fA66 i1="01"><s0>GBR</s0></fA66><fC01 i1="01" l="ENG"><s0>Polydopamine coatings are promising new versatile coatings able to be deposited on almost all kinds of materials. Such films synthesized either by oxygenation or by electrochemistry on indium tin oxide (ITO) and glassy carbon substrates, were degraded by an oxidizing sodium hypochlorite solution. Films were successively immersed in a sodium hypochlorite solution (1 g/L) during different times. The characterizations of film degradation were made by XPS spectroscopy and AFM. They confirmed a homogeneous degradation of polydopamine, due to an oxidation reaction. The influence of the synthesis method and the nature of the substrate on the polydopamine degradation were also studied in this paper: coatings deposited on ITO by oxygenation degrade much faster than those deposited on glassy carbon or by electrochemistry. This suggests that the adhesion of the polydopamine films and their stability is markedly dependant on the used substrate (ITO vs. glassy carbon) as well as on the deposition method (oxygenation vs. electrochemistry), whereas the film thickness reached during deposition is almost substrate independent.</s0></fC01><fC02 i1="01" i2="X"><s0>001D09</s0></fC02><fC02 i1="02" i2="X"><s0>001D10A</s0></fC02><fC03 i1="01" i2="X" l="FRE"><s0>Matériau revêtement</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="ENG"><s0>Coating material</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="SPA"><s0>Material revestimiento</s0><s5>01</s5></fC03><fC03 i1="02" i2="X" l="FRE"><s0>Préparation</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="ENG"><s0>Preparation</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="SPA"><s0>Preparación</s0><s5>02</s5></fC03><fC03 i1="03" i2="X" l="FRE"><s0>Oxyde d'étain</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="ENG"><s0>Tin oxide</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="SPA"><s0>Estaño óxido</s0><s5>03</s5></fC03><fC03 i1="04" i2="X" l="FRE"><s0>Oxydation</s0><s5>04</s5></fC03><fC03 i1="04" i2="X" l="ENG"><s0>Oxidation</s0><s5>04</s5></fC03><fC03 i1="04" i2="X" l="SPA"><s0>Oxidación</s0><s5>04</s5></fC03><fC03 i1="05" i2="X" l="FRE"><s0>Adhérence</s0><s5>05</s5></fC03><fC03 i1="05" i2="X" l="ENG"><s0>Adhesion</s0><s5>05</s5></fC03><fC03 i1="05" i2="X" l="SPA"><s0>Adherencia</s0><s5>05</s5></fC03><fC03 i1="06" i2="X" l="FRE"><s0>Polymérisation électrolytique</s0><s5>06</s5></fC03><fC03 i1="06" i2="X" l="ENG"><s0>Electrochemical polymerization</s0><s5>06</s5></fC03><fC03 i1="06" i2="X" l="SPA"><s0>Polimerización electrolítica</s0><s5>06</s5></fC03><fC03 i1="07" i2="X" l="FRE"><s0>Polymère</s0><s5>07</s5></fC03><fC03 i1="07" i2="X" l="ENG"><s0>Polymer</s0><s5>07</s5></fC03><fC03 i1="07" i2="X" l="SPA"><s0>Polímero</s0><s5>07</s5></fC03><fN21><s1>042</s1></fN21><fN44 i1="01"><s1>OTO</s1></fN44><fN82><s1>OTO</s1></fN82></pA></standard></inist></record>Pour manipuler ce document sous Unix (Dilib)
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