Nanoscale wetting and fouling resistance of functionalized surfaces : a computational approach

A computational modeling methodology has been developed and employed to characterize the nanoscale wettability and antifouling properties of functionalized hard and deformable surfaces, with a specific focus on poly(ethylene glycol) grafted substrates and their resistance to graphitic carbons. Empir...

Ausführliche Beschreibung

Bibliographische Detailangaben
Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 30(2014), 35 vom: 09. Sept., Seite 10617-25
1. Verfasser: Yiapanis, George (VerfasserIn)
Weitere Verfasser: Maclaughlin, Shane, Evans, Evan J, Yarovsky, Irene
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
LEADER 01000naa a22002652 4500
001 NLM241148170
003 DE-627
005 20231224123624.0
007 cr uuu---uuuuu
008 231224s2014 xx |||||o 00| ||eng c
024 7 |a 10.1021/la500114k  |2 doi 
028 5 2 |a pubmed24n0803.xml 
035 |a (DE-627)NLM241148170 
035 |a (NLM)25141225 
040 |a DE-627  |b ger  |c DE-627  |e rakwb 
041 |a eng 
100 1 |a Yiapanis, George  |e verfasserin  |4 aut 
245 1 0 |a Nanoscale wetting and fouling resistance of functionalized surfaces  |b a computational approach 
264 1 |c 2014 
336 |a Text  |b txt  |2 rdacontent 
337 |a ƒaComputermedien  |b c  |2 rdamedia 
338 |a ƒa Online-Ressource  |b cr  |2 rdacarrier 
500 |a Date Completed 15.05.2015 
500 |a Date Revised 09.09.2014 
500 |a published: Print-Electronic 
500 |a Citation Status PubMed-not-MEDLINE 
520 |a A computational modeling methodology has been developed and employed to characterize the nanoscale wettability and antifouling properties of functionalized hard and deformable surfaces, with a specific focus on poly(ethylene glycol) grafted substrates and their resistance to graphitic carbons. Empirical evidence suggests that the antifouling behavior of polyethylene PEG is associated with two main mechanisms: steric repulsions and hydration via formation of a structured water layer. However, there is also little attention paid to the contribution of steric repulsion vs surface hydration. We examine these two mechanisms through a combination of in silico contact angle and force measurements at the nanoscale level. We investigate the properties of the grafted functional chains and the underlying substrate, responsible for resisting surface deposition of graphitic contaminants in aqueous solution. Our results reveal that the fouling-release efficiency is enhanced when PEG chains are grafted onto hard hydrophilic substrates such as silica in contrast to deformable polymer substrates where surface modifications are effectively mitigated during interfacial contact with a hard contaminant. We conclude that the contribution of steric repulsion vs surface hydration to the antifouling ability of surfaces is strongly dependent on the nanoscale structure and deformability of the substrate. This generic method can be applied to examine individual contribution of steric repulsions and surface hydration to antifouling performance of grafted chains 
650 4 |a Journal Article 
700 1 |a Maclaughlin, Shane  |e verfasserin  |4 aut 
700 1 |a Evans, Evan J  |e verfasserin  |4 aut 
700 1 |a Yarovsky, Irene  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Langmuir : the ACS journal of surfaces and colloids  |d 1992  |g 30(2014), 35 vom: 09. Sept., Seite 10617-25  |w (DE-627)NLM098181009  |x 1520-5827  |7 nnns 
773 1 8 |g volume:30  |g year:2014  |g number:35  |g day:09  |g month:09  |g pages:10617-25 
856 4 0 |u http://dx.doi.org/10.1021/la500114k  |3 Volltext 
912 |a GBV_USEFLAG_A 
912 |a SYSFLAG_A 
912 |a GBV_NLM 
912 |a GBV_ILN_22 
912 |a GBV_ILN_350 
912 |a GBV_ILN_721 
951 |a AR 
952 |d 30  |j 2014  |e 35  |b 09  |c 09  |h 10617-25