Porcine gastric mucin (PGM) at the water/poly(dimethylsiloxane) (PDMS) interface : influence of pH and ionic strength on its conformation, adsorption, and aqueous lubrication properties

We have investigated the influence of pH and ionic strength on the conformation of porcine gastric mucin (PGM) in bulk aqueous solution, its adsorption behavior onto poly(dimethylsiloxane) (PDMS) surfaces, and its lubricating behavior upon the self-mated sliding contact of a PDMS tribopair by means...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 21(2005), 18 vom: 30. Aug., Seite 8344-53
1. Verfasser: Lee, Seunghwan (VerfasserIn)
Weitere Verfasser: Müller, Markus, Rezwan, Kurosch, Spencer, Nicholas D
Format: Aufsatz
Sprache:English
Veröffentlicht: 2005
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Dimethylpolysiloxanes Gastric Mucins Solutions Water 059QF0KO0R Polyethylene Glycols 3WJQ0SDW1A mehr... Hyaluronic Acid 9004-61-9 Oxygen S88TT14065
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100 1 |a Lee, Seunghwan  |e verfasserin  |4 aut 
245 1 0 |a Porcine gastric mucin (PGM) at the water/poly(dimethylsiloxane) (PDMS) interface  |b influence of pH and ionic strength on its conformation, adsorption, and aqueous lubrication properties 
264 1 |c 2005 
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500 |a Date Revised 08.04.2022 
500 |a published: Print 
500 |a Citation Status MEDLINE 
520 |a We have investigated the influence of pH and ionic strength on the conformation of porcine gastric mucin (PGM) in bulk aqueous solution, its adsorption behavior onto poly(dimethylsiloxane) (PDMS) surfaces, and its lubricating behavior upon the self-mated sliding contact of a PDMS tribopair by means of circular dichroism (CD) spectroscopy, optical waveguide lightmode spectroscopy (OWLS), and pin-on-disk tribometry, respectively. In a low-concentration regime (1 mg/mL), where the formation of a mucus-gel is generally excluded, PGM is still observed to exhibit effective aqueous lubricating properties under specific conditions of acidic pH and low ionic strength. This behavior was closely correlated with specific conformations in the bulk solution as well as specific adsorption behavior at the water/PDMS interface. The lubrication mechanism of the self-mated sliding contact of PDMS by means of surface modification with PGM is discussed in terms of isoviscous-elastic/soft-elastohydrodynamic lubrication (soft-EHL) 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
650 7 |a Dimethylpolysiloxanes  |2 NLM 
650 7 |a Gastric Mucins  |2 NLM 
650 7 |a Solutions  |2 NLM 
650 7 |a Water  |2 NLM 
650 7 |a 059QF0KO0R  |2 NLM 
650 7 |a Polyethylene Glycols  |2 NLM 
650 7 |a 3WJQ0SDW1A  |2 NLM 
650 7 |a Hyaluronic Acid  |2 NLM 
650 7 |a 9004-61-9  |2 NLM 
650 7 |a Oxygen  |2 NLM 
650 7 |a S88TT14065  |2 NLM 
700 1 |a Müller, Markus  |e verfasserin  |4 aut 
700 1 |a Rezwan, Kurosch  |e verfasserin  |4 aut 
700 1 |a Spencer, Nicholas D  |e verfasserin  |4 aut 
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