Evaluation of Adhesion Forces for the Manipulation of Micro-Objects in Submerged Environment through Deposition of pH Responsive Polyelectrolyte Layers.
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| Title: | Evaluation of Adhesion Forces for the Manipulation of Micro-Objects in Submerged Environment through Deposition of pH Responsive Polyelectrolyte Layers. |
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| Authors: | Vrlinic, T.1, Buron, C. C.1 cedric.buron@univ-fcomte.fr, Lakard, S.1, Husson, J.1, Rougeot, P.2, Gauthier, M.2, Lakard, B.1 |
| Source: | Langmuir. Jan2016, Vol. 32 Issue 1, p102-111. 10p. |
| Subjects: | Polyelectrolytes, Adhesion, pH effect, Sulfonates, Quartz crystal microbalances, Silicon wafers |
| Abstract: | Optimization of surface treatment for reversible adhesion of micro-objects in liquid environment for the need in microassembly processes is presented. A spherical borosilicate probe and planar oxidized silicon wafer substrates were modified by deposition of pH sensitive polyelectrolyte films through layer-by-layer technique. Branched polyethylenimine (b-PEI) and poly(sodium styrenesulfonate) (PSS) were deposited in alternating manner on surfaces, and the influence of polyelectrolyte concentration, pH of deposition, and number of layers on the adhesion were successively examined. The multilayer buildup was followed by optical reflectometry (OR) and dissipative quartz crystal microbalance (QCM-D). The adhesion forces were monitored in aqueous environment at variable pH values by colloidal probe AFM microscopy. The thermodynamic work of adhesion was derived from the pull-off forces by using the Johnson-Kendall-Roberts (JKR) model and compared to the work of adhesion determined from contact angle measurements. It was found out that they correlate well, however, the values accessed from JKR model were underestimated, which was attributed mainly to the effect of surface roughness. Obtained results have demonstrated that it is possible to achieve repeatable reversible adhesion with the change of pH of submerged environment by appropriately tailoring the surface properties and therefore the prevailing surface forces. [ABSTRACT FROM AUTHOR] |
| Copyright of Langmuir is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 113340783 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Evaluation of Adhesion Forces for the Manipulation of Micro-Objects in Submerged Environment through Deposition of pH Responsive Polyelectrolyte Layers. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Vrlinic%2C+T%2E%22">Vrlinic, T.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Buron%2C+C%2E+C%2E%22">Buron, C. C.</searchLink><relatesTo>1</relatesTo><i> cedric.buron@univ-fcomte.fr</i><br /><searchLink fieldCode="AR" term="%22Lakard%2C+S%2E%22">Lakard, S.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Husson%2C+J%2E%22">Husson, J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rougeot%2C+P%2E%22">Rougeot, P.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Gauthier%2C+M%2E%22">Gauthier, M.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Lakard%2C+B%2E%22">Lakard, B.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Langmuir%22">Langmuir</searchLink>. Jan2016, Vol. 32 Issue 1, p102-111. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Polyelectrolytes%22">Polyelectrolytes</searchLink><br /><searchLink fieldCode="DE" term="%22Adhesion%22">Adhesion</searchLink><br /><searchLink fieldCode="DE" term="%22pH+effect%22">pH effect</searchLink><br /><searchLink fieldCode="DE" term="%22Sulfonates%22">Sulfonates</searchLink><br /><searchLink fieldCode="DE" term="%22Quartz+crystal+microbalances%22">Quartz crystal microbalances</searchLink><br /><searchLink fieldCode="DE" term="%22Silicon+wafers%22">Silicon wafers</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Optimization of surface treatment for reversible adhesion of micro-objects in liquid environment for the need in microassembly processes is presented. A spherical borosilicate probe and planar oxidized silicon wafer substrates were modified by deposition of pH sensitive polyelectrolyte films through layer-by-layer technique. Branched polyethylenimine (b-PEI) and poly(sodium styrenesulfonate) (PSS) were deposited in alternating manner on surfaces, and the influence of polyelectrolyte concentration, pH of deposition, and number of layers on the adhesion were successively examined. The multilayer buildup was followed by optical reflectometry (OR) and dissipative quartz crystal microbalance (QCM-D). The adhesion forces were monitored in aqueous environment at variable pH values by colloidal probe AFM microscopy. The thermodynamic work of adhesion was derived from the pull-off forces by using the Johnson-Kendall-Roberts (JKR) model and compared to the work of adhesion determined from contact angle measurements. It was found out that they correlate well, however, the values accessed from JKR model were underestimated, which was attributed mainly to the effect of surface roughness. Obtained results have demonstrated that it is possible to achieve repeatable reversible adhesion with the change of pH of submerged environment by appropriately tailoring the surface properties and therefore the prevailing surface forces. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Langmuir is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1021/acs.langmuir.5b03575 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 102 Subjects: – SubjectFull: Polyelectrolytes Type: general – SubjectFull: Adhesion Type: general – SubjectFull: pH effect Type: general – SubjectFull: Sulfonates Type: general – SubjectFull: Quartz crystal microbalances Type: general – SubjectFull: Silicon wafers Type: general Titles: – TitleFull: Evaluation of Adhesion Forces for the Manipulation of Micro-Objects in Submerged Environment through Deposition of pH Responsive Polyelectrolyte Layers. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Vrlinic, T. – PersonEntity: Name: NameFull: Buron, C. C. – PersonEntity: Name: NameFull: Lakard, S. – PersonEntity: Name: NameFull: Husson, J. – PersonEntity: Name: NameFull: Rougeot, P. – PersonEntity: Name: NameFull: Gauthier, M. – PersonEntity: Name: NameFull: Lakard, B. IsPartOfRelationships: – BibEntity: Dates: – D: 12 M: 01 Text: Jan2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 07437463 Numbering: – Type: volume Value: 32 – Type: issue Value: 1 Titles: – TitleFull: Langmuir Type: main |
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