FTIR-ATR Characterization of Hydrogel, Polymer Films, Protein Immobilization and Benzotriazole Adsorption on Copper Surface
Plasma polymerization techniques were used to synthesize and deposit hydrogel on silicon (Si) substrate. Hydrogel is a network of polymer chains that are water-insoluble and has a high degree of flexibility. The various fields of applications of hydrogel include drug release, biosensors and tissue...
Main Author: | |
---|---|
Other Authors: | |
Format: | Others |
Language: | English |
Published: |
University of North Texas
2007
|
Subjects: | |
Online Access: | https://digital.library.unt.edu/ark:/67531/metadc5132/ |
id |
ndltd-unt.edu-info-ark-67531-metadc5132 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-unt.edu-info-ark-67531-metadc51322017-03-17T08:36:00Z FTIR-ATR Characterization of Hydrogel, Polymer Films, Protein Immobilization and Benzotriazole Adsorption on Copper Surface Pillai, Karthikeyan Hydrogel protein immobilization copper benzotriazole FTIR Colloids. Polymers. Thin films. Immobilized proteins. Adsorption. Copper. Plasma polymerization techniques were used to synthesize and deposit hydrogel on silicon (Si) substrate. Hydrogel is a network of polymer chains that are water-insoluble and has a high degree of flexibility. The various fields of applications of hydrogel include drug release, biosensors and tissue engineering etc. Hydrogel synthesized from different monomers possess a common property of moisture absorption. In this work two monomers were used namely 1-amino-2-propanol (1A2P) and 2(ethylamino)ethanol (2EAE) to produce polymer films deposited on Si ATR crystal. Their moisture uptake property was tested using FTIR-ATR technique. This was evident by the decrease in -OH band in increasing N2 purging time of the films. Secondly, two monomer compounds namely vinyl acetic acid and glycidyl methacrylate which have both amine and carboxylic groups are used as solid surface for the immobilization of bovine serum albumin (BSA). Pulsed plasma polymerization was used to polymerize these monomers with different duty cycles. Initial works in this field were all about protein surface adsorption. But more recently, the emphasis is on covalent bonding of protein on to the surface. This immobilization of protein on solid surface has a lot of applications in the field of biochemical studies. The polymerization of vinyl acetic acid and glycidyl methacrylate were shown as successful method to attach protein on them. Chemical mechanical polishing (CMP) of Cu is one of the processes in the integrated chips manufacturing industry. Benzotriazole is one of the constituents of this CMP slurry used as corrosion inhibitor for Cu. Benzotriazole (C6H5N3) is a nitrogen heterocyclic derivative having three nitrogen atoms, each with an unshared pair of electrons, forming five-membered ring structure. This molecule coordinates with Cu atoms by loosing a proton from one of its nitrogen atom and thereby forming a film which is polymeric in nature that prevents further oxidation of Cu. In this work, aqueous solution of BTA was used to study the adsorption characteristics on Cu when a Cu electrodeposited Si was immersed in to it. This study was performed using ATR-FTIR technique. The adsorption of BTA on Cu surface was evident by the presence of aryl C-H stretching band at 3061 cm-1. University of North Texas Chyan, Oliver M. R. Verbeck, Guido F. 2007-12 Thesis or Dissertation Text oclc: 228004794 https://digital.library.unt.edu/ark:/67531/metadc5132/ ark: ark:/67531/metadc5132 English Public Copyright Pati, Nishikanta Copyright is held by the author, unless otherwise noted. All rights reserved. |
collection |
NDLTD |
language |
English |
format |
Others
|
sources |
NDLTD |
topic |
Hydrogel protein immobilization copper benzotriazole FTIR Colloids. Polymers. Thin films. Immobilized proteins. Adsorption. Copper. |
spellingShingle |
Hydrogel protein immobilization copper benzotriazole FTIR Colloids. Polymers. Thin films. Immobilized proteins. Adsorption. Copper. Pillai, Karthikeyan FTIR-ATR Characterization of Hydrogel, Polymer Films, Protein Immobilization and Benzotriazole Adsorption on Copper Surface |
description |
Plasma polymerization techniques were used to synthesize and deposit hydrogel on silicon (Si) substrate. Hydrogel is a network of polymer chains that are water-insoluble and has a high degree of flexibility. The various fields of applications of hydrogel include drug release, biosensors and tissue engineering etc. Hydrogel synthesized from different monomers possess a common property of moisture absorption. In this work two monomers were used namely 1-amino-2-propanol (1A2P) and 2(ethylamino)ethanol (2EAE) to produce polymer films deposited on Si ATR crystal. Their moisture uptake property was tested using FTIR-ATR technique. This was evident by the decrease in -OH band in increasing N2 purging time of the films. Secondly, two monomer compounds namely vinyl acetic acid and glycidyl methacrylate which have both amine and carboxylic groups are used as solid surface for the immobilization of bovine serum albumin (BSA). Pulsed plasma polymerization was used to polymerize these monomers with different duty cycles. Initial works in this field were all about protein surface adsorption. But more recently, the emphasis is on covalent bonding of protein on to the surface. This immobilization of protein on solid surface has a lot of applications in the field of biochemical studies. The polymerization of vinyl acetic acid and glycidyl methacrylate were shown as successful method to attach protein on them. Chemical mechanical polishing (CMP) of Cu is one of the processes in the integrated chips manufacturing industry. Benzotriazole is one of the constituents of this CMP slurry used as corrosion inhibitor for Cu. Benzotriazole (C6H5N3) is a nitrogen heterocyclic derivative having three nitrogen atoms, each with an unshared pair of electrons, forming five-membered ring structure. This molecule coordinates with Cu atoms by loosing a proton from one of its nitrogen atom and thereby forming a film which is polymeric in nature that prevents further oxidation of Cu. In this work, aqueous solution of BTA was used to study the adsorption characteristics on Cu when a Cu electrodeposited Si was immersed in to it. This study was performed using ATR-FTIR technique. The adsorption of BTA on Cu surface was evident by the presence of aryl C-H stretching band at 3061 cm-1. |
author2 |
Chyan, Oliver M. R. |
author_facet |
Chyan, Oliver M. R. Pillai, Karthikeyan |
author |
Pillai, Karthikeyan |
author_sort |
Pillai, Karthikeyan |
title |
FTIR-ATR Characterization of Hydrogel, Polymer Films, Protein Immobilization and Benzotriazole Adsorption on Copper Surface |
title_short |
FTIR-ATR Characterization of Hydrogel, Polymer Films, Protein Immobilization and Benzotriazole Adsorption on Copper Surface |
title_full |
FTIR-ATR Characterization of Hydrogel, Polymer Films, Protein Immobilization and Benzotriazole Adsorption on Copper Surface |
title_fullStr |
FTIR-ATR Characterization of Hydrogel, Polymer Films, Protein Immobilization and Benzotriazole Adsorption on Copper Surface |
title_full_unstemmed |
FTIR-ATR Characterization of Hydrogel, Polymer Films, Protein Immobilization and Benzotriazole Adsorption on Copper Surface |
title_sort |
ftir-atr characterization of hydrogel, polymer films, protein immobilization and benzotriazole adsorption on copper surface |
publisher |
University of North Texas |
publishDate |
2007 |
url |
https://digital.library.unt.edu/ark:/67531/metadc5132/ |
work_keys_str_mv |
AT pillaikarthikeyan ftiratrcharacterizationofhydrogelpolymerfilmsproteinimmobilizationandbenzotriazoleadsorptiononcoppersurface |
_version_ |
1718429930702766080 |