Latex of immunodiagnosis for detecting the Chagas disease: II. Chemical coupling of antigen Ag36 onto carboxylated latexes

A novel immunodiagnosis reagent for detecting the Chagas Disease was developed, by chemical coupling of antigen Ag36 of Trypanosoma cruzi onto two (carboxylated and core-shell) latexes. The coupling reactions involved the use of a carbodiimide intermediate. Bovine serum albumin (BSA) was used as a m...

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Veröffentlicht in:Journal of materials science. Materials in medicine 2008-02, Vol.19 (2), p.789-795
Hauptverfasser: Gonzalez, Verónica D. G., Gugliotta, Luis M., Giacomelli, Carla E., Meira, Gregorio R.
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container_title Journal of materials science. Materials in medicine
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creator Gonzalez, Verónica D. G.
Gugliotta, Luis M.
Giacomelli, Carla E.
Meira, Gregorio R.
description A novel immunodiagnosis reagent for detecting the Chagas Disease was developed, by chemical coupling of antigen Ag36 of Trypanosoma cruzi onto two (carboxylated and core-shell) latexes. The coupling reactions involved the use of a carbodiimide intermediate. Bovine serum albumin (BSA) was used as a model protein for determining the appropriate conditions for its physical and chemical coupling. BSA showed an increased adsorption onto the base carboxylated latexes, with respect to a PS latex without carboxyl groups. The chemical bonding experiments only involved the carboxylated latexes. With BSA, the final density of covalently bound protein was 2.30 mg/m 2 . In addition, around 55% of the total linked protein was chemically coupled, and the reaction was little affected by the pH. With Ag36, the final density of covalently bound protein was 2.44 mg/m 2 , around 80% of the total linked protein was chemically coupled, and the chemical coupling was maximum at pH = 5 (i.e., close to the isoelectric point).
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Materials in medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gonzalez, Verónica D. G.</au><au>Gugliotta, Luis M.</au><au>Giacomelli, Carla E.</au><au>Meira, Gregorio R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Latex of immunodiagnosis for detecting the Chagas disease: II. Chemical coupling of antigen Ag36 onto carboxylated latexes</atitle><jtitle>Journal of materials science. Materials in medicine</jtitle><stitle>J Mater Sci: Mater Med</stitle><addtitle>J Mater Sci Mater Med</addtitle><date>2008-02-01</date><risdate>2008</risdate><volume>19</volume><issue>2</issue><spage>789</spage><epage>795</epage><pages>789-795</pages><issn>0957-4530</issn><eissn>1573-4838</eissn><abstract>A novel immunodiagnosis reagent for detecting the Chagas Disease was developed, by chemical coupling of antigen Ag36 of Trypanosoma cruzi onto two (carboxylated and core-shell) latexes. The coupling reactions involved the use of a carbodiimide intermediate. Bovine serum albumin (BSA) was used as a model protein for determining the appropriate conditions for its physical and chemical coupling. BSA showed an increased adsorption onto the base carboxylated latexes, with respect to a PS latex without carboxyl groups. The chemical bonding experiments only involved the carboxylated latexes. With BSA, the final density of covalently bound protein was 2.30 mg/m 2 . In addition, around 55% of the total linked protein was chemically coupled, and the reaction was little affected by the pH. With Ag36, the final density of covalently bound protein was 2.44 mg/m 2 , around 80% of the total linked protein was chemically coupled, and the chemical coupling was maximum at pH = 5 (i.e., close to the isoelectric point).</abstract><cop>Boston</cop><pub>Springer US</pub><pmid>17665133</pmid><doi>10.1007/s10856-006-0041-x</doi><tpages>7</tpages></addata></record>
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subjects Animals
Antibodies, Protozoan - chemistry
Antibodies, Protozoan - immunology
Antigens
Antigens, Protozoan - chemistry
Biomaterials
Biomedical Engineering and Bioengineering
Biomedical materials
Carboxylated
Ceramics
Chagas Disease - diagnosis
Chemistry and Materials Science
Composites
Covalence
Density
Disease
Glass
Humans
Immunoassay - instrumentation
Immunologic Tests
Joining
Latex
Latex - chemical synthesis
Materials Science
Materials Testing
Medical diagnosis
Natural Materials
Polymer Sciences
Proteins
Regenerative Medicine/Tissue Engineering
Serum Albumin, Bovine - chemistry
Studies
Surfaces and Interfaces
Thin Films
Trypanosoma cruzi
Trypanosoma cruzi - immunology
title Latex of immunodiagnosis for detecting the Chagas disease: II. Chemical coupling of antigen Ag36 onto carboxylated latexes
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