2003
DOI: 10.1016/s0003-2670(02)01037-1
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Synthesis of haptens for immunoassay of organophosphorus pesticides and effect of heterology in hapten spacer arm length on immunoassay sensitivity

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Cited by 128 publications
(65 citation statements)
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“…From this perspective, this study chose OVA as the coating antigen carrier protein, meanwhile compared with other alternative carrier proteins, OVA also has the advantage of low price. 34 In the present study conjugates use NHS or isobutyl chloroformate as the "bridge" between the hapten and the carrier protein, because on one hand this can prevent the coupled hapten and macromolecular carrier protein being embedded in the bending and cavated molecular structure, and on the other hand the immune activity of the-(GHz) n -chain is low, after immunizing the animals the lymphocyte could secret the structure specific antibody to OLA, which is expected to preparing the high selectivity OLA polyclonal antibodies whose affinity to the spacer is low. 35 Situ adapted the synthesis method developed by McCaughey 34 to couple the bovine thyroxin protein and OLA together to prepare the OLA polyclonal antibody.…”
Section: Discussionmentioning
confidence: 99%
“…From this perspective, this study chose OVA as the coating antigen carrier protein, meanwhile compared with other alternative carrier proteins, OVA also has the advantage of low price. 34 In the present study conjugates use NHS or isobutyl chloroformate as the "bridge" between the hapten and the carrier protein, because on one hand this can prevent the coupled hapten and macromolecular carrier protein being embedded in the bending and cavated molecular structure, and on the other hand the immune activity of the-(GHz) n -chain is low, after immunizing the animals the lymphocyte could secret the structure specific antibody to OLA, which is expected to preparing the high selectivity OLA polyclonal antibodies whose affinity to the spacer is low. 35 Situ adapted the synthesis method developed by McCaughey 34 to couple the bovine thyroxin protein and OLA together to prepare the OLA polyclonal antibody.…”
Section: Discussionmentioning
confidence: 99%
“…Researchers have evaluated the effect on antibody production in respect to the heterology of spacer arm length. In general, it has been observed that spacer arm length of four atoms or more appears to have no or little effect on antigen recognition [11,12]. But heterology in the spacer arm structure of the coating antigen has produced remarkable improvement in a number of enzyme-linked immunosorbent assays (ELISAs) [12][13][14][15].…”
Section: Introductionmentioning
confidence: 99%
“…El ELISA desarrollado para la determinación de residuos de fentión presenta mayor sensibilidad que los ensayos en placa descritos a la vez en la bibliografía por Kim et al (294,295). Esta mejora podría deberse a la diferencia entre los haptenos utilizadosconjugación a proteína via grupo alcohol para obtener el inmunógeno y mayor heterología con el hapteno de tapizado que carece del grupo tiofosfato-.…”
Section: Tabla 23 Condiciones De Trabajo óPtimas De Los Elisasunclassified
“…Recientemente, Zhang et al (296) han descrito otro ELISA para fentión ligeramente menos sensible (IC 50 de 0,08 ng/mL) inmunizando con un hapteno que posee el brazo espaciador unido al anillo aromático por la posición del átomo de azufre (careciendo de este elemento); como hapteno de tapizado usan uno de los descritos previamente por Kim et al (294). Meses después, estos mismos autores han mejorado las prestaciones del inmunoensayo (297) utilizando una nueva combinación de haptenos de inmunización -con el brazo espaciador unido al anillo aromático-y de tapizado -con el brazo espaciador en el grupo tiofosfato-, obteniendo una IC 50 de 0,01 ng/mL.…”
Section: Tabla 23 Condiciones De Trabajo óPtimas De Los Elisasunclassified
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