Streptavidin-Coated Au Nanoparticles Coupled with Biotinylated Antibody-Based Bifunctional Linkers as Plasmon-Enhanced Immunobiosensors
DC Field | Value | Language |
---|---|---|
dc.contributor.author | You, Youngsang | - |
dc.contributor.author | Lim, Seokwon | - |
dc.contributor.author | Gunasekaran, Sundaram | - |
dc.date.available | 2020-10-20T06:42:52Z | - |
dc.date.created | 2020-06-10 | - |
dc.date.issued | 2020-02 | - |
dc.identifier.issn | 2574-0970 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/78508 | - |
dc.description.abstract | The localized surface plasmon resonance (LSPR) effect of aggregating gold nanoparticles (AuNPs) has facilitated the development of colorimetric biosensors that can potentially be employed on site. We have developed an effective strategy to enhance the LSPR color-change signal by decoupling target detection and signal generation steps during immunobiosensing. The biosensor consists of streptavidin-coated AuNPs coupled with biotinylated antibacteria antibody as bifunctional linkers (BLs). While a BL can function both as an immunoreactor to bind to the target and as a cross-linker to aggregate AuNPs, its cross-linking function is largely limited when it binds with the target. We investigated the effect of number density (D-n) of AuNPs on the LSPR signal enhancement and the attendant improvement in detection sensitivity and rapidity of our biosensor by changing the particle size (5 to 50 nm diameter) when holding the absorbance of the AuNPs solution constant (Abs = 0.4 at 10x dilution). The performance enhancement of the biosensor was demonstrated by detecting a model target, streptavidin, and two bacteria, Escherichia coli and Legionella pneumophila. The results show that when Abs is held constant, the systems with lower D-n but larger particles perform better. Therefore, our visual biosensing system can be suitably composed to maximize the limit of detection and rapidity. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | ACS APPLIED NANO MATERIALS | - |
dc.title | Streptavidin-Coated Au Nanoparticles Coupled with Biotinylated Antibody-Based Bifunctional Linkers as Plasmon-Enhanced Immunobiosensors | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000517856800103 | - |
dc.identifier.doi | 10.1021/acsanm.9b02461 | - |
dc.identifier.bibliographicCitation | ACS APPLIED NANO MATERIALS, v.3, no.2, pp.1900 - 1909 | - |
dc.description.isOpenAccess | N | - |
dc.citation.endPage | 1909 | - |
dc.citation.startPage | 1900 | - |
dc.citation.title | ACS APPLIED NANO MATERIALS | - |
dc.citation.volume | 3 | - |
dc.citation.number | 2 | - |
dc.contributor.affiliatedAuthor | Lim, Seokwon | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | aggregation | - |
dc.subject.keywordAuthor | bacteria detection | - |
dc.subject.keywordAuthor | bifunctional linker | - |
dc.subject.keywordAuthor | gold nanoparticles | - |
dc.subject.keywordAuthor | immunoreaction | - |
dc.subject.keywordAuthor | signal enhancement | - |
dc.subject.keywordPlus | GOLD NANOPARTICLES | - |
dc.subject.keywordPlus | COLORIMETRIC DETECTION | - |
dc.subject.keywordPlus | SENSITIVE DETECTION | - |
dc.subject.keywordPlus | DIFFERENT SIZES | - |
dc.subject.keywordPlus | PARTICLE-SIZE | - |
dc.subject.keywordPlus | LSPR | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | SENSOR | - |
dc.subject.keywordPlus | DNA | - |
dc.subject.keywordPlus | ABSORPTION | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
1342, Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, Republic of Korea(13120)031-750-5114
COPYRIGHT 2020 Gachon University All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.