Man Bock GU, Yeon Seok KIM, Joong Hyun KIM, In Ae KIM, Su Jin LEE
언어
영어(ENG)
URL
https://www.earticle.net/Article/A144485
※ 원문제공기관과의 협약기간이 종료되어 열람이 제한될 수 있습니다.
원문정보
초록
영어
In this study, the five different aptamers (to Oxytetracyclin, Tetracyclin, Ibuprofen, Diclofenac, and b-estradiol) having different affinity ratios were used, and the order in the sensitivity of target detection was found to be well correlated with its affinity ratio. An affinity ratio, the affinity of the aptamer to targets divided by the affinity to umAuNPs (KdAuNP/KdTarget), was found to be an important factor determining the sensitivity in the competitive interactions among aptamers, targets, and unmodified gold nanoparticles (umAuNPs) [1]. This working principle was primarily confirmed by using a tetracycline binding aptamer showing different affinities to its three derivatives, tetracycline, oxytetracycline, and doxycycline [2]. The color change of the mixture containing umAuNPs, targets, and the tetracyclin binding aptamers (TBAs) was found to be proportional to the affinity ratio of TBA to each of three target compounds. In addition, by implementing this principle established, the sensitivity of ibuprofen detection could be enhanced simply by increasing the ratio of affinity, i.e., reducing the ibuprofen binding aptamer’ affinity to umAuNPs by using bis (p-sulfonatophenyl) phenylphosphine as an AuNP-capping ligand, instead of using the citrate. A clear color change was resulted even at a 20-fold less amount of ibuprofen. Finally, this working principle has been also strongly supported and confirmed by adsorption-equilibrium based mathematical model simulation.
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동
간행물
간행물명
한국생물공학회 학술대회
간기
반년간
수록기간
1985~2013
십진분류
KDC 476DDC 576
이 권호 내 다른 논문 / 한국생물공학회 학술대회 2011년도 한국생물공학회 춘계학술발표대회