کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
870564 1471021 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Conjugation of biotin-coated luminescent quantum dots with single domain antibody-rhizavidin fusions
ترجمه فارسی عنوان
همبستگی نقاط کوانتومی لومینسنت با پوشش بیوتین با فیوژن آنتی بادی ریزاوییدین تک دامنه
کلمات کلیدی
آنتیبادی های دامنه ای تک ریزاویدین، نقاط کوانتومی، رزونانس پلاسما سطح
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی


• Single domain antibody—rhizavidin fusion bioconjugated biotin coated quantum dots.
• Provided facile and effective method to orient antibodies on QD surface.
• Accomplished improved production of His-tagged rhizavidin (RZh) in E. coli.
• Demonstrated utility of RZh as a replacement for tetrameric biotin binders.

Straightforward and effective methods are required for the bioconjugation of proteins to surfaces and particles. Previously we demonstrated that the fusion of a single domain antibody with the biotin binding molecule rhizavidin provided a facile method to coat biotin-modified surfaces with a highly active and oriented antibody. Here, we constructed similar single domain antibody—rhizavidin fusions as well as unfused rhizavidin with a His-tag. The unfused rhizavidin produced efficiently and its utility for assay development was demonstrated in surface plasmon resonance experiments. The single domain antibody-rhizavidin fusions were utilized to coat quantum dots that had been prepared with surface biotins. Preparation of antibody coated quantum dots by this means was found to be both easy and effective. The prepared single domain antibody-quantum dot reagent was characterized by surface plasmon resonance and applied to toxin detection in a fluoroimmunoassay sensing format.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biotechnology Reports - Volume 10, June 2016, Pages 56–65
نویسندگان
, , , , , , , , , ,