TEMED Enhanced Photoluminescent Imaging of Human Serum Proteins by Quantum Dots After PAGE

  • Na Na
  • Jin OuyangEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 1853)


Polyacrylamide gel electrophoresis (PAGE) has become one of the most powerful and widely used separation techniques for complex biological samples, whose traditional detection methods include organic dye or silver staining. For simple, convenient, and ultrasensitive detection of proteins after PAGE, a novel enhanced photoluminescent (PL) imaging method was developed. Thioglycolic acid (TGA)-capped CdTe quantum dots (QDs) and the enhancer reagent tetramethylethylenediamine (TEMED) were introduced, achieving the direct detection of various proteins in native 1-DE, 2-DE and SDS-PAGE. Here we describe the general protocol of TEMED enhanced PL imaging by QDs, including materials, practical procedures, and some notes.

Key words

CdTe Quantum dots TEMED Photoluminescent imaging Polyacrylamide gel electrophoresis Human serum proteins 



J. Ouyang thanks the financial support by the National Nature Science Foundation of China (21475011 and 21675014) and National Grant of Basic Research Program of China (2011CB915504). N. Na thanks the financial support provided by the National Nature Science Foundation of China (214220503 and 21675015) and the Fundamental Research Funds for the Central Universities.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.College of ChemistryBeijing Normal UniversityBeijingP. R. China

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