Single-step conjugation of antibodies to quantum dots for labeling cell surface receptors in mammalian cells

Gopal Iyer, Jianmin Xu, Shimon Weiss

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Scopus citations

Abstract

Labeling of cell surface receptors in living cells can be achieved using antibody-conjugated semiconductor quantum dots (QDs). The inherent photostable property of QDs can be exploited for understanding the arrangement and distribution of receptors in the plasma membrane. We describe herein methods that allow conjugation of antibodies to QDs in a single step without the formation of side products. This protocol can be adapted universally for any type of QD structure with a coating of free amino groups.

Original languageEnglish
Title of host publicationMethods in Molecular Biology
PublisherHumana Press Inc.
Pages553-563
Number of pages11
DOIs
StatePublished - 2011
Externally publishedYes

Publication series

NameMethods in Molecular Biology
Volume751
ISSN (Print)1064-3745

Bibliographical note

Publisher Copyright:
© Springer Science+Business Media, LLC 2011.

Funding

These protocols were developed in part by support from grants NIH/NIBIB BRP5-R01-EB000312 and NIH1-R01-GM086197-01. Ensemble confocal imaging was performed at the UCLA/CNSI Advanced Light Microscopy Shared Facility.

FundersFunder number
NIH/NIBIBNIH1-R01-GM086197-01, BRP5-R01-EB000312
UCLA/CNSI Advanced Light Microscopy Shared Facility
National Institute of General Medical SciencesR01GM086197
National Institute of Biomedical Imaging and BioengineeringR01EB000312

    Keywords

    • Antibodies
    • Cell membrane labeling
    • Epidermal growth factor receptor
    • Gel filtration
    • Live cell imaging
    • Peptides
    • Quantum dot

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