J Histochem Cytochem. 2000 Apr;48(4):471-80.

New frontiers in gold labeling.

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Biology Department, Brookhaven National Laboratory, Upton, New York, USA. hainfeld@bnl.gov

Abstract

Recent advances in gold technology have led to probes with improved properties and performance for cell biologists: higher labeling density, better sensitivity, and greater penetration into tissues. Gold clusters, such as the 1.4-nm Nanogold, are gold compounds that can be covalently linked to Fab' antibody fragments, making small and stable probes. Silver enhancement then makes these small gold particles easily visible by EM, LM, and directly by eye. Another advance is the combination of fluorescent and gold probes for correlative microscopy. Chemical crosslinking of gold particles to many biologically active molecules has made possible many novel probes, such as gold-lipids, gold-Ni-NTA, and gold-ATP.

PMID:: 10727288; [PubMed - indexed for MEDLINE]

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