Paper
14 November 2003 Functional mapping of cell surface proteins with localized stimulation of single cells
Bingyun Sun, Daniel T. Chiu
Author Affiliations +
Abstract
This paper describes the development of using individual micro and nano meter-sized vesicles as delivery vessels to functionally map the distribution of cell surface proteins at the level of single cells. The formation of different sizes of vesicles from tens of nanometers to a few micrometers in diameter that contain the desired molecules is addressed. An optical trap is used to manipulate the loaded vesicle to specific cell morphology of interest, and a pulsed UV laser is used to photo-release the stimuli onto the cell membrane. Carbachol activated cellular calcium flux, upon binding to muscarinic acetylcholine receptors, is studied by this method, and the potential of using this method for the functional mapping of localized proteins on the cell surface membrane is discussed.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bingyun Sun and Daniel T. Chiu "Functional mapping of cell surface proteins with localized stimulation of single cells", Proc. SPIE 5222, Nanocrystals, and Organic and Hybrid Nanomaterials, (14 November 2003); https://doi.org/10.1117/12.506906
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KEYWORDS
Photolysis

Proteins

Molecules

Luminescence

Calcium

Receptors

Pulsed laser operation

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