Real-time precision opto-control of chemical processes in live cells

Matthew G. Clark, Gil A. Gonzalez, Yiyang Luo, Jesus A. Aldana-Mendoza, Mark S. Carlsen, Gregory Eakins, Mingji Dai and Chi Zhang ()
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Matthew G. Clark: Purdue University
Gil A. Gonzalez: Purdue University
Yiyang Luo: Purdue University
Jesus A. Aldana-Mendoza: Purdue University
Mark S. Carlsen: Purdue University
Gregory Eakins: Purdue University
Mingji Dai: Purdue University
Chi Zhang: Purdue University

Nature Communications, 2022, vol. 13, issue 1, 1-12

Abstract: Abstract Precision control of molecular activities and chemical reactions in live cells is a long-sought capability by life scientists. No existing technology can probe molecular targets in cells and simultaneously control the activities of only these targets at high spatial precision. We develop a real-time precision opto-control (RPOC) technology that detects a chemical-specific optical response from molecular targets during laser scanning and uses the optical signal to couple a separate laser to only interact with these molecules without affecting other sample locations. We demonstrate precision control of molecular states of a photochromic molecule in different regions of the cells. We also synthesize a photoswitchable compound and use it with RPOC to achieve site-specific inhibition of microtubule polymerization and control of organelle dynamics in live cells. RPOC can automatically detect and control biomolecular activities and chemical processes in dynamic living samples with submicron spatial accuracy, fast response time, and high chemical specificity.

Date: 2022
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DOI: 10.1038/s41467-022-32071-z

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