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Title: Membrane insertion of—and membrane potential sensing by—semiconductor voltage nanosensors: Feasibility demonstration

Journal Article · · Science Advances
 [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1];  [3]; ORCiD logo [4];  [5]; ORCiD logo [6];  [7];  [8];  [1]; ORCiD logo [9]
  1. Univ. of California, Los Angeles, CA (United States). Dept. of Chemistry and Biochemistry
  2. Academy of Sciences of the Czech Republic (ASCR), Prague (Czech Republic). Inst. of Organic Chemistry and Biochemistry
  3. Univ. of California, Los Angeles, CA (United States). Dept. of Microbiology, Immunology, and Molecular Genetics
  4. Univ. of California, Los Angeles, CA (United States). Dept. of Chemical and Biomolecular Engineering
  5. Univ. of California, Los Angeles, CA (United States). Dept. of Ecology and Evolutionary Biology
  6. Univ. of California, Los Angeles, CA (United States). Dept. of Microbiology, Immunology, and Molecular Genetics. California NanoSystems Inst.
  7. Harvard Univ., Cambridge, MA (United States). Dept. of Chemistry and Chemical Biology
  8. Univ. of California, Los Angeles, CA (United States). Dept. of Chemistry and Biochemistry. Dept. of Physics
  9. Univ. of California, Los Angeles, CA (United States). Dept. of Chemistry and Biochemistry. California NanoSystems Inst. Dept. of Physiology

We developed membrane voltage nanosensors that are based on inorganic semiconductor nanoparticles. We provide here a feasibility study for their utilization. We use a rationally designed peptide to functionalize the nanosensors, imparting them with the ability to self-insert into a lipid membrane with a desired orientation. Once inserted, these nanosensors could sense membrane potential via the quantum confined Stark effect, with a single-particle sensitivity. With further improvements, these nanosensors could potentially be used for simultaneous recording of action potentials from multiple neurons in a large field of view over a long duration and for recording electrical signals on the nanoscale, such as across one synapse.

Research Organization:
Univ. of California, Los Angeles, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Biological and Environmental Research (BER); National Inst. of Health (NIH) (United States); National Science Foundation (NSF); Defense Advanced Research Projects Agency (DARPA) (United States); United States–Israel Binational Science Foundation; Human Frontier Science Program
Grant/Contract Number:
FC02-02ER63421; AC02-05CH11231; 1S10RR23057; GM071940; DMR-1309188; DMR-1548924; D14PC00141; 2010382; RGP0061/2015
OSTI ID:
1499965
Journal Information:
Science Advances, Vol. 4, Issue 1; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 28 works
Citation information provided by
Web of Science

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Cited By (4)

Interfacing the Cell with “Biomimetic Membrane Proteins” journal December 2019
Rapid Voltage Sensing with Single Nanorods via the Quantum Confined Stark Effect journal December 2017
Sensing with photoluminescent semiconductor quantum dots journal January 2019
Strategies to Overcome Autofluorescence in Nanoprobe-Driven In Vivo Fluorescence Imaging journal June 2018

Figures / Tables (5)