US 12,218,609 B2
Virus-based piezoelectric energy generation
Seung-Wuk Lee, Walnut Creek, CA (US); and Byung Yang Lee, Seoul (KR)
Assigned to THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US)
Filed by The Regents of the University of California, Oakland, CA (US)
Filed on May 10, 2013, as Appl. No. 13/892,148.
Claims priority of provisional application 61/646,213, filed on May 11, 2012.
Prior Publication US 2021/0320597 A1, Oct. 14, 2021
Int. Cl. H02N 2/00 (2006.01); C12N 7/00 (2006.01); H02N 2/18 (2006.01); H10N 30/06 (2023.01); H10N 30/30 (2023.01); H10N 30/87 (2023.01)
CPC H02N 2/00 (2013.01) [C12N 7/00 (2013.01); H02N 2/18 (2013.01); H10N 30/06 (2023.02); H10N 30/30 (2023.02); H10N 30/874 (2023.02); H10N 30/878 (2023.02); C12N 2795/00021 (2013.01)] 31 Claims
 
1. A piezoelectric device for energy generation or actuation comprising a piezoelectric element comprising a virus comprising a viral capsid comprising a coat protein recombinantly modified to comprise a negatively charged amino acid sequence within the first 50 amino acid residues of the viral capsid's N-terminus; wherein the negatively charged amino acid sequence is three to ten amino acid residues long, does not comprise any positively charged amino acid residue, and comprises at least two negatively charged amino acid residues, wherein each negatively charged amino acid residue is a glutamate or aspartate, and the negatively charged amino acid sequence is displayed on the recombinant virus's surface and does not interfere with the self-assembly of the virus.