Funding for this research was provided by:
Alexander von Humboldt-Stiftung
United States Department of Defense | United States Army | U.S. Army Research, Development and Engineering Command | Army Research Office (W911NF-16-1-0019, W911NF-16-1-0019)
Received: 3 January 2020
Accepted: 12 June 2020
First Online: 27 July 2020
: A.P.-F. and M.C.D. have issued patents (US patent 9,663,658 and US patent 10,253,144), and H.J. and M.C.D. have issued patents (US patent 9,765,121, US patent 10,047,127, and US patent 10,246,493) on technology related to processes described in this article. All other authors have no competing interests.