Article History
Received: 27 March 2018
Accepted: 13 December 2018
First Online: 14 January 2019
Competing interests
: A.K. and POIETAI L.L.C. hold commercial rights including but not only a patent pending (PCT International Patent Application No. PCT/US17/22956) to the micro-dispenser and micro-dispenser-based products. The other authors declare no competing interests.