By Kevin Robinson-Avila / Journal Staff Writer   Leisha Armijo-Martin, in her lab where she works. She is a nano materials engineer who leads an MNT SmartSolutions team developing a remote-controlled, magnetic anti-bacterial toothpaste and toothbrush. (Courtesy of MNT SmartSolutions LLC) Copyright © 2022 Albuquerque Journal A remote-controlled, magnetic toothpaste and toothbrush that injects anti-bacterial solutions into the nooks and crannies of gums and teeth could soon hit the market, thanks to novel nanotechnology developed at the University of New Mexico. The product is still under development, but a newly created startup company, MNT SmartSolutions LLC, is working to put...