NEW! 4 AXIS SERVO from 2.25 " - brushed or bldc motors - 5 amps per axis - 16 analog inputs - 16 on/off drivers - home and limit in - live tech support - made in the USA See the EZQUAD SERVO in action! An artistic representation of the pH-gradient-enabled microscale bipolar interface (PMBI). The two layers that make up the interface are covering the third bottom layer, which is the electrode with palladium particles on it. The submarine and drones are envisioned applications of the direct borohydride fuel cell that incorporates the PMBI. (McKelvey School of Engineering) power applications such as drone flight. The fuel cell uses an acidic electrolyte at one electrode and an alkaline electrolyte at the other electrode. Typically, the acid and alkali will quickly react when brought in contact with each other. The PMBI is thinner than a strand of human hair so it can keep the acid and alkali from mixing, forming a sharp pH gradient and enabling the successful operation of the system. Tech Briefs, September 2021 Cov Previous attempts to achieve this kind of acid-alkali separation were not able to synthesize and fully characterize the pH gradient across the PMBI. Using a novel electrode design in conjunction with elec troanalytical techniques, the acid and alkali remain separated. For more information, contact Leslie McCarthy at leslie_mccarthy@wustl.edu; 314-935-6603. www.techbriefs.com ToC Free Info at http://info.hotims.com/79417-763 (510) 471-4000 WWW.ALLMOTION.COM 30097 Ahern Avenue Union City, CA 94587 Te chnical Suppor t (408) 460-1345http://info.hotims.com/79417-763 http://www.techbriefs.com http://www.abpi.net/ntbpdfclicks/l.php?202109TBNAV