PMID- 22609604 OWN - NLM STAT- MEDLINE DCOM- 20121002 LR - 20131121 IS - 1873-4367 (Electronic) IS - 0927-7765 (Linking) VI - 97 DP - 2012 Sep 1 TI - Smart copper oxide nanocrystals: synthesis, characterization, electrochemical and potent antibacterial activity. PG - 201-6 LID - 10.1016/j.colsurfb.2012.04.032 [doi] AB - We report herein the synthesis and characterization of novel CuO nanocrystals and their electrochemical and potent antibacterial activity. The utilized CuO nanocrystals were prepared by wet chemical method using copper acetate and hexamethylenetetramine (HMTA) as precursors. The physicochemical properties of the synthesized CuO nanocrystals having size ~6 nm were determined by X-ray diffractometer (XRD), energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM) and ultra violet-visible (UV-Vis) spectroscopy. The antibacterial study was carried out by minimum inhibitory concentration (MIC) using E. coli as model organism. The MIC of the CuO nanocrystals was found to be 2.5 mug/ml and the TEM analysis reveals that CuO nanocrystals caused disturbance to the cell wall which led to the irreversible damage to the cell envelope eventually leading to cell death. Furthermore, mechanism of bactericidal action of novel CuO nanocrystals is discussed in the light of our findings. Additionally, the synthesized CuO nanocrystals were applied as electrode material for supercapacitor. The specific capacitance of CuO nanocrystals measured at a potential scan rate of 5 mV/s was as high as 164.9 F g(-1). CI - Copyright (c) 2012 Elsevier B.V. All rights reserved. FAU - Hassan, M Shamshi AU - Hassan MS AD - Department of Organic Materials and Fiber Engineering, Chonbuk National University, Jeonju 561-756, Republic of Korea. FAU - Amna, Touseef AU - Amna T FAU - Yang, O-Bong AU - Yang OB FAU - El-Newehy, Mohamed H AU - El-Newehy MH FAU - Al-Deyab, Salem S AU - Al-Deyab SS FAU - Khil, Myung-Seob AU - Khil MS LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120428 PL - Netherlands TA - Colloids Surf B Biointerfaces JT - Colloids and surfaces. B, Biointerfaces JID - 9315133 RN - 0 (Anti-Bacterial Agents) RN - 789U1901C5 (Copper) RN - T8BEA5064F (cuprous oxide) SB - IM MH - Anti-Bacterial Agents/*chemistry/*pharmacology MH - Copper/*chemistry/*pharmacology MH - Electrochemistry MH - Microscopy, Electron, Transmission MH - Nanoparticles/*chemistry/ultrastructure MH - Nanotechnology MH - X-Ray Diffraction EDAT- 2012/05/23 06:00 MHDA- 2012/10/04 06:00 CRDT- 2012/05/22 06:00 PHST- 2012/03/19 00:00 [received] PHST- 2012/04/17 00:00 [revised] PHST- 2012/04/21 00:00 [accepted] PHST- 2012/05/22 06:00 [entrez] PHST- 2012/05/23 06:00 [pubmed] PHST- 2012/10/04 06:00 [medline] AID - S0927-7765(12)00251-2 [pii] AID - 10.1016/j.colsurfb.2012.04.032 [doi] PST - ppublish SO - Colloids Surf B Biointerfaces. 2012 Sep 1;97:201-6. doi: 10.1016/j.colsurfb.2012.04.032. Epub 2012 Apr 28.