PMID- 23116853 OWN - NLM STAT- MEDLINE DCOM- 20131112 LR - 20131121 IS - 1095-7103 (Electronic) IS - 0021-9797 (Linking) VI - 391 DP - 2013 Feb 1 TI - Steric hindrance colloidal microsphere approach to fabricate ordered and interconnected Pt or Pt/Ag hollow hemispheres. PG - 54-9 LID - S0021-9797(12)01117-4 [pii] LID - 10.1016/j.jcis.2012.09.071 [doi] AB - A steric hindrance colloidal microspheres approach (SHCMA) has been developed for the fabrication of ordered Pt or Pt/Ag nanoparticles composite interconnected hollow hemispheres via colloidal lithography and physical vapor deposition. Monolayer ordered silica or silica/Ag nanoparticles composite microspheres partly embedded into the polydimethylsiloxane (PDMS) were used as template, and Pt was sputtered on it. Due to the PDMS stamp functionalized as a steric hindrance substrate, which guaranteed that the ordered silica or silica/Ag nanoparticles composite microspheres were only coated with Pt film on the sides that exposed in air. After removing the template particles, large area ordered interconnected Pt or Pt/Ag nanoparticles composite hollow hemispheres were generated. The fabricated Pt hollow hemispheres have flat bottoms and are flexible and robust enough to be easily folded. In addition to successfully solving the challenge about ordered structure construction of the hollow Pt or Pt/Ag nanoparticles composite hemispheres here, we also could finely control the wall thickness of these hemispheres easily by changing the sputtering time or current. CI - Copyright (c) 2012 Elsevier Inc. All rights reserved. FAU - Chen, Zhimin AU - Chen Z AD - College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, China. FAU - Fu, Jianwei AU - Fu J FAU - Xu, Qun AU - Xu Q FAU - Guo, Yuanlong AU - Guo Y FAU - Zhang, Hailian AU - Zhang H FAU - Chen, Jiafu AU - Chen J FAU - Zhang, Jianan AU - Zhang J FAU - Tian, Guo AU - Tian G FAU - Yang, Bai AU - Yang B LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121012 PL - United States TA - J Colloid Interface Sci JT - Journal of colloid and interface science JID - 0043125 RN - 0 (Colloids) RN - 0 (Dimethylpolysiloxanes) RN - 3M4G523W1G (Silver) RN - 49DFR088MY (Platinum) RN - 63148-62-9 (baysilon) RN - 7631-86-9 (Silicon Dioxide) SB - IM MH - Colloids/chemistry MH - Dimethylpolysiloxanes MH - Microscopy, Atomic Force MH - Microscopy, Electron, Scanning MH - *Microspheres MH - Nanoshells MH - Nanospheres/*chemistry MH - Platinum MH - Silicon Dioxide/chemistry MH - Silver MH - Surface Properties EDAT- 2012/11/03 06:00 MHDA- 2013/11/13 06:00 CRDT- 2012/11/03 06:00 PHST- 2012/07/13 00:00 [received] PHST- 2012/09/13 00:00 [revised] PHST- 2012/09/17 00:00 [accepted] PHST- 2012/11/03 06:00 [entrez] PHST- 2012/11/03 06:00 [pubmed] PHST- 2013/11/13 06:00 [medline] AID - S0021-9797(12)01117-4 [pii] AID - 10.1016/j.jcis.2012.09.071 [doi] PST - ppublish SO - J Colloid Interface Sci. 2013 Feb 1;391:54-9. doi: 10.1016/j.jcis.2012.09.071. Epub 2012 Oct 12.