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Hydrogen-Bubble Propelled Zinc-based Microrockets in Strongly Acidic Media.
MedLine Citation:
PMID:  22188367     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Tubular polyaniline (PANI)/Zn microrockets, displaying effective autonomous motion in extreme acidic environments, without any additional chemical fuel, are described. These acid-driven hydrogen-bubble propelled microrockets have been electrosynthesized using the conical polycarbonate template. The effective propulsion in acidic media reflects the continuous thrust of hydrogen bubbles generated by the spontaneous redox reaction occurring at the inner Zn surface. The pro-pulsion characteristics of PANI/Zn microrockets in different acids and in human serum are described. The observed speed-pH dependence holds promise for sensitive pH measurements in extreme acidic environments. The new microrockets display an ultrafast propulsion (as high as 100 body lengths/s) along with attractive capabilities ranging from guided movement and directed cargo transport. Such acid-driven microtubular rockets offer considerable potential for diverse biomedical or industrial applications.
Authors:
Wei Gao; Aysegul Uygun; Joseph Wang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-20
Journal Detail:
Title:  Journal of the American Chemical Society     Volume:  -     ISSN:  1520-5126     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503056     Medline TA:  J Am Chem Soc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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