Document Detail


Fabrication of A Novel Cholic Acid Modified OPE-based Fluorescent Film and Its Sensing Performances to Inorganic Acids in Acetone.
MedLine Citation:
PMID:  23148745     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A self-assembled monolayer (SAM)-based fluorescent film was designed and prepared by chemical immobilization of a novel oligo(p-phenyleneethynylene) (OPE) with cholic acid (CA) moieties at the ends of its side chains (Film 1). As a control, a similar film, Film 2, of which OPE brings no side chains, was also prepared. The structures of the films were characterized by contact angle, XPS, ATR-IR and fluorescence measurements. Fluorescence studies revealed that the emission of Film 1 is sensitive to the presence of trace amount of some inorganic acids in acetone, such as HCl, H2SO4, HNO3, and H3PO4, etc., whereas the acids as studied showed little effect on the emission of Film 2. The difference in the sensing performances of the two films have been rationalized by considering presence or absence of a possible cavity, a substructure appearing above the OPE adlayer which is something like a dimmer of CA formed at specific environment.
Authors:
Hong Cui; Gang He; Hongyue Wang; Xiaohuan Sun; Taihong Liu; Liping Ding; Yu Fang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-14
Journal Detail:
Title:  ACS applied materials & interfaces     Volume:  -     ISSN:  1944-8252     ISO Abbreviation:  ACS Appl Mater Interfaces     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101504991     Medline TA:  ACS Appl Mater Interfaces     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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