Document Detail


Ultrathin optically transparent carbon electrodes produced from layers of adsorbed proteins.
MedLine Citation:
PMID:  23421732     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This work describes a simple, versatile, and inexpensive procedure to prepare optically transparent carbon electrodes, using proteins as precursors. Upon adsorption, the protein-coated substrates were pyrolyzed under reductive conditions (5% H2) to form ultrathin, conductive electrodes. Because proteins spontaneously adsorb to interfaces forming uniform layers, the proposed method does not require a precise control of the preparation conditions, specialized instrumentation, or expensive precursors. The resulting electrodes were characterized by a combination of electrochemical, optical, and spectroscopic means. As a proof-of-concept, the optically transparent electrodes were also used as substrate for the development of an electrochemical glucose biosensor. The proposed films represent a convenient alternative to more sophisticated, and less available, carbon-based nanomaterials. Furthermore, these films could be formed on a variety of substrates, without classical limitations of size or shape.
Authors:
Sarah A Alharthi; Tomás E Benavidez; Carlos D Garcia
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2013-03-04
Journal Detail:
Title:  Langmuir : the ACS journal of surfaces and colloids     Volume:  29     ISSN:  1520-5827     ISO Abbreviation:  Langmuir     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-03-12     Completed Date:  2013-09-04     Revised Date:  2014-03-14    
Medline Journal Info:
Nlm Unique ID:  9882736     Medline TA:  Langmuir     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3320-7     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adsorption
Biosensing Techniques / methods
Carbon / chemistry*
Electrodes*
Glucose / analysis,  chemistry
Nanostructures / chemistry*
Proteins / chemistry*
Grant Support
ID/Acronym/Agency:
1SC3GM081085/GM/NIGMS NIH HHS; 2SC3GM081085/GM/NIGMS NIH HHS; G12 MD007591/MD/NIMHD NIH HHS; G12MD007591/MD/NIMHD NIH HHS; SC3 GM081085/GM/NIGMS NIH HHS
Chemical
Reg. No./Substance:
0/Proteins; 7440-44-0/Carbon; IY9XDZ35W2/Glucose
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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