Document Detail


Analytical performances of aptamer-based sensing for thrombin detection.
MedLine Citation:
PMID:  17338547     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Aptamer-based assays represent a modern and attractive approach in bioanalytical chemistry. The DNA thrombin aptamer has been extensively investigated, and the coupling of this aptamer to different transduction principles has demonstrated the wide applicability of aptamers as bioreceptors in bioanalytical assays. The goal of this work was to critically evaluate all the parameters that can influence the sensor performances by using the thrombin aptamer immobilized onto piezoelectric quartz crystals. The optimization of the immobilization and the binding protocol was of paramount importance, and improvements in analytical performances could be obtained by optimizing simple steps in immobilization and assay conditions. Moreover, the work demonstrated the possibility of using aptamer-based sensors in complex matrixes, opening the possibility of a real application to diagnostics or medical investigation.
Authors:
Alessandra Bini; Maria Minunni; Sara Tombelli; Sonia Centi; Marco Mascini
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Publication Detail:
Type:  Letter     Date:  2007-03-06
Journal Detail:
Title:  Analytical chemistry     Volume:  79     ISSN:  0003-2700     ISO Abbreviation:  Anal. Chem.     Publication Date:  2007 Apr 
Date Detail:
Created Date:  2007-03-30     Completed Date:  2007-06-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370536     Medline TA:  Anal Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3016-9     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Aptamers, Nucleotide / chemistry*
Electrodes
Gold / chemistry
Humans
Serum Albumin / chemistry
Surface Properties
Thrombin / analysis*
Time Factors
Chemical
Reg. No./Substance:
0/Aptamers, Nucleotide; 0/Serum Albumin; 7440-57-5/Gold; EC 3.4.21.5/Thrombin

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


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