D 2008

Nanopolyperoxidase – a universal system for simultaneous colorimetric signal enhancement and nanoscale visualization of antibody labeling

PŘIBYL, Jan, Kateřina FRNKOVÁ, Petr SKLÁDAL and Miloslav SUCHÁNEK

Basic information

Original name

Nanopolyperoxidase – a universal system for simultaneous colorimetric signal enhancement and nanoscale visualization of antibody labeling

Authors

PŘIBYL, Jan (203 Czech Republic, guarantor), Kateřina FRNKOVÁ (203 Czech Republic, belonging to the institution), Petr SKLÁDAL (203 Czech Republic, belonging to the institution) and Miloslav SUCHÁNEK (203 Czech Republic)

Edition

Brno, 5th international interdisciplinary meeting on bioanalysis CECE 2008, p. 70-71, 2 pp. 2008

Publisher

Institute of Analytical Chemisty AS CR

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/08:00052277

Organization unit

Faculty of Science

ISBN

978-80-254-3194-8

Keywords in English

antibody enzyme-label blotting ELISA
Změněno: 2/4/2012 10:58, Mgr. Jan Přibyl, Ph.D.

Abstract

V originále

During past decades, a variety of signal amplification approaches in heterogeneous affinity immunoassays (including ELISA) has been developed. Those procedures are usually based either on recirculation enzymatic or repeated multiplication of an enzyme label via avidin-biotin system. From practical point of view, the multiplication procedure should not change experimental part of method, e.g. number of steps in procedure or solution content should not be changed. For this reason, an idea of nanopolyperoxidase (NPP) has originated. The principle is simple: gold nanoparticles are modified with an antibody as well as with labeling enzyme (Horseradish peroxidase; ration 2:8). Modified nanoparticle is stabilized in a PEG solution. Prepared NPP was studied using various methods. Atomic Force Microscopy (AFM) was used for characterization of structure and morphology in a nanometer scale (see image below). Use of NPP in construction of competitive ELISA as well as in visualization of a protein (Human Serum Albumin as model compound) on a blotting membrane is presented.

Links

2B06056, research and development project
Name: Diagnostika poškození DNA polyaromatickými sloučeninami použitím nanotechnologických a bioanalytických metod pro včasnou detekci karcinomu.
Investor: Ministry of Education, Youth and Sports of the CR, Nanotechnological and bioanalytical detection of the DNA damage