J 2013

Paramagnetic Particles Isolation of Influenza Oligonucleotide Labelled with CdS QDs

KREJČOVÁ, Ludmila, David HYNEK, Pavel KOPEL, Vojtech ADAM, Jaromír HUBÁLEK et. al.

Basic information

Original name

Paramagnetic Particles Isolation of Influenza Oligonucleotide Labelled with CdS QDs

Authors

KREJČOVÁ, Ludmila, David HYNEK, Pavel KOPEL, Vojtech ADAM, Jaromír HUBÁLEK, Libuše TRNKOVÁ and René KIZEK

Edition

Chromatographia, 2013, 0009-5893

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10403 Physical chemistry

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.370

Organization unit

Faculty of Science

UT WoS

000316819600008

Keywords in English

Biosensors; Voltammetry; Automated separation; Nanoparticles; Quantum dots; Hybridization; Virus

Tags

Změněno: 28/4/2014 14:31, Ing. Zdeňka Rašková

Abstract

V originále

In this study, we describe hybridization design probes consisting of paramagnetic particles and quantum dots (QDs) with targeted DNA, and their application for detection of avian influenza virus (H5N1). Optical properties of QDs were beneficial, but the main attention was paid to the electroactivity of metal part of QDs and ODNs themselves. Differential pulse voltammetry was used for detection of cadmium(II) ions and square wave voltammetry for detection of cytosine-adenine peak in ODN-SH-Cd complex. It clearly follows from the obtained results that the optimized conditions were temperature of hybridization 25 A degrees C, time of hybridization 35 min, and concentration of ODN-SH-Cd complex 20 mu g mL(-1). The detection limit (3 signal/noise) was estimated as 15 ng mL(-1) of ODN-SH-Cd.