Isotachophoretic purification of nanoparticles: tuning optical properties of quantum dots

HLAVÁČEK, Antonín and Petr SKLÁDAL. Isotachophoretic purification of nanoparticles: tuning optical properties of quantum dots. Electrophoresis. Hoboken, USA: Wiley-Blackwell, 2012, vol. 33, 9-10, p. 1427-1430. ISSN 0173-0835. Available from: https://dx.doi.org/10.1002/elps.201100696.

Basic information

• Original name: Isotachophoretic purification of nanoparticles: tuning optical properties of quantum dots
• Name in Czech: Isotachoforetická purifikace nanočástic: modifikace optických vlastností kvantových teček
• Authors: HLAVÁČEK, Antonín (203 Czech Republic, belonging to the institution) and Petr SKLÁDAL (203 Czech Republic, guarantor, belonging to the institution).
• Edition: Electrophoresis, Hoboken, USA, Wiley-Blackwell, 2012, 0173-0835.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10600 1.6 Biological sciences
• Country of publisher: United States of America
• Confidentiality degree: is not subject to a state or trade secret
• WWW: PDF
• Impact factor: Impact factor: 3.261
• RIV identification code: RIV/00216224:14740/12:00067766
• Organization unit: Central European Institute of Technology
• Doi: http://dx.doi.org/10.1002/elps.201100696
• UT WoS: 000304600500012
• Keywords (in Czech): kvantové tečky; isotachoforesa; fluorescence; kvantový výtěžek
• Keywords in English: quantum dots; isotachoforesis; fluorescence; quantum yield
• Tags: nk, quantum dots, rivok
• Tags: International impact, Reviewed

Abstract

Synthesized nanoparticles often require fine fractionation according to shape, dimension, mass, chemical composition, charge, and other properties in order to become suitable for practical use. Quantum dots (QDs) are luminescent nanocrystals with narrow emission peaks. This property has been widely utilized for the multiplexed sensing and barcoding of microparticles. QDs with narrower emission peaks are preferred for such applications. The width of the emission peaks can be significantly reduced after purification. A newly developed preparative isotachophoretic method employs the dependence of spectral properties and electrophoretic mobility on the diameter of QDs. Separated fractions of QDs revealed narrower emission peaks (72% of the original width) and improved quantum yield (two-fold). The usefulness of the developed isotachophoresis for purification and analysis of other nanostructures, for example, plasmonic nanoparticles and nanobioconjugates, is expected, too.

Abstract (in Czech)

Isotachoforetická purifikace syntetizovaných kvatových teček (QD) zvýšila kvantový výtěžek jejich fluorescence

Links

• ED1.1.00/02.0068, research and development project: Name: CEITEC - central european institute of technology