Nanospray processing of silver nanoparticles for formation of dried deposits

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081715%3A_____%2F21%3A00543864" target="_blank" >RIV/68081715:_____/21:00543864 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.confer.cz/nanocon/2020/3768-nanospray-processing-of-silver-nanoparticles-for-formation-of-dried-deposits" target="_blank" >https://www.confer.cz/nanocon/2020/3768-nanospray-processing-of-silver-nanoparticles-for-formation-of-dried-deposits</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/nanocon.2020.3768" target="_blank" >10.37904/nanocon.2020.3768</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nanospray processing of silver nanoparticles for formation of dried deposits

Popis výsledku v původním jazyce

Nanospray transfers liquid into an aerosol via electrostatic forces created between an emitter and a counter electrode. Herein, we present compact laboratory-made instrumentation for nanospray-processing of silver colloid. The instrumentation is based on the pressurized polysulfone chamber fixing a disposable vial with an immersed platinum electrode and a long fused silica capillary supplying the sprayed liquid to the emitter. The combination of low flow rates (70 nL/min) with a sharp emitter, fabricated on a 3D printed grinding station, resulted in a fine aerosol. The low volume of released droplets allowed full evaporation of water during their flight towards the counter electrode without any need for drying gas or the addition of volatile solvents. The constructed device was successfully used for the deposition of water-free silver colloid without any requirement of its pretreatment. The deposition of completely dried nanoparticles on planar substrates eliminated undesirable coffee ring effect and deposits of increased homogeneity could be obtained. Electron microscopy confirmed no significant changes in the character of nanospray-processed nanoparticles. Finally, we also investigated several approaches for the improvement of the surface density of nanoparticles on the substrate at preserved time scale.

Název v anglickém jazyce

Nanospray processing of silver nanoparticles for formation of dried deposits

Popis výsledku anglicky

Nanospray transfers liquid into an aerosol via electrostatic forces created between an emitter and a counter electrode. Herein, we present compact laboratory-made instrumentation for nanospray-processing of silver colloid. The instrumentation is based on the pressurized polysulfone chamber fixing a disposable vial with an immersed platinum electrode and a long fused silica capillary supplying the sprayed liquid to the emitter. The combination of low flow rates (70 nL/min) with a sharp emitter, fabricated on a 3D printed grinding station, resulted in a fine aerosol. The low volume of released droplets allowed full evaporation of water during their flight towards the counter electrode without any need for drying gas or the addition of volatile solvents. The constructed device was successfully used for the deposition of water-free silver colloid without any requirement of its pretreatment. The deposition of completely dried nanoparticles on planar substrates eliminated undesirable coffee ring effect and deposits of increased homogeneity could be obtained. Electron microscopy confirmed no significant changes in the character of nanospray-processed nanoparticles. Finally, we also investigated several approaches for the improvement of the surface density of nanoparticles on the substrate at preserved time scale.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

<a href="/cs/project/GJ20-14069Y" target="_blank" >GJ20-14069Y: Povrchem zesílená Ramanova spektroskopie: účinný nástroj pro online detekci fosforylovaných biomolekul separovaných elektromigračními metodami</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

12TH INTERNATIONAL CONFERENCE ON NANOMATERIALS RESEARCH & APPLICATION (NANOCON 2020)

ISBN

978-80-87294-98-7

ISSN

2694-930X

e-ISSN

2694-930X

Počet stran výsledku

5

Strana od-do

(2021)

Název nakladatele

TANGER Ltd

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

21. 10. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000664505500089