A nanofluidic device for parallel single nanoparticle catalysis in solution
Artikel i vetenskaplig tidskrift, 2019

Studying single catalyst nanoparticles, during reaction, eliminates averaging effects that are an inherent limitation of ensemble experiments. It enables establishing structure-function correlations beyond averaged properties by including particle-specific descriptors such as defects, chemical heterogeneity and microstructure. Driven by these prospects, several single particle catalysis concepts have been implemented. However, they all have limitations such as low throughput, or that they require very low reactant concentrations and/or reaction rates. In response, we present a nanofluidic device for highly parallelized single nanoparticle catalysis in solution, based on fluorescence microscopy. Our device enables parallel scrutiny of tens of single nanoparticles, each isolated inside its own nanofluidic channel, and at tunable reaction conditions, ranging from the fully mass transport limited regime to the surface reaction limited regime. In a wider perspective, our concept provides a versatile platform for highly parallelized single particle catalysis in solution and constitutes a promising application area for nanofluidics.

Författare

Sune Levin

Chalmers, Biologi och bioteknik, Kemisk biologi

Joachim Fritzsche

Chalmers, Fysik, Kemisk fysik

Sara Nilsson

Chalmers, Fysik, Kemisk fysik

August Runemark

Chalmers, Kemi och kemiteknik, Kemi och biokemi, Fysikalisk kemi

Bhausaheb Kashinath Dhokale

Chalmers, Kemi och kemiteknik, Kemi och biokemi

Henrik Ström

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Henrik Sundén

Chalmers, Kemi och kemiteknik, Kemi och biokemi

Christoph Langhammer

Chalmers, Fysik, Kemisk fysik

Fredrik Westerlund

Chalmers, Biologi och bioteknik, Kemisk biologi

Nature Communications

2041-1723 (ISSN)

Vol. 10 1 4426-

Ämneskategorier

Polymerkemi

Annan kemiteknik

Annan kemi

Styrkeområden

Nanovetenskap och nanoteknik (SO 2010-2017, EI 2018-)

Infrastruktur

Chalmers materialanalyslaboratorium

Nanotekniklaboratoriet

DOI

10.1038/s41467-019-12458-1

PubMed

31562383

Mer information

Senast uppdaterat

2020-08-27