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Microscale Atmospheric Pressure Plasma Jet as a Source for Plasma‐Driven Biocatalysis
Author(s) -
Yayci Abdulkadir,
Dirks Tim,
Kogelheide Friederike,
Alcalde Miguel,
Hollmann Frank,
Awakowicz Peter,
Bandow Julia E.
Publication year - 2020
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202001225
Subject(s) - microscale chemistry , biocatalysis , atmospheric pressure plasma , chemistry , hydrogen peroxide , plasma , dielectric barrier discharge , jet (fluid) , catalysis , chemical engineering , reaction mechanism , organic chemistry , thermodynamics , physics , mathematics education , mathematics , electrode , quantum mechanics , engineering
The use of a microscale atmospheric pressure plasma jet (μAPPJ) was investigated for its potential to supply hydrogen peroxide in biocatalysis. Compared to a previously employed dielectric barrier discharge (DBD), the μAPPJ offered significantly higher H 2 O 2 production rates and better handling of larger reaction volumes. The performance of the μAPPJ was evaluated with recombinant unspecific peroxygenase from Agrocybe aegerita (r Aae UPO). Using plasma‐treated buffer, no side reactions with other plasma‐generated species were detected. For long‐term treatment, r Aae UPO was immobilized, transferred to a rotating bed reactor, and reactions performed using the μAPPJ. The enzyme had a turnover of 36,415 mol mol −1 and retained almost full activity even after prolonged plasma treatment. Overall, the μAPPJ presents a promising plasma source for plasma‐driven biocatalysis.