PMID- 30037550
OWN - NLM
STAT- MEDLINE
DCOM- 20181227
LR  - 20191210
IS  - 1879-0909 (Electronic)
IS  - 0141-0229 (Linking)
VI  - 117
DP  - 2018 Oct
TI  - Carbon-nanotube-caged microbial electrodes for bioelectrocatalysis.
PG  - 41-44
LID - S0141-0229(18)30109-1 [pii]
LID - 10.1016/j.enzmictec.2018.06.004 [doi]
AB  - A method to stably immobilize microbes on electrodes was developed. Resting cells 
      of Methylobacterium extorquens AM1(MeAM1) were caged within multiwalled carbon 
      nanotubes (MWNTs)by adding the cells to a water dispersion of MWNTs then allowing 
      the resulting mixture to dry on electrodes. The MeAM1-MWCNTs electrode thus 
      obtained displayed excellent activities in the bidirectional bioelectrocatalysis 
      due to formate dehydrogenase(s) in the resting cells; formate oxidation and 
      carbon dioxide reduction proceeded at steady-state catalytic current densities of 
      0.6 +/- 0.1 and -0.8 +/- 0.1 mA cm(-2), respectively, using methyl viologen as 
      mediator under very mild conditions (pH 7.0, atmospheric pressure, and 37  degrees C). In 
      addition, the catalytic signal was stable for more than one week under continuous 
      operation.
CI  - Copyright (c) 2018 Elsevier Inc. All rights reserved.
FAU - Xia, Hong-Qi
AU  - Xia HQ
AD  - Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto 
      University, Kyoto, 606-8502, Japan.
FAU - Sakai, Kento
AU  - Sakai K
AD  - Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto 
      University, Kyoto, 606-8502, Japan.
FAU - Kitazumi, Yuki
AU  - Kitazumi Y
AD  - Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto 
      University, Kyoto, 606-8502, Japan.
FAU - Shirai, Osamu
AU  - Shirai O
AD  - Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto 
      University, Kyoto, 606-8502, Japan.
FAU - Takagi, Kazuyoshi
AU  - Takagi K
AD  - Department of Applied Chemistry, College of Life Science, Ritsumeikan University, 
      Noji-Higashi 1-1-1, Kusatsu, Shiga 525-8577, Japan.
FAU - Kano, Kenji
AU  - Kano K
AD  - Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto 
      University, Kyoto, 606-8502, Japan. Electronic address: 
      kano.kenji.5z@kyoto-u.ac.jp.
LA  - eng
PT  - Journal Article
DEP - 20180619
PL  - United States
TA  - Enzyme Microb Technol
JT  - Enzyme and microbial technology
JID - 8003761
RN  - 0 (Nanotubes, Carbon)
RN  - EC 1.17.1.9 (Formate Dehydrogenases)
SB  - IM
MH  - Biodegradation, Environmental
MH  - Bioelectric Energy Sources/*microbiology
MH  - Biosensing Techniques/*methods
MH  - Catalysis
MH  - *Electrodes
MH  - Formate Dehydrogenases/metabolism
MH  - Methylobacterium extorquens/*metabolism
MH  - Nanotubes, Carbon/*chemistry
MH  - Oxidation-Reduction
OTO - NOTNLM
OT  - Carbon dioxide reduction
OT  - Formate oxidation
OT  - Immobilization
OT  - Resting cells
OT  - Water-dispersed carbon nanotubes
EDAT- 2018/07/25 06:00
MHDA- 2018/12/28 06:00
CRDT- 2018/07/25 06:00
PHST- 2018/03/13 00:00 [received]
PHST- 2018/06/07 00:00 [revised]
PHST- 2018/06/13 00:00 [accepted]
PHST- 2018/07/25 06:00 [entrez]
PHST- 2018/07/25 06:00 [pubmed]
PHST- 2018/12/28 06:00 [medline]
AID - S0141-0229(18)30109-1 [pii]
AID - 10.1016/j.enzmictec.2018.06.004 [doi]
PST - ppublish
SO  - Enzyme Microb Technol. 2018 Oct;117:41-44. doi: 10.1016/j.enzmictec.2018.06.004. 
      Epub 2018 Jun 19.