Cell Reports Physical Science,
Journal Year:
2023,
Volume and Issue:
4(6), P. 101433 - 101433
Published: June 1, 2023
Ammonia
production
is
a
critical
industrial
process,
and
mild
routes
to
recycle
nitrates
in
wastewater
could
be
promising
route
ammonia
synthesis.
In
this
study,
demonstrated
microbial
electrosynthesis
system
with
nitrate
an
electrode
as
electron
acceptors
donors,
respectively.
Based
on
the
bidirectional
extracellular
transfer
capability
of
Shewanella
oneidensis
MR-1,
our
electrosynthetic
achieves
maximum
rate
24.3
μg
h−1·mg
protein−1
82.5%
selectivity
33.1%
cathodic
efficiency
functions
for
several
cycles
over
30
days.
Electrochemical
analysis
suggests
that
cytochromes
c,
flavins,
flavin/c-cytochrome
combination
play
pivotal
role.
Charge
resistance
weakens
course
weeks,
resulting
easier
transfer.
Parallel
reaction
monitoring
proteomics
suggest
reversing
typical
"Mtr
pathway"
plays
role,
dissimilatory
pathway
used.
This
work
proposes
progressive
carry
out
synthesis
under
conditions.
ACS Nano,
Journal Year:
2023,
Volume and Issue:
17(21), P. 21018 - 21029
Published: Oct. 30, 2023
Electron
transfer
plays
an
important
role
in
various
catalytic
reactions
and
physiological
activities,
whose
altered
processes
may
change
efficiency
interfere
metabolic
processes.
In
this
study,
we
design
ultrasound
(US)-activated
piezoelectric
responsive
heterojunction
(PCN-222-BTO,
PCN:
porous
coordination
network),
which
can
the
electron
path
at
abiotic
abiotic-biotic
interfaces
under
US,
thus
achieving
a
rapid
(15
min)
efficient
bactericidal
effect
of
99.96%.
US-induced
polarization
BTO
generates
built-in
electric
field,
promotes
excited
from
PCN-222
to
PCN-222-BTO
interface,
thereby
increasing
level
reactive
oxygen
species
(ROS)
production.
Especially,
find
that
biological
bacterial
membrane
is
also
activated
MRSA-BTO
interface.
This
antibacterial
mode
results
down-regulated
ribosomal,
DNA
ATP
synthesis
related
genes
MRSA,
while
cell
ion
transport
are
up-regulated
due
synergistic
damage
ROS
disturbance
chain.
US
dual-interface
system
shows
excellent
therapeutic
for
treatment
MRSA-infected
osteomyelitis
model,
superior
clinical
vancomycin
therapy.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(5), P. 6235 - 6259
Published: Jan. 26, 2023
By
simulating
natural
photosynthesis,
the
desirable
high-value
chemical
products
and
clean
fuels
can
be
sustainably
generated
with
solar
energy.
Whole-cell-based
photosensitized
biohybrid
system,
which
innovatively
couples
excellent
light-harvesting
capacity
of
semiconductor
materials
efficient
catalytic
ability
intracellular
biocatalysts,
is
an
appealing
interdisciplinary
creature
to
realize
photodriven
synthesis.
In
this
review,
we
summarize
constructed
whole-cell-based
systems
in
different
application
fields,
including
carbon
dioxide
fixation,
nitrogen
hydrogen
production,
other
Moreover,
elaborate
charge
transfer
mechanism
studies
representative
biohybrids,
help
deepen
current
understanding
synergistic
process
between
photosensitizers
microorganisms,
provide
schemes
for
building
novel
biohybrids
less
electron
resistance,
advanced
productive
efficiency,
functional
diversity.
Further
exploration
field
has
prospect
making
a
breakthrough
on
biotic–abiotic
interface
that
will
opportunities
multidisciplinary
research.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: May 22, 2024
Abstract
Biotic-abiotic
hybrid
photocatalytic
system
is
an
innovative
strategy
to
capture
solar
energy.
Diversifying
energy
conversion
products
and
balancing
photoelectron
generation
transduction
are
critical
unravel
the
potential
of
photocatalysis.
Here,
we
harvest
in
a
dual
mode
for
Cu
2-x
Se
nanoparticles
biomineralization
seawater
desalination
by
integrating
merits
Shewanella
oneidensis
MR-1
biogenic
nanoparticles.
Photoelectrons
generated
extracellular
0
power
synthesis
through
two
pathways
that
either
cross
outer
membrane
activate
periplasmic
Cu(II)
reduction
or
directly
delivered
into
space
Cu(I)
evolution.
Meanwhile,
photoelectrons
drive
reversing
MtrABC
complexes
S.
.
Moreover,
unique
photothermal
feature
as-prepared
nanoparticles,
natural
hydrophilicity,
linking
properties
bacterium
offer
convenient
way
tailor
membranes
water
production.
This
study
provides
paradigm
source
sink
diversifying
biotic-abiotic
platforms.
Proceedings of the National Academy of Sciences,
Journal Year:
2024,
Volume and Issue:
121(29)
Published: July 10, 2024
Hydrogen
production
through
water
splitting
is
a
vital
strategy
for
renewable
and
sustainable
clean
energy.
In
this
study,
we
developed
an
approach
integrating
nanomaterial
engineering
synthetic
biology
to
establish
bionanoreactor
system
efficient
hydrogen
production.
The
periplasmic
space
(20
30
nm)
of
electroactive
bacterium,
Shewanella
oneidensis
MR-1,
was
engineered
serve
as
enhance
the
interaction
between
electrons
protons,
catalyzed
by
hydrogenases
generation.
To
optimize
electron
transfer,
used
microbially
reduced
graphene
oxide
(rGO)
coat
electrode,
which
improved
transfer
from
electrode
cells.
Native
MtrCAB
protein
complex
on
S.
self-assembled
iron
sulfide
(FeS)
nanoparticles
acted
in
tandem
facilitate
periplasm.
proton
transport,
MR-1
express
Gloeobacter
rhodopsin
(GR)
light-harvesting
antenna
canthaxanthin.
This
led
pumping
when
exposed
light,
resulting
35.6%
increase
rate
overexpression
native
[FeFe]-hydrogenase
further
56.8%.
achieved
yield
80.4
μmol/mg
protein/day
with
Faraday
efficiency
80%
at
potential
−0.75
V.
combines
strengths
both
biological
components,
providing
microbial
electrosynthesis.
