Journal of Environmental Management,
Journal Year:
2025,
Volume and Issue:
376, P. 124529 - 124529
Published: Feb. 15, 2025
Carbon
transformations
in
the
environment
are
extremely
important
due
to
observed
climate
changes.
Various
types
of
pollution
resulting
from
human
activity
a
factor
that
modifies
occurrence
these
natural
processes
environment.
One
pollutants
is
vanadium,
presence
which
constantly
increasing
For
this
reason,
aim
study
was
investigate
influence
vanadium
(the
most
toxic
form,
pentavalent)
on
efficiency
methane
oxidation
Leptosol
soil.
Our
research
allowed
us
identify
methanotrophs
genera
Methylobacter
and
Methylomicrobium
The
negatively
correlated
with
doses
tested.
A
decrease
abundance
increased
188
500
mg
kg-1,
reflected
methanotrophic
activity.
starting
lower
dose
(18.39
kg-1).
both
positively
activity,
suggesting
may
be
involved
also
indicated
microorganisms
whose
stimulated
by
addition
including:
Nocardioides,
Rubrobacter,
Bacillus,
Paenibacillus,
Streptomyces,
indicates
they
have
defense
mechanisms
against
participate
lowering
its
concentration
There
were
those
clearly
reduced,
such
as
Acidobacter,
Pseudomonas,
Hassallia,
Gemmatimonas,
Methylotenera.
This
provides
new
insight
into
how
contamination
regulates
methanotrophy
process
soil
Environmental Science & Technology,
Journal Year:
2023,
Volume and Issue:
57(48), P. 19921 - 19931
Published: Nov. 7, 2023
While
microbial
reduction
has
gained
widespread
recognition
for
efficiently
remediating
environments
polluted
by
toxic
metavanadate
[V(V)],
the
pool
of
identified
V(V)-reducing
strains
remains
rather
limited,
with
vast
majority
belonging
to
bacteria
and
fungi.
This
study
is
among
first
confirm
V(V)
capability
Streptomyces
microflavus,
a
representative
member
ubiquitous
actinomycetes
in
environment.
A
removal
efficiency
91.0
±
4.35%
was
achieved
during
12
days
operation,
maximum
specific
growth
rate
0.073
d–1.
bioreduced
insoluble
V(IV)
precipitates.
took
place
both
intracellularly
extracellularly.
Electron
transfer
enhanced
bioreduction
increased
electron
transporters.
The
electron-transfer
pathways
were
revealed
through
transcriptomic,
proteomic,
metabolomic
analyses.
Electrons
might
flow
either
respiratory
chain
reduce
intracellular
or
cytochrome
c
on
outer
membrane
extracellular
reduction.
Soluble
riboflavin
quinone
also
possibly
mediated
Glutathione
deliver
electrons
Bioaugmentation
aquifer
sediment
S.
microflavus
accelerated
strain
could
successfully
colonize
foster
positive
correlations
indigenous
microorganisms.
offers
new
resources
bioremediation
improve
understanding
involved
molecular
mechanisms.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(3), P. 2464 - 2474
Published: Jan. 10, 2024
Abundant
smelting
ash
is
discharged
during
pyrometallurgical
vanadium
(V)
production.
However,
its
associated
V
speciation
and
resultant
ecological
impact
have
remained
elusive.
In
this
study,
in
influence
on
the
metabolism
of
soil
microorganisms
were
investigated.
Smelting
ashes
from
smelters
contained
abundant
(19.6-115.9
mg/g).
V(V)
was
dominant
species
for
soluble
V,
while
solid
primarily
existed
bioavailable
forms.
Previously
unrevealed
nanoparticles
(V-NPs)
prevalently
detected,
with
a
peak
concentration
1.3
×
10
Chemical Reviews,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 16, 2025
Vanadium
is
a
transition
metal
with
important
industrial,
technological,
biological,
and
biomedical
applications
widespread
in
the
environment
living
beings.
The
different
reactions
that
vanadium
compounds
(VCs)
undergo
presence
of
proteins,
nucleic
acids,
lipids
metabolites
under
mild
physiological
conditions
are
reviewed.
In
present
naturally
or
through
anthropogenic
sources,
latter
having
an
environmental
impact
caused
by
dispersion
VCs
atmosphere
aquifers.
has
versatile
chemistry
interconvertible
oxidation
states,
variable
coordination
number
geometry,
ability
to
form
polyoxidovanadates
various
nuclearity
structures.
If
VC
added
water-containing
it
can
hydrolysis,
ligand-exchange,
redox,
other
types
changes,
determined
speciation
vanadium.
Importantly,
solution
likely
differ
from
introduced
into
system
varies
concentration.
Here,
hydrolytic
ligand-exchange
chemical
reactions,
influence
pH,
concentration,
salt,
specific
solutes,
biomolecules,
on
described.
One
our
goals
this
work
highlight
need
for
assessment
speciation,
so
beneficial
toxic
species
might
be
identified
mechanisms
action
elucidated.
Journal of Geophysical Research Biogeosciences,
Journal Year:
2024,
Volume and Issue:
129(7)
Published: July 1, 2024
Abstract
In
the
soils
of
vanadium
(V)
smelters,
a
diverse
array
microorganisms
relies
on
metabolic
activities
for
survival
amid
stress.
However,
characteristics
and
functions
soil
microbiomes
in
V
mining
environments
remain
unexplored
continental
scale.
This
study
thoroughly
investigates
microbial
diversity,
community
assembly,
functional
potential
microbiome
across
90
smelters
China.
Alpha
diversity
decreases
significantly
along
gradient,
with
emerging
as
primary
factor
influencing
structure,
followed
by
other
environmental,
climatic,
geographic
factors.
The
null
model
reveals
that
induces
homogeneous
selection,
shaping
co‐occurrence
patterns
leading
to
increased
number
positive
associations,
particularly
keystone
genera
such
f_Gemmatimonadaceae
,
Nocardioides
Micromonospora
Rubrobacter
under
higher
concentrations
(>559.6
mg/kg).
Moreover,
metagenomic
analysis
yields
67
metagenome‐assembled
genomes,
unraveling
pathways
taxa
their
likely
involvement
V(V)
reduction
process.
Nitrate
nitrite
reductase
(
nirK
narG
),
mtrABC
are
found
be
taxonomically
affiliated
.
sp,
FEN‐1250
etc.
Additionally,
reverse
citric
acid
cycle
(rTCA)
serves
carbon
fixation
pathway,
synthesizing
alternative
energy
putative
reducers,
highlighting
potentially
synergistic
relationship
between
autotrophic
heterotrophic
processes
supports
survival.
Our
findings
comprehensively
uncover
driving
forces
behind
variation
stress,
revealing
robust
strategies
possibly
employed
indigenous
mitigate
impact
V.
These
insights
hold
applications
bioremediation.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 20, 2024
Abstract
Photothermal
therapy
(PTT)
is
increasingly
favored
as
a
treatment
option
for
lung
cancer,
leading
cause
of
cancer‐related
death.
However,
the
effectiveness
PTT
hampered
by
both
tumor‐associated
and
treatment‐related
inflammatory
reactions.
Consequently,
there
pressing
need
innovative
PTT‐based
platforms
capable
mitigating
inflammation
postcancer
treatment.
Herein,
2D
vanadium
carbide
(V
2
C)
MXenzyme
nanosheets
via
straightforward
exfoliation
intercalation
process
are
successfully
synthesized.
The
V
C
demonstrates
robust
photothermal
effect,
which
varied
with
concentration,
density,
irradiation
duration
when
exposed
to
808
nm
near‐infrared
light.
Notably,
exhibits
ability
eliminate
A549
cancer
cells
in
vitro
vivo
through
PTT.
Additionally,
synthesized
exhibited
various
enzyme‐like
activities,
resembling
reactive
oxygen
species–mimetic
enzymes,
including
superoxide
dismutase,
catalase,
peroxidase,
glutathione
thiol
peroxidase.
significantly
curtailed
settings.
Furthermore,
gene
sequencing
analysis
inflammation‐related
genes
responding
performed
identified
HSPA1A
differentially
expressed
gene.
expression
correlated
infiltration
immune
adenocarcinoma.
Thus,
may
serve
revalorization
platform
suppress
tumors
reduce
inflammation.
