Vestnik Moskovskogo universiteta Seria 16 Biologia,
Год журнала:
2024,
Номер
79(№3, 2024), С. 227 - 234
Опубликована: Янв. 1, 2024
Graphene
derivatives
(oxide
and
its
reduced
form)
are
promising
carbon
nanomaterials
(CNMs)
used
in
industry,
electronics,
medicine
biotechnology.
The
aim
of
the
work
was
to
study
effect
graphene
oxide
(GO)
form
(rGO)
on
formation
eradication
Candida
maltosa
VKPM
Y-194
biofilms,
metabolic
activity,
intracellular
ATP
content
permeability
cytoplasmic
membrane
biofilm
cells.
It
found
that
GO
rGO
slightly
suppress
yeast
formation,
decrease
biomass
during
growth
presence
is
significantly
greater
than
cell
with
rGO.
destruction
mature
7-day
biofilms
CNMs
control,
3-day
ones.
At
same
time,
activity
cells,
assessed
by
reduction
tetrazolium
salt
(methyl
thiazolyl
reagent),
upon
contact
cells
CNM
for
4
hours,
increased
exposed
grown
exceeded
but
lower
after
4-hour
a
nutrient
medium
without
CNM.
greatest
negative
which
expressed
an
increase
permeability,
exerted
exposure
biofilm.
C.
more
pronounced
when
rGO,
higher
Complete
inhibition
complete
under
have
not
been
established.
International Journal of Molecular Sciences,
Год журнала:
2025,
Номер
26(10), С. 4728 - 4728
Опубликована: Май 15, 2025
Photothermal
therapy
combines
the
effects
of
near-infrared
laser
(NIR
laser)
and
strong
light-absorbing
materials
to
combat
pathogens
unwanted
biofilms.
Graphene
derivatives
have
a
negative
effect
on
microorganisms,
combination
NIR
irradiation
carbon
nanomaterials
(CNMs)
can
enhance
their
antibacterial
effect.
This
investigation
is
devoted
determination
expression
level
bacterial
stress
response
genes
(soxS
rpoS)
under
graphene
oxide
(GO),
reduced
(rGO),
(1270
nm).
GO,
rGO
separately
in
presence
cause
an
increase
rpoS
associated
with
general
bacteria.
GO
do
not
change
soxS
cell
oxidative
stress,
decrease
it
oxidizing
agent
paraquat
(PQ).
The
increases
irradiation,
but
decreases
derivatives.
rGO,
formation
eradication
E.
coli
biofilms
was
studied.
suppresses
metabolic
rate
intracellular
ATP
content
by
94
99.6%,
respectively.
CNMs
are
shown
reduce
biofilm
biomass
extracellular
polymeric
substances
(EPSs),
both
exopolysaccharides
protein
matrix.
may
be
effective
means
combating
emerging
mature
Gram-negative
Molecules,
Год журнала:
2024,
Номер
29(15), С. 3661 - 3661
Опубликована: Авг. 2, 2024
The
advancement
of
traditional
sample
preparation
techniques
has
brought
about
miniaturization
systems
designed
to
scale
down
conventional
methods
and
advocate
for
environmentally
friendly
analytical
approaches.
Although
often
referred
as
green
strategies,
the
effectiveness
these
is
intricately
linked
properties
sorbent
utilized.
Moreover,
fully
embrace
implementing
methods,
it
crucial
innovate
develop
new
or
solid
phases
that
enhance
adaptability
miniaturized
across
various
matrices
analytes.
Graphene-based
materials
exhibit
remarkable
versatility
modification
potential,
making
them
ideal
sorbents
strategies
due
their
high
surface
area
functional
groups.
Their
notable
adsorption
capability
alignment
with
synthesis
approaches,
such
bio-based
graphene
materials,
enable
use
less
creation
biodegradable
enhancing
eco-friendly
aspects
towards
practices.
Therefore,
this
study
provides
an
overview
different
types
hybrid
graphene-based
well
applications
in
techniques,
focusing
on
offline
methodologies
stir
bar
sorptive
extraction
(SBSE),
microextraction
by
packed
(MEPS),
pipette-tip
solid-phase
(PT-SPE),
disposable
pipette
(DPX),
dispersive
micro-solid-phase
(d-µ-SPE),
magnetic
(MSPE).
