Journal of Materials Chemistry B,
Journal Year:
2023,
Volume and Issue:
11(39), P. 9386 - 9403
Published: Jan. 1, 2023
Antimicrobial
mechanisms
of
functionalized
carbon
dots:
covalent
and
non-covalent
interactions,
reactive
oxygen
species,
photothermal
effect,
size
effect
(
E.
coli
was
used
as
a
model).
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
62(7)
Published: Dec. 24, 2022
The
lack
of
systematic
structural
resolution
makes
it
difficult
to
build
specific
transition-metal-atom-doped
carbonized
polymer
dots
(TMA-doped
CPDs).
Herein,
the
structure-activity
relationship
between
Cu
atoms
and
CPDs
was
evaluated
by
studying
peroxidase-like
properties
Glu-Cu-CPDs
prepared
using
copper
glutamate
(Glu)
with
a
Cu-N2
O2
initial
structure.
results
showed
that
bound
in
form
C2
,
indicating
Cu-O
bonds
changed
into
Cu-C
under
hydrothermal
conditions.
This
phenomenon
also
observed
other
copper-doped
CPDs.
Moreover,
carboxyl
amino
groups
content
decreased
after
copper-atom
doping.
Theoretical
calculations
revealed
dual-site
catalytic
mechanism
for
catalyzing
H2
.
detection
intracellular
suggested
their
application
prospects.
Our
study
provides
an
in-depth
understanding
formation
TMA-doped-CPDs,
allowing
generation
TMA-doped-CPDs.
Materials Today Bio,
Journal Year:
2023,
Volume and Issue:
20, P. 100635 - 100635
Published: April 15, 2023
An
imbalance
of
bacteria
in
oral
environment
can
lead
to
a
variety
diseases,
such
as
periodontal
disease,
dental
caries,
and
peri-implant
inflammation.
In
the
long
term,
view
increasing
bacterial
resistance,
finding
suitable
alternatives
traditional
antibacterial
methods
is
an
important
research
today.
With
development
nanotechnology,
agents
based
on
nanomaterials
have
attracted
much
attention
field
due
their
low
cost,
stable
structures,
excellent
properties
broad
spectrum.
Multifunctional
break
through
limitations
single
therapy
functions
remineralization
osteogenesis
basis
antibacterial,
which
has
made
significant
progress
long-term
prevention
treatment
diseases.
this
review,
we
summarized
applications
metal
oxides,
organic
composite
recent
five
years.
These
not
only
inactivate
bacteria,
but
also
achieve
more
efficient
diseases
by
improving
materials
themselves,
enhancing
precision
targeted
delivery
drugs
imparting
richer
functions.
Finally,
future
challenges
untapped
potential
are
elaborated
demonstrate
prospects
field.
Advanced Healthcare Materials,
Journal Year:
2023,
Volume and Issue:
12(25)
Published: June 16, 2023
In
recent
years,
antimicrobial
resistance
(AMR)
has
become
one
of
the
greatest
threats
to
human
health.
There
is
an
urgent
need
develop
new
antibacterial
agents
effectively
treat
AMR
infection.
Herein,
a
novel
nanozyme
platform
(Cu,N-GQDs@Ru-NO)
prepared,
where
Cu,N-doped
graphene
quantum
dots
(Cu,N-GQDs)
are
covalently
functionalized
with
nitric
oxide
(NO)
donor,
ruthenium
nitrosyl
(Ru-NO).
Under
808
nm
near-infrared
(NIR)
light
irradiation,
Cu,N-GQDs@Ru-NO
demonstrates
nicotinamide
adenine
dinucleotide
(NADH)
dehydrogenase-like
activity
for
photo-oxidizing
NADH
NAD+
,
thus
disrupting
redox
balance
in
bacterial
cells
and
resulting
death;
meanwhile,
onsite
NIR
light-delivered
NO
eradicates
methicillin-resistant
Staphylococcus
aureus
(MRSA)
biofilms,
promotes
wound
healing;
furthermore,
shows
excellent
photothermal
effect
that
enhances
efficacy
as
well.
With
combination
dehydrogenase
activity,
therapy,
gas
displays
both
vitro
vivo
MRSA
infection
biofilm
eradication,
which
provides
therapeutic
modality
treating
inflammatory
wounds.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
unknown
Published: Aug. 11, 2023
Oral
biofilms,
which
are
also
known
as
dental
plaque,
the
culprit
of
a
wide
range
oral
diseases
and
systemic
diseases,
thus
contributing
to
serious
health
risks.
The
manner
how
achieve
good
control
biofilms
has
been
an
increasing
public
concern.
Novel
antimicrobial
biomaterials
with
highly
controllable
fabrication
functionalization
have
proven
be
promising
candidates.
However,
previous
reviews
generally
emphasized
physicochemical
properties,
action
mode,
application
effectiveness
those
biomaterials,
whereas
insufficient
attention
given
design
rationales
tailored
different
infection
types
scenarios.
To
offer
guidance
for
better
diversification
anti-oral-biofilm
this
review
details
up-to-date
in
three
aspects:
core
strategies
combating
biofilm,
well
advanced
antibiofilm
capacity
multiple
functions
based
on
improvement
or
combination
abovementioned
strategies.
Thereafter,
insights
existing
challenges
future
biomaterial-assisted
biofilm
treatments
proposed,
hoping
provide
theoretical
basis
reference
subsequent
biomaterials.
Journal of Materials Chemistry B,
Journal Year:
2023,
Volume and Issue:
11(39), P. 9386 - 9403
Published: Jan. 1, 2023
Antimicrobial
mechanisms
of
functionalized
carbon
dots:
covalent
and
non-covalent
interactions,
reactive
oxygen
species,
photothermal
effect,
size
effect
(
E.
coli
was
used
as
a
model).