ACS Applied Nano Materials,
Journal Year:
2024,
Volume and Issue:
7(24), P. 28788 - 28797
Published: Dec. 11, 2024
The
primary
challenges
for
nanozyme-mediated
tumor
catalytic
therapy
are
the
insufficient
activity
of
nanozymes
and
inadequate
endogenous
hydrogen
peroxide
(H2O2)
levels
in
microenvironment
(TME).
To
address
these
challenges,
FeMOF/Pt/GOx
(FMPG),
a
TME-responsive
cascade
nanoreactor,
was
designed
photothermal-cascade
antitumor
therapy.
FMPG
comprises
MIL-100(Fe),
an
iron-based
metal–organic
framework
material,
loaded
with
ultrasmall
platinum
nanoparticles
(Pt
NPs)
glucose
oxidase
(GOx).
Within
TME,
degrades
presence
high
phosphate
concentrations,
releasing
GOx,
Fe2+,
Pt
NPs.
GOx
consumes
glucose,
reducing
ATP
cells
inducing
starvation
state
cells.
Subsequently,
H2O2
produced
by
overexpressed
reacts
Fe2+
to
generate
hydroxyl
radicals,
facilitating
NPs
exhibit
catalase-like
catalyze
production
oxygen
from
H2O2,
further
enhancing
starvation.
Under
808
nm
laser
irradiation,
as-prepared
composites
localized
heat,
enabling
effective
photothermal
This
nanoreactor
demonstrates
efficient
inhibition
situ
consumption
compounds,
promoting
development
precise
synergetic
cancer
therapies
spatiotemporal
controllability.
Materials Horizons,
Journal Year:
2024,
Volume and Issue:
11(23), P. 5815 - 5842
Published: Jan. 1, 2024
The
current
state-of-the
art
on
NIR-II-activated
photosensitizers
and
their
applications
for
the
deep
tumor
treatment,
as
well
recent
efforts
that
combine
NIR-II
activated
PDT
with
other
complementary
therapeutic
routes.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 15, 2024
Exploring
effective
antibacterial
approaches
for
targeted
treatment
of
pathogenic
bacterial
infections
with
reduced
drug
resistance
is
great
significance.
Combinational
modality
that
leverages
different
therapeutic
components
can
improve
the
overall
effectiveness
and
minimize
adverse
effects,
thus
displaying
considerable
potential
against
infections.
Herein,
red
blood
cell
membrane
fuses
macrophage
to
develop
hybrid
shell,
which
further
camouflages
around
drug-loaded
liposome
fabricate
biomimetic
(AB@LRM)
precise
therapy.
Specifically,
photoactive
agent
black
phosphorus
quantum
dots
(BPQDs)
classical
antibiotics
amikacin
(AM)
are
loaded
in
AB@LRM
accurately
target
inflammatory
sites
through
guidance
long
residence
capability
membrane,
eventually
exerting
efficacious
activities.
Besides,
due
excellent
photothermal
photodynamic
properties,
BPQDs
act
as
an
efficient
when
exposed
near-infrared
laser
irradiation,
dramatically
increasing
sensitivity
bacteria
antibiotics.
Consequently,
synergistic
sterilizing
effect
produced
by
restricts
resistance.
Upon
shows
superior
anti-inflammatory
properties
models
P.
aeruginosa-infected
pneumonia
wounds.
Hence,
this
light-activatable
nanoplatform
good
biocompatibility
presents
advance
clinical
development
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(17), P. 21689 - 21698
Published: April 17, 2024
Plasmonic
nanozymes
bring
enticing
prospects
for
catalytic
sterilization
by
leveraging
plasmon-engendered
hot
electrons.
However,
the
interface
between
plasmons
and
as
mandatory
path
of
electrons
receives
little
attention,
mechanisms
plasmonic
still
remain
to
be
elucidated.
Herein,
a
carbon-dot
nanozyme
(FeCG)
is
developed
electrostatically
assembling
iron-doped
carbon
dots
(Fe-CDs)
with
gold
nanorods.
The
energy
harvesting
hot-electron
migration
are
remarkably
expedited
spontaneous
organic-inorganic
heterointerface
holding
Fermi
level-induced
interfacial
electric
field.
accumulated
then
fully
utilized
conductive
Fe-CDs
boost
enzymatic
catalysis
toward
overproduced
reactive
oxygen
species.
By
synergizing
localized
heating
from
decay,
FeCG
achieves
rapid
potent
disinfection
an
antibacterial
efficiency
99.6%
on
Escherichia
coli
within
5
min
also
effective
(94.2%)
against
Staphylococcus
aureus.
Our
work
presents
crucial
insights
into
in
advanced
biocidal
nanozymes.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(28)
Published: May 30, 2024
Abstract
To
overcome
current
limitations
in
photoimmunotherapy,
such
as
insufficient
tumor
antigen
generation
and
a
subdued
immune
response,
novel
photo‐/metallo
dual‐mode
immunotherapeutic
agent
(PMIA)
is
introduced
for
potent
near‐infrared
(NIR)
light‐triggered
cancer
therapy.
PMIA
features
dumbbell‐like
AuPt
heterostructure
decorated
with
starry
Pt
nanoclusters,
meticulously
engineered
enhancing
plasmonic
catalysis
through
multi‐dimensional
regulation
of
growth
on
Au
nanorods.
Under
NIR
laser
exposure,
end‐tipped
nanoclusters
induce
efficient
electron‐hole
spatial
separation
along
the
longitudinal
axis,
resulting
radial
axial
electron
distribution
polarization,
conferring
unique
anisotropic
properties
to
PMIA.
Additionally,
sides
nanorods
augment
local
enrichment
field.
Validated
finite‐difference
time‐domain
analysis
Raman
scattering,
this
configuration
fosters
enrichment,
facilitating
robust
reactive
oxygen
species
photoimmunotherapy.
Moreover,
facilitate
2+
ion
release,
instigating
intranuclear
DNA
damage
inducing
synergistic
immunogenic
cell
death
(ICD)
metalloimmunotherapy.
Consequently,
elicits
abundant
danger‐associated
molecular
patterns,
promotes
T
infiltration,
triggers
systemic
responses,
effectively
treating
primary
distant
tumors,
inhibiting
metastasis
vivo.
This
study
unveils
pioneering
ICD
amplification
strategy
driven
by
light,
synergistically
integrating
photoimmunotherapy
metalloimmunotherapy,
culminating
photometalloimmunotherapy.
New Journal of Chemistry,
Journal Year:
2024,
Volume and Issue:
48(24), P. 10990 - 11002
Published: Jan. 1, 2024
Molybdenum
disulfide
(MoS
2
)
nanosheets
can
interact
favourably
with
human
haemoglobin
and
induce
apoptosis
in
cancer
cells
via
NIR-excited
photothermal
therapy.