Small,
Journal Year:
2023,
Volume and Issue:
20(3)
Published: Sept. 7, 2023
Abstract
The
past
two
decades
have
witnessed
a
rapid
progress
in
the
development
of
surface
charge‐reversible
nanoparticles
(NPs)
for
drug
delivery
and
diagnosis.
These
NPs
are
able
to
elegantly
address
polycation
dilemma.
Converting
their
charge
from
negative/neutral
positive
at
target
site,
they
can
substantially
improve
drugs
diagnostic
agents.
By
specific
stimuli
like
shift
pH
redox
potential,
enzymes,
or
exogenous
such
as
light
heat,
reversal
NP
be
achieved
site.
activated
enhances
adhesion
cells
facilitates
cellular
uptake,
endosomal
escape,
mitochondrial
targeting.
Because
these
properties,
efficacy
incorporated
well
sensitivity
agents
essentially
enhanced.
Furthermore,
shown
overcome
biofilm
formed
by
pathogenic
bacteria
shuttle
antibiotics
directly
cell
membrane
microorganisms.
In
this
review,
up‐to‐date
design
emerging
applications
diagnosis
highlighted.
ACS Applied Materials & Interfaces,
Journal Year:
2022,
Volume and Issue:
14(12), P. 14059 - 14071
Published: March 17, 2022
Diabetic
foot
ulcer
is
a
serious
complication
in
diabetes
patients,
imposing
physical
and
economic
burden
to
patients
the
healthcare
system
as
whole.
Oxidative
stress
thought
be
key
driver
of
pathogenesis
such
ulcers.
However,
no
antioxidant
drugs
have
received
clinical
approval
date,
underscoring
need
for
further
development
medications.
Hydrogels
can
applied
directly
wound
site,
wherein
they
function
prevent
infection
maintain
local
moisture
concentrations,
addition
serving
reservoir
delivery
range
therapeutic
compounds
with
potential
expedite
healing
synergistic
manner.
Herein,
we
synthesized
Prussian
blue
nanoparticles
(PBNPs)
capable
efficiently
scavenging
reactive
oxygen
species
(ROS)
owing
their
ability
mimic
activity
catalase
(CAT),
peroxidase
(POD),
superoxide
dismutase
(SOD).
In
context
vitro
oxidative
stress,
these
PBNPs
were
able
protect
against
cytotoxicity,
mitochondria
from
stress-related
damage,
restore
nuclear
factor
erythroid
2-related
2
(NRF2)/heme
oxygenase-1
(HO-1)
pathway
activity.
To
expand
on
results
an
vivo
context,
prepared
thermosensitive
poly
(d,l-lactide)-poly(ethylene
glycol)-poly(d,l-lactide)
(PDLLA-PEG-PDLLA)
hydrogel
(PLEL)-based
dressing
which
had
been
homogenously
incorporated,
then
used
this
platform
controlled
PBNP
release.
The
resultant
PBNPs@PLEL
was
improve
diabetic
healing,
decrease
ROS
production,
promote
angiogenesis,
reduce
pro-inflammatory
interleukin-6
(IL-6)
tumor
necrosis
factor-α
(TNF-α)
levels
within
wounds.
Overall,
our
suggest
that
holds
great
promise
treatment
Bioactive Materials,
Journal Year:
2022,
Volume and Issue:
17, P. 49 - 70
Published: Feb. 1, 2022
As
a
kind
of
nature-derived
bioactive
materials,
polyphenol-based
hydrogels
possess
many
unique
and
outstanding
properties
such
as
adhesion,
toughness,
self-healing
due
to
their
specific
crosslinking
structures,
which
have
been
widely
used
in
biomedical
fields
including
wound
healing,
antitumor,
treatment
motor
system
injury,
digestive
disease,
oculopathy,
bioelectronics.
In
this
review,
starting
with
the
classification
common
hydrogels,
pyramid
evolution
process
from
structures
derived
then
applications
is
elaborated,
well
efficient
reverse
design
considerations
hydrogel
systems
are
proposed.
Finally,
existing
problems
development
prospects
these
materials
discussed.
It
hoped
that
perspective
review
can
promote
further
innovation
breakthroughs
future.
ACS Nano,
Journal Year:
2023,
Volume and Issue:
17(12), P. 11492 - 11506
Published: June 7, 2023
Ferroptosis
therapy
(FT)
efficacy
of
tumors
suffers
from
a
relatively
low
concentration
Fenton
agents,
limited
hydrogen
peroxide
(H2O2)
content,
and
insufficient
acidity
in
the
tumor
environment
(TME),
which
are
unfavorable
for
reactive
oxygen
species
(ROS)
generation
based
on
or
Fenton-like
reactions.
The
glutathione
(GSH)
overexpression
TME
can
scavenge
ROS
abate
FT
performance.
In
this
study,
strategy
storm
specifically
initiated
by
our
developed
nanoplatforms
(TAF-HMON-CuP@PPDG)
is
proposed
high-performance
tumors.
GSH
initiates
HMON
degradation,
resulting
tamoxifen
(TAF)
copper
(CuP)
release
TAF3-HMON-CuP3@PPDG.
released
TAF
leads
to
enhanced
acidification
within
cells,
reacts
with
CuP
producing
Cu2+
H2O2.
reaction
between
H2O2
generates
Cu+,
that
Cu+
Cu2+,
forming
cyclic
catalysis
effect.
generate
GSSG.
increased
accelerate
consumption
decreases
peroxidase
4
(GPX4)
expression.
All
above
reactions
cells
FT,
demonstrated
cancer
tumor-bearing
mice.
Materials Today Bio,
Journal Year:
2022,
Volume and Issue:
15, P. 100264 - 100264
Published: April 20, 2022
Polydopamine
nanoparticles
(PDA
NPs)
are
an
appealing
biomimetic
photothermal
agent
for
antibacterial
treatment
because
of
their
long-term
safety,
excellent
photostability,
accessible
manufacturing,
and
good
biodegradability.
However,
the
low
conversion
efficiency
(PCE)
PDA
NPs
requires
high-power
near-infrared
light
irradiation,
which
severely
restricts
practical
application.
In
this
work,
PDA@Cu
were
fabricated
by
growing
Cu
in
situ
on
surface
then
introduced
into
a
polyelectrolyte
hydrogel
precursor
(cationic
polyethyleneimine/anionic
pectin,
named
as
CPAP).
The
formulated
platform
possessed
high
PCE
(55.4%),
almost
twice
much
pure
(30.8%).
Moreover,
designed
CPAP/PDA@Cu
captured
killed
some
bacteria
electrostatic
adsorption,
helped
enhance
performance.
As
expected,
formed
that
combined
advantageous
features
(high
PCE)
CPAP
matrix
(inherent
activity
preventing
aggregation)
can
efficiently
kill
both
vitro
vivo
under
help
laser
irradiation.
Taken
together,
study
offers
promising
strategy
constructing
facile
safe
PDA-based
therapy.
Journal of Nanobiotechnology,
Journal Year:
2022,
Volume and Issue:
20(1)
Published: March 12, 2022
Despite
exceptional
morphological
and
physicochemical
attributes,
mesoporous
silica
nanoparticles
(MSNs)
are
often
employed
as
carriers
or
vectors.
Moreover,
these
conventional
MSNs
suffer
from
various
limitations
in
biomedicine,
such
reduced
drug
encapsulation
efficacy,
deprived
compatibility,
poor
degradability,
resulting
therapeutic
outcomes.
To
address
limitations,
several
modifications
have
been
corroborated
to
fabricating
hierarchically-engineered
terms
of
tuning
the
pore
sizes,
modifying
surfaces,
engineering
siliceous
networks.
Interestingly,
further
advancements
engineered
lead
generation
highly
complex
nature-mimicking
structures,
Janus-type,
multi-podal,
flower-like
architectures,
well
streamlined
tadpole-like
nanomotors.
In
this
review,
we
present
explicit
discussions
relevant
advanced
hierarchical
architectures
different
fields
including
delivery,
bioimaging,
tissue
engineering,
miscellaneous
applications,
photoluminescence,
artificial
enzymes,
peptide
enrichment,
DNA
detection,
biosensing,
among
others.
Initially,
give
a
brief
overview
diverse,
innovative
stimuli-responsive
(pH,
light,
ultrasound,
thermos)-
targeted
delivery
strategies,
along
with
on
recent
cancer
immune
therapy
applicability
other
ailments
related
cardiac,
vascular,
nervous
systems,
diabetes.
Then,
provide
initiatives
taken
so
far
clinical
translation
silica-based
materials
their
scope
towards
translation.
Finally,
summarize
review
interesting
perspectives
lessons
learned
exploring
biomedical
applications
requirements
be
explored.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(1)
Published: Sept. 15, 2023
Abstract
The
therapeutic
application
of
STING
agonists
in
various
malignancies
has
been
limited
by
factors
such
as
the
inability
systemic
administration
and
immunosuppressive
tumor
microenvironment.
Herein,
this
work
reports
a
mesoporous
polydopamine‐based
multifunctional
nanoplatform
loaded
with
agonist
MSA‐2
chelated
Mn
2+
for
synergistic
photothermal
activation‐based
immunotherapy.
effectively
delivers
to
site
intelligently
releases
its
contents
through
acid
degradation,
facilitated
effect.
Additionally,
thermal
ablation
tissue
can
induce
immunogenic
cell
death,
which
helps
alleviate
microenvironment,
thereby
enhancing
efficacy
MSA‐2.
Furthermore,
works
dual‐acting
sensitizer
MRI
contrast
agent
not
only
boosts
immune
response
but
also
allows
real‐time
tracking
nanoplatform.
This
strategy
is
proved
highly
efficacious
both
impeding
primary/metastatic
eliciting
robust
tumor‐specific
response.
Collectively,
an
effective
delivery
synergized
therapy
pathway
activation‐mediated
immunotherapy
highlighted
here
provide
new
ideas
strategies
optimizing
combination
cancer
treatment.