Small Methods,
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 1, 2024
Abstract
Sonodynamic
therapy
(SDT)
as
an
emerging
method
for
cancer
has
encountered
difficulty
in
insufficient
production
of
reactive
oxygen
species
(ROS),
especially
tumor
microenvironment
(TME)
with
elevated
antioxidants
and
hypoxic
conditions.
In
this
work,
the
authors
have
fabricated
heterostructured
manganese
dioxide
(MnO
2
)‐coated
BaTiO
3
nanoparticles
(BTO@M
NPs)
a
piezoelectric
sonosensitizer,
which
exhibits
capacity
remodeling
TME
multienzyme‐like
catalysis
boosting
SDT.
Benefitting
from
piezotronic
effect,
formation
p
‐
n
junction
between
MnO
BTO
built‐in
electric
field
band
bending
efficiently
promotes
separation
charge
carriers,
facilitating
generation
superoxide
anion
(•O
−
)
hydroxyl
radical
(•OH)
under
ultrasound
(US)
stimulation.
Moreover,
BTO@M
NPs
can
catalyze
overexpressed
hydrogen
peroxide
(H
O
to
produce
replenishing
gas
source
SDT,
also
deplete
antioxidant
glutathione
(GSH),
realizing
remodeling.
During
process,
reduced
Mn(II)
convert
H
into
•OH,
further
amplifying
cellular
oxidative
damage.
With
these
combination
effects,
versatile
exhibit
prominent
cytotoxicity
growth
inhibition
against
4T1
breast
cancer.
This
work
provides
feasible
strategy
constructing
high‐efficiency
sonosensitizers
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: Sept. 30, 2022
Theranostic
sonosensitizers
with
combined
sonodynamic
and
near
infrared
(NIR)
imaging
modes
are
required
for
guided
therapy
(SDT).
It
is
challenging,
however,
to
realize
a
single
material
that
simultaneously
endowed
both
NIR
emitting
activities.
Herein,
we
report
the
design
of
class
NIR-emitting
from
phosphorescent
carbon
dot
(CD)
narrow
bandgap
(1.62
eV)
long-lived
excited
triplet
states
(11.4
μs),
two
which
can
enhance
SDT
as
thermodynamically
dynamically
favorable
factors
under
low-intensity
ultrasound
irradiation,
respectively.
The
NIR-phosphorescent
CDs
identified
bipolar
quantum
dots
containing
p-
n-type
surface
functionalization
regions
drive
spatial
separation
e--h+
pairs
fast
transfer
reaction
sites.
Importantly,
cancer-specific
targeting
high-level
intratumor
enrichment
theranostic
achieved
by
cancer
cell
membrane
encapsulation
precision
complete
eradication
solid
tumors
injection
irradiation.
These
results
will
open
up
promising
approach
engineer
materials
tumor
therapy.
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
34(49)
Published: Oct. 4, 2022
The
development
of
efficient
organic
sonosensitizers
is
crucial
for
sonodynamic
therapy
(SDT)
in
the
field
cancer
treatment.
Herein,
a
new
strategy
based
on
triarylboron-doped
acenethiophene
scaffolds
presented.
attachment
boron
to
linear
acenethiophenes
lowers
lowest
unoccupied
molecular
orbital
(LUMO)
energy,
resulting
redshifted
absorptions
and
emissions.
After
encapsulation
with
amphiphilic
polymer
DSPE-mPEG2000
,
it
found
that
nanostructured
BAnTh-NPs
BTeTh-NPs
(nanoparticles
BAnTh
BTeTh)
shows
hydroxyl
radical
(•
OH)
generation
under
ultrasound
(US)
irradiation
aqueous
solution
almost
no
phototoxicity,
which
can
overcome
shortcomings
O2
-dependent
SDT
avoid
potential
cutaneous
phototoxicity
issue.
In
vitro
vivo
therapeutic
results
validate
boron-doped
as
enable
high
efficiency
low
good
biocompatibility,
indicating
boron-functionalization
acenes
promising
toward
SDT.
ACS Nano,
Journal Year:
2021,
Volume and Issue:
16(1), P. 1346 - 1357
Published: Dec. 27, 2021
Water
treatment
is
crucial
to
improve
the
water
quality
and
reduce
diarrheal
chronological
diseases
caused
by
excessive
discharge
of
organic
dyes
other
waste.
The
development
expansion
efficient
catalysts
for
degradation
sterilization
has
attracted
widespread
attention.
Herein,
we
report
an
example
a
porphyrin-based
two-dimensional
layered
metal-organic
framework
(MOF)
(2DZnTcpp)
its
sono-/photocatalytic
bactericidal
activity.
dislocated
layers
effectively
avoid
close
π-π
stacking
provide
porous
space
oxygen/water/dye
contact.
introduction
Zn
ions
increases
spin
orbital
coupling
through
heavy
atom
effect
promotes
intersystem
crossing
process
singlet
oxygen
generation.
effective
ligand-to-metal
charge
transfer
open
catalytic
sites
also
facilitate
splitting
hydroxyl
radical
These
features
together
promote
reactive
species
(ROS)
generation
2DZnTcpp
under
light
illumination
or
ultrasound
sonication.
It
worth
noting
that
with
high
specific
surface
area
porosity
shows
dye
Moreover,
could
largely
inactivate
Escherichia
coli
irradiation
(the
power
1
sun)
sonication
30
min
efficiencies
over
99.99999%.
This
work
provides
approach
design
synthesis
MOF-based
sono-/photocatalysts
used
in
purification
textile
wastewater
committed
establishment
more
efficient,
fast,
environmentally
friendly
system.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
61(44)
Published: Sept. 9, 2022
Abstract
Owing
to
the
high
depth
of
tissue
penetration,
non‐invasiveness,
and
controllability,
ultrasound
(US)‐mediated
sonodynamic
therapy
(SDT)
has
shown
broad
application
prospects
for
tumor
treatment.
However,
electron‐hole
separation
inefficiency
sonosensitizers
hypoxia
remain
two
major
challenges
limiting
effect
SDT.
Here,
ultrafine
photoetched
bismuth
vanadate
(BiVO
4
)
nanorods
modified
with
DSPE‐PEG
2000
(PEBVO@PEG
NRs)
were
fabricated
achieve
in
situ
self‐supply
oxygen
(O
2
reactive
species
(ROS)
hypoxic
therapy.
The
photoetching
approach
could
enhance
charge
by
inducing
enriched
vacancies
on
surface
BiVO
,
thereby
improving
generation
efficiency
ROS
O
.
PEBVO@PEG
overcome
main
obstacles
traditional
SDT
process
show
promising
therapeutic
effects,
thus
providing
new
strategies
performance
sonosensitizer
elimination.
Analytical Chemistry,
Journal Year:
2022,
Volume and Issue:
94(9), P. 3881 - 3887
Published: Feb. 22, 2022
The
prominent
pathological
feature
of
fatty
liver
disease
lesions
is
excessive
fat
accumulation
in
lipid
droplets
hepatocytes.
Thus,
developing
fluorescent
droplet-specific
probes
with
high
permeability
and
a
imaging
contrast
provides
robust
tool
for
diagnosing
diseases.
Herein,
we
rationally
developed
novel
donor-acceptor
lipophilic
probe
ANI
photostability
wash-free
visualization
characteristics.
showed
typical
twisted
intramolecular
charge
transfer
effect
very
faint
fluorescence
high-polar
solvents,
but
dramatically
boosted
emissions
low-polar
environments.
solvatochromic
can
selectively
light
up
manner.
Further
use
to
reveal
the
significantly
large
size
tissues
from
model
mice
was
successfully
demonstrated.
remarkable
performances
rendered
an
alternative
accurately
evaluating
intraoperative
diagnosis.
ACS Nano,
Journal Year:
2022,
Volume and Issue:
16(7), P. 10979 - 10993
Published: June 19, 2022
Sonodynamic
therapy
(SDT)
has
garnered
extensive
attention
as
a
noninvasive
treatment
for
deep
tumors.
Furthermore,
imiquimod
(R837),
an
FDA-approved
toll-like
receptor
7
agonist,
is
commonly
used
in
clinical
settings
immune
adjuvant.
We
prepared
activatable
sonodynamic
sensitizer
platform
(MR)
based
on
glutathione-sensitive
disulfide
bonds
linking
Leu-MB,
the
reduced
form
of
methylene
blue
(MB),
and
R837
to
achieve
efficient
combinatory
SDT
immunotherapy
tumors
without
harming
normal
tissues.
also
amphiphilic
polymer
C18PMH-PEG
create
self-assembled
MB-R837-PEG
(MRP)
nanoparticles
immunosonodynamic
(iSDT).
iSDT
cancer
that
combines
immunotherapy.
Our
demonstrated
excellent
effect
only
at
tumor
site,
demonstrating
high
specificity
killing
cells
when
compared
reported
literature.
The
improves
its
tumor-killing
by
inducing
response,
which
accomplished
secreted
adjuvants
site.
MRP
was
selectively
activated
glutathione
microenvironment
release
MB
R837,
exhibiting
antitumor
responses.
In
addition,
combined
with
α-PD-L1
antibody
checkpoint
blockade,
this
effectively
inhibited
metastasis.
mice
treated
did
not
develop
even
after
reinoculation,
indicating
long-term
memory
achieved.
concept
preparation
next-generation
synergistic
therapeutic
modality
applicable
near
future
presented
study.