Nanomaterials,
Journal Year:
2023,
Volume and Issue:
14(1), P. 69 - 69
Published: Dec. 26, 2023
The
exponential
growth
of
electronic
waste
(e-waste)
has
raised
significant
environmental
concerns,
with
projections
indicating
a
surge
to
74.7
million
metric
tons
e-waste
generated
by
2030.
Waste
printed
circuit
boards
(WPCBs),
constituting
approximately
10%
all
e-waste,
are
particularly
intriguing
due
their
high
content
valuable
metals
and
rare
earth
elements.
However,
the
presence
hazardous
elements
necessitates
sustainable
recycling
strategies.
This
review
explores
innovative
approaches
metal
nanoparticle
synthesis
from
WPCBs.
Efficient
recovery
WPCBs
begins
disassembly
utilization
advanced
equipment
for
optimal
separation.
Various
pretreatment
techniques,
including
selective
leaching
magnetic
separation,
enhance
efficiency.
Green
systems
such
as
biohydrometallurgy
offer
eco-friendly
alternatives,
selectivity.
Converting
ions
into
nanoparticles
involves
concentration
transformation
methods
like
chemical
precipitation,
electrowinning,
dialysis.
These
vital
transforming
recovered
nanoparticles,
promoting
resource
recycling.
Sustainable
green
utilizing
natural
sources,
microorganisms
plants,
discussed,
focus
on
applications
in
producing
well-defined
nanoparticles.
Nanoparticles
derived
find
drug
delivery,
microelectronics,
antimicrobial
materials,
remediation,
diagnostics,
catalysis,
agriculture,
etc.
They
contribute
wastewater
treatment,
photocatalysis,
protective
coatings,
biomedicine.
important
implications
this
lie
its
identification
pivotal
solution
paving
way
practices
supply
materials
diverse
industrial
applications.
Polymers,
Journal Year:
2025,
Volume and Issue:
17(3), P. 423 - 423
Published: Feb. 6, 2025
Transition-metal
ion
copper(II)
(Cu(II))
has
drawn
increasing
attention
as
a
small-molecular
cancer
theranostic
agent.
However,
delivering
sufficient
dosage
of
Cu(II)
to
the
tumor
site
and
integrating
multiple
imaging
modalities
achieve
precise
effective
theranostics
remains
critical
challenge.
Herein,
an
emerging
Cu(II)-based
nanocomposite
been
synthesized
for
targeted
computed
tomography
(CT)/magnetic
resonance
(MR)
dual-mode
chemodynamic
therapy
(CDT).
Briefly,
2-picolinic
acid
(PA-COOH),
polyethylene
glycol
(PEG)-linked
folic
(FA),
fluorescein
isothiocyanate
(FI)
were
sequentially
conjugated
with
polyethylenimine
(PEI.NH2)
then
in
situ
fabrication
gold
nanoparticles
(Au
NPs)
occurred
within
PEI.NH2
internal
cavity.
After
acetylation
terminal
amines
complexation,
nanocomposites
FA-Au/Cu(II)
PENPs
mean
diameter
2.87
nm
generated.
The
showed
favorable
stability
colloidal
dispersion,
sustainable
release
properties
pH-dependent
manner,
Fenton-like
catalytic
activity
specifically.
With
FA-mediated
targeting
pathway,
can
specifically
accumulate
cells
high
expression
FA
receptors.
Meanwhile,
complementary
CT/MR
vitro
vivo
be
afforded
by
based
on
excellent
X-ray
attenuation
Au
NPs
applicable
r1
relaxivity
(0.7378
mM−1s−1)
Cu(II).
Notably,
Cu(II)-mediated
CDT
mechanism
enables
elicit
generation
toxic
hydroxyl
radicals
(·OH),
depletion
glutathione
(GSH),
promotion
lipid
peroxidation
(LPO),
induction
cell
apoptosis
vitro,
further
demonstrates
remarkable
anti-tumor
efficacy
xenograft
model.
illustrated
capacity
towards
tumors,
this
paradigm
inspires
construction
advanced
nanoplatforms
incorporating
alternative
transition
metal
ions.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 7, 2025
Non-alcoholic
fatty
liver
disease
(NAFLD)-induced
early-stage
fibrosis
is
increasingly
common.
Non-invasive
MRI
detection
offers
an
important
diagnostic
method
to
prevent
from
progressing
cirrhosis
or
hepatocellular
carcinoma.
However,
because
confined
the
periportal
areas,
and
changes
in
tissue
structure
stiffness
are
minimal,
standard
T1-
T2-weighted
imaging
struggles
capture
these
lesions.
To
address
this
challenge,
a
highly
sensitive
targeted
T1-T2
dual-mode
magnetic
resonance
(MRI)
nanoprobe
designed
developed,
specifically
targeting
characterized
by
activation
of
hepatic
stellate
cells
(HSCs)
overexpression
platelet-derived
growth
factor
receptor
β
(PDGFRβ).
The
exhibits
excellent
relaxivity
(r2/r1
=
10.7)
precise
due
PDGFRβ-specific
peptides
conjugated
its
protein
nanocage.
In
vivo,
animal
models
demonstrate
effective
accumulation
probe
fibrotic
regions
as
NAFLD
progressed,
with
fluorescence
signal
intensity
accurately
reflecting
severity
fibrosis.
Using
7T
system,
T1
T2
images
overlaid
within
1
h,
locating
areas
improving
speed
precision.
shows
biocompatibility
enhances
early
NAFLD,
offering
significant
clinical
potential
for
diagnosis,
prognosis,
recurrence
monitoring.
Journal of Controlled Release,
Journal Year:
2024,
Volume and Issue:
369, P. 363 - 375
Published: April 3, 2024
The
lymphatic
system
is
active
in
several
processes
that
regulate
human
diseases,
among
which
cancer
progression
stands
out.
Thus,
various
drug
delivery
systems
have
been
investigated
to
promote
targeting
for
therapy;
mainly,
nanosized
particles
the
10–150
nm
range
quickly
achieve
vessels
after
an
interstitial
administration.
Herein,
a
strategy
boost
lymphotropic
of
Rose
Bengal
(RB),
hydrosoluble
chemotherapeutic,
proposed,
and
it
based
on
loading
into
Transfersomes
(RBTF)
their
intradermal
deposition
vivo
by
microneedles.
RBTF
96.27
±
13.96
(PDI
=
0.29
0.02)
were
prepared
green
reverse-phase
evaporation
technique,
they
showed
RB
encapsulation
efficiency
98.54
0.09%.
In
vitro,
remained
physically
stable
under
physiological
conditions
avoided
release
RB.
vivo,
intravenous
injection
prolonged
half-life
50
min
healthy
rats
compared
injection;
rat
body
was
further
increased
reaching
24
h,
regardless
formulation
used.
Regarding
targeting,
administered
intravenously
provided
accumulation
lymph
nodes
12.3
0.14
ng/mL
2
whereas
no
observed
injection.
Intradermally
resulted
highest
amount
detected
h
from
(84.2
25.10
ng/mL),
even
visible
naked
eye
pink
colouration
drug.
case
intradermally
RB,
node
only
at
(13.3
1.41
ng/mL).
conclusion,
proved
efficient
carrier
delivery,
enhancing
its
pharmacokinetics
promoting
lymph-targeted
delivery.
represents
promising
nanomedicine
product
potentially
facing
medical
need
novel
strategies
therapy.
Journal of Nanobiotechnology,
Journal Year:
2023,
Volume and Issue:
21(1)
Published: Aug. 1, 2023
Sentinel
lymph
node
(SLN)
metastasis
is
an
important
promoter
of
distant
in
breast
cancer.
Therefore,
the
timely
diagnosis
and
precise
treatment
are
crucial
for
patient
staging
prognosis.
However,
simultaneous
implementation
imaging-guided
SLN
therapy
challenging.
Here,
we
report
a
melittin-loaded
hyaluronic
acid
(HA)-conjugated
high-density
lipoprotein
(HDL)
mimic
phospholipid
scaffold
nanoparticle
(MLT-HA-HPPS),
which
dually-target
to
both
cancer
its
efficiently
inhibit
LN
model.
The
melittin
peptide
was
successfully
loaded
onto
HA-HPPS
via
electrostatic
interactions,
MLT-HA-HPPS
possesses
effective
cytotoxicity
4T1
cells.
Moreover,
delivery
from
primary
tumor
into
monitored
by
NIR
fluorescence
imaging,
greatly
benefits
prognosis
metastatic
SLNs.
After
paracancerous
administration,
can
growth
with
inhibition
rate
81.3%
76.5%
relative
PBS-treated
control
group
group,
respectively.
More
importantly,
effectively
SLNs
approximately
78.0%,
79.1%,
64.2%
decrease
weight
than
those
PBS,
HA-HPPS,
melittin-treated
mice,
Taken
together,
may
provide
encouraging
theranostic
drug
strategy
progression
prevent
Phytotherapy Research,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Feb. 14, 2024
Abstract
Chemoresistance
is
the
adaptation
of
cancer
cells
against
therapeutic
agents.
When
exhibited
by
cells,
chemoresistance
helps
them
to
avoid
apoptosis,
cause
relapse,
and
metastasize,
making
it
challenging
for
chemotherapeutic
agents
treat
cancer.
Various
strategies
like
dosage
modification
drugs,
nanoparticle‐based
delivery
chemotherapeutics,
antibody‐drug
conjugates,
so
on
are
being
used
target
reverse
chemoresistance,
one
among
such
combination
therapy.
It
uses
two
or
more
multidrug
resistance
improve
effects
chemotherapy.
Phytochemicals
known
exhibit
chemosensitizing
properties
found
be
effective
various
cancers.
Tocotrienols
(T3)
tocopherols
(T)
natural
bioactive
analogs
vitamin
E,
which
important
medicinal
value
potential
curative
apart
from
serving
as
an
antioxidant
nutrient
supplement.
Notably,
T3
exhibits
a
variety
pharmacological
activities
anticancer,
anti‐inflammatory,
antiproliferative,
on.
The
property
tocotrienol
modulating
several
signaling
pathways
molecular
targets
involved
in
cell
survival,
proliferation,
invasion,
migration,
metastasis
NF‐κB,
STATs,
Akt/mTOR,
Bax/Bcl‐2,
Wnt/β‐catenin,
many
more.
sensitizes
drugs
including
cisplatin,
doxorubicin,
paclitaxel
increasing
drug
concentration
cytotoxicity.
Discussed
herewith
tocotrienols
types
when
combined
with
biological
molecules.