Journal of Applied Polymer Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 20, 2024
ABSTRACT
Protein
purification
is
essential
for
biomedical
and
industrial
applications,
but
current
methods
often
face
challenges
like
low
efficiency,
high
cost,
limited
selectivity.
To
overcome
these
drawbacks,
we
developed
electrospun
polyacrylonitrile
(PAN)
membranes
with
chitosan
(Cs)
evaluated
their
ability
to
capture
bovine
serum
albumin
(BSA)
immunoglobulin
G
(IgG)
from
aqueous
solutions.
Comparing
PAN/Cs
pristine
PAN
membranes,
showed
Cs
significantly
enhances
BSA
adsorption.
The
were
characterized
using
scanning
electron
microscopy,
Fourier
Transform
Infrared
Spectroscopy,
tensile
testing,
surface
area
analysis,
energy‐dispersive
X‐ray
spectroscopy,
contact
angle
measurements.
exhibited
smooth,
uniform
fibers
averaging
0.454
μm
in
diameter.
maximum
adsorption
capacity
()
was
75.61
mg
g
−1
21.17
PAN,
while
IgG,
28.83
19.77
PAN.
SDS‐PAGE
electrophoresis
confirmed
that
the
eluted
proteins
maintained
quality
integrity.
Elution
efficiency
of
reached
89.13%
62.16%
IgG.
Additionally,
selectively
captured
IgG
when
co‐dissolved
These
results
position
as
promising
materials
efficient,
cost‐effective,
selective
protein
purification,
potential
applications
both
fields.
Efficient
delivery
of
nanoparticles
(NPs)
as
carriers
for
biochemical
substances
is
crucial
in
various
biomedical
applications.
In
this
study,
we
systematically
investigate
the
interactions
between
glycosylated
and
nonglycosylated
forms
Apolipoprotein
D
(ApoD)
with
gold
(AuNPs)
functionalized
different
polymer
coatings,
including
polyethylene
glycol
(PEG)
zwitterionic
polymers.
Using
all-atom
molecular
dynamics
simulations,
demonstrate
that
glycosylation
significantly
enhances
adsorption
behavior
ApoD
on
AuNP
surfaces,
extent
enhancement
being
dependent
type
(especially
charge
property)
coatings.
Notably,
while
polymers
exhibit
strong
resistance
to
protein
their
form,
antifouling
capability
diminished
when
present.
Further,
our
findings
reveal
not
only
strengthens
binding
energy
proteins
but
also
alters
hydration
at
NP–protein
interface.
Overall,
study
provides
a
deeper
understanding
role
modulating
protein–nanoparticle
interactions,
which
essential
design
more
effective
nanomaterials
precision
medicine.
Langmuir,
Journal Year:
2024,
Volume and Issue:
40(29), P. 15205 - 15213
Published: July 11, 2024
The
size
or
the
curvature
of
nanoparticles
(NPs)
plays
an
important
role
in
regulating
composition
protein
corona.
However,
molecular
mechanisms
how
affects
interaction
NPs
with
serum
proteins
still
remain
elusive.
In
this
study,
we
employ
all-atom
dynamics
simulations
to
investigate
interactions
between
two
typical
and
PEGylated
Au
three
different
surface
curvatures
(0,
0.1,
0.5
nm
Analytical Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 4, 2025
The
formation
of
a
protein
corona
(PC)
can
significantly
impact
the
detection
ability
gold
nanoparticles
(AuNPs)-small
molecule
adsorbent
probes
based
on
competitive
adsorption.
To
alleviate
this
problem,
in
study,
double-stranded
DNA
(dsDNA)
was
introduced
to
modify
AuNP
mitigate
negative
effect
PCs
small
molecules
by
taking
AuNPs-dichlorofluorescein
(DCF)
probe-based
ambroxol
hydrochloride
(AMB)
as
study
model.
It
found
that
dsDNA-modified
AuNPs-DCF
probe
(dsDNA@AuNPs-DCF),
accuracy
for
AMB
improved,
which
might
be
attributed
isolation
proteins
from
surface
AuNPs
while
still
allowing
access
due
introduction
rigid
dsDNA.
Further,
strand
length
and
number
dsDNA
modified
antifouling
performance
then
investigated,
it
LOD
value
artificial
milk
samples
dsDNA10bp90@AuNPs-DCF
(with
10
base
90:1
ratio
AuNPs)
is
decreased
more
than
2-fold
compared
with
probe.
Moreover,
probes,
recovery
rates
analyzed
commercial
greatly
improved
probe,
particularly
when
contained
much
lower
concentrations.
This
demonstrates
dsDNA-based
antiprotein
corona-fouling
strategy
AuNPs-small
provides
beneficial
ideas
dealing
interference
resulting
studying
biological
samples.
Exploration,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 6, 2025
ABSTRACT
Inorganic
protein
hybrid
materials
(IPHMs)
due
to
editable
structure
present
unrivalled
potential
at
the
intersection
of
synthetic
biology
and
science.
The
synthesis
IPHMs
with
a
high
degree
biosafety
from
bioactive
units
represents
shift
in
material
design
synthesis.
This
paper
focuses
on
review
structural
basis
principles
proteins
for
specific
physical
chemical
functions.
It
also
provides
valuable
reference
emerging
through
conformational
relationship
IPHMs,
which
extends
applications
IPHMs.
In
addition,
construction
strategy
reaction
system
is
analyzed
perspective
biology.
possibility
engineering
batch
discussed.
Based
physicochemical
properties
different
applied‐oriented
research
biomedical
optical
imaging
multimodal
therapy,
idea
situ
proposed.
Ultimately,
trends
challenges
are
speculated
detail.
Deleted Journal,
Journal Year:
2025,
Volume and Issue:
24(1)
Published: April 14, 2025
Background:
Liver
cancer
is
increasing
in
different
parts
of
the
world
and
fourth
leading
cause
death
globally.
Objectives:
The
present
study
aims
to
synthesize
analyze
characterization
gold
nanoparticles
(AuNPs)
synthesized
by
Cichorium
intybus
extract
evaluate
their
antioxidant
cellular
toxicity
activity
against
liver
cells
(HepG2).
Methods:
AuNPs
were
characterized
using
X-ray
diffraction
(XRD),
field
emission
scanning
electron
microscopy
(FESEM),
fourier-transform
infrared
spectroscopy
(FTIR).
was
assessed
DPPH
test,
cytotoxicity
analyzed
MTT
method.
Results:
results
indicate
that
are
crystalline
materials
with
a
particle
size
less
than
100
nm,
mean
23.94
nm.
FTIR
reveals
presence
biochemical
groups
act
as
reducing
factors.
demonstrate
increases
concentration,
87%
inhibition
free
radical
scavenging
observed
at
250
µg/mL.
Cell
cell
lines
(HepG2)
demonstrated
significant
time-
dose-dependent
manner.
percentage
viability
concentration
1000
µg/ml
after
24,
48,
72
hours
determined
be
45%,
51%,
22%,
respectively.
Conclusions:
revealed
simple
cost-effective
environmentally
friendly
method
could
employed
from
food
pharmaceutical
industries.
Nanomedicine,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 12
Published: April 30, 2025
While
gold
nanoparticles
(AuNPs)
should
allow
the
delivery
of
surface
immobilized
drugs
to
intended
target
tissues
via
bloodstream,
their
interactions
with
plasma
proteins
may
induce
aggregation
and
thus
impede
an
effective
chemotherapeutic
agents
tissues.
The
deliberate
treatment
AuNPs
has
potential
overcome
this
inherent
limitation.
To
probe
between
treated
in
blood
plasma,
we
employed
a
size-exclusion
chromatography
(SEC)-based
metallomics
tool
together
transmission
electron
microscopy
(TEM).
After
addition
citrate
capped
its
analysis
revealed
>670
kDa
Au
species,
which
TEM
identified
as
AuNP-plasma
protein
aggregates.
ameliorate
formation
latter,
was
modified
dithiothreitol
(DTT),
meso
2,3-dimercaptosuccinic
acid
(DMSA),
or
2,3
dimercapto-1-propionesulfonic
(DMPS)
effect
probed
after
these
rabbit
plasma.
results
for
DMSA/DMPS-treated
that
tight
binding
dithiols
more
significantly
reduced
corona
compared
DTT-AuNPs
implying
DMSA
DMPS
is
feasible
strategy
control
AuNP-based
using
targeting
sequences
cancer
can
be
enhanced
by
DMPS.
Since
left
over
AuNP
mobilized
iron
from
metalloproteins,
excess
must
removed
before
injecting
patients.