Marine Drugs,
Journal Year:
2024,
Volume and Issue:
22(11), P. 503 - 503
Published: Nov. 6, 2024
,
an
abalone,
is
a
marine
gastropod
mollusk
that
has
been
cultivated
globally
owing
to
its
nutritional
value
and
high
market
demand.
However,
the
visceral
parts
of
Smart Medicine,
Journal Year:
2024,
Volume and Issue:
3(1)
Published: Feb. 1, 2024
In
recent
years,
an
encouraging
breakthrough
in
the
synthesis
of
immobilized
enzymes
flower-shaped
called
"organic-inorganic
hybrid
nanoflowers
(hNFs)"
with
greatly
enhanced
catalytic
activity
and
stability
were
reported.
Although,
these
hNFs
discovered
by
accident,
exhibited
highly
activities
stabilities
compared
free
conventionally
enzymes.
Herein,
we
rationally
utilized
for
analytical
applications.
this
comprehensive
review,
covered
design
use
as
novel
versatile
sensors
electrochemical,
colorimetric/optical
immunosensors-based
detection
strategies
perspective.
Molecules,
Journal Year:
2025,
Volume and Issue:
30(5), P. 1173 - 1173
Published: March 6, 2025
(1)
Background:
To
explore
the
anti-obesity
effects
and
mechanisms
of
sika
deer
velvet
antler
peptides
(sVAP)
on
3T3-L1
preadipocytes
in
high-fat
diet
(HFD)-induced
obese
mice.
(2)
Methods:
sVAP
fractions
different
molecular
weights
were
obtained
via
enzymatic
hydrolysis
ultrafiltration.
Their
anti-lipid
cells
assessed
with
Oil
Red
O
staining.
The
optimal
fraction
was
tested
HFD-induced
C57BL/6
mice
to
mechanisms.
Peptide
purification
used
LC-MS/MS,
followed
by
sequence
analysis
docking
for
activity
prediction.
(3)
Results:
peptide
best
identified
as
sVAP-3K
(≤3
kDa).
reduced
lipid
content
proliferation
cells,
improved
profiles
ameliorated
adipocyte
degeneration
HFD
mice,
promoted
growth
beneficial
gut
microbiota,
maintained
metabolism.
Additionally,
activated
AMP-activated
protein
kinase
(AMPK)
signaling
pathway,
regulating
adipogenic
transcription
factors.
exhibited
ten
major
components
(peak
area
≥
1.03
×
108),
four
most
active
being
newly
discovered
natural
oligopeptides:
RVDPVNFKL
(m/z
363.21371),
GGEFTPVLQ
474.24643),
VDPENFRL
495.25735),
VDPVNFK
818.44043).
(4)
Conclusion:
This
study
identifies
novel
oligopeptides
key
effects,
offering
new
evidence
developing
weight-loss
drugs
from
velvet.
ACS Omega,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 13, 2025
The
broad
application
of
laccase
mimics
is
notably
constrained
by
their
costly
and
intricate
synthesis
routes.
For
example,
researchers
often
use
peptides
to
coordinate
with
copper
ions
mimic
the
active
sites
laccases,
thereby
constructing
mimics.
However,
these
synthetic
methods
are
quite
complex,
such
as
requiring
high
temperatures,
organic
solvents,
long
durations,
cumbersome
procedures.
In
this
study,
we
introduce
a
straightforward
yet
highly
active,
robust,
versatile
known
HH-Cu,
which
was
synthesized
through
simple
precipitation
reaction
combining
dipeptide
HH
Cu2+
in
phosphate-buffered
saline
(PBS).
By
adjusting
ratio
ions,
were
able
produce
most
effective
organic-inorganic
hybrid
nanoparticles,
namely,
outperforms
HH-Cu
nanoflowers.
demonstrates
extraordinary
catalytic
efficiency,
4.7-fold
higher
maximum
velocity
(v
max)
lower
Michaelis
constant
(K
m)
compared
natural
laccase.
This
nanozyme
also
remarkably
resilient
under
harsh
conditions
extreme
pH
levels,
salinity,
it
shows
excellent
storage
stability
reusability.
We
successfully
applied
for
degradation
quantitative
detection
various
phenolic
pollutants
epinephrine.
markedly
superior
sensitivity
detecting
epinephrine
than
offers
comparable
limit
broader
linear
range
other
research
should
lay
groundwork
ongoing
efforts
development
nanozymes
provide
an
method
efficient
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(35), P. 46495 - 46505
Published: Aug. 21, 2024
Investigating
organic
carriers'
utilization
efficiency
and
bioactivity
within
organic–inorganic
hybrid
nanoflowers
is
critical
to
constructing
sensitive
immunosensors.
Nevertheless,
the
sensitivity
of
immunosensors
interactively
regulated
by
different
classes
biomolecules
such
as
antibodies
enzymes.
In
this
work,
we
introduced
a
new
alkaline
phosphatase–antibody–CaHPO4
(AAHNFs)
microreactor
based
colorimetric
immunoprobe.
This
system
integrates
biometric
unit
(antibody)
with
signal
amplification
element
(enzyme)
through
biomineralization
process.
Specifically,
factors
affecting
antibody
recognition
activity
in
formation
mechanism
AAHNFs
are
investigated.
The
designed
retain
ability
enhanced
protection
for
encapsulated
proteins
against
high
temperature,
solvents,
long-term
storage,
facilitating
selective
construction
lock
structures
antigens.
Additionally,
immunosensor
on
was
developed.
After
ascorbic
acid
2-phosphate
hydrolysis
phosphatase
(ALP),
generated
decomposes
I2
I–,
inducing
localized
surface
plasmon
resonance
silver
nanoplate,
which
effectively
tuned
shape
conversion
develop
sensor.
Further,
3D-printed
portable
device
fabricated,
integrated
smartphone
sensing
platform,
applied
data
collection
analysis.
Notably,
exhibits
improved
analytical
performance
0.1–6.25
ng·mL–1
detection
range
0.06
limit
quantitative
saxitoxin
(STX)
average
recoveries
STX
real
samples
ranged
from
85.9%
105.9%.
study
presents
more
in-depth
investigation
performance,
providing
insights
practical
applications.