Abstract
Manganese
sensing
using
ligands
remains
challenging
due
to
the
stability
of
manganese
complexes
and
disproportionation
reactions
in
solvents.
Herein,
we
report
colourimetry‐based
fast
reliable
differential
Mn(II),
Mn(III),
squaramide‐ligands
with
pyridine
functionality
colourimetrically.
The
efficiency
these
is
contingent
on
disposition
nitrogen
relative
squaramide
ring
sustained
by
presence
acetate
ions.
electronic
1
H‐NMR
measurements
depict
complexation
metal
ion
ligand
molecules.
In
contrast,
electron
paramagnetic
resonance
(EPR)
suggest
that
extent
ligand‐to‐metal
charge
transfer
(LMCT)
primarily
responsible
for
Mn(II)
Mn(III)
different
colours.
also
produces
selective
chromogenic
responses
Pb(II)
limit
detection
(LOD)
ions
≈52
n
84
nM,
respectively,
where
LOD
17.9
n.
Visually,
response
below
10
µ
concentration
filter
paper
as
low
<
can
be
easily
sensed,
which
used
portable
strips
real‐life
samples.
Nano-Micro Letters,
Год журнала:
2024,
Номер
17(1)
Опубликована: Ноя. 4, 2024
Abstract
Gas
sensor
is
an
indispensable
part
of
modern
society
with
wide
applications
in
environmental
monitoring,
healthcare,
food
industry,
public
safety,
etc.
With
the
development
technology,
wireless
communication,
smart
monitoring
terminal,
cloud
storage/computing
and
artificial
intelligence,
gas
sensors
represent
future
sensing
due
to
their
merits
real-time
multifunctional
early
warning
function,
intelligent
automated
feature.
Various
electronic
optoelectronic
have
been
developed
for
high-performance
analysis.
terminals
maturity
integrated
flexible
wearable
play
increasing
role
This
review
highlights
recent
advances
diverse
applications.
The
structural
components
fundamental
principles
are
described,
devices
highlighted.
Moreover,
array
intelligence
algorithms
“Internet
Things”
paradigm
introduced.
Finally,
challenges
perspectives
discussed
regarding
need
city
healthy
living.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 17, 2024
Poly(lactic
acid)
(PLA)
is
a
representative
biobased
and
biodegradable
aliphatic
polyester
front-runner
among
sustainable
materials.
As
semicrystalline
thermoplastic,
PLA
exhibits
excellent
mechanical
physical
properties,
attracting
considerable
attention
in
commodity
medical
fields.
Stereochemistry
key
factor
affecting
PLA's
to
this
end,
the
engineering
of
microstructure
for
tailored
material
properties
has
been
an
active
area
research
over
decade.
This
Review
first
covers
basic
structural
variety
PLA.
A
perspective
on
current
states
stereocontrolled
synthesis
as
well
relationships
between
structures
stereosequences
are
included,
with
emphasis
record
regularity
properties.
At
last,
state-of-the-art
examples
high-performance
PLA-based
materials
within
array
applications
given,
including
packaging,
fibers,
textiles,
healthcare
electronic
devices.
Among
various
stereo-regular
sequences
PLA,
poly(L-lactic
(PLLA)
most
prominent
category
myriad
unique
applications.
In
regard,
cutting-edge
PLLA
mainly
overviewed
review.
same
time,
new
developed
based
other
highlighted,
which
holds
potential
wide
International Journal of Food Science & Technology,
Год журнала:
2025,
Номер
60(1)
Опубликована: Янв. 1, 2025
Abstract
Food
waste
is
a
significant
global
issue,
and
large
proportion
of
discarded
food
originates
from
domestic
households.
This
underscores
the
need
for
effective
methods
to
determine
when
no
longer
safe
consume,
which
could
significantly
reduce
waste.
Current
disposal
practices
largely
rely
on
expiration
or
use-by
dates,
often
do
not
accurately
reflect
spoilage
due
varying
storage
conditions.
Moreover,
foodborne
illnesses,
pose
serious
public
health
risks,
highlight
more
accurate
detection
methods.
Recent
advancements
in
sensors,
particularly
those
using
colorimetric
gas
detection,
offer
promising
solutions.
These
detect
gases
without
direct
contact,
are
enhanced
by
new
materials
improved
data
analysis
techniques.
review
focuses
exploring
their
principles
methods,
including
use
user-friendly
devices
image
processing
technologies.
It
also
addresses
challenges
future
directions
developing
sensors.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 9, 2025
Abstract
Immobilization
of
fragile
enzymes
in
a
suitable
support
material
provides
new
opportunities
to
improve
the
performance
immunosensor,
but
construction
remains
challenging
due
dimensional
limitation
or
denaturation
during
process.
Herein,
an
enzyme‐engineered
assembly
strategy
that
enables
situ
fusion
into
framework
structure
crystal
formation
process
via
covalent‐polymerization‐permeation
mechanism
is
demonstrated,
utilizing
dynamic
covalent
chemistry
property
organic
frameworks
(COFs‐PB).
By
finely
regulating
assembling
order
building
blocks,
enzyme‐COFs
composite
with
spatial
distribution
enzyme
(such
as
uniform,
sub‐surfaces,
interface)
can
be
evolved,
featuring
controllable
activity
and
structural
stability.
Impressively,
apparent
enzymatic
kinetics
well
maintained
after
encapsulation
COFs‐PB,
enzyme@COFs‐PB
has
shown
outstanding
stability
strongly
acidic
environments.
Benefiting
from
integration,
robust
enzyme@COFs‐PB‐based
immunosensor
built
for
sensitive
detection
isocarbophos
pesticide,
which
performed
56‐fold
enhancement
sensitivity
compared
standard
immunosensor.
This
study
gives
valuable
insight
comprehensive
understanding
interfacial
interactions
between
COFs
designing
ideal
biocatalytic
nanosystems,
providing
important
guidance
development
advanced
immunosensors
on‐site
application.
Foods,
Год журнала:
2025,
Номер
14(5), С. 744 - 744
Опубликована: Фев. 22, 2025
Biosensors
are
innovative
and
cost-effective
analytical
devices
that
integrate
biological
recognition
elements
(bioreceptors)
with
transducers
to
detect
specific
substances
(biomolecules),
providing
a
high
sensitivity
specificity
for
the
rapid
accurate
point-of-care
(POC)
quantitative
detection
of
selected
biomolecules.
In
meat
production
chain,
their
application
has
gained
attention
due
increasing
demand
enhanced
food
safety,
quality
assurance,
fraud
detection,
regulatory
compliance.
can
foodborne
pathogens
(Salmonella,
Campylobacter,
Shiga-toxin-producing
E.
coli/STEC,
L.
monocytogenes,
etc.),
spoilage
bacteria
indicators,
contaminants
(pesticides,
dioxins,
mycotoxins),
antibiotics,
antimicrobial
resistance
genes,
hormones
(growth
promoters
stress
hormones),
metabolites
(acute-phase
proteins
as
inflammation
markers)
at
different
modules
along
from
livestock
farming
packaging
in
farm-to-fork
(F2F)
continuum.
By
real-time
data
biosensors
enable
early
interventions,
reducing
health
risks
(foodborne
outbreaks)
associated
contaminated
meat/meat
products
or
sub-standard
products.
Recent
advancements
micro-
nanotechnology,
microfluidics,
wireless
communication
have
further
sensitivity,
specificity,
portability,
automation
biosensors,
making
them
suitable
on-site
field
applications.
The
integration
blockchain
Internet
Things
(IoT)
systems
allows
acquired
management,
while
artificial
intelligence
(AI)
machine
learning
(ML)
enables
processing,
analytics,
input
risk
assessment
by
competent
authorities.
This
promotes
transparency
traceability
within
fostering
consumer
trust
industry
accountability.
Despite
biosensors'
promising
potential,
challenges
such
scalability,
reliability
complexity
matrices,
approval
still
main
challenges.
review
provides
broad
overview
most
relevant
aspects
current
state-of-the-art
development,
challenges,
opportunities
prospective
applications
regular
use
safety
monitoring,
clarifying
perspectives.
