Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 28, 2024
The
investigation
of
bonding
interactions
between
superatoms
continues
to
be
a
largely
unexplored
area
study.
In
this
study,
we
present
the
synthesis
and
characterization
two
F2-type
superatomic
molecules
[Au2Ag25(C7H4NOS)13(DPPB)3]
[Au9Ag18(C5H4NS)11(DPPM)5]2+
(Au2Ag25
Au9Ag18
for
short,
respectively).
overall
structures
were
confirmed
via
X-ray
crystallography,
revealing
horizontal
expansion
biicosahedral
Au2Ag21
yielding
vertical
Au8Ag15
[Au9Ag18(C5H4NS)11(DPPM)5]2+.
Furthermore,
their
electronic
elucidated
through
density
functional
theory
(DFT)
calculations.
Spectroscopic
analysis
absorption
characteristics,
in
conjunction
with
Tamm–Dancoff
approximation
DFT
(TDA-DFT)
calculations,
revealed
that
Au2Ag21(+9)
Au8Ag15(+9)
cores
analogues
F2
molecule
configuration.
Materials Horizons,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Atrazine
is
a
widely
used
and
heavily
contaminating
pesticide.
In
this
work,
we
designed
synthesized
versatile
catalyst
for
the
degradation
fluorescent
detection
of
atrazine.
This
consists
Cu
clusters
modified
by
Schiff
base.
The
combination
base
enables
it
to
act
as
with
dual
roles
oxidation
reduction.
inclusion
also
narrows
band
gap
accelerates
redox
electron
transfer,
leading
atrazine
up
98%.
Furthermore,
red
fluorescence
green
allow
sense
like
sensor
change
in
color.
limit
low
0.1
nM
visual
10
nM.
mechanisms
catalysis
sensing
are
verified
mass
spectrometry
density
functional
theory.
multi-functional
has
great
application
potential
environmental
protection,
health
safety
other
fields.
Analytical Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 17, 2025
In
the
traditional
multiplexed
lateral
flow
immunoassay
(LFIA),
different
detection
probes
against
targets
are
necessary.
However,
relative
complexity
and
high
cost
of
probe
preparation,
as
well
insufficient
user-friendliness,
limit
application
LFIA
in
disease
diagnosis.
Here,
we
reported
a
bidirectionally
favorable
(BDF-LFIA)
platform
to
maximize
convenience
for
both
manufacturers
users.
Red-emitting
time-resolved
fluorescent
nanoparticles
were
coated
with
antibodies
recognize
multiple
simultaneously,
which
greatly
simplified
preparation
by
manufacturers.
Ultrabright
green-emitting
gold
nanoclusters
pre-embedded
on
test
line
reference
signal
achieve
target
concentration-dependent
maple
leaf-type
hue
readout
from
green
yellow
red,
was
quite
user-friendly.
Taking
cancer
biomarkers
alpha-fetoprotein
carcinoembryonic
antigen
examples,
this
assay
achieved
visual
2
ng/mL.
Compared
conventional
LFIA,
BDF-LFIA
could
generate
more
discernible
around
threshold
concentration
targets.
Moreover,
successfully
diagnosed
54
clinical
samples.
Overall,
showed
bidirectional
benefits
users
provided
new
concept
detection.
Journal of Polymer Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 7, 2025
ABSTRACT
Electrodeposition
of
polysaccharides
offers
an
attractive
strategy
for
fabricating
nanoparticles
and
their
nanocomposite
films
on
electrodes
to
develop
bioelectronic
devices
functional
materials.
Herein,
a
controllable
approach
the
green
preparation
nanosilver
(nAg)
with
variable
sizes
is
developed
based
coordinated
electrodeposition
carboxymethyl
cellulose
(CMC).
In
addition
serving
as
electrodeposited
polysaccharide,
CMC
can
function
reducing
agent
stabilizer
preparing
nAg.
After
electrodeposition,
uniform
smooth
(nAg/CMC
films)
have
been
deposited
anodic
electrode.
Spectral
analysis
transmission
electron
microscopy
confirm
presence
nAg
in
films.
Especially,
adjustable
particle
(ranging
from
2.03
13.62
nm)
be
achieved
through
straightforward
convenient
control
conditions
(voltage,
temperature).
Moreover,
endowed
unique
fluorescent
properties
since
silver
nanoclusters
(Ag
NCs)
relatively
small
size
controllably
prepared.
The
nAg/CMC
film‐modified
show
potential
electrochemical
detection
that
film
containing
small‐sized
Ag
NCs
exhibits
good
sensitivity.
Thus,
this
study
provides
novel,
facile,
controllable,
eco‐friendly
promisingly
applied
prepare
nanocomposites
specific
special
properties.
