Nanoscale Horizons,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
Immune
profiling
provides
insights
into
functioning
of
the
immune
system:
distribution,
abundance
and
activity
cells.
Nanoparticles
can
offer
a
versatile
approach
to
profile
system
with
improved
efficiency
multiplexed
imaging
power.
Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
97(1), P. 936 - 944
Published: Dec. 20, 2024
A
dual-SERS
encoding
strategy
was
designed
for
in
situ
and
vivo
evaluation
of
multiplex
protein-specific
glycosylation
tumors.
The
consisted
two
pairs
dual
gold
nanoprobes
with
different
diameters
10
30
nm,
which
were
encoded
four
distinguishable
Raman
signal
molecules.
nm
(Au10
Au30
probes,
respectively)
further
modified
lectins
aptamers
to
recognize
the
target
glycans
proteins,
respectively.
After
sequential
binding
adjacent
Au10
probes
could
emit
strong
surface-enhanced
scattering
(SERS)
signals
indicate
information
on
cells
vivo,
can
reveal
distribution
differences
tumor
markers
central
marginal
regions
This
has
been
successfully
applied
imaging
MUC1
EpCAM-specific
Sia
Gal/GalNAc
cell
surfaces
xenografted
mice,
providing
a
convenient
powerful
tool
study
glycosylation-related
physiological
pathological
mechanisms.
Nanoscale Advances,
Journal Year:
2023,
Volume and Issue:
5(6), P. 1776 - 1783
Published: Jan. 1, 2023
We
develop
a
tunable,
ultra-fast
(5
seconds)
synthetic
method
to
fabricate
branched
Au
superparticles
by
wet
chemical
route,
the
special
growth
mechanism
of
toggling
mode
is
revealed
and
confirmed.
Advanced Materials Interfaces,
Journal Year:
2024,
Volume and Issue:
11(24)
Published: June 24, 2024
Abstract
Signal
transducers
are
crucial
in
bioassay
platforms
for
converting
target
detection
into
recordable
signals.
Commonly
used
color
development
immunoassays
involves
enzymes
and
colorimetric
substrates.
However,
due
to
cost
environmental
issues,
practical
point‐of‐care
testing
requires
alternative
signal
transducers.
Growth‐induced
extinction
(absorption
scattering)
of
gold
nanoclusters
(AuNCs)
is
proposed
as
a
novel
approach
quantitative
immunoassays.
AuNCs
devoid
localized
surface
plasmon
resonance
(LSPR)
seeds
growth
reactions.
Through
reactions
with
solution
comprised
precursor
mild
reductant,
varying
concentrations
underwent
controlled
growth,
resulting
nanoparticles
different
sizes
exhibiting
distinct
LSPR‐mediated
bands.
Notably,
the
seed
concentration
exhibited
robust
correlation
grown
particles
on
small
scale
110
µL
96‐well
microplate
platform.
To
demonstrate
this
transduction
mechanism,
immunosorbent
assays
performed
using
conjugates
AuNC
antibody.
The
sandwich‐type
assay
successfully
quantified
model
antigen,
human
immunoglobulin
G
(hIgG),
by
monitoring
LSPR
wavelength
absorbance.
This
demonstrated
working
range
0.001–1
µg
mL
−1
limit
1.19
ng
.
offer
new
candidates
immunoassay
platforms.
Nanoscale Horizons,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
Immune
profiling
provides
insights
into
functioning
of
the
immune
system:
distribution,
abundance
and
activity
cells.
Nanoparticles
can
offer
a
versatile
approach
to
profile
system
with
improved
efficiency
multiplexed
imaging
power.