Physical review. A/Physical review, A,
Год журнала:
2024,
Номер
110(2)
Опубликована: Авг. 22, 2024
Here
it
is
shown
that
the
exciton
interactions
within
organic
dye
aggregates,
as
modeled
by
Frenkel
Hamiltonian,
enable
construction
of
an
on-off
switchable
gate.
In
this
construction,
a
single
residing
on
controlling
gate
molecule
may
pass
or
inhibit
ballistic
propagation
in
proximal
channel
consisting
array
molecules.
High
ratios
excess
${10}^{2}$
can
be
achieved
through
use
static
difference
dipole-dipole
between
and
which
effectively
creates
Bragg
grating.
The
exhibit
entanglement
with
quantum-mechanical
superposition
presence
absence
occupation
molecule.
The
light-soft
matter
interaction
and
its
applications
form
the
foundation
of
Soft
Matter
Photonics,
here
termed
"Soft
Mattonics",
positioning
it
as
fertile
ground
for
developing
next-generation
photonic
technologies.
Over
past
few
decades,
this
rapidly
evolving
field
has
achieved
significant
advancements,
leading
to
successful
across
a
wide
range
disciplines,
including
optoelectronics,
photonics,
information
technology,
material
science,
robotics,
biomedicine,
astronomy.
In
Perspective,
we
provide
an
overview
Mattonics,
highlighting
recent
developments
in
light-controlled
soft
their
light
manipulating.
Additionally,
offer
insights
into
future
research
directions
with
emphasis
on
both
foundational
practical
that
will
drive
continued
growth
innovation
field.
The Journal of Chemical Physics,
Год журнала:
2025,
Номер
162(17)
Опубликована: Май 1, 2025
Packing
conformations
of
molecular
aggregates
are
known
to
strongly
influence
the
locations
and
intensities
spectral
peaks.
Here,
we
develop
third-order
nonlinear
spectroscopy
signals
for
a
purely
electronic
model
dimer,
which
is
prototype
aggregate
system.
The
model-which
focuses
on
excited-state
absorption
(ESA)
pathways
in
two-dimensional
spectra-reveals
that
orientational
averaging
leads
diagnostic
ESA
peak
H-
J-dimers.
We
constructed
DNA-templated
dimers
cyanine
molecules
as
representative
systems
used
ultrabroadband
measurements
support
predicted
signatures
arising
from
theoretical
model.
Fitting
steady-state
spectra
supports
assigned
packing
conformations.
results
elucidate
how
peaks
can
be
conformation.
This
work
lays
foundation
future
studies
include
complicating
effects
vibronic
states
additional
levels.
The Journal of Physical Chemistry B,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 14, 2025
DNA
self-assembly
of
single
molecules
(i.e.,
dyes)
with
deterministic
orientations
is
a
powerful
approach
for
engineering
molecular
excitons.
However,
current
determination
methods
the
dye
orientation
relative
to
do
not
account
plane,
which
missing
degree
freedom
needed
define
absolute
three-dimensional
orientations.
In
this
work,
we
combine
fluorescence-detected
linear
dichroism,
defocused
dipole
imaging,
and
point
accumulation
imaging
in
nanoscale
topography
(DNA-PAINT)
super-resolution
microscopy
determine
Cy5
dyes
host
duplexes,
includes
plane
orientation.
The
data
revealed
that
absorption
emission
dipoles
are
perpendicular
duplex,
mean
parallel
bases,
supports
notion
intercalate
between
base
pairs.
presented
methodology
will
inspire
investigation
controlling
arrangement
configurations
beyond
spontaneous
π-stacking
as
well
achieving
novel
dye-DNA
arrangements.
ACS Applied Optical Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Апрель 8, 2024
An
attractive
strategy
to
improve
the
energy
transfer
properties
of
synthetic
dye
networks
is
optimize
excitonic
coupling
between
dyes
increase
rates.
To
explore
this
possibility,
we
investigated
use
J-like
cyanine
dimers
(Cy3
and
Cy5
dimers)
on
DNA
duplexes
as
relays
in
molecular
photonic
wires.
This
approach
based
collective
emission
dipole
a
J-dimer
enhance
FRET
rate
dimer
relay
remote
acceptor
dye.
Experimentally,
find
that
room
temperature
aqueous
buffer
conditions,
provided
no
benefit
quantum
yield
relative
simple
monomer
relay.
Further
investigation
led
us
determine
enhanced
nonradiative
relaxation,
non-ideal
orientation
within
dimer,
unfavorable
limit
through
We
hypothesized
relaxation
was
largest
factor
demonstrated
by
placing
sample
viscous
solvent
or
cooling
sample,
which
dramatically
improved
Similar
how
formation
DNA-templated
has
improved,
practical
efficiency
will
require
improvements
ability
control
reach
its
full
potential.
RSC Advances,
Год журнала:
2024,
Номер
14(24), С. 17218 - 17233
Опубликована: Янв. 1, 2024
This
article
demonstrates
the
synthesis
of
mixed
ligand
complexes
cis
-[Co(tn)
2
(Rpy)Br]Br
via
a
mechanochemical
approach.
Their
ferromagnetic
properties
and
efficient
electron
transfer
to
Co(
iii
)
using
TiO
under
UV
light
are
confirmed.
Nanoscale Horizons,
Год журнала:
2024,
Номер
9(12), С. 2334 - 2348
Опубликована: Янв. 1, 2024
We
studied
the
exciton
delocalization
of
indodicarbocyanine
5
dye
derivative
(Cy5-R)
heterodimers
templated
by
a
DNA
Holliday
junction
(HJ),
which
was
quantified
hopping
parameter
J
m
,
n
.
ACS Sensors,
Год журнала:
2023,
Номер
9(1), С. 157 - 170
Опубликована: Дек. 31, 2023
Almost
all
pathogens,
whether
viral
or
bacterial,
utilize
key
proteolytic
steps
in
their
pathogenesis.
The
ability
to
detect
a
pathogen's
genomic
material
along
with
its
activity
represents
one
approach
identifying
the
pathogen
and
providing
initial
evidence
of
viability.
Here,
we
report
on
prototype
biosensor
design
assembled
around
single
semiconductor
quantum
dot
(QD)
scaffold
that
is
capable
detecting
both
nucleic
acid
sequences
by
using
orthogonal
energy
transfer
(ET)
processes.
sensor
consists
central
QD
via
peptidyl-PNA
linkers
multiple
DNA
encode
complements
originating
from
Ebola,
Influenza,
COVID-19
viruses,
which
use
as
surrogate
targets.
These
are
hybridized
complement
strands
labeled
terbium
(Tb)
chelate,
AlexaFluor647
(AF647),
Cy5.5
dyes,
giving
rise
two
potential
FRET
cascades:
first
includes
Tb
→
AF647
(→
=
ET
step),
detected
time-gated
modality,
Cy5.5,
direct
excitation.
DNA-displaying
construct
then
further
RuII-modified
peptide,
quenches
photoluminescence
charge
recognized
protease
yield
full
biosensor.
Each
DNAs
peptides
can
be
ratiometrically
controllable
manner
tune
each
pathways.
Addition
given
target
displaces
QD,
disrupting
channel,
while
addition
disrupts
quenching
boosts
relay
capabilities.
Along
characterizing
pathways
verifying
biosensing
individual
multiplexed
formats,
also
demonstrate
this
function
molecular
logic
perform
Boolean
operations;
highlights
construct's
discriminate
transduce
signals
between
different
inputs
pathogens.
application
space
for
such
device
discussed.
Chemistry - A European Journal,
Год журнала:
2024,
Номер
30(34)
Опубликована: Апрель 15, 2024
Förster
resonance
energy
transfer
(FRET)
has
been
widely
applied
in
fluorescence
imaging,
sensing
and
so
on,
while
developing
useful
strategy
of
boosting
FRET
efficiency
becomes
a
key
issue
that
limits
the
application.
Except
optimizing
spectral
properties,
promoting
orientation
factor
(κ
The Journal of Chemical Physics,
Год журнала:
2024,
Номер
161(7)
Опубликована: Авг. 15, 2024
The
evolution
of
dynamic
DNA
nanostructures
has
propelled
nanotechnology
into
a
robust
and
versatile
field,
offering
groundbreaking
applications
in
nanoscale
communication,
drug
delivery,
molecular
computing.
Yet,
the
full
potential
this
technology
awaits
further
enhancement
through
optimization
kinetic
properties
governing
conformational
changes.
In
work,
we
introduce
mean-field
theory
to
characterize
behavior
origami
hinge
where
each
arm
bears
complementary
single-stranded
overhangs
different
lengths,
which
can
latch
at
closed
conformation.
This
device
is
currently
being
investigated
for
multiple
applications,
particular
interest
development
DNA-based
rapid
diagnostic
tests
coronavirus.
Drawing
from
classical
statistical
mechanics
theories,
derive
analytical
expressions
mean
binding
time
these
within
constant
hinge.
analysis
then
extended
flexible
hinges,
angle
diffuses
predetermined
energy
landscape.
We
validate
our
model
by
comparing
it
with
experimental
measurements
closing
rates
nanocalipers
landscapes
overhang
demonstrating
excellent
agreement
suggesting
fast
angular
relaxation
relative
binding.
These
findings
offer
insights
that
guide
devices
specific
state
lifetimes.
Moreover,
framework
introduced
here
lays
groundwork
advancements
modeling
kinetics
nanostructures.