Abstract
Photoinduced
transitions
between
the
solid,
glass,
and
liquid
states
based
on
molecular
photoswitches
promise
a
wide
variety
of
applications.
Photoswitchable
adhesives
are
representative
examples
expected
to
contribute
material
recycling
for
sustainable
future
in
era
composite
materials
due
strong
bonding
on-demand
photo-induced
debonding
with
minimal
damage
adherends.
Only
few
known
undergo
these
transitions,
but
recent
progress,
mainly
azobenzene,
has
been
remarkable.
Here,
we
review
photoinduced
small
molecules
polymers
over
approximately
decade
systematically
discuss
designs,
mechanisms,
applications,
merits
demerits,
challenges
each
photoswitch
whole
field.
We
hope
this
provides
useful
information,
inspiration,
ideas
development
field
expansion
its
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(29), С. 19609 - 19620
Опубликована: Июль 11, 2024
Azobenzenes
(Ph-N═N-Ph)
are
known
as
the
most
widely
studied
molecular
photoswitches,
and
recent
rise
of
azoheteroarenes
(Het-N═N-Ph
or
Het-N═N-Het)
offers
great
opportunities
to
advance
this
already
mature
field.
A
common
limitation
is
that
azo-switches
generally
require
harmful
UV
light
for
activation,
which
hinders
their
application
across
various
fields.
Despite
efforts
in
developing
visible-light
azobenzenes
over
past
few
decades,
potential
heteroaryl
azoswitches
remains
largely
unexplored.
This
Perspective
summarizes
state-of-the-art
advancements
azoswitches,
covering
design
strategies,
structure-property
relationship,
applications.
We
highlight
distinctive
advantages
research
development
switches.
Furthermore,
we
discuss
challenges
emerging
field
propose
solutions
address
crucial
issues
such
spectral
red-shift
thermal
half-life.
Through
paper,
aim
provide
inspiration
further
exploration
field,
anticipation
growing
prosperity
bright
future
azoheteroarene
photoswitches.
Chemical Reviews,
Год журнала:
2024,
Номер
124(5), С. 2553 - 2582
Опубликована: Март 4, 2024
The
intricate
and
complex
features
of
enzymatic
reaction
networks
(ERNs)
play
a
key
role
in
the
emergence
sustenance
life.
Constructing
such
vitro
enables
stepwise
build
up
complexity
introduces
opportunity
to
control
activity
using
physicochemical
stimuli.
Rational
design
modulation
network
motifs
enable
engineering
artificial
systems
with
emergent
functionalities.
Such
functional
are
useful
for
variety
reasons
as
creating
new-to-nature
dynamic
materials,
producing
value-added
chemicals,
constructing
metabolic
modules
synthetic
cells,
even
enabling
molecular
computation.
In
this
review,
we
offer
insights
into
chemical
characteristics
ERNs
while
also
delving
their
potential
applications
associated
challenges.
Chemical Science,
Год журнала:
2024,
Номер
15(11), С. 3872 - 3878
Опубликована: Янв. 1, 2024
Simple
structural
modifications
significantly
boost
the
photochromic
performance
of
imine-based
photoswitches.
This
work
lays
a
foundation
for
exploring
new
motifs
in
light-addressable
dynamic
combinatorial
chemistry.
Chemistry - A European Journal,
Год журнала:
2021,
Номер
28(18)
Опубликована: Дек. 29, 2021
Inspired
by
human
vision,
a
diverse
range
of
light-driven
molecular
switches
and
motors
have
been
developed
for
fundamental
understanding
application
in
material
science
biology.
Recently,
the
design
synthesis
visible
actively
pursued.
This
emerging
trend
is
partly
motivated
to
avoid
harmful
effects
ultraviolet
light,
which
was
necessary
drive
classical
at
least
one
direction,
impeding
their
employment
biomedical
photopharmacology
applications.
Moreover,
are
demonstrated
enable
benign
optical
materials
advanced
photonic
devices.
Therefore,
during
past
several
years,
based
on
azobenzene
derivatives,
diarylethenes,
1,2-dicyanodithienylethenes,
hemithioindigo
iminothioindoxyls,
donor-acceptor
Stenhouse
adducts,
overcrowded
alkene
judiciously
designed,
synthesized,
used
development
functional
systems
wide
In
this
Review,
we
present
recent
developments
toward
motors,
with
applications
fabrication
science,
bioscience,
pharmacology,
etc.
The
realized
so
far
undoubtedly
widen
scope
these
interesting
compounds
technological
biological
We
hope
Review
article
could
provide
additional
impetus
inspire
further
research
interests
future
exploration
materials,
systems,
Journal of the American Chemical Society,
Год журнала:
2022,
Номер
144(51), С. 23249 - 23263
Опубликована: Дек. 13, 2022
Cooperative
metal–photoswitch
interfaces
comprise
an
application-driven
field
which
is
based
on
strategic
coupling
of
metal
cations
and
organic
photochromic
molecules
to
advance
the
behavior
both
components,
resulting
in
dynamic
molecular
material
properties
controlled
through
external
stimuli.
In
this
Perspective,
we
highlight
ways
interplay
can
be
utilized
as
a
tool
modulate
system's
physicochemical
performance
variety
structural
motifs,
including
discrete
complexes
or
cages,
well
periodic
structures
such
metal–organic
frameworks.
This
Perspective
starts
with
smallest
subunit
interactions
occur,
progresses
toward
functional
materials.
particular,
explore
role
relationship
for
gaining
fundamental
knowledge
switchable
electronic
magnetic
properties,
design
stimuli-responsive
sensors,
optically
gated
memory
devices,
catalysts,
photodynamic
therapeutic
agents.
The
abundance
systems
natural
world
only
foreshadows
creative
directions
that
will
uncover
full
potential
coming
years.
Journal of the American Chemical Society,
Год журнала:
2021,
Номер
144(1), С. 219 - 227
Опубликована: Дек. 29, 2021
Light-responsive,
spiropyran-functionalized
hydrogels
have
been
used
to
create
reversibly
photoactuated
structures
for
applications
ranging
from
microfluidics
nonlinear
optics.
Tailoring
a
hydrogel
system
particular
application
requires
an
understanding
of
how
co-monomer
composition
affects
the
switching
dynamics
spiropyran
chromophore.
Such
gels
are
frequently
designed
be
responsive
different
stimuli
such
as
light,
temperature,
and
pH.
The
coupling
these
influences
can
significantly
alter
behavior
in
ways
not
currently
well
understood.
To
better
understand
influence
co-monomers
on
isomerization
dynamics,
we
use
UV-vis
spectroscopy
time-dependent
fluorescence
intensity
measurements
study
spiropyran-modified
polymerized
four
common
precursors
pH
temperature
responsivity:
acrylamide,
acrylic
acid,
N-isopropylacrylamide,
2-(dimethylamino)ethyl
methacrylate.
In
acidic
neutral
gels,
observe
unusual
nonmonotonic,
triexponential
under
405
nm
irradiation
that
cannot
explicated
by
either
established
spiropyran-merocyanine
interconversion
model
or
hydrolysis.
explain
results,
introduce
analytical
interconversions
includes
H-aggregated
merocyanine
its
light-triggered
disaggregation
irradiation.
This
provides
excellent
fit
observed
elucidates
exactly
creating
internal
gel
environment
promotes
fast
complete
conversion
hydrophilic
speciesto
hydrophobic
form,
which
is
desired
most
light-sensitive
actuators.
achieved
incorporating
acid
monomers
minimizing
aggregate
concentration.
Beyond
actuators,
conclusions
particularly
critical
optical
computing
applications.
Chemical Reviews,
Год журнала:
2022,
Номер
122(24), С. 17397 - 17478
Опубликована: Окт. 19, 2022
Hierarchical
materials
that
exhibit
order
over
multiple
length
scales
are
ubiquitous
in
nature.
Because
hierarchy
gives
rise
to
unique
properties
and
functions,
many
have
sought
inspiration
from
nature
when
designing
fabricating
hierarchical
matter.
More
more,
however,
nature's
own
high-information
content
building
blocks,
proteins,
peptides,
peptidomimetics,
being
coopted
build
because
the
information
determines
structure,
function,
interfacial
interactions
can
be
readily
encoded
these
versatile
macromolecules.
Here,
we
take
stock
of
recent
progress
rational
design
characterization
produced
blocks
with
a
focus
on
stimuli-responsive
"smart"
architectures.
We
also
review
advances
use
computational
simulations
data-driven
predictions
shed
light
how
side
chain
chemistry
conformational
flexibility
macromolecular
drive
emergence
acquisition
ionic,
solvent,
surface
effects
influence
outcomes
assembly.
Continued
above
areas
will
ultimately
usher
an
era
where
understanding
designed
interactions,
effects,
solution
conditions
harnessed
achieve
predictive
synthesis
across
scale
emergent
phenomena
self-assembly
reconfiguration
blocks.
Nature Communications,
Год журнала:
2022,
Номер
13(1)
Опубликована: Авг. 20, 2022
With
the
wide
application
of
organic
semiconductors
(OSCs),
researchers
are
now
grappling
with
a
new
challenge:
design
and
synthesize
OSCs
materials
specific
functions
to
satisfy
requirements
high-performance
semiconductor
devices.
Strain
engineering
is
an
effective
method
improve
material's
carrier
mobility,
which
fundamentally
originated
from
rearrangement
atomic
packing
model
under
mechanic
stress.
Here,
we
OSC
material
named
AZO-BTBT-8
based
on
high-mobility
benzo[b]benzo[4,5]thieno[2,3-d]thiophene
(BTBT)
as
backbone.
Octane
employed
increase
molecular
flexibility
solubility,
azobenzene
at
other
end
BTBT
backbone
provides
photoisomerization
properties
structural
balance.
Notably,
leads
lattice
strain
in
thin-film
devices,
where
exceptional
device
performance
enhancement
realized.
On
this
basis,
large-scale
flexible
field-effect
transistor
(OFET)
array
fabricated
realizes
high-resolution
UV
imaging
reversible
light
response.
Chemical Communications,
Год журнала:
2023,
Номер
59(6), С. 660 - 669
Опубликована: Янв. 1, 2023
Fluorescence
microscopy
has
revolutionised
our
understanding
of
biological
systems,
enabling
the
visualisation
biomolecular
structures
and
dynamics
in
complex
systems.
The
possibility
to
reversibly
control
optical
or
biochemical
properties
fluorophores
can
unlock
advanced
applications
ranging
from
super-resolution
design
multi-stimuli
responsive
functional
biosensors.
In
this
Highlight,
we
review
recent
progress
small-molecule
photoswitches
applied
imaging
with
an
emphasis
on
molecular
engineering
strategies
promising
applications,
while
underlining
main
challenges
their
implementation.
