The Journal of Physical Chemistry C,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 30, 2024
The
development
of
efficient
photothermal
converters
is
essential
for
thermal
microscopy
and
the
manipulation
materials.
Photoexcitation
heme
in
proteins
its
subsequent
nonradiative
transition
convert
light
energy
into
energy.
converted
released
to
surroundings,
resulting
heating
solvent
water.
Here,
we
examined
heat
release
by
cytochrome
c552
from
Thermus
thermophilus
following
conversion
group
protein.
Upon
irradiation
with
532
nm
light,
Raman
bands
associated
OH
stretching
mode
water
changed
solutions
but
not
protein-free
buffer
solutions.
observed
spectral
changes
closely
resembled
temperature-dependent
were
attributed
a
temperature
increase
due
rise
averaged
over
volume
irradiated
125
mW
was
5.1
K,
which
exceeds
threshold
activate
thermosensitive
cells.
We
discuss
protein
based
on
diffusion
model
excellent
potential
applications
protein-based
molecular
heaters
living
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 13, 2025
Poly(vinyl
chloride)
(PVC)
and
polystyrene
(PS)
are
among
the
least
recycled
plastics.
In
this
work,
we
developed
a
simple
novel
strategy
to
valorize
PVC
PS
plastics
via
photothermal
conversion
(1-chloroethyl)benzene,
commodity
chemical
with
excellent
versatility.
As
is
known
release
HCl
gas
decompose
into
conjugated
polyenes,
envisioned
dual
role
for
While
in
situ-generated
serves
as
chlorine
source,
resulting
dehydrochlorinated-PVC
(DHPVC)
functions
agent
accelerate
hydrochlorination
of
styrene.
We
converted
styrene
up
89%
(1-chloroethyl)benzene
less
than
1
h
white
light
irradiation.
Subsequent
nucleophilic
substitution
on
chloro-adduct
formed
1-phenylethanol
(a
fragrance
additive)
fendiline
heart
disease
drug)
high
yields.
The
system
applied
various
alkenes
compatible
post-consumer
waste
plasticizers.
Ultimately,
upcycling
photothermally
achieved
84%
under
LED
h,
co-upcycling
42%
yield
focused
sunlight
irradiation
just
4
min.
Increasing
plastic
pollution
presents
a
significant
challenge
for
humanity
and
ecosystems.
Photothermal
(light-to-heat)
conversion
has
emerged
as
promising
strategy
recycling
waste.
Upon
light
irradiation,
photothermal
agents
provide
intense
thermal
gradients
localized
to
their
surfaces,
wherein
the
heat
exceeds
degradation
temperature
(Td)
of
polymers,
inducing
efficient
depolymerization
and/or
degradation.
Thermoplastics
(including
polyethylene
terephthalate
(PET),
polypropylene
(PP),
(PE),
polystyrene
(PS),
polycarbonate
(PC))
thermosets
(epoxy
resin)
are
subject
under
mild
conditions.
This
review
summarizes
some
key
results
advancements
in
polymer
waste
mitigation
using
upcycling.
Carbon Energy,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 1, 2025
ABSTRACT
The
urgent
demand
for
renewable
energy
solutions,
propelled
by
the
global
crisis
and
environmental
concerns,
has
spurred
creation
of
innovative
materials
solar
thermal
storage.
Photothermal
phase
change
(PTPCMs)
represent
a
novel
type
composite
material
(PCM)
aimed
at
improving
storage
efficiency
incorporating
photothermal
into
traditional
PCMs
encapsulating
them
within
porous
structures.
Various
encapsulation
have
been
studied,
including
carbon,
expanded
graphite,
ceramics,
but
issues
like
brittleness
hinder
their
practical
use.
To
overcome
these
limitations,
flexible
PTPCMs
using
organic
polymers—like
foams,
hydrogels,
wood—have
emerged,
offering
high
porosity
lightweight
characteristics.
This
review
examines
recent
advancements
in
preparation
based
on
polymer
supports
through
techniques
impregnation
situ
polymerization,
assessing
impact
different
PCM
performance
clarifying
mechanisms
conversion
heat
Subsequently,
most
applications
polymer‐based
are
systematically
summarized,
future
research
challenges
possible
solutions
discussed.
aims
to
foster
awareness
about
potential
promoting
environmentally
friendly
practices
catalyzing
further
this
promising
field.
Accounts of Chemical Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 22, 2025
ConspectusThe
heating
of
matter
upon
interacting
with
light
is
a
fundamental
process
ubiquitous
in
the
natural
world.
With
rise
nanotechnology
over
past
decades,
variety
nanomaterials
capable
converting
into
heat
have
been
discovered
and
their
physicochemical
properties
investigated.
Perhaps
most
exotic
photothermal
metallic
nanocrystals
via
surface
plasmons.
Here
an
incoming
electromagnetic
wave
triggers
oscillation
nanoparticle's
electron
cloud.
When
resonance,
this
generates
enormous
increase
to
absorption
coefficient,
enabling
more
energy
dissipate
as
heat.
The
plasmonic
phenomenon
has
incredibly
diverse
range
functions,
from
vibrant
coloration
medieval
stained-glass
windows
localization
enhancement
at
nanoscale
level.
Plasmonic
or
thermoplasmonics
relatively
new
addition
that
gained
popularity
mainly
through
applications
therapeutics
biotechnology.
Account,
we
aim
put
spotlight
on
use
drive
chemical
synthesis,
rapidly
expanding
area
research
immense
potential.Throughout
long
tradition
chemists
rarely
deviated
typical
oven
hot
plate
set
maintain
homogeneous
temperature
within
reaction
vessel.
In
contrast,
thermoplasmonic
can
introduce
heterogeneity
profile
by
forming
steep
gradients
near
nanoparticles.
Additionally,
conversion
enables
activated
processes
benefit
advantages
initiation,
e.g.,
contactless
activation
spatial
control.
Thus,
offers
attractive
alternative
long-standing
norm.Several
early
studies
demonstrated
power
method,
taking
advantage
localized
carry
out
reactions
minimal
change
bulk
surrounding
medium.
However,
tapping
potential
be
very
challenging
colloidal
solutions
tend
aggregate
even
small
changes
environment.
Different
strategies
utilized
overcome
obstacle,
for
example
embedding
particles
glass
other
heterogeneous
substrates.
Our
group
experimented
coating
gold
nanostructures
silica
shell.
This
ensures
structural
stability
critical
chemistry.
Recently,
applied
methodology
advance
olefin
metathesis,
synthesis
iron
oxide
(IO),
palladium
(Pd)
silver
(Ag)
nanoparticles,
formation
various
metal-organic
frameworks
(MOFs).
addition,
highly
stable
hybrid
materials
could
isolated
composites
polymers,
MOFs,
nanostructures.
large
conditions
different
precursors,
additives,
catalysts
our
method
proved
compatible
highlight
versatility
encapsulation
provides.
unique
coupled
added
open
wide
opportunities
efficient
altogether
reactivity
along
novel
composite
materials.
Communications Chemistry,
Journal Year:
2025,
Volume and Issue:
8(1)
Published: April 25, 2025
Abstract
Irradiating
a
chromophore
allows
cancer
diagnostics
by
photoacoustic
(PA)
imaging,
but
also
causes
transformation
of
light
into
thermal
energy
and
so
enables
therapy
photothermal
effects.
Useful
chromophores
for
(PTT),
such
as
nanoconfined
oligomers
polymers,
should
not
only
display
an
excellent
light-to-heat
efficiency,
in
addition
must
biocompatibility
good
water-solubility.
We
this
study
have
designed
water-dispersible,
nanocaged
polypyrroles
(PPy),
embedded
single-chain
nanoparticles
(SCNP,
sized
6.8
–
8.9
nm)
displaying
thermoresponsivity,
reaching
largely
increased
PTT-effects.
Such
encaged
PPy-SCNPs
allow
efficient
heat
conversion
temperatures
up
to
85°C.
In
parallelized
96-well-plate-design
the
can
effect
almost
complete
death
illuminated
(cancer)
cells
at
already
low
concentrations
(0.001
mg/mL)
with
radiant
fluxes.
The
thermoresponsivity
SCNPs,
surrounding
PPy-chains,
then
responds
heat,
creating
unique
self-amplifying
imaging.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(50), P. 34583 - 34590
Published: Dec. 10, 2024
Photoinduced
ligand-to-metal
charge
transfer
(LMCT)
is
a
powerful
technique
for
the
formation
of
reactive
radical
species
via
homolytic
cleavage
metal–ligand
bond.
Here,
we
present
that
excited
state
LMCT
cobyrinate
complex
can
be
accessed
by
tuning
its
axial
coordination
with
thiolates
as
ligands.
We
demonstrate
photoreduction
cobalt
Co–S
bond
cleavage,
guided
DFT
calculations,
which
signify
relevance
thiolate
ligands
facilitating
reactivity.
By
exploiting
this
cobyrinate,
developed
catalyst-controlled
activator
regeneration
mechanism
to
catalyze
an
efficient
atom
polymerization
(ATRP)
under
low-energy
light
irradiation.
Tuning
sphere
provides
further
control
over
electronic
properties
while
also
accessing
photothermal
conversion
in
mediating
ATRP
catalysis.
The Journal of Physical Chemistry C,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 5, 2024
The
photochromic
behavior
of
aqueous
nanocolloids
T-type
spironaphthooxazine
(SNO)
was
studied
by
continuous
wave
(CW)
light
and
intense
nanosecond
pulse
laser
irradiation.
When
a
single
shot
the
355
nm
having
duration
6
ns
irradiated
to
SNO
solution,
remarkably
increased
in
conversion
yield
from
colorless
spiro
(SP)
form
blue-colored
merocyanine
(MC)
low
excitation
intensity
region
compared
solution.
amplified
mechanism
explained
time
lags
between
four
processes:
temperature
elevation
(subns)
nanoparticle
cooling
(ns)
water,
photoisomerization
reaction
MC
(ps)
molecules,
their
thermal
back
SP
(>ms).
During
exposure,
could
be
elevated
above
room
rapidly
drop
temperature.
molecules
high-temperature
advantageously
underwent
picosecond
scale
rather
than
millisecond
scale,
resulting
greater
increase
rapid
process
can
work
as
an
inhibitor
decrease
reaction.
combination
transient
heating
water
opens
novel
photoreaction
model
colloidal
solution
photofunctional
organic
nanomaterials.
