Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(38)
Published: June 27, 2024
We
report
the
use
of
wet-spinning
to
3D-print
gels
from
low-molecular-weight
gelators
(LMWGs)
based
on
1,3
:
2,4-dibenzylidenesorbitol
(DBS)
scaffold.
Gel
stripes
assembled
DBS-CONHNH
Gels,
Journal Year:
2025,
Volume and Issue:
11(2), P. 134 - 134
Published: Feb. 13, 2025
The
diketopyrrolopyrrole
(DPP)
core
is
widely
recognized
for
its
applications
in
organic
electronics
and
photonics
due
to
exceptional
electronic
optical
properties.
Recently,
DPP-based
materials
have
shown
remarkable
π-π
stacking
interactions
tunable
self-assembly,
making
them
promising
candidates
gel
formation.
However,
the
development
of
gels
remains
infancy,
primarily
hindered
by
challenges
such
as
limited
gelation
efficiency,
poor
mechanical
robustness,
sensitivity
environmental
conditions.
Overcoming
these
issues
crucial
unlocking
their
full
potential
functional
soft
materials.
This
review
compiles
analyzes
existing
studies
on
DPP-containing
systems,
highlighting
structural
versatility,
self-assembly
mechanisms,
advantages
over
conventional
gelators.
By
examining
works,
we
identify
key
strategies
DPP
formation,
evaluate
physicochemical
performance,
discuss
innovative
approaches
address
current
limitations.
Finally,
propose
future
research
directions
advance
field
establish
a
robust
platform
next-generation
Molecules,
Journal Year:
2024,
Volume and Issue:
29(9), P. 2149 - 2149
Published: May 5, 2024
We
modified
C3-symmetric
benzene-1,3,5-tris-amide
(BTA)
by
introducing
flexible
linkers
in
order
to
generate
an
N-centered
BTA
(N-BTA)
molecule.
The
N-BTA
compound
formed
gels
alcohols
and
aqueous
mixtures
of
high-polar
solvents.
Rheological
studies
showed
that
the
DMSO/water
(1:1,
v/v)
were
mechanically
stronger
compared
other
gels,
a
similar
trend
was
observed
for
thermal
stability.
Powder
X-ray
analysis
xerogel
obtained
from
various
revealed
packing
modes
gelators
these
systems
similar.
stimuli-responsive
properties
towards
sodium/potassium
salts
indicated
gel
network
collapsed
presence
more
nucleophilic
anions
such
as
cyanide,
fluoride,
chloride
at
MGC,
but
intact
when
contact
with
nitrate,
sulphate,
acetate,
bromide,
iodide
salts,
indicating
anion-responsive
gels.
Anion-induced
formation
less
below
MGC
N-BTA.
ability
act
adsorbent
hazardous
anionic
cationic
dyes
water
evaluated.
results
ethanolic
successfully
absorbed
methylene
blue
methyl
orange
water.
This
work
demonstrates
potential
gelator
material
promising
candidate
purification.
The
demand
for
safe,
edible
structuring
agents
across
industries
such
as
food,
cosmetics,
agriculture,
pharmaceuticals,
and
biotechnology
has
intensified
over
recent
decades.
In
particular,
there
is
a
pressing
need
to
replace
trans
saturated
fatty
acids,
known
contributors
cardiovascular
other
health
issues,
with
healthier
alternatives.
This
study
introduces
new
class
of
glycolipid-based
synthesized
from
monosaccharides
ricinoleic
acid,
both
classified
Generally
Recognized
Safe
(GRAS).
straightforward
synthesis
method
yields
compounds
capable
self-assembling
in
various
vegetable
oils
solvents,
glycerol,
ethylene
glycol,
poly(ethylene
glycol),
forming
stable
oleogels
organogels
via
diverse
intermolecular
interactions.
Morphological
investigations
using
optical
microscopy
field
emission
scanning
electron
(FE-SEM)
reveal
globular
microarchitecture
within
these
molecular
gels,
75–150
nm
diameters.
Rheological
analyses
confirm
the
gels'
viscoelasticity,
thermal
processability,
thixotropic
behavior,
supporting
their
adaptability
formulations.
These
findings
underscore
potential
self-assembled
glycolipids
5a
5d,
which
form
versatile,
health-conscious
significant
applications
food
technology.
Chemistry - A European Journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 23, 2025
Abstract
A
novel
isopthalamide
based
receptor
H
2
L2
featuring
two
p
‐benzoic
acid
units
has
been
synthesised
and
its
anion
binding
properties
analysed
by
1
H‐NMR
spectroscopy
in
DMSO‐
d
6
/0.5
%
O.
As
expected,
the
presence
of
tetrabutylammonium
(TBA)
fluoride
deprotonation
carboxylic
moieties
was
observed.
However,
deprotonated
2−
able
to
bind
situ
formed
HF
−
via
formation
H‐bonds
with
amide
NHs.
When
dissolved
THF
4
equivalents
TBAF
were
added
CH
3
CN
a
unique
sol‐gel
transition
occurred
giving
rise
stable
thixotropic
supramolecular
gel.
Theoretical
calculations
elucidated
gelation
mechanism
strongly
support
findings
observed
experimentally.
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(7)
Published: Feb. 1, 2025
Abstract
In
this
study,
we
report
an
ecofriendly,
inexpensive
and
sustainable
method
for
successful
effective
dye
removal
from
aqueous
media
up
to
90%
at
room
temperature.
Three
disperse
dyes
were
examined
in
study
including,
Red
RD‐RBLS,
Foron
Blue
SE‐2R
Black
S‐2B2S.
The
is
carried
out
using
a
thiourea
based
low
molecular
weight
organogelator
(LMWOG)
prepared
(+)‐dehydroabietylamine,
tricyclic
diterpene,
through
adsorption.
LMWOGs
form
self‐assemblies
non‐covalent
interactions
(H‐bonding,
π−π
stacking,
electrostatic
hydrophobic
interactions).
adsorption
also
occurs
due
among
gelator
moleculaes
molecules.
recovered
reused.
Additionally,
the
synthesized
(
T‐1)
shows
potential
as
oil
spill
remedy.
T
‐
1)
applied
powder
gelate
hexane,
ethylacetate,
crudeoil,
petrol,
diesel
kerosine
effectively
oil‐water
mixture.
Gels,
Journal Year:
2025,
Volume and Issue:
11(3), P. 160 - 160
Published: Feb. 23, 2025
Stimuli-responsive
materials,
particularly
supramolecular
hydrogels,
exhibit
a
dynamic
adaptability
to
external
factors
such
as
pH
and
ultrasound.
Among
these,
phenylalanine
(Phe)-derived
hydrogels
are
promising
due
their
biocompatibility,
biodegradability,
tunable
properties,
making
them
ideal
for
biomedical
applications.
This
study
explores
the
effects
of
ultrasound
on
gelation
properties
N-substituted
Phe
derivatives,
with
primary
focus
role
in
optimizing
process.
A
series
derivatives
were
synthesized
via
reductive
amination
hydrolysis.
Hydrogel
formation
was
possible
two
these
compounds,
namely
G1
G2,
using
following
methods:
heating–cooling
(H–C)
heating–ultrasound–cooling
(H–US–C).
The
critical
concentration
(CGC),
kinetics,
thermal
stability
(Tgel),
viscoelastic
assessed.
Morphological
cytotoxicity
analyses
performed
confirm
suitability
gels
Both
G2
demonstrated
enhanced
under
H–US–C
protocol
compared
H–C,
notable
reductions
CGC
(up
47%)
time
(by
over
90%).
Ultrasound-induced
led
an
improved
network
density
stability,
while
maintaining
reversibility
mechanical
comparable
those
formed
without
Cytotoxicity
studies
confirmed
high
cell
viability
rates
above
95%
across
tested
concentrations.
Given
similar
rheological
morphological
regardless
preparation
method,
drug
release
experiments
representative
gel
samples
efficient
encapsulation
controlled
5-fluorouracil
methotrexate
from
supporting
potential
pH-responsive
delivery
platforms.
highlights
powerful
tool
accelerating
process
which
is
relevant
applications
requiring
rapid
formation.
developed
Phe-based
also
demonstrate
characteristics
systems.