A Portable Electrochemical Biosensor Based on an Amino-Modified Ionic Metal–Organic Framework for the One-Site Detection of Multiple Organophosphorus Pesticides
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 3, 2024
Constructing
stable,
portable
sensors
and
revealing
their
mechanisms
is
challenging.
Ion
metal-organic
frameworks
(IMOFs)
are
poised
to
serve
as
highly
effective
electrochemical
for
detecting
organophosphorus
pesticides
(OPs),
leveraging
unique
charge
properties.
In
this
work,
an
amino-modified
IMOF
was
constructed
combined
with
near-field
communication
(NFC)
technology
develop
a
portable,
touchless,
battery-free
biosensor
Язык: Английский
Homochiral versus Racemic 2D Covalent Organic Frameworks
José del Refugio Monroy,
Tejas Deshpande,
Joël Schlecht
и другие.
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 15, 2025
The
synthesis
of
homochiral
two-dimensional
covalent
organic
frameworks
(2D
COFs)
from
chiral
π-conjugated
building
blocks
is
challenging,
as
units
often
lead
to
misaligned
stacking
interactions.
In
this
work,
we
introduce
helical
chirality
into
2D
COFs
using
configurationally
stable
enantiopure
and
racemic
[5]helicenes
linkers
in
the
backbone
[5]HeliCOFs
powders
films.
Through
condensation
with
1,3,5-triformylbenzene
(TFB)
or
1,3,5-triformylphloroglucinol
(TFP),
our
approach
enables
efficient
formation
a
set
[5]HeliCOFs.
resulting
carbon-based
crystalline
porous
exhibit
distinct
structural
features
different
properties
between
counterparts.
Propagation
leads
observation
advanced
chiroptical
far-red
visible
spectrum,
along
less
compact
structure
compared
frameworks.
Homogeneous
thin
films
disclosed
photoluminescent
arising
controlled
growth
highly
ordered
lattices.
present
study
offers
insight
general
framework
extends
Liebisch-Wallach
rule
COFs.
Язык: Английский
Chiral Hydrogen‐Bonded Organic Frameworks: Design, Synthesis, and Applications†
Chinese Journal of Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 12, 2025
Comprehensive
Summary
Chiral
framework
materials,
such
as
chiral
metal‐organic
frameworks
(MOFs)
and
covalent
organic
(COFs),
have
been
extensively
reported
studied.
However,
research
on
hydrogen‐bonded
(HOFs)
is
far
behind.
HOFs
present
a
novel
approach
for
creating
thanks
to
their
mild
synthesis
conditions,
solution
processability,
ease
of
repair
regeneration.
This
review
provides
comprehensive
overview
the
design
strategies
HOFs,
highlighting
recent
advancements
exploring
applications
emerging
materials.
Key
Scientists
In
1990s,
Wuest
his
collaborators
advanced
development
HOF
field
through
porous
networks.
2011,
Chen
co‐workers
one
first
examples
microporous
achieved
permanent
porosity.
2014,
Ward
developed
series
two‐dimensional
guanidine‐sulfonate
with
tunable
crystal
structures,
whose
flexibility
allowed
them
be
used
structural
detection.
Further,
in
2015,
Chen,
Li
constructed
example
derived
from
building
block.
2017,
Yuan,
Wu,
synthesized
an
ultrastable,
easily
regenerated
molecular
2018,
Cao,
Liu
crystalline,
recyclable
synergistic
chemo
photodynamic
therapy.
2021,
Zhang
ethylene/ethane
separation
stable
gating
mechanism.
2022,
Liu,
innovative
mechanochemical
strategy
synthesis.
The
story
still
unfolding.
Язык: Английский
Chiral Amplification and Regulation: Design and Applications of Circularly Polarized Luminescence‐Active Materials Derived From Macrocyclic Compounds
Aggregate,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 9, 2025
ABSTRACT
Chirality
is
a
fundamental
property
in
molecules
and
biological
systems,
characterized
by
asymmetric
configurational
features.
Circularly
polarized
luminescence
(CPL)
materials
have
gained
significant
attention
due
to
their
unique
optical
activities,
with
applications
3D
displays,
chiral
sensors,
catalysis,
more.
Chiral
transfer
amplification
typically
involve
the
generation
of
chirality
excited
state,
facilitated
interactions
like
energy
transfer,
electron
or
induction.
Supramolecular
self‐assembly
strategies,
particularly
macrocyclic
compounds,
enable
linking
achiral
luminescent
units
through
intermolecular
interactions.
Macrocyclic
hosts—cyclodextrins,
calix[
n
]arenes,
pillar[
cyclophanes,
cucurbit[
]urils—are
especially
promising
stable
structures
adjustable
cavities
for
guest
encapsulation.
These
compounds
induce
photophysical
properties
host–guest
complexation,
making
them
ideal
constructing
amplification,
CPL‐active
materials.
This
review
summarizes
advancements
multicolor
CPL
materials,
sensing,
induction,
separation,
highlighting
potential
supramolecular
material
design.
The
challenges
future
directions
this
field
are
also
discussed,
aiming
guide
further
research
application
systems.
Язык: Английский