Journal of the American Chemical Society,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 12, 2024
Intestinal
bacterial
infections
have
become
a
significant
threat
to
human
health.
However,
the
current
typical
antibiotic-based
therapies
not
only
contribute
drug
resistance
but
also
disrupt
gut
microbiota
balance,
resulting
in
additional
adverse
effects
on
life
activities.
There
is
an
urgent
need
develop
new
antibacterial
materials
that
selectively
eliminate
pathogenic
bacteria
without
disrupting
beneficial
communities
or
promoting
resistance.
Herein,
we
utilize
quorum
sensing
(QS),
universal
mechanism
for
regulating
community
behavior,
supramolecular
QS
trap
by
encapsulating
cucurbit[7]uril
(CB[7])
1-vinyl-3-pentylimidazolium
bromide
([VPIM]Br)
form
switch
([VPIM]Br⊂CB[7])
through
host–guest
interactions
followed
grafting
it
onto
cell
surfaces
using
atom
transfer
radical
polymerization.
Subsequently,
matched
pathogens
are
recognized
and
aggregated
interbacterial
signals.
Furthermore,
addition
of
amantadine
(AD)
facilitates
release
[VPIM]Br
competitive
binding
CB[7]
[VPIM]Br⊂CB[7]
sterilization.
This
specifically
triggers
self-aggregation
efficient
elimination
bacteria.
The
[VPIM]Br⊂CB[7]-based
can
increase
diversity
abundance
intestinal
microorganisms
mice,
effectively
treating
Escherichia
coli
K88-induced
damage
perturbing
balance.
supramolecular-switched
opens
up
promising
avenue
recognize
eradicate
antibiotic-free
treatment
other
inflammatory
diseases.
Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 3, 2025
Multifunctional
photochromic
hybrid
materials
have
attracted
great
attention
due
to
their
wide
prospects
in
information
storage,
molecular
switches,
and
sensors.
Herein,
three
new
coordination
polymers
(CPs)
with
paramagnetic
Mn2+
ions,
namely
[Mn2(TTVP)(m-BDC)2]
(1),
[Mn3(TTVP)(p-BDC)3(H2O)2]·0.5H2O
(2),
[Mn(TTVP)(H2O)4]·(4,4'-BPC)·2H2O
(3)
been
synthesized
(TTVP
=
2,5-bis(pyridinium-4-yl)thiazolo[5,4-d]thiazole
propionate,
m-H2BDC
isophthalic
acid,
p-H2BDC
terephthalic
4,4'-H2BPC
4,4'-diphenyldicarboxylic
acid).
Interestingly,
under
Ultraviolet
(UV)
light
irradiation,
these
compounds
exhibit
distinct
performances
photoinduced
electron
transfer
(PIET)
between
aromatic
carboxylic
acids
TTVP,
as
validated
by
spectroscopic
structural
analyses.
The
coloration
kinetics
final
states
are
finely
tuned
modulating
the
number
strength
of
weak
interactions
donors
(EDs)
acceptors
(EAs).
Furthermore,
complexes
magnetization
enhancement
at
room
temperature,
while
2
3
reversible
fluorescence
modulation
during
coloration-decoloration
cycles.
introduction
photoregulated
fluorescent
magnetism
into
PIET
presents
a
promising
approach
for
development
multifunctional
materials,
holding
potential
range
applications.
Crystal Growth & Design,
Год журнала:
2024,
Номер
24(22), С. 9735 - 9742
Опубликована: Ноя. 2, 2024
Three
POM–viologen
compounds
were
synthesized
at
a
temperature
of
120
°C
by
traditional
hydrothermal
technique,
namely
(1-Cby)·(1,1′-Bby)·[(α–PW11O39)NiII(1-Cby)]·7H2O
(PW11Ni-BCby),
(1-Cby)·(1,1′-Bby)·[(α-PW11O39)CuII(1-Cby)]·6H2O
(PW11Cu-BCby),
and
(1-Cby)2[H5(α-PW11O39)2Zn2II(1-Cby)2]·27H2O
(PW11Zn-Cby)
(1-Cby·Br
=
1-cyclopropylmethyl-4,4′-bipyridinyl-1-ium
bromide;
1,1′-Bby·Br
1,1′-bis(cyclopropylmethyl)-4,4′-bipyridine
bromide).
All
three
contain
PW11M
(M
Ni,
Cu,
Zn),
transition
metal
M-substituted
monosubstituted
Keggin-type
structure.
These
can
exhibit
variety
excellent
properties
to
stimulate
discoloration
in
light,
heat,
electricity.
Moreover,
PW11Cu-BCby
PW11Zn-Cby
be
applied
inkless
erasable
printing
dual
anticounterfeiting
applications
based
on
their
photochromic
behaviors.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 12, 2024
Intestinal
bacterial
infections
have
become
a
significant
threat
to
human
health.
However,
the
current
typical
antibiotic-based
therapies
not
only
contribute
drug
resistance
but
also
disrupt
gut
microbiota
balance,
resulting
in
additional
adverse
effects
on
life
activities.
There
is
an
urgent
need
develop
new
antibacterial
materials
that
selectively
eliminate
pathogenic
bacteria
without
disrupting
beneficial
communities
or
promoting
resistance.
Herein,
we
utilize
quorum
sensing
(QS),
universal
mechanism
for
regulating
community
behavior,
supramolecular
QS
trap
by
encapsulating
cucurbit[7]uril
(CB[7])
1-vinyl-3-pentylimidazolium
bromide
([VPIM]Br)
form
switch
([VPIM]Br⊂CB[7])
through
host–guest
interactions
followed
grafting
it
onto
cell
surfaces
using
atom
transfer
radical
polymerization.
Subsequently,
matched
pathogens
are
recognized
and
aggregated
interbacterial
signals.
Furthermore,
addition
of
amantadine
(AD)
facilitates
release
[VPIM]Br
competitive
binding
CB[7]
[VPIM]Br⊂CB[7]
sterilization.
This
specifically
triggers
self-aggregation
efficient
elimination
bacteria.
The
[VPIM]Br⊂CB[7]-based
can
increase
diversity
abundance
intestinal
microorganisms
mice,
effectively
treating
Escherichia
coli
K88-induced
damage
perturbing
balance.
supramolecular-switched
opens
up
promising
avenue
recognize
eradicate
antibiotic-free
treatment
other
inflammatory
diseases.
