Stability and Properties of Ultraviolet Filter Avobenzone under Its Diketo/Enol Tautomerization Induced by Molecular Encapsulation with β-Cyclodextrin
Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 7, 2025
Inclusion
complexation
of
the
sunscreen
ingredient
avobenzone
(AVB)
with
β-cyclodextrin
(β-CD)
was
investigated
to
improve
its
aqueous
solubility
and
photostability;
another
ultraviolet
(UV)
filter,
oxybenzone
(OXB),
phytochemical
antioxidant
curcumin
(CUR)
served
as
a
comparison.
In
this
study,
1-octanol/water
partition
coefficients,
acid
dissociation
constants,
phase-solubility
diagrams
β-CD,
ultraviolet–visible
(UV–vis)
spectral
changes
induced
by
UVA1
(365
nm)
irradiation
were
evaluated.
β-CD
at
concentrations
50–100
times
that
AVB
most
effectively
protected
photostability
AVB.
Additionally,
an
UVA1-insensitive
species
diketo
tautomer,
which
has
UVC-absorbing
band
potential
cause
photodegradation,
stored
in
inclusion
complex.
Acetonitrile–water
mixtures
various
volume
ratios
screened
mimic
internal
cavity
for
tautomeric
using
nuclear
magnetic
resonance
(NMR)
integrals
components.
The
results
indicated
provides
hydrophobic
environment
similar
40–50%
acetonitrile
solution
enhances
However,
excess
hyperchromic
effect
on
tautomer.
Aggregation
AVB/β-CD
complexes
≥2
mM
UVC
absorption.
To
avoid
molar
ratio
is
recommended
optimal
composition.
This
study
newly
exhibited
mitigates
reactivity
toward
inducing
tautomer
form
within
cavity.
Language: Английский
Thiolated and Carboxymethylated Jackfruit Seed Starch Nanocrystals as Polymeric Drug Carriers for Curcumin Delivery to Cancer Cells
Starch - Stärke,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 9, 2025
ABSTRACT
Jackfruit
seeds
are
rich
in
starch
and
can
be
used
as
an
alternative
source
of
the
polymer.
Starch
nanocrystals
act
a
carrier
to
improve
curcumin's
anti‐cancer
effect.
This
study
evaluated
modified
jackfruit
carriers
for
delivering
curcumin
MCF‐7
breast
cancer
cell
lines.
Nanocrystals
were
prepared
by
acid
hydrolysis
carboxymethylation
thiolation.
The
forms
characterized
scanning
electron
microscopy,
X‐ray
diffraction,
Fourier
transform
infrared
spectroscopy,
drug
loading,
mucoadhesion,
toxicity.
Curcumin‐loaded
starches
vitro
release
cytotoxicity
on
cells.
had
average
particle
size
6.15
±
0.80
nm,
with
altered
morphology
after
modification.
starch's
crystallinity
(27.18%)
increased
(37.54%)
thiolation
(41.37%)
but
decreased
(23.29%).
highest
loading
(70.23%
0.23%)
was
recorded
carboxymethylated
nanocrystals,
then
thiolated
(63.37%
0.40%),
lowest
(49.31%
0.13%)
native
starch.
Mucoadhesion
improved
thiolation,
curcumin‐loaded
produced
IC
50
value
(42.5
0.12
µm/mL)
lower
than
plain
(86.80
0.10
µm/mL).
Modified
possess
acceptable
properties
potential
candidates
effective
delivery
Language: Английский
Chitosan/hydroxypropyl methylcellulose acetate succinate nanoparticles as a promising delivery system for curcumin in MDA-MB-231 breast cancer cells
Layla Schlichting,
No information about this author
Giuliana Valentini,
No information about this author
Bruna Mattos Dos Santos
No information about this author
et al.
Journal of Molecular Liquids,
Journal Year:
2025,
Volume and Issue:
unknown, P. 127600 - 127600
Published: April 1, 2025
Language: Английский
Carbohydrate polymer-based nanoparticles in curcumin delivery for cancer therapy: A review
Kexin Meng,
No information about this author
Xintong Tu,
No information about this author
F.W. Sun
No information about this author
et al.
International Journal of Biological Macromolecules,
Journal Year:
2025,
Volume and Issue:
unknown, P. 140441 - 140441
Published: Jan. 1, 2025
Language: Английский
Nanoparticles for Photodynamic Therapy of Breast Cancer: A Review of Recent Studies
Molecules,
Journal Year:
2025,
Volume and Issue:
30(7), P. 1571 - 1571
Published: March 31, 2025
Photodynamic
therapy
(PDT)
is
a
therapeutic
method
based
on
the
interaction
between
light
and
photosensitizer.
Supported
by
nanoparticles,
this
represents
promising
interdisciplinary
approach
for
treatment
of
many
diseases.
This
article
reviews
latest
2024
developments
in
design
applications
nanoparticles
dedicated
to
stand-alone
PDT
breast
cancer.
Strategies
improve
efficacy
enhancing
reactive
oxygen
species
(ROS)
production,
precise
delivery
photosensitizers
their
stabilization
systemic
circulation
are
discussed,
among
others.
Results
from
preclinical
studies
indicate
significant
improvements
efficacy,
including
inhibition
tumor
growth,
reduction
metastasis
improvement
immune
microenvironment.
The
potential
these
technologies
expand
medicine
need
further
clinical
trials
confirm
safety
highlighted.
Language: Английский
Nanometer preparation of natural bioactive compounds for treatment of rheumatoid arthritis
Junping Zhu,
No information about this author
Xiang Qin,
No information about this author
Qi Li
No information about this author
et al.
Journal of Pharmaceutical Analysis,
Journal Year:
2025,
Volume and Issue:
unknown, P. 101341 - 101341
Published: May 1, 2025
Language: Английский
Targeted non-invasive Metformin-Curcumin co-loaded nanohyaluosomes halt osteoarthritis progression and improve articular cartilage structure: A preclinical study
International Journal of Pharmaceutics,
Journal Year:
2024,
Volume and Issue:
unknown, P. 124845 - 124845
Published: Oct. 1, 2024
Language: Английский
Controlled Nitric Oxide-Releasing Nanovehicles for Enhanced Infected Wound Healing: A Study on PDA@BNN6 Encapsulated in GelMA Hydrogel
Jing Yang,
No information about this author
Donghui Jia,
No information about this author
Jialu Qiao
No information about this author
et al.
International Journal of Nanomedicine,
Journal Year:
2024,
Volume and Issue:
Volume 19, P. 11499 - 11516
Published: Nov. 1, 2024
The
photo-activated
thermo/gas
antimicrobial
nanocomposite
hydrogel,
Gel/PDA@BNN6,
is
composed
of
the
nitric
oxide
(NO)
carrier
N,
N'-di-sec-butyl-N,
N'-dinitroso-p-phenylenediamine
(BNN6),
photothermal
(PTT)
material
polydopamine
nanoparticles
(PDA
NPs),
and
methacrylate
gelatin
(GelMA).
This
hydrogel
can
release
NO
gas
in
a
stable
controlled
manner,
generating
localized
effect
when
exposed
to
near-infrared
laser
light.
dual
action
promotes
healing
full-thickness
skin
wounds
that
are
infected.
Language: Английский