Nanoarchitectonics of biohybrid polymer nanocomposite of carboxylated chitosan-phthalate/SnO 2 nanoparticles for dye wastewater treatment: characterisation, isotherm, kinetic, and adsorption optimisation
International Journal of Environmental & Analytical Chemistry,
Год журнала:
2024,
Номер
unknown, С. 1 - 22
Опубликована: Ноя. 20, 2024
Herein,
a
biohybrid
polymer
nanocomposite
of
carboxylated
chitosan-phthalate/SnO2
nanoparticles
(CTS-PHA/SnO2)
was
developed
for
dye
wastewater
treatment
i.e.
removal
basic
red
2
(BR2)
dye.
A
study
conducted
using
response
surface
methodology
(RSM)
to
analyse
the
impact
three
factors
on
adsorption
BR2
These
were
CTS-PHA/SnO2
dosage
(0.02–0.08
g),
pH
(4–10),
and
time
(10–30
min).
The
exhibited
BET
area
9.08
m2/g.
total
pore
volume
also
determined
be
0.0240
cm3/g,
mean
diameter
measured
10.61
nm.
mostly
displays
polycrystalline
properties,
as
shown
by
its
average
crystallite
size
19.85
kinetics
isotherms
indicate
that
Freundlich
pseudo-first-order
kinetic
models
accurately
describe
CTS-PHA/SnO2.
findings
BBD
model
suggest
most
effective
conditions
achieving
high
elimination
rate
(97.28%)
9.5,
dose
0.052
g,
contact
30
minutes.
maximum
absorption
capacity
towards
computed
465.3
mg/g
at
temperature
25°C.
proposed
mechanism
onto
involves
electrostatic
interaction,
π-π,
hydrogen
bonding,
n-π
stacking
interaction.
this
material
shows
promise
highly
bioadsorbent
treatment.
Язык: Английский
Advanced Relationships Between Structure and Properties of Chitosan-Based Polymeric Hydrogels in Oncology and Their Impact on the Tumor Microenvironment
Journal of Macromolecular Science Part B,
Год журнала:
2024,
Номер
unknown, С. 1 - 22
Опубликована: Дек. 30, 2024
This
review
focuses
on
how
chitosan-based
polymeric
hydrogels
improve
cancer
research,
highlighting
their
physical
properties
and
effects
the
tumor
microenvironment
(TME).
Chitosan,
a
polymer
that
is
both
biocompatible
biodegradable,
becoming
more
popular
because
of
its
pH-responsive,
mucoadhesive
enzyme-sensitive
characteristics,
which
enable
controlled
drug
release
better
targeting
TME.
We
believe
this
thoroughly
covers
various
synthesis,
modification
crosslinking
techniques
used
to
develop
these
hydrogels,
emphasizing
role
in
enhancing
targeting,
addressing
hypoxia
improving
retention.
Important
factors
description
involve
incorporation
chitosan
into
3D
models,
delivery
systems
they
contribute
customizing
treatments
with
biomimetic
scaffolds.
The
manuscript
highlights
micromolecular
physics
influences
structure
ability
deliver
drugs
effectively
enhance
treatment
outcomes.
Furthermore,
compilation
showcases
flexibility
containing
different
types
chemotherapy
biologics
for
range
through
examining
case
studies
preclinical
research.
In
end,
clinical
translational
possibilities
are
analyzed,
issues
like
scalability,
extended
safety,
regulatory
obstacles.
conclusion
stresses
importance
research
future.
Язык: Английский