The
pharmacological
approach
to
treating
gastrointestinal
diseases
is
suffering
from
various
challenges.
Among
such
diseases,
ulcerative
colitis
manifests
inflammation
at
the
colon
site
specifically.
Patients
notably
exhibit
thin
mucus
layers
that
offer
increased
permeability
for
attacking
pathogens.
In
majority
of
patients,
conventional
treatment
options
fail
in
controlling
symptoms
disease
leading
distressing
effects
on
quality
life.
Such
a
scenario
due
failure
therapies
target
loaded
moiety
into
specific
diseased
sites
colon.
Targeted
carriers
are
needed
address
this
issue
and
enhance
drug
effects.
Conventional
nanocarriers
mostly
readily
cleared
have
nonspecific
targeting.
To
accumulate
desired
concentration
therapeutic
candidates
inflamed
area
colon,
smart
nanomaterials
with
responsive
nature
been
explored
recently
include
pH
responsive,
reactive
oxygen
species
(ROS),
enzyme
thermo
-
nanocarrier
systems.
formulation
nanotechnology
scaffolds
has
resulted
selective
release
drugs,
avoiding
systemic
absorption
limiting
undesired
delivery
targeting
drugs
healthy
tissues.
Recent
advancements
field
systems
fabrication
multi-responsive
i.e.
dual
derivitization
biological
tissues
nanocarrier's
interaction.
addition,
it
also
led
efficient
significant
cellular
uptake
moieties.
Herein,
we
highlighted
latest
status
system,
its
applications
on-demand
colitis,
prospects
underpinned.
Recently,
hydrogels
have
been
investigated
for
the
controlled
release
of
bioactive
molecules,
such
as
living
cell
encapsulation
and
matrices.
Due
to
their
remote
controllability
quick
response,
are
widely
used
various
applications,
including
drug
delivery.
The
rate
extent
which
drugs
reach
targets
highly
dependent
on
carriers
in
delivery
systems;
therefore
demand
biodegradable
intelligent
is
progressively
increasing.
nature
hydrogel
has
created
much
interest
its
use
systems.
first
part
this
review
focuses
emerging
fabrication
strategies
hydrogel,
physical
chemical
cross-linking,
well
radiation
cross-linking.
second
describes
applications
fields,
In
end,
an
overview
application
prepared
from
several
natural
polymers
presented.
Materials & Design,
Год журнала:
2022,
Номер
221, С. 110894 - 110894
Опубликована: Июль 2, 2022
Although
nano-systems
can
promote
the
cellular
internalization,
polymeric
nanoparticles
(NPs)
are
easily
to
be
destroyed
or
eliminated
in
gastrointestinal
tract,
which
leads
premature
drug
release
insufficient
colonic
accumulation.
A
novel
oral
nano-in-micro
system
for
efficient
delivery
of
curcumin
(Cur)
was
developed
this
study,
hyaluronic
acid
(HA)/zein
complex
NPs
loading
Cur
were
embedded
alginate/chitosan
hydrogel
microparticles
(Cur@NMPs)
with
electrospray
technology.
The
Cur@NMPs
showed
uniform-sized
sphere
an
average
size
218.36
±
10
μm,
encapsulating
Cur@HA/zein
148.64
3.21
nm.
NMPs
sustained
drug-release
profiles
simulated
gastric
fluid,
whereas
it
rapid
fluid.
Mediated
by
HA-CD44
receptor
recognition,
had
increased
uptake
efficiency
macrophages.
Furthermore,
significant
colon-retention
and
bio-adhesiveness
capacity
colon
tissues.
As
expected,
administration
significantly
mitigated
colitis
symptoms
DSS-induced
UC
mice
inhibiting
TLR4/NF-κB
pathway.
above
results
provide
a
useful
strategy
treatment
retaining
advantages
nano-
micro-scaled
carriers.
Materials & Design,
Год журнала:
2022,
Номер
220, С. 110850 - 110850
Опубликована: Июнь 15, 2022
Micro/nanoparticles-based
drug
delivery
system
has
emerged
significantly
and
influenced
the
pharma
industry
up
to
considerable
extent.
At
same
time,
development
of
production
methods
that
are
cost
effective,
scalable
reproducible
becomes
crucial
ensure
clinical
translation
any
development.
The
application
electrospray
(ES)
technology
in
micro-nano
not
only
above
advantages,
but
also
can
quickly
obtain
uniform
stable
micro/nanoparticles
as
carriers
through
its
own
characteristics.
Natural
or
synthetic
polymers
often
used
raw
materials
for
these
micro/nanoparticles.
prepared
by
change
solubility
bioavailability
drugs
reduce
toxicity
caused
mass
accumulation
after
sudden
release.
And
reaching
target
site,
they're
easy
degrade
will
accumulate
body.
In
this
review,
taken
together,
we
briefly
describe
principle
advantages
ES,
well
common
preparation
method.
types
electrosprayed
their
systems
different
routes
diseases
were
discussed.
prospects
made
future
field
medicine.
Journal of Nanobiotechnology,
Год журнала:
2023,
Номер
21(1)
Опубликована: Авг. 18, 2023
Due
to
oral
nano-delivery
systems
for
the
treatment
of
inflammatory
bowel
disease
(IBD)
are
often
failed
accumulated
colonic
site
and
could
not
achieve
controlled
drug
release,
it's
urgent
develop
a
microenvironment
responsive
delivery
improve
therapy
efficacy.
Inflammation
at
IBD
is
mainly
mediated
by
macrophages,
which
key
effector
cells.
Excessive
inflammation
leads
oxidative
stress
intestinal
mucosal
damage.
The
use
curcumin
(CUR)
emodin
(EMO)
together
promising
due
their
respective
anti-inflammatory
repair
effects.
In
view
pH
gradient
environment
gastrointestinal
tract,
here
we
prepared
pH-responsive
sodium
alginate
(SA)
hydrogel-coated
nanoemulsions
co-deliver
CUR
EMO
(CUR/EMO
NE@SA)
release
specifically
target
macrophages
colon.In
this
study,
CUR/EMO
NE@SA
was
successfully
developed,
in
NE
loaded
chitosan
further
crosslinked
with
alginate.
had
property
colon.
preparation
significantly
alleviate
colon
decreasing
TNF-α
IL-6
expression,
increasing
IL-10
scavenging
reactive
oxygen
species
ameliorating
restoration
tight
junction
protein
expression.
Furthermore,
revealed
molecular
mechanism
treatment,
might
synergic
inhibition
NF-κB
pro-inflammatory
microenvironment.
Our
study
provides
new
strategy
via
synergically
inhibiting
inflammatory,
repairing
clearing
ROS
pH-sensitive
hydrogel-encapsulated
nanoemulsion
system,
be
developed
other
chronic
treatment.It's
suggested
that
nanoemulsion-based
codelivery
combinatorial
platform
IBD.