Revista Bio Ciencias,
Journal Year:
2023,
Volume and Issue:
10
Published: Feb. 21, 2023
Triclosan
(TCS)
is
used
in
many
health
care
products
as
a
broad-spectrum
antimicrobial
and
disinfectant
agent;
however,
it
currently
considered
an
emerging
pollutant.
The
present
study
aimed
to
develop
analytical
HPLC
method
coupled
Diode
Array
Detector
for
the
TCS
determination
toothpaste.
Method
development
involved
optimization
of
separation
sample
preparation.
For
chromatographic
optimization,
different
RP
columns
aqueous
mobile
phases
were
addressed.
optimized
was
achieved
around
3
minutes
using
Symmetry
C18
column
at
30
°C,
0.6
mL/min
flow-rate,
225
nm
wavelength
detection.
toothpaste
preparation
response
surface
methodology
Box-Behnken
fractional
factorial
design
chosen.
treatment
consisted
leaching
0.2
g
by
sonication
7
2
mL
MeOH.
According
International
Conference
on
Harmonization
(ICH,
1996/2005)
European
Commission
Decision
200/657/EC
guidelines,
developed
validated.
found
fast,
economic,
linear,
sensitive,
precise,
robust
allowed
quantify
healthcare
products.
Pharmaceutics,
Journal Year:
2024,
Volume and Issue:
16(11), P. 1361 - 1361
Published: Oct. 24, 2024
Research
on
cyclodextrin-based
metal-organic
frameworks
(CD-MOFs)
is
still
in
its
infancy,
but
their
potential
for
use
drug
delivery-expressly
the
lung-seems
promising.
We
aimed
to
freeze-drying
method
create
a
novel
approach
preparing
CD-MOFs.
MOFs
consisting
of
γ-cyclodextrin
(γCD)
and
potassium
cations
(K
Separation Science Plus,
Journal Year:
2024,
Volume and Issue:
7(10)
Published: Aug. 6, 2024
ABSTRACT
An
innovative,
simple,
economical,
and
sensitive
reversed
phase–high
performance
liquid
chromatography
(RP–HPLC)
chromatographic
method
for
simultaneous
analysis
of
erythromycin
(ERY)
adapalene
(ADP)
in
bulk
pharmaceutical
nanoformulation
was
developed
by
analytical
quality‐by‐design
(AQbD)
avenue.
According
to
published
research,
there
is
no
strategy
that
integrates
RP–HPLC
with
AQbD
estimating
ERY
ADP.
The
carried
out
Box–Behnken
design,
which
reduced
trial
runs
design
points.
Acetonitrile:
orthophosphoric
acid
(OPA)
(0.1%
triethanolamine)
pH
6.2
water
used
as
the
mobile
phase.
ratio
set
35:65
(v/v)
at
0.8
mL/min
flow
rate
detect
analytes
231
nm.
As
per
guidelines
International
Conference
on
Harmonization
Q1A
(R2),
approach
validated.
ADP
regression
coefficients
(
r
2
)
were
found
be
0.9998
0.9999,
respectively,
over
5–25
µg/mL
range.
Validation
parameters
comprising
linearity,
sensitivity,
system
suitability,
precision,
robustness,
accuracy
performed.
To
assess
stability,
drugs
subjected
stress
conditions
(hydrolytic,
oxidative,
thermal,
photolytic),
most
vulnerable
degrade
alkaline
oxidative
conditions.
A
new
technique
successfully
analyzed
novel
drug
carriers
loaded
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Sept. 16, 2024
Arsenic
contamination
in
aqueous
media
is
a
serious
environmental
problem,
especially
developing
countries.
In
this
research,
the
Box-Behnken
response
surface
methodology
was
used
to
optimize
most
relevant
variables
affecting
arsenic
adsorption
on
ZnO-halloysite
surface,
including
temperature,
adsorbent
dosage,
pH,
contact
time,
and
As
(III)
initial
concentration.
The
regression
analysis
indicated
that
experimental
data
were
appropriately
fitted
quadratic
model
with
adjusted
R-squared
value
(R
ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(42)
Published: Nov. 1, 2024
Abstract
Morbidities
associated
with
natural
bone
have
highlighted
the
need
of
advanced
bioactive
implants
for
replacement
damaged
bone.
Known
their
beneficial
bioactivity
and
biocompatibility,
Nigella
sativa
seeds
(
kalonji
/black
seed)
are
traditionally
used
in
many
medications.
This
research
focuses
on
positive
impact
black
seed
extract
chondroitin
sulfate‐based
hydroxyapatite
nanocomposite
tissue
regeneration
applications.
Novel
nanocomposites
varied
concentrations
(0,
1,
2,
3
wt%)
were
fabricated
through
a
coprecipitation
approach
analyzed
physicochemical
biological
The
results
X‐ray
diffraction
FTIR
spectroscopy
revealed
that
HCSK3
was
successfully
developed
appreciably
strong
molecular
interactions
among
components.
exhibits
higher
rough
surface
morphology
R
−1.13
µm
z
−4.8
µm),
uniform
particle
distribution
(average
size
−9.9
nm),
good
thermal
stability
total
weight
loss
13%.
It
also
provides
better
nucleation
sites
apatite
formation
protein
adsorption
stimulating
cell
attachment,
proliferation,
differentiation.
Moreover,
showed
excellent
viability,
ARS/ALP
activities,
antibacterial
property,
nonhemolytic
property
(below
3%).
Thus,
it
can
be
concluded
manifested
highest
biocompatibility
negligible
toxicity.
Therefore,
employed
as
an
ideal
implant
restoration
phenomenon.
Malaysian Journal of Science and Advanced Technology,
Journal Year:
2024,
Volume and Issue:
unknown, P. 440 - 447
Published: Sept. 29, 2024
Based
on
the
Indonesian
Ministry
of
Health
Regulation
No.7
in
2012,
herbal
medicine
is
disallowed
to
contain
synthetic
chemicals
or
isolated
products
with
medicinal
properties.
However,
from
findings
BPOM,
there
are
still
many
producers
who
add
medicine,
one
which
addition
paracetamol
jamu
pegal
linu.
This
study
aimed
obtain
optimum
HPLC
conditions
for
analysis
linu
using
Response
Surface
Methodology-Box-Behnken
Design,
ensure
method
has
met
validation
parameters,
and
determine
presence
levels
contained
sold
Pasar
Besar,
Malang
City.
that
were
optimized
percentage
methanol
mobile
phase
water,
flow
rate,
column
temperature.
The
condition
optimization
results
obtained
at
a
water
34.4%,
rate
1
mL/min,
temperature
30°C.
Analysis
content
test
parameters
including
selectivity
(λmax
245
nm;
retention
time
±
2.6
minutes;
resolution
2.5),
linearity
(r2
=
0.9984),
LOD
(2.44
ppm),
LOQ
(7.40
accuracy
(97-102%),
precision
(0.26-0.69%).
three
samples
analyzed
showed
negative
fulfilled
regulation
2012.
Revista Bio Ciencias,
Journal Year:
2023,
Volume and Issue:
10
Published: Feb. 21, 2023
Triclosan
(TCS)
is
used
in
many
health
care
products
as
a
broad-spectrum
antimicrobial
and
disinfectant
agent;
however,
it
currently
considered
an
emerging
pollutant.
The
present
study
aimed
to
develop
analytical
HPLC
method
coupled
Diode
Array
Detector
for
the
TCS
determination
toothpaste.
Method
development
involved
optimization
of
separation
sample
preparation.
For
chromatographic
optimization,
different
RP
columns
aqueous
mobile
phases
were
addressed.
optimized
was
achieved
around
3
minutes
using
Symmetry
C18
column
at
30
°C,
0.6
mL/min
flow-rate,
225
nm
wavelength
detection.
toothpaste
preparation
response
surface
methodology
Box-Behnken
fractional
factorial
design
chosen.
treatment
consisted
leaching
0.2
g
by
sonication
7
2
mL
MeOH.
According
International
Conference
on
Harmonization
(ICH,
1996/2005)
European
Commission
Decision
200/657/EC
guidelines,
developed
validated.
found
fast,
economic,
linear,
sensitive,
precise,
robust
allowed
quantify
healthcare
products.