Acta chimica slovenica,
Journal Year:
2023,
Volume and Issue:
70(1), P. 122 - 130
Published: March 11, 2023
2-Hydroxybenzaldehyde
4,S-diallylisothiosemicarbazone
(HL)
was
synthesized
and
characterized
by
1H,
13C
NMR
FTIR
spectroscopies.
It
exists
in
solution
two
isomeric
forms:
cis
(~25%)
trans
(~75%).
Six
stable
complexes
were
obtained
interaction
of
HL
with
copper(II),
nickel(II),
cobalt(III)
iron(III)
salts:
[Cu(L)Cl]
(1),
[Cu(L)NO3]
(2),
[Cu(3,4-Lut)(L)NO3]
(3),
[Ni(L)OAc]
(4),
[Co(L)2]Cl
(5),
[Fe(L)2]NO3
(6).
The
have
been
studied
elemental
analysis,
FTIR,
molar
electrical
conductivity
single
crystal
X-ray
diffraction
For
all
compounds
the
antioxidant
activity
against
cation
radicals
ABTS•+
studied.
All
free
ligand
are
more
active
than
trolox
that
is
used
medicine
practice.
Complex
4
(IC50=7.20µM)
most
one.
introduction
heterocyclic
amine
did
not
improve
activity.
S-allyl
group
into
isothiosemicarbazone
affected
substances,
some
cases
resulting
exhibit
greater
isothiosemicarbazones
other
S-radicals.
Annual Review of Food Science and Technology,
Journal Year:
2023,
Volume and Issue:
14(1), P. 323 - 345
Published: Jan. 10, 2023
This
article
reviews
what
is
presently
known
about
the
biological
roles
of
diet-derived
compound
ergothioneine
(ET).
ET
seems
important
to
humans
because
it
rapidly
taken
up
from
diet
by
a
transporter
largely
or
completely
specific
for
ET,
and
once
retained
within
body
weeks
months.
The
various
possible
functions
in
vivo
are
explored.
Much
emphasis
has
been
placed
on
antioxidant
properties
but
although
these
well
established
vitro,
evidence
that
activity
principal
function
weak.
not
unique
this:
vitamin
C
polyphenols
such
as
flavonoids
also
By
contrast,
α-tocopherol
demonstrated
effects
humans.
International Journal of Biomaterials,
Journal Year:
2025,
Volume and Issue:
2025(1)
Published: Jan. 1, 2025
In
recent
years,
green
synthesis
methods
for
producing
nanomaterials
have
gained
significant
interest
due
to
their
environmentally
friendly
nature
and
wide‐ranging
applications.
The
present
study
addresses
a
novel
of
graphene
quantum
dots
(GQDs)
using
leaves
Withania
somnifera.
size,
morphology,
stability
the
green‐synthesized
GQDs
were
characterized
TEM,
UV‐Visible
spectroscopy,
Fluorescence
spectrophotometer,
XRD,
DLS.
bio‐functional
properties
investigated,
with
focus
on
antidiabetic
antioxidant
capabilities.
Their
activity
was
assessed
by
examining
ability
inhibit
α‐amylase
α‐glucosidase
enzymes,
which
play
crucial
role
in
glucose
metabolism.
Additionally,
evaluated
DPPH●
scavenging
assays,
highlighting
effectiveness
neutralizing
free
radicals.
findings
revealed
that
synthesized
outperformed
original
leaf
extract
both
enzyme
inhibition.
exhibited
higher
IC
50
values
inhibiting
DPPH
(78.508
±
5.71),
(161.909
6.188),
(133.345
7.328)
compared
GQDs,
showed
lower
72.74
5.9,
137.966
6.95,
122.084
5.478,
respectively.
indicate
somnifera
derived
hold
potential
medical
applications,
warranting
further
investigation
into
therapeutic
efficacy.
This
offers
comprehensive
analysis
fundamental
biological
addressing
dual
challenges
activity.
Antioxidants,
Journal Year:
2023,
Volume and Issue:
12(3), P. 594 - 594
Published: Feb. 27, 2023
Oral
and
maxillofacial
tissue
defects
caused
by
trauma,
tumor
reactions,
congenital
anomalies,
ischemic
diseases,
infectious
surgical
resection,
odontogenic
cysts
present
a
formidable
challenge
for
reconstruction.
Tissue
regeneration
using
functional
biomaterials
cell
therapy
strategies
has
raised
great
concerns
in
the
treatment
of
damaged
during
past
few
decades.
However,
implantation
transplantation,
production
excessive
reactive
oxygen
species
(ROS)
may
hinder
repair
as
it
commonly
causes
severe
injuries
leading
to
damage.
These
products
exist
form
oxidant
molecules
such
hydrogen
peroxide,
superoxide
ions,
hydroxyl
radicals,
nitrogen
oxide.
days,
many
scientists
have
focused
on
application
ROS-scavenging
components
body
process.
One
these
scavenging
is
antioxidants,
which
are
beneficial
materials
tissues
keeping
safe
against
free
radicals.
Antioxidants
divided
into
natural
synthetic
sources.
In
current
review
article,
different
antioxidant
sources
their
mechanism
action
discussed.
The
applications
antioxidants
oral
tissues,
including
hard
cranial,
alveolar
bone,
dental
tissue,
soft
(dental
pulp,
periodontal
tissue),
facial
nerve,
cartilage
also
highlighted
following
parts.
Polymer Testing,
Journal Year:
2022,
Volume and Issue:
117, P. 107822 - 107822
Published: Oct. 7, 2022
Antioxidant
peptides
from
natural
polymer
collagen
are
highly
desirable
and
their
ability
to
coordinate
with
minerals
will
provide
new
leads
for
the
prevention
treatment
of
oxidative
stress-related
diseases.
Here,
we
tested
changes
structures
functional
properties
bovine
bone
(BBCP)
after
magnesium
chelation.
The
Fourier
transform
infrared
(FTIR)
results
revealed
that
Mg(II)
chelated
BBCP
mainly
via
amino
nitrogen
carboxyl
oxygen
atoms.
fluorescence
circular
dichroism
(CD)
indicated
could
induce
stabilize
conformational
structures,
change
acid
distribution
on
surfaces
BBCP.
chelation
led
improvement
radical
scavenging
activities,
enhanced
intracellular
antioxidant
enzyme
activities
GSH
levels,
thus
demonstrating
higher
protective
reparative
effects
against
H2O2-induced
damage.
This
work
provides
mechanistic
insights
further
development
peptide-magnesium
chelates
stress
mitigation.
Biodiversitas Journal of Biological Diversity,
Journal Year:
2022,
Volume and Issue:
23(9)
Published: Sept. 20, 2022
Abstract.
Elfita,
Oktiansyah
R,
Mardiyanto,
Widjajanti
H,
Setiawan
A.
2022.
Antibacterial
and
antioxidant
activity
of
endophytic
fungi
isolated
from
Peronema
canescens
leaves.
Biodiversitas
23:
4783-4792.
Jack.
or
sungkai
is
a
plant
found
in
tropical
rainforests.
Also
known
as
heterophyllum
Miq.,
it
belongs
to
the
Verbenaceae
family
grows
widely
Thailand,
Malaysia,
Indonesia.
The
local
people
believe
that
antibacterial
properties
its
leaves
increase
immunity.
Bioactivities
associated
with
medicinal
plants
are
currently
great
interest
due
their
potential
for
development
use
pharmaceutical,
agricultural,
industrial
fields.
In
this
study,
we
investigated
an
extract
P.
host
compared
them
those
extracts
fungus.
compounds
derived
active
have
capability
be
developed
source
equivalent
host.
were
fresh
tissue
identified
morphologically.
Their
was
tested
using
Kirby-Bauer
method,
DPPH
method.
activities
molecularly,
column
chromatography.
A
structural
determination
conducted
by
spectroscopy
involving
NMR
1D
2D.
Twelve
gained
leaves,
namely
RD1-RD12.
RD6
isolate
showed
greatest
activity,
molecular
identification
expressed
Penicillium
oxalicum.
pure
compound
produced
yellowish
white
solid
strong
activity.
Based
on
analysis
2D,
I
3-(2,6-dihydroxyphenyl)-2-hydroxyacrylic
acid.
study
demonstrated
functioning
agents
produce
plant.
These
represent
new
antibacterials
antioxidants.
Journal of the Science of Food and Agriculture,
Journal Year:
2024,
Volume and Issue:
104(14), P. 8593 - 8603
Published: June 26, 2024
Dendrobium
officinale
flos
(DOF),
a
novel
food
raw
material,
is
used
in
Chinese
folk
medicine
to
nourish
the
stomach.
However,
there
still
no
available
study
evaluate
effects
of
DOF
on
animal
models
acute
gastric
injury
and
its
mechanism
by
modern
pharmacological
research.
