The
capacity
of
South
African
Heulandite
(HEU)
zeolite
to
remove
Pb2+
and
Cd2+
ions
from
aqueous
solution
was
investigated
using
batch
experiments
molecular
simulations
studies.
effect
different
factors
on
the
adsorption
these
onto
investigated;
contact
time,
initial
metal
ion
concentration
amount
HEU
adsorbent.
Molecular
done
Monte
Carlo
density
functional
theory.
Experimental
results
obtained
indicate
that
maximum
for
two
occur
at
pH
5
after
240
minutes
time.
percent
removal
water
by
were
49.9%
29.2%,
respectively
which
agrees
with
simulation
43.4%
26.2%.
follows
Langmuir
isotherm.
From
findings,
window
is
equidistant
adjacent
oxygen
atoms
within
structure
while
adsorbed
in
upper
left
side
8-ring
window.
It
observed
performance
can
significantly
be
improved
doping
germanium,
aluminum,
thallium
indium,
sodium
cations.
These
application
as
an
adsorbent
holds
a
great
promise
heavy
solutions.
Scientific Reports,
Год журнала:
2022,
Номер
12(1)
Опубликована: Сен. 16, 2022
The
utilization
of
nanostructured
materials
as
efficient
catalyst
for
several
processes
has
increased
tremendously,
and
carbon-based
encompassing
fullerene
its
derivatives
have
been
observed
to
possess
enhanced
catalytic
activity
when
engineered
with
doping
or
decorated
metals,
thus
making
them
one
the
most
promising
nanocage
hydrogen
evolution
reaction
(HER)
during
electro-catalysis.
Prompted
by
these,
reported
electrochemical,
electronic
stability
advantage,
an
attempt
is
put
forward
herein
inspect
metal
encapsulated,
doped,
dependent
HER
C24
effective
electro-catalyst
HER.
Density
functional
theory
(DFT)
calculations
utilized
evaluate
four
proposed
bare
systems:
(C24),
calcium
encapsulated
(CaencC24),
nickel-doped
(NidopCaencC24),
silver
(AgdecNidopCaencC24)
at
TPSSh/GenECP/6-311+G(d,p)/LanL2DZ
level
theory.
obtained
results
divulged
that,
a
potential
decrease
in
energy
gap
(Egap)
occurred
systems,
while
sparing
increase
was
upon
adsorption
onto
surfaces,
these
surfaces
where
also
maintain
least
EH–L
AgdecNidopCaencC24
surface
exhibited
electrocatalytic
compared
others.
showed
that
properties
systems
evinced
correspondent
result
their
electrochemical
properties,
Ag-decorated
proficient
$$({E}_{ads}^{H})$$
Gibb's
free
(ΔGH)
value.
Ni-doped
were
found
both
good
excellent
electro-catalytic
property
activities.
Processes,
Год журнала:
2022,
Номер
10(7), С. 1391 - 1391
Опубликована: Июль 17, 2022
Corresponding
to
the
reported
features
of
anti-VEGFR-2-approved
compounds,
a
new
1H-indole
derivative
(compound
7)
was
designed.
The
inhibitory
potential
designed
compound
revealed
via
molecular
docking
study
that
showed
appropriate
binding.
Then,
MD
simulation
(six
studies)
over
period
100
ns
performed
confirm
precise
binding
and
optimum
energy.
Additionally,
MM-GBSA
reaffirmed
perfect
binding,
exhibiting
total
energy
−40.38
Kcal/Mol.
experiments
named
essential
amino
acids
in
protein–ligand
interaction,
employing
decomposition
revealing
diversity
interactions
7
inside
VEGFR-2
enzyme.
As
is
new,
DFT
were
utilized
for
structure
optimization.
results
validated
coherent
interaction
with
A
good
value
drug-likeness
acknowledged
silico
ADMET
studies.
Interestingly,
experimental
vitro
prohibitory
better
than
sorafenib,
demonstrating
an
IC50
25
nM.
Notably,
strong
effects
10
against
two
cancer
cell
lines
(MCF-7
HCT
116)
established
values
12.93
11.52
μM,
disclosing
high
selectivity
indexes
6.7
7.5,
respectively.
The Journal of Physical Chemistry B,
Год журнала:
2022,
Номер
126(27), С. 5066 - 5080
Опубликована: Июль 5, 2022
This
theoretical
study
focuses
on
the
adsorption,
reactivity,
topological
analysis,
and
sensing
behavior
of
metal-doped
(K,
Na,
Mg)
aluminum
nitride
(Al12N12)
nanoclusters
using
first-principle
density
functional
theory
(DFT).
All
quantum
chemical
natural
bond
orbital
(NBO),
free
energies
(ΔG,
ΔH),
sensor
parameters
were
investigated
ωB97XD
with
6-311++G(d,p)
basis
set.
The
trapping
carboplatin
(cbp)
onto
surfaces
doped
Al12N12
was
studied
four
functionals
PBE0-D3,
M062X-D3,
ωB97XD,
B3LYP-D3
at
Overall,
substantial
change
in
energy
gap
after
adsorption
process
affects
work
function,
field
emission,
electrical
conductivity
clusters,
hence
making
a
better
material
for
detecting
carboplatin.
Higher
solvation
obtained
polar
solvents
compared
to
nonpolar
solvents.
Moreover,
negative
obtained,
which
therefore
shows
that
engineered
are
highly
efficient
relatively
strong
show
mechanism
is
by
chemisorption,
K-
Na-doped
metal
clusters
acted
as
sensors
Also,
analysis
comparison
previous
studies
exhibited
very
high
stability
regard
their
relevant
binding
hydrogen
interactions.
Chemical Physics Impact,
Год журнала:
2023,
Номер
7, С. 100296 - 100296
Опубликована: Авг. 30, 2023
The
profound
impact
of
health
challenges
related
to
libido,
encompassing
sexual
dysfunction,
hormonal
imbalances,
relationship
difficulties,
stress,
anxiety,
depression,
and
the
effects
certain
medical
conditions
or
medications,
calls
for
urgent
mitigative
measures.
As
a
result,
this
study
meticulously
explores
compound
Resveratrol
(Res)
uncover
its
substantial
properties
concerning
libido
enhancement.
was
optimized
using
DFT/ωB97XD/6-311G++(d,
p)
basis
set
in
different
solvents,
namely
DMSO
(dimethyl
sulfoxide),
ethanol,
water.
Notably,
geometry
investigation
reveals
that
structural
bond
variations
can
be
attributed
factors
such
as
solvent
polarity,
screening
effects,
hydrogen
bonding,
solvation
energy,
conformational
preferences.
Substantially,
Frontier
Molecular
Orbital
(FMO)
analysis
explored
HOMO
values
resulting
7.59198eV,
7.5514eV,
7.59687eV
RES_DMSO,
RES_EtOH,
RES_H2O,
respectively.
Correspondingly,
their
LUMO
were
found
7.5955eV,
7.5648eV,
7.5982eV,
leading
respective
band
gaps
0.0035eV,
0.0133eV,
0.0014eV.
Remarkably,
RES_H2O
displayed
smallest
energy
gap
(0.0014eV)
among
interacting
compounds,
indicating
increased
conductivity
sensitivity.
Furthermore,
natural
orbital
revealed
had
highest
permutation
three
complexes
(376.5
kcal/mol
371.79
378.77
RES_H2O),
stronger
interaction
between
donor
acceptor
orbitals.
Finally,
molecular
docking
studies
unveiled
notable
difference
binding
affinity,
with
RES
exhibiting
greater
affinity
1UDT
at
-8.1
compared
1UDU,
which
demonstrated
-6.6
kcal/mol.
Thus,
has
potential
reverse
erectile
dysfunction
improve
by
inhibiting
activities
phosphodiesterase
(1UDT
1UDU),
ultimately
promoting
vasodilatory
signals
from
cGMP
smooth
muscles
penis,
enhanced
erection.
These
groundbreaking
findings
offer
promising
prospects
development
new
effective
drugs
combat
various
conditions.
Phytotherapy Research,
Год журнала:
2024,
Номер
38(3), С. 1400 - 1461
Опубликована: Янв. 17, 2024
Abstract
Neuropsychiatric
disorders
are
anticipated
to
be
a
leading
health
concern
in
the
near
future,
emphasizing
an
outstanding
need
for
development
of
new
effective
therapeutics
treat
them.
Stilbenes,
with
resveratrol
attracting
most
attention,
example
multi‐target
compounds
promising
therapeutic
potential
broad
array
neuropsychiatric
and
neurological
conditions.
This
review
is
comprehensive
summary
current
state
research
on
stilbenes
several
such
as
depression,
anxiety,
schizophrenia,
autism
spectrum
disorders,
epilepsy,
traumatic
brain
injury,
neurodegenerative
disorders.
We
describe
discuss
results
both
vitro
vivo
studies.
The
majority
studies
concentrate
resveratrol,
limited
findings
exploring
other
pterostilbene,
piceatannol,
polydatin,
tetrahydroxystilbene
glucoside,
or
synthetic
derivatives.
Overall,
although
extensive
preclinical
show
benefits
various
central
nervous
system
clinical
evidence
their
efficacy
largely
missing.
Chemical Physics Impact,
Год журнала:
2024,
Номер
8, С. 100495 - 100495
Опубликована: Янв. 26, 2024
The
current
study
focuses
on
the
combined
experimental
and
theoretical
FT-IR
FT-Raman
spectra
of
1-carboxy-4-ethoxybenzene
(1C4EB),
to
obtain
vibrational
frequencies
optimal
geometrical
parameters
by
HF
DFT.
For
1C4EB,
kind
intramolecular
interactions
their
stabilization
were
performed
Natural
Bond
Orbital
analysis.
Nonlinear
optical
p
properties
conclusive
evidence
for
ICT
also
analyzed.
electronic
energies
absorption
in
different
mediums
determined.
Furthermore,
Mulliken
charges
distribution,
molecular
electrostatic
potential
maps,
condensed
Fukui
function
thermodynamic
calculated.
topological
IRI
analyzed
with
Multiwfn
program.
In
docking,
target
proteins
4ULE
2EEP
used
investigate
sugar
phosphatase
Prolyl
aminopeptidase
inhibitor
properties.
least
binding
energy
-6.7
kcal/mol
is
observed
selected
protein
4ULE.
dynamics
complex
between
–
ligand,
free
calculated
Poisson-Boltzmann
surface
area
method.