Applied Chemical Engineering,
Год журнала:
2023,
Номер
7(1)
Опубликована: Дек. 14, 2023
Al-Mg
surface
doped
silicon,
germanium
and
tin
is
theoretically
studied
using
first-principles
density
functional
theory
(DFT)
at
the
CAM-B3LYP/EPR-III,
LANL2DZ,6-31+G(d,p)
level
of
to
explore
chemical
adsorption
corrosion
inhibition
organic
carbenes
through
coating
process.
The
fluctuation
NQR
estimated
inhibiting
role
pyridine
its
derivatives
(picoline,
3-picoline,4-picoline,2,4-lutidine)
for
(Si,
Ge,
Sn)-doped
alloy
nanosheet
due
concerning
nitrogen
in
benzene
ring
related
heterocyclic
compounds
becoming
close
monolayer
nanosurface
Al-Mg-X
(X
=
Si,
Sn)
nanoalloys.
NMR
spectroscopy
remarks
that
has
maximum
band
wavelengths
approximately
between
10
ppm–2000
ppm
accompanying
sharpest
peaks
inhibitors
→
which
are
ppm–100
ppm.
IR
exhibited
with
frequency
intra-atomic
interaction
leads
us
most
influence
vicinage
atoms
generated
inter-atomic
interaction.
spectrum
complexes
[inhibitor
Sn)]
observed
range
500
cm−1–3500
cm−1.
This
work
exhibits
proper
monitoring
mechanism
by
Langmuir
can
illustrate
aluminum
nanoalloys
an
investigation
their
structural
thermodynamic
properties.
investigates
characteristics,
structure,
projected
state
(PDOS)
nanoalloy
Sn
elements
increasing
molecules
coatings
article
be
helpful
a
applications
uses
study
energy
storage
air
pollution
or
water
contamination.
Many
different
approaches
such
as
coatings,
alloying
doping
adopted
protect
surface.
Scientific Reports,
Год журнала:
2023,
Номер
13(1)
Опубликована: Июнь 28, 2023
Owing
to
the
fact
that
use
of
2,2-dichlorovinyldimethylphosphate
(DDVP)
as
an
agrochemical
has
become
a
matter
concern
due
its
persistence
and
potential
harm
environment
human
health.
Detecting
addressing
DDVP
contamination
is
crucial
protect
health
mitigate
ecological
impacts.
Hence,
this
study
focuses
on
harnessing
properties
fullerene
(C60)
carbon
materials,
known
for
their
biological
activities
high
importance,
develop
efficient
sensor
DDVP.
Additionally,
sensor's
performance
enhanced
by
doping
it
with
gallium
(Ga)
indium
(In)
metals
investigate
sensing
trapping
capabilities
molecules.
The
detection
carefully
examined
using
first-principles
density
functional
theory
(DFT)
at
Def2svp/B3LYP-GD3(BJ)
level
theory,
specifically
analyzing
adsorption
chlorine
(Cl)
oxygen
(O)
sites.
energies
Cl
site
were
determined
-
57.894
kJ/mol,
78.107
99.901
kJ/mol
Cl_DDVP@C60,
Cl_DDVP@Ga@C60,
Cl_DDVP@In@C60
interactions,
respectively.
At
O
site,
found
be
54.400
114.060
114.056
O_DDVP@C60,
O_DDVP@Ga@C60,
O_DDVP@In@C60,
energy
analysis
highlights
chemisorption
strength
between
surfaces
molecule
sites
adsorption,
indicating
exhibits
higher
energy,
which
more
favorable
according
thermodynamics
analysis.
Thermodynamic
parameters
(∆H
∆G)
obtained
from
suggest
considerable
stability
indicate
spontaneous
reaction
in
order
O_DDVP@Ga@C60
>
O_DDVP@In@C60
O_DDVP@C60.
These
findings
demonstrate
metal-decorated
adsorbed
biomolecule
offer
sensitivity
detecting
organophosphate
Chemical Physics Impact,
Год журнала:
2024,
Номер
8, С. 100510 - 100510
Опубликована: Фев. 5, 2024
The
intrinsic
structural
characteristics
of
covalent
organic
frameworks
(COFs)
significantly
influence
their
adsorption
capabilities,
particularly
in
the
context
glyphosate.
In
this
study,
diverse
COFs,
incorporating
distinctive
functional
groups
(-COOH,
-NH2,
-NO2,
and
-CF3),
were
strategically
designed
to
showcase
effectiveness
functionalized
COFs
adsorbing
glyphosate
utilizing
density
theory
(DFT)
at
M06-2X/Gen/6-311G(d)/LanL2DZ
method.
non-covalent
nature
interactions
seen
systems
was
through
a
visual
such
as
QTAIM
NCI
analyses.
phenomena
results
chemisorption,
with
GCS@COF-NH2
(CN1)
complex
possessing
highest
negative
energy
-1.313
eV.
Also,
relatively
higher
values
observed
GCS@COF-CF3
(CC1)
(-1.305
eV),
GCS@COF-COOH
(CC2)
(-1.239
GCS@COF-NO2
(CN2)
(-1.147
eV)
complexes.
surfaces
are
stabilized
due
increment
Eg
upon
adsorption,
CN2
CN1
complexes
least
gap
values,
indicating
lower
stability
electrical
conductivity,
electron
distribution,
sensitivity.
Hence,
COF-NH2
surface
has
potential
be
used
an
adsorbent
material
for
pollutants,
then
followed
by
COF-NO2
surface.
Chemical Physics Impact,
Год журнала:
2023,
Номер
7, С. 100349 - 100349
Опубликована: Окт. 18, 2023
Due
to
their
ubiquity
and
the
rise
of
drug-resistant
forms,
Candida
albicans
infections
pose
a
serious
threat
world
health.
Exploring
new
molecular
possibilities
is
essential
in
order
create
newer
antifungal
medicines
address
this
challenge.
Herein,
use
density
functional
theory
at
B3LYP-D3BJ/aug-cc-pVDZ
method
along
with
silico
docking
was
utilized
examine
effects
polar
(DMSO,
ethanol,
water)
solvation
on
reactivity,
spectral
(NMR,
UV,
FT-IR)
investigation,
potential
bis[ethyl2-(4-hydroxy-3-{(E)-[(1,3-benzothiazol-2-yl)inimo]methyl}
phenyl)-4-methyl-1,3-thiazole-5-carbo
-xylate
(BTZ).
The
study
finds
that
solvents
exert
notable
influence
BTZ's
highest
energy
gap
observed
gas
phase
value
3.4939
eV
while
solvents;
values
are
3.4477,
3.4422
for
DMSO,
water,
respectively.
This
observation
implies
BTZ
may
exhibit
varying
degrees
reactivity
under
different
solvents.
To
evaluate
suitability
as
agent,
absorption,
distribution,
metabolism,
excretion,
toxicity
(ADMET)
studies
were
conducted
which
reveals
adheres
Lipinski's
rule
five,
demonstrating
its
drug-like
potential.
Molecular
simulations
against
proteins
(1ZAP
6ZDU)
show
promising
binding
affinities,
exhibiting
strong
interaction
1ZAP
(-5.4
kcal/mol).
findings
research
contribute
valuable
insights
into
activity
BTZ,
providing
candidate
further
exploration
quest
effective
treatments
infections.
Chemical Physics Impact,
Год журнала:
2023,
Номер
8, С. 100438 - 100438
Опубликована: Дек. 21, 2023
This
study
is
aimed
at
evaluating
the
impact
of
solvation
on
structural,
spectroscopy
(UV,
NMR,
FT-IR),
reactivity,
bonding
interactions,
and
drug
potential
Pyridine
4-Carbaldehyde
Semi-carbazone
(PCS)
against
disease
(cholera)
causing
protein
in
Gram-negative
bacterium;
Vibrio
cholerae.
Notably,
was
carried
out
using
both
experimental
theoretical
calculations
based
density
functional
theory
(DFT)
GD3B/B3LYP/6-311G++(2D,2P)
level
along
with
molecular
docking.
Results
from
UV-
spectrum
showed
very
fair
absorption
levels
across
different
solvents
used,
peaks
463nm,
467nm,
470nm
468nm
for
PCS_DMSO,
PCS_ETOH,
PCS_H2O
PCS_MEOH
respectively.
The
reveals
discrepancies
between
1H
NMR
shifts.
However,
13C
shifts
show
minute
differences.
RDG
analysis
steric
repulsions
pyridine
ring.
Whereas,
investigation
electronic
properties
reveal
that
decreasing
order
PCS_DMSO
(3.668eV)
>
(3.206eV)
(3.202eV)
PCS_ETOH
(0.312eV).
results
docking
PCS
had
binding
affinities
-5.0
Kcal/mol
7P3R
-5.4
1XTC
which
happen
to
be
much
lesser
than
-10.2
formed
erythromycin
7P3R.
a
non-feasible
interactions
biding
affinity
18.0
Kcal/mol.
MD
simulation
PCS-MEOH
higher
energy
value
PCS-DMSO,
PCS-ETOH,
PCS-H2,
indicating
it
can
interact
other
substances
more
effectively,
disperse
quickly.
These
various
studied
objectives,
however,
suggest
lead
compound
tackling
incidence,
distribution
prevalence
cholera.