ACS Omega,
Год журнала:
2024,
Номер
9(49), С. 48044 - 48054
Опубликована: Ноя. 25, 2024
Ethidium
bromide
(Et-Br)
is
a
widely
used
fluorescent
dye
in
molecular
biology
and
biotechnology
laboratories
for
visualizing
nucleic
acids
agarose
gel
electrophoresis.
However,
concerns
have
been
raised
about
its
environmental
impact
potential
health
risks
due
to
persistence
toxicity.
The
accumulation
long-term
effects
on
the
environment
necessitate
removal
of
Et-Br
from
water.
This
study
investigates
novel
cold
plasma
technology
degradation
Et-Br.
Cold
atmospheric
(CAP)
an
environmentally
friendly
that
does
not
produce
secondary
pollutants
generates
variety
potent
chemical
reactive
oxidants
such
as
hydroxyl
radicals
(
Green Chemistry Letters and Reviews,
Год журнала:
2024,
Номер
17(1)
Опубликована: Авг. 14, 2024
This
study
builds
upon
our
experience
with
electrocatalyzed
dearomatization
of
lignin
in
aqueous
systems,
which
has
shown
to
produce
sodium
levulinate,
4-hydroxyvalerate,
acetate,
and
formate
as
major
products.
Here,
we
extend
this
investigation
by
exploring
a
water/γ-valerolactone
(GVL)
solvent
system
for
electrochemical
depolymerization
lignin,
using
Na2CO3
electrolyte.
GVL,
derived
from
biomass,
frequently
been
employed
biomass
treatment,
notably
the
Organosolv
process.
Consequently,
various
biorefinery
strategies
have
emerged
utilizing
GVL
green
platform,
primarily
its
potential
delignifying
lignocellulosic
when
combined
water
dilute
acid.
proposes
step
toward
concept
bioelectrorefinery,
aiming
convert
into
aliphatic
organic
chemicals.
Consistent
prior
work
applying
current
−100
mA
over
8
h
yielded
formate.
Confirmation
was
provided
liquid
chromatography
electrospray
ionization
high-resolution
mass
spectrometry,
nuclear
magnetic
resonance,
infrared
spectroscopy.
These
findings
advance
understanding
biomass-based
highlighting
not
only
treatment
but
also
medium
converting
valuable
Lignin,
a
major
component
of
plant
biomass,
is
promising
sustainable
alternative
carbon-based
feedstock
to
petroleum
as
source
valuable
aromatic
compounds
such
vanillin.
However,
lignin
upgrading
reactions
are
poorly
understood
due
its
complex
and
variable
molecular
structure.
This
work
focuses
on
electrocatalytic
upgrading,
which
efficient
at
moderate
temperatures
pressures
does
not
require
stoichiometric
reagents.
We
used
meta-analysis
published
conversion
product
yield
data
define
the
operating
range,
select
catalyst,
then
performed
experiments.
quantified
impact
temperature
electrical
potential
formation
rate
products
(vanillic
acid,
acetovanillone,
guaiacol,
vanillin,
syringaldehyde).
found
that
increasing
increases
their
by
an
order
magnitude
more
than
potential.
For
example,
from
21
180
°C
vanillin
+16.5
mg⋅L
Encyclopedia of Inorganic and Bioinorganic Chemistry,
Год журнала:
2023,
Номер
unknown, С. 1 - 19
Опубликована: Сен. 29, 2023
Abstract
Lignocellulosic
biomass
is
the
world
largest
renewable
resource
used
as
a
raw
material
to
produce
high‐value‐added
chemicals,
such
biofuels
and
other
biomaterials.
However,
complex
chemical
structures
of
its
main
constituents,
named
cellulose,
hemicelluloses,
lignin,
pose
challenge
breakdown
these
biopolymers
into
smaller
units.
In
this
scenario,
sustainable
methods
for
depolymerization
lignocellulosic
aim
chemically
break
macromolecules
simple
monomers
dimers,
while
minimizing
use
hazardous
chemicals
energy‐intensive
processes.
Different
strategies
have
been
proposed,
including
enzymatic,
electrochemical,
acid‐catalyzed,
solvent‐based
methods.
Nevertheless,
development
improvement
approaches
toward
technologies
still
ongoing,
there
room
further
research
optimize
efficiency,
cost‐effectiveness,
scalability
While
successful
may
significantly
contribute
transition
more
environmentally
friendly
economy,
article
outlines
most
recent
developments
focusing
on
particularities
processes,
biological,
thermal,
Green Chemistry,
Год журнала:
2024,
Номер
26(13), С. 7443 - 7455
Опубликована: Янв. 1, 2024
The
CTC-Conference
at
Ringberg
brought
scientists
together
to
discuss
their
research
and
brainstorm
a
"moon-shot"
program
align
efforts,
enable
rapid
discoveries,
move
towards
sustainable
circular
economy.
Abstract
The
electrification
of
the
production
fine
chemicals
has
received
increased
interest
in
combating
petrochemical
routes
with
a
high
carbon
footprint.
Oxidising
biomass
from
waste
streams
concomitant
hydrogen
production,
such
as
transformation
lignin
to
vanillin,
would
be
great
asset.
Here,
we
show
combination
activity
screening
using
scanning
droplet
cell
on
thin‐film
Ni−Fe
library
and
performance
testing
flow‐through
pulse
electrolysis.
identified
optimal
material
composition
was
prepared
Ni
foam
polymer/metal
precursor
spray
method.
Full
factorial
Doehlert
matrix
designs
were
employed
better
comprehend
each
parameter‘s
effects
complex
system.
best
conditions
for
electrooxidation
Kraft
at
room
temperature
E
1st
=1.36
V
vs
RHE,
t
=1
s
first
2nd
=1.60
RHE
=15
second
pulse,
leading
significantly
improved
2.15
μmols
vanillin
temperature.
Pulsed
chronopotentiometry
demonstrated
cost‐effective
robust
technique
simple
setup
valorisation
lignin.
Combined
subsequent
thermolysis
step,
8.05
obtained.
ACS Omega,
Год журнала:
2024,
Номер
9(49), С. 48044 - 48054
Опубликована: Ноя. 25, 2024
Ethidium
bromide
(Et-Br)
is
a
widely
used
fluorescent
dye
in
molecular
biology
and
biotechnology
laboratories
for
visualizing
nucleic
acids
agarose
gel
electrophoresis.
However,
concerns
have
been
raised
about
its
environmental
impact
potential
health
risks
due
to
persistence
toxicity.
The
accumulation
long-term
effects
on
the
environment
necessitate
removal
of
Et-Br
from
water.
This
study
investigates
novel
cold
plasma
technology
degradation
Et-Br.
Cold
atmospheric
(CAP)
an
environmentally
friendly
that
does
not
produce
secondary
pollutants
generates
variety
potent
chemical
reactive
oxidants
such
as
hydroxyl
radicals
(
