Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 1, 2024
Abstract
Cooperative
photobiocatalytic
processes
have
seen
extensive
potentials
for
the
synthesis
of
both
bulk
and
fine
chemicals
owing
to
their
versatility,
eco‐friendliness,
cost‐effectiveness.
Nevertheless,
developing
a
universal
effective
synthetic
strategy
compatible
with
catalytic
systems
remains
challenging.
In
this
study,
we
explored
cationic
liposomes
as
biocompatible
photocatalyst
encapsulation
combined
them
bacteria
overexpressing
enzymes
two‐step
three‐step
cascade
reactions.
Specifically,
water‐soluble
anthraquinone‐2‐sulfonate
(AQS),
which
can
oxidize
benzyl
alcohol,
is
encapsulated
within
core
composed
dioleoyl‐3‐trimethylammonium
propane
(DOTAP)
helper
lipid
cholesterol.
The
positive
charge
on
liposome
surface
enabled
electrostatic
interactions
negative
charges
membrane
Escherichia
coli
cells.
Bacterial
cells
various
enzymes,
such
Candida
antarctica
lipase
B
(CalB)
benzaldehyde
lyase
(BAL),
coated
production
added
value
compounds
through
reactions
excellent
production.
These
cascades
involve
CalB‐catalyzed
hydrolysis,
BAL‐catalyzed
condensation,
AQS‐driven
photo‐oxidation
Therefore,
offers
more
possibilities
combining
photocatalysis
biocatalysis
recoverability,
enhanced
mass
transfer,
compatibility
in
industrial
biotechnology
chemistry.
Catalysis Reviews,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 61
Published: May 28, 2024
Nowadays,
extensive
efforts
have
been
devoted
to
the
fabrication
and
design
of
metalbased
catalysts
with
high
activity,
selectivity,
stability.
Theoretical
experimental
investigations
empowered
construction
a
variety
techniques
tune
catalytic
efficiency
by
monitoring
their
size,
morphology,
composition,
crystal
structure.
Multimetal
(MMCs)
provide
revolutionary
synergistic
effect
between
metals,
which
is
promising
strategy
enhance
catalysts'
productivity
product
selectivity.
The
purpose
this
article
familiarize
readers
most
uptodate
information
regarding
synthesis
classification
MMCs.
key
roles
MMCs
electrocatalysts
in
applications
such
as
CO2
conversion
via
electrochemical
reduction
reaction
(ECO2RR),
H2
evolution
(HER),
O2
(OER),
(ORR),
N2
(NRR),
methanol
oxidation
(MOR),
ethanol
(EOR),
formic
acid
(FAOR),
urea
(UOR)
are
summarized.
This
review
also
addressed
challenges
prospects
for
multimetallic
catalyst
design,
characterization,
applications.
will
clear
roadmap
research
progress
electrocatalytic
Chemistry - A European Journal,
Journal Year:
2024,
Volume and Issue:
30(21)
Published: Feb. 8, 2024
Abstract
Recently,
catalytic
valorization
of
biomass‐derived
furans
has
received
growing
interest.
5‐Aminomethyl‐2‐furancarboxylic
acid
(AMFC),
a
furan
amino
acid,
holds
great
promise
in
the
aeras
polymer
and
pharmaceutical,
but
its
synthesis
remains
limited.
In
this
work,
we
report
chemobiocatalytic
route
toward
AMFC
by
combining
laccase‐TEMPO
system
recombinant
Escherichia
coli
(named
E.
_TAF)
harboring
ω‐transaminase
(TA),
L‐alanine
dehydrogenase
(L‐AlaDH)
formate
(FDH),
starting
from
5‐hydroxymethylfurfural
(HMF).
cascade,
HMF
is
oxidized
into
5‐formyl‐2‐furancarboxylic
(FFCA)
system,
then
resulting
intermediate
converted
_TAF
via
transamination
with
cheap
ammonium
instead
costly
organic
amine
donors,
theoretically
generating
H
2
O
CO
as
by‐products.
The
tandem
process
was
run
one‐pot
twostep
manner,
affording
approximately
81
%
yield,
together
10
2,5‐furandicarboxylic
(FDCA)
by‐product.
addition,
scale‐up
production
demonstrated,
0.41
g/L
h
productivity
8.6
titer.
This
work
may
pave
way
for
green
manufacturing
furan‐containing
acid.
ACS Catalysis,
Journal Year:
2023,
Volume and Issue:
13(14), P. 9404 - 9414
Published: July 1, 2023
Direct
valorization
of
biomass
into
value-added
chemicals
is
attractive
yet
challenging.
Herein,
we
report
a
one-pot
synthesis
2,5-bis(hydroxymethyl)furan
(BHMF)
and
its
diacetate
from
inexpensive
fructose
sugar
syrup
in
the
aqueous
phase
via
sequential
chemical
dehydration,
biocatalytic
reduction,
esterification.
A
robust
alcohol
dehydrogenase
Escherichia
coli
(EcYjgB)
was
identified
for
HMF
with
high
catalytic
efficiencies
toward
5-hydroxymethylfurfural
(HMF)
(kcat/Km,
1300
s–1
mM–1)
as
well
NADPH
(9700
mM–1).
Recombinant
E.
harboring
EcYjgB
(E.
coli_EcYjgB)
showed
tolerance
highly
toxic
strongly
inhibitory
biobased
furans,
enabling
smooth
reduction
1
M
0.5
furfural.
Its
practicality
demonstrated
by
gram-scale
BHMF
79%
isolated
yield
at
approximately
126
g/L
substrate
loading.
Biocatalytic
process
intensification
realized
improving
cell
membrane
permeability
using
ethyl
acetate,
providing
up
to
15
h
productivity.
concurrent
cascade
producing
constructed
combining
coli_EcYjgB
Mycobacterium
smegmatis
acyltransferase
(MsAcT)
variant
N94A,
affording
desired
product
93%
h.
Starting
crude
obtained
dehydration
organic
solvent
evaporation,
were
produced
>99
88%
yields,
respectively.
Finally,
direct
these
furan-based
products
sugars
performed
chemobiocatalysis,
without
isolation
any
intermediates,
resulting
yields
59%
(relative
sugar).
This
work
may
pave
way
scalable
production
renewable
biomass.
Industrial & Engineering Chemistry Research,
Journal Year:
2024,
Volume and Issue:
63(20), P. 8933 - 8948
Published: May 14, 2024
Selective
oxidation
of
furfural
has
become
important
for
the
synthesis
pharmaceutical
intermediates
and
chemical
industries.
The
development
effective
methods
biomass
valorization
is
a
very
attractive
subject.
Here,
we
performed
an
initial
investigation
into
photocatalytic
selective
to
maleic
acid
(MA)
as
valuable
vital
bioactive
intermediate
5-hydroxy-2(5H)-furanone
(HFO).
In
this
work,
MOFs-based
Ti
(NH2-MIL-125)
was
modified
with
easy
method
by
introducing
proper
amount
CdS
(2.5%)
on
surface
NH2-MIL-125.
photocatalyst
developed
in
work
best
gave
high
HFO
(52%),
MA
(90%)
selectivity,
conversion
(>90%)
under
various
reaction
conditions.
(2.5%)/NH2-MIL-125
nanocomposite
also
showed
long-term
stability.
Synergistic
interactions
between
active
NH2-MIL-125
(which
uses
organic
linkers
antenna)
sites
may
result
enhancement
activity
photocatalyst.
An
analysis
mechanism
revealed
that
were
produced
from
through
series
multistep
reactions,
including
oxidation,
decarboxylation,
ring
opening.
