Catalysis Today,
Journal Year:
2022,
Volume and Issue:
423, P. 113903 - 113903
Published: Sept. 20, 2022
The
aqueous
photocatalyzed
degradation
of
trimethoprim
(TMP)
and
sulfamethoxazole
(SMX),
highly
prescribed
antibiotics,
often
found
in
hospital
wastewaters
and/or
surface/ground
waters
high
concentrations,
is
described,
using
a
400
W
medium
pressure
mercury
lamp
as
irradiation
source,
air
oxidant
porphyrin
based
photocatalyst.
new
photocatalyst
was
prepared
by
encapsulation
stable
meso-tetra(2,6-dichlorophenyl)porphyrin
photosensitizer
into
acetylated
lignin
nanoparticles,
which
are
derived
from
bio-based
cellulose
industry
byproduct.
This
reusable
catalyst
(after
at
least
7
cycles,
no
loss
activity
or
degradation/leaching,
observed)
capable
promoting
the
nearly
complete
TMP
SMX
with
unprecedented
total
organic
carbon
(TOC)
removal,
namely
75
%
85
%,
respectively.
Mechanistic
studies
these
reactions,
singlet
oxygen
radical
scavengers,
followed
HPLC-MS
analysis
allowed
identification
only
two
residual
photoproducts.
Biomedicines,
Journal Year:
2021,
Volume and Issue:
9(6), P. 584 - 584
Published: May 21, 2021
Health
problems
and
reduced
treatment
effectiveness
due
to
antimicrobial
resistance
have
become
important
global
are
factors
that
negatively
affect
life
expectancy.
Antimicrobial
photodynamic
therapy
(APDT)
is
constantly
evolving
can
minimize
this
problem.
Reactive
oxygen
species
produced
when
nontoxic
photosensitizers
exposed
light
the
main
functional
components
of
APDT
responsible
for
microbial
destruction;
therefore,
has
a
broad
spectrum
target
pathogens,
such
as
bacteria,
fungi,
viruses.
Various
photosensitizers,
including
natural
extracts,
compounds,
their
synthetic
derivatives,
being
investigated.
The
limitations,
weak
activity
against
Gram-negative
solubility,
specificity,
cost,
encourage
exploration
new
photosensitizer
candidates.
Many
additional
methods,
cell
surface
engineering,
cotreatment
with
membrane-damaging
agents,
nanotechnology,
computational
simulation,
sonodynamic
therapy,
also
investigated
develop
novel
methods
improved
properties.
In
review,
we
summarize
research,
focusing
on
used
in
vitro
vivo
experimental
models.
addition,
describe
limitations
observed
developed
counter
those
emerging
technologies.
Molecules,
Journal Year:
2020,
Volume and Issue:
25(22), P. 5239 - 5239
Published: Nov. 10, 2020
Photodynamic
inactivation
of
microorganisms
has
gained
substantial
attention
due
to
its
unique
mode
action,
in
which
pathogens
are
unable
generate
resistance,
and
the
fact
that
it
can
be
applied
a
minimally
invasive
manner.
In
photodynamic
therapy
(PDT),
non-toxic
photosensitizer
(PS)
is
activated
by
specific
wavelength
light
generates
highly
cytotoxic
reactive
oxygen
species
(ROS)
such
as
superoxide
(O
International Journal of Molecular Sciences,
Journal Year:
2022,
Volume and Issue:
23(10), P. 5405 - 5405
Published: May 12, 2022
There
are
various
biomaterials,
but
none
fulfills
all
requirements.
Cellulose
biopolymers
have
advanced
biomedicine
to
satisfy
high
market
demand
and
circumvent
many
ecological
concerns.
This
review
aims
present
an
overview
of
cellulose
knowledge
technical
biomedical
applications
such
as
antibacterial
agents,
antifouling,
wound
healing,
drug
delivery,
tissue
engineering,
bone
regeneration.
It
includes
extensive
bibliography
recent
research
findings
from
fundamental
applied
investigations.
Cellulose-based
materials
tailorable
obtain
suitable
chemical,
mechanical,
physical
properties
required
for
applications.
The
chemical
structure
allows
modifications
simple
conjugation
with
several
materials,
including
nanoparticles,
without
tedious
efforts.
They
render
the
cheap,
biocompatible,
biodegradable,
easy
shape
process.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(38)
Published: April 23, 2024
Abstract
Currently,
microbial
infections
have
posed
an
arduous
challenge
to
global
public
health,
whereas
the
rise
of
antibiotic
resistance
is
rendering
traditional
therapies
futile,
prompting
development
new
antimicrobial
technologies.
Photoactive
nanomaterials
thus
garnered
a
thriving
interest
for
disinfection
owing
their
superior
antibacterial
efficaciousness,
favorable
biosafety,
and
rapidness
spatiotemporal
precision
in
excreting
bactericidal
actions.
The
review
summarizes
recent
advances
emerging
trends
design,
nanoengineering,
bioapplications
photoactive
antimicrobials.
It
commences
by
elaborating
fundamental
theories
on
bacterial
resistance,
mechanisms
phototherapy.
Subsequently,
regulation
effectiveness
comprehensively
discussed,
centering
criteria
strategies
tuning
photoabsorption
spectra,
photothermal
conversion,
photocatalytic
efficiency,
alongside
tactics
enabling
synergistic
therapies.
This
followed
comparative
analyses
techniques
modalities
synthesizing
engineering
with
diverse
structures,
forms,
functionalities.
Thereafter,
state‐of‐the‐art
applications
phototherapies
across
various
medical
sectors
are
portrayed,
key
challenges
opportunities
finally
discussed
spur
future
innovations
translation.
envisaged
provide
useful
guidance
devising
developing
nanomaterials‐based
photoresponsive
antimicrobials
application‐specific
materials
properties
biological
functions.
Materials Horizons,
Journal Year:
2021,
Volume and Issue:
8(11), P. 2964 - 3008
Published: Jan. 1, 2021
Due
to
its
use
of
green
and
renewable
energy
negligible
bacterial
resistance,
photocatalytic
inactivation
is
be
considered
a
promising
sterilization
process.
Herein,
we
explore
the
relevant
mechanisms
photoinduced
process
on
active
sites
semiconductors
with
an
emphasis
semiconductors,
photoexcited
electron
transfer,
ROS-induced
toxicity
interactions
between
bacteria.
Pristine
such
as
metal
oxides
(TiO2
ZnO)
have
been
widely
reported;
however,
they
suffer
some
drawbacks
narrow
optical
response
high
photogenerated
carrier
recombination.
typical
modification
strategies
will
discussed
including
noble
doping,
ion
hybrid
heterojunctions
dye
sensitization.
Besides,
biosafety
biocompatibility
issues
semiconductor
materials
are
also
for
evaluation
their
potential
further
biomedical
applications.
Furthermore,
2D
become
candidates
in
recent
years
due
wide
NIR
light,
superior
antibacterial
activity
favorable
biocompatibility.
current
research
limitations
challenges
illustrated
introduce
appealing
directions
design
considerations
future
development
Advanced Healthcare Materials,
Journal Year:
2022,
Volume and Issue:
12(16)
Published: Oct. 18, 2022
Emergence
of
antibiotic-resistance
pathogens
has
caused
serious
health
issues
and
if
the
current
trend
is
to
continue,
treatment
infection
will
become
complicated
even
unsuccessful
due
new
antimicrobial
resistance
(AMR).
Therefore,
there
a
global
drive
identify
methods
treat
develop
better
antibacterial
materials
therapy.
Although
more
potent
antibiotics
have
aided
fight
against
microbes,
they
only
offer
temporary
solution
because
future
bacteria
strains
may
resistant
these
drugs.
Recently,
application
non-biological
such
as,
electrical
currents
photothermal/dynamic
therapies
kill
bacteria,
reveal
approaches
design
biomaterials,
as
complications
stemming
from
drug-resistant
can
be
obviated.
Furthermore,
recent
research
focused
on
mimicking
surface
patterns
plants
insects
lotus
leaves
dragonfly
wings.
Bio-inspired
micro/nano
been
replicated
variety
biomaterials
improve
bacterial
other
properties
with
good
success.
This
an
exciting
area
immense
practical
clinical
potentials.
In
this
review,
advances
in
chemical/biological
combat
AMR
are
summarized
related
mechanisms
discussed.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2021,
Volume and Issue:
9(31), P. 10513 - 10523
Published: July 14, 2021
Photobactericidal
hairy
nanocrystalline
cellulose
was
developed
as
a
bioinspired
nanofiller
for
engineering
self-disinfecting
food
packaging.
A
new
version
of
nanocellulose
functionalized
with
high
density
primary
amine
group
called
aminated
(ANCC)
synthesized.
As
natural
photosensitizer,
rose
bengal
(RB)
then
covalently
linked
to
ANCC
via
an
aqueous-based
bioconjugation
reaction,
confirmed
by
13C
nuclear
magnetic
resonance
and
Fourier
transform
infrared
spectroscopies.
The
antibacterial
effect
the
RB–ANCC
conjugate
evaluated
against
two
major
foodborne
pathogens,
namely
Listeria
monocytogenes
Salmonella
enterica
serotype
Typhimurium.
inactivated
over
80%
both
pathogens
upon
normal
light
irradiation.
remarkable
photoinactivation
S.
Typhimurium
achieved
using
RB–ANCC,
whereas
free
RB
had
no
effect.
We
selected
materials
(i.e.,
cellulose-based
film
web
electrospun
nanofibers)
incorporate
further
evaluating
antimicrobial
activity
identified
that
due
combination
photodynamically
generated
reactive
oxygen
species
electrostatically
induced
cell
wall
disruption
cationic
ANCC.
processed
green
chemistry
is
regarded
promising
photobactericidal
can
be
potentially
used
