Synthesis of Cu‐Ag Bimetallic Nanoparticle Hydrosols and Their Superior Antibacterial Performances for Control of Microbial Corrosion by Desulfovibrio Desulfuricans Biofilm
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 30, 2025
Abstract
Microbiologically
influenced
corrosion
(MIC)
of
engineering
structures
poses
significant
safety
risks,
particularly
in
environments
where
sulfate‐reducing
bacteria
(SRB)
are
prevalent.
In
this
study,
a
highly
stable
hydrosol
with
strong
antibacterial
properties
is
developed
by
adsorbing
hydrophilic
groups
polymer
chains
onto
the
Cu‐Ag
bimetallic
nanoparticles
(BNPs).
The
synergistic
effects
polyvinylpyrrolidone
(PVP)
and
polyvinyl
alcohol
(PVA)
overcame
incompatibility
between
components
nanomaterials,
enhancing
dispersion
stability
BNP
hydrosol.
results
demonstrates
that
exhibited
potent
activities
at
50
ppm
(w/w),
achieving
approximately
5‐log
reduction
for
sessile
cells
after
21
days
using
retrieved
coupons
from
3‐day
pre‐culture
vials.
led
to
much
cleaner
X80
coupon
surfaces
due
biofilm
inhibition
MIC
mitigation.
weight
loss
measurements
reveals
efficiencies
91%
78%
25
ppm,
respectively.
Additionally,
density
functional
theory
(DFT)
modeling
copper
regulates
silver
ion
release,
action.
While
shows
great
potential,
challenges
still
exist
scaling
its
applications,
especially
marine
other
harsh
environmental
settings.
This
research
provides
promising
platform
developing
sustainable
bacterial
control
strategies,
suppressing
SRB
growth.
Language: Английский
Nanomaterial-enhanced membranes for advanced water and wastewater treatment: a comprehensive review
Reviews in Environmental Science and Bio/Technology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 17, 2025
Language: Английский
Fabrication of highly tough, self-healing sodium alginate/polyacrylamide and copper based nanocomposite hydrogel and its application as strain and pressure sensor for human health monitoring and signature recognition
Usman Muhammad,
No information about this author
Xuan Cao,
No information about this author
Taoyi Zhang
No information about this author
et al.
International Journal of Biological Macromolecules,
Journal Year:
2025,
Volume and Issue:
311, P. 143734 - 143734
Published: May 1, 2025
Language: Английский
Membranas poliméricas dopadas con nanopartículas de cobre sintetizadas por química verde empleando un extracto de azafrán
Revista de Ciencias Tecnológicas,
Journal Year:
2025,
Volume and Issue:
8(2), P. 1 - 17
Published: May 1, 2025
Recientemente,
el
interés
por
las
nanopartículas
metálicas
(MNPs)
se
ha
incrementado
significativamente,
debido
a
propiedades
especiales
y
aplicaciones
potenciales
que
presentan
en
áreas
diversas.
Las
de
cobre
(CuNPs)
particular,
han
atraído
considerablemente
la
atención
sus
conductoras,
catalíticas,
ópticas,
eléctricas
antibacterianas.
En
presente
investigación
desarrolló
una
metodología
para
soportar,
métodos
in
situ
ex
situ,
CuNPs,
sintetizadas
química
verde
empleando
extracto
acuoso
azafrán
(ExCs),
membranas
poliméricas
ultrafiltración.
Los
nanocompositos
CuNPs/ExCs
caracterizaron
ATR-FTIR,
microscopia
electrónica
barrido
emisión
campo
(FESEM-EDS),
XRD,
análisis
termogravimétrico
(TGA)
permeabilidad
grado
ensuciamiento.
resultados
obtenidos
muestran
método
empleado
soportar
CuNPs
membrana
polimérica,
afecta
velocidad
ensuciamiento
mismas.
compositos
(utilizando
borohidruro
sodio
o
ácido
ascórbico
como
agente
reductor)
presentaron
los
mejores
(1.14x10-8
m/Pa.s
1.94x10-9
m/Pa.s,
respectivamente)
un
superficial
del
28.2
2.89%
respectivamente.
Lo
anterior
demuestra
repelen
material
orgánico
provoca
poliméricas.