Applied Microbiology,
Journal Year:
2024,
Volume and Issue:
4(4), P. 1630 - 1641
Published: Dec. 2, 2024
With
the
increase
in
mercury
pollution
around
world,
several
bacteria
have
been
identified
that
are
capable
of
resisting
toxicity.
this
mind,
aim
review
was
to
determine
which
genes
involved
resistance,
bacterial
genera
exhibit
and
isolation
sources
most
reported.
To
answer
these
questions,
PICO
method
(population,
intervention,
comparison,
outcome)
used,
three
databases
were
searched,
17
relevant
articles
included.
As
a
result,
resistance
is
due
set
mer
transcribe
proteins.
The
important
merA
merR,
their
proteins
confer
by
reducing
Hg
Hg+2
or
Hg0.
Among
studied,
those
Pseudomonas,
Escherichia,
phylum
Cyanobacteria
stand
out,
being
Escherichia
coli
Synechocystis
sp.,
highly
efficient
fast
at
Hg.
Based
on
results,
sp.
promising
candidates
for
environmental
Hg,
especially
aquatic
environments.
However,
there
lack
studies
mechanism
bioremediation
carried
out
cyanobacteria
influence
abiotic
factors
presence
and/or
expression
genes.
ACS ES&T Water,
Journal Year:
2021,
Volume and Issue:
1(3), P. 462 - 478
Published: Feb. 15, 2021
The
release
of
chemicals
into
water
systems
has
resulted
in
pollution
many
parts
the
world,
threatening
human
health
and
aquatic
ecosystems.
Sources
chemical
discharge
include
industry,
agricultural,
wastewater
treatment
plants,
stormwater
overflows.
To
combat
pollution,
European
Union
introduced
several
directives
that
set
concentration
limits
for
drinking
water,
surface
groundwater.
meet
these
limits,
it
is
essential
rapid,
reliable,
sensitive
analytical
detection
be
developed
put
use.
This
Review
presents
progress
made
development
electrochemical
biosensors
environmental
toxicants
(pesticides
heavy
metals)
over
past
seven
years
(2014–2020).
For
those
unfamiliar
with
this
field
research,
concept
a
biosensor
followed
by
critical
evaluation
their
performance
detecting
toxicants.
Current
challenges
are
discussed
as
well
potential
avenues
future
including
demands
enhanced
performance,
improved
stability
shelf
life,
greater
integration
microfluidic
devices
wireless
database
technologies
remote
sensing
applications.
We
believe
will
beneficial
enhance
awareness
appreciation
role
can
play
protecting
our
environment
resources.
Analytical Chemistry,
Journal Year:
2019,
Volume and Issue:
91(12), P. 7524 - 7530
Published: May 22, 2019
The
facile
and
economical
identification
of
pathogenic
bacteria,
especially
their
antibiotic-resistance,
is
crucial
in
the
realm
human
health
safety.
presence
Escherichia
coli
(E.
coli)
considered
as
an
indicator
water
contamination
closely
related
to
health.
Herein,
inspired
by
biocatalysis
bacterial
surfaces,
we
developed
a
simple
cost-effective
colorimetric-
electrochemical-based
bioassay
that
capable
analyzing
both
E.
its
relative
level
antibiotic
resistance.
In
this
approach,
p-benzoquinone
used
redox
mediator
monitor
concentration
specifically
distinguish
from
four
other
common
clinical
namely,
Staphylococcus
aureus
(S.
aureus),
Enterococcus
faecalis
faecalis),
Salmonella
pullorum
pullorum),
Streptococcus
mutans
mutans).
A
visible
color
change,
captured
with
smartphone
using
"light
box",
without
relying
on
any
complex
instruments,
can
reflect
bacteria.
accurate
quantification
was
investigated
electrochemical
system
ranges
1.0
×
103
109
CFU/mL.
We
further
demonstrated
capability
presented
biosensor
identifying
drug-resistant
bacteria
two
artificially
induced
antibiotic-resistant
Therefore,
not
only
detecting
high
sensitivity
specificity
but
also
provides
rapid
solution
evaluate
ChemElectroChem,
Journal Year:
2020,
Volume and Issue:
7(12), P. 2513 - 2526
Published: April 24, 2020
Abstract
Water
toxicity
assessment
is
of
great
importance
for
monitoring
water
quality
and
safeguarding
ecological
health.
Microbial
biosensors,
which
use
microorganisms
as
the
bioreceptor,
offer
a
promising
complementary
method
evaluation.
The
present
Minireview
has
particular
emphasis
on
microbial
biosensors
that
redox
mediators
signal
indicators
their
performance
acute
assessment.
principles,
fabrication
methods,
recent
developments
electrochemical
are
systematically
summarized.
In
addition,
application
fuel
cells
in
biological
oxygen
demand
biotoxicity
determination
also
briefly
introduced.
main
hurdles
hinder
on‐site
discussed.
With
unceasing
efforts
improvement
sensitivity
stability,
to
play
more
crucial
roles
ACS Sensors,
Journal Year:
2021,
Volume and Issue:
6(7), P. 2674 - 2681
Published: June 29, 2021
The
development
of
simple
and
rapid
toxicity
detection
methods
has
important
practical
significance.
In
this
work,
a
dual-signal
method
with
colorimetric
electrochemical
properties
for
water
was
proposed
the
first
time
based
on
color
reaction
between
Escherichia
coli
(E.
coli)
p-benzoquinone
(BQ).
Here,
E.
used
as
biocatalyst
BQ
mediator.
An
IC50
value
0.75
mg
L–1
Cu2+
obtained
using
two-step
method.
Strikingly,
could
also
be
estimated
visually
by
naked
eye,
minimum
limit
3.2
Cu2+.
extends
function
BQ,
result
is
more
reliable
than
traditional
single-signal
This
shows
certain
application
prospects.
