Environmental Science & Technology,
Journal Year:
2023,
Volume and Issue:
57(45), P. 17439 - 17451
Published: Nov. 6, 2023
Antibiotics
are
anthropogenic
contaminants
with
a
global
presence
and
of
deep
concern
in
aquatic
environments,
while
less
is
known
about
the
occurrence
risks
their
transformation
products
(TPs).
Herein,
we
developed
comprehensive
suspect
nontarget
screening
workflow
based
on
high-resolution
mass
spectrometry
to
identify
unknown
antibiotic
TPs
wastewater
treatment
plant
effluents.
We
identified
211
compounds
(35
parent
antibiotics
176
TPs)
at
confidence
levels
≥3
107
originated
from
macrolides.
were
quantified
by
17
standards
semiquantified
predicted
response
factors
accounted
for
55.6-95.1%
(76.7%
average)
total
concentrations
parents
TPs.
22.2%,
63.1%,
18.8%
estimated
be
more
persistent,
mobile,
toxic
than
antibiotics,
respectively.
Further
ecological
risk
assessment
toxicity
organisms
revealed
that
cumulative
generally
higher
those
parents.
Despite
newly
formed
N-oxide
TPs,
tertiary
process
(mainly
ozonation)
could
decrease
averaged
20.3%
36.2%
antibiotic-related
compounds.
This
study
highlights
necessity
include
environmental
scrutiny
different
environments.
Energy Nexus,
Journal Year:
2022,
Volume and Issue:
6, P. 100076 - 100076
Published: April 26, 2022
A
wide
range
of
unregulated
chemicals
synthetic
origin
or
derived
from
natural
sources,
which
may
be
a
contender
for
future
regulations
are
called
Emerging
Contaminants
(ECs).
The
concentration
ECs
ranges
ng/L
to
μg/L,
is
comparatively
smaller
as
compared
other
pollutants
present
in
water
and
wastewater.
Even
though
the
environmental
low,
still
possess
great
threat
humans
ecosystem.
These
compounds
being
widely
studied
due
their
potential
health
effects,
pervasive
nature,
difficult
degradation
through
conventional
techniques.
Pharmaceutical
active
(PhACs)
pharmaceutical
contaminants
(PCs)
one
major
groups
can
cause
inimical
effect
on
living
organisms
even
at
very
lower
concentration.
don't
degrade
easily
persistent
longer
periods
environment
stable
structure.
With
increase
demand
Pharmaceuticals
Personal
Care
Products
(PPCPs),
there
has
been
sharp
these
bodies.
This
mainly
inefficiency
wastewater
treatment
plants
removal
PhACs.
proper
identification
development
techniques
crucial
recent
times.
review
represents
comprehensive
summary
PCs,
various
PCs
an
overview
approaches
systems
available
removal.
Efficient
effective
methods
useful
completely
eradicating
making
bodies
safe
use.
So,
investment
capital
time
research
beneficial
future.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(7), P. 3694 - 3812
Published: March 22, 2024
Electrocatalytic
water
splitting
driven
by
renewable
electricity
has
been
recognized
as
a
promising
approach
for
green
hydrogen
production.
Different
from
conventional
strategies
in
developing
electrocatalysts
the
two
half-reactions
of
(e.g.,
and
oxygen
evolution
reactions,
HER
OER)
separately,
there
growing
interest
designing
bifunctional
electrocatalysts,
which
are
able
to
catalyze
both
OER.
In
addition,
considering
high
overpotentials
required
OER
while
limited
value
produced
oxygen,
is
another
rapidly
exploring
alternative
oxidation
reactions
replace
hybrid
toward
energy-efficient
generation.
This
Review
begins
with
an
introduction
on
fundamental
aspects
splitting,
followed
thorough
discussion
various
physicochemical
characterization
techniques
that
frequently
employed
probing
active
sites,
emphasis
reconstruction
during
redox
electrolysis.
The
design,
synthesis,
performance
diverse
based
noble
metals,
nonprecious
metal-free
nanocarbons,
overall
acidic
alkaline
electrolytes,
thoroughly
summarized
compared.
Next,
their
application
also
presented,
wherein
anodic
include
sacrificing
agents
oxidation,
pollutants
oxidative
degradation,
organics
upgrading.
Finally,
concise
statement
current
challenges
future
opportunities
presented
hope
guiding
endeavors
quest
sustainable
Metabolism,
Journal Year:
2022,
Volume and Issue:
133, P. 155223 - 155223
Published: May 29, 2022
Metformin
was
first
used
to
treat
type
2
diabetes
in
the
late
1950s
and
2022
remains
first-choice
drug
daily
by
approximately
150
million
people.
An
accumulation
of
positive
pre-clinical
clinical
data
has
stimulated
interest
re-purposing
metformin
a
variety
diseases
including
COVID-19.
In
polycystic
ovary
syndrome
improves
insulin
sensitivity.
1
may
help
reduce
dose.
Meta-analysis
from
studies
link
reduction
incidence
cancer.
Clinical
trials,
MILES
(Metformin
Longevity
Study),
TAME
(Targeting
Aging
with
Metformin),
have
been
designed
determine
if
can
offset
aging
extend
lifespan.
Pre-clinical
suggest
that
metformin,
via
suppression
pro-inflammatory
pathways,
protection
mitochondria
vascular
function,
direct
actions
on
neuronal
stem
cells,
protect
against
neurodegenerative
diseases.
also
studied
for
its
anti-bacterial,
-viral,
-malaria
efficacy.
Collectively,
these
raise
question:
Is
all
diseases?
It
unclear
as
whether
putative
beneficial
effects
are
secondary
an
anti-hyperglycemic
insulin-sensitizing
drug,
or
result
other
cellular
actions,
inhibition
mTOR
(mammalian
target
rapamycin),
anti-viral
actions.
Clarification
is
sought
ex
vivo
based
use
high
concentrations
be
translated
into
benefits,
they
reflect
'Paracelsus'
effect.
The
environmental
impact
no
known
metabolites,
another
emerging
issue
linked
endocrine
disruption
fish,
extensive
T2D
raised
concerns
over
human
reproduction.
objectives
this
review
to:
1)
evaluate
mechanism(s)
action
metformin;
2)
analyze
controversial
evidence
metformin's
effectiveness
treatment
than
diabetes;
3)
assess
reproducibility
data,
finally
4)
reach
informed
conclusion
reasons.
We
conclude
primary
benefits
antihyperglycaemic
secondarily
contribute
reduced
risk
number
thereby
enhancing
healthspan.
However,
like
improving
endothelial
function
independent
glucose
homeostasis
add
therapeutic
Environmental Science and Ecotechnology,
Journal Year:
2022,
Volume and Issue:
13, P. 100212 - 100212
Published: Nov. 9, 2022
Antibiotics,
the
most
frequently
prescribed
drugs,
have
been
widely
applied
to
prevent
or
cure
human
and
veterinary
diseases
undoubtedly
led
massive
releases
into
sewer
networks
wastewater
treatment
systems,
a
hotspot
where
occurrence
transformation
of
antibiotic
resistance
take
place.
Extracellular
polymeric
substances
(EPS),
biopolymers
secreted
via
microbial
activity,
play
an
important
role
in
cell
adhesion,
nutrient
retention,
toxicity
resistance.
However,
potential
roles
sludge
EPS
related
removal
antibiotics
are
still
unclear.
This
work
summarizes
composition
physicochemical
characteristics
state-of-the-art
EPS,
highlights
critical
removal,
evaluates
their
defense
performances
under
different
exposures,
analyzes
typical
factors
that
could
affect
sorption
biotransformation
behavior
antibiotics.
Next,
interactions
between
genes
analyzed.
Future
perspectives,
especially
engineering
application
for
detection
defense,
also
emphatically
stressed.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Aug. 28, 2023
In
recent
ages,
green
nanotechnology
has
gained
attraction
in
the
synthesis
of
metallic
nanoparticles
due
to
their
cost-effectiveness,
simple
preparation
steps,
and
environmentally-friendly.
present
study,
copper
oxide
(CuO
NPs)
were
prepared
using
Parthenium
hysterophorus
whole
plant
aqueous
extract
as
a
reducing,
stabilizing,
capping
agent.
The
CuO
NPs
characterized
via
UV-Vis
Spectroscopy,
Fourier
Transform
Infrared
Spectroscopy
(FTIR),
powder
X-Ray
Diffraction
(XRD),
Scanning
Electron
Microscopy
(SEM),
Transmission
(TEM),
Dynamic
Light
Scattering
(DLS).
spectra
showed
surface
plasmonic
resonance
band
occur
at
340
nm.
FTIR
analysis
revealed
presence
secondary
metabolites
on
NPs,
with
characteristic
Cu-O
stretching
being
identified
522
cm
Global Change Biology,
Journal Year:
2023,
Volume and Issue:
29(12), P. 3240 - 3255
Published: March 21, 2023
Abstract
Climate
change,
biodiversity
loss,
and
chemical
pollution
are
planetary‐scale
emergencies
requiring
urgent
mitigation
actions.
As
these
“triple
crises”
deeply
interlinked,
they
need
to
be
tackled
in
an
integrative
manner.
However,
while
climate
change
often
studied
together,
as
a
global
factor
contributing
worldwide
loss
has
received
much
less
attention
research
so
far.
Here,
we
review
evidence
showing
that
the
multifaceted
effects
of
anthropogenic
chemicals
environment
posing
growing
threat
ecosystems.
Therefore,
failure
account
for
may
significantly
undermine
success
protection
efforts.
We
argue
progress
understanding
counteracting
negative
impact
on
requires
collective
efforts
scientists
from
different
disciplines,
including
but
not
limited
ecology,
ecotoxicology,
environmental
chemistry.
Importantly,
recent
developments
fields
have
now
enabled
comprehensive
studies
could
efficiently
address
manifold
interactions
between
Based
their
experience
with
intricate
biodiversity,
ecologists
well
equipped
embrace
additional
challenge
complexity
through
interdisciplinary
collaborations.
This
offers
unique
opportunity
jointly
advance
seminal
frontier
ecology
facilitate
development
innovative
solutions
protection.