Chemistry & Biodiversity,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 1, 2024
Abstract
Access
to
clean
and
safe
water
sadly
remains
an
issue
in
the
21
st
century.
Water
reservoirs,
whether
groundwater
or
surface
water,
are
routinely
contaminated
by
various
harmful
Emerging
Contaminants
(ECs).
One
of
most
prevalent
pollutants
among
these
is
Bisphenol
A,
which
classified
as
Endocrine
Disrupting
Compound
(EDC).
This
substance
adversely
interferes
with
endocrine
system,
primarily
mimicking
estrogen,
has
been
considered
a
potential
contributor
Polycystic
Ovary
Syndrome
(PCOS)
82.70
%
1,391
women
studied
showing
positive
correlation
between
BPA
exposure
PCOS.
PCOS
currently
disorder
affecting
reproductive
age;
however,
its
pathogenesis
unclear,
complicating
diagnosis
subsequently
patient
care.
In
this
review,
topics
thoroughly
examined,
particular
emphasis
on
biochar,
new
promising
method
for
large‐scale
purification.
Biochar,
derived
from
organic
waste
materials,
emerged
cost‐effective
remarkable
adsorption
properties
achieving
up
88
efficiency
over
four
cycles
reuse,
similar
that
activated
carbon.
review
interrogates
suitability
biochar
counteracting
EDC
pollutants.
Nanomaterials,
Год журнала:
2025,
Номер
15(5), С. 376 - 376
Опубликована: Фев. 28, 2025
Methyl
orange
(MO)
is
an
organic
synthetic
dye
widely
used
in
laboratory
and
industrial
applications.
In
settings,
it
serves
as
acid-base
indicator
due
to
its
distinct
color
change
both
acidic
alkaline
environments.
Industrially,
primarily
utilized
the
textile
industry
for
ultraviolet
(UV)
absorption
properties.
However,
discharge
leakage
of
methyl
into
environment
can
cause
severe
ecological
damage
pose
potential
carcinogenic
teratogenic
risks
human
health.
Therefore,
detecting
quantifying
concentration
various
matrices
crucial.
This
study
reports
synthesis
graphene
quantum
dots
(GQDs)
from
peel
a
precursor,
using
ethanol
dimethylformamide
(DMF)
solvents.
Cyan
(c-GQDs)
yellow
(y-GQDs)
were
synthesized
through
bottom-up
hydrothermal
method.
The
difference
attributed
redshift
caused
by
varying
ratio
pyridine
nitrogen
pyrrole
nitrogen.
These
GQDs
exhibited
notable
optical
properties,
with
c-GQDs
emitting
cyan
fluorescence
y-GQDs
under
UV
light.
To
investigate
quenching
effects,
nine
commonly
dyes
tested,
all
found
quench
y-GQDs,
having
most
significant
effect.
peel-derived
presence
poor
dispersion
DMF
solution.
Additionally,
possess
high
specific
surface
area,
abundant
functional
groups,
excellent
electronic
conductivity,
which
contribute
their
effective
performance.
average
thickness
(the
vertical
dimension
substrate
upwards)
was
3.51
nm,
confirming
graphene-like
structure.
They
emitted
within
wavelength
range
450-530
nm.
Notably,
linear
correlation
between
intensity
(regression
coefficient
=
0.9954),
indicating
sensing
materials
pollutant
detection.
Nowadays,
the
widespread
diffusion
of
infections
caused
by
opportunistic
fungi
represents
a
demanding
threat
for
global
health
security.
This
phenomenon
has
also
worsened
emergence
contagious
events
in
hospitalisation
environments
and
fact
that
many
have
developed
harsh
serious
resistance
mechanisms
to
traditional
antimycotic
drugs.
Hence,
design
novel
antifungal
agents
is
key
factor
counteract
mycotic
resistance.
Within
this
context,
nanomaterials
are
gaining
increasing
attention
thanks
their
biocidal
character.
Among
these,
carbon
dots
(CDs)
represent
class
zero-dimensional,
photoluminescent
quasi-spherical
nanoparticles
which,
great
tuneable
features,
found
applications
catalysis,
sensing
biomedicine.
Nevertheless,
only
few
works
define
recapitulate
properties.
Therefore,
we
aim
give
an
overview
about
recent
advances
synthesis
CDs
active
against
infective
fungi.
We
described
general
features
fungal
cells,
highlighting
some
most
common
mechanisms.
Then,
evaluated
effects
CDs,
antimicrobial
drugs-loaded
CDs-incorporated
packaging
systems
on
different
analysed
use
as
fluorescent
nano-trackers
bioimaging,
showing,
all
effects,
promising
application
agents.
Photochem,
Год журнала:
2024,
Номер
4(3), С. 361 - 376
Опубликована: Авг. 27, 2024
Photoinduced
chemical
reactions
and
the
development
of
new
materials
represent
a
current
significant
topic.
We
present
sustainable
eco-friendly
approach
to
Knoevenagel
condensation
reaction
involving
carbonyl
active
methylene
compounds.
Our
method
utilizes
photo-activated
carbon
dots
(CDs)
derived
from
5-hydroxymethylfurfural
(5HMF)
within
an
aqueous
medium
does
not
require
acidic,
basic,
or
thermal
conditions.
This
protocol
operates
effectively
with
aromatic,
aliphatic,
heteroaromatic
aldehydes
ketones.
The
5HMF-derived-CDs
can
be
reused
four
times
without
loss
activity.
Moreover,
this
methodology
is
suitable
for
scaling
up
reactions,
thereby
highlighting
its
potential
industrial
applications.
