Comptes Rendus Chimie,
Год журнала:
2025,
Номер
28(G1), С. 423 - 438
Опубликована: Апрель 16, 2025
PFASs
have
become
a
global
pollution
issue.
These
anthropogenic
and
unusually
stable
chemicals
been
in
use
since
the
1940s.
Thousands
of
them,
whether
molecular
or
polymeric,
developed
are
found
innumerable
industrial
processes
consumer
products.
Multiple
air
water
pathways
ensure
their
dissemination
when
released
into
environment.
They
can
adhere
to
rock
sediment,
concrete,
tarmac,
asphalt.
Humans,
animals,
plants
thus
exposed
through
air,
dust,
soil,
diet,
drinking
water,
wastewater.
Some
identified
as
very
persistent
environment,
bioaccumulative,
toxic
by
public
health
authorities.
This
review
emphasizes
that
specific
outstanding
properties
C–F
bond
derive
directly
from
fluorine’s
position
periodic
table.
Fluorinated
surfactants
also
capacity
form
large,
exceptionally
sturdy
supramolecular
self-assemblies
aqueous
solutions,
on
solid
surfaces
at
liquid
interfaces.
behavior
may
impact
fate
PFAS
pollutants
well
remediation
procedures,
fact
has
so
far
barely
recognized.
Finding
alternatives
fluorinated
fluoropolymers
deliver
comparably
high
performances
while
reducing
environmental
biological
be
extremely
challenging.
The
essential
concept
distinguishes
uses
for
which,
current
state,
hardly
find
any
replacement
product
capable
matching
demanded
those
which
lesser
performance
is
sufficient
attainable
otherwise,
not
speak
downright
futile.
need
discerning,
eco-responsible
accentuated
if
we
want
continue
benefit
unmatchable
performances.
SAR and QSAR in environmental research,
Год журнала:
2024,
Номер
35(4), С. 309 - 324
Опубликована: Апрель 2, 2024
In
this
study,
we
focus
on
the
development
of
Quantitative
Structure-Property
Relationship
(QSPR)
models
to
predict
critical
micelle
concentration
(CMC)
for
per-
and
polyfluoroalkyl
substances
(PFASs).
Experimental
CMC
values
both
fluorinated
non-fluorinated
compounds
were
meticulously
compiled
from
existing
literature
sources.
Our
approach
involved
constructing
two
distinct
types
based
Support
Vector
Machine
(SVM)
algorithms
applied
dataset.
Type
(I)
trained
exclusively
compounds,
while
(II)
developed
utilizing
entire
dataset,
incorporating
compounds.
Comparative
analyses
conducted
against
reference
data,
as
well
between
model
types.
Encouragingly,
exhibited
robust
predictive
capabilities
demonstrated
high
reliability.
Subsequently,
having
broadest
applicability
domain
was
selected
complement
experimental
thereby
enhancing
our
understanding
PFAS
behaviour.
Environmental Science Processes & Impacts,
Год журнала:
2023,
Номер
25(9), С. 1519 - 1531
Опубликована: Янв. 1, 2023
Microplastics
and
per-
polyfluoroalkyl
substances
(PFAS)
are
two
of
the
most
notable
emerging
contaminants
reported
in
environment.
Micron
nanoscale
plastics
possess
a
high
surface
area-to-volume
ratio,
which
could
increase
their
potential
to
adsorb
pollutants
such
as
PFAS.
One
concerning
sub-classes
PFAS
perfluoroalkyl
carboxylic
acids
(PFCAs).
PFCAs
often
studied
same
context
other
environmental
contaminants,
but
amphiphilic
properties
overlooked
determining
fate
This
lack
consideration
has
resulted
diminished
understanding
mobility
PFCAs,
well
interactions
with
media.
Here,
we
investigate
interaction
polyethylene
microplastics,
identify
role
weathering
modifying
nature
interactions.
Through
series
adsorption-desorption
experiments,
delineate
fluoroalkyl
tail
binding
microplastics.
As
number
carbon
atoms
chain
increases,
there
is
corresponding
adsorption
onto
relationship
can
become
modified
by
weathering,
where
released
from
macro
microplastic
after
exposure
simulated
sunlight.
study
identifies
fundamental
between
plastic
pollutants,
they
mutually
impact
thermodynamic
transport
properties.
