Water,
Год журнала:
2023,
Номер
15(20), С. 3703 - 3703
Опубликована: Окт. 23, 2023
The
modification
of
pristine
biochar
derived
from
the
waste
sweet
prickly
pear
using
green
method
to
produce
nano-sized
(nanobiochar)
for
removal
steroidal
hormones
and
heavy
metals
water
wastewater
is
reported
in
this
study.
Based
on
characterisation
results
FTIR,
Raman
spectroscopy,
XPS,
material
had
(COOH),
(C=O),
(OH)
functional
groups
typical
graphitic
amorphous
carbon.
SEM-EDS
XRD
showed
that
was
mesoporous
nature.
BET
analysis
revealed
surface
area
significantly
increased
220.1
m2/g
354.6
after
biochar.
TGA-DSC
results,
thermally
stable
up
550
°C.
A
complete
factorial
experimental
design
Minitab
21
Statistical
Software
(version
18.1)
employed
optimise
adsorption
conditions.
F-values
p-values
lack-of-fit
model
acceptability
significance
ANOVA
model.
Freundlich
isotherm
found
provide
a
better
fit
steroid
data
than
Langmuir
isotherm,
with
moderate
values
R2
≥
0.92
0.95
Freundlich,
as
well
maximum
capacities
14.53
mg/g,
10.58
12.50
5.73
5.63
9.75
mg/g
obtained
estriol,
α-oestradiol,
β-oestradiol,
testosterone,
progesterone,
bisphenol
A.
were
lower
metal
adsorption,
8.58
4.15
6.95
nickel,
cadmium,
lead,
respectively.
percentage
effluents
influents
between
84–89%
78–86%
metals,
highest
90–95%
spiked
ultrapure
both
metals.
exhibited
60%
first
four
cycles.
Biologging
has
significantly
advanced
ecological
biology
by
enabling
the
collection
of
data
from
free-roaming
animals
in
their
natural
habitats.
Traditionally,
these
measurements
have
largely
been
limited
to
temperature,
pressure,
and
movement.
Incorporating
physiological
animal
biomarkers
could
yield
valuable
orthogonal
sets,
providing
a
more
nuanced
understanding
organisms
context
environments
behaviors.
Despite
this
potential,
successful
such
biochemical
information
remains
absent
thus
motivates
new
sensor
platforms.
Toward
end,
we
explore
hardware
nanosensor
optimization
implantable
sensors
for
tracking
hormone
levels
marine
animals.
The
transducer
element
is
based
on
polymer-wrapped
single-walled
carbon
nanotubes
that
act
as
nanosensors
embedded
within
biocompatible
poly(ethylene
glycol)
diacrylate
hydrogel.
This
work
investigates
performance
hydrogel
under
various
temperatures,
illumination
conditions,
nanoparticle
concentrations
We
further
prototype
miniaturized
fluorescent
system
integration
into
existing,
commercially
available
acoustic
tags
widely
used
studies.
demonstrate
baseline
100
nM
detection
limit
progesterone
an
example
important
using
integrated
platform.
Further
improvement
possible
with
signal-to-noise
ratio
via
development.
developed
form-factor
will
complement
presently
collected
insights
state
behavior
environments.
Annals of Animal Science,
Год журнала:
2023,
Номер
24(3), С. 695 - 705
Опубликована: Окт. 5, 2023
Abstract
All
organisms
require
the
ability
to
engage
in
either
sexual
or
asexual
reproduction
order
ensure
their
own
survival.
In
aquaculture,
when
one
sex
outgrows
other
faster,
farmers
use
hormones
stimulate
growth.
Furthermore,
production
of
fish
based
on
dimorphism
is
predominantly
executed
through
utilization
estrogens
and
androgens.
Environmentally,
these
compounds
may
pollute
ecosystem
cause
endocrine
system
alterations
that
harmful
effects;
thus,
they
must
be
handled
carefully
assure
environmental,
biological,
food
safety.
Phytoestrogens
as
natural
non-steroidal
phenolic
plant
chemicals
resemble
17-β-estradiol,
could
employed
a
safe
alternative
source
estrogens.
The
phytoestrogens
have
many
biological
effects
due
compete
with
estrogen
receptors,
but
negatively
affect
production,
reproduction,
behaviors
under
controlled
conditions.
Thus,
current
literature
emphasizes
beneficial
aquatic
animal
performance,
behaviors,
some
reproductive
features.
Water
contamination
has
become
a
global
challenge
to
human
survival.
Non-biodegradable
heavy
metal
cations
and
steroid
hormones
could
accumulate
in
the
body
result
serious
health
problems.
In
this
study,
we
prepared
biochar
from
waste
shells
of
African
star
apples
modified
using
solvent-free
ball
milling
facile
method.
The
X-ray
photoelectron
spectrometer
(XPS)
Fourier
transform
infrared
spectroscopy
(FTIR)
analysis
revealed
functional
groups
C=C,
C-O,
C=O.
Brunauer
Emmett
Teller
(BET)
was
used
determine
surface
area,
area
ball-milled
obtained
at
550
°C
(BASA550)
increased
174
m2/g
304
after
modification.
Langmuir
Freundlich
adsorption
isotherms
best
described
experimental
data
with
RL
<
1
1/n
high
degree
agreement
R2
data;
(R2
=
0.9291-0.9992)
0.9077-0.9974).
kinetic
studies
pseudo-first-order
pseudo-second-order
models
that
model
accurately
process).
application
BASA550
for
treating
wastewater
samples
showed
good
percentage
removal.
removal
cadmium,
nickel,
lead
recorded
as
92.96%,
90.89%,
90.29%,
respectively.
influent
effluent
were
found
be
85.06%,
83.87%,
84.73%,
89.37%,
86.48%,
87.40%,
maximum
ultrapure
water
ranged
84.20
89.63%,
while
spiked
78.91-87.81%
73.58-84.51%
obtained.
reusability
investigated
adsorbent
had
potential
first
four
cycles.
