Critical Reviews in Analytical Chemistry,
Год журнала:
2023,
Номер
unknown, С. 1 - 27
Опубликована: Ноя. 7, 2023
This
review
summarizes
(i)
compositions
and
types
of
improvised
explosive
devices;
(ii)
the
process
collection,
extraction
analysis
evidence
encountered
in
related
cases;
(iii)
inter-comparison
analytical
techniques;
(iv)
challenges
prospects
detection
technology.
The
highlights
this
study
include
extensive
information
regarding
National
&
International
standards
specified
by
USEPA,
ASTM,
so
on,
for
explosives
detection.
holistic
development
tools
ranging
from
conventional
methods
to
advanced
is
also
covered
article.
most
important
aspect
make
forensic
scientists
familiar
with
during
steps
avoid
them.
problems
can
be
analyte-based,
that
is,
interferences
due
matrix
or
added
molding/stabilizing
agents,
trace
amount
parent
post-blast
samples
many
more.
Others
are
techniques-based
viz.
specificity,
selectivity,
sensitivity
technique.
Thus,
it
has
become
a
primary
concern
adopt
rapid,
field
deployable,
highly
sensitive
techniques.
ACS Nano,
Год журнала:
2022,
Номер
16(5), С. 7080 - 7115
Опубликована: Май 5, 2022
This
paper
provides
an
overview
of
recent
developments
in
the
field
volatile
organic
compound
(VOC)
sensors,
which
are
finding
uses
healthcare,
safety,
environmental
monitoring,
food
and
agriculture,
oil
industry,
other
fields.
It
starts
by
briefly
explaining
basics
VOC
sensing
reviewing
currently
available
quickly
progressing
approaches.
then
discusses
main
trends
materials'
design
with
special
attention
to
nanostructuring
nanohybridization.
Emerging
materials
strategies
highlighted
their
involvement
different
types
technologies
is
discussed,
including
optical,
electrical,
gravimetric
sensors.
The
review
also
detailed
discussions
about
limitations
offers
potential
solutions.
status
suggestions
promising
directions
for
future
development
summarized.
Sensors,
Год журнала:
2021,
Номер
21(7), С. 2271 - 2271
Опубликована: Март 24, 2021
An
electronic
nose
(Enose)
relies
on
the
use
of
an
array
partially
selective
chemical
gas
sensors
for
identification
various
compounds,
including
volatile
organic
compounds
in
mixtures.
They
have
been
proposed
as
a
portable
low-cost
technology
to
analyse
complex
odours
food
industry
and
environmental
monitoring.
Recent
advances
nanofabrication,
sensor
microcircuitry
design,
neural
networks,
system
integration
considerably
improved
efficacy
Enose
devices.
Here,
we
highlight
different
types
semiconducting
metal
oxides
well
their
sensing
mechanism
into
systems,
pattern
recognition
techniques
employed
data
analysis.
We
offer
critical
perspective
state-of-the-art
commercial
custom-made
Enoses,
identifying
current
challenges
broader
uptake
systems
variety
applications.
The
olfactory
system
can
detect
and
recognize
tens
of
thousands
volatile
organic
compounds
(VOCs)
at
low
concentrations
in
complex
environments.
Bioelectronic
nose
(B-EN),
which
mimics
systems,
is
becoming
an
emerging
sensing
technology
for
identifying
VOCs
with
sensitivity
specificity.
B-ENs
integrate
electronic
sensors
bioreceptors
pattern
recognition
technologies
to
enable
medical
diagnosis,
public
security,
environmental
monitoring,
food
safety.
However,
there
currently
no
commercially
available
B-EN
on
the
market.
Apart
from
high
selectivity
necessary
compound
analysis,
commercial
must
overcome
issues
impacting
sensor
operation
other
problems
associated
odor
localization.
emergence
nanotechnology
has
provided
a
novel
research
concept
addressing
these
problems.
In
this
work,
structure
operational
mechanisms
biomimetic
systems
are
discussed,
emphasis
development
immobilization
materials.
Various
biosensor
applications
current
developments
reviewed.
Challenges
opportunities
fulfilling
potential
artificial
biohybrid
fundamental
practical
investigated
greater
depth.
Biosensors,
Год журнала:
2021,
Номер
11(4), С. 107 - 107
Опубликована: Апрель 4, 2021
Over
the
last
30
years,
optical
biosensors
based
on
nanostructured
materials
have
obtained
increasing
interest
since
they
allow
screening
of
a
wide
variety
biomolecules
with
high
specificity,
low
limits
detection,
and
great
sensitivity.
Among
them,
flexible
platforms
advantage
adapting
to
non-planar
surfaces,
suitable
for
in
vivo
real-time
monitoring
diseases
assessment
food
safety.
In
this
review,
we
summarize
newest
most
advanced
coupling
optically
active
(noble
metal
nanoparticles)
substrates
giving
rise
hybrid
nanomaterials
and/or
nanocomposites,
whose
performances
are
comparable
ones
hard
(e.g.,
glass
semiconductors).
We
focus
localized
surface
plasmon
resonance
(LSPR)-based
surface-enhanced
Raman
spectroscopy
(SERS)-based
biosensors.
show
that
large-scale,
cost-effective
plasmonic
can
be
realized
currently
available
techniques
emphasize
open
issues
associated
topic.
CrystEngComm,
Год журнала:
2022,
Номер
24(39), С. 6804 - 6824
Опубликована: Янв. 1, 2022
As
a
post-nanotechnology
concept,
nanoarchitectonics
has
emerged
from
the
20th
century
to
21st
century.
This
review
summarizes
recent
progress
in
field
of
metal-free
porous
carbon
nanoarchitectonics.
TrAC Trends in Analytical Chemistry,
Год журнала:
2021,
Номер
142, С. 116330 - 116330
Опубликована: Май 14, 2021
Due
to
unique
abilities
of
the
animals
regarding
analysis
complex
gas
substances,
they
still
remain
a
gold
standard
in
explosives.
Unusual
capabilities
biological
chemosensory
systems,
including
both
vertebrates
and
invertebrates,
stimulate
elaboration
devices
mimicking
their
activity
operation
parameters
as
precisely
possible.
The
electronic
analogues
are
subject
investigation
many
research
centres,
which
brings
successful
commercialization
closer.
They
believed
substitute
or
complement
explosive
hazardous
ones.
limitations
classic
sensors
can
be
overcome
using
strategies
inspired
by
solutions
known
from
systems.
Apart
high
selectivity
sensitivity
desired
for
explosives,
systems
allows
overcoming
other
problems
connected
mainly
with
effective
sampling
odour
localization.
Presented
review
is
focused
on
biomimetic
devices,
mimic
sense
smell
direct
way
inspiration
design
used
detection
Potential
biosensors
bioelectronic
noses
(B-ENs)
incredibly
accurate
versatile
"biological
noses"
was
evaluated.
A
summary
olfactory
should
facilitate
approach
problem
artificial
instruments
development
strategy
aimed
at
explosives
these
