Angewandte Chemie International Edition,
Год журнала:
2020,
Номер
59(40), С. 17732 - 17738
Опубликована: Июнь 8, 2020
Abstract
Single‐walled
carbon
nanotubes
(SWCNTs)
are
a
1D
nanomaterial
that
shows
fluorescence
in
the
near‐infrared
(NIR,
>800
nm).
In
past,
covalent
chemistry
was
less
explored
to
functionalize
SWCNTs
as
it
impairs
NIR
emission.
However,
certain
sp
3
defects
(quantum
defects)
lattice
have
emerged
preserve
and
even
introduce
new,
red‐shifted
emission
peak.
Here,
we
report
on
quantum
defects,
introduced
using
light‐driven
diazonium
chemistry,
serve
anchor
points
for
peptides
proteins.
We
show
maleimide
anchors
allow
conjugation
of
cysteine‐containing
proteins
such
GFP‐binding
nanobody.
addition,
an
Fmoc‐protected
phenylalanine
defect
serves
starting
point
visible
fluorophores
create
multicolor
situ
peptide
synthesis
directly
nanotube.
Therefore,
these
versatile
platform
tailor
both
nanotube's
photophysical
properties
well
their
surface
chemistry.
Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
61(18)
Опубликована: Янв. 3, 2022
Biosensors
are
powerful
tools
for
modern
basic
research
and
biomedical
diagnostics.
Their
development
requires
substantial
input
from
the
chemical
sciences.
Sensors
or
probes
with
an
optical
readout,
such
as
fluorescence,
offer
rapid,
minimally
invasive
sensing
of
analytes
high
spatial
temporal
resolution.
The
near-infrared
(NIR)
region
is
beneficial
because
reduced
background
scattering
biological
samples
(tissue
transparency
window)
in
this
range.
In
context,
single-walled
carbon
nanotubes
(SWCNTs)
have
emerged
versatile
NIR
fluorescent
building
blocks
biosensors.
Here,
we
provide
overview
advances
SWCNT-based
molecular
sensors.
We
focus
on
design
strategies
diverse
summarize
insights
into
photophysics
recognition.
Furthermore,
different
application
areas
discussed-from
imaging
cellular
systems
diagnostics
to
vivo
applications
perspectives
future.
Nature Communications,
Год журнала:
2020,
Номер
11(1)
Опубликована: Ноя. 25, 2020
Abstract
Infectious
diseases
are
worldwide
a
major
cause
of
morbidity
and
mortality.
Fast
specific
detection
pathogens
such
as
bacteria
is
needed
to
combat
these
diseases.
Optimal
methods
would
be
non-invasive
without
extensive
sample-taking/processing.
Here,
we
developed
set
near
infrared
(NIR)
fluorescent
nanosensors
used
them
for
remote
fingerprinting
clinically
important
bacteria.
The
based
on
single-walled
carbon
nanotubes
(SWCNTs)
that
fluoresce
in
the
NIR
optical
tissue
transparency
window,
which
offers
ultra-low
background
high
penetration.
They
chemically
tailored
detect
released
metabolites
well
virulence
factors
(lipopolysaccharides,
siderophores,
DNases,
proteases)
integrated
into
functional
hydrogel
arrays
with
9
different
sensors.
These
hydrogels
exposed
clinical
isolates
6
(
Staphylococcus
aureus
,
Escherichia
coli,…)
(≥25
cm)
imaging
allows
identify
distinguish
Sensors
also
spectrally
encoded
(900
nm,
1000
1250
nm)
differentiate
two
P.
aeruginosa
S.
penetrate
(>5
mm).
This
type
multiplexing
enables
differentiation
potential
smart
surfaces.
The Crop Journal,
Год журнала:
2021,
Номер
10(1), С. 1 - 12
Опубликована: Июль 13, 2021
Nano-enabled
agriculture
is
an
emerging
hot
topic.
To
facilitate
the
development
of
nano-enabled
agriculture,
reviews
addressing
or
discussing
applications,
knowledge
gap,
future
research
needs,
and
possible
new
field
plant
nanobiotechnology
in
agricultural
production
are
encouraged.
Here
we
review
following
topics
for
agriculture:
1)
improving
stress
tolerance,
2)
sensing
early
detection,
3)
targeted
delivery
controlled
release
agrochemicals,
4)
transgenic
events
non-model
crop
species,
5)
seed
nanopriming.
We
discuss
gaps
these
topics.
Besides
use
nanomaterials
harvesting
more
electrons
to
improve
photosynthetic
performance,
they
could
be
used
convert
nIR
UV
visible
light
expand
spectrum
photosynthesis.
this
approach
maintaining
photosynthesis
under
light-insufficient
conditions.
Our
aim
aid
researchers
learn
quickly
how
production.
Frontiers in Plant Science,
Год журнала:
2021,
Номер
12
Опубликована: Май 28, 2021
Agriculture
is
an
important
source
of
human
food.
However,
current
agricultural
practices
need
modernizing
and
strengthening
to
fulfill
the
increasing
food
requirements
growing
worldwide
population.
Genome
editing
(GE)
technology
has
been
used
produce
plants
with
improved
yields
nutritional
value
as
well
higher
resilience
herbicides,
insects,
diseases.
Several
GE
tools
have
developed
recently,
including
clustered
regularly
interspaced
short
palindromic
repeats
(CRISPR)
nucleases,
a
customizable
successful
method.
The
main
steps
process
involve
introducing
transgenes
or
CRISPR
into
via
specific
gene
delivery
systems.
certain
limitations,
time-consuming
complicated
protocols,
potential
tissue
damage,
DNA
incorporation
in
host
genome,
low
transformation
efficiency.
To
overcome
these
issues,
nanotechnology
emerged
groundbreaking
modern
technique.
Nanoparticle-mediated
superior
conventional
biomolecular
approaches
because
it
enhances
efficiency
for
both
temporal
(transient)
permanent
(stable)
genetic
modifications
various
plant
species.
discoveries
advanced
technologies,
challenges
developing
short-term
breeding
strategy
remain.
Thus,
this
review,
nanobased
systems
engineering
are
discussed
detail.
Moreover,
we
suggested
effective
method
hasten
crop
improvement
programs
by
combining
such
speed
CRISPR/Cas,
nanotechnology.
overall
aim
review
provide
detailed
overview
nanotechnology-based
techniques
suggest
applications
possible
enhancement.
Abstract
Plants
have
complex
internal
signaling
pathways
to
quickly
adjust
environmental
changes
and
harvest
energy
from
the
environment.
Facing
growing
population,
there
is
an
urgent
need
for
plant
transformation
precise
monitoring
of
growth
improve
crop
yields.
Nanotechnology,
interdisciplinary
research
field,
has
recently
been
boosting
yields
meeting
global
needs.
In
this
context,
a
new
“plant
nanoscience,”
which
describes
interaction
between
plants
nanotechnology,
emerges
as
times
require.
Nanosensors,
nanofertilizers,
nanopesticides,
nano‐plant
genetic
engineering
are
great
help
in
increasing
Nanogenerators
helping
develop
potential
field
harvesting.
Furthermore,
uptake
internalization
nanomaterials
possible
effects
also
worthy
attention.
review,
forward‐looking
perspective
on
nanoscience
presented
feasible
solutions
future
food
shortages
crises
provided.
Journal of Nanobiotechnology,
Год журнала:
2022,
Номер
20(1)
Опубликована: Июнь 14, 2022
Abstract
Sustainable
agriculture
is
an
important
conception
to
meet
the
growing
food
demand
of
global
population.
The
increased
need
for
adequate
and
safe
food,
as
well
ongoing
ecological
destruction
associated
with
conventional
practices
are
key
challenges.
Nanomaterials
being
developed
in
sector
improve
growth
protection
crops.
Among
various
engineered
nanomaterials,
carbon
nanotubes
(CNTs)
one
most
promising
carbon-based
nanomaterials
owing
their
attractive
physiochemical
properties
such
small
size,
high
surface
area,
superior
mechanical
thermal
strength,
offering
better
opportunities
applications.
This
review
provides
basic
information
about
CNTs,
including
history;
classification;
electrical,
thermal,
properties,
a
focus
on
applications
field.
Furthermore,
mechanisms
uptake
translocation
CNTs
plants
defense
against
environmental
stresses
discussed.
Finally,
major
shortcomings,
threats,
challenges
assessed
provide
broad
clear
view
potential
future
directions
CNT-based
achieve
goal
sustainability.
