Deleted Journal,
Journal Year:
2024,
Volume and Issue:
2(4)
Published: Nov. 1, 2024
Abstract
Magnetic
microparticles
(MPs)
and
nanoparticles
(NPs)
have
long
been
used
as
ideal
miniaturized
delivery
detection
platforms.
Their
use
micro‐
nanorobots
(MNRs)
is
also
emerging
in
the
recent
years
with
help
of
more
dedicated
external
magnetic
field
manipulations.
In
this
review,
we
summarize
research
progress
on
nanoparticle
(MNP)‐based
MNRs.
First,
fabrication
from
either
template‐assisted
NP
doping
methods
or
directly
synthesized
MPs
summarized.
The
driving
torque
sources
for
both
types
MNRs
are
analyzed,
their
propulsion
control
under
low
Reynolds
number
flows
discussed
by
evaluating
symmetry
breaking
mechanisms
interparticle
interactions.
Subsequently,
these
scientific
models,
bioimaging
agents,
active
delivery,
treatment
platforms
(drug
cell
sterilization),
biomedical
diagnostics
has
reviewed.
Finally,
perspective
MNPs‐based
was
outlined,
including
challenges
future
directions.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 13, 2025
Abstract
Magnetic
microrobots
are
significant
platforms
for
targeted
drug
delivery,
among
which
sperm‐inspired
types
have
attracted
much
attention
due
to
their
flexible
undulation.
However,
mass
production
of
sperm‐like
soft
magnetic
with
high‐speed
propulsion
is
still
challenging
the
need
more
reasonable
structure
design
and
facile
fabrication.
Herein,
a
novel
strategy
proposed
large‐scale
preparation
microalgae‐based
fully
head‐to‐tail
structure,
called
AlgaeSperm
robust
chemo‐photothermal
performance.
This
approach
deposited
Pd@Au
nanoparticles
(NPs)
inside
chlorella
cells,
further
coated
Fe
3
O
4
NPs
polydopamine
layers
form
heads.
Then,
flagella
grafted
via
assembly
@PVP
construct
final
AlgaeSperm.
Under
precessing
fields,
AlgaeSperms
can
achieve
forward
velocity
up
2.3
body
length/s,
highest
best
knowledge.
Besides,
maneuverability
in
swarm
also
verified.
In
vitro
anti‐cancer
experiments
conducted
after
loading
doxorubicin
(DOX)
confirm
excellent
work
offers
paradigm
constructing
great
potential
tumor
treatment.
Proceedings of the National Academy of Sciences,
Journal Year:
2025,
Volume and Issue:
122(4)
Published: Jan. 22, 2025
The
emerging
new
generation
of
small-scaled
acoustic
microrobots
is
poised
to
expedite
the
adoption
microrobotics
in
biomedical
research.
Recent
designs
these
have
enabled
intricate
bioinspired
motions,
paving
way
for
their
real-world
applications.
We
present
a
multiorifice
design
air-filled
spherical
that
convert
wave
energy
efficient
propulsion
through
resonant
encapsulated
microbubble.
These
can
swim
boundary-free
three-dimensional
(3D)
space
while
switching
between
various
frequency-dependent
locomotion
modes.
explore
dynamics
with
diameters
ranging
from
10
μm
100
μm,
focusing
on
3D
swimming
and
multimodal
response
stimuli
below
1
MHz.
Further,
we
elucidate
microrobots,
featuring
single
cavity,
which
contributes
complex
streaming
facilitates
swift,
unrestricted
movements.
Finally,
demonstrate
incorporating
additional
nickel
gold
layers
significantly
enhances
steering
visibility
optoacoustic
ultrasound
imaging,
enabling
development
next
healthcare
The European Physical Journal E,
Journal Year:
2025,
Volume and Issue:
48(2)
Published: Feb. 1, 2025
In
the
past
years,
amount
of
research
on
active
matter
has
grown
extremely
rapidly,
a
fact
that
is
reflected
in
particular
by
existence
more
than
1000
reviews
this
topic.
Moreover,
field
become
very
diverse,
ranging
from
theoretical
studies
statistical
mechanics
particles
to
applied
work
medical
applications
microrobots
and
biological
systems
artificial
swimmers.
This
makes
it
difficult
get
an
overview
over
as
whole.
Here,
we
provide
such
form
metareview
article
surveys
existing
review
articles
books
matter.
Thereby,
provides
useful
starting
point
for
finding
literature
about
specific
ACS Biomaterials Science & Engineering,
Journal Year:
2024,
Volume and Issue:
10(9), P. 5562 - 5594
Published: Aug. 15, 2024
As
a
new
micromanipulation
tool
with
the
advantages
of
small
size,
flexible
movement
and
easy
manipulation,
light-driven
microrobots
have
wide
range
prospects
in
biomedical
fields
such
as
drug
targeting
cell
manipulation.
Recently,
been
controlled
various
ways,
light
field
has
become
research
hotspot
by
its
noncontact
precise
localization,
fast
response,
biocompatibility.
It
utilizes
force
or
deformation
generated
to
precisely
control
microrobot,
combines
release
technology
realize
targeted
application.
Therefore,
this
paper
provides
an
overview
provide
ideas
for
manipulation
microrobots.
Here,
briefly
categorizes
driving
mechanisms
materials
microrobots,
which
mainly
include
photothermal,
photochemical,
biological.
Then,
typical
designs
different
strategies
multiple
physical
are
summarized.
Finally,
applications
bioimaging
presented
well
future
demonstrated.
ACS Materials Letters,
Journal Year:
2025,
Volume and Issue:
unknown, P. 668 - 674
Published: Jan. 23, 2025
A
major
challenge
in
developing
smart
micromachines
that
can
mimic
natural
microorganisms
is
their
ability
to
adapt
changing
environments.
This
study
presents
a
matchstick-shaped
microrotor
consisting
of
TiO2
head
and
SiO2
tail,
with
one
side
coated
by
PtO.
The
provides
photochemical
propulsion
under
UV
light,
while
the
PtO
coating
chemical
H2O2.
rotates
because
its
asymmetric
structure
uneven
forces.
Notably,
stronger
rotor
orbits
tighter
circles
as
engine
counteracts
engine,
two
engines
located
on
opposite
sides
center
mass.
Additionally,
microrotors
shorter
tails
moved
smaller
were
more
sensitive
changes
light
intensity.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 6, 2024
Abstract
Sensing
and
imaging
of
biomolecules
are
crucial
to
disease
diagnosis,
prognosis,
therapy
where
optical
techniques
have
essential
utility.
Untethered
remotely
controlled
micro/nanorobots
shown
promising
sensing
capabilities,
especially
in
complex
biological
environments.
In
this
review,
how
used
for
biosensing
while
highlighting
the
significant
developments
field
is
discussed.
Starting
done
by
exploring
colorimetric
methods
enabled
micro/nanorobots.
Significant
advancements
surface‐enhanced
Raman
spectroscopy‐integrated
reviewed.
Further,
state‐of‐the‐art
bio‐imaging
applications
at
vitro
intracellular
level
highlighted.
Novel
vivo
assisted
micro/nanorobot
sensors
examined.
Furthermore,
innovations
assessed
motion
augmentation
as
a
detection
mechanism,
with
point‐of‐care
molecular
diagnostics.
Finally,
challenges
associated
micro/nanorobots‐assisted
advanced
discussing
insights
about
potential
research
directions
rapidly
progressing
summarized.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 1, 2024
Abstract
Aquatic
insects
have
developed
versatile
locomotion
mechanisms
that
served
as
a
source
of
inspiration
for
decades
in
the
development
small‐scale
swimming
robots.
However,
despite
recent
advances
field,
efficient,
untethered,
and
integrated
powering,
actuation,
control
robots
remains
challenge
due
to
out‐of‐equilibrium
dissipative
nature
driving
physical
chemical
phenomena.
Here,
we
designed
small‐scale,
bioinspired
aquatic
locomotors
with
programmable
deterministic
trajectories
integrate
self‐propelled
motors
photoresponsive
shape‐morphing
structures.
A
Marangoni
motor
system
is
integrating
structural
protein
networks
self‐regulate
release
fuel
photochemical
liquid
crystal
network
(LCN)
actuators
change
their
shape
deform
out
surface
water.
While
diffusion
from
regulates
propulsion,
deformation
LCNs
provides
over
directionality
motion
at
air‐water
interface.
This
approach
gives
access
five
different
but
interchangeable
modes
within
single
robot
via
morphing
soft
structure.
The
proposed
design,
which
mimics
gliding
posture
semiaquatic
such
water
treaders,
offers
solutions
autonomous
untethered
orthogonal
power
control.
