Embryogenesis
is
a
multiscale
process
during
which
developmental
symmetry
breaking
transitions
give
rise
to
complex
multicellular
organisms.
Recent
advances
in
high-resolution
live-cell
microscopy
provide
unprecedented
insights
into
the
collective
cell
dynamics
at
various
stages
of
embryonic
development.
This
rapid
experimental
progress
poses
theoretical
challenge
translating
high-dimensional
imaging
data
predictive
low-dimensional
models
that
capture
essential
ordering
principles
governing
migration
geometries.
Here,
we
combine
mode
decomposition
ideas
have
proved
successful
condensed
matter
physics
and
turbulence
theory
with
recent
sparse
dynamical
systems
inference
realize
computational
framework
for
learning
quantitative
continuum
from
single-cell
data.
Considering
pan-embryo
early
gastrulation
zebrafish
as
widely
studied
example,
show
how
trajectory
on
curved
surface
can
be
coarse-grained
compressed
suitable
harmonic
basis
functions.
The
resulting
representation
enables
compact
characterization
direct
an
interpretable
hydrodynamic
model,
reveals
similarities
between
active
Brownian
particle
surfaces.
Due
its
generic
conceptual
foundation,
expect
mode-based
model
help
advance
biophysical
understanding
wide
range
structure
formation
processes.
ACS Nano,
Journal Year:
2023,
Volume and Issue:
17(15), P. 14196 - 14204
Published: July 26, 2023
Microrobots
are
being
explored
for
biomedical
applications,
such
as
drug
delivery,
biological
cargo
transport,
and
minimally
invasive
surgery.
However,
current
efforts
largely
focus
on
proof-of-concept
studies
with
nontranslatable
materials
through
a
"design-and-apply"
approach,
limiting
the
potential
clinical
adaptation.
While
these
have
been
key
to
advancing
microrobot
technologies,
we
believe
that
distinguishing
capabilities
of
microrobots
will
be
most
readily
brought
patient
bedsides
"design-by-problem"
which
involves
focusing
unsolved
problems
inform
design
practical
capabilities.
As
outlined
below,
propose
translation
accelerated
by
judicious
choice
target
improved
delivery
considerations,
rational
selection
translation-ready
biomaterials,
ultimately
reducing
burden
enhancing
efficacy
therapeutic
drugs
difficult-to-treat
diseases.
Reports on Progress in Physics,
Journal Year:
2024,
Volume and Issue:
87(5), P. 056601 - 056601
Published: March 22, 2024
Single
and
collective
cell
migration
are
fundamental
processes
critical
for
physiological
phenomena
ranging
from
embryonic
development
immune
response
to
wound
healing
cancer
metastasis.
To
understand
a
physical
perspective,
broad
variety
of
models
the
underlying
mechanisms
that
govern
motility
have
been
developed.
A
key
challenge
in
such
is
how
connect
them
experimental
observations,
which
often
exhibit
complex
stochastic
behaviours.
In
this
review,
we
discuss
recent
advances
data-driven
theoretical
approaches
directly
with
data
infer
dynamical
migration.
Leveraging
nanofabrication,
image
analysis,
tracking
technology,
studies
now
provide
unprecedented
large
datasets
on
cellular
dynamics.
parallel,
efforts
directed
towards
integrating
into
single
tissue
scale
aim
conceptualising
emergent
behaviour
cells.
We
first
review
inference
problem
has
addressed
both
freely
migrating
confined
Next,
why
these
dynamics
typically
take
form
underdamped
equations
motion,
can
be
inferred
data.
then
applications
machine
learning
heterogeneity
behaviour,
subcellular
degrees
freedom,
multicellular
systems.
Across
applications,
emphasise
methods
integrated
active
matter
cells,
help
reveal
molecular
control
behaviour.
Together,
promising
avenue
building
data,
providing
conceptual
links
between
different
length-scales
description.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(24)
Published: Jan. 31, 2024
Abstract
Soft
matter
with
diverse
functionalities
that
are
easily
designable
has
fascinated
tremendous
research
interests
in
the
past
several
decades.
Nevertheless,
inherent
confluence
of
time
and
length
scale
ubiquitous
soft
immensely
complicates
elucidation
structure–property
relationship
thereby
severely
impedes
function
exploration
materials.
Recently,
emergent
machine
learning
(ML)
techniques
open
new
paradigms
property
prediction
molecular
design
functional
materials,
due
to
their
extraordinarily
distinguished
performance
aspect
trend
identity
pattern
extraction
from
data,
objective
optimization
by
accelerating
guided
search
high‐dimensional
spaces.
This
review
exclusively
focuses
on
current
state‐of‐the‐art
progress
development
ML
applied
realms
matter,
ranging
coarse‐grained
simulations
theoretical
structural
formation
macroscopic
properties,
as
well
algorithm‐aided
experiments.
Finally,
an
outlook
challenges
opportunities
for
this
rapidly
evolving
field
is
discussed.
The Journal of Chemical Physics,
Journal Year:
2025,
Volume and Issue:
162(3)
Published: Jan. 15, 2025
Dynamic
density
functional
theory
(DDFT)
is
a
fruitful
approach
for
modeling
polymer
dynamics,
benefiting
from
its
multiscale
and
hybrid
nature.
However,
the
Onsager
coefficient,
only
free
parameter
in
DDFT,
primarily
derived
empirically,
limiting
accuracy
broad
application
of
DDFT.
Herein,
we
propose
machine
learning-based,
bottom-up
workflow
to
directly
extract
coefficient
molecular
simulations,
circumventing
partly
heuristic
assumptions
traditional
approaches.
In
this
workflow,
proposed
DDFT-informed
ordinary
differential
equation
network,
trained
replicate
evolution
observed
Brownian
dynamics
(BD)
simulations.
We
validate
our
method
by
studying
lamellar
transition
symmetric
diblock
copolymer
melts,
where
DDFT
model
with
extracted
precisely
reproduces
both
interface
narrowing
predicted
BD
thereby
demonstrating
reliability
present
scheme.
Meanwhile,
studies
reveal
strong
relevance
dynamic
processes
identify
explicit
connection
between
correlations,
characterized
correlation
strength
length,
system
parameters,
e.g.,
Flory-Huggins
interaction
parameter.
found
that
far
point,
transmits
thermodynamic
force
into
current
localized
strong,
while
close
it
becomes
long-ranged
but
weak.
Our
aims
develop
more
generalized
framework
bridge
refined
particle-based
simulations
coarse-grained
field-based
calculations,
insights
gained
using
could
be
extended
other
non-equilibrium
systems
sciences.
Proceedings of the National Academy of Sciences,
Journal Year:
2025,
Volume and Issue:
122(11)
Published: March 14, 2025
Active
turbulence,
or
chaotic
self-organized
collective
motion,
is
often
observed
in
concentrated
suspensions
of
motile
bacteria
and
other
systems
self-propelled
interacting
agents.
To
date,
there
no
fundamental
understanding
how
geometrical
confinement
orchestrates
active
turbulence
alters
its
physical
properties.
Here,
by
combining
large-scale
experiments,
computer
modeling,
analytical
theory,
we
have
identified
a
generic
sequence
transitions
occurring
bacterial
confined
cylindrical
wells
varying
radii.
With
increasing
the
well’s
radius,
that
persistent
vortex
motion
gives
way
to
periodic
reversals,
four-vortex
pulsations,
then
well-developed
turbulence.
Using
computational
modeling
shown
reversal
results
from
nonlinear
interaction
first
three
azimuthal
modes
become
unstable
with
radius
increase.
The
account
for
our
key
experimental
findings.
further
validate
approach,
reconstructed
equations
data.
Our
findings
shed
light
on
universal
properties
matter
can
be
applied
various
biological
synthetic
systems.
Proceedings of the National Academy of Sciences,
Journal Year:
2021,
Volume and Issue:
118(40)
Published: Sept. 29, 2021
Significance
Active
matter
is
made
of
units
that
move
or
displace
others
by
using
energy
stored
internally
gathered
from
their
environment.
In
most
systems
and
models
considered
so
far,
these
self-propelled
are
constantly
moving.
Here
we
study
active
do
not
when
isolated,
but
can
be
set
into
motion
close
neighbors.
Our
subcritical
consists
Quincke
rollers,
is,
colloidal
spheres
at
the
bottom
a
cell
filled
with
conducting
fluid
submitted
to
vertical
electric
field.
We
find
spectacular
collective
self-organized
phenomena:
activity
waves
propagating
in
quiescent
population,
arbitrarily
large,
steadily
rotating
vortices
forming
without
confinement
particle
chirality.