bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 6, 2024
Summary
Engineered
living
materials
(ELMs)
are
garnering
considerable
attention
as
a
promising
alternative
to
traditional
building
because
of
their
potentially
lower
carbon
footprint
and
additional
functionalities
conferred
by
cells.
However,
biomineralized
ELMs
designed
for
load-bearing
purposes
limited
in
current
design
usage
several
reasons,
including
(1)
low
microbial
viability
(2)
control
specimen
internal
microarchitecture.
We
created
‘third
generation’
from
fungal
mycelium
scaffolds
that
were
mineralized
either
the
fungus
itself
or
ureolytic
bacteria.
Both
self-mineralized
(i.e.
fungally-mineralized)
bacterially-mineralized
retained
high
at
least
four
weeks
room
temperature
accelerated
dehydration
storage
conditions,
without
addition
protectants
against
desiccation.
The
microscale
modulus
calcium
carbonate
varied
with
different
scaffold
moduli
largest
stiffest
bacterial
biomineralization
mycelium.
As
an
example
how
can
enable
complex
geometries
materials,
osteonal-bone
mimetic
architectures
patterned
using
These
results
demonstrate
potential
new
frontiers
improved
structural
complexity.
Progress
Potential
Biomineralized
engineered
offer
approaches
increasing
sustainability
processes.
is
constrained
important
limitations,
ability
Fungal
scaffolds,
fungi
bacteria,
achieve
much
higher
microorganisms
than
what
has
been
reported
ELMs.
Further,
permit
manufacturing
architectures,
such
inspired
structure
osteonal
bone.
Mycelium
have
use
Graphical
Abstract
Advances in Colloid and Interface Science,
Journal Year:
2024,
Volume and Issue:
324, P. 103095 - 103095
Published: Jan. 28, 2024
Direct
ink
writing
(DIW)
stands
as
a
pioneering
additive
manufacturing
technique
that
holds
transformative
potential
in
the
field
of
hydrogel
fabrication.
This
innovative
approach
allows
for
precise
deposition
inks
layer
by
layer,
creating
complex
three-dimensional
structures
with
tailored
shapes,
sizes,
and
functionalities.
By
harnessing
versatility
hydrogels,
DIW
opens
up
possibilities
applications
spanning
from
tissue
engineering
to
soft
robotics
wearable
devices.
comprehensive
review
investigates
applied
hydrogels
its
multifaceted
applications.
The
paper
introduces
diverse
range
printing
techniques
while
providing
thorough
exploration
hydrogel-based
printing.
investigation
aims
explain
progress
made,
challenges
faced,
trajectories
lie
ahead
manufacturing.
fundamental
principles
underlying
are
carefully
examined,
specifically
focusing
on
rheological
attributes
parameters,
prompting
survey
wide
variety
materials.
These
encompass
both
natural
synthetic
variations,
all
which
can
be
effectively
harnessed
this
purpose.
Furthermore,
explores
latest
biomedical
areas,
primary
focus
engineering,
wound
dressing,
drug
delivery
systems.
document
not
only
consolidates
existing
state
within
context
but
also
charts
avenues
further
research
breakthroughs.
Materials & Design,
Journal Year:
2024,
Volume and Issue:
245, P. 113249 - 113249
Published: Aug. 14, 2024
Concrete
has
been
a
material
of
choice
when
it
comes
to
building
materials
for
decades.
However,
concrete
number
challenges
in
which
major
challenge
being
microcracking
leading
excess
damage
and
wastes.
The
development
advancement
self-healing
technology
throughout
the
past
decade
have
seen
popular
use
immobilization
as
way
protecting
bacteria
from
harsh
environments
found
cementitious
materials.
This
paper
reviews
used
immobilization,
categorising
into
organic
inorganic
materials,
investigates
various
techniques
immobilize
polymeric
structures
porous
study
evaluates
key
findings
literature
surrounding
methods
well
highlighting
possible
alternative
sustainable
including
waste/by-product
resources.
It
was
that
were
superior
terms
mechanical
properties,
with
nanomaterials
producing
highest
crack
closure
1.20
mm.
Various
efficiency
tested
comparing
microencapsulation,
vacuum
impregnation
adsorption
methods.
Further
studies
are
needed
understand
relationship
between
carrier
matrix
explore
uniformly
distributing
matrix.
Chem & Bio Engineering,
Journal Year:
2024,
Volume and Issue:
1(7), P. 568 - 592
Published: June 5, 2024
Microorganisms,
serving
as
super
biological
factories,
play
a
crucial
role
in
the
production
of
desired
substances
and
remediation
environments.
The
emergence
3D
bioprinting
provides
powerful
tool
for
engineering
microorganisms
polymers
into
living
materials
with
delicate
structures,
paving
way
expanding
functionalities
realizing
extraordinary
performance.
Here,
current
advancements
microbial-based
3D-printed
are
comprehensively
discussed
from
material
perspectives,
covering
various
techniques,
types
used,
key
parameters
selection
criteria
polymer
bioinks.
Endeavors
on
applications
printed
fields
energy
environment
then
emphasized.
Finally,
remaining
challenges
future
trends
this
burgeoning
field
highlighted.
We
hope
our
perspective
will
inspire
some
interesting
ideas
accelerate
exploration
within
to
reach
superior
solutions
challenges.
IntechOpen eBooks,
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 28, 2024
The
cement
and
concrete
industries
face
significant
challenges
in
decarbonization
due
to
escalating
demand
driven
by
rapid
urbanization,
population
growth,
infrastructure
restoration
needs.
Cement
production
alone
accounts
for
8%
of
global
anthropogenic
CO2
emissions,
underscoring
the
urgency
exploring
pathways
achieve
net-zero
emissions
these
sectors.
With
over
120
nations
committing
targets
2050,
a
comprehensive
examination
emerging
carbon-saving
technologies
is
imperative.
While
several
promising
innovations
are
nascent
stages,
rigorous
life
cycle
assessments
essential
determine
their
potential
carbon
reduction.
Practical
strategies
achieving
objectives
UN
sustainability
goals
involve
embracing
circular
economy
principles,
harnessing
diverse
by-product
sources,
fostering
stakeholder
engagement,
technological
innovation.
An
efficiency
approach
that
integrates
advancements
materials
science,
alternative
fuels,
sector-wide
efficiencies
crucial
success.
This
assessment
identifies
technologies,
highlights
knowledge
gaps,
underscores
importance
further
research,
offers
recommendations
implementing
best
practices
on
path
net
zero.
Cell Reports Physical Science,
Journal Year:
2024,
Volume and Issue:
5(8), P. 102098 - 102098
Published: July 9, 2024
Cement-free
and
cyanobacteria-based
living
building
materials
(LBMs)
can
be
manufactured
using
microbially
induced
calcium
carbonate
(CaCO3)
precipitation
(MICP)
technology,
which
is
regarded
as
eco-friendly
because
of
the
absence
CO2
gas
emissions
during
manufacturing
process.
Here,
we
report
that
photosynthetic
filamentous
cyanobacterium
Leptolyngbya
boryana
GGD
precipitate
substantial
amounts
CaCO3
with
biofilm
formation
in
our
optimized
medium.
Compared
to
coccoid
cells,
cells
have
an
extensive
surface
area
efficiently
agglomerate
granular
fill
void
spaces
by
forming
bridging
microstructures
along
precipitated
LBMs,
enhance
mechanical
properties
LBMs.
Regenerative
LBMs
possibly
reconstructed
old
from
parent
without
addition
strain
cells.
The
physicochemical
hold
promise
valuable
components
for
maintaining
structural
integrity
