Environmental Technology & Innovation,
Год журнала:
2022,
Номер
28, С. 102710 - 102710
Опубликована: Июнь 4, 2022
Reusability
of
masks
is
a
rising
environmental
concern.Community
face
present
more
eco-friendly
option
as
they
can
be
washed
and
reused
several
times.The
potential
reuse
single
use
medical
also
interest.In
this
work,
the
impact
20
wash
cycles
(at
60
•
C
with
detergent
air-drying)
on
particle
filtration
efficiency
(particle
size
range
0.1-6.5
µm)
breathability
was
studied.With
regards
to
performance
new
masks,
mask
had
31
Pa.cm
-2
whilst
it
ranged
from
9
59
for
community
masks.Additionally,
3
µm
particles,
99%
28%-89%
masks.Mixed
fabric
were
able
maintain
their
up
washing
cycles.The
100%
cotton
less
breathable
but
higher
because
shrinkage
fabric.The
its
sizes
≥
µm,
however
significantly
reduced
submicron
particles.This
presence
caused
loss
electrostatic
charges
led
decrease
collection
by
forces.All
things
considered,
both
times,
performances
in
terms
(for
that
remain
globally
little
changed
after
washing.
ACS Nano,
Год журнала:
2023,
Номер
17(3), С. 1739 - 1763
Опубликована: Янв. 23, 2023
The
outbreak
of
COVID-19
provided
a
warning
sign
for
society
worldwide:
that
is,
we
urgently
need
to
explore
effective
strategies
combating
unpredictable
viral
pandemics.
Protective
textiles
such
as
surgery
masks
have
played
an
important
role
in
the
mitigation
pandemic,
while
revealing
serious
challenges
terms
supply,
cross-infection
risk,
and
environmental
pollution.
In
this
context,
with
antivirus
functionality
attracted
increasing
attention,
many
innovative
proposals
exciting
commercial
possibilities
been
reported
over
past
three
years.
review,
illustrate
progress
textile
filtration
pandemics
summarize
recent
development
antiviral
personal
protective
purposes
by
cataloging
them
into
classes:
metal-based,
carbon-based,
polymer-based
materials.
We
focused
on
preparation
routes
emerging
textiles,
providing
forward-looking
perspective
their
opportunities
challenges,
evaluate
efficacy,
scale
up
manufacturing
processes,
expand
high-volume
applications.
Based
conclude
ideal
are
characterized
high
efficiency,
reliable
effect,
long
storage
life,
recyclability.
expected
processes
should
be
economically
feasible,
scalable,
quickly
responsive.
Frontiers in Cellular and Infection Microbiology,
Год журнала:
2022,
Номер
12
Опубликована: Март 21, 2022
Background
Since
the
outbreak
of
COVID-19,
a
series
preventive
and
control
measures
in
China
have
been
used
to
effectively
curb
spread
COVID-19.
This
study
aimed
analyze
epidemiological
characteristics
Mycoplasma
pneumoniae
(
MP
)
Chlamydia
CP
hospitalized
children
with
acute
respiratory
tract
infection
during
COVID-19
pandemic.
Methods
IgM
antibody
were
detected
all
due
Children’s
Hospital
Affiliated
Zhejiang
University
from
January
2019
December
2020.
These
data
compared
between
2020
based
on
age
month.
Results
The
overall
detection
rate
was
significantly
lower
than
that
:
21.5%
vs
32.9%,
P
<0.001;
0.3%
0.9%,
<0.001).
found
4-fold
reduction
number
positive
for
7.5-fold
cases
concentrated
aged
>1
year
old.
In
2019,
more
commonly
3
years
or
older
younger
children.
2020,
higher
reached
peak
3-
6-year
group
(35.3%).
predominantly
6
rates
4.8%
2.6%,
respectively.
Meanwhile,
July,
August
September,
47.2%,
46.7%
46.3%,
Nevertheless,
February
apparently
decreased
those
2019.
evenly
distributed
throughout
year,
0.5%-1.6%
0.0%-2.1%
Conclusions
A
SARS-CoV-2
pandemic
can
not
only
contain
but
also
sharply
improve
other
atypical
pathogens,
including
.
Scientific Reports,
Год журнала:
2023,
Номер
13(1)
Опубликована: Янв. 28, 2023
Abstract
Recently,
wearing
facemasks
in
public
has
been
raised
due
to
the
coronavirus
disease
2019
epidemic
worldwide.
However,
performance
and
effectiveness
of
many
existing
products
have
significant
concerns
among
people
professionals.
Therefore,
greater
attempts
focused
recently
increase
efficacy
these
scientifically
industrially.
In
this
respect,
doping
or
impregnating
facemask
fabrics
with
metallic
substances
nanoparticles
like
silver
proposed.
So,
present
study,
we
aimed
sonochemically
coat
on
non-woven
Spunbond
substrates
at
different
sonication
times
concentrations
develop
antibacterial
antiviral
facemask.
The
coated
were
characterized
using
Field
Emission
Scanning
Electron
Microscope,
Energy
Dispersive
X-Ray,
X-ray
diffraction,
Thermogravimetry
analysis.
amount
released
from
was
measured
by
atomic
absorption
spectroscopy.
filtration
efficiency,
pressure
drop,
electrical
conductivity
samples
also
investigated.
activity
evaluated
against
Escherichia
coli
Staphylococcus
aureus
.
Cellular
viability
assessed
MTT
brine
shrimp
lethality
tests.
results
revealed
that
higher
precursor
result
a
more
stable
coating,
larger
particle
size,
wider
size
distribution,
lower
content
silver.
Coated
enhanced
efficiency
(against
nanosize
particles),
desired
without
cytotoxicity
toward
HEK
293
cells
Artemia
nauplii.
As
result,
could
find
potential
applications
development
for
protection
pathogenic
entities.
