Transcript The Application of Nanotechnology in Our Daily Life

The Application of
Nanotechnology in
Our Daily Life
Group members：陈鑫、陆艳、王蓉融
Different aspects：
Clothing
Food
Housing
Transportation
Else
Dust 、sweat 、sebum（皮脂）and
other secretion（分泌物）may stick to
our clothes .These sewage may cause
the development of different kinds of
microbes(微生物) which will give off
bad smell and finally lead to dermatitis
（皮炎） and other skin diseases.
Antibacterial shirt
If we add antibacterial agent (produced
by nanotechnology) into the dye, the
antibacterial agent sticking to the
c l o t h e s w i l l p l a y i t ’s r o l e , t h e n
antibacterial clothes are made.
How does it work？Let’s see：
Antibacterial cloth
There are two methods widely used:
1、Destroy the structure of bacterial
or virus’ protein . Usually precious
metals such as silver can do this by
exchange of molecules. Since nanomaterials are very small , they can
diffuse easily and act efficiently so
they can used as antibiotic(抗生素，
抗菌素).
2、Use photoelectric material. For
example, TiO2 can produce holes
and electronics when activated by
light with specific wavelength, this
will lead to ionization（电离化） of
protein tissue ，and achieves the
sterilizing（杀菌）effect.
thermal underwear
Tow el : extremel y soft、 good
w ater absorption 、 ne ver color
fading、easy wash、long duration、
good quality of decontamination.
Some nanoparticles have strong
ability of absorbing infrared ray from
our body.
So we can add these particles into
clothing fibers to improve the ability
of keeping warm of our clothes.
Nanotechnology brings new foods to us
With nanotechnology , we can mash cellulose（纤维素） into
monosaccharide（单糖）、glucose（葡萄糖） and cellobiose （纤维
二糖）, thus many organics can be used as nutritive substance.
With nanotechnology, we can manipulate some nucleotides (核苷
酸) in DNA or even rearrange several atoms to produce new genetic
foods.
Pollen（花粉） in nano-scale
Genetically Modified Food
Wo~~，
energy is
not enough！
New decorated houses are filled with
harmful gas such as formaldehyde(甲
醛) or methylbenzene（甲苯）.some
of them are blastomogens (致癌物质).
Sun
HCHO
germ
ultraviolet radiation5%!!!
C6H6
general nano-TiO2
While nanomaterials can degradation
those harmful gas in the air，such as
nano-TiO2, it has high degradation
rate and it can turn those harmful gas
into CO2、H2O and organic acid.
喷雾剂甲醛降解曲线
60
降解率/%
50
40
30
20
TiO2喷雾剂降解室内甲醛
10
0
0
5
10
15
降解时间/h
20
25
Traditional paint can’t maintain for a long time and can not be washed
too often . While newly produced paint with nanotechnology has good
qualities . The painted wall can be washed for ten thousand times or
even more which has improved by ten times.
Glass and ceramic tile(瓷砖) painted with nano-coating can be selfcleaning. With nano-materials’ catalysis , any particles sticking to the
glass or ceramic tile including greasy dirt and bacterial will turn into
gases or something that can be wiped easily under the sunshine.
Newly nano-coating-liquid wallpaper
Nano-coating
Use nano-silver composite to
p r o d u c e t h e c a vi t y o f w a s h i n g
machine can enhance the tenacity、
prolong the duration and improve the
resistance of washing machine. And it
also has the ability of self-cleaning.
nano washing machine
Like pallet 、rack、drawer、
doorknob which might touch
our body or foods were made
from materials comprising of
nano-antibacterial material.
Thus it could prevent bacterium
from staying in the refrigerator.
Nano antibacterial refrigerator
Nano anti skid material on road
Merits:
1、water proof;
2、resistance to corrosion ;
3、fire resistance;
4、anti skid , safety;
5、reduce noises of vehicles;
6、high adhesive force,
easy to wash
Stealth aircraft: can not be detected easily by radar
1、Body stealth：
special geometrical shape to reduce
the reflection of radar；
wave absorbing paint-coat；
2、Engine stealth：
add cooling mechanism to the gas
vent in order to reduce the leak of
infrared.
3、Electronic stealth：
use passive radar instead of active
radar and communication apparatus to
keep electronic silence.
•
•
Reasons：
nano-particles are far smaller than
that of the infrared and radar’s
wavelength. Supersonic wave can
pass through them with little or
even no reflection.
Nano-particles have high specific
surface, they can absorb infrared
and electromagnetic wave very
efficiently so infrared detector or
radar receiver could just receive
little reflective wave.
soaking seed machine
Nokia Morph
Nano-film used to reduce
radiation of mobile phone
There are still many applications of nanotechnology in
our life. We only collected small part of them here, and
since time is limited we have to stop here now…