wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Nanotec 2

Total questions: 13

Worksheet time: 8mins

Name
Class
Date
1.

Organic films of a thickness of just one molecule

a)

Quatum dots

b)

Lagmuir films

c)

Electrodepositions

d)

nanocomposites

2.

This is an exmaple of...

a)

Nanoparticle in nature

b)

Nanocomposites

c)

Pandas food

d)

Chemistry in action

3.

additional advantage of the LB technique is that monolayers can be deposited on almost any kind of...

(a)  

4.

Wich option is not related to langmuir blogget

a)

precise control of the monolayer thickness,

b)

homogeneous deposition of the monolayer over large areas

c)

the possibility to make multilayer structures with varying layer composition

d)

the size reflect the color

5.

Polymer + nanoparticle=

a)

Qutum dot

b)

Mesoporous

c)

Nanocomposite

d)

LB monolayer

6.

Why nanocomposites are so multifuctional

a)

high surface to volume ratio

b)

increased ductility with no decrease of strength

c)

Scratching resistance

d)

Light transmission characteristics particle size dependent

e)

All of the above

7.

One lmitations present it in nanocomposites is?

a)

Ductility

b)

Have a matrix

c)

Nanoclay modification of polymers such as polyamides, could reduce impact performance.

d)

cant be used for intramuscular or subcutaneous applications

8.

What are quatum dots

(a)  

9.

Quatum dots are?

a)

semiconductors

b)

complicated nano particle

c)

hating quatum physics

d)

good conductors

10.

Quantum Confinement is

a)

really heated quetum physics

b)

Help me

c)

the spatial confiment of electrons in one dimesion within the material

d)

the spatial confinement of electron-hole pairs (excitons) in one or more dimensions within a material

11.

Absorption and emission occur at specific wavelengths, which are related to QD size

a)

True

b)

False

12.

Are quatum dots photostable?

a)

Yes

b)

No

c)

i will know it later

13.

The surface of QDs can be functionalized with affinity ligands: antibodies, peptides, or small-molecule drug inhibitors, to target specific types of cells for in vivo or in vitro

a)

True

b)

False