Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Physical Pharmacy > Mesophase > Flashcards

Mesophase Flashcards

1
Q

Intermediate between 2 phases

A

Mesophase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Characteristics of Molecules to form Mesophase

A

Rigid
Organic
Strong dipoles and easily polarized groups
Elongated & rectilinear in shape

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Intermediate between Liquid and Solid

A

Liquid Crystalline States

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Types of Liquid Crystals

A
  1. Lyotropic
  2. Thermotropic
    a. Smectic
    b. Nematic
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Formed from action of solvents on solids

A

Lyotropic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Forms of Lyotropic

A

Hexagonal
Cubic
Lamellar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Form when substances are heated

A

Thermotropic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Soaplike or grease like
Mobile in 2 direction, rotate in 1 axis

A

Smectic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Application of Smectic

A
  • Solubilization of water insoluble materials
  • Present in emulsion
  • Most pharmaceutical significant
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Threadlike
Mobile in 3 direction, rotate in 1 axis
SImplest type of liquid crystal

A

Nematic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Application of Nematic

A

Developing display systems - sensitivity to electric fields

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Forms of Nematic

A

Cholesteric – special type, chiral nematic
Cholesteryl benzoate – first synthesized liquid crystal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Intermediate between Liquids and Gases

A

Supercritical Fluids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Supercritical fluids is formed from the ____ state by application of ____ and ____ that exceeds the of ____ gas

A

Supercritical fluids is formed from the gaseous state by application of temperature and pressure that exceeds the of critical point of gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Most used supercritical fluid

A

Carbon dioxide for decaffeination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Pharmaceutical use of Supercritical fluids

A

Extraction
Purification
Formation of micro and nanoparticles

Physical Pharmacy (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions