IP Library › Granted Patent US 9,844,230
Granted Patent B2
US 9,844,230 · App. 14/327,509 · Granted Dec 19, 2017

Molecularly imprinted polymers selective for nitrosamines and methods of using the same

Inventors: Sumita Bhattacharyya (Lund, SE); Kevin McAdam (Southampton, GB); Anthony Rees (Furulund, SE); Börje Sellergren (Schwerte, DE); Christine Widstrand (Lund, SE)
Assignee: BRITISH AMERICAN TOBACCO (INVESTMENTS) LTD
A24B15/245A24B15/24A24D3/02A24D3/067A24D3/08B01D15/3852B01J20/268C08F222/14G01N33/0098
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Quick Facts
Patent No.
US 9,844,230
App. No.
14/327,509
Granted
Dec 19, 2017
Kind
B2
Abstract

A class of molecularly imprinted polymers that specifically recognizes and binds to nitrosamines members of which class are useful, for example, in analysis and separation of nitrosamines from biological fluids. Such molecularly imprinted polymers are also useful in methods of treating and manufacturing tobacco products and materials.

Claims (17)

1. A molecularly imprinted polymer selective for at least one tobacco-specific nitrosamine, wherein said molecularly imprinted polymer is obtained using a functional or structural analogue of a tobacco-specific nitrosamine as a template, and includes an imprint of the functional or structural analogue of a tobacco-specific nitrosamine.

2. The molecularly imprinted polymer according to claim 1 , wherein said at least one tobacco-specific nitrosamine is derived from nicotine, nornicotine, anabasine or anatabine.

3. The molecularly imprinted polymer according to claim 1 , selective for the nicotine-derived nitrosamine NNAL.

4. The molecularly imprinted polymer according to claim 1 , wherein the polymer has been prepared using an isosteric analogue of a tobacco-specific nitrosamine as a template.

5. The molecularly imprinted polymer according to claim 1 , wherein the polymer has been prepared using 4-(methylpropenyl-amino)-1-pyridin-3-yl-butan-1-ol as a template.

6. The molecularly imprinted polymer according to claim 1 , wherein the polymer has been prepared using pyridine carbinol as a template.

7. The molecularly imprinted polymer according to claim 1 , wherein the polymer has been prepared using a compound that includes a substructure of the tobacco specific nitrosamine.

8. A kit, comprising:

the molecularly imprinted polymer according to claim 1 ; and

instructions for using the molecularly imprinted polymer to perform at least one of detecting, quantifying, and separating nitrosamines in a sample.

9. A smoking article, comprising:

a smoking material; and

the molecularly imprinted polymer according to claim 1 , selective for at least one tobacco-specific nitrosamine found in the thermall decomposition products of the smoking material.

10. The smoking article according to claim 9 , wherein the molecularly imprinted polymer is selective for at least one volatile nitrosamine found in the vapor phase of the thermal decomposition products of the smoking material.

11. A smoke filter, comprising: filter material;

and the molecularly imprinted polymer according to claim 1 .

12. The smoke filter according to claim 11 , wherein the molecularly imprinted polymer is selective for at least one volatile nitrosamine found in the vapor phase of the thermal decomposition products of tobacco or a tobacco substitute.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 28, 2014
From: BHATTACHARYYA, SUMITA; MCADAM, KEVIN; REES, ANTHONY; SELLERGREN, BÖRJE; WIDSTRAND, CHRISTINE
To: MIP TECHNOLOGIES AB; BRITISH AMERICAN TOBACCO (INVESTMENTS) LTD
Reel/Frame 033402/0851 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 28, 2014
From: MIP TECHNOLOGIES AB
To: BRITISH AMERICAN TOBACCO (INVESTMENTS) LTD
Reel/Frame 033403/0014 →
Continuity (4)
Continuation 11604003 · Nov 21, 2006
Continuation PCTSE2005000773 · May 24, 2005
Provisional Application 60573337 · May 24, 2004
Related Publication 20140332015A1 · Nov 13, 2014