IP Library Granted Patent US 12,631,647
Granted Patent B2
US 12,631,647 · App. 17/880,398 · Granted May 19, 2026

Lock and key templation of molecularly imprinted polymer for small molecule recognition

Inventors: Kelly Xia (Berkeley, CA); Stephen Matthew Meckler (Campbell, CA); Gabriel Iftime (Newark, CA); Mahati Chintapalli (Mountain View, CA); Jerome Unidad (Paris, FR)
Assignee: GENESEE VALLEY INNOVATIONS, LLC
G01N33/58C08F220/06G01N21/6428G01N33/94G01N2021/6439G01N2600/00
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Quick Facts
Patent No.
US 12,631,647
App. No.
17/880,398
Filed
Aug 3, 2022
Granted
May 19, 2026
Kind
B2
Art Unit
1797
USPC
436/93
Abstract

A composition of matter has a molecularly imprinted polymer having templated pores, and a reactive material occupying a portion of each pore, the reactive material selected to react when an analyte material for which the cavities are templated enters the cavities. A method of synthesizing a molecularly imprinted polymer includes arranging monomers around a template molecule having a reactive component and an analyte component, polymerizing the monomers, removing the template molecule, and reintroducing the reactive component of the template molecule. A method of detecting an analyte includes exposing a molecularly imprinted polymer to a fluid, the polymer having templated pores containing a detector material that is reactive to an analyte.

Claims (26)

1 . A composition of matter, comprising:

a molecularly imprinted polymer having templated pores; and

a removable reactive material occupying a portion of each pore, the reactive material selected to react when an analyte material for which the pores are templated enters the pores.

2 . The composition of matter as claimed in claim 1 , wherein the reactive material has a characteristic that changes in a detectable manner in response to the analyte.

3 . The composition of matter as claimed in claim 1 , wherein the templated pores are configured to bind to at least one of the reactive material and the analyte material through one of either steric or electronic effects.

4 . The composition of matter as claimed in claim 1 , wherein the reactive material includes functional groups reactive to the analyte.

5 . The composition of matter as claimed in claim 1 , wherein the reactive material is a detector material.

6 . The composition of matter as claimed in claim 5 , wherein the detector material is 1,2-naphthoquinone-4-sulfonate (NQS), and the analyte is one of the group consisting of: methamphetamine, 3,4-Methylenedioxyl-methamphetamine (MDMA), 4-methylenedioxyl-N-ethylampthetamine (MDEA) ephedrine, and pseudoephedrine.

7 . The composition of matter as claimed in claim 5 , wherein the detector material comprises Fast blue B dye and the analyte comprises tetrahydrocannabinol.

8 . The composition of matter as claimed in claim 1 , wherein the reactive material has a response that is at least one of colorimetric, fluorescent, optical transmission change, or a spectroscopic detectable change.

9 . The composition of matter as claimed in claim 1 , wherein the analyte is a small molecule.

10 . A method of synthesizing a molecularly imprinted polymer, comprising:

arranging monomers around a template molecule having a reactive component and an analyte component;

polymerizing the monomers;

removing the template molecule; and

reintroducing the reactive component of the template molecule.

11 . The method as claimed in claim 10 , wherein arranging the monomers around a template molecule comprises arranging monomers with one of reversible covalent or reversible non-covalent interactions.

12 . The method as claimed in claim 10 , wherein polymerizing the monomers further comprises adding at least one of other monomers and cross-linkers prior to polymerizing the monomers.

13 . The method as claimed in claim 10 , wherein polymerizing the monomers comprises one of radical polymerization, condensation polymerization, and ring opening polymerization.

14 . The method as claimed in claim 10 , wherein removing the template molecule comprises at least one of washing and extraction.

15 . The method as claimed in claim 10 , further comprising washing the polymer after reintroducing the reactive component to remove any excess of the component.

16 . The method as claimed in claim 10 , wherein the template molecule has a first component as 1,2-naphthoquinone-4-sulfonate (NQS), and a second component as one of the group consisting of: methamphetamine, 3,4-Methylenedioxyl-methamphetamine (MDMA), 4-methylenedioxyl-N-ethylampthetamine (MDEA) ephedrine, and pseudoephedrine.

17 . The method as claimed in claim 10 , wherein the template molecule has a first component as Fast blue B dye and a second component as tetrahydrocannabinol.

18 . A method of detecting an analyte comprising exposing a molecularly imprinted polymer to a fluid, the polymer having templated pores containing a detector material that is reactive to an analyte.

19 . The method as claimed in claim 18 , further comprising separating the analyte from the fluid using the molecularly imprinted polymer as a membrane.

20 . The method as claimed in claim 18 , wherein the detector material reacts to the analyte by one of a colorimetric, fluorescent, optical transmission, or spectroscopic change.