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US 2024/0402159 A1Published application
Method for detecting analytes with metal-organic frameworks
OwnerLing Zang, Rana Dalapatiinventors
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Abstract
Described are PDI-based and UiO-66-based cationic metal-organic frameworks methods for detecting perfluoroalkyl and polyfluoroalkyl substances.
Claims44
A composition comprising at least one metal-organic framework (MOF), or salt thereof, the metal-organic framework comprising:
- a plurality of metal-containing secondary building units (SBU) linked together by one or more bridging ligands,
- wherein said bridging ligands, or salts thereof, have a formula (I):
- wherein
- R1, at each occurrence, is independently hydrogen, C1-8alkyl, halo, —O(R1a), —N(Rx)m, or —S(O)2OH;
- R2, at each occurrence, is independently hydrogen, C1-8alkyl, —O(R1a), or C1-8alkyl-OH and wherein every R2 is not hydrogen;
- G1, at each occurrence, is independently phenyl, a 6- to 12-membered aryl, or a 5- to 12-membered heteroaryl, wherein the 5- to 12-membered heteroaryl is optionally substituted at a heteroatom with hydrogen or C1-8alkyl;
- R1a, at each occurrence, is independently hydrogen or C1-8alkyl, or phenyl;
- Rx, at each occurrence, is independently hydrogen or C1-3alkyl;
- and
- m=2-3.
7 more elements
A method for detecting or removing perfluoroalkyl or polyfluoroalkyl substances in a sample, the method comprising:
- contacting the sample with a composition comprising at least one metal-organic framework (MOF), or salt thereof, having a plurality of metal-containing secondary building units (SBU) linked together by one or more bridging ligands,
- wherein said bridging ligands, or salts thereof, have a formula (I):
- wherein
- R1, at each occurrence, is independently hydrogen, C1-8alkyl, or halo;
- R2, at each occurrence, is independently hydrogen, C1-8alkyl, —O(R1a), or C1-8alkyl-OH;
- and
- R1a, at each occurrence, is independently hydrogen or C1-8alkyl;
- and
- detecting a change in fluorescence intensity.
6 more elements
A method for detecting or removing perfluoroalkyl or polyfluoroalkyl substances in a sample, the method comprising:
- contacting the sample with a composition comprising at least one metal-organic framework (MOF), or salt thereof, having a plurality of metal-containing secondary building units (SBU) linked together by one or more bridging ligands,
- wherein said bridging ligands, or salts thereof, have a formula (II):
- wherein
- R10, at each occurrence, is independently hydrogen or C1-8alkyl;
- and
- G10 is independently a 6- to 12-membered aryl or a 5- to 12-membered heteroaryl.
- detecting a change in fluorescence intensity.
4 more elements
Dependencies are inferred from the claim text.