Ion-detecting sensors comprising plasticizer-free copolymers

Details Ion-detecting sensors comprising plasticizer-free copolymers Ion-detecting sensors comprising plasticizer-free copolymers

2007-04-10

2007-04-10

Soderquist, Arlen (Department: 1743)

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

C204S416000, C204S418000, C205S781500, C422S051000, C422S082010, C422S082020, C422S082050, C422S082060, C422S082070, C422S082080, C422S082090, C422S082110, C436S073000, C436S074000, C436S079000, C436S080000, C436S081000, C436S082000, C436S083000, C436S084000, C436S149000, C436S150000, C436S151000, C436S169000, C436S172000, C560S130000, C560S138000, C564S123000, C564S152000, C564S155000, C564S192000

Reexamination Certificate

active

10384097

ABSTRACT:
Ion-detecting sensors for detecting a target ion in a sample are provided. The sensor comprises a plasticizer-free copolymer comprised of polymerized units of methacrylate monomers having pendent alkyl groups of different length and a functionalized ionophore of said ion, wherein at least a portion of the functionalized ionophore is grafted into the copolymer through covalent linkages. Sensors may comprise ionophores such as hydrophilic crown ethers or functionalized derivative of 3-oxapentandiaminde-type ionophores. This invention further provides sensors for detecting target ions in a sample, comprising plasticizer-free molecularly imprinted polymers, wherein the polymers comprise polymerized units of methacrylate monomers having pendent alkyl groups of different length and a functionalized ionophore of said ion. In particular, a magnesium ion sensor comprising a functionalized derivative of a 3-oxapentandiaminde-type calcium ion-selective ionophore is provided. Sensors of this invention include carrier-based ion-selective electrodes or optodes such as thin film ion-specific optodes, particle-based optodes, or bulk optodes.

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