COMPOSITE MATERIAL AND DEVICE FOR QUANTITATIVE ASSESSMENT OF LACTATE CONTENT IN PHYSIOLOGICAL FLUIDS Russian patent published in 2025 - IPC G01N27/327 C12Q1/26 B82Y5/00 B82Y30/00 G01R19/00 

FIELD: biotechnology; medicine.

SUBSTANCE: disclosed is a composite material for a device for quantifying lactate content in physiological fluids, comprising polymer matrix (4), nanomaterial inclusions and lactate oxidase enzyme inclusions (3), immobilized in polymer matrix (4), wherein polymer matrix (4) contains a polymer modified with a redox-active compound. Polymer used is bovine serum albumin, the redox-active compound used is neutral red covalently bonded to said polymer, and the nanomaterial is single-wall carbon nanotubes (2). Also disclosed is a device for quantitative assessment of lactate content in physiological fluids.

EFFECT: group of inventions provides an increase in the upper limit of the range of determined concentrations of lactate in physiological fluids to 57 mM, as well as reduced time spent on a single measurement.

3 cl, 5 dwg, 2 tbl, 3 ex