Methods and compositions to restore function to acidified T cells are provided. The methods comprise administering urease to the T cells. Compositions comprise urease.

Methods and compositions to restore function to acidified T cells are provided. The methods comprise administering urease to the T cells. Compositions comprise urease.

The present subject matter provides urea biosensors as well as compositions, devices, and methods comprising such biosensors.

Disclosed is a urea biosensor that is stable at ambient temperature, and methods of making thereof.

Disclosed are multi-enzyme biosensors that are stable at ambient temperature, and methods of making thereof.

Disclosed herein are compositions for permeable outer diffusion control membranes for creatinine and creatine sensors and methods of making such membranes.

The present disclosure relates to electrochemical sensors for measuring creatinine and creatine in a patient's blood. More particularly, the disclosure relates to compositions and methods for improving calibration accuracy of electrochemical sensors used for measuring creatinine and creatine.

The disclosure relates to electrochemical sensors for measuring creatinine and creatine in a patient's blood. More particularly, the disclosure relates to compositions and methods for improving measurement accuracy of electrochemical sensors used for measuring creatinine and creatine.

The present invention relates to a small urea sensor module, configured such that a urease-immobilized insoluble porous support, in which urease is immobilized on a porous support made of a natural polymer such as silk fibroin, etc. or a synthetic polymer, is mounted in a fluidic chamber and also such that the electrode surface of a three-electrode strip is exposed to the bottom surface of the chamber. This urea sensor is essential for the evaluation of the regenerated solution from a portable peritoneal dialysis fluid regeneration system and has advantages such as portability, reproducibility, mass productivity and simplicity, which will greatly contribute to disease management of patients with chronic renal disease.

An arrangement, a method, and a measurement indicator, configured to measure urea in a milk sample of an animal (100). The arrangement includes a reference indicator, impregnated with a halochromic substance configured to adjust colour, based on a level of hydroxide ions of a first sub milk sample; a measurement indicator, impregnated with the halochromic substance of the reference indicator, and prepared with an enzyme configured to convert urea of a second sub milk sample, into at least one chemical substance, which in turn will influence the level of hydroxide ions of the second sub sample; a sensor configured to capture a first image of the reference indicator, and a second image of the measurement indicator; and a control unit configured to determine colour difference between the images; and configured to convert the determined colour difference into urea amount in the milk sample.