Source: Purdue University

A fiber-optic sensor, created by a team of Purdue University researchers, is capable of measuring oxygen intake rates, which could have broad applications ranging from plant root development to assessing the effectiveness of chemotherapy drugs.

The self-referencing optrode was developed in the lab of Marshall Porterfield, an associate professor of agricultural and biological engineering. It is non-invasive, can deliver real-time data, holds a calibration for the sensor's lifetime and doesn't consume oxygen like traditional sensors that can compete with the sample being measured, Porterfield noted.

Plant biologists might be interested in the sensor to measure oxygen intake of a genetically engineered plant's roots to determine its ability to survive in different types of soil.

Original press release