Fig 5. Thermomechanical method for gelation temperature detection of 15% gelatin, measured by sensor integrated on a) 500 μm by 500 μm (sensor #1), and b) 5 mm by 5 mm (sensor #2) SiN membranes.

The temperature profile represents the first order approximation of heat transfer through the material. The gelation temperature is measured during either heating or cooling cycle depending on the sensor type. The gelation occurs when the measurement deviates from the temperature profile due to strain applied to the sensor.