Table 1.

Overview of the sensor devices which have been developed for specific use in biotechnology applications.

Name	Diameter	Measured variables	Derived variables	References
Sens-o-sphere	7.9 mm	•Temperature	•Spatially resolved variables	[57], [69]
smartCAPS	25 mm	•Single variable quantified (temperature, acceleration, pH, conductivity or pressure)	•Spatially resolved variables •Hydrodynamic signature	[42]*
				[25], [70]
Bio-capsule	44 mm	•Potassium concentration, •Sodium concentration •Conductivity •pH •Glucose concentration	•Spatially resolved variables	[43], [60]
bPod	60 mm	•Dissolved oxygen	•Spatially resolved variables	[44]*
Sensor particle	52.8 mm**	•Temperature •Pressure •Acceleration •Magnetic field	•Spatially resolved variables •Circulation time •Axial position •Axial velocity	[41], [61], [71]
FermSense 3D	45 mm	•Temperature •pH •Acceleration •Pressure	•Spatially resolved variables •Flow patterns	[55], [66]*

^*Not from peer reviewed literature.

^**Volume equivalent particle diameter (cylinder).