Table 1.

Summary of some review papers most pertinent to non-invasive glucose sensing technologies.

Author	Main Topics	Year	Ref.
Shokrekhodaei et al.	Review of non-invasive glucose measurements methods based on glucose intrinsic properties and blood/tissue characteristics to light, and respiration acetone analysis	2020	[15]
Zhang et al.	Review of non-invasive glucose measurement methods based on electromagnetic waves	2019	[16]
Villena Gonzales et al.	Review of invasive to minimally invasive and non-invasive glucose measurement methods, available commercial devices, accuracy assessment standards, the latest glucose sensors under development, and glucose estimation informatics.	2019	[5]
Jernelv et al.	Review of non-invasive continuous glucose measurement methods based on optical technologies, challenges facing these techniques, and current research status and prospects.	2019	[13]
Delbeck et al.	Overview of glucose measurement methods with a focus on Raman, mid-infrared, and near-infrared spectroscopies studies. Review of studies on photoplethysmography technology accompanies time resolution, wavelength dependence, and spatial resolution.	2019	[17]
Bruen et al.	Review of non-invasive continuous glucose measurement methods based on the estimation of glucose concentration in other physiological solutions rather than blood.	2017	[10]