Towards a Smart Encapsulation System for Small-Sized Electronic Devices: A New Approach

Table 4

Diffusion coefficients of glucose molecules through test discs of various blends at 20°C; 𝐷_glucose in 0.1 M sodium phosphate buffer at 25°C (pH 6.7): 0.72 * 10⁻⁵ cm²/s [37].

Measured parameter	Specimen composition
	PVC (m)*; (70 : 30); (NaCl : PVC)	PS (m)*; (65 : 30); (NaCl : PS)	L 210 (m)*; (40 : 60); (NaCl : PLA)	L 210 (p)*; (70 : 30); (NaCl : PLA)	RG 504 (p)*; (70 : 30); (NaCl : PLGA)
𝑛 (test runs)	3	3	3	3	3
𝐷 (glucose) (10^−10 * m^2s^−1)	9.40	15.30	61.30	12.30	20.90
SD 𝐷 (glucose) (10^−10 * m^2s^−1)	3.70	4.50	4.50	1.90	17.80

∗(m) = mixed manually/(p) = precipitated.