An effective metal-organic framework-based electrochemical non-enzymatic glucose sensor

•Non-enzymatic glucose sensor based on MOF for long-term glucose monitoring.•Excellent electrocatalytic behaviour of Ni-BDC-NH2 towards oxidation of glucose.•Ni-BDC-NH2 displayed a lower detection limit, higher stability and sensitivity.•NH2 functional group has facilitated the electron transfer during glucose detection.•Molecular sieve effect in the MOF enabled the selective diffusion of glucose.