A high sensitive glucose sensor based on Ag nanodendrites/Cu mesh substrate via surface-enhanced Raman spectroscopy and electrochemical analysis

Recent Advances in Materials for Enzyme-free Electrochemical Glucose Sensors

“…The technique of using Ag NPs in enzyme-free glucose sensors is being rapidly developed, owing to their great potential for sensing. (12,(29)(30)(31)(32)(33) Arif et al prepared an enzyme-free glucose sensor composed of a metal organic framework (MOF) composite decorated with Ag@TiO 2 nanoparticles. (12) The sensor based on Ag@TiO 2 @ MOF showed a high sensitivity of 0.788 μA μM −1 cm −2 with a linear concentration range of 48 μM-1 mM, a response time of 5 s, and an excellent detection limit of 0.99 μM.…”

Enzyme-free glucose sensors with efficient synergistic electro-catalysis based on a ferrocene derivative and two metal nanoparticles

“…This is also consistent with other reports showing the need to alkaline conditions. 20,21 Fig. S3B † shows maximum peak current responses for Fc-ECG/CuNPs/GE and Fc-ECG/ CoNPs/GE at 25 C. Fig.…”

“…In addition, their function is limited to a strong alkaline environment (usually pH 13.0). 20,21 At present, a considerable number of innovative nanostructures have been reported to improve on these obvious drawbacks and enhance the sensitivity of the sensor systems and render then useable under physiological conditions. 13,22 And part of this development is the push for applications of smart sensors in intelligent wear, sensing human health by detecting the glucose content in sweat.…”

A copper foam-based surface-enhanced Raman scattering substrate for glucose detection

“…Several optical techniques have been developed to detect glucose, such as infrared absorption, laser polarization, dye fluorescence modification, bioimpedance spectroscopy, and thermal emission spectroscopy. Most of these techniques are not molecularly specific and can yield similar results with structurally similar molecules [32][33][34][35][36][37][38]. In order to enhance the detection ability and specificity of biomolecules, the SERS substrate had been functionalized to make it better to adsorb glucose molecules.…”