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Diabetes mellitus is an epidemic disease that it has became a worldwide public health problem. Thus, blood glucose monitoring has attracted extensive attention. Here, we report a nanosensor based on inner filter effect (IFE) between upconversion nanoparticles (UCNPs) and squaric acid (SQA)-iron(III) for the highly sensitive and selective detection of glucose levels in human serum. In this assay, GOx-catalyzed...
Sensitive glucose detection enables indirect blood glucose sensing through easily accessible biofluids such as saliva and sweat. In this work, silver coated gold nanorods (Au@Ag NRs) were synthesized and used to prepare plasmonic substrate for surface-enhanced Raman spectroscopy (SERS) to leverage highly sensitive detection of glucose for quantitative analysis. By synthetically manipulating of gold...
A simple, efficient and versatile biosensing platform capable of the multiplexed detection for glucose, lactate and choline was developed by the integration of bipolar electrochemistry and electrochemiluminescence (ECL) imaging. The sensing bipolar electrodes (BPEs) were simply modified via a one-step method adaptable to different enzymes. The biorecognition event happening between the substrate and...
A facile and rapid post-synthetic strategy was proposed to prepare a glycine functionalized MIL-53(Fe), namely glycine-MIL-53(Fe), by a simple mixing of water dispersible MIL-53(Fe) and glycine. The FT-IR, SEM, XRD and zeta potential were used to characterize the glycine-MIL-53(Fe). The result showed that glycine post-synthetic modification of MIL-53(Fe) did not change in the morphology and crystal...
Herein, via one-step pyrolysis of glucose, dicyandiamide (DCDA) and Fe containing metal–organic framework (Fe-MOF), small Fe3C nanoparticles were in-situ decorated in 3D porous network of N-rich graphene (NGr). The Fe-MOF served as size regulating precursor, layered g-C3N4 (derived from pyrolysis of DCDA) acted as not only a template to guide the growth of small Fe3C nanoparticles, but also the carbon...
In this study, a novel nanohybrid consisting of flower-like MoS2 decorated with Cu2O nanoparticles has been successfully synthesized for non-enzymatic amperometric sensing of glucose. Structural characterizations revealed that Cu2O nanoparticles were highly dispersed on MoS2 nanosheets. Electrochemical performances were investigated by cyclic voltammetry (CV) and chronoamperometry. Compared to single...
Metabolic syndrome is associated with cardiovascular disease, type 2 diabetes mellitus (T2DM) and prediabetes. Metabolic syndrome is a cluster of interrelated clinical disorders. Difficulties in regulating glucose levels in blood are implicated in many of these disorders. Lactate, another energy metabolite, is produced under anaerobic conditions and can be used to monitor the balance between aerobic...
Here, we report for the first time, the use of molybdenum disulfide/titanium oxide/silicon nanowires (MoS2/TiO2/SiNW) surfaces for SALDI-MS detection as alternative to MALDI-MS method. Silicon nanowires were fabricated by the well-known metal-assisted chemical etching process followed by the deposition of TiO2 by atomic layer deposition. MoS2 deposition was achieved through hydrothermal treatment...
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