Role of oxygen functional groups and attachment of Au nanoparticles on graphene oxide sheets for improved photodetection performance.

Integrating low-dimensional graphene oxide (GO) with conventional Si technology offers innovative strategies for developing ultrafast wideband photodetectors. In this study, we synthesized GO and explored its potential application in broadband photodetection alongside silicon heterostructures. The as-synthesized GO contains various oxygen functional groups, as evidenced by X-ray photoelectron and Fourier transform infrared spectroscopy.

Asymmetric contact-induced selective doping of CVD-grown bilayer WS and its application in high-performance photodetection with an ultralow dark current.

Two-dimensional (2D) transition metal dichalcogenides (TMDs) are excellent candidates for high-performance optoelectronics due to their high carrier mobility, air stability and strong optical absorption. However, photodetectors made with monolayer TMDs often exhibit a high dark current, and thus, there is a scope for further improvement. Herein, we developed a 2D bilayer tungsten disulfide (WS) based photodetector (PD) with asymmetric contacts that exhibits an exceptionally low dark current and high specific detectivity.

Fast detection of using thiol-functionalized WS quantum dots and BiOSe nanosheets hybrid through a fluorescence recovery mechanism.

Ultrafast and sensitive detection of (), a harmful Gram-positive human pathogenic bacterium, by two-dimensional layered materials continues to be a challenge. Herein, we have studied the sensing of using a tungsten disulfide (WS) quantum dot (QD) and bismuth oxyselenide (BiOSe) nanosheet (NS) hybrid through their unique optical functionalities. The WS QDs of a mean diameter of 2.

Two-Dimensional Transition Metal Dichalcogenide Based Biosensors: From Fundamentals to Healthcare Applications.

There has been an exponential surge in reports on two-dimensional (2D) materials ever since the discovery of graphene in 2004. Transition metal dichalcogenides (TMDs) are a class of 2D materials where weak van der Waals force binds individual covalently bonded X-M-X layers (where M is the transition metal and X is the chalcogen), making layer-controlled synthesis possible. These individual building blocks (single-layer TMDs) transition from indirect to direct band gaps and have fascinating optical and electronic properties.

C-reactive Protein Level in Type-2 Diabetic Patients Attending Mymensingh Medical College Hospital, Mymensingh.

C-reactive protein (CRP) is a sensitive physiological biomarker of sub-clinical inflammation associated with hyperglycemia, insulin resistance and type 2 diabetic patients. A cross sectional study of 120 subjects attending outpatient department of Mymensingh Medical College, Mymensingh was done with an aim to evaluate serum C-reactive protein in type 2 diabetic patients and compare with age matched non-diabetic persons from July 2014 to June 2015. Of the total cases, 60 were Type 2 diabetic patients and 60 were apparently healthy non-diabetic persons recruited for the study.