The high atomic number and near-infrared absorption of tungsten disulfide quantum dots (WS₂-QDs) (3 nm and 28 nm) of tungsten disulfide nanomaterials enable their synthesis as enhancers for X-ray computed tomography (CT)/photoacoustic imaging (PA), boosting their applications in bioimaging and radiotherapy.

Tungsten disulfide nanomaterials can be successfully used in biosensors and nanomedicine, such as observation of DNA hybridization, enzymes, and proteins, as well as environmental contamination and medical diagnostics. For a long time, electrochemical biosensors, such as semiconductors and screen-printed electrodes, have been used for various applications in numerous fields.

With the development of nanotechnology, tungsten disulfide nanomaterials (WS₂NM) have been a new choice for optical biosensors. Researchers reported the use of a simple method to create a hybrid material consisting of WS₂ nanosheets and hydroxylated MWCNTs (WS₂/MWCNTs-OH). The substrate was screen-printed carbon electrodes (SPCE), which has the advantage of requiring minimal cost and being disposable and energy efficient. Modification with WS₂/MWCNTs-OH composites improved the rate of sensitive and selective behavior.

Tungsten disulfide nanomaterials (WS₂NM) are new nanostructures that could be a new option for biosensors. Bio-sensors were developed as a combination of bioreceptors and sensors and are classified according to their elements. They are usually classified into three categories based on the transducer, including electrochemical, optical, and electrical conductivity methods. Meanwhile, the classification of biomarkers is based on molecules, cells, and tissues.