This review aims to summarize the rapidly emerging field of real-time stress monitoring by focusing on early breakthroughs and critical developments in portable and wearable cortisol sensors. Here, brief, albeit comprehensive, information on technological advances and current state-of-the-art concepts on real-time cortisol sensing are provided. Specific examples where materials include up-to-date information

Acoustic wave sensors are being developed for many emerging applications such as in semiconductor fabrication, biological diagnostics and polymer characterization. Traditional acoustic wave sensing devices such as quartz crystal microbalance (QCM) rely on polymer thin films coated on quartz plates to detect chemical and biological agents. It has been found that significant sensitivity enhancement of

The blood-brain barrier (BBB) is critical for the central nervous system, as its integrity protects neurons and other brain cells from harmful toxicants and disease-associated molecules, while it also blocks the delivery of therapeutic drugs to brain. Understanding the function and physiology of BBB have made slow progress due to the relative lack of effective models. Microfluidic BBB-on-a-chip models

The coronavirus disease 2019 (COVID-19) pandemic has infected millions of people around the globe. The outbreak caused by the novel coronavirus (SARS-CoV-2) poses a great health risk to the public. Therefore, rapid and accurate diagnosis of the virus plays a crucial role in treatment of the disease and saving lives. The current standard method for coronavirus detection is the reverse transcription

In the present paper, we propose a new design of surface plasmon resonance (SPR) sensor having better performance parameters by employing the well-known transfer matrix method. The proposed SPR sensor is comprised of BK-7 prism-ZnO-Ag-BaTiO3-Transition metal dichalcogenides (TMDCs, mainly WS2 and MoS2)/Graphene. A comparison is made among their performance parameters i.e. sensitivity, detection accuracy