As a reliable indicator of human physiological health, respiratory rate has been utilized in
more and more cases for prediction and diagnosis of potential respiratory diseases and the …

Obstructive sleep apnea syndrome (OASA) is a respiratory disease caused by upper airway
obstruction that is harmful to sleep quality and human health. Real-time monitoring of the …

In mammals, physiological respiration involves respiratory cycles of inhaled and exhaled
breaths, which has traditionally been an underutilized resource potentially encompassing a …

Respiration is one of the most important vital signs of humans, and respiratory monitoring
plays an important role in physical health management. A low-cost and convenient real-time …

Respiration is an important physiological process of human body that can not only act as
vital signs for physical health management or “biomarkers” of some diseases, but also as a …

In order for survival, we humans must breathe. The process of breathing involves not only
the exchange of oxygen and carbon dioxide but also the exhalation of chemical compounds …

Respiration is a major vital sign, which can be used for early illness diagnosis and
physiological monitoring. Wearable respiratory sensors present an exciting opportunity to …

Triboelectric nanogenerators (TENGs) have attracted much attention due to the high output,
low cost, and environmentally friendly nature. However, wearable devices still have certain …

High-efficiency particulate matter (PM) filtration has been an important effort in air
purification; however, conventional physical filtration mechanisms are inefficient in blocking …

The fast-spreading of novel coronavirus disease (COVID-19) has been sweeping around the
globe and brought heavy casualties and economic losses, which creates dire needs for …