Vertical-cavity surface-emitting lasers (VCSELs) are used in biomedical sensors because they emit highly focused, coherent light at specific wavelengths, enabling precise detection and analysis of biomolecules. Applications include blood oxygen level monitoring, optical coherence tomography (OCT) for imaging tissue structures, fluorescence microscopy, and analysis of live biomolecules in lab-on-a-chip systems. VCSELs offer a third option […]
Biometrics
How do ear recognition biometrics work?
In the era of face masks, ear recognition can provide a viable alternative to more commonly used facial recognition. The human ear remains relatively unchanged, making it suitable for security authentication applications. It can also be easier to extract information from since it is not subject to variations like facial expressions. Ear recognition biometrics analyze […]
How does voice recognition biometrics work?
A voiceprint, also called a voice template, is a unique pattern of a person’s voice sounds. Based on hundreds of subtle voice characteristics, voiceprints can be used to identify a person, just like fingerprints or facial recognition. The uniqueness of voiceprints derives from the fact that there are over 70 body parts, each of which […]
How do eye & iris scan biometrics work?
Iris scan biometrics is one of two techniques that use unique eyeball characteristics for security and identification purposes. The other technique is retinal scanning. Iris scans are more commonly used because they are quicker and less invasive, but retinal scanning can be more accurate. The two techniques also have different applications. A retinal scan requires […]
What makes a stethoscope smart?
Unlike the analog stethoscope used by doctors for over 100 years, the digital stethoscope appeared in 1960. According to DataM Intelligence, a market research and business intelligence firm, the Electronic Stethoscope Market size was valued at USD 342.1 million in 2021 and is estimated to reach at a compound annual growth rate (CAGR) of 8.20% […]
What metrics can bioelectrical impedance analysis provide? Pt 2.
With biosensing analog front end (AFE) ICs available from several major suppliers, researchers have a variety of options to investigate more sophisticated health measurement and monitoring techniques for healthcare professionals as well as users. Some of the applications currently under active investigation include identifying acute tissue injury and skeletal muscle fatigue, assessing neuromuscular disorders, tracking […]
What metrics can bioelectrical impedance analysis provide? Pt 1.
Healthcare and fitness are increasingly important to many people. The ease of making measurements or showing improvement metrics and the amount of data that can be provided by a minimal, non-invasive process makes the ongoing effort sustainable. Bioelectrical impedance (or bioimpedance) analysis (BIA) provides users with a technique that is easily integrated into smart watches […]
Ultra-low-noise barometric pressure sensors target smart home appliance apps
TDK Corporation announces that the InvenSense ICP-20100, the latest generation of the SmartPressure MEMS Barometric Pressure Sensors, is now in mass production and has been certified by NextNav. Launched in 2021, the NextNav Certified process independently verifies the InvenSense sensor accuracy measurements, by engaging directly with component manufacturers to rigorously test sensors in real-world operating […]
Barometric pressure sensor targets mobile device apps
Bosch Sensortec introduces the BMP581, a barometric pressure sensor that couples low power consumption with extreme accuracy to provide altitude tracking in wearables, hearables, or IoT devices. This capability makes it ideal for applications such as fitness tracking, fall detection, indoor localization, and navigation, enabling new use cases that were previously impossible. This extreme level […]
How is biomarker sensing expanding?
Pathogens, infectious agents that cause disease, can include microscopic viruses, bacteria, fungi and protozoa. Both biomarkers and biosensors can detect and identify pathogenic agents. After using biomarkers to measure and detect pathogenic factors and assess biological conditions., drugs can be delivered to the target tissue so that other tissues are not damaged. Biomarkers are widely […]
