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Biosensor

How does an electronic tongue sense: part 2

March 5, 2025 By Randy Frank

Part 1 showed two production techniques for electronic- or E-tongues. Researchers are busy investigating ways to use advanced artificial intelligence (AI) in conjunction with new sensing techniques to provide even more capabilities to E-tongues. Sensing for food problems To detect food fraud, spoilage, and contamination within minutes, researchers at Penn State University developed their version […]

Filed Under: Biosensor, Featured, Industrial Tagged With: FAQ

How does voice recognition biometrics work?

December 4, 2024 By Jeff Shepard

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 […]

Filed Under: Biometrics, Biosensor, Featured, Frequently Asked Question (FAQ)

How do eye & iris scan biometrics work?

November 20, 2024 By Jeff Shepard

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 […]

Filed Under: Biometrics, Biosensor, Featured, Frequently Asked Question (FAQ) Tagged With: FAQ

What are the applications for hollow core fiber optical sensors?

April 10, 2024 By Jeff Shepard

Hollow core fiber (HCF) optical sensors are used in applications including Li-ion battery research and development (R&D), robotic arms, civil engineering infrastructural health monitoring, and biosensing. Some of the attributes of HCF optical sensors are small footprints, non-conductance, chemical stability, and high dynamic ranges. In the case of activities like Li-ion R&D, HCFs can be […]

Filed Under: Biosensor, Featured, Frequently Asked Question (FAQ) Tagged With: FAQ

How does skin color impact biosensors?

January 12, 2023 By Randy Frank

To determine blood oxygen (arterial blood oxygen saturation (SpO2)) and pulse rate, many biosensors use the reflectance of red and infrared (and sometimes green) light. Based on photoplethysmography (PPG), an optical technique that measures blood volume variations, dual-wavelength PPG pulse oximeters noninvasively measure/calculate the arterial oxygen saturation (SpO2). An oximeter transmits radiation at a known […]

Filed Under: Biosensor, Featured, Frequently Asked Question (FAQ) Tagged With: Apple

What are next generation bio sensing techniques? Part 2

December 13, 2022 By Randy Frank

Part 1 of this blog explored research into localized surface plasmon resonance (LSPR) sensors. This part discusses a surface plasmon resonance/surface-enhanced Raman scattering (SPR/SERS) dual-mode plasmonic biosensor and two other sensing techniques. The SPR/SERS biosensor based on catalytic hairpin assembly (CHA)-induced Au nanoparticle (AuNP) network was proposed for highly sensitive and reliable detection of a […]

Filed Under: Biosensor, Featured, Frequently Asked Question (FAQ), Optical Tagged With: razi university

What are next generation bio sensing techniques? Part 1

December 6, 2022 By Randy Frank

With the ease that people can travel around the world, viruses spread through droplet transmission are one of the most dangerous causes of infectious diseases. The COVID-19 pandemic made this point quite clear. One of the obvious responses to prevent a reoccurrence of this type of situation is effective virus detection technology to prevent the […]

Filed Under: Biosensor, Featured, Frequently Asked Question (FAQ) Tagged With: national center for biotechnology information

What’s new in glucose sensing?

October 24, 2022 By Randy Frank

Key driving forces for new or next generation products include (1) critical need, (2) broad, global usage and (3) sufficient volume requirements to justify R&D expenditures. Glucose sensing/monitoring meets these criteria and more. In the United States alone, the American Diabetes Association (ADA) says over 133 million Americans have diabetes or prediabetes [1]. According to […]

Filed Under: Biosensor, Featured, Frequently Asked Question (FAQ), spectroscopy Tagged With: rockley photonics

How can low-cost sensors help address climate change?

June 30, 2022 By Randy Frank

According to the recent IDTechEx report “Printed and Flexible Sensors 2022-2032: Technologies, Players, Markets,” low cost printed/flexible sensor technologies could play a significant role in adapting to climate change [1]. Adapting could take various forms, from changing the areas in which specific crops are grown to building flood defense systems and even relocating cities in more […]

Filed Under: Biosensor, Chemical Sensor, Featured, Frequently Asked Question (FAQ) Tagged With: IDTechEx

How can sensors help cleanup waterways?

May 18, 2022 By Randy Frank

Twenty years after its first-generation design was introduced (2002), iRobot’s Roomba has spawned many competitors for indoor cleanup and made several advancements to its initial capabilities. Interactive Autonomous Dynamic Systems (IADYS) has applied the autonomous robot concept to address cleaner and safer water in rivers, canals, lakes, ponds, shipyards, and more. IADYS’ Jellyfishbot autonomously collects […]

Filed Under: Biosensor, Chemical Sensor, Featured, Frequently Asked Question (FAQ), RADAR/LiDAR, Vision systems Tagged With: iadys

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