A bionic electrochemical sensor combining an antifouling zwitterionic hydrogel with a conductive AuNPs/MXene framework and an umami taste receptor tracks storage-dependent umami-related responses in salmon, crucian carp, and cod while resisting fouling by proteins, lipids, and metabolites. Subject of…
A reaction on a single electrode can tell scientists a remarkable amount about the chemical nature and number of analytes involved. The challenge comes when they want to distinguish many reactions on the same electrode. After more than a decade…
An engineered E. coli biosensor built on the Pseudomonas putida ttg operon estimated biosynthetic resveratrol concentrations with 92.7 to 93.8 percent agreement with HPLC measurements.
A newly synthesized manganese(II) complex with 2,2′-bipyridine and hydrogen tartrate ligands improved electrode surface area, lowered charge-transfer resistance and shifted guanine oxidation, while antibacterial results remained inconclusive. Chemists have synthesized a new manganese(II) complex containing 2,2â²-bipyridine and hydrogen tartrate…
A new review argues that enzymatic biosensor progress is stalled less by materials than by inconsistent reporting of apparent kinetics, stability and operating conditions.
When glucose concentration was varied, the resonance frequency shifted systematically and monotonically, spanning from 0.719 to 0.714 THz. The design provides a usable tuning bandwidth of 30 GHz across the clinically significant concentration range, meaning the resonance moves in a predictable direction as…
Researchers have designed a flexible pressure sensor that is expected to have a much wider applicability. A KAIST research team fabricated a piezoresistive pressure sensor of high uniformity with low hysteresis by chemically grafting a conductive polymer onto a porous…
A biodegradable microneedle patch made of polyvinyl alcohol, polyaniline and phytic acid monitors glucose in living plant leaves for 14 hours and doubles as an ammonia gas sensor covering 10 to 500 ppm. Subject of Research: A biodegradable conductive hydrogel microneedle sensor for…
A new Perspective argues that paper and soft polymeric materials have become active platforms that are transforming electrochemical sensors for wearable, implantable and point-of-care use. Subject of Research: The use of paper-based and soft polymeric materials as active platforms in…
A spray-pyrolyzed zinc oxide thin film sensor detected 5 ppm formaldehyde at room temperature with a response of about 24, a 60-second response time and a 25-second recovery time.
Chemical sensors and detection methods: biosensors, gas sensors, electronic noses and tests for toxins, explosives, drugs and pollutants.
An article joins this feed when it matches these terms. Each one is also a search of its own.