Results 51 to 60 of about 7,589 (281)

Preoxidation for Colorimetric Sensor Array Detection of VOCs

, 2016
A disposable preoxidation technique that dramatically improves the detection and identification of volatile organic compounds (VOCs) by a colorimetric sensor array is reported.
Hengwei Lin (1504414), Kenneth S. Suslick (827963), Minseok Jang (2154364)   +2 more
core   +1 more source

Parameter Optimization of Support Vector Machine to Improve the Predictive Performance for Determination of Aflatoxin B₁ in Peanuts by Olfactory Visualization Technique

Molecules, 2022
This study proposes a novel method for detection of aflatoxin B1 (AFB1) in peanuts using olfactory visualization technique. First, 12 kinds of chemical dyes were selected to prepare a colorimetric sensor to assemble olfactory visualization system, which ...
Chengyun Zhu, Jihong Deng, Hui Jiang
doaj   +1 more source

Atomic Layer Deposition Processes: Versatile Platforms for Engineering ZnO‐Chitosan Biointerfaces

Advanced Healthcare Materials, EarlyView.
Vapour phase metalation (VPM), multiplied pulsed vapour phase infiltration (MPI), and O2 plasma‑enhanced atomic layer deposition (PEALD) tailor Zn–chitosan (Zn‑CS) films. PEALD improves wettability and biocompatibility. MPI enhances semiconductor behavior. Antiseptic selectivity: VPM → E. coli; MPI → H. pylori.
Mabel Moreno, Anjana Devi, David Zanders, Miryam Arredondo, Davide Mariotti, Ruairi McGlynn, Sindy Devis, Simón Guerrero, Eglantina Benavente, Matias Alegría, Yusser Olguin, Lorena Lobos‐Gonzalez, Kevin Guzmán, Elizabeth Rivas‐Yañez, Paula Solar, Valentin Cepus, Michael Krause, Luis Velásquez   +17 more
wiley   +1 more source

Bio-sensing textile based patch with integrated optical detection system for sweat monitoring [PDF]

, 2009
Sensors, which can be integrated into clothing and used to measure biochemical changes in body fluids, such as sweat, constitute a major advancement in the area of wearable sensors.
Wallace, Gordon, Morris, Deirdre, Coyle, Shirley, Wu, Yanzhe, Lau, King-Tong, Diamond, Dermot   +5 more
core   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

Electrically Readable Lateral Flow Assay Using Organic Transistors for Diagnostic Applications

Advanced Materials, EarlyView.
Electrolyte‐gated organic field‐effect transistors (EGOFETs) are integrated with lateral flow (LF) paper fluidics to create a reusable, portable, and low‐cost point‐of‐care (PoC) diagnostic test. The devices are validated for Human Immunoglobulin G detection, achieving high sensitivity (0.1 fm), selectivity, and reproducibility with rapid results in 20–
María Jesús Ortiz‐Aguayo, Carme Martínez‐Domingo, Diego Gutiérrez, Dean Kos, Marta Mas‐Torrent   +4 more
wiley   +1 more source

Virtual Colorimetric Sensor Array: Single Ionic Liquid for Solvent Discrimination

, 2015
There is a continuing need to develop high-performance sensors for monitoring organic solvents, primarily due to the environmental impact of such compounds.
Bishnu P. Regmi (1598353), Regmi, Bishnu P., Isiah M. Warner (1458664), Sergio L. de Rooy, Siraj, Noureen, Kevin S. McCarter (1615456), McCarter, Kevin S., Isiah M. Warner, Bishnu P. Regmi, Warner, Isiah M., Waduge Indika S. Galpothdeniya (1615459), Waduge Indika S. Galpothdeniya, Noureen Siraj (1458670), De Rooy, Sergio L., Sergio L. de Rooy (1615462), Noureen Siraj, Galpothdeniya, Waduge Indika S., Kevin S. McCarter   +17 more
core   +1 more source

Reactive Arrays of Colorimetric Sensors for Metabolite and Steroid Identification

Journal of Sensor Technology, 2014
The work described herein examines a rapid mix-and-measure method called DETECHIP suitable for screening of steroids and metabolites. The addition of steroids and metabolites to reactive arrays of colorimetric sensors generated characteristic color "fingerprints" that were used to identify the analyte.
Batres, Gary, Jones, Talia, Johnke, Hannah, Wilson, Mark, Holmes, Andrea E., Sikich, Sharmin   +5 more
openaire   +3 more sources

Colorimetric Sensor Arrays for the Detection and Identification of Chemical Weapons and Explosives [PDF]

Critical Reviews in Analytical Chemistry, 2016
There is a significant demand for devices that can rapidly detect chemical-biological-explosive (CBE) threats on-site and allow for immediate responders to mitigate spread, risk, and loss. The key to an effective reconnaissance mission is a unified detection technology that analyzes potential threats in real time.
Kangas, Michael J., Burks, Raychelle M., Atwater, Jordyn, Lukowicz, Rachel M., Williams, Pat, Holmes, Andrea E.   +5 more
openaire   +2 more sources

Ultra‐High‐Throughput Discovery of Multifunctional Polyphenolic Coatings on Droplet Microarrays

Advanced Materials, EarlyView.
An ultra‐high‐throughput (UHT) combinatorial strategy enables the miniaturized synthesis and screening of ≈30 000 polyamine‐polyphenolic (PaPp) coatings using droplet microarrays (DMA). This approach reveals hundreds of previously unknown fluorescent, redox‐active, and antibacterial materials, including multifunctional, cell‐compatible surfaces ...
Vania Tanda Widyaya, Joaquín E. Urrutia Gómez, Paul Reuß, Alexander Welle, Rolf A. Gattung, Jana Mayer, Peter Krolla, Markus Reischl, Pascal Friederich, Anna A. Popova, Thomas Schwartz, Pavel A. Levkin   +11 more
wiley   +1 more source