Results 1 to 10 of about 158,468 (254)

Chemical Sensors for Toxic Chemical Detection [PDF]

Sensors
Industrialization, modern agriculture, urbanization, and modern lifestyles are expected to have a strong impact on the environment [...]
Marijo Buzuk
doaj   +4 more sources

Nickel Oxide-Carbon Soot-Cellulose Acetate Nanocomposite for the Detection of Mesitylene Vapour: Investigating the Sensing Mechanism Using an LCR Meter Coupled to an FTIR Spectrometer

Nanomaterials, 2022
Nanocomposite sensors were prepared using carbon soot (CNPs), nickel oxide nanoparticles (NiO-NPs), and cellulose acetate (CA), which was used to detect and study the sensing mechanism of mesitylene vapour at room temperature.
Lesego Malepe, Patrick Ndungu, Derek Tantoh Ndinteh, Messai Adenew Mamo   +3 more
doaj   +1 more source

pH based supercapacitors: Achieving high capacitance in gold metallized regenerated cellulose amide supercapacitor electrodes by pH gradient

Energy Reports, 2022
High energy density was achieved through pH gradient creation in an amidic cellulose incorporated with gold nanoparticles. Three different pH gradients (6–8, 4–10, and 2–12) showed respective specific capacitances of 218, 423 and 603 Fg−1 energy ...
O.D. Saliu, M. Mamo, P. Ndungu, J. Ramontja   +3 more
doaj   +1 more source

Free-standing, thin-film sensors for the trace detection of explosives

Scientific Reports, 2021
In a world focused on the development of cybersecurity, many densely populated areas and transportation hubs are still susceptible to terrorist attacks via improvised explosive devices (IEDs).
Peter P. Ricci, Otto J. Gregory
doaj   +1 more source

A Novel BiOCl Based Nanocomposite Membrane for Water Desalination

Membranes, 2022
In this study, BiOCl based nanocomposites were used as photocatalytic membranes for a simulated study on water desalination in reverse osmosis membrane systems.
Rokhsareh Akbarzadeh, Patrick Gathura Ndungu   +1 more
doaj   +1 more source

Carbon Nanotube Chemical Sensors [PDF]

Chemical Reviews, 2019
Sibo Lin, Timothy Swager, Vera Schroeder   +2 more
exaly   +2 more sources

Microwave exfoliation of a biochar obtained from updraft retort carbonization for supercapacitor fabrication

Electrochemistry Communications, 2022
Biochar can offer a sustainable and renewable solution to energy storage problems. In this work, a biochar (which we refer to as an exfoliated biochar) with well-formed edge and basal planes was developed and characterized, and its electrochemical ...
O.D. Saliu, A.G. Adeniyi, M. Mamo, P. Ndungu, J. Ramontja   +4 more
doaj   +1 more source

Fatty Acid Prediction in Bovine Milk by Attenuated Total Reflection Infrared Spectroscopy after Solvent-Free Lipid Separation

Foods, 2021
In the present study, a novel approach for mid-infrared (IR)-based prediction of bovine milk fatty acid composition is introduced. A rapid, solvent-free, two-step centrifugation method was applied in order to obtain representative milk fat fractions.
Christopher Karim Akhgar, Vanessa Nürnberger, Marlene Nadvornik, Margit Velik, Andreas Schwaighofer, Erwin Rosenberg, Bernhard Lendl   +6 more
doaj   +1 more source

Current Applications of Magnetic Nanomaterials for Extraction of Mycotoxins, Pesticides, and Pharmaceuticals in Food Commodities

Molecules, 2021
Environmental pollutants, such as mycotoxins, pesticides, and pharmaceuticals, are a group of contaminates that occur naturally, while others are produced from anthropogenic sources.
Sarem Targuma, Patrick B. Njobeh, Patrick G. Ndungu   +2 more
doaj   +1 more source

A Paper-Based Sandwich Format Hybridization Assay for Unlabeled Nucleic Acid Detection Using Upconversion Nanoparticles as Energy Donors in Luminescence Resonance Energy Transfer

Nanomaterials, 2015
Bioassays based on cellulose paper substrates are gaining increasing popularity for the development of field portable and low-cost diagnostic applications.
Feng Zhou, M. Omair Noor, Ulrich J. Krull   +2 more
doaj   +1 more source