Results 1 to 10 of about 14,231 (229)

Low-Cost Sensors Based on Nanoparticles of Tin Dioxide Decorated with Graphene Used to Detect Ultra-Low NO₂ Concentrations at Room Temperature

Proceedings
Chemical nanosensors based on nanoparticles (NPs) of pure tin dioxide (SnO2) and graphene-decorated tin dioxide were developed and characterized for the detection of pollutant gases. Sensitive layers were prepared by a drop casting method.
Isabel Sayago, Carlos Sánchez-Vicente, José Pedro Santos   +2 more
doaj   +1 more source

Analysing the Temperature Effect on the Competitiveness of the Amine Addition versus the Amidation Reaction in the Epoxidized Oil/Amine System by MCR-ALS of FTIR Data

International Journal of Analytical Chemistry, 2011
The evaluation of the temperature effect on the competitiveness between the amine addition and the amidation reaction in a model cure acid-catalysed reaction between the epoxidized methyl oleate (EMO), obtained from high oleic sunflower oil, and aniline ...
Vanessa del Río, M. Pilar Callao, M. Soledad Larrechi   +2 more
doaj   +1 more source

Advances in nano sensors for monitoring and optimal performance enhancement in photovoltaic cells

iScience
Summary: Nanosensors have gained significant attention in recent years for improving energy conversion and storage performance in solar cells. These nanosensors, typically made from nanoparticles or nanowires, can be embedded within the solar cell to ...
Th.S. Dhahi, Alaa Kamal Yousif Dafhalla, Omer Elsier Tayfour, Azath Mubarakali, Abdulrahman Saad Alqahtani, Amira Elsir Tayfour Ahmed, Mohamed Elshaikh Elobaid, Tijjani Adam, Subash C.B. Gopinath   +8 more
doaj   +1 more source

Design of Wireless Nanosensor Networks for Intrabody Application

International Journal of Distributed Sensor Networks, 2015
Emerging nanotechnology presents great potential to change human society. Nanoscale devices are able to be included with Internet. This new communication paradigm, referred to as Internet of Nanothings (IoNT), demands very short-range connections among ...
Suk Jin Lee, Changyong (Andrew) Jung, Kyusun Choi, Sungun Kim   +3 more
doaj   +1 more source

Broadening ZnO: Ag Potential for Hydrogen Detection Applications via iCVD-Coated Thin-Film Polymer

Engineering Proceedings
Considering the various applications where detection is required—whether for industrial or medical purposes—providing cost-efficient, stable, and highly selective solutions remains challenging.
Mihai Brînză, Dinu Litra, Nicolae Magariu, Adrian Bîrnaz, Cristian Lupan, Lynn Schwäke, Vasilii Crețu, Stefan Schröder, Oleg Lupan   +8 more
doaj   +1 more source

Sandwich-Type Electrochemical Aptasensor with Supramolecular Architecture for Prostate-Specific Antigen

Molecules
A novel sandwich-type electrochemical aptasensor based on supramolecularly immobilized affinity bioreceptor was prepared via host–guest interactions.
Anabel Villalonga, Raúl Díaz, Irene Ojeda, Alfredo Sánchez, Beatriz Mayol, Paloma Martínez-Ruiz, Reynaldo Villalonga, Diana Vilela   +7 more
doaj   +1 more source

A Dual Nanosensor Approach to Determine the Cytosolic Concentration of ATP in Astrocytes

Frontiers in Cellular Neuroscience, 2020
Adenosine triphosphate (ATP) is the central energy carrier of all cells and knowledge on the dynamics of the concentration of ATP ([ATP]) provides important insights into the energetic state of a cell.
Susanne Köhler, Hartmut Schmidt, Paula Fülle, Paula Fülle, Johannes Hirrlinger, Johannes Hirrlinger, Ulrike Winkler   +6 more
doaj   +1 more source

Nanocomposites for Electrochemical Sensors and Their Applications on the Detection of Trace Metals in Environmental Water Samples

Sensors, 2020
The elevated concentrations of various trace metals beyond existing guideline recommendations in water bodies have promoted research on the development of various electrochemical nanosensors for the trace metals’ early detection. Inspired by the exciting
Tshimangadzo S. Munonde, Philiswa N. Nomngongo   +1 more
doaj   +1 more source

Room-Temperature Environmental Gas Detection: Performance Comparison of Nanoparticle-Based Sensors Fabricated by Electrospray, Drop-Casting, and Dry Printing Based on Spark Ablation

Chemosensors
Chemical nanosensors based on tin dioxide (SnO2) and zinc oxide (ZnO) nanoparticles (NPs) were developed and characterized for the detection of low concentrations of atmospheric pollutants, such as nitrogen dioxide (NO2) and carbon monoxide (CO).
Carlos Sánchez-Vicente, José Pedro Santos, Isabel Sayago, Vincent Mazzola, Leandro Sacco   +4 more
doaj   +1 more source

Quadruple labelled dual oxygen and pH-sensitive ratiometric nanosensors

Sensing and Bio-Sensing Research, 2016
Nanosensors capable of simultaneously measuring dissolved oxygen concentrations from 0 to 100% saturation and pH over the full physiological range, from pH 3.5 to 7.5, that advance the methods towards understanding of key biological gradients, were ...
Veeren M. Chauhan, Francesca Giuntini, Jonathan W. Aylott   +2 more
doaj   +1 more source