Results 1 to 10 of about 56,679,644 (152)

Graphene Oxide Layer-by-Layer Films for Sensors and Devices [PDF]

open access: yesNanomaterials, 2021
Layer-by-layer films of poly (allylamine hydrochloride) (PAH) and graphene oxide (GO) were characterized, looking at growth with the number of bilayers, morphology, and electrical properties. The PAH/GO films revealed a linear increase in absorbance with
Ivan C. C. Assunção   +6 more
doaj   +2 more sources

Discrimination of Milks with a Multisensor System Based on Layer-by-Layer Films [PDF]

open access: yesSensors, 2018
A nanostructured electrochemical bi-sensor system for the analysis of milks has been developed using the layer-by-layer technique. The non-enzymatic sensor [CHI+IL/CuPcS]2, is a layered material containing a negative film of the anionic sulfonated copper
Coral Salvo-Comino   +3 more
doaj   +2 more sources

Voltammetric Detection of Caffeine in Beverages at Nafion/Graphite Nanoplatelets Layer-by-Layer Films [PDF]

open access: yesNanomaterials, 2019
We report for the first time a procedure in which Nafion/Graphite nanoplatelets (GNPs) thin films are fabricated using a modified layer-by-layer (LbL) method.
Sandra Hernandez-Aldave   +3 more
doaj   +2 more sources

Characterization of Layer-by-Layer Biodegradable Films Based on Hydroxypropyl Methylcellulose-Nanochitosan

open access: yesJournal of Applied Food Technology, 2023
This research investigates the physical and optical properties of single-layer and layer-by-layer biodegradable films composed of hydroxypropyl methylcellulose (HPMC) and nanochitosan.
Aulal Muna   +2 more
doaj   +1 more source

Effect of Applied Electrical Stimuli to Interdigitated Electrode Sensors While Detecting 17α-Ethinylestradiol in Water Samples

open access: yesChemosensors, 2022
The effect of impedance measurements of applied voltage on the detection of 17α-ethinylestradiol (EE2) in water samples using interdigitated electrodes (IDE) coated or not with thin films, is described.
Paulo M. Zagalo   +2 more
doaj   +1 more source

Control of Surface Properties of Hyaluronan/Chitosan Multilayered Coatings for Tumor Cell Capture

open access: yesPolysaccharides, 2021
Prostate cancer (PCa) is a slow-growing neoplasm that has, when diagnosed in its early stages, great chances of cure. During initial tumor development, current diagnostic methods fail to have the desired accuracy, thus, it is necessary to develop or ...
Giulia G. Lima   +3 more
doaj   +1 more source

Graphene Oxide Thin Films with Drug Delivery Function

open access: yesNanomaterials, 2022
Graphene oxide has been used in different fields of nanomedicine as a manager of drug delivery due to its inherent physical and chemical properties that allow its use in thin films with biomedical applications.
Alexandra M. L. Oliveira   +6 more
doaj   +1 more source

Electrochemistry of Layer-by-Layer Films: a review

open access: yesInternational Journal of Electrochemical Science, 2006
The use of nanostructured films to modify electrochemical electrodes has allowed a whole host of new systems/devices to be fabricated, with properties that may be tuned upon synergistic interactions between the film components.
Frank N. Crespilho, Valtencir Zucolotto, Osvaldo N. Oliveira Jr. and Francisco C. Nart
doaj   +2 more sources

SIMULATION OF LAYER BY LAYER GROWTH OF FRACTAL METAL Pt-Rh FILMS

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
In this work, the molecular dynamics method and the tight-binding potential are used to simulate the process of molecular beam epitaxy in order to determine the regularities in the formation of fractal platinum metal films on the rhodium surface.
D.V. Ivanov   +5 more
doaj   +1 more source

Molecular conformation of polyelectrolytes inside Layer-by-Layer assembled films

open access: yesNature Communications, 2023
Among all methods available for the preparation of multifunctional nanostructured composite materials with remarkable functional properties, Layer-by-Layer (LbL) assembly is currently one of the most widely used techniques due to its environmental ...
Philipp Gutfreund   +5 more
doaj   +1 more source

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