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Chemical Phenomena of Atomic Force Microscopy Scanning [PDF]

Analytical Chemistry, 2018
Atomic force microscopy is widely used for nanoscale characterization of materials by scientists worldwide. The long-held belief of ambient AFM is that the tip is generally chemically inert but can be functionalized with respect to the studied sample.
Petro Maksymovych, Joshua C. Agar, Olga S. Ovchinnikova, Gabriel Velarde, Chance Brown, Anton V. Ievlev, Matthew J. Burch, Lane W. Martin, Lane W. Martin, Sergei V. Kalinin   +9 more
openaire   +6 more sources

Thermodynamic experimental study of an Algerian condensate gas [PDF]

Acta Periodica Technologica, 2023
When a gas field is discovered, the gas condensate is often in a gaseous single-phase state in the reservoir under pressures and at temperatures which are higher the greater the depth.
Harche Rima, Mouheb Abdelkader, Rezig Ilhem Merhoune, Bekkouche Imane   +3 more
doaj   +1 more source

Hydroxytyrosol Enrichment of Olive Leaf Extracts via Membrane Separation Processes

Membranes, 2022
Antioxidants isolated from plant materials, such as phenolics, have attracted a lot of attention because of their potential uses. This contributes to the idea of the biorefinery, which is a way to produce useful products from biomass waste. Olea europaea
Costas S. Papageorgiou, Stathis Lymberopoulos, Panagiotis Bakas, Dimitris P. Zagklis, Varvara Sygouni, Christakis A. Paraskeva   +5 more
doaj   +1 more source

Does Augmented Reality Help to Understand Chemical Phenomena during Hands-On Experiments?-Implications for Cognitive Load and Learning

Multimodal Technologies and Interaction, 2023
Chemical phenomena are only observable on a macroscopic level, whereas they are explained by entities on a non-visible level. Students often demonstrate limited ability to link these different levels.
Hendrik Peeters, Sebastian Habig, Sabine Fechner   +2 more
semanticscholar   +1 more source

High-Yield Production of a Rich-in-Hydroxytyrosol Extract from Olive (Olea europaea) Leaves

Antioxidants, 2022
The aim of the present study was to explore the high-yield production of hydroxytyrosol, a phenolic compound with very high antioxidant capacity. Olea europaea leaves were chosen as feedstock as they contain significant amounts of oleuropein, which can ...
Costas S. Papageorgiou, Paraskevi Lyri, Ioanna Xintaropoulou, Ioannis Diamantopoulos, Dimitris P. Zagklis, Christakis A. Paraskeva   +5 more
doaj   +1 more source

The Protection of Building Materials of Historical Monuments with Nanoparticle Suspensions

Heritage, 2021
Marble and limestone have been extensively used as building materials in historical monuments. Environmental, physical, chemical and biological factors contribute to stone deterioration.
Efstathia I. Pavlakou, Anastasios G. Agrafiotis, Theokleiti G. Tsolaki, Christine Lemonia, Emily Zouvani, Christakis A. Paraskeva, Petros G. Koutsoukos   +6 more
doaj   +1 more source

Experimental Design and Optimization of Recovering Bioactive Compounds from Chlorella vulgaris through Conventional Extraction

Molecules, 2021
Microalgae contain an abundance of valuable bioactive compounds such as chlorophylls, carotenoids, and phenolics and, consequently, present great commercial interest.
Ioulia Georgiopoulou, Soultana Tzima, Georgia D. Pappa, Vasiliki Louli, Epaminondas Voutsas, Kostis Magoulas   +5 more
doaj   +1 more source

Protection of Historical Mortars through Treatment with Suspensions of Nanoparticles

Heritage, 2023
Mortars, which are very important elements for the integrity of historic monuments, consist mainly of calcium carbonate and silicates in different proportions.
Efstathia I. Pavlakou, Christine Lemonia, Emily Zouvani, Christakis A. Paraskeva, Petros G. Koutsoukos   +4 more
doaj   +1 more source

Practical Artificial Neural Network Tool for Predicting the Competitive Adsorption of Dyes on Gemini Polymeric Nanoarchitecture [PDF]

Kemija u Industriji, 2021
The objective of this study was to model the removal efficiency of ternary adsorption system using feed-forward back propagation artificial neural network (FFBP-ANN).
Abdelmadjid El Bey, Maamar Laidi, Amina Yettou, Salah Hanini, Abdellah Ibrir, Mohamed Hentabli, Hasna Ouldkhaoua   +6 more
doaj   +1 more source

Recovery of Bioactive Extracts from Olive Leaves Using Conventional and Microwave-Assisted Extraction with Classical and Deep Eutectic Solvents

Separations, 2022
The recovery of phenolic compounds from olive leaves (Olea europaea L.) has received special attention due to their significant potential for applications in food, nutraceuticals, cosmetics, and pharmaceuticals.
Eleni Boli, Nikos Prinos, Vasiliki Louli, Georgia Pappa, Haralambos Stamatis, Kostis Magoulas, Epaminondas Voutsas   +6 more
doaj   +1 more source