Results 81 to 90 of about 1,825 (170)

Structural Investigation of Langmuir and Langmuir−Blodgett Monolayers of Semifluorinated Alkanes

The Journal of Physical Chemistry B, 2006
The behavior of a semi-fluorinated alkane (C(10)F(21)C(19)H(39)) has been studied at the air-water interface by using surface pressure and surface potential-area isotherms as well as infrared spectroscopy for the Langmuir-Blodgett films. In addition, based on the quantum chemical PM3 semiempirical approach, the dimer structure was investigated, and the
Dynarowicz-Łątka, Patrycja, Pérez-Morales, Marta, Muñoz, Eulogia, Broniatowski, Marcin, Martín-Romero, María T., Camacho, Luis   +5 more
openaire   +3 more sources

Extraction of Antimicrobial Peptides From Fava Bean Protein Hydrolyzate by Phosphorylated Biochar

Food Safety and Health, EarlyView.
Antimicrobial peptides were extracted by functional biochar in one step. The enriched peptides demonstrated significantly enhanced antibacterial activity. ABSTRACT The extraction of antimicrobial peptides (AMPs) from plant proteins remains challenging due to their low abundance, structural diversity, and the need for mild, efficient, and selective ...
Xiang‐Yu Huang, Hao‐Ran Liu, Rong Guo, Li Ding, Li Wen, Xu‐Feng Wang, Zhou Xu, Yun‐Hui Cheng, Mao‐Long Chen   +8 more
wiley   +1 more source

Monolayer Behavior of Cyclic and Linear Forms of Surfactins: Thermodynamic Analysis of Langmuir Monolayers and AFM Study of Langmuir-Blodgett Monolayers

Journal of Oleo Science, 2014
The molecular interactions of monolayers composed of cyclic and linear forms of surfactins (SFs) were evaluated through atomic force microscopy (AFM) together with a Langmuir monolayer technique. The surface pressure (π)-area per molecule (A) isotherm of a pure cyclic surfactin (CSF) monolayer exhibited a liquid expanded (Le) monolayer, while that of a
Taira, Toshiaki, Ikeda, Shintaro, Kawamura, Daisuke, Sakai, Hideki, Abe, Masahiko, Kitamoto, Dai, Imura, Tomohiro   +6 more
openaire   +3 more sources

Estimation of Specific Surface Area using Langmuir Isotherm Method

Journal of Applied Sciences and Environmental Management, 2011
A comparison of four widely used linear equations of the Langmuir types of isotherm (The Langmuir Type 1, 2, 3 and 4 ) were examined in an experiment using dye sorption onto derived acid and salt treated Fish Activated Carbon (H3PO4-FAC and ZnCl2-FAC ...
AU Itodo, HU Itodo, MK Gafar
doaj   +1 more source

Synthesis and application of alginate@CuFe2O4 polymeric spheres in 17‐β‐estradiol adsorption processes in Amazonian rivers

Polymer International, EarlyView.
Magnetic alginate beads, functionalized with copper ferrite, effectively remove 17‐β‐estradiol from Amazonian water, exhibiting optimized 238.65 μg g−1 capacity, fast 40 min kinetics, easy recovery, and successful remediation. Abstract The presence of endocrine‐disrupting compounds, such as 17‐β‐estradiol, in aquatic ecosystems poses a significant ...
Dante S Silva, Adriano R. S Silva, Yasmin S Medeiros, José R Santos Neto, Jamily L dos Santos, Ananias L dos Santos, Roberta L. S Bernardino, Giulian César S Sá, Leandro A Pocrifka, Sidnei C dos Santos, Emilly C Silva   +10 more
wiley   +1 more source

Influence of sulfonation degree and deposition technique on the electrical and morphological properties of sulfonated polystyrene thin films

Polymer International, EarlyView.
Sulfonated polystyrene films with different degrees of sulfonation were fabricated using Langmuir–Schaefer and drop‐casting techniques. Both the deposition method and sulfonation level strongly affect film morphology and electrical response, governing the performance of these materials as ammonia gas sensors.
Maria Eduarda RS Medina, Jéssyka C Bittencourt, Vinicius JRO Patzer, Marcelo S Borro, Antônio JF de Carvalho, Debora T Balogh, Roger C Hiorns, Deuber LS Agostini, Clarissa A Olivati   +8 more
wiley   +1 more source

Photonic nanovoids for tailored optoelectronic response in silicon solar cells

Responsive Materials, EarlyView.
Optoelectronic workflow followed by experimental validation, demonstrating state‐of‐the‐art efficiency gains. Abstract As crystalline silicon (c‐Si) solar cells become thinner to reduce cost and weight, the optical design principles that govern light trapping (LT) must evolve.
Ivan M. Santos, Miguel Alexandre, Valentin D. Mihailetchi, Kezheng Li, António T. Vicente, Eva Almeida, Mónica Dyreby, Tiago Mateus, Tomás Calmeiro, Elvira Fortunato, Rodrigo Martins, Hugo Águas, Manuel J. Mendes   +12 more
wiley   +1 more source

Influence of the isolation method of the soapstockfatty component on its characteristics

Research in Agricultural Engineering, 2015
From soapstock, which is a waste product of sunflower oil production, the fatty component was isolated using isopropyl alcohol, toluene, fusel oil and a mixture of common salt and nonionic surfactants.
Y.I. Prokof'ev, T.N. Poyarkova, A.R. Bykov, A.S. Shestakov, V.A. Kuznetsov, O.G. Androsova   +5 more
doaj   +1 more source

Opportunities for 2D‐Material‐Based Multifunctional Devices and Systems in Bioinspired Neural Networks

Small, EarlyView.
Bio‐inspired computing offers a route to highly energy‐efficient artificial intelligence. The unique physical properties of two‐dimensional (2D) materials can further enhance such computing approaches. This perspective highlights recent developments in 2D materials‐based neuromorphic devices and discusses future opportunities for integrating such novel
Jin Feng Leong, Maheswari Sivan, Jieming Pan, Zihang Fang, Jianan Li, Zefeng Xu, Shi Zhao, Quanzhen Wan, Evgeny Zamburg, Aaron Voon‐Yew Thean   +9 more
wiley   +1 more source

On the Interaction between Digitonin and Cholesterol in Langmuir Monolayers

Langmuir, 2016
In this article, we describe the effect of a highly hemolytic saponin, digitonin, on model lipids cholesterol and dipalmitoylphosphatidylcholine (DPPC) using a combination of tensiometric (surface pressure and dilatational surface elasticity), spectroscopic (infrared reflection absorption spectroscopy, IRRAS), microscopic (fluorescence microscopy), and
Wojciechowski, Kamil, Orczyk, Marta, Gutberlet, Thomas, Brezesinski, Gerald, Geue, Thomas, Fontaine, Philippe   +5 more
openaire   +4 more sources