350 Result(s)
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Article
Delayed Fluorescence and Amplified Chirality via Modified Substitution Position for Deep-red Circularly Polarized Organic Light Emitting-diodes
Develo** easily accessible deep-red/near-infrared circularly polarized emitters for practical organic light-emitting diodes remains a significant challenge. Here, a practical strategy has been proposed for d...
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Study on combustion characteristics and smoke components of aviation cable under low pressure
In order to study the cruise safety of aircraft under high altitude and low pressure, the combustion characteristics of protective cover and insulation layer of waxy aviation cable FXL under normal pressure an...
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Article
Open AccessNanosilver-based materials as feed additives: Evaluation of their transformations along in vitro gastrointestinal digestion in pigs and chickens by using an ICP-MS based analytical platform
The use of a new nanomaterial in the feed chain requires a risk assessment that involves in vitro gastrointestinal digestions to predict its degradation and oral exposure to nanoparticles. In this study, a nan...
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Article
A new Ni(II) metalloporphyrin: characterization, theoretical sensing calculations and catalytic degradation of methylene blue and methyl orange dyes
With the aim of studying the electronic and structural properties of metalloporphyrins, we first prepared the 4-acetoxy-3-methoxy benzaldehyde (1) then by reaction this aldehyde with pyrrole the meso-arylporphyri...
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Article
Formylation boosts the performance of light-driven overcrowded alkene-derived rotary molecular motors
Artificial molecular motors and machines constitute a critical element in the transition from individual molecular motion to the creation of collective dynamic molecular systems and responsive materials. The d...
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Article
Advances on lithium, magnesium, zinc, and iron-air batteries as energy delivery devices—a critical review
This comprehensive review delves into recent advancements in lithium, magnesium, zinc, and iron-air batteries, which have emerged as promising energy delivery devices with diverse applications, collectively sh...
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Article
Heat transfer and fluid flow characteristics over a backward-facing step (BFS) containing square-rectangular ribs integrated as forward-facing steps (FFS)
Modifying the geometrical structures is a potential strategy that targets the compactness of any new devices in order to produce greater cooling performance. The heat transfer enhancement over a BFS with uniqu...
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Characterization of soluble fibro-protein extract from Tunisian date seeds "Deglet Nour" by targeted and untargeted techniques
The present study aims to characterize Tunisian date seeds "Deglet Nour" and to determine the functional properties of the fibro-protein fraction obtained by simple water extraction. Date seed powder contains ...
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Article
Synthesize of exfoliated poly-methylmethacrylate/organomontmorillonite nanocomposites by in situ polymerization: structural study, thermal properties and application for removal of azo dye pollutant
This paper reports the synthesis of exfoliated structure of Poly-methylmethacrylate/organomontmorillonite nanocomposites by in situ polymerization of Methylmethacrylate monomer as a cost-effective adsorbent fo...
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Article
Differential thermal measurements of phase transitions at high pressures and temperatures
Thermal measurements of high-pressure transitions in metals can provide thermodynamic insight into the properties of the high-pressure high-temperature phases and their transitions. However, these measurements...
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Article
Flash Boiling Atomization of High-Concentration Suspensions in Suspension Plasma Spraying
This study aims to investigate the advantage of using flash boiling atomization as a new method of feedstock injection in suspension plasma spraying (SPS) and compare the results with continuous jet injection ...
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Article
Electrochemiluminescent imaging of a NADH-based enzymatic reaction confined within giant liposomes
Herein, transient releases either from NADH-loaded liposomes or enzymatic reactions confined in giant liposomes were imaged by electrochemiluminescence (ECL). NADH was first encapsulated with the [Ru(bpy)3]2+ lum...
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Article
Inferring cellular and molecular processes in single-cell data with non-negative matrix factorization using Python, R and GenePattern Notebook implementations of CoGAPS
Non-negative matrix factorization (NMF) is an unsupervised learning method well suited to high-throughput biology. However, inferring biological processes from an NMF result still requires additional post hoc ...
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Article
Microstructural, Mechanical, and Tribological Evaluation of Cu-Al-based Coatings Deposited by APS and HVOF
Thermal-sprayed coatings have been extensively used in aerospace with the main purpose to overcome critical challenges such as abrasive wear, corrosion, and erosion under high temperatures and pressures. Cu-Al...
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Article
Exploring the impact of vanadium on physical, structural and thermal properties of bioactive glass 46S6: a comparative study with other metallic elements
Vanadium-doped quaternary bioactive glass systems 46 SiO2, (24–x/2) Na2O, (24–x/2) CaO, 6P2O5, xV, where x = 0, 0.5, 2.5, 2.8, and 5 mass% of vanadium through the use of V2O5 oxide, were successfully synthesized ...
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Article
MLP and optimized FCM-ANFIS models proposed for inlet turbulent flow under ultrasonic vibration
In this research, two methods, the multi-layer perceptron (MLP) neural network and the adaptive neuro-fuzzy inference system (ANFIS), were employed to find the best relationship between inputs and outputs of t...
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Article
Open AccessExploring the quality and nutritional profiles of monovarietal oils from millennial olive trees in Tunisia
In Tunisia, the olive tree has been cultivated for more than 3000 years by different civilizations, such as the Phoenicians, Greeks, Carthaginians, Romans, and Arabs. The ancient olive trees, which thrive in h...
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Article
Open AccessOptical control of ultrafast structural dynamics in a fluorescent protein
The photoisomerization reaction of a fluorescent protein chromophore occurs on the ultrafast timescale. The structural dynamics that result from femtosecond optical excitation have contributions from vibration...
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Article
Distinctive calcium isotopic composition of mice organs and fluids: implications for biological research
The stable calcium (Ca) isotopes offer a minimally invasive method for assessing Ca balance in the body, providing a new avenue for research and clinical applications. In this study, we measured the Ca isotopi...
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Sub-femtomolar capacitance-based biosensing of kanamycin using screen-printed electrodes coated with redox-active polymeric films
An ultrasensitive capacitance-based biosensor has been developed capable of detecting the kanamycin (KAN) antibiotic at sub-femtomolar levels. The biosensor was constructed using a potential-pulse-assisted met...
