Results 141 to 150 of about 2,061,847 (332)

Lignin and Cellulose Extraction from Vietnam’s Rice Straw Using Ultrasound-Assisted Alkaline Treatment Method

open access: yesInternational Journal of Polymer Science, 2017
The process of cellulose and lignin extraction from Vietnam’s rice straw without paraffin pretreatment was proposed to improve economic efficiency and reduce environmental pollution.
Ngo Dinh Vu   +4 more
doaj   +1 more source

Ethanolic Extract of Stachys byzantina Leaf: Optimization of Ultrasonic Probe-Assisted Extraction and Characterization

open access: yesPlants
The present study aimed to apply ultrasonic probe-assisted extraction (UPAE) using ethanol as a solvent to separate compounds from Stachys byzantina leaves. Experimental tests were carried out to investigate the influence of temperature (T) (30, 45 and 60 °C), ultrasonic amplitude (UA) (30, 60 and 90%) and extraction time (ET) (10, 15 and 20 min) on ...
Sthefany Lorena Gemaque Dias   +7 more
openaire   +2 more sources

Unique Role of Microstructure of a Bioimplant Zinc Alloy and Protein Content of Simulated Body Fluid in Corrosion and Fracture

open access: yesAdvanced Functional Materials, EarlyView.
BSA addition to physiological solutions enhances resistance of a Zn alloy to stress corrosion cracking (SCC) but reduces its corrosion resistance. Extended surface characterization explains the contrasting influences on corrosion and SCC. Unexpectedly, the alloy suffers transgranular SCC (TGSCC), despite extensive grain boundary precipitation. Thorough
RK Singh Raman   +9 more
wiley   +1 more source

Extraction of flavonoids from Goji (Lycium barbarum L.) leaves by ultrasonic⁃assisted two⁃phase aqueous method and the inhibitory activity of the extract on pancreatic lipase

open access: yesShipin yu jixie
ObjectiveThis study aimed to achieve high yield and green extraction of flavonoids from Goji (Lycium barbarum L.) leaves using ultrasonic assisted aqueous two-phase method, and to evaluate the activity of extract.MethodsSingle factor and PB (Plackett ...
JIA Xiaofeng   +4 more
doaj   +1 more source

Ligand Assisted Epitaxial Growth of CsPbBr3 Microcrystal Resonators With Record ‐Low Lasing Thresholds

open access: yesAdvanced Functional Materials, EarlyView.
Solution‐based ligand‐assisted epitaxial growth (LAEG) yields high‐quality CsPbBr3 microcrystals on different substrates with superior morphology, passivated surfaces, and high photoluminescence quantum yield. These robust micro‐resonators achieve record‐low room‐temperature lasing thresholds of 7.2 kW·cm−2 and maintain operational stability up to 90 ...
Shuyu Zhou   +19 more
wiley   +1 more source

Bio‐Inspired Multifunctional Superhydrophilic Coatings With Remarkably Fast Self‐Healing Abilities

open access: yesAdvanced Functional Materials, EarlyView.
We developed bio‐inspired multifunctional hydrogel‐based coatings that exhibit extremely fast/repeatable self‐healing abilities, long‐lasting anti‐fogging performance, superhydrophilicity in air, and underwater superoleophobicity. By doping multivalent metal‐ions into the hydrogel networks, which promoted hydrogen bonding formation and enhanced the ...
Hyeonjin Kim   +5 more
wiley   +1 more source

Pectin extraction and characterization from kidney bean hulls using hot acid and ultrasonic assisted extraction methods

open access: yes
In order to evaluate kidney bean husks, extraction of pectin from this waste was carried out under hot acid and ultrasonic assisted extraction methods. Dilute solutions of different organic and inorganic acids were used as extraction solutions, and their
Uguzdogan, Erdal, Hajiyev, Vugar
core   +1 more source

Effect of Ultrasonic-Assisted Extraction on Phenolic Content of Avocado [PDF]

open access: yes, 2014
This study evaluate the effect of ultrasonic application in the extraction process on total phenolic content (TPC) of Hass avocado (Persea americana Mill) pulp.
Shirai, Yoshihito   +17 more
core  

Ultrasonic-assisted solid-phase extraction of sotalol in human urine samples using molecularly imprinted nanoparticles: Experimental design and adsorption study

open access: yes, 2018
Ultrasonic-assisted solid-phase extraction via molecularly imprinted nanoparticles followed by HPLC-UV was used for trace determination of sotalol. Under optimized conditions, linear range, limit of detection, and limit of quantification of the proposed ...
Saeed Masoum (1749664)   +2 more
core   +1 more source

Reaction‐Time pH Stabilization by Poly(acrylic acid) with Ethanol‐Mediated Growth Control for Efficient Hydrothermal Sb2(S,Se)3 Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
Poly(acrylic acid) acts as a reaction‐time pH buffer during hydrothermal Sb2(S,Se)3 growth through its COOH/COO‐ equilibrium. When combined with ethanol‐regulated growth, this buffering strategy reduces Sb‐O related surface disorder, improves local electronic uniformity and carrier collection, and increases the champion solar‐cell efficiency to 10.25%,
Juhee Lee   +7 more
wiley   +1 more source

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