Results 121 to 130 of about 62,631 (288)

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

Optimized ultrasound-assisted extraction of phenolic compounds from Polygonum cuspidatum [PDF]

open access: yes, 2015
In this study the phenolic compounds piceid, resveratrol and emodin were extracted from P. cuspidatum roots using ultrasound-assisted extraction. Multiple response surface methodology was used to optimize the extraction conditions of these phenolic ...
Chang, Chieh-Ming J   +6 more
core   +2 more sources

Interconnected Porous Hydrogels with Tunable Anisotropy Through Aqueous Emulsion Bioprinting

open access: yesAdvanced Functional Materials, EarlyView.
A 3D bioprintable microporous bioink is developed using an aqueous two‐phase system (ATPS) composed of extracellular matrix (ECM) mimetic biopolymers. The ATPS bioink enables the fabrication of interconnected porous architectures with up to 70% porosity, supporting long‐term cell viability and 3D cell alignment, enabling a simultaneous generation of ...
Hugo Edgar‐Vilar   +4 more
wiley   +1 more source

Simultaneous extraction, optimization, and analysis of flavonoids and polyphenols from peach and pumpkin extracts using a TLC-densitometric method [PDF]

open access: yes, 2015
Background: The use of medicinal plants has been reported throughout human history. In the fight against illnesses, medicinal plants represent the primary health care system for 60 % of the world’s population.
Altemimi, Ammar   +3 more
core   +2 more sources

Germanane Quantum Dots Promote Metabolic Reprogramming of Immune Cells Toward Regulatory T Cells and Suppress Inflammation In Vitro and In Vivo

open access: yesAdvanced Functional Materials, EarlyView.
Metabolic changes in immune cells direct the phenotype and function of the host immune system. Smart nanomaterials must target metabolic pathways to direct immune cell fate. This study reports the fabrication and first application of germanane quantum dots (GeHQDs) to modulate inflammation in vitro and in vivo.
Abhay Srivastava   +7 more
wiley   +1 more source

Selection Strategies for Flexible Pressure Sensor Electrode Materials Toward Ultrafast Response

open access: yesAdvanced Functional Materials, EarlyView.
This study reveals, for the first time, how the electrode–organic interface governs the temporal performance of flexible pressure sensors. By pairing high‐conductivity CVD PEDOT with commonly used metal electrodes, the authors demonstrate that interfacial energy alignment dictates microsecond‐scale response, providing a straightforward design strategy ...
Jinwook Baek   +11 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

Simultaneous Optimization for Ultrasound-Assisted Extraction and Antioxidant Activity of Flavonoids from Sophora flavescens Using Response Surface Methodology

open access: yesMolecules, 2018
The ultrasonic-assisted extraction process and antioxidant activity of flavonoids from Sophora flavescens were investigated in this study. In order to optimize the extraction of flavonoids from Sophora flavescens, the influence of extraction time ...
Jing Zhou   +6 more
doaj   +1 more source

Characterization And Ultrasonic Assisted Hydrolytic Extraction Of Selected Malaysian Propolis [PDF]

open access: yes, 2015
Propolis telah dibuktikan mempunyai pasaran yang unik dalam nutraseutikal disebabkan oleh keserbabolehannya dalam aktiviti-aktiviti farmakologi: antimikrob, antioksidan, antitumor dan lain-lain.
Yeo , Kai Liang
core  

Adaptive 4D‐Printed Vascular Stents With Low‐Temperature‐Activated and Intelligent Deployment

open access: yesAdvanced Functional Materials, EarlyView.
Microarchitected coronary artery stents were fabricated using a polycaprolactone (PCL)‐based shape memory polymer (SMP) composite via projection micro‐stereolithography (PµSL) 4D printing. By incorporating diethyl phthalate (DEP) as a plasticizer, the thermal transition temperature (Ttran) was modulated to about 37°C, enabling rapid and autonomous ...
Yannan Li   +12 more
wiley   +1 more source

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