Results 241 to 250 of about 76,305 (304)

Light‑Driven Propulsion of Graphene Aerogels in Microgravity

Advanced Science, EarlyView.
Ultralight graphene aerogels convert laser light into thrust. Parabolic‐flight experiments directly compare their motion in microgravity and at 1 g, revealing order‐of‐magnitude enhancements in distance, velocity, and transient thrust when weight and friction are removed (∼50 times enhancement).
Omnia Khattab, Rami Elkaffas, Basel Altawil, Omar Alsuwaidi, Afnan Almubashir, Claire Perfetti, Shanavas Shajahan, Marco Braibanti, Sean Swei, Carlo Saverio Iorio, Yarjan Abdul Samad   +10 more
wiley   +1 more source

Structural Characterization and Enzymatic Modification of Soybean Polysaccharides [PDF]

, 2017
Pierce, Brian
core  

Role of Epoxide Functionalization of Amines for Development of Direct Air Capture Sorbents with High Cyclic Working Capacity at Low Desorption Temperatures

Advanced Science, EarlyView.
Appropriate butylene oxide (BO) functionalization of amines (polyethyleneimine (PEI1200 and PEI300) and tris(2‐aminoethyl)amine (TREN)) enables excellent cyclic working capacities (WCcyclic) at low desorption temperatures (40−70°C). Notably, 0.30BO‐PEI300‐SY and 0.54BO‐TREN‐SY show the highest WCcyclic at 45 and 40°C, respectively.
Joo Yeon Han, Hayoung Jeong, Younghyu Ko, Yohan Cho, Seenu Ravi, Kyu‐Min Ryoum, Hyug Hee Han, Yujin Choi, Chaewon Shin, Jeong Woo Han, Youn‐Sang Bae   +10 more
wiley   +1 more source

In Situ Electrostatic Charge‐Assisted Wetting for Enhancing Interfacial Strength of Printed Electronics

Advanced Electronic Materials, EarlyView.
This study introduces an in situ electrostatic charge‐assisted wetting method to enhance the interfacial strength of aerosol jet printing. By depositing negative charges on the substrate, the technique improves ink wetting and interfacial properties, achieving up to 85.6% higher interfacial shear strength.
Ao Li, Zhenxiang Xiong, Wenao Ye, Dejin Yan, Xiaoming Chen, Chenglin Yi   +5 more
wiley   +1 more source

Organic Electrochemical Transistors and Foreign Body Reaction: First Steps Toward Long‐Term Implantable Biosensing

Advanced Electronic Materials, EarlyView.
Organic Electrochemical Transistors (OECT) have been applied as implanted sensors in recent years. However, Foreign Body Reaction (FBR) effects on OECT performance are still underexplored. Here, we analyze OECT operation when covered by FBR‐related proteins in an in vitro scenario.
Henrique Frulani de Paula Barbosa, Titinun Nuntapramote, Ankush Kumar, Sander van den Driesche, Michael J. Vellekoop, Dorothea Brüggemann, Björn Lüssem   +6 more
wiley   +1 more source

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TEMPO-oxidized cellulose nanofibers

Nanoscale, 2011
Native wood celluloses can be converted to individual nanofibers 3-4 nm wide that are at least several microns in length, i.e. with aspect ratios>100, by TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical)-mediated oxidation and successive mild disintegration in water.
Akira, Isogai, Tsuguyuki, Saito, Hayaka, Fukuzumi   +2 more
openaire   +2 more sources

Oxidized cellulose-based hemostatic materials

Carbohydrate Polymers, 2020
The application of hemostatic agents is essential to prevent significant blood loss and death from excessive bleeding in surgical or emergency scenarios. Oxidized cellulose is an excellent biodegradable and biocompatible derivate of cellulose, which has become one of the most important hemostatic agents used in surgical procedures.
Shaohua Zhang, Jiwei Li, Shaojuan Chen, Xiying Zhang, Jianwei Ma, Jinmei He   +5 more
openaire   +2 more sources

Oxidation of Cellulose

Conference Record of the 2008 IEEE International Symposium on Electrical Insulation, 2008
Oxidation ageing experiments on paper and transformer oil insulation has been performed using two different techniques. First, we used oxygen pressurized bottles with oil-paper isolation where oil and paper are sampled at certain intervals during 8 months and degree of polymerization is measured.
K.B. Liland, M.H. Ese, L. Lundgaard, M. Kes   +3 more
openaire   +1 more source

Biodegradation of oxidized regenerated cellulose

Carbohydrate Research, 1990
The in vitro solubilization and degradation of regenerated cellulose was studied under conditions which approximate those found in vivo, when the material is used as an adhesion barrier to assist normal wound repair. Factors affecting solubilization which were examined included the effects of serum or plasma, and the presence of hydrolytic enzymes ...
S D, Dimitrijevich, M, Tatarko, R W, Gracy, C B, Linsky, C, Olsen   +4 more
openaire   +2 more sources

Periodate Oxidation of Crystalline Cellulose

Biomacromolecules, 2000
Conversion of 1,2-dihydroxyl groups to dialdehyde by periodate oxidation is a useful method of derivatizing polysaccharides but has not been extensively utilized in derivatization of cellulose because of complicacy due to the crystalline nature of cellulose.
U J, Kim, S, Kuga, M, Wada, T, Okano, T, Kondo   +4 more
openaire   +2 more sources