Results 91 to 100 of about 11,554 (330)

Polymer Nanoparticle Identification and Concentration Measurement Using Fiber-Enhanced Raman Spectroscopy

Chemosensors, 2020
We present a measurement technique for chemical identification and concentration measurement of polymer nanoparticles in aqueous solution, which is achieved using Raman spectroscopy.
Mark R. Pollard, Katia Sparnacci, Lars J. Wacker, Hugo Kerdoncuff   +3 more
doaj   +1 more source

Finite element analysis of photonic crystal fibers [PDF]

, 2005
A finite-element-based vectorial optical mode solver, furnished with Bayliss-Gunzburger-Turkel-like transparent boundary conditions, is used to rigorously analyze photonic crystal fibers (PCFs).
Groesen, E. van, Hoekstra, H.J.W.M., Uranus, H.P.   +2 more
core   +2 more sources

Mechanoregulatory Effects of Cell‐Scale Microwells on Epithelial Cell Phenotype

Advanced Functional Materials, EarlyView.
In small polycaprolactone microwells, A549 epithelial cells span well edges, in contrast to cells growing on flat substrates. Focal adhesion sites (yellow) concentrate at topographic boundaries, while cytoskeletal tension (magenta stress fibers) is transmitted to the nucleus (blue), reducing nuclear sphericity.
Ruiwen He, Wang Sik Lee, Phattadon Yajan, Aaron Lee, Mauro Sousa de Almeida, Sandeep Keshavan, Jozef Adamcik, Céline Loussert‐Fonta, Dimitri Vanhecke, Barbara Rothen‐Rutishauser, Alke Petri‐Fink   +10 more
wiley   +1 more source

Actuating and Sensing Composites of Liquid Crystal Elastomers and Poly(ionic liquid)s

Advanced Functional Materials, EarlyView.
Ionic conductive, mechanically tough, flexible, and stretchable filaments of a composite material comprising a liquid crystal elastomer and a poly(ionic liquid) are produced through 3D printing, which exhibit large actuation strain under stimulation and electrical resistance variation in response to deformation or environmental condition changes. Their
Zeping Liu, Xiaofeng Zheng, Shaoxia Zhang, Long Xu, Meng Liu, Jeremy Baribeault St‐Germain, Yue Zhao   +6 more
wiley   +1 more source

Understanding the Role of Superhydrophobicity and Superhydrophilicity in Salt‐Spray Corrosion of Nanosecond Pulsed Laser‐Textured AA2024 Alloy

Advanced Functional Materials, EarlyView.
Nanosecond pulse laser texturing yields superhydrophobic and superhydrophilic AA2024 surfaces. Salt‐spray tests show that periodic superhydrophobic patterns suppress pitting, whereas superhydrophilic textures enhance it, linking laser‐induced morphology, wettability, and oxide chemistry to corrosion resistance.
Lis Geraldine Zschach, Robert Baumann, Eric Pohl, Angelika Wrzesińska‐Lashkova, Marcelo Sallese, Ignacio Tabares, Herman Heffner, Yana Vaynzof, Andrés Fabián Lasagni   +8 more
wiley   +1 more source

Modelling of microstructured waveguides using a finite-element-based vectorial mode solver with transparent boundary conditions [PDF]

, 2004
Finite element vectorial optical mode solver is used to analyze microstructured waveguides in a relatively small computational domain. The presentation will consider the computational method, as well as the applications of it on a number of waveguides ...
Groesen, E. van, Hoekstra, H.J.W.M., Uranus, H.P.   +2 more
core   +1 more source

Composite THz materials using aligned metallic and semiconductor microwires, experiments and interpretation

, 2010
We report fabrication method and THz characterization of composite films containing either aligned metallic (tin alloy) microwires or chalcogenide As2Se3 microwires.
Alexandre Dupuis, Anna Mazhorova, Aydin, Bayindir, Boltasseva, Boyle, Brosseau, Chen, Elser, Harris, Hiroaki Minamide, Hiromasa Ito, Hornyak, Hou, Huczko, Jian Feng Gu, Jin, Katsidis, Kondo, Li, Ma, Maksim Skorobogatiy, Marco Peccianti, Markoš, Maslovski, Ming Tang, Minowa, Miyamaru, Ozaki Tsuneyuki, Papasimakis, Pendry, Peng, Podolskiy, Rahachou, Roberto Morandotti, Scheller, Silveirinha, Smith, Takano, Takano, Tuniz, Tyagi, Withayachumnankul, Yahiaoui, Yuye Wang, Zhang   +45 more
core   +1 more source

Fabrication of Pyridinic Nitrogen‐Functionalized Carbon Cloth for High‐Performance Iron‐Chromium Flow Batteries

Advanced Functional Materials, EarlyView.
The carbon cloth electrode with targeted pyridinic nitrogen doping, achieved via urea pyrolysis, effectively modulates the adsorption of Cr(II) species and enhances electron transfer, leading to significantly improved kinetics of the Cr(II)/Cr(III) reaction. The material demonstrates a high discharge capacity of 689.3 mAh and an energy efficiency of 72.
Jinfeng Yi, Senwei Zeng, Runfa Zhao, Guangfu Wu, Zhi Liu, Tianhang Zhou, Chunming Xu, Jia Guo, Quan Xu, Yingchun Niu   +9 more
wiley   +1 more source

Surface Plasmon Scattering in Exposed Core Optical Fiber for Enhanced Resolution Refractive Index Sensing

Sensors, 2015
Refractometric sensors based on optical excitation of surface plasmons on the side of an optical fiber is an established sensing architecture that has enabled laboratory demonstrations of cost effective portable devices for biological and chemical ...
Elizaveta Klantsataya, Alexandre François, Heike Ebendorff-Heidepriem, Peter Hoffmann, Tanya M. Monro   +4 more
doaj   +1 more source

Amyloidogenic Peptide Fragments Designed From Bacterial Collagen‐like Proteins Form Hydrogel

Advanced Functional Materials, EarlyView.
This study identified amyloidogenic sequence motifs in bacterial collagen‐like proteins and exploited these to design peptides that self‐assemble into β‐sheet fibers and form hydrogels. One hydrogel supported healthy fibroblast growth, showing promise for biocompatible materials. Our work demonstrates that bacterial sequences can be harnessed to create
Vamika Sagar, Xuen J Ng, Lukas Lechel, Ashish Chand Rajwar, Hendrik Bargel, Abhishek A. Jalan   +5 more
wiley   +1 more source