scholarly journals A three-dimensional statistical model for imaged microstructures of porous polymer films

2017 ◽  
Vol 269 (3) ◽  
pp. 247-258 ◽  
Author(s):  
S. BARMAN ◽  
D. BOLIN
Keyword(s):  
Statistical Model ◽  
Polymer Films ◽  
Three Dimensional ◽  
Porous Polymer

scholarly journals Three‐dimensional reconstruction of porous polymer films from FIB‐SEM nanotomography data using random forests

2020 ◽  
Vol 281 (1) ◽  
pp. 76-86 ◽  
Author(s):  
M. RÖDING ◽  
C. FAGER ◽  
A. OLSSON ◽  
C. VON CORSWANT ◽  
E. OLSSON ◽  
...  
Keyword(s):  
Random Forests ◽  
Polymer Films ◽  
Three Dimensional ◽  
Porous Polymer ◽  
Three Dimensional Reconstruction ◽  
Dimensional Reconstruction

Scanning-tunneling spectroscopy on conjugated polymer films

2003 ◽  
Vol 771 ◽  
Author(s):  
M. Kemerink ◽  
S.F. Alvarado ◽  
P.M. Koenraad ◽  
R.A.J. Janssen ◽  
H.W.M. Salemink ◽  
...  
Keyword(s):  
Polymer Films ◽  
Conjugated Polymer ◽  
Three Dimensional ◽  
Field Enhancement ◽  
Direct Consequence ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Band Alignment ◽  
Scanning Tunneling ◽  
Order Of Magnitude

AbstractScanning-tunneling spectroscopy experiments have been performed on conjugated polymer films and have been compared to a three-dimensional numerical model for charge injection and transport. It is found that field enhancement near the tip apex leads to significant changes in the injected current, which can amount to more than an order of magnitude, and can even change the polarity of the dominant charge carrier. As a direct consequence, the single-particle band gap and band alignment of the organic material can be directly obtained from tip height-voltage (z-V) curves, provided that the tip has a sufficiently sharp apex.

Morphometry of the sacrum and its implication on trans-sacral corridors using a computed tomography data-based three-dimensional statistical model

2017 ◽  
Vol 17 (8) ◽  
pp. 1141-1147 ◽  
Author(s):  
Daniel Wagner ◽  
Lukas Kamer ◽  
Takeshi Sawaguchi ◽  
Robert Geoff Richards ◽  
Hansrudi Noser ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Statistical Model ◽  
Three Dimensional ◽  
Tomography Data

Simple fabrication of a three-dimensional porous polymer film as a diffuser for organic light emitting diodes

Nanoscale ◽  
2014 ◽  
Vol 6 (23) ◽  
pp. 14446-14452 ◽  
Author(s):  
Byung Wan Lim ◽  
Min Chul Suh
Keyword(s):  
Polymer Film ◽  
Spin Coating ◽  
Three Dimensional ◽  
Cost Effective ◽  
Porous Polymer ◽  
Organic Light Emitting Diodes ◽  
Coating Process ◽  
Light Emitting ◽  
Organic Light ◽  
Ultrasonic Humidifier

We have investigated a simple and cost-effective fabrication method for a porous polymer film employing the spin-coating process during continuous supply of water droplets by an ultrasonic humidifier.

scholarly journals Recent advances in honeycomb-structured porous polymer films prepared via breath figures

2012 ◽  
Vol 48 (6) ◽  
pp. 1001-1025 ◽  
Author(s):  
Pierre Escalé ◽  
Laurent Rubatat ◽  
Laurent Billon ◽  
Maud Save
Keyword(s):  
Polymer Films ◽  
Porous Polymer ◽  
Breath Figures ◽  
Recent Advances

Monitoring morphological and optical properties on hybrid porous polymer films

2017 ◽  
Vol 22 (8) ◽  
pp. 741-751 ◽  
Author(s):  
Guadalupe del C. Pizarro ◽  
Oscar G. Marambio ◽  
Manuel Jeria-Orell ◽  
Diego P. Oyarzún ◽  
Rudy Martin-Trasanco ◽  
...  
Keyword(s):  
Optical Properties ◽  
Polymer Films ◽  
Porous Polymer

Epithelial cell adhesion on films mimicking surface of polymeric scaffolds of artificial urethra compared to molecular modeling of integrin binding

2019 ◽  
Vol 34 (3) ◽  
pp. 280-290 ◽  
Author(s):  
Jakub Kollar ◽  
Andrea Morelli ◽  
Federica Chiellini ◽  
Stanislav Miertus ◽  
Dusan Bakos ◽  
...  
Keyword(s):  
Hyaluronic Acid ◽  
Cell Adhesion ◽  
Epithelial Cell ◽  
Polymer Films ◽  
Rational Design ◽  
Computational Study ◽  
Transmembrane Protein ◽  
Molecular Mechanic ◽  
Three Dimensional ◽  
Film Surface

In this study, a combined experimental and computational study of long-term human bladder epithelial cell line HBLAK adhesion and proliferation on five different polymeric surfaces, namely hyaluronic acid, amylose, collagen, polyhydroxybutyrate, and polylactic acid, was performed with the goal to understand the nature of the attraction between various surface materials and a simplified model of the cell surface (transmembrane protein integrin). These biodegradable polymers are frequently used as scaffolds for tissue engineering. During formation of the new tissue, the scaffold polymers are gradually replaced by the natural extracellular matrix of the proliferating cells. Cell adhesion and proliferation experiments were carried out employing thin polymer films prepared by solvent casting while for the computational approach three-dimensional molecular models of layers of ordered polymeric fibers were used as quasi-planar nano-sized models of polymeric surface patches. Experimental results indicated a good capability of amylose, polyhydroxybutyrate, and hyaluronic acid polymer films to foster cell adhesion. Proliferation experiment, carried out by incubating cells with the investigated polymer films for 72 h, showed that all the investigated polymers are able to sustain a good proliferation of HBLAK cells almost comparable to plain glass. Computational estimate of molecular mechanic interaction energies between three-dimensional models of polymeric films and the collagen-binding α2 I domain of the cell adhesion receptor integrin α2β1 confirmed elevated affinity to amylose and polyhydroxybutyrate that is related to higher polarity of function groups on the film surface as documented by the maps of molecular electrostatic potential. This combined experimental and modeling approach can contribute to rational design and surface modifications of polymeric material suitable for forming the scaffolds of human urethra that can be effectively colonized by stem cells.

scholarly journals Tailoring pore distribution in polymer films via evaporation induced phase separation

RSC Advances ◽  
2019 ◽  
Vol 9 (27) ◽  
pp. 15593-15605 ◽  
Author(s):  
Rumiaya Pervin ◽  
Pijush Ghosh ◽  
Madivala G. Basavaraj
Keyword(s):  
Phase Separation ◽  
Polymer Films ◽  
Pore Distribution ◽  
Porous Polymer ◽  
Fundamental Understanding

The work contributes to a fundamental understanding of how to regulate the microstructure of porous polymer films fabricated via evaporation induced phase separation (EIPS).

The Generation of Three-dimensional Anisotropies in Thin Polymer Films by Angular Selective Photoproduct Formation and Annealing

2005 ◽  
Vol 38 (10) ◽  
pp. 4324-4330 ◽  
Author(s):  
C. Christoph Jung ◽  
Regina Rosenhauer ◽  
Michael Rutloh ◽  
Christian Kempe ◽  
Joachim Stumpe
Keyword(s):  
Polymer Films ◽  
Three Dimensional ◽  
Thin Polymer Films ◽  
Thin Polymer
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