Shear and extensional rheology and flow-induced orientation of carbon nanofiber/polystyrene melt composites

2010 ◽  
Vol 119 (4) ◽  
pp. 1940-1951 ◽  
Author(s):  
Koki Miyazono ◽  
Christopher D. Kagarise ◽  
Kurt W. Koelling ◽  
Monon Mahboob ◽  
Stephen E. Bechtel
Keyword(s):  
Carbon Nanofiber ◽  
Extensional Rheology ◽  
Polystyrene Melt

A constitutive model for characterization of shear and extensional rheology and flow induced orientation of carbon nanofiber/polystyrene melt composites

2011 ◽  
Vol 55 (4) ◽  
pp. 781-807 ◽  
Author(s):  
Christopher Kagarise ◽  
Koki Miyazono ◽  
Monon Mahboob ◽  
Kurt W. Koelling ◽  
Stephen E. Bechtel
Keyword(s):  
Constitutive Model ◽  
Carbon Nanofiber ◽  
Extensional Rheology ◽  
Polystyrene Melt

Transient shear rheology of carbon nanofiber/polystyrene melt composites

2010 ◽  
Vol 165 (3-4) ◽  
pp. 98-109 ◽  
Author(s):  
Christopher Kagarise ◽  
Jianhua Xu ◽  
Yingru Wang ◽  
Monon Mahboob ◽  
Kurt W. Koelling ◽  
...  
Keyword(s):  
Carbon Nanofiber ◽  
Shear Rheology ◽  
Polystyrene Melt

Shear and extensional rheology of carbon nanofiber suspensions

2005 ◽  
Vol 44 (6) ◽  
pp. 537-562 ◽  
Author(s):  
Jianhua Xu ◽  
Swaroop Chatterjee ◽  
Kurt W. Koelling ◽  
Yingru Wang ◽  
Stephen E. Bechtel
Keyword(s):  
Carbon Nanofiber ◽  
Extensional Rheology

Cytocompatibility of Carbon Nanofiber Materials for Neural Applications

2003 ◽  
Vol 774 ◽  
Author(s):  
Janice L. McKenzie ◽  
Michael C. Waid ◽  
Riyi Shi ◽  
Thomas J. Webster
Keyword(s):  
Carbon Fiber ◽  
Surface Energy ◽  
Carbon Nanofibers ◽  
Carbon Fibers ◽  
Carbon Nanofiber ◽  
Fiber Composite ◽  
Scar Tissue ◽  
Pc 12 Cells ◽  
Low Surface Energy ◽  
Poly Carbonate

AbstractSince the cytocompatibility of carbon nanofibers with respect to neural applications remains largely uninvestigated, the objective of the present in vitro study was to determine cytocompatibility properties of formulations containing carbon nanofibers. Carbon fiber substrates were prepared from four different types of carbon fibers, two with nanoscale diameters (nanophase, or less than or equal to 100 nm) and two with conventional diameters (or greater than 200 nm). Within these two categories, both a high and a low surface energy fiber were investigated and tested. Astrocytes (glial scar tissue-forming cells) and pheochromocytoma cells (PC-12; neuronal-like cells) were seeded separately onto the substrates. Results provided the first evidence that astrocytes preferentially adhered on the carbon fiber that had the largest diameter and the lowest surface energy. PC-12 cells exhibited the most neurites on the carbon fiber with nanodimensions and low surface energy. These results may indicate that PC-12 cells prefer nanoscale carbon fibers while astrocytes prefer conventional scale fibers. A composite was formed from poly-carbonate urethane and the 60 nm carbon fiber. Composite substrates were thus formed using different weight percentages of this fiber in the polymer matrix. Increased astrocyte adherence and PC-12 neurite density corresponded to decreasing amounts of the carbon nanofibers in the poly-carbonate urethane matrices. Controlling carbon fiber diameter may be an approach for increasing implant contact with neurons and decreasing scar tissue formation.

Cytocompatibility and Material Properties of Poly-carbonate Urethane/Carbon Nanofiber Composites for Neural Applications

2003 ◽  
Vol 774 ◽  
Author(s):  
Janice L. McKenzie ◽  
Michael C. Waid ◽  
Riyi Shi ◽  
Thomas J. Webster
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanofibers ◽  
Material Properties ◽  
Carbon Nanofiber ◽  
Scar Tissue ◽  
Tissue Response ◽  
Positive Interactions ◽  
Weight Percentage ◽  
Poly Carbonate

AbstractCarbon nanofibers possess excellent conductivity properties, which may be beneficial in the design of more effective neural prostheses, however, limited evidence on their cytocompatibility properties exists. The objective of the present in vitro study was to determine cytocompatibility and material properties of formulations containing carbon nanofibers to predict the gliotic scar tissue response. Poly-carbonate urethane was combined with carbon nanofibers in varying weight percentages to provide a supportive matrix with beneficial bulk electrical and mechanical properties. The substrates were tested for mechanical properties and conductivity. Astrocytes (glial scar tissue-forming cells) were seeded onto the substrates for adhesion. Results provided the first evidence that astrocytes preferentially adhered to the composite material that contained the lowest weight percentage of carbon nanofibers. Positive interactions with neurons, and, at the same time, limited astrocyte functions leading to decreased gliotic scar tissue formation are essential for increased neuronal implant efficacy.

ELECTROCHEMICAL DETECTION OF FLUOXETINE IN WATER USING A SILVER MODIFIED ZEOLITE-CARBON NANOFIBER ELECTRODE

2017 ◽  
Vol 16 (4) ◽  
pp. 829-836
Author(s):  
Florica Manea ◽  
Magdalena Ardelean ◽  
Aniela Pop ◽  
Rodica Pode ◽  
Joop Schoonman
Keyword(s):  
Electrochemical Detection ◽  
Carbon Nanofiber ◽  
Modified Zeolite

Electrosorption Behavior of Carbon Nanotube and Carbon Nanofiber Film Electrodes

2011 ◽  
Vol 1 (1) ◽  
pp. 16-26
Author(s):  
Likun Pan ◽  
Haibo Li ◽  
Yankun Zhan ◽  
Yanping Zhang ◽  
Zhuo Sun
Keyword(s):  
Carbon Nanotube ◽  
Carbon Nanofiber ◽  
Nanofiber Film
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