scholarly journals Characteristics and Micromorphology of Designed Regenerative a Cellular Dermal Collagen Particles Derived from a Combined Procedure of Supercritical Carbon Dioxide Fluids and Protease Treatments at Low Temperatures

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Ching Cheng Huang
Keyword(s):  
Carbon Dioxide ◽  
Mechanical Property ◽  
Supercritical Carbon Dioxide ◽  
Medical Devices ◽  
Low Temperatures ◽  
Combined Procedure ◽  
Cutting Machine ◽  
Dermal Collagen ◽  
Specific Tissue ◽  
Supercritical Carbon

A new regenerative collagen particle with extra-cellular matrix (ECM) was designed and prepared from porcine dermal. A specific tissue-cutting machine was designed to prepare extra thin tissue membranes, which could be used for preparing the regenerative collagen particles with ECM. Furthermore, a novel procedure combining supercritical carbon dioxide fluids technology and protease treatments at low temperatures was employed. Characteristics of the resulting regenerative collagen particles with ECM were observed by determining morphology, thermal property and mechanical property for clinic application of medical devices

Effect of Supercritical Carbon Dioxide Dyeing Procedure on Mechanical Property of Wool Fiber

2014 ◽  
Vol 1048 ◽  
pp. 17-20 ◽  
Author(s):  
Peng Peng Yin ◽  
Lai Jiu Zheng ◽  
Yan Yun Wu ◽  
Zhong Tao Gao ◽  
Bing Du
Keyword(s):  
Carbon Dioxide ◽  
Mechanical Property ◽  
Supercritical Carbon Dioxide ◽  
Wool Fiber ◽  
Design Experiment ◽  
Optimal Conditions ◽  
Single Factor ◽  
Single Factor Experiment ◽  
Supercritical Carbon

In this paper, the effects of dyeing temperature, pressure, and time on mechanical property of wool fiber were investigated in supercritical carbon dioxide fluid. In addition, On the basis of single factor experiment, the optimal technological conditions for dyed wool fiber was optimized by employing Box-Benhnken Design experiment, and the optimal conditions were as following: dyeing temperature 110 °C, dyeing pressure 25 MPa and dyeing time 75 min.

scholarly journals Low Temperature Deposition of Metal Oxide Thin Films in Supercritical Carbon Dioxide Using Metal-organic Precursors

2007 ◽  
Vol 1007 ◽  
Author(s):  
Theodosia Gougousi ◽  
Zhiying Chen
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Low Temperatures ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Metal Organic ◽  
Organic Precursors ◽  
Supercritical Carbon

ABSTRACTA novel chemical route in thin film formation that includes the use of inorganic and organic peroxides and metal organic complexes soluble in supercritical carbon dioxide has been investigated for the deposition of alumina, titania and zirconia thin films at low temperatures (<150°C). The metal organic precursors used include: Al(acac)3, OTi(tmhd)2, and Zr(acac)4. Tert-butyl peroxide, and a 30% aqueous solution of hydrogen peroxide were used as oxidants. Depositions were carried out in a 25 ml hot wall reactor at pressures ranging from 2100 to 3900 psi at 80-140°C. The deposited thin films were investigated by using X-ray photoelectron spectroscopy (XPS) and transmission Fourier transform infrared spectroscopy (FTIR). XPS and FTIR results indicate the formation of metal oxides thin films with some bonded carbon. The deposition temperatures achieved in this process are substantially lower than those used in conventional vacuum deposition techniques making feasible the deposition on temperature sensitive substrates and organic materials required for the development of hybrid organic/inorganic devices. Processing at low temperatures in supercritical carbon dioxide may provide the basis for the development of an alternative, environmentally friendly, thin film deposition technique for the processing of nanostructures.

Silk–Pt composite integration by supercritical carbon dioxide assisted electroless plating for medical devices application

2017 ◽  
Vol 175 ◽  
pp. 34-37 ◽  
Author(s):  
Wan-Ting Chiu ◽  
Yuma Tahara ◽  
Chun-Yi Chen ◽  
Tso-Fu Mark Chang ◽  
Tomoko Hashimoto ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Medical Devices ◽  
Electroless Plating ◽  
Supercritical Carbon
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