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Tensile Properties and Biocompatibility of Indonesian Wild Silk Cricula Trifenestrata: A Preliminary Study

Tjokorda Gde Tirta Nindhia1, Zdenek Knejzlik2, Tomas Ruml2 , and Tjokorda Sari Nindhia3
1.Department of Mechanical Engineering, Engineering Faculty, Udayana University, Jimbaran, Bali, Indonesia, 80361
2.Faculty of Food and Biochemical Technology, Institute of Chemical Technology of Prague, Technicka 5, 166 28 Pragua Czech Republic
3.Faculty of veterinary Madicine, Udayana University, Jl. P.B. Sudirman, Denpasar, bali, Indonesia
Abstract—As it is reported in many publication about successful work of many research in developing biomaterial from Bombyx mori silk which is attract many researchers to observe the possibilities in using different type of the silk other than Bombyx mori for biomaterial. Wild silks which is a silk that is not obtained from domesticated species are become object to explorer for better result for biomaterial. This research focused on Wild silk cocoon of Cricula trifenestrata obtained from Indonesian source. In this study the degumming process to separate the fiber from the cocoon was explored and the result is a separated fiber that is tested for its tensile strength and biocompatibility. It can be concluded that the silk obtained from cocoon of Cricula trifenestrata has good biocompatibility properties. The silk can be prepared by degumming method of boiling in 0.01 M NaOH for 1 hour. The modulus elasticity of the single fiber of Cricula trifenestrata is about 3681 MPa. The ultimate tensile strength is obtained about 162 MPa together with value of failure strain about 0.12.

Index Terms—tensile, biocompatibility, silk, Cricula trifenestrata

Cite: Tjokorda Gde Tirta Nindhia, Zdenek Knejzlik, Tomas Ruml, and Tjokorda Sari Nindhia, "Tensile Properties and Biocompatibility of Indonesian Wild Silk Cricula Trifenestrata: A Preliminary Study," Journal of Medical and Bioengineering, Vol. 3, No. 2, pp. 140-143, June 2014. Doi: 10.12720/jomb.3.2.140-143
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