Indigenous Indonesian Wild Silkworm Cocoon of Attacus atlas as Biocompatible Film Biomaterial

Nindhia, Tjokorda Gde Tirta; Knejzlı́k, Zdeněk; Ruml, Tomáš; Surata, I Wayan

doi:10.1088/1757-899x/204/1/012011

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…Other natural product such as seaweed [12] are commonly use as medicine, coral reef [13][14][15] is used for fabrication of advance composite. Some importance natural fiber also studied as composite reinforcement such as silk [16][17][18][19][20][21][22], stinging nettle fiber [23], coconut coir [24], and fiber of Hibiscus tiliaceus [25].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Vacuum Pressure during Autoclave Curing on Tensile Strength of Epoxy Composite Reinforced Natural Fiber of Cordyline australis with Sea Water Surface Treatment

Purwadnyana

Nindhia

Surata

et al. 2022

MSF

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In this work the composite made from epoxy resin as a matrix and natural fiber of Cordylineaustralis was used as reinforcement. The fiber was prepared from the process of water retting in fresh water for 1 weeks followed by drying. The final process was soaked in sea water to understand the effect of soaked in sea water to the adhesion of the fiber and matrix. The fiber was immersed in 5 hour and also 7 hours in sea water to be compared with the fiber that is was not immersed in sea water. The curing process also consist of 2 variation processes namely hand layup and vacuum pressure. The tensile test is conducted to investigate the final product of composite. It is found that the vacuum process resulting better tensile strength (34.610 MPa) in the sample of epoxy without fiber reinforcement (19.818 MPa for hand layup). In general for composite that are made with fiber without immersion in sea water, the tensile strength for the hand layup increase with addition of fiber fraction. In the other hand the tensile strength is decrease with addition of fiber fraction for vacuum process. For the fiber reinforcement, the hand layup resulting in better reinforcement comparing the vacuum process. .

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Section: Introductionmentioning

confidence: 99%

The Effect of Vacuum Pressure during Autoclave Curing on Tensile Strength of Epoxy Composite Reinforced Natural Fiber of Cordyline australis with Sea Water Surface Treatment

Purwadnyana

Nindhia

Surata

et al. 2022

MSF

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“…Other African source of non-mulberry wild silkworm cocoon also come into attention like Gonometapostica, Epiphorabauhiniae, Anaphe panda, and Argemamimosae [8]. In Japan, the wild silk from species Samia cynthiaricini was well studied and the fibroin from was isolated from its cocoons [9,10]. In Korea, the biomaterial film was developed by using fibroin from Antheraea pernyi [11] It is the purpose of this work to investigate the effect of various fiber yield protocols from species of Antheraea pernyi tensile strength and diameter of the fiber provided.…”

Section: Introductionmentioning

confidence: 99%

Tensile Strength of Single Fiber of Antheraea pernyi Cocoon Prepared by Various Protocols

Pamungkas

Nindhia

Surata

et al. 2020

MSF

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The cocoon of Antheraea pernyi was grown in the laboratory with tropical artificial conditioning. The caterpillar was fed with Lantana camara leaf. They are 3 protocols provided to yield single fiber from the cocoon. The first protocol developed in this work was based on the single fiber drawing directly from the live caterpillar during cocoon stage establishment (forcibly silking). The single fiber was gently pulled and rolled up manually. The second protocol was conducted by degumming the cocoon with boiling in 5%NaoH solution. The cocoon was boiled in 5% NaOH solution and gently stirred. When the fiber was found detached from the cocoon, the boiling process was stopped, and the fiber obtained was washed with water and dried in the oven. The third protocol was simple boiling of the cocoon with water and gently stirring until the cocoon disintegrated to become a fiber. The fiber obtained was washed and dried in the oven. The first protocol by forcibly silking produced fiber with highest tensile strength of average value of 149.251 MPa. The other protocols introduced in this work resulted in lower tensile strength. Alkali treatment provided average tensile strength of 43.833 MPa and boiling in water resulted in tensile strength 52.571 MPa.

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“…Sutures can be made from nylon [2], polyethylene, polyester, copolymerized lactide and glycolide [1], Thermoplastic poly urethane (TPU) [3], polydioxanone, polyglycolic acid [4], polypropylene [3,4], silk [5][6][7][8], and catgut [9]. Two important properties are non-reactivity to provoke the least inflammatory response and failure load, to provide adequate tension for wound closure [10].…”

Section: Introductionmentioning

confidence: 99%

Comparison Tensile Strength of Natural and Synthetic Absorbable Sutures

et al. 2019

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Objective: The aim of the investigation is to evaluate and to compare the tensile strength of commercial natural and synthetic absorbable suturematerials currently used in surgery. The natural absorbable sutures of chromic catgut are prepared for this purpose as well as commercial syntheticabsorbable sutures made from polyglycolide.Methods: The analysis has been carried out following the standard test method for tensile strength and Young’s modulus of fiber ASTM C1557-03.Measuring the diameter of each suture has been carried out with an optical microscope to determine the accuracy of manufacturers’ data. Tensiletesting has been performed to evaluate the tensile strength of each type of sutures. The modulus elasticity and strain (ϵ) obtained are also presented.Results: The results show that sutures made from braided synthetic material of polyglycolide (violet coated) present a tensile strength remarkablysuperior (1070.292 MPa) to that of natural absorbable sutures of chromic catgut (392.276 MPa). Using optical macro microscope analysis,monofilament sutures present less surface irregularities than multifilament polyglycolide sutures. Chromic catgut monofilament sutures present lesssurface irregularities than multifilament polyglycolide.Conclusion: Tensile test of absorbable sutures was conducted in this research. Two types of absorbable sutures were investigated and compared. It isfound that sutures made from braided synthetic material of polyglycolide (violet coated) having much better tensile strength comparing with suturesmade from natural material (chromic catgut monofilament).

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Indigenous Indonesian Wild Silkworm Cocoon of Attacus atlas as Biocompatible Film Biomaterial

Cited by 4 publications

References 11 publications

The Effect of Vacuum Pressure during Autoclave Curing on Tensile Strength of Epoxy Composite Reinforced Natural Fiber of <i>Cordyline australis</i> with Sea Water Surface Treatment

The Effect of Vacuum Pressure during Autoclave Curing on Tensile Strength of Epoxy Composite Reinforced Natural Fiber of <i>Cordyline australis</i> with Sea Water Surface Treatment

Tensile Strength of Single Fiber of <i>Antheraea pernyi</i> Cocoon Prepared by Various Protocols

Comparison Tensile Strength of Natural and Synthetic Absorbable Sutures

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