Embroidery Technology for Medical Textiles

Karamuk, Erdal; Düring, Michael; Wagner, Bridget K.; Bischoff, B.; Ferrario, Roberta; Billia, M.; Seidl, Roland; Panizzon, R; Wintermantel, E.

doi:10.1533/9781845693145.5.200

Cited by 8 publications

(8 citation statements)

References 5 publications

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“…[6][7][8] Braided or embroidered fabrics often encounter problems of nutrient transmission, poor cell seeding, infiltration, matrix production, and inadequate mechanical strength. [9][10][11] Knitted poly (D,L-lactide-co-glycolide) (PLGA) scaffolds have been shown to possess good mechanical strength and internal communicating spaces and have been effectively used for tendon tissue engineering. 12 However, this scaffold required gel systems, such as fibrin or collagen gel, for cell seeding and was found to be unsuitable for ligament reconstruction in the knee joint, because the cell-gel composite dissociated from the scaffold during motion.…”

Section: Introductionmentioning

confidence: 99%

Characterization of a Novel Polymeric Scaffold for Potential Application in Tendon/Ligament Tissue Engineering

et al. 2006

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Unlike braided fabrics, knitted scaffolds have been proven to favor deposition of collagenous connective tissue matrix, which is crucial for tendon/ligament reconstruction. But cell seeding of such scaffolds often requires a gel system, which is unstable in a dynamic situation, especially in the knee joint. This study developed a novel, biodegradable nano-microfibrous polymer scaffold by electrospinning PLGA nanofibers onto a knitted PLGA scaffold in order to provide a large biomimetic surface for cell attachment. Porcine bone marrow stromal cells were seeded onto either the novel scaffolds by pipetting a cell suspension (Group I) or the knitted PLGA scaffolds by immobilizing in fibrin gel (Group II). Cell attachment at 36 hours, cell proliferation and extracellular matrix synthesis at 1 week, and mechanical properties over 2 weeks were investigated. Cell attachment was comparable and cell proliferation was faster in Group I. Moreover, cellular function was more actively exhibited in Group I, as evident by the higher expression of collagen I, decorin, and biglycan genes. Thus, this novel scaffold, facilitating cell seeding and promoting cell proliferation, function, and differentiation, could be applied with promise in tissue engineering of tendon/ligament.

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Section: Introductionmentioning

confidence: 99%

Characterization of a Novel Polymeric Scaffold for Potential Application in Tendon/Ligament Tissue Engineering

et al. 2006

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“…With respect to the different experimental outcomes of Karamuk et al 17 and ourselves, the special importance of our work with antimicrobial treatments of knitted fabric becomes especially apparent; not only were we able to prevent a decrease in the tensile strength, but we were actually able to increase it as a result of the treatment process.…”

Section: Resultsmentioning

confidence: 88%

“…In reviewing references from the field of antimicrobial treatment of knitted materials, we found the study of Karamuk et al 17 In their work, an interlocking, knitted fabrics, both uncoated and gelatin-coated, were compared to gelatin-coated and uncoated embroidered fabrics. Their study concluded that the tensile strength of the knitted fabrics used in their experiment decreased after the gelatin treatment.…”

Section: Resultsmentioning

confidence: 99%

“…This effect considerably increases the fabric's stiffness. 17 Zone I is the bactericidal zone, and zone II is the bacteriostatic zone. The plus sign indicates the total inhibition of the growth of the indicator culture over the whole surface of the Petri dish, and the asterisk indicates the occurrence of the individual microorganism colony on the Petri dish.…”

Section: Resultsmentioning

confidence: 99%

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Influence of an antimicrobial treatment on the strength properties of polyamide/elastane weft‐knitted fabric

Mihailović

Asanovic²,

Simovic

et al. 2006

J of Applied Polymer Sci

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Polyamide/elastane weft-knitted fabric, as a suitable compression material, was treated with gentamicin sulfate and a natural antimicrobial preparation of the autochthonous essential oil of Picea abies. The antimicrobial bioactivity of the treated fabric in vitro was tested for different groups of bacteria and a fungus (Staphylococcus aureus, Escherichia coli, Klabsiella, and Candida albicans). The results of the experiment showed that the antimicrobial-treated knitted fabric expressed a wide range of bactericidal, fungicidal, and bacteriostatic activity versus the various groups of microorganisms. The influence of the antimicrobial treatments on the tensile strength and elongation, tear strength and elongation, stiffness, and elasticity of the chosen test material was also examined. These properties of the fabric were changed after the antimicrobial treatments. Both the tensile strength and tear strength increased about 14% after the treatment. The scope of the experiment also included the testing of the compression distribution at the skin/ knitted fabric interface on the legs of human test subjects. Pressure generated by the application of the knitted fabric on the leg surface increased in correlation with a decrease in the leg circumference. On the basis of these observations, it was concluded that the knitted fabric could be used as a compression textile before and after the treatment.

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“…While such scaffolds possess high initial mechanical properties and show good results in in vitro conditions (Karamuk et al 1999;Laurencin et al 1999;Van Eijk et al 2004;Cooper et al 2005Cooper et al , 2006Lu et al 2005;Freeman et al 2007), there are only a few studies demonstrating their in vivo efficacy. In one study, braided PLLA scaffolds have shown favourable results 3 months post-implantation in a rabbit model (Cooper et al 2007), but the long-term outcome of such scaffolds is still unknown.…”

Section: Braided and Woven Scaffoldsmentioning

confidence: 99%