Testing the effects of fabrication parameters on the post-fabrication shape change of a three-dimensional printed textile platform

Khan, Zahangir; He, Han; Chen, Xiaochen; Sydänheimo, Lauri; Ukkonen, Leena; Virkki, Johanna

doi:10.1177/0040517521994678

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…Additionally, we did not assess the impact of infill patterning on the mechanical strength of these scaffolds. However, our previous work [ 22 , 27 ] showed that LAY-FOMM60 is quite elastic with significantly lower mechanical strength than PLA, which is in agreement with other mechanical testing of these materials [ 29 , 30 , 31 ]. Even though this material was able to promote bone repair in a mandible defect, this would have to be considered for load bearing applications and regeneration in large bone defects.…”

Section: Discussionsupporting

confidence: 86%

A Nanoporous 3D-Printed Scaffold for Local Antibiotic Delivery

Ahangar,

Li,

Nkindi

et al. 2023

Micromachines

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Limitations of bone defect reconstruction include poor bone healing and osteointegration with acrylic cements, lack of strength with bone putty/paste, and poor osteointegration. Tissue engineering aims to bridge these gaps through the use of bioactive implants. However, there is often a risk of infection and biofilm formation associated with orthopedic implants, which may develop anti-microbial resistance. To promote bone repair while also locally delivering therapeutics, 3D-printed implants serve as a suitable alternative. Soft, nanoporous 3D-printed filaments made from a thermoplastic polyurethane and polyvinyl alcohol blend, LAY-FOMM and LAY-FELT, have shown promise for drug delivery and orthopedic applications. Here, we compare 3D printability and sustained antibiotic release kinetics from two types of commercial 3D-printed porous filaments suitable for bone tissue engineering applications. We found that both LAY-FOMM and LAY-FELT could be consistently printed into scaffolds for drug delivery. Further, the materials could sustainably release Tetracycline over 3 days, independent of material type and infill geometry. The drug-loaded materials did not show any cytotoxicity when cultured with primary human fibroblasts. We conclude that both LAY-FOMM and LAY-FELT 3D-printed scaffolds are suitable devices for local antibiotic delivery applications, and they may have potential applications to prophylactically reduce infections in orthopedic reconstruction surgery.

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Section: Discussionsupporting

confidence: 86%

A Nanoporous 3D-Printed Scaffold for Local Antibiotic Delivery

Ahangar,

Li,

Nkindi

et al. 2023

Micromachines

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“…Three-dimensional printing is a 3D technology that completes objects in three dimensions, providing more freedom in design that enables complex structures. [1][2][3] It is also easy to produce small quantities of various and customized products, which can increase the efficiency of costs by making individual customized parts. 4 Thus, as 3D printing technology and materials are further developed and the distribution of personal fused deposition modeling (FDM) methods accelerates, expectations for expanding the market for the convergence and complexity of 3D printing technology and materials are increasing.…”

Section: D Printing and Methodsmentioning

confidence: 99%

Development of three-dimensional printed cultural fashion products using symbols of longevity

Lee

Koo

2022

Textile Research Journal

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The COVID-19 pandemic has impacted the tourism industry, which makes it necessary to consider a variety of ways to overcome these challenges. The continuous effort to develop unique cultural fashion products and their original designs is necessary. This study aimed to develop cultural fashion products that people want to wear and purchase to revive the traditional symbols of longevity, called “shipjangsaeng,” with three-dimensional (3D) printing technology. Modernizing the symbols and the 3D printing technology can create new values of the convergence of tradition and technologies while providing customized benefits without inventory concerns. To achieve this, firstly, the preferred traditional symbols were extracted through a preference survey. Secondly, designs were virtually three-dimensionally simulated and surveyed to investigate the preferred designs. Thirdly, the selected designs were three-dimensionally modeled and printed, their flexural strength was tested, and they were fabricated into wearable products. The major results were as follows: (a) the most preferred patterns of longevity symbols were the sun and water/a wave; (b) the preferred item types were dresses and T-shirts using new technology such as 3D printing in achromic colors; (c) eight designs were proposed and the most preferred designs were designs 4 (a mini dress with water/wave patterns), 6 (a dress with a sun pattern), 7 (a T-shirt with a sun pattern), and 8 (a dress with a sun pattern); and (d) the four designs were fabricated into wearable cultural fashion products. The results of this study can provide insights to fashion designers and product developers when developing cultural fashion products by modernizing and reviving traditional symbols, enabling new values.

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“…Dimensional stability describes the dimensional change that occurs in the length or width direction when the fabric is subjected to higher temperatures. 44 Dimensional stability affects the service life of the fabric and is an important quality indicator of the garment. 45 The dimensional stability analysis of the sample is shown in Table 5.…”

Section: Dimensional Changesmentioning

confidence: 99%

Enhanced fluorescent performance of modacrylic/cotton blended fabric by pretreatment with sodium chlorite bleaching

Zhang

Shiu

et al. 2022

Textile Research Journal

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The chromaticity coordinates and luminance factor are important indicators of the fluorescent dyeing performance of fluorescent dyed fabric. However, with the current bleaching pretreatment process, the chromaticity coordinates and luminance factor of fluorescent yellow dyed modacrylic/cotton blended fabric usually do not meet the requirements of standard ISO 20471. Here we report a new type of bleaching process method via sodium chlorite to solve the problem of yellowing of the background color of the modacrylic/cotton blended fabric. Compared with hydrogen peroxide bleaching, the whiteness of the modacrylic/cotton blended fabric was increased by 13.52% with sodium chlorite bleaching. The color performance analysis showed that the chromaticity coordinates and luminance factor of fluorescent yellow dyed modacrylic/cotton fabric after exposure to xenon light or washing cycles could meet the standard ISO 20471 requirements. Moreover, the fluorescent yellow dyed fabric has good color fastness, such as rubbing resistance, perspiration, laundering at 60°C, and dimensional stability. In addition, the fluorescent yellow dyed blended fabric also has flame retardant performance. Our work may provide a method for the preparation of high-visibility fluorescent yellow fabric with flame retardant performance. It could be used for multifunctional personal protective equipment.

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Testing the effects of fabrication parameters on the post-fabrication shape change of a three-dimensional printed textile platform

Cited by 4 publications

References 23 publications

A Nanoporous 3D-Printed Scaffold for Local Antibiotic Delivery

A Nanoporous 3D-Printed Scaffold for Local Antibiotic Delivery

Development of three-dimensional printed cultural fashion products using symbols of longevity

Enhanced fluorescent performance of modacrylic/cotton blended fabric by pretreatment with sodium chlorite bleaching

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