Environmentally friendly, antibacterial materials from recycled keratin incorporated electrospun PLA films with tunable properties

Ertek, Dicle Ayca; Şanli, Nazmiye Özlem; Menceloǵlu, Yusuf́ Z.; Seven, Senem Avaz

doi:10.1016/j.eurpolymj.2022.111804

Cited by 17 publications

(3 citation statements)

References 49 publications

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“…In addition, fiber diameters are observed to decrease with increasing WK content. This can be attributed to the decreased amorphous content around WK fibers with PLA incorporation . But at the same time, there are more fiber interweaving structure and fiber aggregation phenomenon, the roughness of the fiber surface increases, and the surface characteristics are granular and uneven.…”

Section: Resultsmentioning

confidence: 99%

“…Typically, low molecular weight proteins are mixed with high molecular weight polymers to improve their spinnability. At present, studies have shown that WK can be mixed with poly(ethylene oxide) (PEO), polyamide 6 (PA6), polyvinylpyrrolidone(PVP), polyvinyl acetal (PVA), polycaprolactone (PCL), and polylactic acid (PLA) by the electrospinning technology to achieve applications in tissue engineering, medical textiles, and flexible pressure sensors. Additionally, natural polymers enhance electrospinning spinnability of protein nanofibers, offering superior biodegradability compared to synthetics .…”

Section: Introductionmentioning

confidence: 99%

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Biocompatible Polylactic Acid/Wool Keratin/Carbon Nanotubes Fibers via Electrospinning as a Flexible Pressure Electronic Sensor

Li,

Song,

Zhang

et al. 2024

ACS Appl. Electron. Mater.

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The extraction of wool keratin protein (WK) from wool waste has garnered attention for its potential application in tissue engineering, drug delivery, and flexible pressure sensors, contributing to the efficient utilization of waste wool. Herein, we utilized biobased polylactic acid (PLA) as the polymer for electrospinning and incorporated carbon nanotubes (CNTs) as conductive additives in the electrospinning solution. WK, extracted from waste wool via a reduction method, exhibited excellent dispersibility and stability of carbon nanotubes in the spinning solution, enabling the preparation of a highly sensitive resistive flexible pressure sensor. The results demonstrate that the PLA/ WK/CNTs @CNTs flexible pressure sensor exhibits a high sensitivity of 12.64 kPa −1 and a fast response/recovery time of 63 ms. Moreover, it possesses the lowest detection limit of 5.64 Pa, excellent stability over 6000 cycles, and good linearity within a wide working range (0−30 kPa), making it suitable for wearable biometric monitoring applications such as finger pressure, finger bending, and pulse monitoring, as well as visual interaction such as interactive blankets for infants. Therefore, we propose a high-quality wool waste utilization scheme, showcasing the potential application of discarded wool in smart living.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biocompatible Polylactic Acid/Wool Keratin/Carbon Nanotubes Fibers via Electrospinning as a Flexible Pressure Electronic Sensor

Li,

Song,

Zhang

et al. 2024

ACS Appl. Electron. Mater.

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“…This is significant because S. aureus often forms biofilms that reduce the effectiveness of conventional antibiotics. Good dispersion of nanochitosan in solution also allows for even distribution in the environment surrounding the bacteria, enhancing their ability to interact with a large number of S. aureus bacterial cells , Moreno-Serna et al (2023), Chia et al (2023), Ertek et al (2023), Zhu et al (2022.…”

Section: Colony Reductionmentioning

confidence: 99%

The Effect of Catechins and Nanochitosan on Reducing Bacterial Colonies and Material Performance in Packaging Films Based on Pla/PCL Blend

Salim,

Rihayat,

Fitria

et al. 2023

Int. J. Res. Granthaalayah

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The extensive utilization of petrochemical polymer-based plastics has led to significant environmental challenges. A viable solution involves the incorporation of high-quality biomaterials as a substitute for traditional plastics. In pursuit of this goal, Polylactic Acid (PLA) and Polycaprolactone (PCL) biopolymers were combined with catechin and nano chitosan additives to innovate food packaging materials. The process involved the utilization of a screw extruder for mixing and melting. The sample formulation employed a combination of PLA polymer (9.5 g) and PCL (0.5 g). The variations in catechin (0%, 5%, 10%, 15%, 20%, 25%, and 30%), while nano chitosan was added in concentrations (5%, 10%, 15%, 20%, 25%, and 30%). The highest tensile strength recorded, at 45.10 MPa, was achieved by sample SA4, as indicated by tensile strength testing, FTIR analysis, and colony reduction. FT-IR analysis revealed the presence of functional groups, namely N-H, C-H, C=O, and C-O, signifying successful interactions between the PLA/PCL matrix blend and the additive components of nanochitosan and catechins. Remarkably, sample SA4 exhibited a remarkable 96% reduction in S. aureus bacterial colonies following 24 hours of storage.

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Biodegradable cellulose-base aerogel films with high solar emissivity for agricultural thermal management

Chen,

Tan,

Dai

et al. 2024

Cellulose

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Environmentally friendly, antibacterial materials from recycled keratin incorporated electrospun PLA films with tunable properties

Cited by 17 publications

References 49 publications

Biocompatible Polylactic Acid/Wool Keratin/Carbon Nanotubes Fibers via Electrospinning as a Flexible Pressure Electronic Sensor

Biocompatible Polylactic Acid/Wool Keratin/Carbon Nanotubes Fibers via Electrospinning as a Flexible Pressure Electronic Sensor

The Effect of Catechins and Nanochitosan on Reducing Bacterial Colonies and Material Performance in Packaging Films Based on Pla/PCL Blend

Biodegradable cellulose-base aerogel films with high solar emissivity for agricultural thermal management

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