Fabrication and characterization of starch-TPU based nanofibers for wound healing applications

Mistry, Prarthana; Chhabra, Rohan; Muke, S.; Narvekar, Aditya; Sathaye, Sadhana; Jain, Ratnesh; Dandekar, Prajakta

doi:10.1016/j.msec.2020.111316

Cited by 58 publications

(33 citation statements)

References 38 publications

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“…The observed peaks in the FTIR spectra of the PU nanofibrous mat were assigned as 3304 cm −1 (N-H stretching) , 2970 cm −1 (CH 2 stretching), 1703 cm −1 (C=O stretching), and 1222 cm −1 (C-O stretching). The peaks are in agreement with the PU reports in the literature [43,48]. The observed peaks in the FTIR spectra of the BCE were assigned as 3300 cm −1 (OH groups) , 2937 cm −1 (=C-H stretching), 1027 cm −1 (C-O stretching), and 923 cm −1 (=C-H) [51].…”

Section: Characterizations Of the Nanofibrous Matssupporting

confidence: 90%

“…wound dressings [43], protective clothing [44], packaging [45], and wearable sensors [46]. Developing a colourimetric sensor that utilizes a mixture of black carrot extract and PU might be an option in a gas sensor for protective clothing.…”

Section: Introductionmentioning

confidence: 99%

“…PU is widely used for its low cost, chemical resistance, tear resistance, abrasive resistance, and high load-bearing properties [40,41]. Electrospun PU textiles have been used as filters [42], wound dressings [43], protective clothing [44], packaging [45], and wearable sensors [46]. Developing a colourimetric sensor that utilizes a mixture of black carrot extract and PU might be an option in a gas sensor for protective clothing.…”

Section: Introductionmentioning

confidence: 99%

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A Facile Design of Colourimetric Polyurethane Nanofibrous Sensor Containing Natural Indicator Dye for Detecting Ammonia Vapour

Pakolpakçıl

Draczyński

2021

Materials

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Chemicals and industrial gases endanger both human health and the environment. The inhalation of colourless ammonia gas (NH3) can cause organ damage or even death in humans. Colourimetric materials are becoming more popular in the search for smart textiles for both fashion and specific occupational applications. Colourimetric textile sensors based on indicator dyes could be very useful for detecting strong gaseous conditions and monitoring gas leaks. In this study, black carrot extract (BCE) as a natural indicator dye and polyurethane (PU) polymer were used to develop a colourimetric sensor by electrospinning. The properties of the BCE/PU nanofibrous mats were characterized by the Fourier transform infrared spectrum (FTIR) and a scanning electron microscope (SEM). The BCE caused a change in the morphology of the PU nanofibrous mat. To evaluate the colour shift due to NH3 vapour, the BCE/PU nanofibrous mats were photographed by a camera, and software was used to obtain the quantitative colour data (CIE L*a*b). The BCE/PU nanofibrous exhibited a remarkable colour change from pink–red to green–blue under NH3 vapour conditions with a fast response time (≤30 s). These findings showed that colourimetric nanofibrous textile sensors could be a promising in situ material in protective clothing that changes colour when exposed to harmful gases.

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Section: Characterizations Of the Nanofibrous Matssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Facile Design of Colourimetric Polyurethane Nanofibrous Sensor Containing Natural Indicator Dye for Detecting Ammonia Vapour

Pakolpakçıl

Draczyński

2021

Materials

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“…After the immobilization of PHMB on PGs, the breaking elongation of the fiber increased to some extent (2.3 ± 0.2 cN/tex). That could be explained by the formed network in the presence of hydrogen bonds of PHMB and TPU/GMA 29,30 . According to other research, Zhou et al reported a novel surgical suture possessing with antibacterial activity whose breaking strength was 1.05 ± 0.08 cN/Tex by wet spinning 15 .…”

Section: Resultsmentioning

confidence: 97%

Polyhexamethylene biguanide hydrochloride anchored polymeric elastic fibers with robust antibacterial performance

Gong

Zhang²,

Luo

et al. 2021

J of Applied Polymer Sci

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Elastic fibers have been widely applied for the fabrication of biomedical textiles, artificial extracellular matrix, and functional garments, as where antibacterial property is one of the indispensable features. Herein, we developed a fresh type of non‐leaching antibacterial fiber that could effectively inactivate bacteria with durable performance to circumvent above concerns. In detail, we firstly synthesized a precursor polymer (PS‐GMA) based on styrene and glycidyl methacrylate (GMA) through free radical polymerization, then blended PS‐GMA with thermoplastic polyurethane (TPU) and processed the blend into fiber through wet spinning technology. Finally, the obtained fiber was covalently modified by polyhexamethylene biguanide hydrochloride (PHMB). The experimental results showed that the resultant fiber (named as PGPs) exhibited a strong bactericidal ability to both Staphylococcus aureus and Escherichia coli, as well as maintained excellent antibacterial properties even after ultraviolet irradiation for 7 days or 50 washing cycles. Furthermore, we explored the sterilization mechanism with respect to the bacterial morphologies and the activity of the respiratory chain dehydrogenase. In addition, the biocidal efficacy of the prepared fiber could remain approximately 100% after eight consecutive antibacterial cycles. Collectively, this work exhibited an attempt in exploitation of the intrinsically antibacterial fiber with long‐run function duration by an economical tactic.

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“…In AM, PC applications are still limited in the literature, with research mainly related to acoustic applications [44] and heat pipes [45]. TPU is also an elastic material, employed in many industrial and other environmental parts [46,47]. Indicative applications of TPU material are in mechanical seals [48,49] or more advanced applications, such as flexible electronics [50], force sensors [51], pneumatic actuators [52] and pharmaceutical applications [53].…”

Section: Introductionmentioning

confidence: 99%

Strain Rate Sensitivity of Polycarbonate and Thermoplastic Polyurethane for Various 3D Printing Temperatures and Layer Heights

et al. 2021

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In this work, strain rate sensitivity was studied for 3D-printed polycarbonate (PC) and thermoplastic polyurethane (TPU) materials. Specimens were fabricated through fused filament fabrication (FFF) additive manufacturing (AM) technology and were tested at various strain rates. The effects of two FFF process parameters, i.e., nozzle temperature and layer thickness, were also investigated. A wide analysis for the tensile strength (MPa), the tensile modulus of elasticity (MPa), the toughness (MJ/m3) and the strain rate sensitivity index ‘m’ was conducted. Additionally, a morphological analysis was conducted using scanning electron microscopy (SEM) on the side and the fracture area of the specimens. Results from the different strain rates for each material were analyzed, in conjunction with the two FFF parameters tested, to determine their effect on the mechanical response of the two materials. PC and TPU materials exhibited similarities regarding their temperature response at different strain rates, while differences in layer height emerged regarding the appropriate choice for the FFF process. Overall, strain rate had a significant effect on the mechanical response of both materials.

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Fabrication and characterization of starch-TPU based nanofibers for wound healing applications

Cited by 58 publications

References 38 publications

A Facile Design of Colourimetric Polyurethane Nanofibrous Sensor Containing Natural Indicator Dye for Detecting Ammonia Vapour

A Facile Design of Colourimetric Polyurethane Nanofibrous Sensor Containing Natural Indicator Dye for Detecting Ammonia Vapour

Polyhexamethylene biguanide hydrochloride anchored polymeric elastic fibers with robust antibacterial performance

Strain Rate Sensitivity of Polycarbonate and Thermoplastic Polyurethane for Various 3D Printing Temperatures and Layer Heights

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