The Design and Evaluation of a Burn Wound Covering

Park, G. B.; Courtney, J. M.; McNair, A.; Gaylor, J.D.S.

doi:10.1243/emed_jour_1978_007_006_02

Cited by 17 publications

(4 citation statements)

References 11 publications

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“…Quantitatively speaking, the water vapor transmission rate (WVTR, defined as the steady flow of water vapor per unit area of surface in unit time at a specified humidity and temperature 30 ) of the SF is ~800 tested by ASTM (American Society for Testing Materials) E96-98 31 32 33 34 . And the WVTR of the normal skin is reported to be 200–500 gm −2 day −1 31 35 36 , thus, despite the existence of the device, the skin under it can breathe normally. Consequently, the device can be left in place for 7 days when considering the biocompatibility alone.…”

Section: Resultsmentioning

confidence: 99%

Breathable and Stretchable Temperature Sensors Inspired by Skin

Chen

et al. 2015

Sci Rep

241

218

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Flexible electronics attached to skin for healthcare, such as epidermal electronics, has to struggle with biocompatibility and adapt to specified environment of skin with respect to breath and perspiration. Here, we report a strategy for biocompatible flexible temperature sensors, inspired by skin, possessing the excellent permeability of air and high quality of water-proof by using semipermeable film with porous structures as substrate. We attach such temperature sensors to underarm and forearm to measure the axillary temperature and body surface temperature respectively. The volunteer wears such sensors for 24 hours with two times of shower and the in vitro test shows no sign of maceration or stimulation to the skin. Especially, precise temperature changes on skin surface caused by flowing air and water dropping are also measured to validate the accuracy and dynamical response. The results show that the biocompatible temperature sensor is soft and breathable on the human skin and has the excellent accuracy compared to mercury thermometer. This demonstrates the possibility and feasibility of fully using the sensors in long term body temperature sensing for medical use as well as sensing function of artificial skin for robots or prosthesis.

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Section: Resultsmentioning

confidence: 99%

Breathable and Stretchable Temperature Sensors Inspired by Skin

Chen

et al. 2015

Sci Rep

241

218

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“…Additionally, the sensor size can be significantly scaled down with the pattern width as small as 100 and 50 μm, represented in Figure S5, Supporting Information. The sticky and stretchable patch presented here exhibited unprecedented water permeability (>20 g h –1 m –2 at a thickness of 250 μm) because of its porous structure, measured according to ASTM F1249 (standard test method for water vapor transmission rate using a modulated infrared sensor), which is generally sufficient and more than the normal skin permeability of 8–20 g h –1 m –2 . − Moreover, the films with water vapor permeability (WVP) of 20–40 g h –1 m –2 are also reported but are not adherent to skins. ,− Recently, in comparison to polydimethylsiloxane, Ecoflex, and Solaris, the stretchable elastomeric material Silbione (RT Gel 4717 A/B, Bluestar Silicones, USA) showed promising characteristics of the material like stretchability and sticky nature with WVP as ∼10 g h –1 m –2 at a thickness of 100 μm, but it is very expensive . In comparison to the above-mentioned materials, the patch exhibited high WVP values with stretchability and sticky nature.…”

Section: Results and Discussionmentioning

confidence: 90%

Laser-Processed Nature-Inspired Deformable Structures for Breathable and Reusable Electrophysiological Sensors toward Controllable Home Electronic Appliances and Psychophysiological Stress Monitoring

Chae

Kwon

Kim

et al. 2019

ACS Appl. Mater. Interfaces

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Physiological monitoring through skin patch stretchable devices has received extensive attention because of their significant findings in many human–machine interaction applications. In this paper, we present novel nature-inspired, kiri-spider, serpentine structural designs to sustain mechanical deformations under complex stress environments. Strain-free mechanical structures involving stable high areal coverage (spiderweb), three-dimensional out-of-plane deformations (kirigami), and two-dimensional (2D) stretchable (2D spring) electrodes demonstrated high levels of mechanical loading under various strains, which were verified through theoretical and experimental studies. Alternative to conventional microfabrication procedures, sensors fabricated by a facile and rapid benchtop programmable laser machine enabled the realization of low-cost, high-throughput manufacture, followed by transferring procedures with a nearly 100% yield. For the first time, we demonstrated laser-processed thin (∼10 μm) flexible filamentary patterns embedded within the solution-processed polyimide to make it compatible with current flexible printed circuit board electronics. A patch-based sensor with thin, breathable, and sticky nature exhibited remarkable water permeability >20 g h–1 m–2 at a thickness of 250 μm. Moreover, the reusability of the sensor patch demonstrated the significance of our patch-based electrophysiological sensor. Furthermore, this wearable sensor was successfully implemented to control human–machine interfaces to operate home electronic appliances and monitor mental stress in a pilot study. These advances in novel mechanical architectures with good sensing performances provide new opportunities in wearable smart sensors.

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“…2 b). Given that the WVTR of normal skin is 150–450 g m −2 day −1 , the fabricated biofilm-textile composites remained breathable 48 .…”

Section: Resultsmentioning

confidence: 99%

Endowing textiles with self-repairing ability through the fabrication of composites with a bacterial biofilm

Cai

Abdali

Saldanha

et al. 2023

Sci Rep

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To address the increasing environmental footprint of the fast-growing textile industry, self-repairing textile composites have been developed to allow torn or damaged textiles to restore their morphological, mechanical, and functional features. A sustainable way to create these textile composites is to introduce a coating material that is biologically derived, biodegradable, and can be produced through scalable processes. Here, we fabricated self-repairing textile composites by integrating the biofilms of Escherichia coli (E. coli) bacteria into conventional knitted textiles. The major structural protein component in E. coli biofilm is a matrix of curli fibers, which has demonstrated extraordinary abilities to self-assemble into mechanically strong macroscopic structures and self-heal upon contact with water. We demonstrated the integration of biofilm through three simple, fast, and scalable methods: adsorption, doctor blading, and vacuum filtration. We confirmed that the composites were breathable and mechanically strong after the integration, with improved Young’s moduli or elongation at break depending on the fabrication method used. Through patching and welding, we showed that after rehydration, the composites made with all three methods effectively healed centimeter-scale defects. Upon observing that the biofilm strongly attached to the textiles by covering the extruding textile fibers from the self-repair failures, we proposed that the strength of the self-repairs relied on both the biofilm’s cohesion and the biofilm-textile adhesion. Considering that curli fibers are genetically-tunable, the fabrication of self-repairing curli-expressing biofilm-textile composites opens new venues for industrially manufacturing affordable, durable, and sustainable functional textiles.

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The Design and Evaluation of a Burn Wound Covering

Cited by 17 publications

References 11 publications

Breathable and Stretchable Temperature Sensors Inspired by Skin

Breathable and Stretchable Temperature Sensors Inspired by Skin

Laser-Processed Nature-Inspired Deformable Structures for Breathable and Reusable Electrophysiological Sensors toward Controllable Home Electronic Appliances and Psychophysiological Stress Monitoring

Endowing textiles with self-repairing ability through the fabrication of composites with a bacterial biofilm

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