Novel smart textile with ultraviolet shielding and thermo-regulation fabricated via electrospinning

2021 ◽  
Vol 42 ◽  
pp. 103094
Author(s):  
Jinyu Wang ◽  
Jin Xu ◽  
Yan He
2021 ◽  
Vol 3 (2) ◽  
pp. 896-907
Author(s):  
Qing Li ◽  
Sheng Liu ◽  
Yujuan Guo ◽  
Yulin Liang ◽  
Hualing Peng ◽  
...  

2020 ◽  
Vol 6 (3) ◽  
pp. 368-371
Author(s):  
Julia Demmer ◽  
A. Kitzig ◽  
N. Schlage ◽  
G. Stockmanns ◽  
E. Naroska

AbstractPatients often report an effect after surgery of the anterior cruciate ligament which is called "giving way". This manifest itself by a drop of the knee or a felt instability. This phenomenon is difficult to measure and validate because it usually does not occur regularly and is not reproducible under laboratory conditions. The Knetex project takes up this point by trying to actively support the rehabilitation process with a bandage that can be worn in everyday life and is constructed as a smart textile using sensors and actuators. For this purpose, on the one hand it is attempted to actively record the phenomenon of the "giving way" by measuring knee angles etc. and by active user feedback. At the same time, the patient is specifically advised by means of actuators to correct incorrect posture or movement in order to make the rehabilitation process more effective and prevent further damage. Two 9-axis IMUs (inertial measurement units) form the basis of the system. These are used together with a textile strain sensor to calculate the knee angles. This paper gives an overview of the planned system, the initial experiments to measure the knee angles and the first results of the actuator study.


2021 ◽  
Vol 1900 (1) ◽  
pp. 012019
Author(s):  
Muhammad Muizz Mohd Nawawi ◽  
Khairul Azami Sidek ◽  
Alaa K Y Dafhalla ◽  
Amelia Wong Azman

2020 ◽  
Vol 38 (3) ◽  
pp. 182-195
Author(s):  
Tarek M. Abou Elmaaty ◽  
Shereen A. Abdeldayem ◽  
Nashwa Elshafai

Thermochromic (TC) pigments offer significant potential for functional and aesthetic design of smart textile materials. In this study, TC (blue and red) pigments were applied to cotton fabrics and printed on especially designed childrenswear by flat screen printing technique. The antibacterial and ultraviolet protection functionalities have been implemented into the fabrics under study by using selenium nanoparticles. The factors affecting the printing process were studied and the optimum formula was screen printed to produce the pattern’s designs of childrenswear. After conducting several tests, the results showed a significant color-changing effect depending on temperature, the color fastness properties to light, wash, and rubbing were excellent. Antibacterial activity of printed fabrics was very good against Bacillus cereus and Escherichia coli bacteria and the anti-ultraviolet protection was found to be very good. The printed fabrics can be as protective childrenswear as shown in this work.


2021 ◽  
pp. 1-13
Author(s):  
Adelina Vevere ◽  
Alexander Oks ◽  
Alexei Katashev ◽  
Galina Terlecka ◽  
Laima Saiva ◽  
...  

BACKGROUND: The manner in which shooters pull the trigger may significantly affect the shooter’s results. Shooting coaches are often not able to detect incorrect pull because of gun movement during the shot and recoil. OBJECTIVE: Development of the smart-textile based trigger pull monitoring system and demonstration of its ability to distinguish correct and wrong triggering techniques. METHODS: Two separated knitted resistive pressure sensors were integrated over III and II phalanges in the index finger fingerstall; single sensor was integrated over both III and II phalanges of the middle finger fingerstall. Resistance of the sensors was measured in a course of shots, performed by expert shooter, which simulated typical novice’s trigger pull errors. RESULTS: Sensors’ resistance recordings were made for following erroneous trigger pull motions: pulling of the trigger with index finger’s II phalanx instead of III; fast and jerky trigger pull (trigger tear-off); too fast release of the trigger after shot; and excessive grip force, applied by middle finger. For each type of erroneous movement, recordings waveforms included distinguishable features that characterised a particular type of error. CONCLUSIONS: The developed trigger pull monitoring system provides signals that could be used for recognition of the incorrect trigger pull motions during gun shots.


2017 ◽  
Vol 11 (4) ◽  
pp. 668-677 ◽  
Author(s):  
Bijan Najafi ◽  
Hooman Mohseni ◽  
Gurtej S. Grewal ◽  
Talal K. Talal ◽  
Robert A. Menzies ◽  
...  

Objective: This study aimed to validate a smart-textile based on fiber-optics for simultaneous measurement of plantar temperature, pressure, and joint angles in patients with diabetic peripheral neuropathy (DPN). Methods: After in-vitro validation in the laboratory, 33 eligible subjects with DPN were recruited (age: 58 ± 8 years, BMI: 31.5 ± 8 kg/m2) for assessing plantar pressure and temperature during habitual gait-speed in a clinical-setting. All participants were asked to walk at their habitual speed while wearing a pair of sensorized socks made from highly flexible fiber optics (SmartSox). An algorithm was designed to estimate temperature, pressure, and toe range of motion from optical wavelength generated from SmartSox. To validate the device, results from thermal stress response (TSR) using thermography and peak pressure measured by computerized pressure insoles (F-Scan) were used as gold standards. Results: In laboratory and under controlled conditions, the agreements for parameters of interest were excellent ( r > .98, P = .000), and no noticeable cross-talks between measurements of temperature, angle, and pressure were observed. During clinical data acquisition, a significant correlation was found for pressure profile under different anatomical regions of interest between SmartSox and F-Scan ( r = .67, P < .050) as well as between thermography and SmartSox ( r = .55, P < .050). Conclusion: This study demonstrates the validity of an innovative smart textile for assessing simultaneously the key parameters associated with risk of foot ulcers in patients with DPN. It may empower clinicians to objectively stratify foot risk and provide timely care. Another study is warranted to validate its clinical application in preventing limb threating problems in patients with DPN.


2017 ◽  
Vol 5 (2) ◽  
pp. 175-207 ◽  
Author(s):  
Riikka Claire Townsend ◽  
Antti J. Karttunen ◽  
Maarit Karppinen ◽  
Jussi Mikkonen

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