According to foreign media reports, Rice University researchers recently demonstrated a clothing with carbon nanotubes that can continuously monitor the wearer's heart. There's no need to wear an uncomfortable smartwatch or chest strap to monitor your heart if your comfortable clothing does a better job. That's the idea behind "smart clothing" developed by a Rice University lab that uses its conductive nanowires to weave functionality into regular clothing.
Matteo Pasquali, a chemical and biomolecular engineer at the school's Brown School of Engineering, reports in Nano Letters, a journal of the American Chemical Society, that it sewn nanotube fibers into sportswear to monitor heart rate and perform continuous electrocardiographic monitoring of the wearer. .
Tadqiqotchilarning fikricha, tolalar metall simlar kabi elektr o‘tkazuvchan, lekin yuvilishi mumkin, qulay va tana harakatda bo‘lganda sinish ehtimoli ancha past. Umuman olganda, ularning yaxshilangan kiyimlari tajribalarda dala oʻlchovlarini oʻtkazgan standart koʻkrak qafasi{0}}monitörlariga qaraganda maʼlumot toʻplashda yaxshiroq edi. Tijoriy tibbiy elektrod monitorlari bilan taqqoslaganda, uglerod nanotubeli kiyimlar EKGda biroz yaxshiroq ishladi.
"The garment had to fit snugly against the chest," said Rice graduate student Lauren Taylor, lead author of the study. "In future research, we will focus on using denser blocks of carbon nanowires so that there is more surface area to contact the skin."
Tadqiqotchilarning ta'kidlashicha, nanotubka tolalari yumshoq va elastik bo'lib, ularni o'z ichiga olgan kiyimlarni mashinada yuvish mumkin. Ushbu tolalar standart ip kabi matoga tikilgan bo'lishi mumkin. Zigzag tikuv naqshlari matolarni buzmasdan cho'zish imkonini beradi.
The fibers not only provide a stable electrical contact with the wearer's skin, Taylor said, but also act as electrodes to connect electronic devices such as Bluetooth transmitters, relay data to smartphones, or connect to Holter monitors that can fit in the user's pocket. device.
Pasquali's lab introduced carbon nanotube fibers in 2013. Since then, fibers containing tens of billions of nanotubes each have been studied to repair bridges in damaged hearts, as electrical interfaces to the brain, for cochlear implants, as flexible antennas, and for automotive and aerospace applications. Their development is also part of the Rice-based Carbon Center, a multi-university research initiative led by Rice and launched in 2019.
Asl nanotube filamentlarining kengligi taxminan 22 mikron bo'lib, tikuv mashinasi uchun juda nozik edi. Teylorning so'zlariga ko'ra, tikuv ipini yaratish uchun arqon ishlab chiqaruvchisi ishlatilgan, asosan har biri etti filamentdan iborat uchta to'plam oddiy ip bilan bir xil o'lchamda to'qilgan.
"We worked with a guy who sold a little machine designed to make ropes for model boats," says Taylor, who initially tried to weave the thread by hand with limited success. "He was able to make us a mid-scale device that could do that."
Zig{0}}zag naqshini sport kiyimi yoki boshqa matoning qanchalik cho‘zilishini hisobga olgan holda sozlash mumkin, dedi u. Teylorning so'zlariga ko'ra, jamoa doktor Mehdi Razaviy va uning Texas yurak institutidagi hamkasblari bilan qanday qilib teriga tegishni maksimal darajada oshirish mumkinligini aniqlash uchun ishlamoqda.
Tadqiqotchilarning ta'kidlashicha, matoga to'qilgan tolalar antennalar yoki LEDlarni joylashtirish uchun ham ishlatilishi mumkin. Elyaf geometriyasi va unga aloqador elektronikadagi ozgina o'zgarishlar kiyimga hayotiy belgilar, harakat yoki nafas olish tezligini kuzatish imkonini beradi.
Other potential uses could include human-machine interfaces in cars or soft robots, or as antennas, health monitors and bulletproof protection for military uniforms, Taylor noted. "We demonstrated with a collaborator a few years ago that carbon nanotube fibers dissipate energy better per unit weight than Kevlar fibers, and that's without some of our later progress in tensile strength," she said. "
"We're seeing this material play a role in more and more applications after 20 years of development in laboratories around the world," Pasquali said. "Carbon nanotubes are a natural building block for wearable devices due to their combination of electrical conductivity, good skin contact, biocompatibility and softness."
Kiyinadigan buyumlar bozori, nisbatan kichik bo'lsa-da, uglevodorodlardan to'g'ridan-to'g'ri bo'linish orqali olinadigan barqaror materiallarning yangi avlodi uchun kirish nuqtasi bo'lishi mumkin, bu jarayon ham toza vodorod ishlab chiqaradi, dedi u. Ushbu materialni ishlab chiqish Karbon markazining diqqat markazidir.
"We are in the same situation as solar cells were decades ago," Pasquali said. "We need application leaders that can power scale-up of production and improve efficiency."
