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Zovala zamphamvu zonyamula zimatha kuthandizira kuyang'anira thanzi la anthu ndikuzindikira kulumikizana kwa makompyuta a anthu.Khama likupitilira kupanga masensa omwe ali ndi zida zapadziko lonse lapansi komanso kukhudzidwa kwambiri ndi kupsinjika kwamakina.
Phunziro: Kuluka modalira nsalu za piezoelectric pressure transducer kutengera ma electrospun polyvinylidene fluoride nanofiber okhala ndi nozzles 50.Ngongole ya Zithunzi: African Studio/Shutterstock.com
Nkhani yofalitsidwa mu nyuzipepala ya npj Flexible Electronics inanena za kupanga ma transducer a piezoelectric pressure transducer pansalu pogwiritsa ntchito ulusi wa polyethylene terephthalate (PET) warp ndi polyvinylidene fluoride (PVDF) weft warns.Kuchita kwa sensa yopangidwa ndi kukakamiza kokhudzana ndi kuyeza kwamphamvu kutengera mawonekedwe a nsalu kumawonetsedwa pansalu ya pafupifupi 2 metres.
Zotsatira zikuwonetsa kuti kukhudzika kwa sensor yokakamiza yokhathamiritsa pogwiritsa ntchito 2/2 canard design ndi 245% kuposa momwe 1/1 canard design.Kuonjezera apo, zolowetsa zosiyanasiyana zinagwiritsidwa ntchito poyesa momwe nsalu zokongoletsedwera zimagwirira ntchito, kuphatikizapo kupindika, kufinya, kukwinya, kupindika, ndi mayendedwe osiyanasiyana aumunthu.Mu ntchitoyi, sensor yotengera minofu yokhala ndi ma pixel amtundu wa sensor imawonetsa mawonekedwe okhazikika komanso kukhudzika kwakukulu.
Mpunga.1. Kukonzekera kwa PVDF ulusi ndi nsalu multifunctional.Chithunzi cha njira ya electrospinning ya 50-nozzle yomwe imagwiritsidwa ntchito popanga mateti ogwirizana a PVDF nanofibers, pomwe ndodo zamkuwa zimayikidwa mofananira pa lamba wotumizira, ndipo masitepewo ndikukonzekera zida zitatu zoluka kuchokera kumitundu inayi ya monofilament.b Chithunzi cha SEM ndi kugawa kwake kwa ma fiber ogwirizana a PVDF.c Chithunzi cha SEM cha ulusi wa nsonga zinayi.d Kulimba kwamphamvu ndi kupsinjika pakusweka kwa ulusi wa ply zinayi ngati ntchito yopindika.e X-ray diffraction chitsanzo cha ulusi wa ply zinayi zosonyeza kukhalapo kwa magawo a alpha ndi beta.© Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, H. R et al.(2022)
Kukula kofulumira kwa maloboti anzeru ndi zida zamagetsi zomwe zimavalira kwapangitsa kuti pakhale zida zambiri zatsopano zochokera kumagetsi osinthasintha, ndipo ntchito zawo pamagetsi, mafakitale, ndi zamankhwala zikukula mwachangu.
Piezoelectricity ndi mtengo wamagetsi wopangidwa ndi zinthu zomwe zimakhala ndi zovuta zamakina.Piezoelectricity muzinthu za asymmetric imalola mgwirizano wosinthika pakati pa kupsinjika kwamakina ndi magetsi.Choncho, pamene chidutswa cha zinthu za piezoelectric chikuwonongeka mwakuthupi, magetsi amapangidwa, ndipo mosiyana.
Zida za piezoelectric zimatha kugwiritsa ntchito gwero laulere lamakina kuti lipereke njira ina yamagetsi pazinthu zamagetsi zomwe zimadya mphamvu zochepa.Mtundu wa zinthu ndi kapangidwe ka chipangizocho ndi magawo ofunikira popanga zida zogwira potengera kulumikizana kwa electromechanical.Kuphatikiza pa zida zamagetsi zamagetsi, zida zosinthika zamakanika zidawunikidwanso pazida zovala.
Ma polima opangidwa kukhala ma nanofibers pogwiritsa ntchito njira za electrospinning amagwiritsidwa ntchito kwambiri ngati zida zosungira mphamvu za piezoelectric.Piezoelectric polima nanofibers amathandizira kupanga mapangidwe opangidwa ndi nsalu kuti agwiritse ntchito kuvala popereka m'badwo wama electromechanical potengera kusinthasintha kwamakina m'malo osiyanasiyana.
Pachifukwa ichi, ma polima a piezoelectric amagwiritsidwa ntchito kwambiri, kuphatikiza PVDF ndi zotumphukira zake, zomwe zimakhala ndi piezoelectricity yamphamvu.Ulusi wa PVDF uwu umakokedwa ndikukulungidwa kukhala nsalu zopangira ma piezoelectric kuphatikiza masensa ndi ma jenereta.
Chithunzi 2. Minofu ya m'dera lalikulu ndi maonekedwe awo.Chithunzi cha nthiti zazikulu za 2/2 mpaka 195 cm x 50 cm.b SEM chithunzi cha 2/2 weft wopangidwa ndi PVDF weft umodzi wolumikizidwa ndi ma PET awiri.c Modulus ndi kupsyinjika panthawi yopuma mu nsalu zosiyanasiyana ndi 1/1, 2/2 ndi 3/3 m'mphepete.d ndiye ngodya yolendewera yoyezera nsalu.© Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, H. R et al.(2022)
Pantchitoyi, ma jenereta a nsalu opangidwa ndi PVDF nanofiber filaments amapangidwa pogwiritsa ntchito njira yotsatizana ya 50-jet electrospinning, pomwe kugwiritsa ntchito ma nozzles a 50 kumathandizira kupanga mateti a nanofiber pogwiritsa ntchito lamba wozungulira wonyamula lamba.Mitundu yosiyanasiyana yoluka imapangidwa pogwiritsa ntchito ulusi wa PET, kuphatikiza 1/1 (chigwa), 2/2 ndi nthiti 3/3.
Ntchito yam'mbuyomu idanenanso za kugwiritsidwa ntchito kwa mkuwa polumikizana ndi ulusi mu mawonekedwe a mawaya amkuwa omwe amalumikizana pamangongo otolera ulusi.Komabe, ntchito yamakono imakhala ndi ndodo zamkuwa zofanana zomwe zimatalikirana masentimita 1.5 pa lamba wotumizira kuti zithandizire kugwirizanitsa ma spinnerets potengera kuyanjana kwa electrostatic pakati pa ulusi woyipitsidwa ndi ma charger pamwamba pa ulusi wolumikizidwa ku ulusi wamkuwa.
Mosiyana ndi ma sensor a capacitive kapena piezoresistive omwe adafotokozedwa kale, sensa yamphamvu ya minofu yomwe ikufotokozedwa mu pepalali imayankha kuzinthu zambiri zolowera kuchokera ku 0.02 mpaka 694 Newtons.Kuphatikiza apo, sensa yomwe ikufunsidwayo idasunga 81.3% yazomwe zidayambira pambuyo pa kutsuka kokhazikika kasanu, zomwe zikuwonetsa kulimba kwa sensor yokakamiza.
Kuphatikiza apo, ma sensitivity values ​​powunika ma voltage ndi zotsatira zaposachedwa za 1/1, 2/2, ndi 3/3 nthiti zoluka zimawonetsa kukhudzika kwamphamvu kwa 83 ndi 36 mV/N mpaka 2/2 ndi 3/3 kukakamiza kwa nthiti.Masensa a 3 weft adawonetsa 245% ndi 50% kukhudzika kwapamwamba kwa masensa awa, motsatana, poyerekeza ndi 24 mV/N weft pressure sensor 1/1.
Mpunga.3. Kugwiritsa ntchito kowonjezera kwa sensa yodzaza ndi nsalu.Chitsanzo cha insole pressure sensor yopangidwa ndi 2/2 weft ribbed nsalu yoyikidwa pansi pa maelekitirodi awiri ozungulira kuti izindikire kutsogolo (kumunsi kwa zala) ndikuyenda chidendene.b Kuyimira kwadongosolo kwa gawo lililonse la masitepe omwe akuyenda: kutera chidendene, kuyika pansi, kukhudza chala ndi kukweza mwendo.c Magetsi otulutsa magetsi poyankha gawo lililonse la mayendedwe kuti afufuze kuyenda ndi d Zizindikiro zamagetsi zokulitsa zomwe zimagwirizanitsidwa ndi gawo lililonse lakuyenda.e Schematic of the full tissue pressure sensor sensor with arratant to 12 rectangular pixel cells with conductive mizere yojambulidwa kuti izindikire ma sign pa pixel iliyonse.f Mapu a 3D a siginecha yamagetsi yopangidwa mwa kukanikiza chala pa pixel iliyonse.g Chizindikiro chamagetsi chimangozindikirika mu pixel yopanikizidwa ndi chala, ndipo palibe chizindikiro chakumbali chomwe chimapangidwa mu ma pixel ena, kutsimikizira kuti palibe crosstalk.© Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, H. R et al.(2022)
Pomaliza, phunziroli likuwonetsa chomverera champhamvu kwambiri komanso chowoneka bwino cha minofu yomwe imaphatikizapo PVDF nanofiber piezoelectric filaments.Masensa opangidwa ndi mphamvu opangidwa amakhala ndi mphamvu zambiri zolowera kuchokera ku 0.02 mpaka 694 Newtons.
Ma nozzles makumi asanu adagwiritsidwa ntchito pamakina amodzi ozungulira amagetsi, ndipo mphasa yosalekeza ya nanofibers idapangidwa pogwiritsa ntchito cholumikizira chamagulu chotengera ndodo zamkuwa.Pansi pa kukanikizana kwapakatikati, nsalu yopangidwa ndi 2/2 weft hem inawonetsa kukhudzika kwa 83 mV/N, komwe kuli pafupifupi 245% kuposa nsalu ya 1/1 weft hem.
Masensa omwe akufunidwa amtundu uliwonse amawunika ma siginecha amagetsi powatsogolera kumayendedwe amthupi, kuphatikiza kupindika, kupindika, kufinya, kuthamanga ndi kuyenda.Kuphatikiza apo, ma gauji amphamvu a nsaluwa amafanana ndi nsalu wamba potengera kulimba, kusunga pafupifupi 81.3% ya zokolola zawo zoyambirira ngakhale zitatsuka 5.Kuonjezera apo, sensa yopangidwa ndi minofu imakhala yogwira ntchito m'dongosolo lachipatala popanga zizindikiro zamagetsi zochokera kumagulu osalekeza akuyenda kwa munthu.
Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, HR, et al.(2022).Fabric piezoelectric pressure sensor sensor yochokera ku electrospun polyvinylidene fluoride nanofibers yokhala ndi nozzles 50, kutengera mawonekedwe oluka.Flexible electronics npj.https://www.nature.com/articles/s41528-022-00203-6.
Chodzikanira: Malingaliro omwe afotokozedwa pano ndi a mlembi momwe alili ndipo sakuwonetsa malingaliro a AZoM.com Limited T/A AZoNetwork, eni ake ndi wogwiritsa ntchito tsamba lino.Chodzikanirachi ndi gawo limodzi mwamagwiritsidwe ntchito patsamba lino.
Bhavna Kaveti ndi wolemba zasayansi wochokera ku Hyderabad, India.Ali ndi MSc ndi MD kuchokera ku Vellore Institute of Technology, India.mu organic ndi mankhwala chemistry kuchokera ku yunivesite ya Guanajuato, Mexico.Ntchito yake yofufuza ikugwirizana ndi kakulidwe ndi kaphatikizidwe ka mamolekyu a bioactive kutengera ma heterocycles, ndipo ali ndi chidziwitso pakuphatikizika kwamasitepe ambiri komanso magawo ambiri.Pa kafukufuku wake wa udokotala, adagwira ntchito yopanga ma molekyulu osiyanasiyana a heterocycle omangidwa komanso osakanizidwa a peptidomimetic omwe akuyembekezeka kukhala ndi mwayi wopititsa patsogolo ntchito zachilengedwe.Polemba zolemba ndi zolemba zofufuzira, adasanthula chidwi chake cholemba zasayansi komanso kulumikizana.
Cavity, Buffner.(Ogasiti 11, 2022).Sensor yamphamvu yansalu yokwanira yopangidwira kuyang'anira thanzi.Azonano.Inapezedwanso pa Okutobala 21, 2022 kuchokera ku https://www.azonano.com/news.aspx?newsID=39544.
Cavity, Buffner."Sensa yamphamvu yamtundu uliwonse yopangidwira kuyang'anira thanzi".Azonano.October 21, 2022.October 21, 2022.
Cavity, Buffner."Sensa yamphamvu yamtundu uliwonse yopangidwira kuyang'anira thanzi".Azonano.https://www.azonano.com/news.aspx?newsID=39544.(Kuyambira pa Okutobala 21, 2022).
Cavity, Buffner.2022. Sensa yamphamvu ya nsalu zonse yopangidwira kuyang'anira thanzi labwino.AZoNano, idapezeka pa 21 October 2022, https://www.azonano.com/news.aspx?newsID=39544.
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Inoveno PE-550 ndiye makina opangira ma electrospinning / kupopera bwino kwambiri popanga nanofiber mosalekeza.
Filmetrics R54 Chida chapamwamba cha mapu okaniza mapepala a semiconductor ndi ma wafer ophatikizika.