Isu tinoshandisa makuki kuvandudza ruzivo rwako.Nekuramba uchitsvaga saiti ino, unobvuma kushandisa kwedu makuki.Mamwe Mashoko.
Wearable pressure sensors inogona kubatsira kutarisa hutano hwevanhu uye kuona kusangana kwevanhu nekombuta.Kuedza kuri kuenderera mberi kugadzira ma sensors ane dhizaini yepasirese dhizaini uye yakanyanya kunzwisiswa kune mechaniki kusagadzikana.
Chidzidzo: Weave pateni inotsamira textile piezoelectric pressure transducer yakavakirwa pa electrospun polyvinylidene fluoride nanofibers ine makumi mashanu nozzles.Mufananidzo Chikwereti: African Studio/Shutterstock.com
Chinyorwa chakaburitswa mujenari npj Flexible Electronics chinoshuma nezvekugadzirwa kwepiezoelectric pressure transducer yemachira uchishandisa polyethylene terephthalate (PET) warp warns uye polyvinylidene fluoride (PVDF) weft yarns.Kuita kweiyo yakagadziridzwa kudzvanywa sensor maererano nekuyerwa kwekumanikidza kunoenderana neiyo weave patani inoratidzwa pachiyero chemucheka chinosvika 2 metres.
Mhedzisiro yacho inoratidza kuti sensitivity yekumanikidza sensor yakagadziridzwa uchishandisa iyo 2/2 canard dhizaini ndeye 245% yakakwirira kupfuura iyo ye1/1 canard dhizaini.Pamusoro pezvo, mapeji akasiyana-siyana akashandiswa kuongorora kushanda kwemachira akakwenenzverwa, anosanganisira kupfakanyika, kusvina, kukwinya, kumonyorora, uye kufamba kwakasiyana-siyana kwevanhu.Mune iri basa, tishu-yakavakirwa kumanikidza sensor ine sensor pixel array inoratidza yakagadzikana maitiro ekunzwisisa uye yakanyanya kunzwa.
Mupunga.1. Kugadzirira kwePVDF threads uye machira akawanda.dhiyagiramu ye50-nozzle electrospinning process inoshandiswa kugadzira mats anoenderana ePVDF nanofibers, uko matanda emhangura anoiswa akaenzana pabhandi rekutakura, uye matanho ndeekugadzira matatu akarukwa zvimiro kubva kune mana-layer monofilament filaments.b SEM mufananidzo uye dhayamita kugoverwa kweakaenderana PVDF fibers.c SEM mufananidzo weshinda ina-ply.d Kusimba kwesimba uye kuomarara pakutsemuka kweshinda ina-ply sebasa rekumonyoroka.e X-ray diffraction pattern yechina-ply yarn inoratidza kuvapo kwealpha nebeta phases.© Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, H. R et al.(2022)
Kukurumidza kusimukira kwemarobhoti akangwara uye midziyo yemagetsi inopfekwa yapa kuti midziyo mitsva mitsva yabva pane inochinjika ma sensors, uye mashandisirwo azvo mumagetsi, indasitiri, uye mushonga zviri kukurumidza kusimukira.
Piezoelectricity imari yemagetsi inogadzirwa pane chinhu chinoiswa pasi pekushushikana kwemagetsi.Piezoelectricity mune asymmetric zvinhu inobvumira mutsara unodzoreredzwa hukama pakati pemakanika kushushikana uye kubhadharisa magetsi.Naizvozvo, kana chidimbu chepiezoelectric chinhu chakaremara mumuviri, kuchaja kwemagetsi kunogadzirwa, uye zvakasiyana.
Piezoelectric zvishandiso zvinogona kushandisa yemahara mechaniki sosi kupa imwe simba sosi yemagetsi zvinhu zvinopedza simba shoma.Rudzi rwezvinhu uye chimiro chechishandiso ndiwo akakosha maparamita ekugadzirwa kwemidziyo yekubata yakavakirwa pa electromechanical coupling.Pamusoro peyakakwira voltage inorganic zvinhu, michina inochinjika organic zvinhu zvakaongororwa mumidziyo inopfeka.
Mapolymers akagadziriswa kuita nanofibers ne electrospinning nzira anoshandiswa zvakanyanya se piezoelectric simba rekuchengetedza midziyo.Piezoelectric polymer nanofibers inofambisa kugadzirwa kwejira-yakavakirwa dhizaini zvimiro zvezvipfeko zvinopfekwa nekupa chizvarwa chemagetsi chinoenderana nekusimba kwemechani munzvimbo dzakasiyana siyana.
Nechinangwa ichi, piezoelectric polymers anoshandiswa zvakanyanya, kusanganisira PVDF uye zvinobva mairi, zvine simba piezoelectricity.Aya maPVDF fiber anodhonzwa uye anorukwa kuita machira epiezoelectric application zvinosanganisira masensa nemajenareta.
Mufananidzo 2. Nzvimbo dzakakura matishu uye maitiro avo emuviri.Mufananidzo weiyo yakakura 2/2 weft rib pattern kusvika 195 cm x 50 cm.b SEM mufananidzo we 2/2 weft pateni ine imwe PVDF weft yakapindirana nemabhesi maviri ePET.c Modulus uye kunetsa pakuputika mumachira akasiyana-siyana ane 1/1, 2/2 uye 3/3 weft edges.d ndiyo kona yekurembera inoyerwa jira.© Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, H. R et al.(2022)
Mune basa razvino, majenareta emachira akavakirwa paPVDF nanofiber filaments anogadzirwa achishandisa inoteedzana 50-jet electrospinning process, uko kushandiswa kwema50 nozzles kunobatsira kugadzirwa kwenanofiber mats uchishandisa inotenderera bhandi rekutakura.Zvimiro zvakasiyana-siyana zvinogadzirwa nePET shinda, kusanganisira 1/1 (plain), 2/2 uye 3/3 weft mbabvu.
Basa rakapfuura rakashuma kushandiswa kwemhangura yekumisikidza faibha muchimiro chewaya dzemhangura dzakamisikidzwa pamadhiramu ekuunganidza fiber.Zvisineyi, basa razvino uno rine matanda emhangura anoenderana akaparadzana masendimita 1.5 kubva pabhandi rekutakura kuti ribatsire kurongedza maspinnerets zvichibva pakudyidzana kwe electrostatic pakati pemafiibhi anouya anochajiswa uye machaji ari pamusoro pemafiibhi akabatanidzwa pafiber yemhangura.
Kusiyana nezvakambotsanangurwa capacitive kana piezoresistive sensors, iyo tishu yekumanikidza sensor inotsanangurwa mubepa rino inopindura kune akasiyana siyana ekuisa masimba kubva ku0.02 kusvika 694 Newtons.Uye zvakare, iyo yakatsanangurwa yejira yekumanikidza sensor yakachengeta 81.3% yeyakaiswa yayo yepakutanga mushure meshanu yakajairwa kugezwa, zvichiratidza kusimba kweiyo pressure sensor.
Pamusoro pezvo, sensitivity kukosha kuongorora voltage uye zvazvino zvabuda zve 1/1, 2/2, uye 3/3 mbabvu dzakarukwa zvakaratidza high voltage senitivity ye83 uye 36 mV/N kusvika 2/2 uye 3/3 mbabvu pressure.3 weft sensors yakaratidza 245% uye 50% yepamusoro senitivity kune aya ma sensor sensors, zvichiteerana, zvichienzaniswa ne24 mV / N weft pressure sensor 1/1.
Mupunga.3. Kuwedzerwa kushandiswa kwe-full-cloth pressure pressure sensor.a Muenzaniso we insole pressure sensor yakagadzirwa ne 2/2 weft ribbed jira rakaiswa pasi pema electrode maviri edenderedzwa kuona kumberi (pazasi pezvigunwe) uye kufamba kwechitsitsinho.b Schematic inomiririra yega yega nhanho dzenhanho dzekufamba-famba: kumhara chitsitsinho, kudzika pasi, kubata zvigunwe uye kusimudza gumbo.c Magetsi anobuda masaini mukupindura kune imwe neimwe chikamu chegait nhanho yekuongorora gait uye d Amplified magetsi masaini ane chekuita nechikamu chimwe nechimwe chekufamba.e Schematic ye full tissue pressure sensor ine array anosvika gumi nemaviri rectangular pixel cells ane conductive mitsara yakarongwa kuona masaini ega ega kubva pixel yega yega.f Mepu ye3D yechiratidzo chemagetsi inogadzirwa nekudzvanya chigunwe pane yega pixel.g Chiratidzo chemagetsi chinongoonekwa mupikisi yakadzvanywa nemunwe, uye hapana chiratidzo chedivi chinogadzirwa mune mamwe mapikiseli, zvichisimbisa kuti hapana crosstalk.© Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, H. R et al.(2022)
Mukupedzisa, chidzidzo ichi chinoratidza yakanyanya kunzwa uye inopfekeka tishu yekumanikidza sensor inosanganisira PVDF nanofiber piezoelectric filaments.Manufactured pressure sensors ane huwandu hwakawanda hwemasimba ekuisa kubva pa0.02 kusvika 694 Newtons.
Makumi mashanu nozzles akashandiswa pane imwe prototype yemagetsi kutenderera muchina, uye inoenderera meti ye nanofibers yakagadzirwa uchishandisa batch conveyor yakavakirwa pamatanda emhangura.Pasi pekudzvanyirirwa kwepakati, jira rakagadzirwa 2/2 weft hem rakaratidza kunzwa kwe83 mV/N, iyo inenge 245% yakakwirira kupfuura 1/1 weft hem jira.
Iwo akarukwa ese-akarukwa ekumanikidza masensa anotarisisa masaini emagetsi nekuaisa pasi pekufamba kwemuviri, kusanganisira kumonyoroka, kukotama, kudzvinya, kumhanya uye kufamba.Pamusoro pezvo, aya machira ekumanikidza geji anofananidzwa nemachira akajairwa maererano nekusimba, achichengeta angangoita 81.3% yegoho rawo rekutanga kunyangwe mushure mekugezwa kwe5.Mukuwedzera, iyo inogadzirwa yetishu sensor inoshanda muhutano hwehutano kuburikidza nekugadzira zviratidzo zvemagetsi zvichienderana nezvikamu zvinopfuurira zvekufamba kwemunhu.
Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, HR, et al.(2022).Fabric piezoelectric pressure sensor inobva paelectrospun polyvinylidene fluoride nanofibers ine 50 nozzles, zvichienderana nepeteni yekuruka.Flexible electronics npj.https://www.nature.com/articles/s41528-022-00203-6.
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Bhavna Kaveti munyori wesainzi anobva kuHyderabad, India.Ane MSc uye MD kubva kuVellore Institute of Technology, India.mune organic uye yemishonga chemistry kubva kuYunivhesiti yeGuanajuato, Mexico.Basa rake rekutsvagisa rine chekuita nekusimudzira uye kuumbwa kwemamorekuru ebioactive zvichibva pane heterocycles, uye ane ruzivo mune akawanda-nhanho uye akawanda-chikamu synthesis.Munguva yekutsvagisa kwake kwachiremba, akashanda pakugadzira kwakasiyana heterocycle-based akasungwa uye akasanganiswa peptidomimetic mamorekuru anotarisirwa kuve nehunyanzvi hwekuwedzera kushanda kwebiological chiitiko.Paainyora dissertation uye mapepa ekutsvagisa, akaongorora kuda kwake kunyora kwesainzi nekutaurirana.
Cavity, Buffner.(Nyamavhuvhu 11, 2022).Full fabric pressure sensor yakagadzirirwa kupfekwa yekutarisa hutano.Azonano.Yakadzorerwa Gumiguru 21, 2022 kubva https://www.azonano.com/news.aspx?newsID=39544.
Cavity, Buffner."Yese-tishu yekumanikidza sensor yakagadzirirwa kupfekwa yekutarisa hutano".Azonano.Gumiguru 21, 2022.Gumiguru 21, 2022.
Cavity, Buffner."Yese-tishu yekumanikidza sensor yakagadzirirwa kupfekwa yekutarisa hutano".Azonano.https://www.azonano.com/news.aspx?newsID=39544.(Kubva Gumiguru 21, 2022).
Cavity, Buffner.2022. Yese-machira pressure sensor yakagadzirirwa kupfekwa yekutarisa hutano.AZoNano, yakasvika 21 Gumiguru 2022, https://www.azonano.com/news.aspx?newsID=39544.
Mubvunzurudzo iyi, AZoNano inotaura naProfessor André Nel nezve chidzidzo chitsva chaanoita icho chinotsanangura kugadzirwa kwe "girazi bubble" nanocarrier inogona kubatsira mishonga kupinda pancreatic cancer maseru.
Mubvunzurudzo iyi, AZoNano inotaura naUC Berkeley's King Kong Lee nezve tekinoroji yake yekuhwina Mubairo weNobel, tekinoroji yemaziso.
Mubvunzurudzo iyi, tinotaura neSkyWater Technology nezve mamiriro eiyo semiconductor indasitiri, kuti nanotechnology iri kubatsira sei kuumba indasitiri, uye kudyidzana kwavo kutsva.
Inoveno PE-550 ndiyo yakanyanya kutengesa electrospinning/spraying muchina wekuenderera mberi nanofiber kugadzirwa.
Filmetrics R54 Yepamusoro pepa kuramba mepu chishandiso che semiconductor uye composite wafers.