Sisebenzisa iikuki ukuphucula amava akho.Ngokuqhubeka nokukhangela le ndawo, uyavumelana nokusebenzisa kwethu iikuki.Iinkcukacha ezongezelelweyo.
Izinzwa zoxinzelelo ezinxitywayo zinokunceda ukubeka iliso kwimpilo yabantu kwaye ziqonde intsebenziswano yabantu nekhompyuter.Iinzame ziyaqhubeka ukudala iinzwa zoxinzelelo kunye noyilo lwesixhobo sendalo yonke kunye novakalelo oluphezulu kuxinzelelo lomatshini.
Uphononongo: Ipateni yokuluka exhomekeke kwilaphu lepiezoelectric yoxinzelelo lwetransducer esekwe kwi-electrospun polyvinylidene fluoride nanofibers ezinemilomo engama-50.Ikhredithi yoMfanekiso: African Studio/Shutterstock.com
Inqaku elipapashwe kwijenali i-npj Flexible Electronics inika ingxelo malunga nokwenziwa kwee-piezoelectric pressure transducers kumalaphu asebenzisa imisonto ye-warp ye-polyethylene terephthalate (PET) kunye ne-polyvinylidene fluoride (PVDF) .Ukusebenza kwenzwa yoxinzelelo oluphuhlisiweyo ngokumalunga nomlinganiselo woxinzelelo olusekelwe kwipatheni ye-weave iboniswa kwisikali selaphu malunga neemitha ezi-2.
Iziphumo zibonisa ukuba uvakalelo lwe-sensor yoxinzelelo oluphuculweyo usebenzisa i-2/2 ye-canard design yi-245% ephezulu kuneye-1/1 yoyilo lwe-canard.Ukongeza, amacebo ahlukeneyo asetyenziselwe ukuvavanya ukusebenza kwamalaphu aphuculweyo, kubandakanywa ukuguquguquka, ukukhama, ukushwabana, ukujija, kunye neentshukumo ezahlukeneyo zabantu.Kulo msebenzi, inzwa yoxinzelelo olusekwe kwi-tissue ene-sensor pixel array ibonisa iimpawu zokuqonda ezizinzileyo kunye novakalelo oluphezulu.
Irayisi.1. Ukulungiswa kweentambo zePVDF kunye neendwangu ezisebenzayo.Umzobo wenkqubo ye-electrospinning ye-50-nozzle esetyenziselwa ukuvelisa i-mats ehambelanayo ye-nanofibers ye-PVDF, apho iintonga zobhedu zibekwe ngokuhambelana kwibhanti yokuhambisa, kwaye amanyathelo afanele alungiselele izakhiwo ezintathu ezilukiweyo ezivela kwi-four-layer monofilament filaments.b Umfanekiso we-SEM kunye nokuhanjiswa kwedayamitha yeefiber zePVDF ezilungelelanisiweyo.c umfanekiso we-SEM womsonto oneentyantyambo ezine.d Amandla okuqina kunye noxinzelelo ekuqhawukeni komsonto omane njengomsebenzi wokujija.e Ipateni ye-X-reyi yokwahlukana komsonto oneentambo ezine ebonisa ubukho bezigaba ze-alpha kunye ne-beta.© Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, H. R et al.(2022)
Uphuhliso olukhawulezayo lweerobhothi ezikrelekrele kunye nezixhobo zombane ezinxitywayo ziye zavelisa izixhobo ezininzi ezitsha ezisekwe kwizivamvo zoxinzelelo eziguquguqukayo, kwaye usetyenziso lwazo kwi-elektroniki, ishishini kunye namayeza zikhula ngokukhawuleza.
I-Piezoelectricity yintlawulo yombane eveliswa kwizinto eziphantsi koxinzelelo lomatshini.I-Piezoelectricity kwizinto ze-asymmetric ivumela umgca wobudlelwane obubuyiselwayo phakathi koxinzelelo lomatshini kunye nentlawulo yombane.Ngoko ke, xa isiqwenga sezinto ze-piezoelectric sikhubazekile ngokomzimba, intlawulo yombane iyadalwa, kwaye ngokufanayo.
Izixhobo zePiezoelectric zinokusebenzisa umthombo womatshini wasimahla ukunika omnye umthombo wamandla kumalungu e-elektroniki asebenzisa amandla amancinci.Uhlobo lwezinto eziphathekayo kunye nesakhiwo sesixhobo ziiparameters eziphambili zokuveliswa kwezixhobo zokuchukumisa ezisekelwe kwi-electromechanical coupling.Ukongeza kwizixhobo zombane eziphezulu zombane, izixhobo eziphilayo eziguquguqukayo zikhe zajongwa kwizixhobo ezinokunxitywa.
Iipolymers ezicutshungulwa zibe zii-nanofibers ngeendlela ze-electrospinning zisetyenziswa ngokubanzi njengezixhobo zokugcina amandla epiezoelectric.I-piezoelectric polymer nanofibers iququzelela ukuyilwa koyilo olusekwe kwilaphu lolwakhiwo lwezixhobo ezinxitywayo ngokubonelela ngesizukulwana se-electromechanical esekwe kumatshini wokunwebeka kwiindawo ezahlukeneyo.
Ngenxa yale njongo, iipolymers ze-piezoelectric zisetyenziswa ngokubanzi, kubandakanywa i-PVDF kunye ne-derivatives yayo, ene-piezoelectricity enamandla.Ezi fayibha ze-PVDF zizotywa kwaye zisontelwe kwiilaphu zokusetyenziswa kwepiezoelectric kubandakanywa izinzwa kunye neejenereyitha.
Umzobo 2. Izicubu zendawo enkulu kunye neempawu zazo zomzimba.Ifoto enkulu ye-2/2 ye-weft rib pattern ukuya kwi-195 cm x 50 cm.b Umfanekiso we-SEM wepatheni ye-weft ye-2/2 ebandakanya i-PVDF enye yeft edibeneyo kunye neziseko ezimbini ze-PET.c Imodyuli kunye noxinzelelo ngexesha lokuqhawuka kwamalaphu ahlukeneyo ane-1/1, 2/2 kunye ne-3/3 ye-weft imiphetho.d yi-engile ejingayo elinganiswa nelaphu.© Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, H. R et al.(2022)
Kulo msebenzi wangoku, i-generator generator esekelwe kwi-PVDF ye-nanofiber filaments yakhiwe ngokulandelelana kwenkqubo ye-electrospinning ye-50-jet, apho ukusetyenziswa kwee-nozzles ze-50 kunceda ukuveliswa kwee-nanofiber mats usebenzisa i-belt conveyor belt ejikelezayo.Izakhiwo ezahlukeneyo zokuluka zenziwe zisebenzisa i-PET yarn, kubandakanya i-1/1 (ithafa), i-2/2 kunye ne-3/3 ye-weft ribs.
Umsebenzi wangaphambili uxele ukusetyenziswa kobhedu ukulungelelaniswa kwefayibha ngendlela yeengcingo zobhedu ezilungelelanisiweyo kwiidramu zokuqokelela ifayibha.Nangona kunjalo, umsebenzi wangoku uquka iintonga zobhedu ezihambelanayo eziqelelene nge-1.5 cm kwibhanti lokuhambisa ukunceda ukulungelelanisa i-spinnerets ngokusekelwe kwintsebenziswano ye-electrostatic phakathi kweefayili ezihlawulwayo ezingenayo kunye neentlawulo kumphezulu wemicu edityaniswe kwifayibha yobhedu.
Ngokungafaniyo ne-capacitive echazwe ngaphambili okanye i-piezoresistive sensors, i-sensor ye-tissue yoxinzelelo lwe-tissue ecetywayo kweli phepha iphendula kuluhlu olubanzi lwamandla angenayo ukusuka kwi-0.02 ukuya kwi-694 Newtons.Ukongeza, i-sensor yoxinzelelo lwelaphu ecetywayo igcine i-81.3% yegalelo layo lokuqala emva kokuhlamba okuqhelekileyo okuhlanu, ebonisa ukuqina kwenzwa yoxinzelelo.
Ukongeza, amaxabiso obuntununtunu ovavanya amandla ombane kunye neziphumo zangoku ze-1/1, 2/2, kunye ne-3/3 ye-rib knitting ibonise ubuntununtunu bombane obuphezulu be-83 kunye ne-36 mV/N ukuya kwi-2/2 kunye ne-3/3 yoxinzelelo lwembambo.I-3 ye-weft sensors ibonise i-245% kunye ne-50% uvakalelo oluphezulu lwezinzwa zoxinzelelo, ngokulandelanayo, xa kuthelekiswa ne-24 mV / N inzwa yoxinzelelo lwe-weft 1/1.
Irayisi.3. Ukusetyenziswa okwandisiweyo kwenzwa yoxinzelelo lwelaphu elipheleleyo.Umzekelo we-sensole yoxinzelelo lwe-insole eyenziwe nge-2/2 ye-weft ribbed fabric efakwe phantsi kwee-electrodes ezimbini ezijikelezayo ukuze ibone i-forefoot (ngaphantsi kweenzwane) kunye nokunyakaza kwesithende.b Ukubonakaliswa kweskimu kwinqanaba ngalinye lamanyathelo omntu ngamnye kwinkqubo yokuhamba: ukuhla isithende, ukuhla, ukudibanisa inzwane kunye nokuphakanyiswa komlenze.c Imiqondiso ye-Voltage output ekuphenduleni inxalenye nganye yenyathelo lokuhamba kuhlalutyo lwe-gait kunye d Imiqondiso yombane eyandisiweyo ehambelana nesigaba ngasinye sokuhamba.e Schematic yesivamvo soxinzelelo lwethishu egcweleyo enoluhlu oluya kuthi ga kwi-12 yeeseli zepixel ezixande ezinemigca eqhubayo enepateni yokubona iisignali zomntu kwipixel nganye.f Imephu ye-3D yomqondiso wombane owenziwe ngokucofa umnwe kwipixel nganye.g Isignali yombane ibonwa kuphela kwipixel ecinezelwe ngomnwe, kwaye akukho signali yecala yenziweyo kwezinye iipixels, eqinisekisa ukuba akukho crosstalk.© Kim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, H. R et al.(2022)
Ukuqukumbela, olu pho nonongo lubonisa inzwa yoxinzelelo oluphezulu kunye nokunxibayo olubandakanya i-PVDF nanofiber piezoelectric filaments.Iinzwa zoxinzelelo ezenziweyo zinoluhlu olubanzi lwamandla angenayo ukusuka kwi-0.02 ukuya kwi-694 Newtons.
Kusetyenziswe imilomo engama-50 kumatshini omnye wokusonta wombane, kunye nemethi eqhubekayo yeenanofibers yaveliswa kusetyenziswa isihambisi sebhetshi esekwe kwiintonga zobhedu.Ngaphantsi koxinzelelo olungapheliyo, i-2/2 ye-weft ye-hem yelaphu eyenziweyo ibonise ubuntununtunu be-83 mV/N, malunga ne-245% ephezulu kune-1/1 ye-weft ye-hem yelaphu.
Izinzwa zoxinzelelo ezilukiweyo zonke ezicetywayo zijonga imiqondiso yombane ngokuyithobela kwiintshukumo zomzimba, kubandakanya ukujija, ukugoba, ukucudisa, ukubaleka kunye nokuhamba.Ukongeza, ezi geyiji zoxinzelelo lwelaphu zithelekiseka namalaphu aqhelekileyo ngokwemigaqo yokuqina, zigcina malunga ne-81.3% yesivuno sazo sokuqala nasemva kokuhlamba okuqhelekileyo oku-5.Ukongezelela, i-sensor ye-tissue eyenziwe iyasebenza kwinkqubo yokunakekelwa kwezempilo ngokuvelisa izibonakaliso zombane ngokusekelwe kumacandelo aqhubekayo okuhamba komntu.
UKim, DB, Han, J., Sung, SM, Kim, MS, Choi, BK, Park, SJ, Hong, HR, et al.(2022).Isivamvo soxinzelelo lwelaphu piezoelectric esekwe kwi-electrospun polyvinylidene fluoride nanofibers ezinemilomo engama-50, ngokuxhomekeke kwipateni yokuluka.Izixhobo ze-elektroniki eziguquguqukayo npj.https://www.nature.com/articles/s41528-022-00203-6.
Ukuzihlangula: Iimbono ezichazwe apha zezombhali ngokwesikhundla sakhe kwaye azibonisi izimvo ze-AZoM.com Limited T/A AZoNetwork, umnini kunye nomsebenzi wale webhusayithi.Esi silandulo siyinxalenye yemigaqo yokusetyenziswa kwale webhusayithi.
UBhavna Kaveti ngumbhali wenzululwazi waseHyderabad, eIndiya.Uphethe i-MSc kunye ne-MD evela kwiVellore Institute of Technology, eIndiya.kwichemistry yezinto eziphilayo kunye neyonyango evela kwiYunivesithi yaseGuanajuato, eMexico.Umsebenzi wakhe wophando unxulumene nophuhliso kunye nokuhlanganiswa kwee-molecule ze-bioactive ezisekelwe kwi-heterocycles, kwaye unamava kwi-multi-step and multi-component synthesis.Ngexesha lophando lwakhe lobugqirha, wasebenza ekudityanisweni kweemolekyuli ezahlukeneyo ze-heterocycle-based bound and fused peptidomimetic ekulindeleke ukuba zibe namandla okuqhubela phambili umsebenzi webhayoloji.Ngelixa ebhala ii-dissertations kunye namaphepha ophando, waphonononga ukuthanda kwakhe ukubhala kunye nokunxibelelana kwezesayensi.
Cavity, Buffner.(Ngomhla we-11 ku-Agasti 2022).Isivamvo soxinzelelo lwelaphu elipheleleyo elenzelwe ukunxiba esweni impilo.Azonano.Ibuyiselwe nge-21 ka-Okthobha, 2022 ukusuka https://www.azonano.com/news.aspx?newsID=39544.
Cavity, Buffner."Inzwa yoxinzelelo lwezicubu zonke eyenzelwe ukujonga impilo enxibekayo".Azonano.Ngo-Oktobha 21, 2022.Ngo-Oktobha 21, 2022.
Cavity, Buffner."Inzwa yoxinzelelo lwezicubu zonke eyenzelwe ukujonga impilo enxibekayo".Azonano.https://www.azonano.com/news.aspx?newsID=39544.(Ukusukela nge-21 kaOkthobha 2022).
Cavity, Buffner.2022. Inzwa yoxinzelelo lwelaphu yonke eyenzelwe ukujongwa kwezempilo okunxibayo.I-AZoNano, ifunyenwe nge-21 ka-Okthobha 2022, https://www.azonano.com/news.aspx?newsID=39544.
Kolu dliwano-ndlebe, i-AZoNano ithetha noNjingalwazi u-André Nel malunga nophononongo olutsha abandakanyekayo kulo oluchaza ukuphuhliswa kwe-nanocarrier “yeglasi yeglasi” enokunceda amachiza angene kwiiseli zomhlaza wepancreatic.
Kolu dliwano ndlebe, u-AZoNano uthetha no-UC Berkeley ka-King Kong Lee malunga ne-Nobel Prize-winning technology, i-tweezers optical.
Kulo dliwano-ndlebe, sithetha ne-SkyWater Technology malunga nemeko yoshishino lwe-semiconductor, indlela i-nanotechnology inceda ngayo ukubumba ishishini, kunye nentsebenziswano yabo entsha.
I-Inoveno PE-550 yeyona nto ithengisa kakhulu i-electrospinning / umatshini wokutshiza ngokuqhubekayo kwimveliso ye-nanofiber.
I-Filmetrics R54 Isixhobo esiphuhlileyo sokumelana nephepha lemaphu ye-semiconductor kunye neewafer ezihlanganisiweyo.