Nkhani

Opaleshoni Sutures
Opaleshoni Sutures ndi ofunikira kwambiri potseka mabala, okhala ndi mphamvu zochulukirapo kuposa zomatira minofu ndikufulumizitsa machiritso achilengedwe. Pali zida zambiri zopangira opaleshoni zomwe zatengedwa kuti zitheke - monga mapulasitiki owonongeka komanso osasinthika, mapuloteni opangidwa ndi biologically, ndi zitsulo - koma magwiridwe antchito awo adachepetsedwa ndi kuuma kwawo. Zipangizo zamtundu wa suture zimatha kuyambitsa kukhumudwa, kutupa komanso kufooka kwa machiritso, pakati pa zovuta zina zapambuyo pa opaleshoni.
Pofuna kuthana ndi vutoli, ofufuza ochokera ku Montreal apanga njira zatsopano zopangira opaleshoni za gel sheathed (TGS) zolimbikitsidwa ndi tendon yamunthu.
Ma suture am'badwo wotsatirawa amakhala ndi envelopu yoterera, koma yolimba ya gel, yotsanzira kapangidwe kake kofewa. Poyesa ma sutures olimba a gel sheathed (TGS), ofufuzawo adapeza kuti gel osasunthika pang'ono amachepetsa kuwonongeka komwe kumachitika chifukwa cha ma sutures achikhalidwe.
Ma suture ochiritsira ochiritsira akhalapo kwa zaka mazana ambiri ndipo amagwiritsidwa ntchito kugwirizanitsa mabala pamodzi mpaka machiritso atha. Koma si abwino kwambiri kukonzanso minofu. Ulusiwo ukhoza kudula ndi kuwononga minyewa yomwe yayamba kufooka, zomwe zimapangitsa kuti pakhale zovuta komanso zovuta pambuyo pa opaleshoni.
Malingana ndi ochita kafukufuku, gawo lina la vuto la sutures wamba ndi kusagwirizana pakati pa minyewa yathu yofewa ndi kulimba kwa sutures zomwe zimapaka motsutsana ndi minofu. McGill University ndi gulu la INRS Énergie Matériaux Télécommunications Research Center adathana ndi vutoli popanga ukadaulo watsopano womwe umatengera zimango za tendons.
Kulimbikitsidwa ndi Tendons za Anthu
Pofuna kuthana ndi vutoli, gululo linapanga teknoloji yatsopano yomwe imatsanzira makina a tendons. "Mapangidwe athu amapangidwa ndi thupi la munthu, sheath ya endotenon, yomwe ndi yolimba komanso yolimba chifukwa cha mapangidwe ake amitundu iwiri.
Imamanga ulusi wa collagen palimodzi pomwe netiweki yake ya elastin imalimbitsa, "akutero wolemba wamkulu Zhenwei Ma, wophunzira wa PhD moyang'aniridwa ndi Wothandizira Pulofesa Jianyu Li ku McGill University.
Endotenon sheath imapanga malo oterera kuti achepetse kukangana ndi minofu yozungulira komanso imaperekanso zida zokonzetsera minyewa pakuvulala kwa tendon, kuphatikiza ma cell ndi mitsempha yamagazi komanso zoyendera zambiri komanso kukonza minyewa.
Ma sutures opangira ma gel olimba a gel sheathed (TGS) amatha kupangidwa kuti azipereka chithandizo chamunthu payekha malinga ndi zosowa za wodwala, atero ofufuzawo.
Next Generation Suture Materials
Ma sutures aku McGill University ali ndi suture yoluka yodziwika bwino yamalonda mkati mwa envulopu ya gel yotengera sheath iyi. Ma sutures opangira ma gel olimba (TGS) amatha kupangidwa mpaka 15cm kutalika ndipo amatha kuwumitsidwa kuti asungidwe kwa nthawi yayitali.
Pogwiritsa ntchito chikopa cha nkhumba, kenako makoswe, ofufuzawo adawonetsa kuti atha kugwiritsidwa ntchito popangira maopaleshoni anthawi zonse ndi mfundo ndipo amatha kutseka chilonda popanda kuyambitsa matenda.
The tough gel sheathed (TGS) sutures opaleshoni - mu kufanana kwina ndi endotenon sheaths - amathanso kupangidwa kuti azipereka chithandizo chamunthu payekha.
Kuchiza Mabala Mwamakonda Anu
Ofufuzawo adawonetsa mfundoyi pokweza ma sutures ndi antibacterial compound, pH sensing microparticles, mankhwala ndi fluorescent nanoparticles zotsutsana ndi matenda, kuyang'anira bedi labala, kutumiza mankhwala ndi kugwiritsa ntchito bioimaging.
"Tekinoloje iyi imapereka chida chosunthika pakuwongolera mabala. Timakhulupirira kuti angagwiritsidwe ntchito popereka mankhwala, kupewa matenda, kapenanso kuyang'anira zilonda pogwiritsa ntchito chithunzithunzi chapafupi ndi infrared," anatero Li wa ku Dipatimenti ya Mechanical Engineering.
"Kutha kuyang'anira zilonda kwanuko ndikusintha njira yochiritsira kuti machiritsidwe abwino ndi njira yosangalatsa yofufuza," akutero Li, yemwenso ndi Canada Research Chair ku Biomaterials and Musculoskeletal Health.
Zoyambira Zoyambira:
1. Yunivesite ya McGill
2. Bioinspired amphamvu gel osakaniza m'chimake kwa wangwiro ndi zosunthika pamwamba functionalization. Zhenwei Ma et. al. Zopita Patsogolo pa Sayansi, 2021; 7 (15): eabc3012 DOI: 10.1126/sciadv.abc3012