Kugadzira imwe eco-inoshamwaridzika imwe nzira yepurasitiki yekurongedza chikafu uye midziyo, musayendisiti weRutgers University akagadzira biodegradable chirimwa-based coating iyo inogona kupfapfaidzwa pachikafu kudzivirira kubva kune pathogenic uye spoilage microorganisms uye kukuvara kwekutakura.#Pepa mukombe fan

A scalable process inogona kuderedza kuipa kwezvakatipoteredza kukanganisa kwepurasitiki chikafu kurongedza uye kuchengetedza hutano hwevanhu.

Philippe Democritu, director weCentre for Nanoscience uye Advanced Materials Research, uye Henry Rutgers Chikoro chePublic Health uye Purofesa weNanoscience uye Environmental Bioengineering paInstitute of Environmental and Occupational Health Sayenzi.“Takazvibvunzawo kuti, ‘Tingagadzira here mapeji anorebesa pasherufu, anoderedza kuraswa kwezvokudya, uye anowedzera kuchengetedzeka kwezvokudya?’”

Demokritou akawedzera kuti: "Zvatiri kutaura ndeye tekinoroji inokura iyo inotibvumira kushandura biopolymers, iyo inogona kubviswa kubva mumarara echikafu sechikamu chehupfumi hwedenderedzwa, kuita tambo dzakangwara dzinogona kuputira chikafu zvakananga.Ichi chikamu chitsva chechizvarwa che "smart" uye "green" chikafu chekuisa".

Tsvagiridzo iyi yakaitwa mukubatana nevasainzi vepaHarvard University uye yakapihwa mari neHarvard-Nanyang Technological University/Singapore Sustainable Nanotechnology Initiative.#Wholesale Yibin bepa mukombe fan

Chinyorwa chavo, chakaburitswa mujenari resainzi 《Nature Foods》, inotsanangura tekinoroji yekurongedza ichishandisa polysaccharide/biopolymer-based fibers.Kufanana nedandemutande rakakandwa neMarvel Comics character Spider-Man, iyo viscous material inogona kuruka kubva mumudziyo wekudziya wakafanana neoumisa bvudzi uye “kuderera” pamusoro pezvikafu zvemarudzi ese nemasaizi, zvakaita seavocado kana brisket Steak.Chikafu chakaputirwa chikafu chakasimba zvakakwana kudzivirira mavanga uye chine antibacterial agents kurwisa kuparara uye hutachiona hunokonzera zvirwere hwakadai seE. coli neListeria.

Bepa rekutsvagisa rinotsanangura nzira inodaidzwa kuti yakanangwa rotary jet kuruka, maitiro ekugadzira biopolymers, uye ongororo yehuwandu inoratidza kuti kupfekedza kunowedzera hupenyu hwesherufu yemakotapeya ne50 muzana.Ongororo yakaitwa iyi inoti kuvharika uku kunogona kugezwa nemvura yobva yaparara muvhu mukati memazuva matatu.

Iyo nyowani yekurongedza ine chinangwa chekugadzirisa dambudziko rakakomba rezvakatipoteredza: kuwanda kwepetroleum-yakavakirwa mapurasitiki zvigadzirwa mumarara.Kuedza kumisa kushandiswa kwepurasitiki, semutemo mumatunhu akaita seNew Jersey kubvisa tsika yekupa mabhegi epurasitiki muzvitoro zvegirosari, zvingabatsira, akadaro Demokritou.Asi vanoda kuita zvakawanda.#APP bepa mukombe fan

“Ini handipokane nemapurasitiki, ndinopokana nemapurasitiki ane petroleum atinongoramba tichirasa kunze uko nekuti chikamu chidiki chete chinogona kugadzirwa patsva,” akadaro Demokritou.Kwemakore makumi mashanu kusvika makumi matanhatu apfuura, muzera repurasitiki, takaisa matani mabhiriyoni matanhatu emarara epurasitiki munzvimbo yedu.Ikoko vanoderera zvishoma nezvishoma.Zvimedu zviduku izvi zviri kupinda mumvura yatinonwa, zvokudya zvatinodya uye mhepo yatinofema.”

Humbowo huri kukura kubva kuchikwata cheDemokritou chekutsvagisa uye nevamwe vanonongedza kune zvinogona kuitika muhutano.

Pepa rinotsanangura kuti fiber itsva inoputira chikafu inosanganiswa sei neinowanzoitika inorwisa mabhakitiriya - thyme mafuta, citric acid uye nisin.Vatsvagiri vari muchikwata cheDemokritou chekutsvagisa vanogona kuronga iyo yakangwara zvinhu kuita se sensor, activate uye kuparadza mabhakitiriya emhando yekuona kuti chikafu chinosvika chisina kusvibiswa.VaDemokritou vati izvi zvichagadzirisa kushushikana kuri kuramba kuchikwira pamusoro pezvirwere zvinokonzerwa nechikafu uye kuderedza dambudziko rekuparara kwechikafu.#Pepa Mukombe Fan Yekunopisa Chinwiwa

Masayendisiti eHarvard akaita chidzidzo ichi aisanganisira Kevin Kit Parker, Huibin Chang, Luke Macqueen, Michael Peters naJohn Zimmerman veChirwere cheBiophysics Group paJohn A. Paulson School of Engineering and Applied Sciences;Harvard Chan Chikoro cheHutano Hwevanhu Vezvakatipoteredza Jie Xu, Zeynep Aytac naTao Xu kubva kuCenter for Nanotechnology uye Nanotoxicology, Dhipatimendi rehutano.#https://www.nndhpaper.com/