Kedu mgbe oke ihe dị mma ga-abụ ihe ọjọọ? Nke ahụ bụ ajụjụ Jonathan Claussen, osote prọfesọ na Ngalaba Mechanical Engineering nke Mahadum Iowa State, na ndị otu ya na-eme nchọpụta bu n'obi inyere ndị ọrụ ugbo aka ịza ma a bịa n'iji ọgwụ nje eme ihe. Ejighị ya eme ihe nwere ike imerụ ihe ọkụkụ nke ndị ọrụ ugbo, ebe ijibiga ihe ókè nwere ike ime ka mmiri na-asọpụta n'ala ma ọ bụ n'ụzọ mmiri.
Claussen na ndị otu ya mepụtara biosensor na-agbanwe agbanwe, dị ọnụ ala na nke enwere ike ịpụpụ nke nwere ike ịchọpụta pesticides na ala. Emere biosensor nke a bụ nke graphene, nanoparticle siri ike ma kwụsie ike, ma na-enye nzaghachi ozugbo, n'adịghị ka oge na ego ọ ga-ewe iji zipu ihe nlele na ụlọ nyocha wee chere nsonaazụ.
USDA's National Institute of Food and Agriculture kwadoro oru ngo a Agriculture and Food Research Initiative inye dị ka akụkụ nke Mmemme Nanotechnology.
A na-eme biosensor site na ibipụta ink graphene mbụ n'ime akwụkwọ. Igwe laser wee na-enyocha ink ahụ iji meziwanye conductivity eletrik ya site n'ịgbado flakes nke ink graphene, na-eme elu nanostructured nke nwere akụkụ atọ.
Claussen kwuru, "Flakes ndị ahụ fọrọ nke nta ka ọ dị ka petals rose na-esi n'elu akwụkwọ ahụ pụta." "Ha na-etolite ihe ndabere iji nwalee ala na ya."
Iji mee nke a, a na-etinye biosensor n'ime slurry nke ala na mmiri. A na-ejikọta ya na onye na-agụ electrochemical na ubi iji nwalee maka pesticide.
Claussen kwuru, sị: “Ọ dị ka eriri ule pH. Nsonaazụ ule nwere ike inyere ndị ọrụ ugbo aka ịghọta ngwa ngwa ole ọgwụ pesticide chọrọ iji kwado ihe ọkụkụ dị mma ma belata mmebi gburugburu ebe obibi. Ọzọkwa, nsonaazụ nwere ike inyere ndị ọrụ ugbo aka ịghọta ebe enwere ike ịmegharị gburugburu ebe obibi ma ọ bụrụ na iji ọgwụ nje eme ihe pụtara.
Biosensor nwere nnukwu ikike iji ya gafee obodo ọrụ ugbo. Enwere ike ịtụgharị akụrụngwa ya maka iji ya na mpaghara biomedical, gburugburu ebe obibi, ma ọ bụ nchekwa nri, naanị site n'ịgbanwe ihe ndị dị ndụ na-enweghị ike imegharị n'elu ya.
Claussen kwuru, sị: "Ihe kacha masị m n'ọrụ a bụ mmetụta ụwa nwere ike ime. "Ihe sensọ graphene anaghị achọ iji ọla dị oke ọnụ ahịa nke a na-ejikarị eme ihe iji kwalite arụmọrụ nke ihe mmetụta electrochemical. Ya mere, ndị mmadụ nwere ike jiri teknụzụ [nke a] mee ihe maka ngwa eletrọnịkị na ihe mmetụta dị ọnụ ala.
- Selina Meiners National Institute of Food and Agriculture
Isi mmalite: USDA Blog