Ua loaʻa kēia mau ʻike ʻano i ka manaʻo o nā mea hoʻoponopono C&EN i kēia makahiki
na Krystal Vasquez
PEPTO-BISMOL POHIHIHIHI
ʻAe: Nat.Commun.
ʻO ka hale o Bismuth subsalicylate (Bi = ʻulaʻula; O = ʻulaʻula; C = hina)
I kēia makahiki, ua hoʻokaʻawale kahi hui o nā mea noiʻi mai ke Kulanui ʻo Stockholm i kahi mea pohihihi o ke kenekulia: ke ʻano o ka bismuth subsalicylate, ka mea hana ikaika ma Pepto-Bismol (Nat. Commun. 2022, DOI: 10.1038/s41467-022-29566-0).I ka hoʻohana ʻana i ka diffraction electron, ua ʻike nā mea noiʻi ua hoʻonohonoho ʻia ka pūhui i nā ʻāpana like ʻole.Ma ke kikowaena o kēlā me kēia koʻokoʻo, ʻokoʻa nā anion oxygen ma waena o ka hoʻopili ʻana i ʻekolu a me ʻehā bismuth cations.ʻO nā anion salicylate, i kēia manawa, hoʻohui i ka bismuth ma o kā lākou hui carboxylic a phenolic paha.Me ka hoʻohana ʻana i nā ʻenehana microscopy electron, ʻike pū nā mea noiʻi i nā ʻano like ʻole o ka hoʻopaʻa ʻana o ka papa.Manaʻo lākou e wehewehe paha kēia hoʻonohonoho ʻino i ke kumu i hiki ai i ka hale o bismuth subsalicylate ke pale aku i nā ʻepekema no ka lōʻihi.
Loaʻa ʻia: Na Roozbeh Jafari
Hiki i nā mea ʻike graphene i pili i ka forearm ke hāʻawi i nā ana koko mau.
NA KOKO KOKO
No nā makahiki he 100, ʻo ka nānā ʻana i ke kahe koko ke ʻano o ka ʻomi ʻana i kou lima me kahi puʻupuʻu inflatable.Eia naʻe, ʻo kekahi ʻaoʻao o kēia ʻano, ʻo kēlā me kēia ana ke hōʻike wale nei i kahi kiʻi kiʻi liʻiliʻi o ke olakino cardiovascular o ke kanaka.Akā i ka makahiki 2022, ua hana nā kānaka ʻepekema i kahi "tattoo" graphene no ka manawa lōʻihi e hiki ke nānā mau i ke koko no kekahi mau hola i ka manawa (Nat. Nanotechnol. 2022, DOI: 10.1038/s41565-022-01145-w).Hoʻohana ka pūʻulu ʻike carbon-based ma ka hoʻouna ʻana i nā au uila liʻiliʻi i ka lima o ka mea hoʻohana a me ka nānā ʻana i ka loli ʻana o ka uila i ka neʻe ʻana o ke au i loko o nā ʻiʻo o ke kino.Hoʻopili ʻia kēia waiwai me nā loli i ka nui o ke koko, hiki i kahi algorithm kamepiula ke unuhi i loko o nā ana koko systolic a me diastolic.Wahi a kekahi o nā mea kākau o ka noiʻi, ʻo Roozbeh Jafari o Texas A&M University, e hāʻawi ka hāmeʻa i nā kauka i kahi ala ʻike ʻole e nānā i ke olakino o ka naʻau o ka mea maʻi i nā manawa lōʻihi.Hiki iā ia ke kōkua i nā kauka lapaʻau e kānana i nā mea ʻē aʻe e pili ana i ke kahe koko-e like me ke kipa koʻikoʻi i ke kauka.
NA MEA HUI KANAKA
ʻAi kālā: Mikal Schlosser/TU Denmark
ʻEhā mau mea manawaleʻa i noho i loko o kahi keʻena mālama ʻia i ke aniau i hiki i nā mea noiʻi ke aʻo i ka hopena o ke kanaka i ka maikaʻi o ka ea o loko.
Ua ʻike nā kānaka ʻepekema ʻo ka hoʻomaʻemaʻe ʻana i nā huahana, pena, a me nā mea hoʻomaʻemaʻe ea e pili ana i ka maikaʻi o ka ea o loko.Ua ʻike ka poʻe noiʻi i kēia makahiki hiki i nā kānaka.Ma ka waiho ʻana i ʻehā mau mea manawaleʻa i loko o kahi keʻena mālama ʻia i ke ea, ua ʻike kahi hui e hiki ke hoʻopili ʻia nā aila kūlohelohe ma ka ʻili o nā kānaka me ka ozone i ka lewa e hana i nā radical hydroxyl (OH) (Science 2022, DOI: 10.1126/science.abn0340).I ka manawa i hana ʻia ai, hiki i kēia mau radical reactive ke hoʻoheheʻe i nā pūhui airborne a hana i nā molekala pōʻino.ʻO ka ʻaila ʻili e komo ana i kēia mau hopena he squalene, ka mea e hana me ka ozone e hana i ka 6-methyl-5-hepten-2-one (6-MHO).Hoʻopili ka Ozone me 6-MHO i OH.Hoʻolālā ka poʻe noiʻi e kūkulu ma luna o kēia hana ma ka noiʻi ʻana i ke ʻano o nā pae o kēia mau radical hydroxyl i hana ʻia e ke kanaka ma lalo o nā kūlana kaiapuni like ʻole.I kēia manawa, manaʻolana lākou e noʻonoʻo hou nā ʻepekema i ke ʻano o kā lākou loiloi ʻana i ka kemika o loko, no ka mea ʻaʻole ʻike pinepine ʻia nā kānaka he kumu o ka hoʻokuʻu ʻana.
ANAʻANA-PALAPALA
No ke aʻo ʻana i nā kinikona e ʻona ai nā rana i mea e pale ai iā lākou iho, pono nā mea noiʻi e lawe i nā ʻili ʻili mai nā holoholona.Akā, hoʻopilikia pinepine nā ʻano hana laʻana i kēia mau amphibian maʻalahi a i ʻole koi ʻia euthanasia.I ka makahiki 2022, ua hoʻomohala ka poʻe ʻepekema i kahi ʻano hana kanaka e hoʻāʻo ai i nā rana me ka hoʻohana ʻana i kahi mea i kapa ʻia ʻo MasSpec Pen, e hoʻohana ana i kahi mea hoʻohālike e like me ka peni e ʻohi ai i nā alkaloids i loaʻa ma ke kua o nā holoholona (ACS Meas. Sci. Au 2022, DOI: 10.1021/acsmeasuresciau.2c00035).Ua hoʻokumu ʻia ka hāmeʻa e Livia Eberlin, he mea kālai lāʻau ma ke Kulanui o Texas ma Austin.Ua manaʻo mua ʻia e kōkua i nā kauka lapaʻau e hoʻokaʻawale i waena o nā ʻiʻo olakino a me ka maʻi kanesa i loko o ke kino o ke kanaka, akā ua ʻike ʻo Eberlin e hiki ke hoʻohana ʻia ka mea kani e aʻo ai i nā rana ma hope o kona hālāwai ʻana me Lauren O'Connell, he mea olaola ma ke Kulanui ʻo Stanford nāna e aʻo i ka hana ʻana o nā rana a me nā alkaloids. .
Loaʻa ʻia: Livia Eberlin
Hiki i ka peni spectrometry nui ke ho'āʻo i ka ʻili o nā rana ʻawaʻawa me ka hana ʻole i nā holoholona.
Loaʻa ʻia: Science/Zhenan Bao
Hiki ke ana i ka hana uila o nā ʻiʻo o ka heʻe i kahi electrode lohi, conductive.
KUPONO NA ELECTRODE NO KA OCTOPUS
ʻO ka hoʻolālā ʻana i ka bioelectronics hiki ke lilo i haʻawina i ke kuʻikahi.Paʻa pinepine nā polymers maʻalahi i ka hoʻomaikaʻi ʻana o kā lākou waiwai uila.Akā ʻo kahi hui o nā mea noiʻi i alakaʻi ʻia e ke Kulanui ʻo Stanford ʻo Zhenan Bao i hele mai me kahi electrode i ʻōlima a conductive, e hui pū ana i ka maikaʻi o nā ao ʻelua.ʻO ka pièce de résistance o ka electrode kona mau ʻāpana pili—ua hoʻopaʻa ʻia kēlā me kēia ʻāpana i conductive a malleable paha i ʻole e kūʻē i nā waiwai o kekahi.No ka hōʻike ʻana i kona hiki, ua hoʻohana ʻo Bao i ka electrode e hoʻoulu i nā neurons i loko o ka lolo o nā ʻiole a e ana i ka hana uila o nā ʻiʻo o ka heʻe.Ua hōʻike ʻo ia i nā hopena o nā hoʻokolohua ʻelua ma ka hui ʻo American Chemical Society's Fall 2022.
LAAU PALAPALA
ʻAe: ACS Nano
Hiki i kēia pale lāʻau ke pale aku i nā pōkā me ka liʻiliʻi o ka pōʻino.
I kēia makahiki, ua hana kahi hui o nā mea noiʻi i alakaʻi ʻia e Huazhong University of Science and Technology's Huiqiao Li i kahi pale lāʻau ikaika e pale aku ai i ka pana pōkā mai ka 9 mm revolver (ACS Nano 2022, DOI: 10.1021/acsnano.1c10725).Loaʻa ka ikaika o ka lāʻau mai kona mau ʻāpana lignoscellulose a me kahi polymer siloxane i hoʻopili ʻia.Kū'ē ka lignoscellulose i ka haʻihaʻi ʻana i kāna mau paʻa hydrogen lua, hiki ke hana hou i ka wā i haki ai.I kēia manawa, ʻoi aku ka paʻa o ka polymer pliable ke pā.No ka hana ʻana i ka mea, ua hoʻoikaika ʻo Li i ka pirarucu, he iʻa ʻAmelika Hema me ka ʻili paʻakikī e kū i nā niho ʻoi o ka piranha.No ka mea, ʻoi aku ka māmā o ka pale lāʻau ma mua o nā mea ʻē aʻe e pili ana i ka hopena, e like me ke kila, manaʻo ka poʻe noiʻi hiki ke loaʻa i ka lāʻau nā noi koa a me nā mokulele.
Ka manawa hoʻouna: Dec-19-2022