Izvi zvakawanikwa zvechinyakare zvakabata pfungwa dzeC&EN vapepeti gore rino
naKristal Vasquez
PEPTO-BISMOL CHAKAVANZIKA
Credit: Nat.Commun.
Bismuth subsalicylate's chimiro (Bi = pink; O = tsvuku; C = grey)
Gore rino, boka revanotsvakurudza kubva kuStockholm University rakaputsa chakavanzika chezana remakore rekare: chimiro che bismuth subsalicylate, iyo inoshandiswa muPepto-Bismol (Nat. Commun. 2022, DOI: 10.1038 / s41467-022-29566-0).Vachishandisa electron diffraction, vatsvakurudzi vakawana kuti komboni yacho yakarongwa mumatanda akaita setsvimbo.Nepakati petsvimbo imwe neimwe, maanioni eokisijeni anochinjana pakati pemabhiriji matatu kana mana emabismuth cations.Iyo salicylate anions, panguva iyi, inobatanidza kune bismuth kuburikidza nemapoka avo e-carboxylic kana phenolic.Vachishandisa electron microscopy tekinoroji, vaongorori vakawanawo mutsauko mukumisikidza kwedhizaini.Ivo vanotenda kuti kurongeka uku kunogona kutsanangura kuti sei bismuth subsalicylate chimiro chakwanisa kunzvenga masayendisiti kwenguva yakareba.
Credit: Courtesy of Roozbeh Jafari
Graphene sensors inonamatira kune forearm inogona kupa inoenderera kuyerwa kweropa.
KUSVIRWA NEROPA TATTOOS
Kwemakore anopfuura 100, kuongorora BP yako kwave kureva kuti ruoko rwako rudzvinywe necuff inofefetera.Rimwe divi reiyi nzira, zvisinei, nderokuti kuyerwa kwega kwega kunomiririra kapikicha kadiki kehutano hwemwoyo yemunhu.Asi muna 2022, masayendisiti akagadzira yenguva pfupi graphene "tattoo" iyo inogona kuramba ichitarisa BP kwemaawa akati wandei panguva (Nat. Nanotechnol. 2022, DOI: 10.1038/s41565-022-01145-w).Iyo kabhoni-based sensor array inoshanda nekutumira madiki emagetsi paruoko rweanopfeka uye nekutarisa kuti magetsi anochinja sei sezvo ikozvino inofamba kuburikidza nematishu emuviri.Ukoshi uhwu hunoenderana nekuchinja kwehuwandu hweropa, iyo komputa algorithm inogona kududzira kuita systolic uye diastolic blood pressure kuyerwa.Sekureva kwemumwe wevanyori vechidzidzo ichi, Roozbeh Jafari wekuTexas A&M University, mudziyo uyu waizopa vanachiremba nzira isingatarisirwi yekutarisa moyo wemurwere kwenguva yakareba.Zvinogonawo kubatsira nyanzvi dzekurapa kusefa zvinhu zvisiri izvo zvinokanganisa BP-sekunetseka kushanya kwachiremba.
ZVINOGWARWA NEVANHU
Credit: Mikal Schlosser/TU Denmark
Vazvipiri vana vakagara mukamuri inodzorwa nemamiriro ekunze kuitira kuti vaongorori vadzidze kuti vanhu vanokanganisa sei mhepo yemukati.
Masayendisiti anoziva kuti zvigadzirwa zvekuchenesa, pendi, uye zvinofefetedza mhepo zvese zvinokanganisa kunaka kwemweya wemukati.Vatsvakurudzi vakawana gore rino kuti vanhu vanogona, zvakare.Nekuisa vazvipiri vana mukati mekamuri inodzorwa nemamiriro ekunze, boka rakaona kuti mafuta echisikigo paganda revanhu anogona kuita neozone mumhepo kugadzira hydroxyl (OH) radicals (Science 2022, DOI: 10.1126 / science.abn0340).Kana ichinge yaumbwa, aya ma radicals anoshanda zvakanyanya anogona oxidize emhepo makomisheni uye kugadzira anogona kukuvadza mamorekuru.Mafuta eganda anotora chikamu mune izvi maitiro ndeye squalene, iyo inopindirana ne ozone kuumba 6-methyl-5-hepten-2-one (6-MHO).Ozone inobva yasangana ne6-MHO kuumba OH.Vatsvagiri vanoronga kuvaka pamusoro pebasa iri nekuongorora kuti mazinga eaya anogadzirwa nevanhu hydroxyl radicals angasiyana sei pasi pemamiriro ekunze akasiyana.Zvichakadaro, vanovimba kuti zvakawanikwa izvi zvichaita kuti masayendisiti afunge zvakare maonerwo avanoita kemesitiri yemukati, sezvo vanhu vasingawanzoonekwa semanyuko emhepo.
SAYANSI YAKAKONDERERA DAtya
Kuti vaongorore makemikari anobudisa chepfu yematatya kuti azvidzivirire, vatsvakurudzi vanofanira kutora ganda remhuka.Asi maitiro esampling aripo anowanzo kukuvadza aya akatetepa amphibians kana kutoda euthanasia.Muna 2022, vesainzi vakagadzira imwe nzira ine hunhu hwekuyedza matatya vachishandisa mudziyo unonzi MasSpec Pen, unoshandisa chinyoreso chakafanana nechinyoreso kutora maalkaloid aripo kuseri kwemhuka (ACS Meas. Sci. Au 2022, DOI: 10.1021/acsmeasuresciau.2c00035).Chishandiso ichi chakagadzirwa naLivia Eberlin, analytical chemist paYunivhesiti yeTexas kuAustin.Zvakanga zvakagadzirirwa kubatsira vanachiremba vanovhiya kusiyanisa pakati pehutano negomarara matishu mumuviri wemunhu, asi Eberlin akaziva kuti chimbo ichi chaigona kushandiswa kudzidza matatya mushure mekunge asangana naLauren O'Connell, nyanzvi yebiology paStanford University anodzidza mabatiro anoita matatya uye sequester alkaloids. .
Chikwereti: Livia Eberlin
Iyo mass spectrometry peni inogona kuyera ganda rehupfu matatya pasina kukuvadza mhuka.
Credit: Science/Zhenan Bao
Yakatambanuka, conductive electrode inogona kuyera kushanda kwemagetsi kwemhasuru dzeoctopus.
MA ELECTRODE AKAKOdzerana neOCTOPUS
Kugadzira bioelectronics kunogona kuve chidzidzo mukukanganisa.Flexible mapolymers anowanzo kuomarara sezvo maitiro avo emagetsi anovandudza.Asi timu yevaongorori inotungamirwa neStanford University's Zhenan Bao yakauya neelectrode inotambanuka uye inoitisa, ichibatanidza zvakanakisa zvepasirese.Iyo pièce de resistance ye electrode zvikamu zvayo zvakapindirana-chikamu chega chega chinogadziridzwa kuti chive chinofambisa kana chinogadzirwa kuitira kuti chisapikisane nemaitiro echimwe.Kuratidza kugona kwayo, Bao akashandisa electrode kumutsa tsinga dzeuropi dzembeva uye kuyera kushanda kwemagetsi kwemhasuru dzeoctopus.Akaratidza mhedzisiro yebvunzo mbiri pamusangano weAmerican Chemical Society's Fall 2022.
BULLETPROOF WOOD
Credit: ACS Nano
Ichi nhumbi dzokurwa nadzo dzemapuranga dzinogona kudzinga mabara nekukuvadzwa kushoma.
Gore rino, boka revatsvakurudzi rinotungamirirwa naHuazhong University of Science and Technology's Huiqiao Li rakagadzira nhumbi yehuni yakasimba zvakakwana kuti ibvise bara kubva ku9 mm revolver (ACS Nano 2022, DOI: 10.1021 / acsnano.1c10725).Simba rehuni rinouya kubva kune ayo anochinjika mashiti e lignocellulose uye muchinjiko-yakabatana siloxane polymer.Iyo lignocellulose inoramba fracturing yekutenda kune yayo yechipiri hydrogen zvisungo, iyo inogona kuumbwa zvakare kana yatyoka.Zvichakadaro, iyo pliable polymer inova yakasimba kana yarohwa.Kuti agadzire zvinhu izvi, Li akatora kurudziro kubva kupirarucu, hove yekuSouth America ine ganda rakasimba zvekukwanisa kumira nemazino akapinza epiranha.Nekuti nhumbi dzokurwa nadzo dzemapuranga dzakareruka kupfuura zvimwe zvinhu zvinodzivirira, zvakaita sesimbi, vaongorori vanotenda kuti huni idzi dzinogona kunge dziine mauto nendege.
Nguva yekutumira: Zvita-19-2022