Abacwaningi baseNorth Carolina State University benze indlela yokulawula ukushuba kwesimo sezinsimbi eziwuketshezi ngokusebenzisa ama-voltage aphansi kakhulu, bevula umnyango wesizukulwane esisha samasekethe e-elekthronikhi alungiseka kabusha, izimpondo nobunye ubuchwepheshe.Le ndlela incike ekutheni "isikhumba" se-oxide sensimbi, esingafakwa noma sisuswe, sisebenza njenge-surfactant, sinciphisa ukungezwani kwendawo phakathi kwensimbi noketshezi oluzungezile.googletag.cmd.push(umsebenzi() {googletag.display('div-gpt-ad-1449240174198-2′); });
Abacwaningi basebenzisa ingxube yensimbi eyi-gallium ne-indium.Ku-substrate, ingxubevange engenalutho inokuqina okuphezulu kakhulu kwendawo, cishe ama-millinewtons (mN)/imitha angama-500, okwenza insimbi yakhe amapheshana ayindilinga.
"Kodwa sithole ukuthi ukusetshenziswa kweshaja encane enhle - engaphansi kwe-volt eyi-1 - kubangele ukusabela kwe-electrochemical okwakhiwa ungqimba lwe-oxide ebusweni bensimbi, okunciphise kakhulu ukungezwani komhlaba kusuka ku-500 mN/m kuya cishe ku-2 mN/ m."kusho uMichael Dickey, Ph.D., uprofesa ohlanganyele wobunjiniyela bamakhemikhali nobunjiniyela be-biomolecular eSifundazweni saseNorth Carolina kanye nombhali omkhulu wephepha elichaza umsebenzi."Lolu shintsho ludala insimbi ewuketshezi ukuthi ikhule njengekhekhe elingaphansi kwamandla adonsela phansi."
Abacwaningi baphinde babonisa ukuthi ukuguqulwa kokungezwani kwendawo kuyabuyiselwa emuva.Uma abacwaningi beshintsha i-polarity yokushaja isuka kokuphozithivu iye kwenegethivu, i-oxide iyasuswa futhi ukushuba okuphezulu kwendawo kuyabuya.Ukungezwani okungaphezulu kungalungiswa phakathi kwalezi zimo ezimbili ezidlulele ngokushintsha ingcindezi ngokunyuka okuncane.Ungabuka ividiyo yale nqubo ngezansi.
"Ushintsho oluba umphumela wokushuba kwesimo sezulu lungenye yezinkulu kunazo zonke ezake zaqoshwa, eziphawulekayo uma kubhekwa ukuthi zingalawulwa ngaphansi kwe-volt," kusho u-Dickey.“Singasebenzisa le nqubo ukulawula ukunyakaza kwezinsimbi eziwuketshezi, okusivumela ukuthi siguqule ukwakheka kwezimpondo futhi senze noma siphule amasekhethi.Ingasetshenziswa futhi eziteshini ezincane ze-microfluidic, i-MEMS, noma kumadivayisi we-photonic kanye ne-optical.Izinto eziningi zakha ama-oxide angaphezulu, ngakho-ke lo msebenzi unganwetshwa ngale kwezinsimbi eziwuketshezi ezifundwe lapha.”
Ilebhu ka-Dickey ike yabonisa ngaphambilini indlela ewuketshezi yensimbi “yokuphrinta kwe-3D” esebenzisa ungqimba lwe-oxide olwakha emoyeni ukusiza insimbi ewuketshezi igcine umumo wayo – okufana nalokho okwenziwa ungqimba lwe-oxide ngengxubevange yesisombululo se-alkali..
"Sicabanga ukuthi ama-oxide aziphatha ngendlela ehlukile ezindaweni eziyisisekelo kunasemoyeni," kusho u-Dickey.
Ulwazi olwengeziwe: I-athikili ethi “Umsebenzi omkhulu futhi oshintshekayo wangaphezulu wensimbi ewuketshezi ngokusebenzisa i-oxidation yangaphezulu” izoshicilelwa ku-inthanethi ngoSepthemba 15 ku-Proceedings of the National Academy of Sciences:
Uma uhlangabezana nephutha lokuthayipha, ukunemba, noma ungathanda ukuhambisa isicelo sokuhlela okuqukethwe kwaleli khasi, sicela usebenzise leli fomu.Ngemibuzo ejwayelekile, sicela usebenzise ifomu lethu lokuxhumana.Ukuze uthole impendulo evamile, sicela usebenzise isigaba sokuphawula komphakathi esingezansi (izincomo sicela).
Impendulo yakho ibaluleke kakhulu kithi.Nokho, ngenxa yobuningi bemilayezo, asikwazi ukuqinisekisa izimpendulo ngazinye.
Ikheli lakho le-imeyili lisetshenziselwa ukwazisa abamukeli kuphela ukuthi ngubani othumele i-imeyili.Ikheli lakho noma ikheli lomamukeli ngeke lisetshenziselwe enye injongo.Ulwazi olufakile luzovela ku-imeyili yakho futhi ngeke lugcinwe yi-Phys.org nganoma iyiphi indlela.
Thola izibuyekezo zamasonto onke kanye/noma zansuku zonke ebhokisini lakho lokungenayo.Ungazikhipha ohlwini noma nini futhi ngeke sabelane ngedatha yakho nezinkampani zangaphandle.
Le webhusayithi isebenzisa amakhukhi ukwenza lula ukuzulazula, ukuhlaziya ukusebenzisa kwakho amasevisi ethu, ukuqoqa idatha ukuze wenze izikhangiso zibe ngokwakho, futhi inikeze okuqukethwe okuvela kwabanye abantu.Ngokusebenzisa iwebhusayithi yethu, uyavuma ukuthi uyifundile futhi wayiqonda Inqubomgomo yethu Yobumfihlo kanye Nemigomo Yokusebenzisa.