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原标题：仅重45Kg的全自动核酸检测平台获批上市：可无人值守放置桌面上海企业研发的全自动核酸检测平台获国家批准上市。    CAPE CANAVERAL, Fla. -- NASA’s Psyche spacecraft rocketed away Friday on a six-year journey to a rare metal-covered asteroid.Most asteroids tend to be rocky or icy, and this is the first exploration of a metal world. Scientists believe it may be the battered remains of an early planet's core, and could shed light on the inaccessible centers of Earth and other rocky planets.SpaceX launched the spacecraft into an overcast midmorning sky from NASA’s Kennedy Space Center. Named for the asteroid it’s chasing, Psyche should reach the huge, potato-shaped object in 2029.“It's so thrilling,” said Laurie Leshin, director of NASA’s Jet Propulsion Laboratory. Added Arizona State University's Jim Bell, part of the Psyche team: “What a great ride so far.”An hour later, the spacecraft separated successfully from the rocket's upper stage and floated away, drawing applause from ground controllers.After decades of visiting faraway worlds of rock, ice and gas, NASA is psyched to pursue one coated in metal. Of the nine or so metal-rich asteroids discovered so far, Psyche is the biggest, orbiting the sun in the outer portion of the main asteroid belt between Mars and Jupiter alongside millions of other space rocks. It was discovered in 1852 and named after Greek mythology’s captivating goddess of the soul.“It’s long been humans’ dream to go to the metal core of our Earth. I mean, ask Jules Verne,” lead scientist Lindy Elkins-Tanton of Arizona State University said ahead of the launch. “The pressure is too high. The temperature is too high. The technology is impossible,” she said. “But there’s one way in our solar system that we can look at a metal core and that is by going to this asteroid.”Astronomers know from radar and other observations that the asteroid is big — about 144 miles (232 kilometers) across at its widest and 173 miles (280 kilometers) long. They believe it’s brimming with iron, nickel and other metals, and quite possibly silicates, with a dull, predominantly gray surface likely covered with fine metal grains from cosmic impacts.Otherwise, it’s a speck of light in the night sky, full of mystery until the spacecraft reaches it after traveling more than 2 billion miles (3.6 billion kilometers).Scientists envision spiky metal craters, huge metal cliffs and metal-encrusted eroded lava flows greenish-yellow from sulfur — “almost certain to be completely wrong,” according to Elkins-Tanton. It's also possible that trace amounts of gold, silver, platinum or iridium — iron-loving elements — could be dissolved in the asteroid's iron and nickel, she said. “There's a very good chance that it’s going to be outside of our imaginings, and that is my fondest hope," she said.Believed to be a planetary building block from the solar system’s formation 4.5 billion years ago, the asteroid can help answer such fundamental questions as how did life arise on Earth and what makes our planet habitable, according to Elkins-Tanton.On Earth, the planet's iron core is responsible for the magnetic field that shields our atmosphere and enables life.Led by Arizona State University on NASA’s behalf, the $1.2 billion mission will use a roundabout route to get to the asteroid. The van-size spacecraft with solar panels big enough to fill a tennis court will swoop past Mars for a gravity boost in 2026. Three years later, it will reach the asteroid and attempt to go into orbit around it, circling as high as 440 miles (700 kilometers) and as close as 47 miles (75 kilometers) until at least 2031.The spacecraft relies on solar electric propulsion, using xenon gas-fed thrusters and their gentle blue-glowing pulses. An experimental communication system is also along for the ride, using lasers instead of radio waves in an attempt to expand the flow of data from deep space to Earth. NASA expects the test to yield more than 10 times the amount of data, enough to transmit videos from the moon or Mars one day.The spacecraft should have soared a year ago, but was held up by delays in flight software testing attributed to poor management and other issues. The revised schedule added extra travel time. So instead of arriving at the asteroid in 2026 as originally planned, the spacecraft won’t get there until 2029.That’s the same year that another NASA spacecraft — the one that just returned asteroid samples to the Utah desert — will arrive at a different space rock as it buzzes Earth.___The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content.。近日，由上海之江生物研发的“小青耕”全自动核酸检测平台获国家药监局批准上市，成为目前国内体积最小、自动化程度更高的一体化磁珠法+荧光PCR核酸检测系统，这一台设备仅重45Kg，可放置桌面，能自动化完成样本管开关盖、移液前处理、纳米磁珠法核酸提取、PCR体系构建、荧光PCR扩增等核酸检测全流程，从而实现无人值守，以此来缓解目前核酸检测专业人员数量不足的问题。

B | “小青耕”全自动核酸检测平台获国家药监局批准上市。上海之江生物 供图9月13日，澎湃新闻（www.thepaper.cn）记者从上海之江生物科技股份有限公司获悉这一消息。一台“小青耕”搭载了48个PCR扩增反应孔，可在2小时内完成48管样本的检测。如果搭配20混1方案，2小时内至少可完成960人份样本，单次检测通量1-48样本灵活设置，可有效提高门、急诊核酸筛查与复核效率，缓解人员不足的矛盾，也可快速提升医疗机构、疾控中心、机场口岸等的全自动核酸检测能力。同时，“小青耕”将核酸检测流程的各模块高度集成，占地面积小于0.4㎡，极大程度节约实验室紧张的空间，有限空间内最大程度提升核酸检测能力。同时搭载全封闭负压系统、紫外消杀和HEPA高效过滤系统，达到生物安全二级标准，全面保护检验人员操作安全。早在2022年4月，上海之江生物另一款核酸检测一体机“青耕一号”也已获批上市。“青耕一号”能连续运转24小时，可全自动化实现单管检测4500管，如果采用20混1方案，日检测量最高可达9万人次，且24小时连续工作仅需人工干预4次进行耗材移放，能快速提升上海尤其机场口岸、医疗机构等区域的大规模核酸检测能力。而与“青耕一号”相比，“小青耕”功能集约紧凑但全面，单台设备仅45Kg，可放置桌面，适用于各类实验室，包括发热门诊、急诊以及移动车载等空间环境相对有限的场所，快速灵活解决个性化需求。上海之江生物科技股份有限公司方面透露，当前，该公司还在开发更多核酸检测一体机可搭载检测项目，致力于减少病人检查多头跑、等待时间长的难题，为分子诊断领域作出更多贡献。返回搜狐，查看更多责任编辑：