Researchers have developed a handheld cancer-screening device capable of detecting early-stage cancer biomarkers from just a single drop of blood. Developed by Westlake University in China, this new technology shrinks refrigerator-sized laboratory equipment into a portable device while boosting detection accuracy.<\/p>\n
The South China Morning Post (SCMP) reported that the team boosted \u201caccuracy to about 10,000 times that of conventional methods.\u201d The system utilizes a 3D Bound States-in-the-Continuum (BIC) sensing chip. It requires only the chip, an LED light source, and a photodetector to operate.<\/p>\n
Measuring the whispers of light<\/p>\n
The promise of biopsy<\/a> \u2014 catching microscopic traces of a tumor from a simple blood draw \u2014 has long been a logistical challenge. To catch the faint signals of early-stage tumors, doctors required huge apparatus packed with complex optical paths, expensive spectrometers, and sensitive prisms.\u00a0 Moreover, these multi-hundred-dollar tests stayed locked inside specialized institutional laboratories, miles away from the patients who needed them most<\/p>\n In this new work, the team tried to shift the focus from complex light wavelengths to simple light intensity.\u00a0 Notably, the bulky equipment was replaced with a highly sensitive mechanism called Q-modulated refractometric sensing.\u00a0<\/p>\n To harness this, a 3D metamaterial chip was designed. It can detect microscopic changes in the way light bends when cancer biomarkers<\/a> are present. Furthermore, the slow, expensive process of standard chip manufacturing was tackled by utilizing an innovative aluminum-based fabrication technique.\u00a0<\/p>\n To put the system\u2019s incredible sensitivity into perspective, imagine the entire range of how light can bend is stretched out along a one-meter ruler. Within that scale, this device is so precise that it can detect changes as tiny as a few millionths of a meter.<\/p>\n<\/p>\n High accuracy<\/p>\n The team moved away from the painstaking process of manufacturing chips one by one, adopting a method more akin to movable-type printing. Reportedly<\/a>, this allows for mass production of thousands of identical 3D sensing chips on a single wafer, slashing the cost per chip to just $5.<\/p>\n This affordable chip requires only a basic LED and a photodetector to measure light intensity, creating a simple, compact device suitable for at-home use.\u00a0To prove its real-world power, the team partnered with Xiamen University to successfully track elusive lung cancer biomarkers (extracellular vesicles<\/a>, sEVs) that are typically present at levels far too low for traditional laboratory equipment to detect.<\/p>\n In trials, the handheld device proved about 10,000 times more sensitive than the standard laboratory test (ELISA) at spotting early-stage lung cancer biomarkers.\u00a0 When evaluated across 171 patient<\/a> serum samples, this pocket-sized tool achieved a remarkable 94.9% accuracy for early cancer<\/a> detection and 92.1% for post-surgery monitoring.\u00a0<\/p>\n In comparison, the standard laboratory method managed an accuracy rate of just 74.7%, highlighting the device\u2019s potential to dramatically improve early diagnosis and patient tracking. By proving that ultra-precise, light-based sensors can be shrunk down and mass-produced affordably, the research establishes a reliable blueprint for a new generation of pocket-sized medical tools.\u00a0<\/p>\n Whether used by a doctor in a major city hospital, a health worker in an isolated rural village, or a patient running a self-test at the kitchen table, this technology aims to make highly accurate, early disease detection universal, instant, and accessible worldwide.<\/p>\n","protected":false},"excerpt":{"rendered":"Researchers have developed a handheld cancer-screening device capable of detecting early-stage cancer biomarkers from just a single drop…\n","protected":false},"author":2,"featured_media":985175,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[11],"tags":[1502,18187,49337,1204,156469,1395,105,16,15],"class_list":["post-985174","post","type-post","status-publish","format-standard","has-post-thumbnail","category-health","tag-biology","tag-blood","tag-blood-test","tag-cancer","tag-cancer-screening","tag-china","tag-health","tag-uk","tag-united-kingdom"],"share_on_mastodon":{"url":"","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/985174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/comments?post=985174"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/985174\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media\/985175"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media?parent=985174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/categories?post=985174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/tags?post=985174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}