phone gadget to diagnose disease 手机小程序可检测疾病-凯发k8官网

phone gadget to diagnose disease 手机小程序可检测疾病
文章来源:未知 文章作者:meng 发布时间:2009-07-22 03:04 字体: [ ] 
(单词翻译:双击或拖选)

researchers have developed an add-on to a mobile phone that can take 1 images and analyse them to diagnose diseases such as 2.

研究人员已经研究出一个移动电话的附加装置,可以检测和分析诸如肺结核等疾病。

the prototype of the device
the prototype of the device

the cellscope works as a so-called fluorescence microscope(荧光显微镜) that can identify the markers of disease.

it is hoped the device will be useful in the developing world, where such medical diagnostics are rare but mobile ownership and 3 are common.

the research is published in the free-access journal plos one.

the cellscope is made up of conventional(普通的,常见的) microscope optics(光学) as well as some equipment to make it function as a fluorescence microscope.

fluorescence occurs when certain 4 are 6(阐释,说明) with a certain colour and "shine" for a period in a different colour.

7 "tagging" molecules can be 8 designed to 9 on to, for instance, the bacteria that are a sign of tuberculosis (tb).

but diagnosing tuberculosis requires a fluorescence microscope, which can 5 a blood sample that has been treated with "tagging" molecules and detect just the light that those molecules emit(发出,放射) with great sensitivity.

however, typical fluorescence microscopes are bulky(庞大的), expensive devices limited to hospitals and laboratories.

"there are other people who have been working on developing portable fluorescent microscopes," said david breslauer, a university of california berkeley researcher and lead author of the study.

"the innovation on our front is that we've integrated that with a cell phone rather than just making a standalone(独立的,单独的) microscope."

the researchers used a standard nokia handset with a 3.2 megapixel camera, developing a "snap-on" addition that includes the microscope optics and a 10 for blood samples on glass slides.

the cellscope uses cheap commercial light-emitting diodes(发光二极管) as the light source - in place of the high-power, gas-filled lamps used in laboratory versions of the device, and cheap optical filters to 11 the light coming from the fluorescent(荧光的) tags.

the device has a resolution of just over one millionth of a metre, and the team was able to identify tuberculosis bacteria in a sample. several other tagging molecules are in development to address the 12 of other diseases.

upon the removal of the filters, they were able to use the cellscope as a standard, white-light microscope, identifying 13(疟疾) 14(寄生效应) and the misshapen(残缺的,畸形的) cells typical of 15(镰刀) cell anaemia(贫血).

'portable clinic'

mr breslauer says that more than just a camera, the 16 of a mobile phone "gives us access to the computational power of the phone as well as the mobile communications aspect".

that computational(计算的) power could be put to use in running image analysis software, which could easily be built into a small application that the phone runs.

but it is the mobile communication aspect that makes the device particularly useful for use "in the field".

"in many developing world and rural areas, you could be hundreds of miles from hospitals or miles away from power - but the mobile 17 is well-established and pretty much blanketing the globe," mr breslauer said.

"so if you can have a portable, battery-operated system to take these images, analyse, and transfer them, you're creating a portable healthcare clinic. your doctor can see your samples without actually having to be present."

the team is now making a more 18(强壮的,强健的), "field-ready" version of the device, which will be used in field testing and clinical trials in the future.



点击收听单词发音收听单词发音  

1 xunzms     
adj.详细的,详尽的,极注意细节的,完全的
参考例句:
  • he had made a detailed study of the terrain.他对地形作了缜密的研究。
  • a detailed list of our publications is available on request.我们的出版物有一份详细的目录备索。
2 bprym     
n.结核病,肺结核
参考例句:
  • people used to go to special health spring to recover from tuberculosis.人们常去温泉疗养胜地治疗肺结核。
  • tuberculosis is a curable disease.肺结核是一种可治愈的病。
3 nvwz7v     
n.报导,保险范围,保险额,范围,覆盖
参考例句:
  • there's little coverage of foreign news in the newspaper.报纸上几乎没有国外新闻报道。
  • this is an insurance policy with extensive coverage.这是一项承保范围广泛的保险。
4 187c25e49d45ad10b2f266c1fa7a8d49     
分子( molecule的名词复数 )
参考例句:
  • the structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。
  • inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里,大分子裂变为小分子。
5 zcsz4     
vt.照亮,照明;用灯光装饰;说明,阐释
参考例句:
  • dreams kindle a flame to illuminate our dark roads.梦想点燃火炬照亮我们黑暗的道路。
  • they use games and drawings to illuminate their subject.他们用游戏和图画来阐明他们的主题。
6 98b351e9bc282af85e83e767e5ec76b8     
adj.被照明的;受启迪的
参考例句:
  • floodlights illuminated the stadium. 泛光灯照亮了体育场。
  • the illuminated city at night 夜幕中万家灯火的城市
7 zz2y3     
adj.荧光的,发出荧光的
参考例句:
  • they observed the deflections of the particles by allowing them to fall on a fluorescent screen.他们让粒子落在荧光屏上以观察他们的偏移。
  • this fluorescent lighting certainly gives the food a peculiar color.这萤光灯当然增添了食物特别的色彩。
8 hviwq     
adv.特定地;特殊地;明确地
参考例句:
  • they are specially packaged so that they stack easily.它们经过特别包装以便于堆放。
  • the machine was designed specially for demolishing old buildings.这种机器是专为拆毁旧楼房而设计的。
9 g2wxs     
n.门闩,窗闩;弹簧锁
参考例句:
  • she laid her hand on the latch of the door.她把手放在门闩上。
  • the repairman installed an iron latch on the door.修理工在门上安了铁门闩。
10 wc4xq     
n.持有者,占有者;(台,架等)支持物
参考例句:
  • the holder of the office of chairman is reponsible for arranging meetings.担任主席职位的人负责安排会议。
  • that runner is the holder of the world record for the hundred-yard dash.那位运动员是一百码赛跑世界纪录的保持者。
11 g3exu     
vt.使孤立,隔离
参考例句:
  • do not isolate yourself from others.不要把自己孤立起来。
  • we should never isolate ourselves from the masses.我们永远不能脱离群众。
12 gvpxc     
n.诊断,诊断结果,调查分析,判断
参考例句:
  • his symptoms gave no obvious pointer to a possible diagnosis.他的症状无法作出明确的诊断。
  • the engineer made a complete diagnosis of the bridge's collapse.工程师对桥的倒塌做一次彻底的调查分析。
13 b2xyb     
n.疟疾
参考例句:
  • he had frequent attacks of malaria.他常患疟疾。
  • malaria is a kind of serious malady.疟疾是一种严重的疾病。
14 a8076647ef34cfbbf9d3cb418df78a08     
寄生物( parasite的名词复数 ); 靠他人为生的人; 诸虫
参考例句:
  • these symptoms may be referable to virus infection rather than parasites. 这些症状也许是由病毒感染引起的,而与寄生虫无关。
  • kangaroos harbor a vast range of parasites. 袋鼠身上有各种各样的寄生虫。
15 eetzb     
n.镰刀
参考例句:
  • the gardener was swishing off the tops of weeds with a sickle.园丁正在用镰刀嗖嗖地割掉杂草的顶端。
  • there is a picture of the sickle on the flag. 旗帜上有镰刀的图案。
16 bq7z8f     
n.设立,合并,法人组织
参考例句:
  • the incorporation of air bubbles in the glass spoiled it.玻璃含有气泡,使它质量降低。
  • the company will be retooled after the incorporation.合并之后的公司要进行重组。
17 ubbz5     
n.下部构造,下部组织,基础结构,基础设施
参考例句:
  • we should step up the development of infrastructure for research.加强科学基础设施建设。
  • we should strengthen cultural infrastructure and boost various types of popular culture.加强文化基础设施建设,发展各类群众文化。
18 fxvx7     
adj.强壮的,强健的,粗野的,需要体力的,浓的
参考例句:
  • she is too tall and robust.她个子太高,身体太壮。
  • china wants to keep growth robust to reduce poverty and avoid job losses,ap commented.美联社评论道,中国希望保持经济强势增长,以减少贫困和失业状况。
tag标签: disease phone diagnose
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