Development of a portable arsenite sensor for detecting arsenic-contaminated water

千年发展目标7c--将无法持续获得安全饮用水的40亿人减少一半--推动了发展中国家水质实地测试的快速增长，在发展中国家，有一句谚语说得很好，‘你无法衡量的，你就无法管理’。世卫组织/儿童基金会监测方案要求将砷作为需要测试的五种核心化学品之一进行测试，因为它在全球范围内自然存在于含水层中，即使在极低水平(十亿分之十)也是有毒的。该项目使用一种独特的酶，创新性地修改了人们熟悉的葡萄糖家庭测试中包含的技术，每年生产数十亿次，通过解决客户的易用性、成本和准确性需求，实现砷测试的阶段性改进。数以百万计的用户已经证明了葡萄糖测试的易用性；现在可以使用类似的技术来改变砷测试，从而产生显著的好处。

Millennium Development Goal 7c - to reduce by half the 4 billion people without sustainable access to safe drinking water - has acted as an impetus for the rapid growth in water quality field-testing in developing countries, where the adage ‘what you cannot measure, you cannot manage’ is apt. The WHO/UNICEF Monitoring Programme requires the testing of arsenic as one of the five core chemicals to be tested, as it is naturally found in aquifers on a global scale and is toxic even at extremely low levels (10 parts per billion). Using a unique enzyme, this project innovatively modifies the technology contained in familiar glucose home tests manufactured in the billions each year, to create a step-change improvement in arsenic testing by solving customer usability, cost and accuracy needs. Millions of users have demonstrated the ease-of-use of glucose tests; now similar technology can be used to transform arsenic testing, resulting in a significant benefit.