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beat365手机官方网站团队成功地研发了可降解鸡蛋清忆阻器

编辑:xdx 日期:2016-05-10 访问次数:2218

如果一种电子器件能被植入到人体内,执行体征监测、疾病预警、伤口愈合跟踪等,并将信息无线地传送给医生或患者,以便于采取后续措施,然后这些器件被人体体液溶解,吸收并排出而不会对人体造成任何副作用。可以想象这样的电子器件在疾病诊断和治疗上将发挥难以想象的作用。近年来,科学家们利用多种的可降解材料如DNA、蛋白质、可降解金属等来构建各种可降解电子器件,取得了巨大的进步,可降解植入式电子器件离我们的现实生活正越来越近。近期,以beat365手机官方网站汪小知和骆季奎教授为主的研究团队与浙大材料学院及英国剑桥大学卡文迪许实验室研究人员合作,在下一代可降解电子技术上突破性完成了一项新型技术。他们利用纯天然鸡蛋白(Egg Albumen)材料和可降解金属研制出生物兼容的可降解非挥发性储存器--忆阻器(图1)。

 

1.(a)基于鸡蛋清的可降解忆阻器三维结构图;(b)蛋清和蛋清稀释液;(c)器件电测试结果。

该储存器的核心材料是一层30纳米厚的蛋白,上下电极分别由镁和钨薄膜金属构成。改变电极上的电压可以将器件由高阻抗变成低阻抗状态,或反之,达到储存信息的目的。研究表明,此忆阻器可读写数百次,在干燥情况下信息储存三个月而不变。当器件放入水中时,整个器件在3天时间内几乎完全溶解于水,仅留下少许的痕迹。这项研究这为未来植入人体的各类电子系统提供了技术基础。这项工作已被美国化学学会期刊《应用材料与界面》(ACS Applied  Materials & Interfaces)接受 (DOI: 10.1021/acsami.5b10414),并以新闻形式发布。文章一经发表,被EE TimesScience dailyPhys.Org.等三十多家国外科技媒体、杂志等广泛报道并受到广泛关注。

 

2. 器件在水中的溶解过程

 

相关媒体报导链接:

http://thechemicalcompany.nl/news-a-info/american-chemical-society

https://www.sciencedaily.com/releases/2016/04/160427150609.htm

http://phys.org/news/2016-04-dissolvable-electronics-implants-sensors.html

http://www.sciencenewsline.com/news/2016042806000007.html

http://www.electronics-eetimes.com/news/reserachers-make-dissolvable-memristor-based-eggs

http://www.eurekalert.org/pub_releases/2016-04/acs-tde042716.php

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http://www.nanowerk.com/nanotechnology-news/newsid=43256.php

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http://www.digitalnewsmagzine.com/news/2312305/toward-dissolvable-electronics-for-implants-and-sensors.html

http://www.topnewshour.com/report/toward-dissolvable-electronics-for-implants-and-sensors/816964.html

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