State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry , Changchun 130022, China.
ACS Nano. 2014 Mar 25;8(3):2796-803. doi: 10.1021/nn406523y. Epub 2014 Mar 3.
Molecular-level security devices have raised ever-increasing interest in recent years to protect data and information from illegal invasion. Prior molecular keypad locks have an output signal dependent upon not only the appropriate combination but also the exact sequence of inputs, but it cannot be reset or reprogrammed. Here, a DNA-based security system with reset and never-reported reprogram function is successfully developed in proof-of-principle, with which one can change the password in case that the system is cracked. The previous password becomes invalid in the reprogrammed security system. Interestingly, more than one password is designed to permit multiple users to access. By harnessing the intrinsic merit of the different passwords, the system can distinguish different user who is endowed with prior authority. The intelligent device is addressed on solid support and facilitates electronic processes, avoiding chemical accumulation in the system by simple removal of the electrode from the input solution and indicating a main avenue for its further development.
近年来，分子级安全设备引起了越来越多的关注，以保护数据和信息免受非法入侵。以前的分子键盘锁的输出信号不仅取决于正确的组合，还取决于输入的准确顺序，但它不能重置或重新编程。在这里，我们成功地在原理验证中开发了一种具有重置和从未报告过的重新编程功能的基于 DNA 的安全系统，在这种系统中，如果系统被破解，用户可以更改密码。在重新编程的安全系统中，以前的密码将失效。有趣的是，设计了多个密码以允许多个用户访问。通过利用不同密码的固有优点，该系统可以区分具有先前权限的不同用户。智能设备固定在固体支撑物上，并促进电子过程，通过简单地从输入溶液中取出电极来避免系统中的化学积累，并为其进一步发展指明了主要途径。
