严重急性呼吸道综合症冠状病毒2(SARS-CoV-2)因其在全球范围内的迅速传播而获得了越来越多的关注。每个国家都实施了全市范围的封锁和移民法规,以防止感染的传播,造成严重的经济后果。因此,监测环境条件并将此类信息无线传达给人们的材料和技术作为对策受到了相当大的关注。这项研究调查了用于能量收集的无电池磁致伸缩合金的动态特性,以检测人类冠状病毒229E(HCoV-229E)。具有整流功能的轻薄磁致伸缩Fe-Co/Ni复合板,直流(DC)电压存储电容器,并为此开发了无线信息传输电路。通过改进储能电路降低功耗,并且在弯曲振动下的磁致伸缩复合板存储1.9V的直流电压,并在0和10mT的偏置磁场下每5分钟和10s无线传输一次信号到个人计算机,分别。然后,在复合板表面,使用自组装的-COOH基团单层固定了新型CD13生物识别层,从而与-NH2基团形成酰胺键以检测HCoV-229E。弯曲振动测试表明,由于HCoV-229E的结合,共振频率会发生变化。荧光信号表明可以成功检测到HCoV-229E。因此,因为HCoV-229E改变了这个板的动态特性,CD13改性磁致伸缩复合板可以从无线通信时间间隔检测到HCoV-229E。因此,一个无需电池即可传输/检测人类冠状病毒存在的监控系统将很快实现。
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been garnered increasing for its rapid worldwide spread. Each country had implemented city-wide lockdowns and immigration regulations to prevent the spread of the infection, resulting in severe economic consequences. Materials and technologies that monitor environmental conditions and wirelessly communicate such information to people are thus gaining considerable attention as a countermeasure. This study investigated the dynamic characteristics of batteryless magnetostrictive alloys for energy harvesting to detect human coronavirus 229E (HCoV-229E). Light and thin magnetostrictive Fe-Co/Ni clad plate with rectification, direct current (DC) voltage storage capacitor, and wireless information transmission circuits were developed for this purpose. The power consumption was reduced by improving the energy storage circuit, and the magnetostrictive clad plate under bending vibration stored a DC voltage of 1.9 V and wirelessly transmitted a signal to a personal computer once every 5 min and 10 s under bias magnetic fields of 0 and 10 mT, respectively. Then, on the clad plate surface, a novel CD13 biorecognition layer was immobilized using a self-assembled monolayer of -COOH groups, thus forming an amide bond with -NH2 groups for the detection of HCoV-229E. A bending vibration test demonstrated the resonance frequency changes because of HCoV-229E binding. The fluorescence signal demonstrated that HCoV-229E could be successfully detected. Thus, because HCoV-229E changed the dynamic characteristics of this plate, the CD13-modified magnetostrictive clad plate could detect HCoV-229E from the interval of wireless communication time. Therefore, a monitoring system that transmits/detects the presence of human coronavirus without batteries will be realized soon.