Barani Navid, Sarabandi Kamal
Annu Int Conf IEEE Eng Med Biol Soc. 2020 Jul;2020:2459-2462. doi: 10.1109/EMBC44109.2020.9176068.
We have recently postulated that certain bacterial cells within their biofilms are equipped with electrically-polarized and elastic helical fibers called amyloid fibrils which allow the cells to transmit electromagnetic (EM) signal to their surrounding environment through mechanical vibration of these fibrils. A novel and theoretical Multiphysics model based on a coupled system of electrical and mechanical structures is proposed here enabling prediction of efficient signal generation in the radio frequency range among the cells. Next, to demonstrate the advantage of EM-based communication, using communication channel theory, we have compared performance of EM signaling with its biochemical counterpart (quorum sensing) and shown that EM signaling provides much higher data rate, 4 to 5 orders of magnitude. Thus, it could be potentially more efficient and a preferred method for communication among cells. In quorum sensing, biological cells release auto-inducers intercepted by the adjacent cells as a purposeful message signal.
我们最近推测，生物膜内的某些细菌细胞配备有称为淀粉样纤维的电极化且有弹性的螺旋纤维，这些纤维使细胞能够通过这些纤维的机械振动将电磁（EM）信号传输到周围环境中。本文提出了一种基于电结构和机械结构耦合系统的新颖理论多物理模型，能够预测细胞间在射频范围内有效信号的产生。接下来，为了证明基于电磁通信的优势，我们使用通信信道理论，将电磁信号传输与生化信号传输（群体感应）的性能进行了比较，结果表明电磁信号传输的数据速率要高得多，高出4到5个数量级。因此，它可能更高效，是细胞间通信的首选方法。在群体感应中，生物细胞释放自诱导物，被相邻细胞截获作为一种有目的的信息信号。
