Mougkogiannis Panagiotis, Adamatzky Andrew
Unconventional Computing Laboratory, University of the West of England, Bristol BS16 1QY, U.K.
Langmuir. 2025 Jun 10;41(22):13974-13992. doi: 10.1021/acs.langmuir.5c00932. Epub 2025 May 29.
This study looks at how proteinoid microspheres and their magnetic polystyrene (PS) hybrids behave electrochemically. It also explores their computational abilities. These systems show complex membrane potential dynamics. Pure proteinoids spike without external influence, ranging from 5.39 to 9.81 mV. In contrast, PS-modified variants exhibit sinusoidal oscillations. Their behavior can be described by the equation () = sin(2π) + , where is about 1.5 mV and is around 0.05 Hz. Electrochemical impedance spectroscopy shows key differences in charge transport. The PS-modified systems have better conductivity: || = 7.22 × 10 Ω compared to || = 2.03 × 10 Ω. The systems can perform Boolean logic operations with a 5 mV threshold. They show time-dependent gate behavior, making them suitable for unconventional computing applications. Doping with Fe(NO) changes the electrical response. This happens through redox processes where Fe gains an electron to become Fe. As a result, there are greater potential differences and more complex timing behaviors. These findings help us understand proteinoid-based bioelectricity better. They also show how these building blocks can be used in biomolecular computing systems.
本研究着眼于类蛋白微球及其磁性聚苯乙烯(PS)杂化物的电化学行为。它还探索了它们的计算能力。这些系统表现出复杂的膜电位动态。纯类蛋白在无外部影响的情况下会产生尖峰,范围为5.39至9.81毫伏。相比之下,PS修饰的变体表现出正弦振荡。它们的行为可以用方程() = sin(2π) + 来描述,其中约为1.5毫伏,约为0.05赫兹。电化学阻抗谱显示了电荷传输方面的关键差异。PS修饰的系统具有更好的导电性:|| = 7.22 × 10Ω,而|| = 2.03 × 10Ω。这些系统可以在5毫伏阈值下执行布尔逻辑运算。它们表现出与时间相关的门行为,使其适用于非常规计算应用。用Fe(NO)掺杂会改变电响应。这是通过氧化还原过程发生的,其中Fe获得一个电子变成Fe。结果,存在更大的电位差和更复杂的定时行为。这些发现有助于我们更好地理解基于类蛋白的生物电。它们还展示了这些构建块如何用于生物分子计算系统。
R Soc Open Sci. 2023-10-11
Biosystems. 2024-3
Biosystems. 2023-5
ACS Omega. 2025-5-5
Biomimetics (Basel). 2024-6-23
PLoS One. 2023
ACS Appl Mater Interfaces. 2024-12-11
Bioengineering (Basel). 2024-6-6
J Nanobiotechnology. 2024-6-10
Biochem Biophys Res Commun. 2024-5-21
R Soc Open Sci. 2023-10-11
ACS Biomater Sci Eng. 2023-12-11
Life (Basel). 2023-6-26
Mater Today Bio. 2021-10-13