用电驱动的散热水凝网络揭示了不平衡操作的暂时刚性特性
Roberto Baretta1, Marco Frasconi1
1Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy.
Journal of the American Chemical Society
|March 5, 2024
概括
研究人员开发了一种电动水凝系统, 这一突破为先进的生物医学应用提供了精确的,依赖时间的材料功能和按需的药物输送.
科学领域:
- 材料科学
- 生物医学工程
- 软物质物理学
背景情况:
- 生物系统使用消散过程来控制空间时间.
- 在软材料中实现可调节的,短暂的机械性能仍然是一个挑战.
- 现有的方法缺乏对材料刚性的精确时间控制.
研究的目的:
- 设计具有可调节的,依赖时间的机械性能的水凝膜.
- 为了证明电气控制的凝硬度调节.
- 能够根据需要,控制剂量释放治疗有效载荷.
主要方法:
- 开发一个表面封闭的水凝膜平台.
- 使用电化学氧化介质和降解剂进行网络控制.
- 应用电力来驱动水凝中的消散过程.
主要成果:
- 已经成功编程了可调节的水凝膜,
- 经过电气控制的过渡性硬化和软化.
- 从电极阵列中实现对模型蛋白质有效载荷的按需,剂量控制的释放.
结论:
- 电驱动的液凝刚性的短暂调节是可行的.
- 这种消散系统提供了高度的模块化和精确的时空控制.
- 这代表了生物医学应用中的消散材料的重大进步.
相关概念视频
DC Battery
1.7K
A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts to flow if an electric field is created inside an isolated conductor that is not part of a full circuit. The conductor quickly develops a net positive charge at one end and a net negative charge at the other. These charges generate an electric field opposite the direction of the applied electric field, which reduces the current. Eventually,...
1.7K
Electrochemical Systems
179
Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution,...
179
The Power Flow Problem and Solution
1.2K
Power flow problem analysis is fundamental for determining real and reactive power flows in network components, such as transmission lines, transformers, and loads. The power system's single-line diagram provides data on the bus, transmission line, and transformer. Each bus k in the system is characterized by four key variables: voltage magnitude Vk, phase angle δk, real power Pk, and reactive power Qk. Two of these four variables are inputs, while the power...
1.2K
Multimachine Stability
698
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
698
Energy Line and Hydraulic Gradient Line
2.9K
Based on Bernoulli's equation, the energy line (EL) and hydraulic grade line (HGL) provide graphical representations of energy distribution in a fluid flow system. For steady, incompressible, inviscid flows, Bernoulli's equation is expressed as:
2.9K
Net Change Theorem
220
The Net Change Theorem is a fundamental principle in calculus that establishes a direct relationship between a function’s rate of change and its accumulated change over an interval. Mathematically, it states that the definite integral of a function's derivative over a given interval [a,b] yields the net change in the original function:This theorem has significant applications in various real-world scenarios, including physics, economics, and engineering. A particularly useful application...
220


