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Related Concept Videos

Electrical Synapses01:28

Electrical Synapses

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Electrical synapses found in all nervous systems play important and unique roles. In these synapses, the presynaptic and postsynaptic membranes are very close together (3.5 nm) and are actually physically connected by channel proteins forming gap junctions.
Gap junctions allow the current to pass directly from one cell to the next. In contrast, in the chemical synapse, the neurotransmitters carry the information through the synaptic cleft from one neuron to the next. They consist of two...
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Overview of Synapses01:25

Overview of Synapses

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A synapse is a specialized structure where two neurons connect, allowing them to pass an electrical or chemical signal to another neuron. It is the point of communication between neurons. The term "synapse" is derived from the Greek word "synapsis," which means "conjunction." The entire process of neural communication revolves around the synapse. When activated, a neuron releases chemicals known as neurotransmitters into the synapse. These neurotransmitters cross the synapse and bind to...
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Chemical Synapses01:26

Chemical Synapses

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Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
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Chemical Synapses01:26

Chemical Synapses

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Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
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Integration of Synaptic Events01:28

Integration of Synaptic Events

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Synaptic integration mainly includes the summation of graded potentials. Graded potentials, regardless of their type, cause subtle alterations in membrane voltage, resulting in either depolarization or hyperpolarization. These incremental changes, when combined or summed, can propel the neuron toward its threshold. Consider, for example, a membrane experiencing a +15 mV shift, causing it to depolarize from -70 mV to -55 mV. In this scenario, graded potentials govern the membrane's ability to...
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Neural Circuits01:25

Neural Circuits

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Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
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Design, Surface Treatment, Cellular Plating, and Culturing of Modular Neuronal Networks Composed of Functionally Inter-connected Circuits
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Janus Synapses as Modular Neurointerfaces.

Wonkyung Cho1, Minji Jung1, Taek Dong Chung1,2

  • 1Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.

ACS Applied Materials & Interfaces
|March 27, 2026
PubMed
Summary
This summary is machine-generated.

Engineered electrodes can mimic natural chemical synapses, enabling seamless neuron-device communication by leveraging the nervous system's biological logic for advanced neural interfaces.

Keywords:
biohybrid neural interfacebrain−machine interfacehemisynapseneuron−electrode interfaceneurotransmitter-based communicationsynapse-inspired neurointerfacesynaptic cell adhesion molecule

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Area of Science:

  • Neuroscience
  • Biotechnology
  • Materials Science

Background:

  • The nervous system processes information via chemical signals translated into electrical and biochemical responses.
  • Chemical synapses are crucial for precise and rapid neural communication, underpinning complex information processing.
  • Understanding native neural signaling is key to developing effective neurointerfaces.

Purpose of the Study:

  • To explore synaptic structures as neurointerface modules.
  • To investigate engineering electrodes as complementary synaptic terminals for neuron-device communication.
  • To examine the use of synaptic cell adhesion molecules for redefining electrode surfaces.

Main Methods:

  • Analysis of native synaptic signaling principles.
  • Conceptualizing electrodes as functional synaptic counterparts.
  • Investigating the role of synaptic cell adhesion molecules as synaptogenic cues.

Main Results:

  • Electrodes can be engineered to emulate synaptic functions.
  • Neuron-device communication can directly utilize the chemical, electrical, and biological logic of neural systems.
  • Synaptic cell adhesion molecules offer a pathway to create functional synaptic interfaces.

Conclusions:

  • Engineered electrodes can serve as effective neurointerface modules by mimicking synaptic structures.
  • This approach enables direct communication between neurons and devices, respecting neural system logic.
  • Harnessing synaptogenic cues presents a novel strategy for advanced neural interface design.