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Related Concept Videos

Neuronal Communication01:28

Neuronal Communication

Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...
Network Covalent Solids02:18

Network Covalent Solids

Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
Neurons as Communicators of the Brain01:22

Neurons as Communicators of the Brain

Neurons, the fundamental units of the brain and nervous system, function as the primary transmitters of information throughout the body. Their ability to communicate through electrical and chemical signals is vital for every bodily function, from regulating the heartbeat to processing complex thoughts. Each neuron has three main components: the cell body (soma), dendrites, and an axon, each specialized to facilitate swift and efficient neural communication.
Cell Body
The cell body, also known...
Neuron Structure01:30

Neuron Structure

Neurons are the main type of cell in the nervous system that generate and transmit electrochemical signals. They primarily communicate with each other using neurotransmitters at specific junctions called synapses. Neurons come in many shapes that often relate to their function, but most share three main structures: an axon and dendrites that extend out from a cell body.
Structure and Function of Neurons
The neuronal cell body—the soma— houses the nucleus and organelles vital to cellular...
Neurons: The Cell Body and the Dendrites01:23

Neurons: The Cell Body and the Dendrites

A typical nerve cell comprises three main components: the cell body, dendrites, and the axon. The cell body, also known as the soma or perikaryon, serves as the central biosynthetic hub housing a nucleus surrounded by cytoplasm containing organelles commonly found in most cells. Notably, Nissl bodies, clusters of the rough endoplasmic reticulum and free ribosomes responsible for protein synthesis, are distinctive features of the neuronal cell body. As neurons age, aggregates of a brown pigment...

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Updated: Jun 19, 2026

Automatic Identification of Dendritic Branches and their Orientation
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Published on: September 17, 2021

On diamond surface properties and interactions with neurons.

P Ariano1, O Budnyk, S Dalmazzo

  • 1Nanostructured Surface and Interface Excellence Centre (NIS), University of Torino, Torino, Italy.

The European Physical Journal. E, Soft Matter
|October 13, 2009
PubMed
Summary
This summary is machine-generated.

Diamond surface properties significantly impact neuronal cell survival for biosensor development. Nanocrystalline diamond supports cell growth better than homoepitaxial diamond, regardless of surface termination.

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Area of Science:

  • Materials Science
  • Biotechnology
  • Neuroscience

Background:

  • Diamond's unique properties make it a promising substrate for biomedical applications, including cell-based biosensors.
  • Neuronal cell survival and viability are critical for the functionality of biosensors.
  • Surface morphology and atomic termination are key factors influencing cell-substrate interactions.

Purpose of the Study:

  • To investigate the role of diamond surface morphology and atomic termination on neuronal cell survival and viability.
  • To evaluate diamond as a substrate for developing neuronal cell-based biosensors.

Main Methods:

  • Cultured GT1-7 neuronal cells on various diamond substrates: CVD homoepitaxial diamond films and nanocrystalline diamond layers on quartz.
  • Modified diamond surface terminations using atomic hydrogen and UV irradiation.
  • Assessed cell density and viability after 48 hours without exogenous adhesion molecules.

Main Results:

  • Nanocrystalline diamond substrates supported neuronal cell density at approximately 55% of control levels, irrespective of surface termination.
  • Homoepitaxial diamond substrates showed significantly lower cell growth (around 30% of control), with performance dependent on surface termination.
  • Surface topography and chemistry directly correlate with neuronal cell growth and viability on diamond.

Conclusions:

  • Nanocrystalline diamond offers a more robust platform for neuronal cell attachment and growth compared to homoepitaxial diamond for biosensor applications.
  • Surface termination plays a critical role in neuronal cell viability on homoepitaxial diamond films.
  • Diamond surface engineering is crucial for optimizing neuronal cell-based biosensor performance.