Quantitative Neurobiology

Our lab investigates development of the central nervous system. We integrate structural biology, biophysics, and cell biology to resolve the molecular mechanisms underlying synapse assembly.

Brain development

Each of the hundred billion neurons within the human brain builds connections, known as synapses, with more than thousand other neurons. But rather than this resulting in a chaotic system, the brain is wired in a specific and highly organised manner that we don’t yet fully understand.

Within the Quantitative Neurobiology Lab, we integrate structural biology, biophysics, and cell biology to resolve the molecular mechanisms and cellular principles underlying synapse assembly and neuronal network formation. We aim to increase fundamental knowledge on how we learn and forget. Ultimately, this may enable the development of medications that restore major brain functions in patients suffering from neurodegenerative disorders, including Alzheimer or Parkinson’s disease, or from developmental disorders such as autism.

A Purkinje neuron in the human cerebellum hand-drawn by Ramón y Cajal in 1899

Our key questions:

  • How is cell-cell communication organised in the central nervous system?
  • What are the underlying molecular mechanisms of neuronal recognition?
  • How does neuronal activity affect the strength of synaptic connections?

'Cytoskeleton' by Kavli Artist in residence John Walter

Technology and biology

At present, many individual proteins important to the formation and function of synapses have been identified and their three-dimensional structure determined. It is, however, unclear how these individual proteins team up into macromolecular machines to perform their essential tasks. Unravelling these molecular and cellular dynamics requires the newest microscopes and advanced materials as well as the decades of biophysics experience available at TU Delft. We therefore maintain close collaborations with sections such as Imaging Physics, Materials Science, and Micro-Electronics. We also enjoy strong ties with the Department of Neuroscience of Erasmus MC in Rotterdam.

Bridging scales: from nano- to network neuroscience

In our laboratory, we perform experiments on the single molecule level and in living cells; varying from electron microscopy of individual synaptic molecules to high-resolution fluorescence imaging of the molecular processes in single neurons to automated microscopy for studying network formation of thousands of neurons.

Read more about our work here.

Current projects

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