GPER1 deficiency causes sex-specific dysregulation of hippocampal plasticity and cognitive function

A Koitm�e, Y Karsten, X Li, F Morellini…�- Journal of�…, 2023 - joe.bioscientifica.com
Estrogens regulate synaptic properties and influence hippocampus-related learning and
memory via estrogen receptors, which include the G-protein-coupled estrogen receptor 1 (…

Guided neuronal growth on arrays of biofunctionalized GaAs/InGaAs semiconductor microtubes

CS Bausch, A Koitm�e, E Stava, A Price…�- Applied Physics�…, 2013 - pubs.aip.org
We demonstrate embedded growth of cortical mouse neurons in dense arrays of semiconductor
microtubes. The microtubes, fabricated from a strained GaAs/InGaAs heterostructure, …

Designer neural networks with embedded semiconductor microtube arrays

A Koitmäe, M Müller, CS Bausch, J Harberts…�- Langmuir, 2018 - ACS Publications
Here we present a designer’s approach to building cellular neuronal networks based on a
biocompatible negative photoresist with embedded coaxial feedthroughs made of …

[PDF][PDF] Approaching integrated hybrid neural circuits: Axon guiding on optically active semiconductor microtube arrays

A Koitm�e, J Harberts, G Loers…�- Adv. Mater�…, 2016 - ediss.sub.uni-hamburg.de
The fabrication of semiconductor microtubes is based on the growth of lattice mismatched
layers.[8, 9] We employ molecular beam epitaxy (MBE) to define a sequence of a sacrificial …

[HTML][HTML] Culturing and patch clamping of Jurkat T cells and neurons on Al 2 O 3 coated nanowire arrays of altered morphology

J Harberts, R Zierold, C Fendler, A Koitm�e, P Bayat…�- RSC�…, 2019 - pubs.rsc.org
Nanowire substrates play an increasingly important role for cell cultures as an approach for
hybrid bio-semiconductor junctions. We investigate Jurkat T cells and neurons from mice …

Enhanced transmission in rolled-up hyperlenses utilizing Fabry-P�rot resonances

J Kerbst, S Schwaiger, A Rottler, A Koitm�e…�- Applied Physics�…, 2011 - pubs.aip.org
We experimentally demonstrate that the transmission through rolled-up metal/semiconductor
hyperlenses can be enhanced at desired frequencies utilizing Fabry-P�rot resonances. By …

Gain in three-dimensional metamaterials utilizing semiconductor quantum structures

…, J Kerbst, A Rottler, R Costa, A Koitm�e…�- Physical Review B�…, 2011 - APS
We demonstrate gain in a three-dimensional metal/semiconductor metamaterial by the
integration of optically active semiconductor quantum structures. The rolling-up of a metallic …

Transmission enhancement in three-dimensional rolled-up plasmonic metamaterials containing optically active quantum wells

A Rottler, S Schwaiger, A Koitm�e, D Heitmann…�- JOSA B, 2011 - opg.optica.org
We investigate three-dimensional rolled-up metamaterials containing optically active quantum
wells and metal gratings supporting surface plasmon polariton (SPP) resonances. Finite-…

Synthetic neuronal circuits: Optically active semiconductor microtubes as remotely accessible sensors for action potentials

A Koitm�e, J Harberts, G Loers, M M�ller…�- 2015 7th�…, 2015 - ieeexplore.ieee.org
In this work an advanced method of optical readout of action-potentials using optically active
semiconductor microtubes (MTs) as resonators and potential tool for optogenetic circuits …

Direct Transfer of GaAs Microtube Arrays onto Transparent Substrates for Imaging Neuron Outgrowth

A Koitm�e, CS Bausch, E Stava…�- Soft Nanoscience�…, 2013 - publish.sub7journal.com
We introduce a direct method for transferring arrays of GaAs microtubes from an opaque
substrate to a transparent glass substrate in a controlled manner. This enables us to build a …