A5010641932- Neuroscience and Neural Engineering
- Electrochemical sensors and biosensors
- Carbon Nanotubes in Composites
- Research in Social Sciences
- Conducting polymers and applications
- Electrochemical Analysis and Applications
- Diamond and Carbon-based Materials Research
- Photoreceptor and optogenetics research
- Catalysis and Oxidation Reactions
- Molecular Junctions and Nanostructures
- Catalytic Processes in Materials Science
- Analytical chemistry methods development
- Gas Sensing Nanomaterials and Sensors
- 3D Printing in Biomedical Research
- Advanced Memory and Neural Computing
- Extraction and Separation Processes
- Medicinal Plants and Neuroprotection
- Force Microscopy Techniques and Applications
- Graphene research and applications
- Nanomaterials and Printing Technologies
- Dielectric materials and actuators
- Neuroscience and Neuropharmacology Research
- Polymer Surface Interaction Studies
- Graphene and Nanomaterials Applications
- Advanced Sensor and Energy Harvesting Materials
Aalto University
2015-2021
Department of Chemistry and Material Sciences
2015-2021
Tieto (Finland)
2018-2021
Espoo Music Institute
2020
In the current study, platinum-present as a negligible component (below 1 ppb, detection limit of HR-ICP-MS at dilutions used) in real industrial hydrometallurgical process solutions-was recovered by an electrodeposition-redox replacement (EDRR) method on pyrolyzed carbon (PyC) electrode, not earlier applied to metal recovery. The recovery parameters EDRR were initially investigated using synthetic nickel electrolyte solution ([Ni] = 60 g/L, [Ag] 10 ppm, [Pt] 20 [H2SO4] g/L), and results...
Here we investigated the electrochemical properties and dopamine (DA) detection capability of SU-8 photoresist based pyrolytic carbon (PyC) as well its biocompatibility with neural cells. This approach is compatible microfabrication techniques which crucial for device development. X-ray photoelectron spectroscopy shows that PyC consists 98.5% carbon, while oxygen plasma treatment (PyC-O2) increases amount up to 27.1%. showed nearly reversible (ΔEp 63 mV) electron transfer kinetics towards...
Kainate type of glutamate receptors (KARs) are highly expressed during early brain development and may influence refinement the circuitry via modulating synaptic transmission plasticity. KARs also localized to axons, however, their exact roles in regulating presynaptic processes remain controversial. Here, we have used a microfluidic chamber system allowing specific manipulation neurons study functions function vitro. Silencing expression endogenous resulted lower density synaptophysin...
Biofouling affects the redox kinetics of outer and inner sphere probes on carbon surfaces drastically differently.
Flexible and conductive silver electrodes were fabricated by inkjet printing on several different compositions of thiol-ene polymers. Conductive with resistivity down to 30 μΩcm good adhesion the obtained optimizing parameters. The maximum resolution was 100 μm lines 80 gaps between lines. Printing top cross-linked off-stoichiometric polymer tested for ranging from % thiol excess 5 allyl ('ene') excess. roughness off surfaces shown greatly improve quality printed electodes: consistently high...
Pattern formation of pyrolyzed carbon (PyC) and tetrahedral amorphous (ta-C) thin films were investigated at micro- nanoscale. Micro- nanopillars fabricated from both materials, their biocompatibility was studied with cell viability tests. Carbon materials are known to be very challenging pattern. Here we demonstrate two approaches create biocompatible features. The microtopographies 2 μ m or 20 pillars (1:1 aspect ratio) three different pillar layouts (square-grid, hexa-grid, random-grid...
Different types of carbon materials are biocompatible with neural cells and can promote maturation. The mechanism this effect is not clear. Here we have tested the capacity a material composed amorphous sp3 backbone, embedded percolating network sp2 domains to sustain neuronal cultures. We found that cortical neurons survive develop faster on novel material. After 3 days in culture, there precocious increase frequency activity expression maturation marker KCC2 films as compared commonly used...
Event Abstract Back to Carbon 3D microelectrode arrays for neuron and brain slice measurements Joonas J. Heikkinen1*, Ville Rontu1, Emilia Peltola2, Tiina Kaarela3, 4, Niklas Wester5, Jari Koskinen5, Tomi Taira3, Sari E. Lauri3, 6, T. Laurila2, Jokinen1 Sami Franssila1 1 Aalto University, Department of Chemistry Materials Science, Finland 2 Electrical Engineering Automation, 3 Neuroscience Center, University Helsinki, 4 Veterinary Biosciences, 5 6 The aim the research is study carbon...