1. Hippocampal Neurons’ Alignment on Quartz Grooves and Parylene Cues on Quartz Substrate
- Author
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Vratislav Cmiel, Yi Yang, Jaromir Hubalek, Jan Slavík, and Tian-Ling Ren
- Subjects
inorganic chemicals ,010407 polymers ,Materials science ,hippocampal neurons ,neurons ,Hippocampal formation ,lcsh:Technology ,complex mixtures ,01 natural sciences ,Quartz substrate ,lcsh:Chemistry ,03 medical and health sciences ,chemistry.chemical_compound ,Parylene ,General Materials Science ,lcsh:QH301-705.5 ,Instrumentation ,Quartz ,030304 developmental biology ,Fluid Flow and Transfer Processes ,0303 health sciences ,lcsh:T ,business.industry ,Process Chemistry and Technology ,technology, industry, and agriculture ,General Engineering ,neurons alighment ,respiratory system ,Cell patterning ,cell alignment ,lcsh:QC1-999 ,respiratory tract diseases ,0104 chemical sciences ,Computer Science Applications ,cell patterning ,parylene cues ,lcsh:Biology (General) ,lcsh:QD1-999 ,nervous system ,chemistry ,lcsh:TA1-2040 ,neurons analysis ,quartz grooves ,Optoelectronics ,lcsh:Engineering (General). Civil engineering (General) ,business ,lcsh:Physics - Abstract
Alignment and patterning of neurons have great importance in some research fields, especially for regenerative medicine and for the formation of artificial neural networks. Alignment of neurons on quartz grooves and parylene cues on quartz substrate was evaluated in this work. The neurons&rsquo, alignment on quartz grooves is considered to be topographical alignment, while the neurons&rsquo, alignment on parylene cues on quartz substrate is considered to be chemical alignment. Both quartz grooves&rsquo, and parylene cues&rsquo, widths were fabricated in a range from 2 µ, m to 8 µ, m, quartz grooves&rsquo, heights were in a range from 0.25 µ, m to 4 µ, m, while parylene cues&rsquo, heights were only 0.25 µ, m. Neurons were dissociated hippocampal neurons from rat E18. Neurons were cultivated on test substrates for 7 days before alignment evaluation. As expected, neurons aligned according to the direction of grooves and cues, however, transversal growth direction was also observed with much smaller tendency. Chemical alignment was found to be more effective than topographical alignment. If parylene cues are thin and distanced enough, then neurons have a tendency to follow the direction of individual parylene cues, however, neurons on quartz grooves have a tendency just to follow a preferable direction than individual quartz grooves.
- Published
- 2020
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