COVID-19 DNA amplification E. coli L-DNA Micro-Electrode Arrays PCR RBC SARS-CoV-2 additive manufacturing artificial intelligence automation bacterial population dynamics biochemical assay biochemical stimuli biocompatibility biophysical stimuli cancer-on-chip capillary cell trap colorectal cancer computational fluid dynamics computational simulations cortical neurons diagnosis drug discovery drug efficacy electrical stimulation embedded resin engineered neuronal networks evaporation