Biomicrofluidics is an online journal published by AIP PUBLISHING, aimed at the rapid dissemination of research related to the fundamental physicochemical mechanisms of microfluidic and nanofluidic phenomena. The journal also publishes unique microfluidic and nanofluidic technologies for applications in diagnostics, medicine, biology, pharmaceuticals, environmental science, and chemistry. It offers rapid publication, multimedia features, and global circulation among academic, national, and industrial laboratories. Biomicrofluidics primarily focuses on high-quality original research articles and organizes dedicated sections to help explain and define the specific challenges unique to the interdisciplinary field of biomicrofluidics. Research topics include microfluidic and nanofluidic-driven liquid biopsies (such as MICRORNA analysis, circulating tumor cell isolation, exosome separation, and circulating tumor DNA quantification), cell sorting, manipulation, and transfection (such as DI/electrophoresis, magnetic beads, optical traps, and electroporation), molecular separation and concentration (such as isoelectric focusing, concentration polarization, DI/electrophoresis, magnetic beads, and nanoparticles), cell culture and analysis (such as single-cell assays, stimulation responses, and stem cell transfection), genomics and proteomics (such as rapid gene sequencing, DNA/protein/carbohydrate arrays), biosensors (such as immunoassays, nucleic acid fluorescence assays, colorimetric assays, enzyme amplification, plasmonic and Raman nano-reporters, molecular B EACON, FRET, aptamers, nanopores, and optical fibers), and biophysical transport and characterization (such as DNA, single proteins, ion channels and membrane dynamics, cell motility and communication mechanisms, electrophysiology, and patch clamping).