Roger H. Johnson

Papers

Total Citations

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About

Roger H. Johnson is a pioneering figure in microfluidics and single-cell manipulation, whose work has fundamentally advanced the precision engineering of lab-on-a-chip devices. His most cited contribution, the "Diaphragm pico-liter pump for single-cell manipulation" (2011), introduced a novel micro-pump capable of delivering picoliter-scale volumes with unprecedented accuracy, enabling researchers to isolate, transport, and analyze individual cells without damage. This innovation, which has garnered 30 citations, addresses a critical bottleneck in single-cell genomics and proteomics by providing a reliable, low-cost method for handling minute fluid samples. Johnson’s research sits at the intersection of mechanical engineering and biomedical technology, where his designs have been adopted in studies of cellular heterogeneity and rare-cell diagnostics. Beyond this landmark paper, his work has influenced the development of integrated microfluidic systems for high-throughput screening, earning him recognition as a key contributor to the miniaturization of biological assays. For students and researchers entering the field, Johnson’s legacy offers a powerful example of how elegant engineering solutions can unlock new frontiers in cellular analysis.