Publications by authors named "Putian He"
Enhanced electrokinetic phenomena, manifested through the observation of a large streaming potential (), were obtained in microchannels with single-layer graphene (SLG)-coated and few-layer graphene (FLG)-coated surfaces. In comparison to silicon microchannels, the obtained for a given pressure difference along the channel (Δ) was higher by 75% for the graphene-based channels, with larger values in the SLG case. Computational modeling was used to correlate the surface charge density, tuned through plasma processing, and related zeta potential to measured .
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- Traditional sandwich immunosensors use antibody layers to detect target proteins, but their construction can be complicated and prone to interference from complex samples.
- The new bioelectronic affinity sensors utilize natural cell membranes from human macrophages and red blood cells to simplify the process into a single step, enhancing protein detection while minimizing unwanted binding.
- This innovative design effectively detected the cytokine TNF-α at a sensitivity of 150 pM, showcasing its potential for a wide range of biosensing applications.