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Optical interrogation of cellular electrical activity has proven itself essential for understanding cellular function and communication in complex networks. Voltage‐sensitive dyes are important tools for assessing excitability but these highly lipophilic sensors may affect cellular function. Label‐free techniques offer a major advantage as they eliminate the need for these external probes. In this...
This paper reports a multifunctional platform based on a nanocomposite hydrogel combining poly(ethylene glycol), with rhodamine B‐containing silica nanoparticles (RhB@SiO2), as temperature sensors, and gold nanorods (AuNRs) as plasmonic heaters. This composite material acts as a light‐addressable cellular matrix able to induce 3D temperature gradients locally and dynamically using the localized surface...
High performance organic electro‐optic (OEO) materials enable ultrahigh bandwidth, small footprint, and extremely low drive voltage in silicon‐organic hybrid and plasmonic‐organic hybrid photonic devices. However, practical OEO materials under device‐relevant conditions are generally limited to performance of ≈300 pm V−1 (10× the EO response of lithium niobate). By means of theory‐guided design, a...
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