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Simultaneous broadband and high efficiency merits of designer metasurfaces are currently attracting widespread attention in the field of nanophotonics. However, contemporary metasurfaces rarely achieve both advantages simultaneously. For the category of transmissive metadevices, plasmonic or conventional dielectric metasurfaces are viable for either broadband operation with relatively low efficiency...
Silicon photonics has demonstrated great potential in ultrasensitive biochemical sensing. However, it is challenging for such sensors to detect small ions which are also of great importance in many biochemical processes. A silicon photonic ion sensor enabled by an ionic dopant–driven plasmonic material is introduced here. The sensor consists of a microring resonator (MRR) coupled with a 2D restacked...
Dynamic monitoring and analysis of protein secretion from single cells remain challenges. In article number 1800698, Hatice Altug and co‐workers present an optofluidic nanoplasmonic biosensor for real‐time monitoring of cytokine secretion. The label‐free system enables the detection and quantification of protein secretions from single cells while maintaining controlled conditions for cell activity...
Single‐cell analysis of cytokine secretion is essential to understand the heterogeneity of cellular functionalities and develop novel therapies for multiple diseases. Unraveling the dynamic secretion process at single‐cell resolution reveals the real‐time functional status of individual cells. Fluorescent and colorimetric‐based methodologies require tedious molecular labeling that brings inevitable...
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