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Circulating tumor cells (CTCs) are a crucial biomarker for early cancer diagnosis and progress of cancer metastasis. However, the extremely rare CTCs with large amounts of background leukocytes seriously restricte the purity of enriched CTCs. Herein, genetically engineered cell membrane‐coated magnetic nanoparticles with following properties are constructed: I) The leukocyte membrane camouflaged nanoparticles,...
A micromachined reconfigurable metamaterial is presented, whose unit cell consists of a pair of asymmetric split‐ring resonators (ASRRs); one is fixed to the substrate while the other is patterned on a movable frame. The reconfigurable metamaterial and the supporting structures (e.g., microactuators, anchors, supporting frames, etc.) are fabricated on a silicon‐on‐insulator wafer using deep reactive‐ion...
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