Influence of a bias voltage on surface-driven orientational transitions for liquid crystal-based chemical and biological sensors

作者: Yang Zou , Jun Namkung , Yongbin Lin , Dan Ke , Robert G Lindquist

DOI: 10.1088/0022-3727/44/13/135103

关键词: Analytical chemistrySignal strengthBiasingLiquid crystalCrystal chemistryElectric fieldChemical physicsAnchoringMoleculeChemistry

摘要: The influence of a bias voltage on the surface-driven orientational transitions liquid crystals (LCs) resulting from weakening anchoring and transition was analysed theoretically experimentally. continuum theory nematic LCs used to model LC deformation under different energies. A microelectroplated interdigitated Au structure in LC-based chemical biological sensors. With suitable electric field, processes energy uniform due targeted molecules binding functionalized surface were observed optically. These results can be improve sensitivity, response speed signal strength

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