Tubular phononic crystal sensor platform for (bio)chemical liquid analysis

用于（生物）化学液体分析的管状声子晶体传感器平台

• 批准号: 406626998
• 负责人: Professor Dr. Ralf Lucklum
• 金额: --
• 依托单位: Institut des Nanosciences de Paris (INSP)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/406626998?language=en
• 关键词: Tubular; phononic; crystal; sensor; platform

The project aims at a new class of phononic crystals, Tubular Phononic Crystals (TPCs) and their application as Tubular Phononic Crystal Sensor, the Tubular Bell. Our vision is a fundamentally new sensor concept for in-line monitoring of liquids in cylindrical structures like pipes (chemistry) or vessels (medicine). The physical challenge is formulation and physical description of phononic crystals created by a radical change of lattice geometry from 2D planar or 3D Cartesian with translational symmetry to 3D cylindrical with both translational and rotational symmetries. The engineering challenge is the ultimate change from chemical sensors measuring at the interface to an analyte to a new sensor class determining volumetric properties of an analyte. This novel concept will be fully explored considering fundamental interactions of acoustic fields in liquids and elastic fields in solids. Acoustic waves will be tailored so that they perturb sub-volumes of liquids in pipes or vessels revealing their physical properties. The project will deliver a platform for determination of undiscovered information behind volumetric properties due to a fundamentally new access to underlying chemical or biomedical phenomena of liquids and mixtures.These objectives will be accomplished by means of four research lines:1. Development of Tubular Phononic Crystals, a class of periodically structured elastic cylinders for wave propagation along the revolution axis. TPCs will constitute a completely new family of devices with geometries not considered so far in literature2. Investigation of advanced artificial structures to localize acoustic energy in small resonant liquid regions. This part includes the interaction between the acoustic and elastic fields at both macroscopic and microscopic scales3. Evolution of the Tubular Bell as new class of acoustic sensor. The phononic resonators will be deeply analyzed, considering the transduction of properties of an analyte, namely sound velocities and mass density as well as viscosity and other dissipation values, into acoustic properties of the TPC, namely resonance frequency and bandwidth of selected modes4. Realization of TPC and Tubular Bell prototypes for experimental proof of theoretical investigations and as demonstrator of the new sensor conceptThe target frequency resolution is 10-5 f0, striving for a sound velocity resolution <0.05 m/s. The project requires interdisciplinary work between solid state physics, material science, microfabrication, and measurement science. Significant milestones for the project are:(i) Demonstration of phononic band gaps in liquid-filled tubular structures(ii) Acoustic wave excitation, propagation, and detection in tubular structures and the coupling to resonant modes must be explored and optimized(iii) The relation between acoustic values and material properties and composition of liquid mixtures must be established to transfer the physical results into a measurable sensor effect

该项目旨在研究一类新的声子晶体，管状声子晶体（TPC）及其作为管状声子晶体传感器的应用，管状钟。我们的愿景是一个全新的传感器概念，用于在线监测圆柱形结构中的液体，如管道（化学）或容器（医学）。物理上的挑战是制定和物理描述的声子晶体创建的晶格几何形状从二维平面或三维笛卡尔平移对称到三维圆柱平移和旋转对称的根本变化。工程上的挑战是从化学传感器在分析物的界面处测量到确定分析物的体积特性的新传感器类别的最终变化。考虑到液体中的声场和固体中的弹性场的基本相互作用，将充分探讨这一新概念。声波将被定制，使得它们扰动管道或容器中的液体的子体积，从而揭示它们的物理性质。该项目将提供一个平台，用于确定体积属性背后的未发现信息，这是由于对液体和混合物的潜在化学或生物医学现象的全新访问。这些目标将通过四个研究路线来实现：1.管状声子晶体的发展，一类周期性结构的弹性圆柱体的波传播沿着旋转轴。TPC将构成一个全新的器件系列，其几何形状在文献中尚未考虑2。在小的共振液体区域中定位声能的先进人工结构的研究。这一部分包括在宏观和微观尺度上声场和弹性场之间的相互作用3。管状钟作为新型声学传感器的发展。声子谐振器将被深入分析，考虑到分析物的属性，即声速和质量密度以及粘度和其他耗散值，转换为TPC的声学属性，即所选模式的谐振频率和带宽4。实现TPC和管状钟原型，用于理论研究的实验验证和新传感器概念的演示目标频率分辨率为10-5 f0，力争声速分辨率<0.05 m/s。该项目需要固体物理学，材料科学，微制造和测量科学之间的跨学科工作。该项目的重要里程碑是：（i）充液管状结构中的声子带隙的证明（ii）管状结构中的声波激发、传播和检测以及与共振模式的耦合必须得到探索和优化（iii）声学值与材料特性和液体混合物成分之间的关系必须建立，以便将物理结果转化为可测量的传感器效应