Abstract:
The application relates to a chemical sensor device comprising a substrate (1), a sensor medium (3) formed on the substrate, the sensor medium comprising one-dimensional nanoparticles, wherein the one-dimensional nanoparticles essentially consist of a semiconducting AxBy compound, e.g. V2O5 and detection means (2) for detecting a change of a physical property of the sensor medium e.g. conductivity. The porosity of the sensor medium supports a fast access of the analyte to the sensing material and therefore a fast response of the sensor. The selectivity and sensitivity of the sensor can be tailored by doping the one-dimensional nanoscale material with different dopants or by varying the dopant concentration. Sensitivity of the sensor device to an analyte, preferably an amine, can be increased by increasing relative humidity of the sample to at least 5%.
Abstract translation:本申请涉及一种化学传感器装置,其包括基底(1),形成在基底上的传感器介质(3),所述传感器介质包括一维纳米颗粒,其中所述一维纳米颗粒基本上由半导体AxBy化合物组成。 V 2 O 5和用于检测传感器介质的物理特性变化的检测装置(2),例如 电导率。 传感器介质的孔隙度支持分析物快速进入感测材料,因此支持传感器的快速响应。 可以通过用不同掺杂剂掺杂一维纳米级材料或通过改变掺杂剂浓度来调整传感器的选择性和灵敏度。 可以通过将样品的相对湿度增加至至少5%来增加传感器装置对分析物,优选胺的敏感性。
Abstract:
The application relates to a chemical sensor device comprising a substrate (1), a sensor medium (3) formed on the substrate, the sensor medium comprising one-dimensional nanoparticles, wherein the one-dimensional nanoparticles essentially consist of a semiconducting AxBy compound, e.g. V2O5 and detection means (2) for detecting a change of a physical property of the sensor medium e.g. conductivity. The porosity of the sensor medium supports a fast access of the analyte to the sensing material and therefore a fast response of the sensor. The selectivity and sensitivity of the sensor can be tailored by doping the one-dimensional nanoscale material with different dopants or by varying the dopant concentration. Sensitivity of the sensor device to an analyte, preferably an amine, can be increased by increasing relative humidity of the sample to at least 5%.
Abstract:
The present invention relates to a chemical sensor arrangement having an analyte sensitive indicator wherein the analyte sensitive indicator has at least one nanoparticle. The invention further relates to a method for providing nanoparticles of defined and different sizes, especially for a chemical sensor arrangement, wherein a nanoparticle solution, having nanoparticles of a broad size distribution, is applied to chromatography beads, whereby the nanoparticles are adsorbed onto said beads and classified by size, and beads of a specific layer, having nanoparticles of essentially the same size, are separated from the beads within other layers and are held in suspension.
Abstract:
The present invention relates to a nanoparticle/nanofiber based chemical sensor arrangement and arrays of such arrangements, to a method of fabrication thereof and to uses thereof, and furthermore relates to a method of detecting an analyte. In particular, the present invention relates to a chemical sensor arrangement having an enhanced selectivity or sensitivity, and it relates to a method of detecting an analyte at enhanced selectivity or sensitivity.
Abstract:
The present invention relates to a method of altering the sensitivity and/or selectivity of a chemiresistor sensor, to a sensor and a sensor array produced by such method.
Abstract:
The present invention refers to a method of producing a ferroelectric memory which method comprises: a) providing ferroelectric particles, b) providing a substrate, c) orientating at least a subset of said ferroelectric particles such that there is an axis of said particles along which axis a dipole moment may be directed in the ferroelectric state, said axis having an orientation the average of which is in at least one predetermined direction with regard to a surface of said substrate, d) allowing said ferroelectric particles to attach to said substrate, and to a method of storing information on a substrate, and to a memory device.