液相化学发光分析法中试剂的固定方法

从化学发光分析的基本原理出发，以国内外化学发光试剂的固定化文献为依据，介绍了在直接和间接化学发光体系中的固定化对象，以及近年来液相化学发光分析中固定发光试剂所使用的载体。     

气湿敏产业化要素分析

以国家“八五”科技攻关“气湿敏传感技术研究开发”课题实施为例，论述气湿敏传感器产业现状和气湿敏传感器技术研究开发课题的攻关目的，分析了气湿敏传感器产业化要素，产业化的关键是管理、技术、经济三要素的协调。只有以气湿敏传感器产业为支撑，才能发展气湿敏传感器技术，形成资金、技术、产品和需求的良性循环．     

Animating Architecture: Coupling High-Definition Sensing with High-Definition Actuation

Ruairi Glynn , lecturer on interactive architecture at the Bartlett School ofArchitecture, University College London (UCL), puts the pressing question: ‘What does a world of hyper-connective, high-definition sensing offer architectural design?’ Despite the pervasiveness of ubiquitous computing – the Internet of Things (IoT) – and students' ability to speculate, build and test responsive lifesize installations, could practice itself be in danger of getting left behind?     

Interference‐aware convergecast scheduling in wireless sensor/actuator networks for active airflow control applications

Emerging wireless sensor/actuator network (WSAN) technology has the potential to enable semi‐autonomous airflow control to improve the aerodynamic performance of aircraft. In this paper, a WSAN comprising of multiple linear sensor clusters terminated by actuators is proposed for active airflow control with the objective of minimizing convergecast latency. Here, the convergecast delay is defined as the time required from the beginning of a sampling period to all all sensor's data of this sampling period is received by the actuator. The objective is achieved by minimizing the separation distance of concurrent data transmission so that the number of nodes sending data in the same time slot is maximized. The problem turns into a scheduling problem with a proper selection of interference separation. However, most existing work on the scheduling in linear networks use the minimum separation of two hops to avoid collisions. This paper examines the relationship between the hop separation, signal‐to‐noise ratio, and the latency to make a selection of interference separation. A new interference aware hybrid line scheduling (HLS) algorithm is proposed and its energy consumption is analyzed. Compared with other line scheduling policies, the analysis and simulation results show that, at moderately high node densities, the proposed HLS with carefully selected hop separation is able to reduce both the delay by up to 15% and the energy consumption somehow. Copyright © 2012 John Wiley & Sons, Ltd.     

基于多巴胺及其衍生物的传感器在食品快速检测中的研究进展

食品安全问题关系国计民生,快速检测技术对实现食品安全战略具有重要意义。聚多巴胺及其复合材料修饰的传感器在食品快速检测中表现出良好的稳定性,且具有检测限低、灵敏度高的优势;此外,聚多巴胺及其修饰复合材料制备过程简单、绿色环保,基于这些优点,聚多巴胺及其复合材料在食品安全评价、环境监测、生物分析等领域的运用备受关注。本文综述了基于多巴胺及其衍生物的光学、电化学传感器在食品检测方面的一些设计和应用,以体现其明显的应用优越性。最后,对多巴胺及其衍生物在食品快速检测领域面临的挑战和未来的发展前景进行探讨,以期对多巴胺在食品快速检测新技术方面的推广应用提供参考。     

Molecularly imprinted polymers: present and future prospective

Molecular Imprinting Technology (MIT) is a technique to design artificial receptors with a predetermined selectivity and specificity for a given analyte, which can be used as ideal materials in various application fields. Molecularly Imprinted Polymers (MIPs), the polymeric matrices obtained using the imprinting technology, are robust molecular recognition elements able to mimic natural recognition entities, such as antibodies and biological receptors, useful to separate and analyze complicated samples such as biological fluids and environmental samples. The scope of this review is to provide a general overview on MIPs field discussing first general aspects in MIP preparation and then dealing with various application aspects. This review aims to outline the molecularly imprinted process and present a summary of principal application fields of molecularly imprinted polymers, focusing on chemical sensing, separation science, drug delivery and catalysis. Some significant aspects about preparation and application of the molecular imprinting polymers with examples taken from the recent literature will be discussed. Theoretical and experimental parameters for MIPs design in terms of the interaction between template and polymer functionalities will be considered and synthesis methods for the improvement of MIP recognition properties will also be presented.     

基于电化学检测原理的毒性气体探测器设计

一些工业生产过程中产生的有毒气体会对生产安全、环境保护造成威胁。常见毒性气体的检测一般采用电化学传感器。本文针对电化学传感器的使用对硬件电路要求高的问题,设计了一款使用STM32103系列微控制器的高性能毒性气体探测器。     

2010: A Small Space Odyssey with Luminescent Molecules

The road to molecular logic and computation in Belfast, Northern Ireland started with chemical sensors in Colombo, Sri Lanka. This journey is mapped out with reference to design principles, such as those for luminescent PET (photoinduced electron transfer) sensing. Applications such as those for blood electrolyte diagnostics, “lab-on-a-molecule” systems, and molecular computational identification (MCID) are also met along the way.     

Sensing behaviors of polymer/carbon nanotubes composites prepared in reversed microemulsion polymerization

Polystyrene/carbon nanotubes composites were readily prepared by reversed microemulsion polymerization. Compared with the composites prepared by solution mixing, the uniform dispersion of carbon nanotubes in polymer matrix could be obtained more easily and the thermal and electrical properties of the as‐prepared composites were also enhanced. The as‐prepared composites were deposited onto a microelectrode array to fabricate a vapor sensor. The response for different organic vapors was evaluated by monitoring the change in the resistance of the composites upon exposure to various gases. The change in resistance was of the order of about 10³ for the composites prepared by reversed microemulsion polymerization. The chemical sensors based on the composites prepared by reversed microemulsion polymerization presented excellent reproducibility and reversibility in response. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011     

全光纤保偏声光调制器的研究与应用

全光纤保偏声光调制器(PAOM)是光传感和光通信系统的重要组成部分.理论分析了全光纤保偏声光调制器两正交偏振轴的光能量转换机理及耦合效率,讨论了在扭转声波作用下,两种全光纤保偏声光调制器的结构和调制原理.最后讨论了这种调制器在温度、应变及气体检测中的应用,并讨论了其优缺点.