【摘 要】
:
Chemosensor arrays have a great potential for on-site applications in real-world scenarios.However,to fabricate on chemosensor array a number of chemosensors are required to obtain various optical patterns for multi-analyte detection.Herein,we propose a m
【机 构】
:
Institute of Industrial Science,The University of Tokyo,Tokyo 153-8505,Japan
论文部分内容阅读
Chemosensor arrays have a great potential for on-site applications in real-world scenarios.However,to fabricate on chemosensor array a number of chemosensors are required to obtain various optical patterns for multi-analyte detection.Herein,we propose a minimized chemosensor array composed of only two types of carboxylate-functionalized polythiophene derivatives for the detection of eight types of metal ions.Upon recognition of the metal ions,the polythiophenes exhibited changes in their fluorescence intensity and various spectral shifts.Although both chemosensors have the same polymer backbone and recognition moiety,only the difference in the number of methylene groups contributed to the difference in the fluorescence response patterns.Conse-quently,the metal ions in aqueous media were successfully discriminated qualitatively and quantitatively by the chemosensor microarray on the glass chip.This study offers an approach for achieving a minimized chemosensor array just by changing the alkyl chain lengths without the necessity for many receptors and reporters.
其他文献
电力勘测设计企业为适应转型升级的需求和市场形式的变化,分包采购工作逐渐成为勘测业务的一种要重要辅助手段,科学合理采购可促进勘测业务“降本增效”,提升企业竞争力.采购服务质量是保证勘测成果可靠、实现“提质增效”的基础,通过梳理西北电力设计院有限公司(以下简称“西北院”)勘测业务采购类别和质量管控标准,探讨勘测业务全过程质量管控体系的应用实践,同时提出现阶段存在的问题及改进措施,旨在为勘测业务采购提供质量管理思路,保证勘测项目质量稳定可靠.
基于Monin Obukhov相似理论,提出一种以测风塔实测数据为基础筛选中性风速并以此计算地表粗糙度值的方法.相比传统的平坦地形粗糙度划分法中粗糙度取值的不确定性,新方法计算的粗糙度值唯一,而且通过分析计算并与实测值进行对比,结果表明:采用新方法时模拟的风能资源更加接近真实值,计算的粗糙度值准确性较高.
H2S is well-known as a colorless,acidic gas,with a notoriously rotten-egg smell.It was recently revealed that H2S is also an endogenous signaling molecule that has important biological functions,however,most of its physiology and pathology remains elusive
Heterocyclic compound quinoline and its derivatives exist in natural compounds and have a broad spectrum of biological activity.They play an important role in the design of new structural entities for medical applications.Similarly,indoles and their deriv
由于微电网(microgrid,MG)内参与调频的逆变器类电源和传统同步机类电源的特性差异,会造成并列运行过渡过程品质恶化,并可能引发系统瓦解.针对这一问题,首先对两类分布式电源(distributed generator,DG)的频率特性进行了理论分析和仿真分析,明确了其频率特性差异;在此基础上,基于虚拟同步发电机(virtual synchronous generator,VSG)技术和经典控制理论对逆变器类电源进行了频率特性重塑;最后对重塑后的并列运行特性进行了MATLAB仿真验证,并对重塑参数的影
电力系统长时间尺度时序仿真和生产模拟是可再生能源和电网规划设计阶段的重要依据,也是检验规划设计方案科学性的有效工具.首先,为了提高大规模电力系统长时间尺度时序仿真效率,针对输电网的特点,提出了一种输电网潮流线性化方法,并基于IEEE标准算例对线性潮流的精度及计算效率进行检验和对比,结果表明该方法不仅具有较高的计算精度,还可以有效减小大规模电力系统潮流的计算时间.然后针对可再生能源不同的选址定容方案,采用该线性潮流模型进行电力系统长时间尺度快速时序仿真.仿真得到了节点电压幅值、支路功率等关键潮流信息,对电力
Na+,Cl-and K+are the most abundant electrolytes present in biological fluids that are essential to the regulation of pH homeostasis,membrane potential and cell volume in living organisms.Herein,we report synthetic crown ether-thiourea conjugates as a cati
针对将非侵入式负荷识别技术应用到需求响应领域存在的算法复杂和分解速度慢的问题,提出一种概率负荷识别方法.基于概率负荷分解的原理,建立了概率负荷识别模型.根据电事件引起的有功功率、无功功率和谐波等特征变化,识别可控负荷的类别和状态切换;再利用可控负荷在一个状态的持续时间来求得设备的用电量;然后根据可控设备的用电量,即可评估用户参与需求响应的能力.利用用户真实的电力数据对模型进行验证,结果显示本模型可以快速精确地识别目标设备并计算出用电量,可高效地评估用户参与需求响应的能力.
随着国家清洁低碳、安全高效的现代电力工业体系的构建,远距离、大容量配套新能源电力外送已成为转变能源资源配置的一项重要途径.如何评估此类项目CO2排放水平及节能减排效益,已受到各界关注.以陕北某特高压直流输电工程为例,对其配套外送电源的CO2排放水平进行研究.结果表明:该工程实施火电与新能源打捆外送,不仅扩大送端省份的新能源消纳能力及范围,提高受端省份的非水可再生能源消纳比例,还直接降低了送端电源的CO2排放水平,当燃煤电源供电比例从0.995降低至0.7时,单位输电CO2排放强度大大降低,年减少CO2排放
抗剪强度参数的合理选取,是边坡稳定性评价的前提和基础,对于膨胀土地区的边坡稳定性的合理分析、评估,保障边坡区域的建(构)筑物的安全运行具有重要意义.通过对膨胀土地区边坡滑动破坏机理及特征的研究,探讨出膨胀土边坡抗剪强度参数的一种合理的取值方法,并应用于工程实例中.