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2008 3rd International Conference on Sensing Technology最新文献

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Synthesis and characterization of CuO nanoparticle: Its electrochemical paracetamol sensor activity and substituted-2-aminothiophene synthesis applications 纳米氧化铜的合成与表征:电化学对乙酰氨基酚传感器活性及其在取代-2-氨基噻吩合成中的应用
Pub Date : 2023-10-12 DOI: 10.1080/28361466.2023.2270424
Mamatha DM, Suresha Kumara TH, Harish KN, Shamala T, Dinamani M, Shyam Prasad K., Surendra BS
In the present work, the synthesized nanoparticle was examined by multiple characterization techniques for physico-chemical, surface-morphological, elemental, and optical properties. These structural parameters of achieved nano-catalyst was studied by using P-XRD, SEM-EDAX, FT-IR and Energy band gap techniques. The electrochemical analysis of synthesized CuO nanoparticle modified with carbon paste was investigated using 0.1 M KCl under different scan rates of 0.01-0.05 V/s. The sensing activity of prepared material was performed for Paracetamol medicine at concentration 1-5 mM in the potential range of – 1.0 V to + 1.0 V using cyclic voltametric analysis. Microwave accelerated synthesis of substituted-2-aminothiophene by a 3-component (acetophenone, malononitrile and elemental sulphur) one pot Gewald reaction using low-cost nano-catalyst (CuO nanoparticle) to perform for chemical reactions. The synthesized compounds were confirmed by FT-IR, 1HNMR, 13C NMR and Mass spectral techniques. The antibacterial activity was examined using Bacillus cereus (gram positive) & Ciprofoxin (gram negative) organism and evaluated antifungal activities using Candida albicans (gram positive) & Itraconazole (gram negative) organism for prepared organic compounds tested under agar diffusion method. Molecular docking studies were discussed for both carboxylate and carbonitrile derivatives at the active site of the bacterial protein GlcN-6-P synthase. Green chemistry encourages the design of synthetic processes that minimize the use and generation of hazardous substances.
在目前的工作中,通过多种表征技术对合成的纳米颗粒进行了物理化学,表面形态,元素和光学性质的检测。采用P-XRD、SEM-EDAX、FT-IR和能隙技术对所制备的纳米催化剂的结构参数进行了研究。采用0.1 M氯化钾在0.01 ~ 0.05 V/s扫描速率下,对碳糊修饰的纳米CuO进行了电化学分析。在- 1.0 V ~ + 1.0 V电位范围内,用循环伏安法测定制备的材料对浓度为1 ~ 5mm的扑热息痛药物的感应活性。微波加速3组分(苯乙酮、丙二腈和单质硫)一锅格瓦尔德反应合成取代-2-氨基噻吩,采用低成本纳米催化剂(纳米氧化铜)进行化学反应。合成的化合物经FT-IR、1HNMR、13C NMR和质谱等技术确证。用蜡样芽孢杆菌(革兰氏阳性)和环丙霉素(革兰氏阴性)菌检测其抑菌活性,用白色念珠菌(革兰氏阳性)和伊曲康唑(革兰氏阴性)菌检测其抑菌活性。讨论了细菌蛋白GlcN-6-P合成酶活性位点羧酸盐和碳腈衍生物的分子对接研究。绿色化学鼓励设计合成过程,尽量减少有害物质的使用和产生。
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引用次数: 0
Electrochemical-sensor, antimicrobial and Environmental Assessments of Bi 3+ :Mg (1− x) Zr x O 4 NPs synthesized by bio-mediated combustion method 生物介导燃烧法合成bi3 +:Mg(1−x) Zr × o4nps的电化学传感器、抗菌和环境评价
Pub Date : 2023-10-05 DOI: 10.1080/28361466.2023.2266366
Surendra Bs, Gurushantha K, Sampath Chinnam, Vijaya VShanbhag, Kiran T, Chandrasekhar M, Manjula Sn, Shobha G, Ananda Murthy Hc
The reported research elucidates on a facile Phyllanthus acidus green-assisted solution combustion process developed for the synthesis of Bi3+:Mg(1−x) Zrx O4 nanoparticles (BMZ-NPs) and evaluation of their multifunctional applications. PXRD investigation shows the structural evidences and average-particle size (∼ 30-44) nm of prepared BMZ NPs. SEM-EDAX characterizes the surface-morphology and chemical constituents of BMZ-NPs. The band gap energy (Eg) values of undoped and Bi doped MgZrO4 NPs (0.01-0.05 mol%) were noted between 3.86 to 2.8 eV, investigated by UV-Visible spectral techniques. The electrochemical analysis of prepared samples revealed a good sensor activity towards paracetamol drug chemical detection under both acidic and basic electrolytic media. An excellent photo-degradation activity was noted for BMZ-NPs on AO-7 as model dye and shows 91.4% at 90 min under irradiation of UV Visible-light. Additionally, the antibacterial activity of BMZ NPs against gram + ve and gram -ve bacteria was examined in well diffusion agar technique. The obtained diameter of zone inhibition illustrates BMZ NPs hinders the growth of S. aureus bacteria (5.2 mm against antibiotic streptomycin of 2 mm) much more effectively than E. coli (5.2 mm against ampicillin of 7.7 mm). These results are confirms that the BMZ NPs is an potential candidate for catalytic, sensor and optoelectronic device applications.
本文介绍了一种简便的绿色辅助燃烧法合成Bi3+:Mg(1−x) Zrx O4纳米粒子(BMZ-NPs)的方法,并对其多功能应用进行了评价。PXRD表征了制备的BMZ NPs的结构特征和平均粒径(~ 30 ~ 44)nm。SEM-EDAX表征了BMZ-NPs的表面形貌和化学成分。通过紫外可见光谱技术研究了未掺杂和Bi掺杂的MgZrO4 NPs (0.01 ~ 0.05 mol%)的带隙能(Eg)值在3.86 ~ 2.8 eV之间。对制备的样品进行电化学分析,发现在酸性和碱性电解介质下对扑热息痛药物的化学检测具有良好的传感器活性。结果表明,BMZ-NPs对AO-7具有良好的光降解活性,在紫外可见光照射下90 min降解率为91.4%。此外,利用扩散琼脂技术检测了BMZ NPs对革兰氏+ ve和革兰氏-ve细菌的抑菌活性。获得的区抑制直径表明,BMZ NPs对金黄色葡萄球菌的生长(对2毫米的抗生素链霉素的5.2毫米)比大肠杆菌(对7.7毫米的氨苄西林的5.2毫米)更有效。这些结果证实了BMZ NPs是催化、传感器和光电子器件应用的潜在候选材料。
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引用次数: 0
CeO2/ZnO nanocomposite-modified glassy carbon electrode as an enhanced sensing platform for sensitive voltammetric determination of norepinephrine CeO2/ZnO纳米复合修饰玻碳电极作为敏感伏安法测定去甲肾上腺素的增强传感平台
Pub Date : 2023-09-08 DOI: 10.1080/28361466.2023.2255132
Zahra Sarbandian, H. Beitollahi
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引用次数: 0
Mechanical and corrosion properties of electrochemically deposited Ni-Nb2O5 composite coatings on mild steel for marine Applications 船用低碳钢电化学沉积Ni-Nb2O5复合镀层的力学和腐蚀性能
Pub Date : 2023-09-05 DOI: 10.1080/28361466.2023.2256215
V. S, Thomas Pinto, Praveen B. M., Bharath K. Devendra, N. J R, Wan Mohd Norsani bin Wan Nik
{"title":"Mechanical and corrosion properties of electrochemically deposited Ni-Nb2O5 composite coatings on mild steel for marine Applications","authors":"V. S, Thomas Pinto, Praveen B. M., Bharath K. Devendra, N. J R, Wan Mohd Norsani bin Wan Nik","doi":"10.1080/28361466.2023.2256215","DOIUrl":"https://doi.org/10.1080/28361466.2023.2256215","url":null,"abstract":"","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"84 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72966942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Voltammetric analysis of hazardous azo-dye indigo carmine at simple and cost-effective carbon paste sensor modified with L-phenylalanine l -苯丙氨酸修饰碳糊传感器对有害偶氮染料靛蓝胭脂红的伏安分析
Pub Date : 2023-05-31 DOI: 10.1080/28361466.2023.2218877
S. P. Nambudumada, J. G. Manjunatha
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引用次数: 2
Electrochemical Studies of Catechol And Hydroquinone At Poly(Nigrosine) Modified Carbon Paste Electrode : A Cyclic Voltammetric Study 邻苯二酚和对苯二酚在聚黑氨酸修饰碳糊电极上的电化学研究:循环伏安法研究
Pub Date : 2023-01-01 DOI: 10.1080/28361466.2023.2258789
S.B. Arpitha, B. E. Kumara Swamy, Rukaya Banu
In the present work, a polymeric thin layer that is poly(nigrosine) modified carbon paste electrode (PNMCPE) was established for the electrochemical analysis of catechol (CC) and hydroquinone (HQ) simultaneously and individually by using cyclic voltammetric (CV) technique. The PNMCPE shows a great electrocatalytic activity towards the oxidation of CC and HQ in phosphate buffer solution (PBS) of pH 7.4 than the BCPE. All experimental parameters are studied such as scan rate effect, effect of concentration, stability and interference study. With these studies optimised result was obtained at PNMCPE. The limit of detection (LOD) of CC and HQ was found to be 1.917 µM and 1.902 µM. and limit of quantification (LOQ) of CC and HQ was found to be 6.39 µM and 6.34 µM. The real sample analysis was successfully applied in tap water sample with a satisfactory recovery. Ultimately, this method can be used for the development of electrochemical sensor for sensitive analysis of CC and HQ.
本文采用循环伏安法(CV)建立了聚黑氨酸修饰的聚合物薄层碳糊电极(PNMCPE),用于同时和单独分析儿茶酚(CC)和对苯二酚(HQ)。在pH为7.4的磷酸缓冲液(PBS)中,PNMCPE对CC和HQ的氧化表现出比BCPE更强的电催化活性。对扫描速率效应、浓度效应、稳定性和干扰等实验参数进行了研究。通过这些研究,在PNMCPE获得了优化的结果。CC和HQ的检出限分别为1.917µM和1.902µM。CC和HQ的定量限分别为6.39µM和6.34µM。实样分析成功地应用于自来水样品中,回收率令人满意。最终,该方法可用于开发用于CC和HQ敏感分析的电化学传感器。
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引用次数: 0
An energy-efficient routing protocol in underwater sensor networks 一种水下传感器网络节能路由协议
Pub Date : 2008-12-01 DOI: 10.1109/ICSENST.2008.4757084
Chun-Hao Yang, K. Ssu
Wireless sensor networks can improve the efficiency for collecting information in underwater environments. In the past, researchers collected data under the sea by the way of both sending oceanographic equipments into water and recovering it at the end of mission. The whole process often took long time so real-time services cannot be supported. Wireless sensor networks can detect events and transmit the collected data to a data center immediately. However, current terrestrial routing protocols are not suitable in the underwater sensor networks. Due to unique characteristics in the water, the transmission performance and energy of the routing protocols are inefficient. This paper develops an energy-efficient routing protocol in underwater sensor networks. The protocol is designed to reduce the number of packets transferring in the network, and also decreases the needed energy consumption. The protocol has been evaluated using Network Simulator 2 (NS-2). The results show that the number of reduced packets is considerable.
无线传感器网络可以提高水下环境下信息采集的效率。在过去,研究人员通过将海洋仪器送入水中并在任务结束时回收的方式收集海底数据。整个过程通常需要很长时间,因此无法支持实时服务。无线传感器网络可以检测事件并立即将收集到的数据传输到数据中心。然而,现有的地面路由协议并不适用于水下传感器网络。由于水中的独特特性,路由协议的传输性能和能量都很低。本文提出了一种高效节能的水下传感器网络路由协议。该协议旨在减少网络中传输的数据包数量,并降低所需的能量消耗。该协议已使用网络模拟器2 (NS-2)进行了评估。结果表明,减少的数据包数量相当可观。
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引用次数: 38
Haar-like filtering based speech detection using integral signal for sensornet 基于haar滤波的传感器积分信号语音检测
Pub Date : 2008-12-01 DOI: 10.1109/ICSENST.2008.4757072
J. Nishimura, T. Kuroda
Speech detection using Haar - like filtering is proposed as a new and very low calculation cost method for sensornet applications. The simple Haar - like filters having variable filter width and shift width are trained to learn appropriate filter parameters from the training samples to detect speech. To further decrease the calculation cost, the use of intermediate signal representation called ldquointegral signalrdquo is proposed. Our method yielded speech/nonspeech classification accuracy of 97.44% for the input length of 0.1 s. Compared with high performance feature extraction method MFCC (mel-frequency cepstrum coefficient), the proposed haar-like filtering can be approximately 93.71% efficient in terms of the total amount of add and multiply calculations while capable of achieving the error rate of only 2.56% relative to MFCC.
基于类哈尔滤波的语音检测是一种新的、计算成本极低的传感器检测方法。对具有可变滤波器宽度和移位宽度的简单Haar类滤波器进行训练,从训练样本中学习适当的滤波器参数来检测语音。为了进一步降低计算成本,提出了一种称为ldq积分信号的中间信号表示方法。当输入长度为0.1 s时,我们的方法产生了97.44%的语音/非语音分类准确率。与高性能的特征提取方法MFCC (mel-frequency倒谱系数)相比,所提出的类哈尔滤波在加乘计算总量上的效率约为93.71%,而错误率仅为2.56%。
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引用次数: 5
Wide dynamic range hydrogen sensing using silver-rutile Schottky diode 宽动态范围氢传感使用银金红石肖特基二极管
Pub Date : 2008-11-01 DOI: 10.1109/ICSENST.2008.4757076
F. Hossein-Babaei, M. Purahmad
The hydrogen sensitivity of the reverse current in silver-rutile Schottky diode is investigated. Sample devices were prepared by the partial sintering of silver particles on thermally oxidized titanium foil. The device exhibited Schottky-type current-voltage characteristics in the 200 to 400degC operating temperature range in clean air. The high sensitivity and wide dynamic range observed for hydrogen detection are described by a model based on the variation of the height of the potential barrier established at the junction with respect to the concentration of the reducing contaminations in the surrounding atmosphere, which reduced the adsorbed oxygen coverage at the effective surface of the silver aggregate. The wide dynamic range of the device allowed a single sensor to measure H2 contamination in air in 50 ppm to 25% range.
研究了银金红石肖特基二极管中反向电流的氢灵敏度。将银颗粒部分烧结在热氧化钛箔上制备样品器件。在洁净空气中,该器件在200 ~ 400℃工作温度范围内表现出肖特基型的电流-电压特性。氢探测的高灵敏度和宽动态范围是通过一个模型来描述的,该模型基于在结处建立的势垒高度相对于周围大气中还原性污染物的浓度的变化,这降低了银聚集体有效表面的吸附氧覆盖率。该设备的宽动态范围允许单个传感器在50 ppm至25%的范围内测量空气中的H2污染。
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引用次数: 10
Breath flow sensing via spirometric instrumentation: Pathology prediction using a genetic algorithm 通过肺活量测量仪器的呼吸流量传感:使用遗传算法的病理预测
Pub Date : 2008-11-01 DOI: 10.1109/ICSENST.2008.4757120
A. Lay-Ekuakille, G. Vendramin, A. Trotta
Spirometry takes care to find and to predict respiratory system pathologies through instrumentation that mainly carries out measurements on the volume and the air flow expired from lungs. A complete spirometric instrumentation composed of three parts has been developed. The first part, ldquohardwarerdquo, gains a sampled signal from a sensor of the flow-time curve and sends it to the computer. The second part, ldquosoftwarerdquo, processes received data calculating the volume-time curve, the flow-volume curve and other main spirometric parameters, displaying the result of prediction. The last part, ldquoa genetic algorithmrdquo, trains itself on the base of a series of computing with real data, to produce spirometric parameters of a most likely pathologic curve and, to predict pathology type with less possible tests.
肺活量测定法主要通过测量肺活量和肺活量的仪器来发现和预测呼吸系统的病变。研制了一套由三部分组成的完整肺活量测量仪器。第一部分是硬件部分,从流量-时间曲线传感器获取采样信号并将其发送到计算机。第二部分ldquosoftwarerdquo对接收到的数据进行处理,计算容积-时间曲线、流量-体积曲线等主要肺功能参数,并显示预测结果。最后一部分,ldquoa遗传算法,在一系列实际数据计算的基础上进行自我训练,产生最可能的病理曲线的肺活量参数,并通过较少可能的测试来预测病理类型。
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引用次数: 3
期刊
2008 3rd International Conference on Sensing Technology
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