Development of nano-scale sensing device using dielectrophoresis

利用介电泳技术开发纳米级传感装置

• 批准号: 18360200
• 负责人: SUEHIRO Junya
• 金额: $ 10.36万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18360200/
• 关键词: Dielectrophoresis; Carbon nanotube; Microplasma; Palladium nanoparticle; Hydrogen gas sensor; Microhater; Bacterial sensor; Liquid phase reducing; ZnOナノロッド; 紫外光センサ; レーザーアブレーション

(A) Functionalization of DEP-fabricated CNT gas sensor with Pd nanoparticles using liquid-phase reducing reactions and its application to a hydrogen gas sensor(1) The CNT-retaining microelectrode was immersed in a palladium acetate solution together with a graphite rod. DC voltage was applied between the microelectrode (cathode) and the graphite rod (anode) so that palladium acetate could be reduced and catalytic Pd could be electrodeposited on the CNT surface.(2) The CNT sensor could reversibly respond to hydrogen gas in the air in the range of 0.01% - 1% concentration at room temperature.(B) Bacterial detection using a carbon nanotube gas sensor coupled with a microheater for ammonia synthesis by aerobic oxidization(1) We proposed a new bacteria sensing device, which is based on a CNT gas sensor and micro heater. Bacteria were heated by the micro heater in air so that ammonia (NH3) gas can be generated by oxidation reaction of organic components of bacteria.(2) Thus generated NH3 gas was detected by using the CNT gas sensor, which was fabricated by dielectrophoresis and installed in a small chamber together with the micro heater. The proposed device could detect and quantify 107 bacteria (Escherichia coli).

(A)利用液相还原反应将Pd纳米颗粒官能化DEP制备的CNT气敏元件及其在氢气传感器中的应用（1）将CNT保持微电极与石墨棒一起浸入乙酸钯溶液中。在微电极（阴极）和石墨棒（阳极）之间施加直流电压，使得乙酸钯可以被还原并且催化Pd可以电沉积在CNT表面上。(2)在室温下，碳纳米管传感器可以对空气中0.01% - 1%浓度范围内的氢气进行可逆响应。(B)碳纳米管气敏传感器与微加热器联用的细菌检测（1）提出了一种基于碳纳米管气敏传感器和微加热器的细菌传感装置。在空气中通过微加热器加热细菌，使得细菌的有机组分可以通过氧化反应产生氨（NH3）气体。(2)因此，产生的NH3气体检测通过使用CNT气体传感器，这是通过介电泳和安装在一个小的腔室与微加热器一起制造。该装置可以检测和定量107种细菌（大肠杆菌）。

项目成果

Fabrication of interfaces between carbon nanotubes and catalytic palladium using dielectrophoresis and its application to hydrogen gas senson

介电泳法制备碳纳米管与催化钯界面及其在氢气传感器中的应用

• 发表时间: 2007
• 期刊: Sensors and Actuators B:Chemical 127
• 作者: J.Suehiro;S.Hidaka;S.Yamane;K.Imasaka
• 通讯作者: K.Imasaka

Gas sensor using single-wall carbon nanohorns

• DOI: 10.1163/156855207781389447
• 发表时间: 2007
• 期刊: Advanced Powder Technology
• 影响因子: 5.2
• 作者: N. Sano;M. Kinugasa;F. Otsuki;J. Suehiro

Enhancement of microplasma-based water-solubilization of single-walled carbon nanotubes using gas bubbling in water

• DOI: 10.1088/0957-4484/18/33/335602
• 发表时间: 2007-08-22
• 期刊: NANOTECHNOLOGY
• 影响因子: 3.5
• 作者: Imasaka, Kiminobu;Kato, Yuki;Suehiro, Junya
• 通讯作者: Suehiro, Junya

水素ガスセンサ及び水素ガスセンサ製造方法

氢气传感器及氢气传感器的制造方法

• 发表时间: 2007

水素ガスセンサ及びその製造法

氢气传感器及其制造方法

• 发表时间: 2006