Element identification and mass detection with a high frequency micro oscillator, and implementation of a liquid atomic force microscope

使用高频微振荡器进行元素识别和质量检测，以及液体原子力显微镜的实现

• 批准号: 21241035
• 负责人: KAWAKATS Hideki
• 金额: $ 30.2万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21241035/
• 关键词: AFM; 表面界面; APM; STM; TEMAFM; 固液界面; 力計測; SPM; マルチモード; 液中AFM; 環境制御型SPM

Atomic Force Microscopy(AFM) with chemical contrast at the atomiclevel was implemented by changing the established equifrequency shift FM mode to a new mode where the tip sample distance is regulated to give the local minima of the frequency shift. As a result atomic resolution images with angstroem order featufrersentof difcolours were readily acquired. As for application of emission to the measurement of molecules and nanooscillators, a FIMAFM was implemented. Self assembled monolayers deposited on a metal tip gave vibratory emission patterns. It was also ddetmhoantstrate molecules of different rigidity show different vibratory emission patterns. For liquidAFM, a photothermal excitation method was employed to enable simultaneous excitation oftorsion and deflection. Both modes showed good atomic resolution.oMfobifloigtgy zoneson mica was observed for mica immersed in pure water. Hight histogram showed that the foggy zone has discreet population of height, implying formation of an ice like structure that moves about.

通过将已建立的等频移 FM 模式更改为新模式，在原子级具有化学对比度的原子力显微镜 (AFM) 被实现，其中调节尖端样本距离以给出频移的局部最小值。结果，很容易获得具有埃级双色特征的原子分辨率图像。至于发射在分子和纳米振荡器测量中的应用，实施了FIMAFM。沉积在金属尖端上的自组装单分子层产生振动发射图案。不同硬度的振动发射体分子也表现出不同的振动发射模式。对于液体AFM，采用光热激发方法来同时激发扭转和偏转。两种模式都显示出良好的原子分辨率。对于浸入纯水中的云母，观察到了云母上的荧光带。高度直方图显示，雾区具有谨慎的高度分布，这意味着形成了移动的冰状结构。

项目成果

Measurement of Vibration of a Molecule Nanometric Oscillator by Emission

通过发射测量分子纳米振荡器的振动

• 发表时间: 2010
• 作者: H.NISIZAWA;H.KAWAKATSU
• 通讯作者: H.KAWAKATSU

Photothermal excitation of a single-crystalline silicon cantilever for higher vibration modes in liquid

• DOI: 10.1116/1.3077487
• 发表时间: 2009-03-01
• 期刊: JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
• 影响因子: 1.4
• 作者: Nishida, Shuhei;Kobayashi, Dai;Nishimori, Yuki
• 通讯作者: Nishimori, Yuki

Real-time atomic resolution imaging with chemical contrast

具有化学对比的实时原子分辨率成像

• 作者: Hirai M.;Mitamura M.;Hideki Kawakatsu
• 通讯作者: Hideki Kawakatsu

Molecular Resolution of a DOPC Lipid Bilayer in Liquid by Phase Modulation Atomic Force Microscopy

通过相位调制原子力显微镜对液体中 DOPC 脂质双层进行分子分辨率

• 发表时间: 2012
• 期刊: APL 101
• 作者: A. Hoel;T. Osaki,S. Takeuchi;S. Volz and H. Kawakatsu
• 通讯作者: S. Volz and H. Kawakatsu

Study of Time and Temperature Dependence on Structural Transitions of Solid/Liquid Interfaces using Liquid AFM

使用液体 AFM 研究固/液界面结构转变的时间和温度依赖性

• 发表时间: 2011
• 作者: 藤倉由記子;加嶋倫子;寺尾啓二;西川禎一;加藤愛彬;村上弘明
• 通讯作者: 村上弘明