Effect of Solution Concentration, Surface Bias and Protonation on the Dynamic Response of Amplitude-Modulated Atomic Force Microscopy in Water

Langmuir ◽  
2008 ◽  
Vol 24 (19) ◽  
pp. 10817-10824 ◽  
Author(s):  
Yan Wu ◽  
Chaitanya Gupta ◽  
Mark A. Shannon
Keyword(s):  
Atomic Force Microscopy ◽  
Dynamic Response ◽  
Solution Concentration ◽  
Force Microscopy ◽  
Atomic Force ◽  
Concentration Surface

scholarly journals Dynamic response of glucagon/anti-glucagon pairs to pulling velocity and pH studied by atomic force microscopy

2007 ◽  
Vol 22 (6) ◽  
pp. 1013-1019 ◽  
Author(s):  
Shiming Lin ◽  
Yu-Ming Wang ◽  
Long-Sun Huang ◽  
Chii-Wann Lin ◽  
Su-Ming Hsu ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Dynamic Response ◽  
Force Microscopy ◽  
Atomic Force ◽  
Pulling Velocity

scholarly journals Dynamic response of HPV16/anti-HPV16 pairs with unbinding events studied by atomic force microscopy

2016 ◽  
Vol 6 ◽  
pp. 203-208 ◽  
Author(s):  
Shiming Lin ◽  
Chung-Hung Hong ◽  
Bor-Ching Sheu ◽  
Long-Xin Wu ◽  
Wan-Chen Huang ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Dynamic Response ◽  
Force Microscopy ◽  
Atomic Force

scholarly journals Gradient Estimator-Based Amplitude Estimation for Dynamic Mode Atomic Force Microscopy: Small-Signal Modeling and Tuning

Sensors ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 2703
Author(s):  
Hafiz Ahmed ◽  
Mohamed Benbouzid
Keyword(s):  
Atomic Force Microscopy ◽  
Computational Complexity ◽  
Dynamic Response ◽  
Dynamic Mode ◽  
Small Signal ◽  
Signal Modeling ◽  
Force Microscopy ◽  
Atomic Force ◽  
Small Signal Modeling ◽  
High Computational Complexity

Atomic force microscopy (AFM) plays an important role in nanoscale imaging application. AFM works by oscillating a microcantilever on the surface of the sample being scanned. In this process, estimating the amplitude of the cantilever deflection signal plays an important role in characterizing the topography of the surface. Existing approaches on this topic either have slow dynamic response e.g., lock-in-amplifier or high computational complexity e.g., Kalman filter. In this context, gradient estimator can be considered as a trade-off between fast dynamic response and high computational complexity. However, no constructive tuning rule is available in the literature for gradient estimator. In this paper, we consider small-signal modeling and tuning of gradient estimator. The proposed approach greatly simplifies the tuning procedure. Numerical simulation and experimental results are provided to demonstrate the suitability of the proposed tuning procedure.

Preparation and Characterization of Spin-Coated Tetra-(tert-butyl) Phthalocyanine Copper Films

2010 ◽  
Vol 663-665 ◽  
pp. 1154-1158
Author(s):  
Bin Wang ◽  
Yi Qun Wu ◽  
Zhi Min Chen ◽  
Chun Ying He ◽  
Wu Biao Duan
Keyword(s):  
Atomic Force Microscopy ◽  
Room Temperature ◽  
Solution Concentration ◽  
Force Microscopy ◽  
Tert Butyl ◽  
Atomic Force ◽  
Coated Film ◽  
Response And Recovery ◽  
Nh3 Sensor ◽  
Relationship Of

Spin-coated films of tetra-(tert-butyl) phthalocyanine copper (CuPc(t-Bu)4) complex were obtained and characterized by Uv-vis absorption spectra and atomic force microscopy. A good linear relationship of the absorbance and solution concentration was detected. Low concentration solution could afford smooth, homogeneous and porous macrostructure film surfaces as indicated by atomic force microscopy. The responses of the film to NH3 were investigated at room temperature. In addition, the response and recovery characteristics, selectivity, stability and effect of thickness of the film to NH3 were also studied. The results indicated that the CuPc(t-Bu)4 spin-coated film could be exploited as an NH3 sensor at room temperature.

Sign in / Sign up

Export Citation Format

Share Document