application of atomic force

... the official publication of the carbon nanotubes (CNTs) images during the period of 1950 to 1990 [1], these allotropes have become very promising candidates for various applications because of ... color and contrast of the electrical cartography occurs, consisting of an important and non-reversible increase of the measured resistance This effect is attributed to the oxidation of some amorphous ... Sophie Noël2and Jinbo Bai1* Abstract Using an atomic force microscope (AFM) at a controlled contact force, we report the electrical signal response of multi-walled carbon nanotubes (MWCNTs) disposed

Ngày tải lên: 21/06/2014, 04:20

... The study of surface morphology of Au deposited on mica is crucial for the fabrication of flat Au films for applications in biological, electronic, and optical devices The understanding of the growth ... properties We report on an atomic force microscopy (AFM) study of the morphology evolution of Au film deposited on mica by room-temperature sputtering as a function of subsequent annealing processes ... that the late stage of cluster growth is accompanied by the formation of circular depletion zones around the largest clusters From the quantification of the evolution of the size of these zones,

Ngày tải lên: 21/06/2014, 05:20

... height of AFM-visualized objects Therefore, in a series of AFM experiments, the heights of imaged proteins were mea-sured, and the distribution of protein images with height was built AFM of Non-Monomerized ... (a) and density of distribution with height (b) of Ad; AFM image (c) and density of distribution with height (d) of AdR Tapping mode Experimental conditions were as follows: 5 μl of 1 μM Ad and ... measurements in each of the four series Analysis of AFM Images The density of protein distribution with height, r(h), was calculated as r(h) = (Nh/N) × 100%, where Nh is the number of imaged proteins

Ngày tải lên: 21/06/2014, 11:20

... every aspect of this work. Trang 5Table of Contents ACKNOWLEDGEMENTS I TABLE OF CONTENTS III SUMMARY VI LIST OF ABBREVIATIONS VIII LIST OF SYMBOLS X LIST OF TABLES XI LIST OF FIGURES ... of Cytoadherence of P falciparum IRBCs 13 1.3 Objective and Scope of This Thesis 24 1.3.1 Objectives 24 1.3.2 Scope of Project 25 CHAPTER 2 ATOMIC FORCE MICROSCOPY AND SINGLE-MOLECULE FORCE ... and application in force spectroscopy 43 2.3.1 Sample preparation 44 2.3.2 Force mode 46 2.3.3 Interpretation of force curves 50 CHAPTER 3 AFM IMAGING OF SURFACE MORPHOLOGY OF INFECTED CELLS

Ngày tải lên: 11/09/2015, 14:34

... computer-generated contour map of the surface.186 The second type of SPM was atomic force microscopy (AFM) It was developed by Binnig and Quate in 1986.5 Although the ability of STM to obtain an atomic-scale ... a tool for investigating forces between the surfaces, such as van der Waals forces, electrostatic forces and magnetostatic forces A useful aspect in the application of AFM is that it can be operated ... amount of force felt by the tip as a function of the separation between the tip and sample A force curve (i.e force-versus-distance curve) can be constructed by monitoring deflection of the cantilever

Ngày tải lên: 14/09/2015, 11:38

... Force Imaging of RBC 39 3.1 Introduction to AFM Force Imaging 39 3.2 Force-distance Curves of RBC 40 3.3 The Hertz Model 41 3.4 Force Volume Imaging 43 3.5 Young’s Modulus Calculation of ... image of the force volume capturing process 45 Figure 19 Force Volume image and 3D view of a dehydrated RBC 46 Figure 20 Force Volume image and 3D view of a pathological swollen RBC 47 Figure 21 Force ... and 3D view of a fresh RBC 48 Figure 22 Cross section profile of a dehydrated RBC 50 Figure 23 Force curves of A, B, C, D, and E of the dehydrated RBC 51-53 Figure 24 Young’s modulus of points

Ngày tải lên: 30/09/2015, 14:23

... Figure 5 The effects of deformation force on AFM images of cell cortex 23 Figure 6 The effects of scan direction on AFM images of living MCF-7 cells 25 Figure 7 Illustration of photodiode detection ... CA, USA) was used for both living cell imaging and force curves collection. This AFM was equipped with a PicoForce module. The Pico‐Force scanner had a maximum XY scan range of 50 µm × 50 µm and Z range of 20 µm.    3.5 AFM ... understanding of cancer cells will lead to improved strategies in cancer diagnosis and treatment. Atomic force microscopy (AFM) has recently provided great progress in the study of cancer cells. This emerging technique allows the study of the  morphology and mechanical properties of cells in aqueous environment with high spatial resolution and force sensitivity.   

Ngày tải lên: 30/09/2015, 14:23

... the vector of general forces of the gravitational forces (28), (29) j j g q   U – is the vector of general forces of the driving forces (30), (31) here, i is the driving torque of joint i ... – is the vector of general forces and torques of nonconsevertive forces, such as cutting forces, acting forces, etc In this paper, we only consider cutting forces The cutting forces are determined ... locating vector of cutting point E of the tool's cutting edge, E is the angular velocity of the end effector Thus, we can express the vector of general forces of the cutting forces in the robot

Ngày tải lên: 12/01/2020, 02:03

... investigating atomic force microscopy maps of force curves Simone Dinarelli* , Marco Girasole and Giovanni Longo Abstract Background: The collection and analysis of Atomic Force Microscopy force curves ... Furthermore, the collection of several force curves over an extended area of the specimens allows reconstructing maps, called force volume maps, of the spatial distribution of the mechanical properties ... such as the force tomography Conclusions: The FC_analysis software aims to become a useful tool for the analysis of force curves maps collected using custom or commercial Atomic Force Microscopes,

Ngày tải lên: 25/11/2020, 14:10

... contribution of additional forces to the force-distance curve, e.g the capillary force as imaging in air and the electrostaticforce, osmotic pressure, hydration force, solvation force, and Jandt ... configurations ofthe force-distance curves of samples with different surfaceproperties (Veeco Instruments Inc 2004) Characterization of nanoemulsions using atomicforce microscopy To the best of our knowledge, ... and applications of nanoemulsions in various fields (Borthakur et al 2016; Jin et al 2016; Ranjan et al 2016; Saifullah, Ahsan, and Shishir2016) Fundamentals of atomic force microscopy and force

Ngày tải lên: 26/07/2022, 17:54

... Table of Contents: http://aip.scitation.org/toc/adv/4/12 Published by the American Institute of Physics Trang 2AIP ADVANCES 4, 127129 (2014)Characterization of surface modification in atomic force ... Comparison of the height of the dots produced at 10 V for various durations of a voltage pulse Once again, the negative voltage biases produce the highest features (b) Variation of the width of the ... produced with a voltage pulse of about 10 s The SEM image in Fig.8(c)is a magnified version of the edge of one of the large dots in Fig.8(b), showing cracks FIG 8 (a) SEM image of the line patterns produced

Ngày tải lên: 24/11/2022, 17:42

... mechanism of self-assembly of αS into fibrils, which is thought to play a role in the pathogenesis of PD It is known that both the conformation of monomeric αS6 and the structure of its amyloids12 ... spectra of αS fibrils aggregated in the presence of varying concentrations of NaCl. Trang 4fundamentally different nature than the canonical high-frequency mode of an antiparallel β-sheet: the TDM of ... within the fibrils, we have studied the aggregation of the full-length αS protein at different salt concentrations using a combination of atomic force microscopy (AFM), circular dichro-ism (UV-CD),

Ngày tải lên: 24/11/2022, 17:49

... Park, “Tapping mode atomic force microscopy using electrostatic force modulation,” Appl Phys Lett. 69, 2831 (1996). 7 N Kato, I Suzuki, H Kikuta, and K Iwata, “Force-balancing microforce sensor with ... actuations, achieved through the application of direct current and alternating current voltage schemes, respectively As an example application, we explore contact resonance atomic force microscopy, which ... displace-ment antinode of the eigenmode of interest, ideally covering one half-wavelength of the eigenmode The position of the cantilever chip in its spring-clip mount sets the location of the electrode

Ngày tải lên: 04/12/2022, 15:46

... theratio of ordered todisordered states, sothat theylackacertaindegreeofsensitivitycomparedto microscop-icaltechniques,suchasatomicforcemicroscopy(AFM) AFMis capableof visualisingthestructureofindividualmolecules.The ... moreheterogeneityofxanthan’srepeatunitthanwaspreviously assumedintermsoftheratioofthechargegroupswithinxanthan’s sidechainsdependinguponthefermentationconditions:Thereare 6differentpatternsofattachmentofpyruvateandacetategroups ... probabilityofanyfullyunravelledsectionsoftheirconformation If thesecondary structure of xanthan was one of theother previous interpretations (Norton et al., 1984) based upon the measurementsofthekineticsofconformationalordering,namely

Ngày tải lên: 07/01/2023, 20:39

... Trang 1THE UNIVERSITY OF DA NANG - UNIVERSITY OF ECONOMICS -*** -Group 2.1 Analysis of Sales Force Automation (MA) and the Insightly Application Lecturer: Phan Như Hiền Class: ... scope of this report, we will explore Operational CRM as well as thefield of Sales Force Automation (SFA) within Operational CRM Operational CRM is a system that offers marketing and sales professionals ... 6consultants, software application consultants, technology and infrastructureconsultants and other outsourced service providers.3 The functionality that is available in SFA software applications SFA applications

Ngày tải lên: 12/06/2024, 16:23

... 1ORIGINAL ARTICLEApplication of enzymes for textile fibres processing 1 CBMA Centre of Environmental and Molecular Biology, Department of Biology, University of Minho, Campus of Gualtar, Braga ... softness-enhancing effects of cellu-lases are washproof and non-greasy Optimization of biofinishing processes has been an important area of research Azevedo et al (2001) studied the desorption of cellulases ... microfibrils (hairs or fuzz) protruding from the surface of yarn because they are most susceptible to enzymatic attack This weakens the microfibrils, which tend to break off from the main body of

Ngày tải lên: 06/08/2013, 21:06

... (ozone/UV) process is applied for the reuse of sewage effluent Therefore, the aim of this study is to evaluate the effectiveness of ozone/UV process for the treatment of sewage effluent compared to the ... effluent The concentration of E coli was 980~1050 CFU/mL As shown in Figure 5, 3.6 mg/L of ozone dose and 0.83 W-min/L of UV dose were required for the 99% inactivation of E coli Results show ... mineralization of organics The oxidative effect of UV irradiation was insignificant, as shown by the 10% removal of TOC From this result, it was confirmed that ozonation had a limitation of organic

Ngày tải lên: 05/09/2013, 08:40

... performance 9 4.2 Sizing of the pump 10 5 Application of the Tulsa Jet Pump Model 13 5.1 Sizing and performance calculations 13 5.2 Evaluation of results 17 6 Application of the Tulsa model on ... Review and Application of the Tulsa Liquid Jet Pump Model December 2006 1515 Trang 20Review and Application of the Tulsa Liquid Jet Pump Model December 2006 Review and Application of the Tulsa ... 24Review and Application of the Tulsa Liquid Jet Pump Model December 2006 Review and Application of the Tulsa Liquid Jet Pump Model December 2006 2020 Trang 25Review and Application of the Tulsa

Ngày tải lên: 23/10/2013, 08:42

... CEFR: An Application of Standard-Setting Methodology Richard J Tannenbaum E Caroline Wylie Educational Testing Service Trang 2• Identify scores on TOEFL® iBT corresponding to the six proficiency ... Develops clear arguments with relevant examples on wide range of topics in field of interest • Sustains conversation with degree of fluency and spontaneity • Takes listener and cultural context ... profiles across score range – Writing 11 profiles • Score points 2, 4, 6, 8, 10 – Speaking 11 profiles • Score points 6, 10, 14, 15, 18, 19, 22 Trang 7Profile Approach• What score would a “just

Ngày tải lên: 16/01/2014, 23:20

... context of their own roles ARCHITECTURE FOR KM-BASED CRM SYSTEMS CRM projects usually fail because they force a lot of changes quickly on business units and the resulting applications often don’t ... on a mass general-ization of the characteristics of customers We address this issue in this paper by proposing an integrated framework for CRM through the application of knowledge management technology ... at the risk of being left behind Simply, CRM is a high-tech way of gathering mou-ntains of information about customers, then using it to make customers happy—or at least a source of more business

Ngày tải lên: 24/01/2014, 00:20