multimodal atomic force microscopy for nanoimaging nanomechanics and biomolecular interactions

... Characterization by atomic force microscopy of alzheimer paired helical filaments under physiological conditions Biophys J 2004, 86:517-525 13 Eaton P, West P: Atomic Force Microscopy New York: Oxford University ... life sciences, bio-physics, and bio-technologies may better optimize and understand AFM measurements and avoid incorrect conclusions Abbreviations AFM: atomic force microscopy; CM: contact mode; ... Sørensen AH, Zandbergen JB, Bohr J: Contrast artifacts in tapping tip atomic force microscopy Appl Phys A 1998, 66:S329-S332 15 Mahmood IA, Reza Moheimani SO: Making a commercial atomic force microscope...

Ngày tải lên: 21/06/2014, 04:20

... substrate 22 1.4.3 Force curve measurement AFM force curves have great impact on the theoretical studies of tip-surface interactions for numerous materials properties.[191] Generally, the force curve ... 1.2 Comparison of force- assisted and bias assisted AFM nanolithography techniques Force- assisted AFM nanolithography Bias-assisted AFM nanolithography Operational principle Large force applied to ... principles: (i) force- assisted AFM nanolithography; (ii) bias-assisted AFM nanolithography (Table 1.2).[14] In force- assisted AFM nanolithography, a large force is applied to the tip for pattern...

Ngày tải lên: 11/09/2015, 14:34

... nano-discharge and shock wave generation for the formation of central and outer structures (c) Central and xii outer structures R, S and T produced by maintaining different tip voltages of 12, 10 and V for ... comprehensive studies and discussions on the atomic force microscopy (AFM)-based nanopatterning and in-situ nanocharacterization techniques The direct view of features and control of tip motion ... (i) force- assisted and (ii) bias-assisted nanolithography on the basis of their mechanistic and operational principles Force- assisted AFM nanolithography includes mechanical indentation and plowing,...

Ngày tải lên: 13/09/2015, 20:13

... further study Atomic force microscopy (AFM) is a powerful tool used for nanoscale structural analysis of protein complexes [15,16], and of supported lipid bilayers in particular [1720] For instance, ... the atomic force microscope Nat Struct Biol 7, 715718 29 Schneider S, Folprecht G, Krohne G & Oberleithner H (1995) Immunolocalization of lamins and nuclear pore complex proteins by atomic force ... supported lipid lms with the atomic force microscope Biochim Biophys Acta 1509, 1441 16 Rinia HA & de Kruijff B (2001) Imaging domains in model membranes with atomic force microscopy FEBS Lett 504, 194199...

Ngày tải lên: 16/03/2014, 02:20

... A (2000) Adapting atomic force microscopy for cell biology Ultramicroscopy 82, 289–295 14 Workman, R K and Manne, S (2000) Variable temperature fluid stage for atomic force microscopy Rev Sci ... R., and Quate, C F (1989) Forces in atomic force microscopy in air and water Appl Phys Lett 54, 2651–2653 Butt, H.-J., Siedle, P., Seifert, K., et al (1993) Scan speed limit in atomic force microscopy ... imaging in atomic force microscopy Ultramicroscopy 81(2), 35–40 22 Butt, H-J (1991) Measuring electrostatic, van der Waals, and hydration forces in electrolyte solutions with an atomic force microscope...

Ngày tải lên: 11/04/2014, 02:07

... applied for measurement of all the force- distance curves at the same speed Force- distance curves were obtained through standard retraction between the tip and cell surface Two hundred fifty-six force- distance ... http://www.nanoscalereslett.com/content/6/1/455 force between both immature and mature bone marrowderived dendritic cells (BMDCs) Obviously, this study would provide a novel insight into the nanostructure and force feature of immature and ... (2) and (3) During the AFM tip retraction, the AFM tip with the sample leads to a force signal with a distinct shape (4) The force increases until bond rupture occurs (5) at an unbinding force; ...

Ngày tải lên: 21/06/2014, 02:20

... A (2000) Adapting atomic force microscopy for cell biology Ultramicroscopy 82, 289–295 14 Workman, R K and Manne, S (2000) Variable temperature fluid stage for atomic force microscopy Rev Sci ... R., and Quate, C F (1989) Forces in atomic force microscopy in air and water Appl Phys Lett 54, 2651–2653 Butt, H.-J., Siedle, P., Seifert, K., et al (1993) Scan speed limit in atomic force microscopy ... imaging in atomic force microscopy Ultramicroscopy 81(2), 35–40 22 Butt, H-J (1991) Measuring electrostatic, van der Waals, and hydration forces in electrolyte solutions with an atomic force microscope...

Ngày tải lên: 27/06/2014, 08:20

... Imaging Using Atomic Force Microscopy Vishal Gupta Chapter Atomic Force Microscopy in Optical Imaging and Characterization 19 Martin Veis and Roman Antos Chapter Magnetic Force Microscopy: Basic ... pp (543-549), 0168-132X 16 Atomic Force Microscopy – Imaging, Measuring and Manipulating Surfaces at the Atomic Scale Drake, B and Hellmann, R (1991) Atomic Force Microscopy Imaging of the Albite ... elongated tip in 21 Atomic Force Microscopy in Optical Imaging and Characterization Atomic Force Microscopy in Optical Imaging and Characterization Ω (a) (b) Fig Principles of aperture (a) and apertureless...

Ngày tải lên: 28/06/2014, 14:20

... nuclei revealed by atomic force microscopy Scanning Microsc 1996, 10:989-994 Vesenka J, Mosher C, Schaus S, Ambrosio L, Henderson E: Combining optical and atomic force microscopy for life sciences ... Short cantilevers for atomic force microscopy Rev Sci Instrum 1996, 67:3583-3590 Ando T, Kodera N, Takai E, Maruyama D, Saito K, Toda A: A highspeed atomic force microscope for studying biological ... sperm by atomic force microscopy Fertil Steril 2001, 75:961-965 Joshi NV, Medina H, Osuna JA: Ultrastructural pathology of varicocele spermatozoa by using atomic force microscopy (AFM) Arch Androl...

Ngày tải lên: 11/08/2014, 00:22

... and protein composition Different types of LH antenna complexes and RCs from Rhodob sphaeroides have been structurally analyzed by X-ray crystallography, cryoelectron microscopy, and atomic force ... Buchs, Switzerland) for 40 Insoluble material was removed by centrifugation for 10 at 10 000 g The supernatant was then incubated in 10 mm Tris buffer and 0.5% Triton, and centrifuged for at 10 000 ... Hunter CN & Olsen JD (2004) Flexibility and size heterogeneity of the LH1 light harvesting complex revealed by atomic force microscopy: functional significance for bacterial photosynthesis J Biol...

Ngày tải lên: 18/02/2014, 18:20

... 22 23 24 25 26 27 plexes by electron and atomic force microscopies Biophys J 74, 1015–1023 Htun, H & Dahlberg, J.E (1989) Topology and formation of triple-stranded H-DNA Science 243, 1571–1576 ... supercoil-stabilized DNA cruciforms J Mol Biol 280, 61–72 Lyubchenko, Y.L., Jacobs, B.L., Lindsay, S.M & Stasiak, A (1995) Atomic- force microscopy of nucleoprotein complexes Scanning Microscopy 9, 705–727 ... triplex-forming Pyr/Pur regions exist in the genome widely and abundantly, certain Pyr/Pur loci may offer the triplex stems for inter- and intra-chromosomal interactions to modulate transcription and...

Ngày tải lên: 31/03/2014, 23:20

... normal forces are given in Figure 2a, b at both low -force regime (from approximately to 10 μN) and highforce regime (from approximately 10 to 20 μN), respectively The scratch was performed in the forward ... In the low -force regime, the groove depth and width increased linearly when the normal force ranging from to 10 μN, while in the high -force regime from 12 to 20 μN, the groove depth and width ... nickel-iron thin film and silicon using atomic force Microscopy J Appl Phys 2009, 106:044314 29 Fonseca Filho HD, Maurício MHP, Ponciano CR, Prioli R: Metal layer mask patterning by force microscopy lithography...

Ngày tải lên: 21/06/2014, 00:20

... contact resistance between a conductive tip and a single MWCNT, then between this CNT and a metal substrate By means of conductive probe atomic force microscopy (CP-AFM), we characterize at room ... of elastic contact was chosen for its simplicity and because for our AFM measurements quite low contact forces were applied Analytical solutions have the following form: a= · F · rt · E∗ ⎧ ⎪ ⎪F ... a force between 16 and 80 nN can be estimated E , E , ν and ν are respectively, the Young’s moduli and the Poisson’s ratios of the different materials involved in the tip-CNT, CNT-substrate and...

Ngày tải lên: 21/06/2014, 04:20

... Probe Microscopy and Spectroscopy Cambridge: Cambridge University Press; 1994 41 Sarid D: Scanning Force Microscopy with Applications to Electric, Magnetic and Atomic Forces Oxford: Oxford University ... and participated in its design and coordination; performed the gold sputter deposition, the annealing processes and the atomic force microscopy analyses; developed the theoretical framework for ... for example, for surface enhanced Raman spectroscopy (SERS) and surface resonance plasmonic (SPR) applications as plasmonic substrates Abbreviations AFM: atomic force microscopy; RBS: Rutherford...

Ngày tải lên: 21/06/2014, 05:20

... manuscript LY and PRIC grew the horizontal SiNWs and performed optical characterizations SP, ER, CC, CM and JPS grew the vertical SiNWs, prepared them for the AFM analysis, and performed optical and electrical ... evidenced for vertical SiNWs, and resistivity values were estimated indicating that phosphorus incorporation was not fully activated Abbreviations CP-AFM: conductive-probe atomic force microscopy; ... Electronic and topographic properties of amorphous and microcrystalline silicon thin films Thin Solid Films 2001, 57:383 18 Planès J, Houzé F, Chrétien P, Schneegans O: Conducting probe atomic force microscopy...

Ngày tải lên: 21/06/2014, 06:20

... optico-biosensoric studies [10,11] Conclusion Thus, atomic force microscopy (AFM) was used in this work to detect and visualize the isolated proteins and protein complexes between the components of ... kon, koff and KD values for the Ad/CYP11A1mon complex formation reaction were estimated as (290 ± 30) × 103 M-1 s -1 , 0.05 ± 0.005 s-1 and 0.17 ± 0.015 μM, respectively (see Table 2) For the oligomeric ... Visualization of the AdR and Ad molecules was carried out as described in «Materials and Methods» AFM images of Ad and AdR on the mica surface were obtained (Figure 3a and 3c, respectively), and heights of...

Ngày tải lên: 21/06/2014, 11:20

... (*10 nm in diameter and *300 nm in length) attached on Si probe and (2) a conventional Pt-coated Si probe with the curvature radius of *35 nm, the force constant of 34 N m-1, and the resonance ... Tox and Tres are denoted as the oxidation time and the rest time; Vox and Vres are the applied voltages during Tox and Tres, respectively We refer 1/(Tox + Tres) as the frequency of the waveform ... surface in ambient conditions, a water bridge is formed around the tip–sample junction due to the field-induced water condensation and the capillary force of water AFM tip then acts as a negatively...

Ngày tải lên: 22/06/2014, 01:20

... Scanning Probe Microscopy and Spectroscopy (Cambridge University Press, Cambridge, 1994) 10 D Sarid, Scanning Force Microscopy with Applications to Electric, Magnetic and Atomic Forces (Oxford University ... Figure 3a for the sample (h = nm), Fig 3b for the sample (h = nm), Fig 3c for the sample (h = 14 nm), Fig 3d for the sample (h = 20 nm), Fig 3e for the sample (h = 26 nm), and Fig 3f for the sample ... desorption of atoms and formation of overhangs and voids are negligibly small, the mass and volume conservation laws play an important role in the growth The SP equation for nonequilibrium and conservative...

Ngày tải lên: 22/06/2014, 01:20

... Tunneling Microscopy Atomic Force Microscopy Force Spectroscopy Photonic Force Microscopy References 13 21 30 The Atomic Force Microscope in the Study of Membrane Fusion and Exocytosis Bhanu P Jena and ... Tunneling Microscopy III Atomic Force Microscopy A Combination with Optical Microscopy B Combination with Patch-Clamp Technique IV Force Spectroscopy A Molecular Adhesion B Intramolecular Forces ... constant force mode also can be used by implementing a feedback loop for force control This mode provides not only the force and the error signal but also the measurement of lateral friction forces...

Ngày tải lên: 27/06/2014, 08:20

... accelerating voltage and atomic number At certain accelerating voltage, the shape of interaction volume is “tear drop” for low atomic number specimen and hemisphere for specimens of high atomic number ... engineer, and manipulate nanomaterials in-situ SEM Scanning Microscopy for Nanotechnology should be a useful and practical guide for nanomaterial researchers as well as a valuable reference book for ... (BSE), and yield a useful signal for imaging the sample Inelastic scattering occurs through a variety of interactions between the incident electrons and the electrons and atoms of the sample, and...

Ngày tải lên: 27/06/2014, 10:20