Results 341 to 350 of about 770,384 (397)

Heavy Oil Based Mixtures of Different Origins and Treatments Studied by Atomic Force Microscopy

, 2017
Heavy oil molecular mixtures were investigated on the basis of single molecules resolved by atomic force microscopy. The eight different samples analyzed include asphaltenes and other heavy oil fractions of different geographic/geologic origin and ...
B. Schuler, Shadi Fatayer, G. Meyer, E. Rogel, M. Moir, Yunlong Zhang, M. R. Harper, A. Pomerantz, Kyle D. Bake, M. Witt, D. Peña, J. D. Kushnerick, O. Mullins, C. Ovalles, F. V. D. Berg, L. Gross   +15 more
semanticscholar   +1 more source

Atomic Force Microscopy as Nanorobot

2011
Atomic force microscopy (AFM) is a powerful and widely used imaging technique that can visualize single molecules under physiological condition at the nanometer scale. In this chapter, an AFM-based nanorobot for biological studies is introduced.
Liu, Lianqing, Lai, King Wai Chiu, Yang, Ruiguo, Fung, Carmen Kar Man, Xi, Ning, Seiffert-Sinha, Kristina, Sinha, Animesh A., Li, Guangyong, Wang, Donna H.   +8 more
openaire   +5 more sources

Atomic Force Microscopy

Journal of the Japan Society of Colour Material, 2020
Physicists at the Swiss Nanoscience Institute and the University of Basel have succeeded in measuring the very weak van der Waals forces between individual atoms for the first time.
K. Nakajima, Keisuke Sekine, Kaede Mogi, Makiko Ito, Xiaobin Liang   +4 more
semanticscholar   +2 more sources

Unraveling the Molecular Structures of Asphaltenes by Atomic Force Microscopy.

Journal of the American Chemical Society, 2015
Petroleum is one of the most precious and complex molecular mixtures existing. Because of its chemical complexity, the solid component of crude oil, the asphaltenes, poses an exceptional challenge for structure analysis, with tremendous economic ...
B. Schuler, G. Meyer, D. Peña, O. Mullins, L. Gross   +4 more
semanticscholar   +1 more source

Nanofabrication with Atomic Force Microscopy

Journal of Nanoscience and Nanotechnology, 2004
Atomic force microscopy (AFM) was developed in 1986. It is an important and versatile surface technique, and is used in many research fields. In this review, we have summarized the methods and applications of AFM, with emphasis on nanofabrication. AFM is capable of visualizing surface properties at high spatial resolution and determining biomolecular ...
Qian Tang, Li Min Zhou, San-Qiang Shi
openaire   +3 more sources

Atomic Force Microscopy

1993
Abstract This chapter discusses atomic force microscopy (AFM), focusing on the methods for atomic force detection. Although the force detection always requires a cantilever, there are two types of modes: the static mode and the dynamic mode. The general design and the typical method of manufacturing of the cantilevers are discussed.
openaire   +1 more source

Atomic Force Microscopy of Proteins

2019
Atomic force microscopy (AFM) enables imaging of surface-deposited proteins and protein structures under physiological conditions, which is a benefit compared to ultra-high vacuum techniques such as electron microscopy. AFM also has the potential to provide more information from the phase in tapping mode or from functional AFM modes.
Yiran An, Sesha Manuguri, Sesha Manuguri, Jenny Malmström, Jenny Malmström   +4 more
openaire   +2 more sources

Nanorheology by atomic force microscopy

Review of Scientific Instruments, 2014
We present an Atomic Force Microscopy (AFM) based method to investigate the rheological properties of liquids confined within a nanosize gap formed by an AFM tip apex and a solid substrate. In this method, a conventional AFM cantilever is sheared parallel to a substrate surface by means of a lock-in amplifier while it is approaching and retracting from
Deborah Ortiz-Young, Elisa Riedo, Tai-De Li, Hsiang Chih Chiu   +3 more
openaire   +3 more sources

Atomic Force Microscopy of Viruses

2019
Atomic force microscopy employs a nanometric tip located at the end of a micro-cantilever to probe surface-mounted samples at nanometer resolution. Because the technique can also work in a liquid environment it offers unique possibilities to study individual viruses under conditions that mimic their natural milieu.
P. J. de Pablo, Iwan A. T. Schaap
openaire   +3 more sources

Atomic Force Microscopy (AFM)

Current Protocols in Microbiology, 2008
AbstractThe atomic force microscope (AFM) is an important tool for studying biological samples due to its ability to image surfaces under liquids. The AFM operates by physical interaction of a cantilever tip with the molecules on the cell surface. Adhesion forces between the tip and cell surface molecules are detected as cantilever deflections.
Andreea Trache, Gerald A. Meininger
openaire   +3 more sources