The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Deformation and height anomaly of soft surfaces studied with an AFM
Abstract
The authors have measured the force-versus-indentation curves of different elastomers (polyurethane), rubber, cartilage, and living cells and deduced a parabolic tip shape from these curves. They have also calculated the radius of curvature of the AFM tip to be 50-100 nm. The calculated ranges of the local Young's moduli E are 0.6-2.4 MPa for rubber, 0.16-0.6 MPa for cartilage, and 0.013-0.15 MPa for a living cell. This means that an applied force of 1-10 pN is required to obtain high-resolution images of a living cell with about 1 nm vertical deformation and only a few nm 2 area of contact. Therefore, understanding the deformation mechanism is not only important for determining local elasticities, but also to understand the 'height' information and the resolution limits of AFM images. Deformation without strong adhesive forces causes a soft sample on a hard substrate to appear thinner, a fact which has already been observed in many AFM images.
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Cites
Israelachvili, J. N., & Adams, G. E. (1978) · Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases · doi:10.1039/f19787400975 · Cited by 1,812
Cited by
Nanoscale Mapping of the Elasticity of Microbial Cells by Atomic Force Microscopy
Touhami, A., Nysten, B., & Dufrêne, Y. F. (2003) · Langmuir · doi:10.1021/la034136x · Cited by 466
Measuring elasticity of biological materials by atomic force microscopy
Vinckier, A., & Semenza, G. (1998) · FEBS Letters · doi:10.1016/s0014-5793(98)00592-4 · Cited by 386
Wu, H. W., Kuhn, T., & Moy, V. T. (1998) · Scanning · doi:10.1002/sca.1998.4950200504 · Cited by 334
Stiffness Alterations of Single Cells Induced by UV in the Presence of NanoTiO2
Vileno, B., Lekka, M., Sienkiewicz, A., Jeney, S., Stoessel, G., Lekki, J., Forró, L., & Stachura, Z. (2007) · Environmental Science & Technology · doi:10.1021/es0629561 · Cited by 60
Hasim, S., Allison, D. P., Retterer, S. T., Hopke, A., Wheeler, R. T., Doktycz, M. J., & Reynolds, T. B. (2017) · Infection and Immunity · doi:10.1128/iai.00601-16 · Cited by 58
Metadata
- Authors
- Weisenhorn, A. L., Khorsandi, M., Kasas, S., Gotzos, V, & Butt, H. J.
- Venue
- Nanotechnology
- Publisher
- IOP Publishing
- Published
- 1993-04-01
- Volume
- 4
- Issue
- 2
- Pages
- 106-113
- ISSN
- 0957-4484 (ISSN-L)
- 1361-6528
- OpenAlex
- W2052998840
- Cited by
- 427
- References
- 1
- FWCI
- 4.91
- Type
- journal article
- Language
- en
- Open access
- closed
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- Weisenhorn, A. L., Khorsandi, M., Kasas, S., Gotzos, V, & Butt, H. J. (1993). Deformation and height anomaly of soft surfaces studied with an AFM. Nanotechnology. https://doi.org/10.1088/0957-4484/4/2/006
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
