Adhesion Force Mapping of Raw and Treated Flax Fibres Using AFM Force-Volume

2009 ◽  
Vol 4 (2) ◽  
pp. 66-72 ◽  
Author(s):  
Gijo Raj ◽  
Eric Balnois ◽  
Christophe Baley ◽  
Yves Grohens
Keyword(s):  
Adhesion Force ◽  
Flax Fibres ◽  
Force Mapping ◽  
Force Volume

scholarly journals Quantitative Nanomechanical Mapping of Polyolefin Elastomer at Nanoscale with Atomic Force Microscopy

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Shuting Zhang ◽  
Yihui Weng ◽  
Chunhua Ma
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Mechanical Response ◽  
Adhesion Force ◽  
Time Dependent ◽  
Surface Adhesion ◽  
Force Microscopy ◽  
Mechanics Model ◽  
Atomic Force ◽  
Force Volume

AbstractElastomeric nanostructures are normally expected to fulfill an explicit mechanical role and therefore their mechanical properties are pivotal to affect material performance. Their versatile applications demand a thorough understanding of the mechanical properties. In particular, the time dependent mechanical response of low-density polyolefin (LDPE) has not been fully elucidated. Here, utilizing state-of-the-art PeakForce quantitative nanomechanical mapping jointly with force volume and fast force volume, the elastic moduli of LDPE samples were assessed in a time-dependent fashion. Specifically, the acquisition frequency was discretely changed four orders of magnitude from 0.1 up to 2 k Hz. Force data were fitted with a linearized DMT contact mechanics model considering surface adhesion force. Increased Young’s modulus was discovered with increasing acquisition frequency. It was measured 11.7 ± 5.2 MPa at 0.1 Hz and increased to 89.6 ± 17.3 MPa at 2 kHz. Moreover, creep compliance experiment showed that instantaneous elastic modulus E1, delayed elastic modulus E2, viscosity η, retardation time τ were 22.3 ± 3.5 MPa, 43.3 ± 4.8 MPa, 38.7 ± 5.6 MPa s and 0.89 ± 0.22 s, respectively. The multiparametric, multifunctional local probing of mechanical measurement along with exceptional high spatial resolution imaging open new opportunities for quantitative nanomechanical mapping of soft polymers, and can potentially be extended to biological systems.

scholarly journals Exploring complex transitions between polymorphs on a small scale by coupling AFM, FTIR and DSC: the case of Irganox 1076® antioxidant

RSC Advances ◽  
2017 ◽  
Vol 7 (7) ◽  
pp. 3804-3818 ◽  
Author(s):  
Johanna Saunier ◽  
Jean-Marie Herry ◽  
Najet Yagoubi ◽  
Christian Marlière
Keyword(s):  
Adhesion Force ◽  
Small Scale ◽  
Temperature Range ◽  
Force Mapping

Thanks to adhesion force mapping by AFM, solid/solid transitions are distinguished from melting/recrystallization processes occurring in the same temperature range.

scholarly journals Single-Cell Adhesion Force Mapping of a Highly Sticky Bacterium in Liquid

2021 ◽  
Author(s):  
Satoshi Ishii ◽  
Shogo Yoshimoto ◽  
Katsutoshi Hori
Keyword(s):  
Cell Surface ◽  
Adhesion Force ◽  
Quantitative Imaging ◽  
Direct Interaction ◽  
Acinetobacter Baylyi ◽  
Force Microscopy ◽  
Strong Adhesion ◽  
Force Mapping ◽  
A Cell ◽  
Casamino Acids

<p>The highly sticky bacterium <i>Acinetobacter</i> sp. Tol 5 adheres to various material surfaces via its cell surface nanofiber protein, AtaA. This adhesiveness has only been evaluated based on the amount of cells adhering to a surface. In this study, the adhesion force mapping of a single Tol 5 cell in liquid using the quantitative imaging mode of atomic force microscopy (AFM) revealed that the strong adhesion of Tol 5 was several nanonewtons, which was outstanding compared with other adhesive bacteria. The adhesion force of a cell became stronger with the increase in AtaA molecules present on the cell surface. Many fibers of peritrichate AtaA molecules simultaneously interact with a surface, strongly attaching the cell to the surface. The adhesion force of a Tol 5 cell was drastically reduced in the presence of 1% casamino acids but not in deionized water (DW), although both liquids decrease the adhesiveness of Tol 5 cells, suggesting that DW and casamino acids inhibit the cell approaching step and the subsequent direct interaction step of AtaA with surfaces, respectively. Heterologous production of AtaA provided non-adhesive <i>Acinetobacter baylyi</i> ADP1 cells with a strong adhesion force to AFM tip surfaces of silicon and gold.</p>

Combined Nanoindentation and Adhesion Force Mapping Using the Atomic Force Microscope:  Investigations of a Filled Polysiloxane Coating

Langmuir ◽  
2002 ◽  
Vol 18 (25) ◽  
pp. 10011-10015 ◽  
Author(s):  
Peter Eaton ◽  
Francis Fernández Estarlich ◽  
Richard J. Ewen ◽  
Thomas G. Nevell ◽  
James R. Smith ◽  
...  
Keyword(s):  
Atomic Force Microscope ◽  
Adhesion Force ◽  
Atomic Force ◽  
Force Mapping

scholarly journals Single-Cell Adhesion Force Mapping of a Highly Sticky Bacterium in Liquid

2021 ◽  
Author(s):  
Satoshi Ishii ◽  
Shogo Yoshimoto ◽  
Katsutoshi Hori
Keyword(s):  
Cell Surface ◽  
Adhesion Force ◽  
Quantitative Imaging ◽  
Direct Interaction ◽  
Acinetobacter Baylyi ◽  
Force Microscopy ◽  
Strong Adhesion ◽  
Force Mapping ◽  
A Cell ◽  
Casamino Acids

<p>The highly sticky bacterium <i>Acinetobacter</i> sp. Tol 5 adheres to various material surfaces via its cell surface nanofiber protein, AtaA. This adhesiveness has only been evaluated based on the amount of cells adhering to a surface. In this study, the adhesion force mapping of a single Tol 5 cell in liquid using the quantitative imaging mode of atomic force microscopy (AFM) revealed that the strong adhesion of Tol 5 was several nanonewtons, which was outstanding compared with other adhesive bacteria. The adhesion force of a cell became stronger with the increase in AtaA molecules present on the cell surface. Many fibers of peritrichate AtaA molecules simultaneously interact with a surface, strongly attaching the cell to the surface. The adhesion force of a Tol 5 cell was drastically reduced in the presence of 1% casamino acids but not in deionized water (DW), although both liquids decrease the adhesiveness of Tol 5 cells, suggesting that DW and casamino acids inhibit the cell approaching step and the subsequent direct interaction step of AtaA with surfaces, respectively. Heterologous production of AtaA provided non-adhesive <i>Acinetobacter baylyi</i> ADP1 cells with a strong adhesion force to AFM tip surfaces of silicon and gold.</p>

Adhesion Force Mapping of Polymer Surfaces:  Factors Influencing Force of Adhesion

Langmuir ◽  
2002 ◽  
Vol 18 (8) ◽  
pp. 3387-3389 ◽  
Author(s):  
Peter Eaton ◽  
James R. Smith ◽  
Paul Graham ◽  
John D. Smart ◽  
Thomas G. Nevell ◽  
...  
Keyword(s):  
Adhesion Force ◽  
Polymer Surfaces ◽  
Factors Influencing ◽  
Force Mapping

Variability in surface polarity of wood by means of AFM adhesion force mapping

2014 ◽  
Vol 457 ◽  
pp. 82-87 ◽  
Author(s):  
Stephan Frybort ◽  
Michael Obersriebnig ◽  
Ulrich Müller ◽  
Wolfgang Gindl-Altmutter ◽  
Johannes Konnerth
Keyword(s):  
Adhesion Force ◽  
Surface Polarity ◽  
Force Mapping

Topography effects in AFM force mapping experiments on xylan-decorated cellulose thin films

Holzforschung ◽  
2016 ◽  
Vol 70 (12) ◽  
pp. 1115-1123 ◽  
Author(s):  
Christian Ganser ◽  
Katrin Niegelhell ◽  
Caterina Czibula ◽  
Angela Chemelli ◽  
Christian Teichert ◽  
...  
Keyword(s):  
Thin Films ◽  
Adhesion Force ◽  
Resonance Spectroscopy ◽  
Phase Imaging ◽  
Adhesion Forces ◽  
Force Microscopy ◽  
Atomic Force ◽  
Multiple Parameter ◽  
Force Mapping ◽  
Imaging Mode

Abstract Xylan-coated cellulose thin films has been investigated by means of atomic force microscopy (AFM) and force mapping experiments. The birch xylan deposition on the film was performed under control by means of a multiple parameter surface plasmon resonance spectroscopy (MP-SPR) under dynamic conditions. The coated films were submitted to AFM in phase imaging mode to force mapping with modified AFM tips (sensitive to hydrophilic OH and hydrophobic CH3 groups) in order to characterize and localize the xylan on the surfaces. At the first glance, a clear difference in the adhesion force between xylan-coated areas and cellulose has been observed. However, these different adhesion forces originate from topography effects, which prevent an unambiguous identification and subsequent localization of the xylan on the cellulosic surfaces.

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