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Journal articles on the topic 'Cell mechanics, nanoindentation'

Author: Grafiati

Published: 10 March 2023

Last updated: 19 July 2025

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1

Bontempi, Marco, Gregorio Marchiori, Mauro Petretta та ін. "Nanomechanical Mapping of Three Dimensionally Printed Poly-ε-Caprolactone Single Microfibers at the Cell Scale for Bone Tissue Engineering Applications". Biomimetics 8, № 8 (2023): 617. http://dx.doi.org/10.3390/biomimetics8080617.

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Poly-ε-caprolactone (PCL) has been widely used in additive manufacturing for the construction of scaffolds for bone tissue engineering. However, its use is limited by its lack of bioactivity and inability to induce cell adhesion, hence limiting bone tissue regeneration. Biomimicry is strongly influenced by the dynamics of cell–substrate interaction. Thus, characterizing scaffolds at the cell scale could help to better understand the relationship between surface mechanics and biological response. We conducted atomic force microscopy-based nanoindentation on 3D-printed PCL fibers of ~300 µm thic

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Adusumalli, Ramesh-Babu, William M. Mook, Raphael Passas, Patrick Schwaller, and Johann Michler. "Nanoindentation of single pulp fibre cell walls." Journal of Materials Science 45, no. 10 (2010): 2558–63. http://dx.doi.org/10.1007/s10853-010-4226-9.

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Li, Qing Lin, Han Ping Mao, and Ping Ping Li. "Measurement of Micro-Mechanics Property of Cell Wall by Nano-Indention." Applied Mechanics and Materials 105-107 (September 2011): 1847–50. http://dx.doi.org/10.4028/www.scientific.net/amm.105-107.1847.

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To investigate the micro-mechanics property of cucumber mesophyll cell wall, an experiment was conducted at nanolevel scale with the help of nanoindentation masurement system after the tissue of cucumber leaf has been treated of fixing,dehydrating,embedding,slicing for the mesophyll. Loading-unloading curve showed: the cell wall deformed elastically before the stress reach 1.0MPa, after that, the cell wall deformed plastically;It also can be seen in the range elastic deformation that the stress-strain is nonlinear relationship .

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Zambito, Martina, Federica Viti, Alessia G. Bosio, Isabella Ceccherini, Tullio Florio, and Massimo Vassalli. "The Impact of Experimental Conditions on Cell Mechanics as Measured with Nanoindentation." Nanomaterials 13, no. 7 (2023): 1190. http://dx.doi.org/10.3390/nano13071190.

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The evaluation of cell elasticity is becoming increasingly significant, since it is now known that it impacts physiological mechanisms, such as stem cell differentiation and embryogenesis, as well as pathological processes, such as cancer invasiveness and endothelial senescence. However, the results of single-cell mechanical measurements vary considerably, not only due to systematic instrumental errors but also due to the dynamic and non-homogenous nature of the sample. In this work, relying on Chiaro nanoindenter (Optics11Life), we characterized in depth the nanoindentation experimental proce

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Han, Liuyang, Xingling Tian, Tobias Keplinger, et al. "Even Visually Intact Cell Walls in Waterlogged Archaeological Wood Are Chemically Deteriorated and Mechanically Fragile: A Case of a 170 Year-Old Shipwreck." Molecules 25, no. 5 (2020): 1113. http://dx.doi.org/10.3390/molecules25051113.

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Structural and chemical deterioration and its impact on cell wall mechanics were investigated for visually intact cell walls (VICWs) in waterlogged archaeological wood (WAW). Cell wall mechanical properties were examined by nanoindentation without prior embedding. WAW showed more than 25% decrease of both hardness and elastic modulus. Changes of cell wall composition, cellulose crystallite structure and porosity were investigated by ATR-FTIR imaging, Raman imaging, wet chemistry, 13C-solid state NMR, pyrolysis-GC/MS, wide angle X-ray scattering, and N2 nitrogen adsorption. VICWs in WAW possess

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Dragovich, Matthew, Jared Feindt, Daniel Altman, et al. "Investigation of the Reliability of AFM Nanoindentation-Derived Measurements of Cell Mechanics." Biophysical Journal 112, no. 3 (2017): 270a—271a. http://dx.doi.org/10.1016/j.bpj.2016.11.1466.

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Zhang, Bo, Yihan Guo, Xing'e Liu, Huiyu Chen, Shumin Yang, and Yan'gao Wang. "Mechanical properties of the fiber cell wall in Bambusa pervariabilis bamboo and analyses of their influencing factors." BioResources 15, no. 3 (2020): 5316–27. http://dx.doi.org/10.15376/biores.15.3.5316-5327.

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The cell wall mechanical properties are an important indicator for evaluating the overall mechanical properties of natural bamboo fibers. Using the nanoindentation technique, the variation of the mechanical properties of the fiber cell wall of Bambusa pervariabilis culms with different ages and different positions (both radial and longitudinal) was studied. Moreover, x-ray diffraction (XRD) was employed to measure the microfibril angle (MFA), and the correlation between the MFA and the mechanical properties of the fiber cell wall. The results showed that there was a remarkable difference in th

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Arfsten, J., C. Bradtmöller, I. Kampen, and A. Kwade. "Compressive testing of single yeast cells in liquid environment using a nanoindentation system." Journal of Materials Research 23, no. 12 (2008): 3153–60. http://dx.doi.org/10.1557/jmr.2008.0383.

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Due to their versatility and accuracy, nanoindentation systems are increasingly used for the characterization of micron-sized particles. Single microbial cells (e.g., yeast cells) can be regarded as micron-sized, liquid-filled biological particles. Applying a nanoindentation system for the compressive testing of those cells offers many options, such as testing in liquid environment. However, diverse experimental problems have to be resolved, especially the visualization of the cells in liquid and the alignment of the surfaces between which the cell is compressed. Single yeast cells were tested

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Wang, Xinzhou, Linguo Zhao, Bin Xu, Yanjun Li, Siqun Wang, and Yuhe Deng. "Effects of accelerated aging treatment on the microstructure and mechanics of wood-resin interphase." Holzforschung 72, no. 3 (2018): 235–41. http://dx.doi.org/10.1515/hf-2017-0068.

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AbstractPlywood panels prepared from loblolly pine with cured phenol resin (PF) and urea-formaldehyde resin (UF) were submitted to accelerated aging and the microstructures and mechanics of wood-resin interphase were studied by nanoindentation (NI) and nanoscale dynamic mechanical analysis (Nano-DMA). The mass loss (ML) of wood, PF and UF resins were 3.4, 5.0 and 4.6% after aging treatment, respectively, and a large amount of microcracks were observed on the surface of wood and resins after aging treatment, which also affected the static mechanics of the cell walls far from the interphase regi

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Yang, Wenjian, Damien Lacroix, Lay Poh Tan, and Jinju Chen. "Revealing the nanoindentation response of a single cell using a 3D structural finite element model." Journal of Materials Research 36, no. 12 (2021): 2591–600. http://dx.doi.org/10.1557/s43578-020-00004-5.

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AbstractChanges in the apparent moduli of cells have been reported to correlate with cell abnormalities and disease. Indentation is commonly used to measure these moduli; however, there is evidence to suggest that the indentation protocol employed affects the measured moduli, which can affect our understanding of how physiological conditions regulate cell mechanics. Most studies treat the cell as a homogeneous material or a simple core–shell structure consisting of cytoplasm and a nucleus: both are far from the real structure of cells. To study indentation protocol-dependent cell mechanics, a

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CAI, SHAOXIANG, YULIANG GUO, and YANJUN LI. "EFFECT OF PHENOL FORMALDEHYDE RESIN IMPREGNATION ON NANODYNAMIC VISCOELASTICITY OF PINUS MASSONIANA LAMB IN WET STATE." Wood Research 69, no. 3 (2024): 547–60. http://dx.doi.org/10.37763/wr.1336-4561/69.3.547560.

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We evaluated the effects of phenol formaldehyde (PF) resin modification on Masson pine (Pinus massoniana Lamb.) wood cell wall in wet states. The penetration degree of PF resin into wood cell was determined using confocal laser scanning microscopy (CLSM). The micromechanical properties of PF-modified wood cell walls in wet state were analyzed by quasi-static nanoindentation and dynamic modulus mapping techniques. Results showed that the PF resin significantly affected the static viscoelasticity and nanodynamic viscoelasticity of wood cell walls in oven-dried and wet states. The cell-wall mecha

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Marcotti, Stefania, Gwendolen C. Reilly, and Damien Lacroix. "Effect of cell sample size in atomic force microscopy nanoindentation." Journal of the Mechanical Behavior of Biomedical Materials 94 (June 2019): 259–66. http://dx.doi.org/10.1016/j.jmbbm.2019.03.018.

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Wagner, Leopold, Thomas K. Bader, and Karin de Borst. "Nanoindentation of wood cell walls: effects of sample preparation and indentation protocol." Journal of Materials Science 49, no. 1 (2013): 94–102. http://dx.doi.org/10.1007/s10853-013-7680-3.

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Zhang, Yuhang, Jianfei Xu, Yiqun Hu, Suhang Ding, Wenwang Wu, and Re Xia. "Nanoindentation and nanotribology behaviors of open-cell metallic glass nanofoams." International Journal of Mechanical Sciences 249 (July 2023): 108254. http://dx.doi.org/10.1016/j.ijmecsci.2023.108254.

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Wang, Xinzhou, Xuanzong Chen, Xuqin Xie, Zhurun Yuan, Shaoxiang Cai, and Yanjun Li. "Effect of Phenol Formaldehyde Resin Penetration on the Quasi-Static and Dynamic Mechanics of Wood Cell Walls Using Nanoindentation." Nanomaterials 9, no. 10 (2019): 1409. http://dx.doi.org/10.3390/nano9101409.

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To evaluate the effects of phenol formaldehyde (PF) resin modification on wood cell walls, Masson pine (Pinus massoniana Lamb.) wood was impregnated with PF resin at the concentrations of 15%, 20%, 25%, and 30%, respectively. The penetration degree of PF resin into wood tracheids was quantitatively determined using confocal laser scanning microscopy (CLSM). The micromechanical properties of the control and PF-modified wood cell walls were then analyzed by the method of quasi-static nanoindentation and dynamic modulus mapping techniques. Results indicated that PF resin with low molecular weight

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Zhao, Kejie. "Operando Nanoindentation: A Perfect Platform to Measure the Mechanical Properties of Electrodes during Electrochemical Reactions." ECS Meeting Abstracts MA2018-01, no. 32 (2018): 1950. http://dx.doi.org/10.1149/ma2018-01/32/1950.

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We present an experimental platform of operando nanoindentation that probes the dynamic mechanical behaviors of electrodes during real-time electrochemical reactions. The setup consists of a nanoindenter, an electrochemical station, and a custom fluid cell integrated in an inert environment. We evaluate the influence of the argon atmosphere, electrolyte solution, structural degradation and volumetric change of electrodes upon Li reactions, as well as the surface layer and substrate effects by control experiments. Results inform on the system limitations and capabilities, and provide guidelines

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Warren, Roseanne. "(Invited) Mechanics of Materials in All Solid-State Lithium Metal Batteries." ECS Meeting Abstracts MA2024-02, no. 2 (2024): 321. https://doi.org/10.1149/ma2024-022321mtgabs.

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All solid-state lithium metal batteries (ASSLBs) with ceramic solid electrolyte and lithium metal anode are promising candidates for next-generation, high energy density batteries. Unlike conventional lithium-ion batteries with liquid electrolyte, ASSLBs present a ceramic-metal interface at the anode that is prone to various mechanical failure modes, including: non-uniform plating causing cracks in the solid electrolyte and the anode current collector; non-uniform stripping creating gaps between anode and electrolyte; and cracking and void formation leading to dendrite growth, short-circuits a

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Jakes, Joseph E., and Donald S. Stone. "Best Practices for Quasistatic Berkovich Nanoindentation of Wood Cell Walls." Forests 12, no. 12 (2021): 1696. http://dx.doi.org/10.3390/f12121696.

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For wood and forest products to reach their full potential as structural materials, experimental techniques are needed to measure mechanical properties across all length scales. Nanoindentation is uniquely suited to probe in situ mechanical properties of micrometer-scale features in forest products, such as individual wood cell wall layers and adhesive bondlines. However, wood science researchers most commonly employ traditional nanoindentation methods that were originally developed for testing hard, inorganic materials, such as metals and ceramics. These traditional methods assume that the te

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Konnerth, Johannes, Notburga Gierlinger, Jozef Keckes, and Wolfgang Gindl. "Actual versus apparent within cell wall variability of nanoindentation results from wood cell walls related to cellulose microfibril angle." Journal of Materials Science 44, no. 16 (2009): 4399–406. http://dx.doi.org/10.1007/s10853-009-3665-7.

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Šnajdar Musa, Mateja, Gojko Marić, and Krešimir Grilec. "Nanoindentation of closed cell Al alloy foams subjected to different heat treatment regimes." Composites Part B: Engineering 89 (March 2016): 383–87. http://dx.doi.org/10.1016/j.compositesb.2013.12.079.

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Migliorini, Elisa, Elisabetta Ada Cavalcanti-Adam, Antonio Emmanuele Uva, et al. "Nanoindentation of mesenchymal stem cells using atomic force microscopy: effect of adhesive cell-substrate structures." Nanotechnology 32, no. 21 (2021): 215706. http://dx.doi.org/10.1088/1361-6528/abe748.

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22

Sun, Bailing, Yamei Zhang, Yingying Su, Xiaoqing Wang, and Yubo Chai. "Effect of Vacuum Heat Treatment on Larch Earlywood and Latewood Cell Wall Properties." Forests 14, no. 1 (2022): 43. http://dx.doi.org/10.3390/f14010043.

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The aim of this study was to evaluate the hygroscopicity and nanomechanics of earlywood (EW) and latewood (LW) larch after thermal modification under vacuum conditions. Wood samples were heat-treated in a vacuum atmosphere at 180–220 °C for 6 h, then their cell wall properties were observed using dynamic water vapor sorption (DVS), imaging Fourier-transform infrared (FTIR) microscopy, and nanoindentation. The results showed that the vacuum heat treatment reduced the hygroscopicity of EW and LW and increased hysteresis between the adsorption and desorption branches of the isotherm. Compared wit

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Wasmer, K., T. Wermelinger, A. Bidiville, R. Spolenak, and J. Michler. "In situ compression tests on micron-sized silicon pillars by Raman microscopy—Stress measurements and deformation analysis." Journal of Materials Research 23, no. 11 (2008): 3040–47. http://dx.doi.org/10.1557/jmr.2008.0363.

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Mechanical properties of silicon are of high interest to the microelectromechanical systems community as it is the most frequently used structural material. Compression tests on 8 μm diameter silicon pillars were performed under a micro-Raman setup. The uniaxial stress in the micropillars was derived from a load cell mounted on a microindenter and from the Raman peak shift. Stress measurements from the load cell and from the micro-Raman spectrum are in excellent agreement. The average compressive failure strength measured in the middle of the micropillars is 5.1 GPa. Transmission electron micr

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Boccaccio, Antonio, Antonio E. Uva, Massimiliano Papi, Michele Fiorentino, Marco De Spirito, and Giuseppe Monno. "Nanoindentation characterisation of human colorectal cancer cells considering cell geometry, surface roughness and hyperelastic constitutive behaviour." Nanotechnology 28, no. 4 (2016): 045703. http://dx.doi.org/10.1088/1361-6528/28/4/045703.

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Sternberg, Anna K., Liubov Izmaylova, Volker U. Buck, Irmgard Classen-Linke, and Rudolf E. Leube. "An Assessment of the Mechanophysical and Hormonal Impact on Human Endometrial Epithelium Mechanics and Receptivity." International Journal of Molecular Sciences 25, no. 7 (2024): 3726. http://dx.doi.org/10.3390/ijms25073726.

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The endometrial epithelium and underlying stroma undergo profound changes to support and limit embryo adhesion and invasion, which occur in the secretory phase of the menstrual cycle during the window of implantation. This coincides with a peak in progesterone and estradiol production. We hypothesized that the interplay between hormone-induced changes in the mechanical properties of the endometrial epithelium and stroma supports this process. To study it, we used hormone-responsive endometrial adenocarcinoma-derived Ishikawa cells growing on substrates of different stiffness. We showed that Is

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Wang, Xuan, Liza Wilson, and Daniel J. Cosgrove. "Pectin methylesterase selectively softens the onion epidermal wall yet reduces acid-induced creep." Journal of Experimental Botany 71, no. 9 (2020): 2629–40. http://dx.doi.org/10.1093/jxb/eraa059.

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Abstract De-esterification of homogalacturonan (HG) is thought to stiffen pectin gels and primary cell walls by increasing calcium cross-linking between HG chains. Contrary to this idea, recent studies found that HG de-esterification correlated with reduced stiffness of living tissues, measured by surface indentation. The physical basis of such apparent wall softening is unclear, but possibly involves complex biological responses to HG modification. To assess the direct physical consequences of HG de-esterification on wall mechanics without such complications, we treated isolated onion (Allium

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Catledge, Shane A., Yogesh K. Vohra, Damon D. Jackson, and Samuel T. Weir. "Adhesion of nanostructured diamond film on a copper–beryllium alloy." Journal of Materials Research 23, no. 9 (2008): 2373–81. http://dx.doi.org/10.1557/jmr.2008.0287.

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Microwave plasma chemical vapor deposition (CVD) was used to coat nanostructured diamond onto a copper–beryllium alloy (∼1.7 wt% Be) commonly used as a nonmagnetic gasket material in diamond anvil cell devices. The coating is expected to be useful in preventing plastic flow of Cu–Be gaskets in diamond anvil cell devices, thus allowing for increased sample volume at high pressures and leading to improved sensitivity of magnetic measurements. The coatings were characterized by Raman spectroscopy, glancing-angle x-ray diffraction, microscopy (optical, scanning electron, and atomic force), Rockwel

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Preimesberger, Juliane Irine, and Jaclyn Coyle. "Studying the Mechanics of NMC Cathode Particles for Direct Battery Recycling." ECS Meeting Abstracts MA2023-01, no. 2 (2023): 611. http://dx.doi.org/10.1149/ma2023-012611mtgabs.

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As the global usage of lithium-ion batteries skyrockets, there is increasing interest in recycling spent batteries. While the economic and environmental impacts of reclaiming high-value elements such as cobalt, nickel, and lithium are obvious, directly-recycling cathode materials takes this one step further by both recovering these elements as well as preserving particle structure, which takes significant processing cost and materials to manufacture. Previous literature has found a correlation between mechanical strength and cyclability of cathode materials, indicating that restoring the struc

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Erazo, Oswaldo, Joseph E. Jakes, Nayomi Z. Plaza, Judith Vergara-Figueroa, Paulina Valenzuela, and William Gacitúa. "Quasistatic and Dynamic Nanoindentation Measurements of Pinus radiata D. Don S2 and CCML Cell Wall Layers." Forests 14, no. 9 (2023): 1900. http://dx.doi.org/10.3390/f14091900.

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Quasistatic nanoindentation is a proven tool that provides information on the micromechanical behavior of wood cell walls. However, quasistatic tests cannot probe the time-dependent mechanical behavior shown by wood. Nanoindentation dynamic mechanical analysis (nanoDMA) can measure the viscoelastic properties of wood cell walls. This research aimed to study the quasistatic and viscoelastic properties of individual radiata pine wood (Pinus radiata D. Don) cell wall layers. To minimize variability and retrieve both properties at the same locations, a load function composed of a multiload-quasist

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Song, Yueming, Bhuvsmita Bhargava, Zoey Warecki, David Murdock Stewart, and Paul Albertus. "Multi-Scale Electrochemo-Mechanical Experiments on Thin Film Battery Materials." ECS Meeting Abstracts MA2022-02, no. 47 (2022): 1760. http://dx.doi.org/10.1149/ma2022-02471760mtgabs.

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The application of a solid-electrolyte may enable the use of certain high energy density anodes like Li and Si and also circumvents the flammable liquid-electrolyte. However, all solid components introduce multiple solid-solid interfaces whose responses are strongly affected by the mechanical state of the region on both sides, which can be affected by a combination of applied stack pressure and cycling induced volumetric change1. Electrochemo-mechanical coupling (ECM) studies2 are a relatively new area for this society, especially with thin film structures,3 which provide high purity, uniformi

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Zlámal, Petr, Tomáš Doktor, Petr Koudelka, et al. "Inspection of Local Influenced Zones in Micro-Scale Aluminium Specimens." Key Engineering Materials 606 (March 2014): 39–42. http://dx.doi.org/10.4028/www.scientific.net/kem.606.39.

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This study is focused on detection and characterisation of influenced zones in micro-scale specimens of aluminium foam after thermal and mechanical loading induced by preparation process for three-point bending test. Two cell-wall specimens were prepared from a slab of aluminium foam and influences of preparation process (machining) and thermal load on local mechanical properties were investigated using nanoindentation. Although the nanoindentation is powerful method for investigation of material properties of small zones, it can be reliably used only to obtain information about elastic proper

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Prošek, Zdeněk, Jaroslav Topič, Pavel Tesárek, et al. "Micromechanical Properties of Spruce Tissues Using Static Nanoindentation and Modulus Mapping." Applied Mechanics and Materials 732 (February 2015): 115–18. http://dx.doi.org/10.4028/www.scientific.net/amm.732.115.

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This paper discusses characterization of physical and mechanical properties of tissues of Norway spruce. Cell wall is composed of several layers, which is, due to their small size, difficult to characterize. For this reason, the work uses a combination of methods, atomic force microscopy (AFM) and nanoindentation. AFM is used to determine the topography of samples and nanoindentation to determine micromechanical properties of wood tissues. Prepared samples of glue laminated timber were tested by quasi-static and dynamic nanoindentation (modulus mapping technique) method.

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Wang, Jing He, Miao Yu, Li Liu, Jie Zhao, and Hong Xiang Wang. "Mechanical Characterization of Hepatoma Cells Using Atomic Force Microscope." Materials Science Forum 694 (July 2011): 869–73. http://dx.doi.org/10.4028/www.scientific.net/msf.694.869.

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In order to reveal variation of mechanical properties of hepatoma cells with nanometer resolution, atomic force microscopy (AFM)-based nanoindentation experiments are performed on hepatoma cell to derive Young’s modulus employing a corrected Hertz model. Under load conditions of nanoindentation force as 0.43809-0.73015nN and penetration rate as 0.4 Hz, the calculated value of Young’s modulus of hepatoma cells is 34.137±0.67kPa with a 95% confidence interval. The results demonstrate the Young’s modulus varies with the measurement position, and the center of cell possesses lower value than perip

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Gindl, W., H. S. Gupta, T. Schöberl, H. C. Lichtenegger, and P. Fratzl. "Mechanical properties of spruce wood cell walls by nanoindentation." Applied Physics A 79, no. 8 (2004): 2069–73. http://dx.doi.org/10.1007/s00339-004-2864-y.

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Konnerth, Johannes, and Wolfgang Gindl. "Mechanical characterisation of wood-adhesive interphase cell walls by nanoindentation." Holzforschung 60, no. 4 (2006): 429–33. http://dx.doi.org/10.1515/hf.2006.067.

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Abstract The elastic modulus, hardness, and creep factor of wood cell walls in the interphase region of four different adhesive bonds were determined by nanoindentation. In comparison with reference cell walls unaffected by adhesive, interphase cell walls from melamine-urea-formaldehyde (MUF) and phenol-resorcinol-formaldehyde (PRF) adhesive bonds showed improved hardness and reduced creep, as well as improved elastic modulus in the case of MUF. In contrast, cell walls from the interphase region in polyvinylacetate (PVAc) and one-component polyurethane (PUR) bonds showed more creep, but lower

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Wu, Wu, Shi, et al. "The Microstructure and Mechanical Properties of Poplar Catkin Fibers Evaluated by Atomic Force Microscope (AFM) and Nanoindentation." Forests 10, no. 11 (2019): 938. http://dx.doi.org/10.3390/f10110938.

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In this study, the microstructure and mechanical properties of poplar (Populus tomentosa) catkin fibers (PCFs) were investigated using field emission scanning electron microscope, atomic force microscopy (AFM), X-ray diffraction, and nanoindentation methods. Experimental results indicated that PCFs had a thin-wall cell structure with a large cell lumen and the hollow part of the cell wall took up 80 percent of the whole cell wall. The average diameters of the fiber and cell lumen, and the cell wall thickness were 5.2, 4.2, and 0.5 µm, respectively. The crystallinity of fibers was 32%. The AFM

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Li, Yanjun, Liping Yin, Chengjian Huang, et al. "Quasi-static and dynamic nanoindentation to determine the influence of thermal treatment on the mechanical properties of bamboo cell walls." Holzforschung 69, no. 7 (2015): 909–14. http://dx.doi.org/10.1515/hf-2014-0112.

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Abstract Bamboo was thermally treated at 180°C and 200°C, and the micromechanical properties of its cell walls were investigated by means of quasi-static and dynamic nanoindentation experiments. With increasing treatment temperatures, the average dry density and mass of the bamboo decreased, whereas the already reduced elastic modulus at 180°C of the fiber cell walls did not change, but the hardness showed increasing tendencies. Dynamic nanoindentation revealed reduced storage modulus $({E'_{\rm{r}}})$ and loss modulus $({E''_{\rm{r}}}\,)$ for the thermotreated bamboo cell walls compared with

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Rakshit, Tatini, Daniël P. Melters, Emilios K. Dimitriadis, and Yamini Dalal. "Mechanical properties of nucleoprotein complexes determined by nanoindentation spectroscopy." Nucleus 11, no. 1 (2020): 264–82. http://dx.doi.org/10.1080/19491034.2020.1816053.

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Chen, Jinju. "Nanobiomechanics of living cells: a review." Interface Focus 4, no. 2 (2014): 20130055. http://dx.doi.org/10.1098/rsfs.2013.0055.

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Nanobiomechanics of living cells is very important to understand cell–materials interactions. This would potentially help to optimize the surface design of the implanted materials and scaffold materials for tissue engineering. The nanoindentation techniques enable quantifying nanobiomechanics of living cells, with flexibility of using indenters of different geometries. However, the data interpretation for nanoindentation of living cells is often difficult. Despite abundant experimental data reported on nanobiomechanics of living cells, there is a lack of comprehensive discussion on testing wit

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Yu, Yan, Benhua Fei, Hankun Wang, and Genlin Tian. "Longitudinal mechanical properties of cell wall of Masson pine (Pinus massoniana Lamb) as related to moisture content: A nanoindentation study." Holzforschung 65, no. 1 (2011): 121–26. http://dx.doi.org/10.1515/hf.2011.014.

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Abstract The in situ imaging nanoindentation technique was used to investigate how the moisture content (MC) affects the longitudinal mechanical properties of Masson pine cell wall. Furthermore, nanoindentation tests in liquid water were performed. The results indicate that elastic modulus, hardness, and compression yield stress of wood wall are all linearly correlated to the selected MC region in the range from 4.5% to 13.1%. Remarkable differences were found between the experimental values measured in water and the extrapolated values based on regression equations below fiber saturation poin

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Huang, Yanhui, Benhua Fei, Yan Yu, Siqun Wang, Zengqian Shi, and Rongjun Zhao. "Modulus of elasticity and hardness of compression and opposite wood cell walls of Masson pine." BioResources 7, no. 3 (2012): 3028–37. http://dx.doi.org/10.15376/biores.7.3.3028-3037.

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Compression wood is commonly found in Masson pine. To evaluate the mechanical properties of the cell wall of Masson pine compression and opposite wood, nanoindentation was used. The results showed that the average values of hardness and cell wall modulus of elasticity of opposite wood were slightly higher than those of compression wood. With increasing age of the annual ring, the modulus of elasticity showed a negative correlation with microfibril angle, but a weak correlation was observed for hardness. In opposite and compression wood from the same annual ring, the differences in average valu

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Kim, Am Kee, Md Anwarul Hasan, Hak Joo Lee, and Seong Seock Cho. "Characterization of Submicron Mechanical Properties of Al-Alloy Foam Using Nanoindentation Technique." Materials Science Forum 475-479 (January 2005): 4199–202. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.4199.

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Nanoindentation test has been performed to characterize the mechanical properties of aluminium alloy foam cell wall. Two of the mechanical properties: hardness and Young’s modulus of cell wall material were evaluated using the stiffness of contact during both loading and unloading. Properties obtained from unloading stiffness were in better agreement with the conventional test result than those obtained from loading stiffness. The finite element analysis using nonlinear finite element code ABAQUS was performed to characterize the yield strength and the stress-strain curve of the cell wall mate

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Wang, Lei, Liguo Tian, Wenxiao Zhang, Zuobin Wang, and Xianping Liu. "Effect of AFM Nanoindentation Loading Rate on the Characterization of Mechanical Properties of Vascular Endothelial Cell." Micromachines 11, no. 6 (2020): 562. http://dx.doi.org/10.3390/mi11060562.

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Vascular endothelial cells form a barrier that blocks the delivery of drugs entering into brain tissue for central nervous system disease treatment. The mechanical responses of vascular endothelial cells play a key role in the progress of drugs passing through the blood–brain barrier. Although nanoindentation experiment by using AFM (Atomic Force Microscopy) has been widely used to investigate the mechanical properties of cells, the particular mechanism that determines the mechanical response of vascular endothelial cells is still poorly understood. In order to overcome this limitation, nanoin

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Lau, Ringo K. L., Alvin C. M. Kwok, W. K. Chan, T. Y. Zhang, and Joseph T. Y. Wong. "Mechanical Characterization of Cellulosic Thecal Plates in Dinoflagellates by Nanoindentation." Journal of Nanoscience and Nanotechnology 7, no. 2 (2007): 452–57. http://dx.doi.org/10.1166/jnn.2007.110.

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Dinoflagellates constitute an important group of microorganisms. Symbiotic dinoflagellates are responsible for the primary production of coral reef ecosystems and the phenomenon of their demise is known as "coral bleaching." Blooming of the planktonic dinoflagellates is the major cause of "red tides." Many dinoflagellates have prominent membrane-bound thecal plates at their cell cortices. These thecal plates have high cellulose content and are biologically fabricated into various shapes. However, the mechanical properties of theca have not previously been characterized; understanding these pro

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Lau, Ringo K. L., Alvin C. M. Kwok, W. K. Chan, T. Y. Zhang, and Joseph T. Y. Wong. "Mechanical Characterization of Cellulosic Thecal Plates in Dinoflagellates by Nanoindentation." Journal of Nanoscience and Nanotechnology 7, no. 2 (2007): 452–57. http://dx.doi.org/10.1166/jnn.2007.18041.

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Dinoflagellates constitute an important group of microorganisms. Symbiotic dinoflagellates are responsible for the primary production of coral reef ecosystems and the phenomenon of their demise is known as "coral bleaching." Blooming of the planktonic dinoflagellates is the major cause of "red tides." Many dinoflagellates have prominent membrane-bound thecal plates at their cell cortices. These thecal plates have high cellulose content and are biologically fabricated into various shapes. However, the mechanical properties of theca have not previously been characterized; understanding these pro

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Němeček, Jiří, and Vlastimil Kralik. "Local Mechanical Characterization of Metal Foams by Nanoindentation." Key Engineering Materials 662 (September 2015): 59–62. http://dx.doi.org/10.4028/www.scientific.net/kem.662.59.

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This paper deals with microstructure and micromechanical properties of two commercially available aluminium foams (Alporas and Aluhab). Since none of the materials is available in a bulk and standard mechanical testing at macro-scale is not possible the materials need to be tested at micro-scale. To obtain both elastic and plastic properties quasi-static indentation was performed with two different indenter geometries (Berkovich and spherical tips). The material phase properties were analyzed with statistical grid indentation method and micromechanical homogenization was applied to obtain effe

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Zhu, Xinyao, Lanjiao Liu, Zuobin Wang, and X. Liu. "Axisymmetric Contact Problem for a Flattened Cell: Contributions of Substrate Effect and Cell Thickness to the Determination of Viscoelastic Properties by Using AFM Indentation." Scanning 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/8519539.

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Nanoindentation technology has proven to be an effective method to investigate the viscoelastic properties of biological cells. The experimental data obtained by nanoindentation are frequently interpreted by Hertz contact model. However, in order to validate Hertz contact model, some studies assume that cells have infinite thickness which does not necessarily represent the real situation. In this study, a rigorous contact model based upon linear elasticity is developed for the interpretation of indentation tests of flattened cells. The cell, normally bonded to the Petri dish, is initially trea

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Zhao, Xiang, and Feng Hui Wang. "Mechanical Properties of Anode Layer of Solid Oxide Fuel Cell after Reduction." Advanced Materials Research 699 (May 2013): 409–12. http://dx.doi.org/10.4028/www.scientific.net/amr.699.409.

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The mechanical properties, such as hardness and elastic modulus, are determined by a work of indentation. The work of indentation method works well even though pile up is observed because of the use of the energy dissipated or work done during the indentation. In this work, nanoindentation tests are carried out for the anode layer of half-cell structure of solid oxide fuel cells(SOFCs), the typical mechanical properties are derived by the work of indentation.

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Brasinika, Despoina, Elias P. Koumoulos, Kyriaki Kyriakidou, et al. "Mechanical Enhancement of Cytocompatible 3D Scaffolds, Consisting of Hydroxyapatite Nanocrystals and Natural Biomolecules, Through Physical Cross-Linking." Bioengineering 7, no. 3 (2020): 96. http://dx.doi.org/10.3390/bioengineering7030096.

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Bioinspired scaffolds mimicking natural bone-tissue properties holds great promise in tissue engineering applications towards bone regeneration. Within this work, a way to reinforce mechanical behavior of bioinspired bone scaffolds was examined by applying a physical crosslinking method. Scaffolds consisted of hydroxyapatite nanocrystals, biomimetically synthesized in the presence of collagen and l-arginine. Scaffolds were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy (SEM), microcomputed tomography, and nanoindentation. Results revea

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Xing, Cheng, Siqun Wang, George M. Pharr, and Leslie H. Groom. "Effect of thermo-mechanical refining pressure on the properties of wood fibers as measured by nanoindentation and atomic force microscopy." Holzforschung 62, no. 2 (2008): 230–36. http://dx.doi.org/10.1515/hf.2008.050.

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Abstract Refined wood fibers of a 54-year-old loblolly pine (Pinus taeda L.) mature wood were investigated by nanoindentation and atomic force microscopy (AFM). The effect of steam pressure, in the range of 2–18 bar, during thermo-mechanical refining was investigated and the nano-mechanical properties and nano- or micro-level damages of the cell wall were evaluated. The results indicate that refining pressure has important effects on the physical and mechanical properties of refined fibers. No obvious damage was observed in the cell walls at pressures between 2 and 4 bar. Nano-cracks (most les

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