Anisotropic elasticity of magnetically ordered agarose gel

Yamamoto, Ichiro; Ozawa, Shun; Makino, Takashi; Yamaguchi, M.; Takamasu, T.

doi:10.1088/1468-6996/9/2/024214

Cited by 13 publications

(10 citation statements)

References 7 publications

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“…The repeatability in compression was also excellent: the load-displacement responses are almost identical for any given concentration. In addition, a recent paper by Yamamoto et al [30] shows that storage modulus of agarose gel is almost linearly dependent on concentration from 0.5% to 5.0%. They used ultrasonic wave propagation method to measure storage modulus.…”

Section: Resultsmentioning

confidence: 98%

Concentration Dependence of Tensile Behavior in Agarose Gel Using Digital Image Correlation

Subhash

Liu

Moore³

et al. 2010

Exp Mech

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Tensile testing of soft, slippery biological materials is a challenging task due to the difficulties associated with the gripping method and accurate measurement of axial and lateral strains. In this manuscript, the above issues were effectively resolved by using a shoulder-supported tensile specimen and digital image correlation (DIC) technique, respectively. The tensile response of agarose gel with concentration ranging from 1.5 to 4.0 wt% was determined using the above method. Unlike the previous literature where the tensile strain was obtained from machine crosshead displacement, the DIC technique utilized a speckle pattern introduced into the gage area to obtain full-field maps of axial and lateral strains. It is found that the tensile strength and modulus of agarose gel increases linearly with an increase in agarose concentration. The Poisson's ratio was determined to be around 0.5 for virgin specimens and it decreased slightly with axial strain, possibly due to the loss of water during deformation.

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Section: Resultsmentioning

confidence: 98%

Concentration Dependence of Tensile Behavior in Agarose Gel Using Digital Image Correlation

Subhash

Liu

Moore³

et al. 2010

Exp Mech

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“…magnets with as trength of less than 1T esla can efficiently orient such an anofiller.E xamples include particles of magnetite, [50][51][52] barium ferrite, [53][54][55] and carbonyl iron [56][57][58] as well as nickel rods [59] and magnetite-coated alumina platelets. [60] Although such weak handheld magnets are generally not enough to orient diamagnetic nanofillers,s uperconducting magnets (with as trength of several Tesla) can efficiently orient them, such as peptide nanofibers, [61][62][63] polysaccharides, [64] functionalized carbon nanotubes, [65] micelles, [66,67] lipid bilayers, [68,69] graphene oxides, [70] and inorganic nanosheets. [71][72][73] Recent progress in superconducting technology has made such strong magnets easily accessible,a nd this method is widely used.…”

Section: Hydrogels With Oriented Nanofillersmentioning

confidence: 99%

Synthesis of Anisotropic Hydrogels and Their Applications

2018

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Owing to their water-rich structures, which are similar to those of biological tissues, hydrogels have long been regarded as promising scaffolds for artificial tissues and organs. However, in terms of the structural anisotropy, most synthetic hydrogels are substantially different from biological systems. Synthetic hydrogels are usually composed of randomly oriented three-dimensional polymer networks whereas biological systems adopt anisotropic structures with hierarchically integrated building units. Such anisotropic structures often play essential roles in biological systems to exhibit particular functions. In this context, anisotropic hydrogels provide an entry point for exploring biomimetic applications of hydrogels. Reflecting these aspects, an increasing number of studies on anisotropic hydrogels have been reported recently. This Minireview highlights the use and perspectives of these anisotropic hydrogels, particularly focusing on their preparation, structures, and applications.

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“…In It is reported that agarose undergoes magnetic alignment during gelation [15,16]. The origin of the alignment is attributed to a small crystallite that forms a crosslinking point of the gel.…”

Section: T 1 T 2 T 3 T 4 T 5 T 6 T 7 T 8 Tmentioning

confidence: 99%

Fabrication of a short carbon fiber/gel composite that responds to a magnetic field

Kimura¹,

Umehara²,

Kimura³

2010

Carbon

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A short carbon fiber (CF)/agarose gel composite in which short CFs were radially embedded in the gel matrix was fabricated. The composite was subjected to strong magnetic fields up to 8 T, to observe its deformation. The composite deformed so that the carbon fibers were aligned parallel to the magnetic field. The deformation was analyzed quantitatively in terms of the magnetic and elastic energies of the composite.

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Anisotropic elasticity of magnetically ordered agarose gel

Cited by 13 publications

References 7 publications

Concentration Dependence of Tensile Behavior in Agarose Gel Using Digital Image Correlation

Concentration Dependence of Tensile Behavior in Agarose Gel Using Digital Image Correlation

Synthesis of Anisotropic Hydrogels and Their Applications

Fabrication of a short carbon fiber/gel composite that responds to a magnetic field

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