Determination of the shear moduli of agarose gel using novel optical measurements

机译：使用新型光学测量方法测定琼脂糖凝胶的剪切模量

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The objective of this study was to measure viscoelastic shear (storage and loss) moduli of low concentrations of agarose gel using hyper-frequency viscoelastic spectroscopy which is a non-contacting optical method. Using a Rheospectris C500, measurements were made in an excitation frequency range of 10-1000 Hz. It was found that the magnitudes of the moduli increased with frequency. Favorable comparisons were found to values determined using dynamic mechanical analysis.

机译：这项研究的目的是使用非接触光学方法高频粘弹性谱法测量低浓度琼脂糖凝胶的粘弹性剪切模量（存储和损失）。使用Rheospectris C500，在10-1000 Hz的激发频率范围内进行测量。发现模量随频率增加。发现了与使用动态力学分析确定的值的有利比较。

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来源
《2014 40th Annual Northeast Bioengineering Conference》|2014年|1-2|共2页
会议地点 Boston MA(US)
作者
Guertin A.; Lee C.;
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作者单位

Franklin W. Olin Coll. of Eng., Needham, MA, USA;

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会议组织
原文格式 PDF
正文语种 eng
中图分类
关键词
biomechanics; molecular biophysics; polymer gels; proteins; shear modulus; viscoelasticity; Rheospectris C500; agarose gel concentrations; dynamic mechanical analysis; excitation frequency range; frequency 10 Hz to 1000 Hz; hyperfrequency viscoelastic spectroscopy; loss moduli; noncontacting optical method; optical measurements; storage moduli; viscoelastic shear moduli; Electron tubes; Frequency measurement; Geometry; Loss measurement; Materials; Optical variables measurement; Spectroscopy; agarose; biomaterials; dynami;

机译：生物力学;分子生物物理学;聚合物凝胶;蛋白质;剪切模量;粘弹性; Rhoospectris C500;琼脂糖凝胶浓度;动态力学分析;激发频率范围;频率10 Hz至1000 Hz;超频粘弹性谱;损耗模量;非接触光学法;光学测量储能模量;粘弹性剪切模量;电子管;频率测量;几何;损耗测量;材料;光学变量测量;光谱学;琼脂糖;生物材料;动力学;

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1. Investigation of the link between micromechanical interparticle bond rigidity measurements and macroscopic shear moduli of colloidal gels [J] . Laxton PB, Berg JC Colloids and Surfaces, A. Physicochemical and Engineering Aspects . 2007,第1a3期

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2. Identification of the testing parameters in high frequency dynamic shear measurement on agarose gels [J] . Chen QS, Ringleb SI, Hulshizer T, Journal of Biomechanics . 2005,第4期

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3. Characterizing Rayleigh wave and longitudinal shear wave propagation for measurements of elastic moduli using optical coherence elastography [J] . Wang Chongyang, Zhu Jiang, Zhu Lianqing, Applied physics express . 2021,第1期

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Determination of the shear moduli of agarose gel using novel optical measurements

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