Physico-chemical and mechanical characterization of in-situ forming xyloglucan gels incorporating a growth factor to promote cartilage reconstruction

2017 ◽  
Vol 70 ◽  
pp. 745-752 ◽  
Author(s):  
Clelia Dispenza ◽  
Simona Todaro ◽  
Donatella Bulone ◽  
Maria Antonietta Sabatino ◽  
Giulio Ghersi ◽  
...  
Keyword(s):  
Growth Factor ◽  
Mechanical Characterization ◽  
In Situ Forming ◽  
Physico Chemical ◽  
Cartilage Reconstruction

Spectro-mechanical Characterization of Aromaticity and Maturity of Kerogens in Oil Shale at 6 nm Spatial Resolution

2018 ◽  
Author(s):  
Devon Jakob ◽  
Le Wang ◽  
Haomin Wang ◽  
Xiaoji Xu
Keyword(s):  
Spatial Resolution ◽  
Oil Shale ◽  
Infrared Imaging ◽  
Mechanical Characterization ◽  
Optical Diffraction ◽  
Chemical Compositions ◽  
Valuable Insight ◽  
Eagle Ford Shale

<p>In situ measurements of the chemical compositions and mechanical properties of kerogen help understand the formation, transformation, and utilization of organic matter in the oil shale at the nanoscale. However, the optical diffraction limit prevents attainment of nanoscale resolution using conventional spectroscopy and microscopy. Here, we utilize peak force infrared (PFIR) microscopy for multimodal characterization of kerogen in oil shale. The PFIR provides correlative infrared imaging, mechanical mapping, and broadband infrared spectroscopy capability with 6 nm spatial resolution. We observed nanoscale heterogeneity in the chemical composition, aromaticity, and maturity of the kerogens from oil shales from Eagle Ford shale play in Texas. The kerogen aromaticity positively correlates with the local mechanical moduli of the surrounding inorganic matrix, manifesting the Le Chatelier’s principle. In situ spectro-mechanical characterization of oil shale will yield valuable insight for geochemical and geomechanical modeling on the origin and transformation of kerogen in the oil shale.</p>

scholarly journals Synthesis and characterization of in situ forming anionic hydrogel as vitreous substitutes

2016 ◽  
Vol 105 (5) ◽  
pp. 977-988 ◽  
Author(s):  
Jue Liang ◽  
Jessica J. Struckhoff ◽  
Hongwei Du ◽  
Paul D. Hamilton ◽  
Nathan Ravi
Keyword(s):  
Synthesis And Characterization ◽  
In Situ Forming ◽  
Vitreous Substitutes

Microstructural and Mechanical Characterization of Catalyst Coated Membranes Subjected to In Situ Hygrothermal Fatigue

2015 ◽  
Vol 162 (14) ◽  
pp. F1461-F1469 ◽  
Author(s):  
Alireza Sadeghi Alavijeh ◽  
Ramin M.H. Khorasany ◽  
Zachary Nunn ◽  
Aronne Habisch ◽  
Michael Lauritzen ◽  
...  
Keyword(s):  
Mechanical Characterization ◽  
Coated Membranes

Mechanical Characterization of Polymer Nanowires Using MEMS

2006 ◽  
Author(s):  
B. A. Samuel ◽  
Bo Yi ◽  
R. Rajagopalan ◽  
H. C. Foley ◽  
M. A. Haque
Keyword(s):  
Mechanical Properties ◽  
Tensile Testing ◽  
Furfuryl Alcohol ◽  
Mechanical Characterization ◽  
Uniaxial Tensile ◽  
Testing Device ◽  
Uniaxial Tensile Testing ◽  
Polymer Nanowires

We present results on the mechanical properties of single freestanding poly-furfuryl alcohol (PFA) nanowires (aspect ratio &gt; 50, diameters 100–300 nm) from experiments conducted using a MEMS-based uniaxial tensile testing device in-situ inside the SEM. The specimens tested were pyrolyzed PFA nanowires (pyrolyzed at 800° C).

In situ mechanical characterization of polymers with the association of three optical techniques

2007 ◽  
Vol 91 (7) ◽  
pp. 071919 ◽  
Author(s):  
Stéphane André ◽  
Christophe Baravian ◽  
Norbert Renault ◽  
Christian Cunat
Keyword(s):  
Mechanical Characterization ◽  
Optical Techniques
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