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The University of Georgia

2 ARTICLES PUBLISHED IN JoVE

Chemistry

Exfoliation of Egyptian Blue and Han Blue, Two Alkali Earth Copper Silicate-based Pigments

Darrah Johnson-McDaniel¹, Tina T. Salguero¹

¹Department of Chemistry, The University of Georgia

The preparation and exfoliation of CaCuSi₄O₁₀ and BaCuSi₄O₁₀ are described. Upon stirring in hot water, CaCuSi₄O₁₀spontaneously exfoliates into monolayers, whereas BaCuSi₄O₁₀ requires ultrasonication in organic solvents. Near infrared (NIR) imaging illustrates the NIR emission properties of these materials, and aqueous dispersions of these nanomaterials are useful for solution processing.

Behavior

Paradigms of Lower Extremity Electrical Stimulation Training After Spinal Cord Injury

Ashraf S. Gorgey^1,2, Refka E. Khalil¹, Robert M. Lester¹, Gary A. Dudley³, David R. Gater⁴

¹Spinal Cord Injury and Disorders Service, Hunter Holmes McGuire VAMC, ²Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University, ³Deceased, Department of Kinesiology, The University of Georgia, ⁴Department of Physical Medicine and Rehabilitation, Penn State Milton S. Hershey Medical Center

Spinal cord injury is a traumatic medical condition that may result in elevated risks of chronic secondary metabolic disorders. Here, we presented a protocol using surface neuromuscular electrical stimulation-resistance training in conjunction with functional electrical stimulation-lower extremities cycling as a strategy to ameliorate several of these medical problems.