Advances in Engineering Advances in Engineering features breaking research judged by Advances in Engineering advisory team to be of key importance in the Engineering field. Papers are selected from over 10,000 published each week from most peer reviewed journals.
Yuchi Wang, Hua Mao, Lid B. Wong
Talanta, Volume 85, Issue 1, July 2011
Abstract
We have developed a Na-quantum dot (QD) nanosensor for [Na+]i measurements. Using this Na-QD, we determined the dynamic physiological responses of [Na+]i in nonexcitable human HEK-293F cells and excitable primary rat cardiac myocytes by pharmacologically manipulating the membrane permeability to Na+, the Na–K–2Cl cotransporter, and the Na+/H+ antiporter. These data suggest that the mechanisms of [Na+]i homeostasis can now be elucidated with this novel Na-QD nanosensor. This could have a broad impact on Na+ channel drug discovery.
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