Roger M. Leblanc

Abstract: The Yen–Mullins model, also known as the modified Yen model, specifies the predominant molecular and colloidal structure of asphaltenes in crude oils and laboratory solvents and consists of the following: The most probable asphaltene molecular weight is ∼750 g/mol, with the island molecular architecture dominant. At sufficient concentration, asphaltene molecules form nanoaggregates with an aggregation number less than 10. At higher concentrations, nanoaggregates form clusters again with small aggregation numbers. The Yen–Mullins model is consistent with numerous molecular and colloidal studies employing a broad array of methodologies. Moreover, the Yen–Mullins model provides a foundation for the development of the first asphaltene equation of state for predicting asphaltene gradients in oil reservoirs, the Flory–Huggins–Zuo equation of state (FHZ EoS). In turn, the FHZ EoS has proven applicability in oil reservoirs containing condensates, black oils, and heavy oils. While the development of the Yen–Mullin...

TL;DR: The BBB structure is clearly depicts and various NPs‐mediated drug delivery systems according to different NPs species are described and the BBB penetration mechanisms are concluded in general, emphasized and investigated in each drug delivery system.

TL;DR: Gly-His-Leu- leu- Leu-Cys coated CdS quantum dots detected Cu2+ and Ag+ selectively with high sensitivity, below 0.5 microM.

TL;DR: The intermolecular approach used here seems to be a very flexible and general method to design surface-oriented fluorescent sensors to meet different analytic purposes.

TL;DR: Studies on the interaction of C-dots with biomacromolecules are reviewed first, and recent developments of C -dots for target-specific bioimaging, drug delivery as well as theranostics development are highlighted and discussed.