Acridine orange fluorescence in chromosome cytochemistry: Molecular modeling rationale for understanding the differential fluorescence on double- and single-stranded nucleic acids.

Many fluorophores display interesting features that make them useful biological labels and dyes, particularly in Cell Biology and Cytogenetics. Changes in the absorption-emission spectra (ortho- and metachromasia) are accounted among them. Acridine orange (AO) is one of such fluorochromes with an exemplary orthochromatic vs.

Can flowers affect land surface albedo and soil microclimates?

The phenology of vegetation, namely leaf-out and senescence, can influence the Earth's climate over regional spatial scales and long time periods (e.g., over 30 years or more), in addition to microclimates over local spatial scales and shorter time periods (weeks to months).

Plasmonic Hot-Electron Reactive Oxygen Species Generation: Fundamentals for Redox Biology.

For decades, the possibility to generate Reactive Oxygen Species (ROS) in biological systems through the use of light was mainly restricted to the photodynamic effect: the photoexcitation of molecules which then engage in charge- or energy-transfer to molecular oxygen (O) to initiate ROS production. However, the classical photodynamic approach presents drawbacks, like chemical reactivity of the photosensitizing agent or fast molecular photobleaching due to ROS generation, to name a few. Recently, a new approach, which promises many advantages, has entered the scene: plasmon-driven hot-electron chemistry.