What comes to mind when you think of fluorine? The sodium fluoride in toothpaste and mouthwash is the typical, everyday example that most people think of, but fluorine plays a large role in many other compounds. Pure fluorine is a highly reactive and poisonous gas, while fluorinated compounds are incredibly stable, fairly nontoxic, and used in many real-life applications.
This study further supports a connection between acid deposition and forest decline. The authors state, "Continued vigilance in the control of acid rain precursors will be needed to correct these problems, and aggressive options to reduce pollution in rapidly industrializing regions of Latin America, Asia, and Africa are warranted."
Paper-Based Blood Typing Device That Reports Patient's Blood Type "in Writing" Li, M.; Tian, J.; Al-Tamimi, M.; Shen, W. Angew. Chem. Int. Ed. 2012 DOI: 10.1002/anie.201201822 Summary: What's your blood type? Chances... Continue Reading →
The cocoons, the silkworm itself, and the produced silk become colored when dye is incorporated into the silkworm feed. The concentration of dye in the produced silk changes based on how hydrophobic the dye is (increasing partition coefficient).
I hope most of us have experienced the wonder of watching fireflies lighting up on a warm summer evening.
Title: Photoreversible Patterning of Biomolecules within Click-Based HydrogelsAuthors: Cole A. DeForest and Kristi S. AnsethJournal: Angewandte Chemie International EditionAffiliation: Chemical & Biological Engineering, University of Colorado and the Howard Hughes Medical Institute Hydrogels have become an important category of materials for studying cell growth and development. Scientists are able to control a variety of their properties... Continue Reading →