BIOACTIVE METABOLITES OF THE STEM BARK OF STRYCHNOS AFF. DARIENENSIS AND EVALUATION OF THEIR ANTIOXIDANT AND UV PROTECTION ACTIVITY IN HUMAN SKIN CELL CULTURES

The genus Strychnos (Loganiaceae) is well-known as a rich source of various bioactive metabolites.In continuation of our phytochemical studies on plants from Amazonia, we examined Strychnos aff.darienensis, collected in Peru.This species has been traditionally used in South America and is still presently used as a drug by the Yanesha tribe in Peru.

Nanoparticles have been used as ilootpaperie signal transducers for optical readouts in biosensors.Optical approaches are cost-effective with easy readout formats for clinical diagnosis.We present a glucose biosensor based on the biocatalytic shape-altering of gold nanostars via silver deposition.Improved sensitivity was observed due to the nanosta

Vehicles positioned at varying locations in the here platoon exhibit differing levels of energy consumption, which may result in the platoon breaking up during travel or even prevent successful formation of the platoon.To solve this problem, a vehicle platooning scheme based on two-way auction was proposed.Specifically, the positions in the vehicle