High-pressure polymorphism of acetylsalicylic acid (aspirin): Raman spectroscopy

Determination of acetylsalicylic acid in aspirin using Total Fluorescence Spectroscopy

1.0 Introduction: Aspirin is a common over the counter drug. You will develop an analytical method to monitor this in standard capsules and in urine using fluorescence. The analysis of aspirin by spectroscopic means is a common introductory lab. However, modifying this for use with biological materials requires a deeper understanding. One specific problem arises from the fact that many biologic...

High-pressure Raman spectroscopy of graphene

John E. Proctor,1,* Eugene Gregoryanz,1 Konstantin S. Novoselov,2 Mustafa Lotya,3 Jonathan N. Coleman,3 and Matthew P. Halsall4 1School of Physics and Centre for Science at Extreme Conditions, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom 2School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom 3School of Physics, Trinity College D...

lnduction by Aspirin (Acetylsalicylic Acid) and Characterization

Sunflower leaf discs floated on a solution containing aspirin (acetylsalicylic acid) produced a set of new proteins extractable at pH 5.2 and excreted into the intercellular space. More than 80% of the proteins found in the intercellular fluids of induced leaf discs have been identified as pathogenesis-related (PR) proteins by their immunological relationship with tobacco PR proteins. Members o...

High Performance Method for Skin Roughness Detection Using Raman Spectroscopy

Interaction of Aspirin (Acetylsalicylic Acid) with Lipid Membranes

We studied the interaction of Aspirin (acetylsalicylic acid) with lipid membranes using x-ray diffraction for bilayers containing up to 50 mol% of aspirin. From 2D x-ray intensity maps that cover large areas of reciprocal space we determined the position of the ASA molecules in the phospholipid bilayers and the molecular arrangement of the molecules in the plane of the membranes. We present dir...