3-Oxidopyridinium Ions Are Versatile Bioorthogonal Dipoles for Use in Cycloadditions with Cyclooctynes.

3-oxidopyridinium ions are water stable and soluble heteroaromatic betaines that behave as latent dipoles and undergo a wide variety of cycloadditions. Research into the cycloaddition reactions of 3-oxidopyridiniums was spearheaded by Alan R. Katritzky and collaborators from the early 1970s until the late 1980s, but they have yet to be used for bioorthogonal applications.

Optimized Bioorthogonal Non-canonical Amino Acid Tagging to Identify Serotype-Specific Biomarkers in Verotoxigenic .

According to Canada's Food Report Card 2016, there are 4 million foodborne illnesses acquired each year in the nation alone. The leading causes of foodborne illness are pathogenic bacteria such as shigatoxigenic/verotoxigenic (STEC/VTEC) and . Most current detection methods used to identify these bacterial pathogens are limited in their validity since they are not specific to detecting metabolically active organisms, potentially generating false-positive results from non-living or non-viable bacteria.

Photophysical Properties of Donor-Acceptor Stenhouse Adducts and Their Inclusion Complexes with Cyclodextrins and Cucurbit[7]uril.

Donor-acceptor Stenhouse adducts (DASAs) are a novel class of solvatochromic photoswitches with increasing importance in photochemistry. Known for their reversibility between open triene and closed cyclized states, these push-pull molecules are applicable in a suite of light-controlled applications. Recent works have sought to understand the DASA photoswitching mechanism and reactive state, as DASAs are vulnerable to irreversible "dark switching" in polar protic solvents.