Imaging cell surface glycosylation in vivo using "double click" chemistry

Diazo group as a new chemical reporter for bioorthogonal labelling of biomolecules

Diazoacetyl groups undergo spontaneous cycloaddition with strained alkenes and alkynes and can be bioorthogonal reporter groups labelling proteins and glycans.

A new route to dithia- and thiaoxacyclooctynes via Nicholas reaction

By using the Nicholas reaction we managed to design a concise synthesis that only uses three steps to build the eight-membered ring. It was also possible to functionalize said alkyne with a fluorophore.

Dual-sugar imaging using isonitrile and azido-based click chemistries

We report the first account of metabolically labelling N-acetylglucosamine, in conjunction with either N-acetylgalactosamine or N-acetylmannosamine using a combination of isonitrile- and azide-based chemistries. With the appropriately labelled fluorescent probe molecules, that react with either the azido or isonitrile groups, the method enabled co-visualisation of cancer cell glycoproteins.