Conjugation of Transferrin to Azide-Modified CdSe/ZnS Core-Shell Quantum Dots using Cyclooctyne Click Chemistry
作者:Christine Schieber、Alessandra Bestetti、Jet Phey Lim、Anneke D. Ryan、Tich-Lam Nguyen、Robert Eldridge、Anthony R. White、Paul A. Gleeson、Paul S. Donnelly、Spencer J. Williams、Paul Mulvaney
DOI:10.1002/anie.201202876
日期:2012.10.15
Twinkle twinkle quantumdot: Conjugation of biomolecules to azide‐modified quantumdots (QDs) through a bifunctional linker, using strain‐promoted azide–alkyne cycloaddition with the QD and a squaramide linkage to the biomolecule (see scheme). Transferrin‐conjugated QDs were internalized by transferrin‐receptor expressing HeLa cells.
[EN] BICYCLO[6.1.0]NON-4-YNE COMPOUNDS SUITABLE FOR USE AS LINKERS IN BIOLOGICAL APPLICATIONS<br/>[FR] COMPOSÉS DE BICYCLO[6.1.0]NON-4-YNE CONÇUS POUR ÊTRE UTILISÉS COMME LIEURS DANS DES APPLICATIONS BIOLOGIQUES
申请人:UNIV MELBOURNE
公开号:WO2013181697A1
公开(公告)日:2013-12-12
The present invention relates to compounds that can be used link substrates to molecules, typically for biological applications such as imaging and the like. The compounds contain a cyclooctyne which is joined, via a linking group, to a moiety such as a squarate, amine, aminooxy, hydrazide, semicarbazide or carbohydrazide. The cyclooctyne moiety acts as the coupling partner to an azide-functionalised substrate or molecule, whilst the other moiety acts as the coupling partner to an amine-, aldehyde- or ketone-functionalised molecule or substrate. The invention therefore also relates to processes of synthesis of such compounds and further use of the compounds to link a substrate to a molecule.
A Covalent Approach for Site-Specific RNA Labeling in Mammalian Cells
作者:Fahui Li、Jianshu Dong、Xiaosong Hu、Weimin Gong、Jiasong Li、Jing Shen、Huifang Tian、Jiangyun Wang
DOI:10.1002/anie.201410433
日期:2015.4.7
Advances in RNA research and RNA nanotechnology depend on the ability to manipulate and probe RNA with high precision through chemical approaches, both in vitro and in mammaliancells. However, covalentRNAlabeling methods with scope and versatility comparable to those of current protein labeling strategies are underdeveloped. A method is reported for the site‐ and sequence‐specific covalentlabeling of RNAs
incorporated with a cycloalkyne moiety, from the corresponding azides is developed. Treatment of diynes bearing strained and terminal alkyne moieties with a copper salt enabled terminal alkyne-selective clickconjugation with azides, whereas a more azidophilic strained alkyne moiety was transiently protected from the clickreaction via complexation with copper.
Facile one-pot synthesis of cyclic peptide-conjugated photosensitisers for targeted photodynamic therapy
作者:Jacky C. H. Chu、Caixia Yang、Wing-Ping Fong、Clarence T. T. Wong、Dennis K. P. Ng
DOI:10.1039/d0cc05264g
日期:——
situ cyclisation of peptides and conjugation with functional boron dipyrromethenes (BODIPYs) has been developed. Linear peptides with up to 16 amino acid residues can be cyclised effectively and the resulting conjugates can be isolated in higher than 20% yield. One of the conjugates having a cyclic RGD moiety has been studied both in vitro and in vivo. It exhibits high and selective affinity towards the