1027338-06-2Relevant academic research and scientific papers
Site-specific conjugation of ScFvs antibodies to nanoparticles by bioorthogonal strain-promoted alkyne-nitrone cycloaddition
Colombo, Miriam,Sommaruga, Silvia,Mazzucchelli, Serena,Polito, Laura,Verderio, Paolo,Galeffi, Patrizia,Corsi, Fabio,Tortora, Paolo,Prosperi, Davide
, p. 496 - 499 (2012)
Particularly suitable: An N-terminal serine mutant of anti-HER2 scFv antibody was conjugated to polymer-coated magnetofluorescent nanoparticles by strain-promoted alkyne-nitrone cycloaddition. The resulting nanoparticles (see scheme) proved effective in t
Synthesis of 11,12-didehydrodibenzo[a,e]cycloocten-5(6H)-one: A strained eight-membered alkyne
Kornmayer, Stefan C.,Rominger, Frank,Gleiter, Rolf
, p. 2547 - 2552 (2009)
An eight-step synthesis of 11,12-didehydrodibenzo[ a,e]cycloocten-5(6H)-one (10) was developed. The structure of 10 was assigned by spectroscopic means and confirmed by X-ray analysis of its 2,4-dinitrophenylhydrazone derivative. Reaction of the triple bond of 10 with dicarbonyl(h5-cyclopentadienyl)cobalt or dicarbonyl(η5-pentamethylcyclopentadienyl)cobalt gave the corresponding metal-stabilized cyclobutadiene complexes. Georg Thieme Verlag Stuttgart.
Bioorthogonal "labeling after Recognition" Affording an FRET-Based Luminescent Probe for Detecting and Imaging Caspase-3 via Photoluminescence Lifetime Imaging
Dai, Peiling,Huang, Wei,Liu, Shujuan,Song, Linna,Wang, Ling,Wang, Yun,Wu, Qi,Zhang, Kenneth Yin,Zhao, Qiang,Zhu, Hengyu
, p. 1057 - 1064 (2020)
Bis-labeling with a luminescent energy donor/acceptor pair onto biological substrates affords probes which give FRET readouts for the detection of interaction partners. However, the covalently bound luminophores bring about steric hindrance and nonspecific interaction, which probably perturb the biological recognition. Herein, we designed a highly sensitive and specific "labeling after recognition" sensing approach, where luminophore labeling occurred after the biological recognition. Taking the cutting enzyme caspase-3 as an example, we demonstrated the detection of its catalytic activity in solution and apoptotic cells using the tetrapeptide motif Asp-Glu-Val-Asp (DEVD) as the cleavable substrate, and an iridium(III) complex and a rhodamine derivative as the energy donor/acceptor pair. The DEVD tetrapeptide was modified with an azide and a GK-norbornylene groups at the amino and carboxyl terminuses, respectively, which allowed donor/acceptor bis-labeling via two independent catalysis-free bioorthogonal reactions. The phosphorescence lifetime of the iridium(III) complex was quenched upon bis-labeling owing to the intracellular FRET to the rhodamine derivative, and significantly elongated upon the peptide being catalytically cleaved by caspase-3. Interestingly, the sensitivity and efficiency of the lifetime responses were much higher in the "labeling after recognition" sensing approach. Molecular docking analysis showed that the steric hindrance and nonspecific interactions partially inhibited the biological recognition of the DEVD substrate by caspase-3. The imaging of the catalytic activity of caspase-3 in apoptotic cells was demonstrated via photoluminescence lifetime imaging microscopy. Lifetime analysis not only confirmed the occurrence of intracellular bioorthogonal bis-labeling and catalytic cleavage, but also showed the extent to which the two dynamic processes occurred.
Post-assembly derivatization of electrospun nanofibers via strain-promoted azide alkyne cycloaddition
Zheng, Jukuan,Liu, Kaiyi,Reneker, Darrell H.,Becker, Matthew L.
, p. 17274 - 17277,4 (2012)
A primary amine-derivatized 4-dibenzocyclooctynol (DIBO) was used to initiate the ring-opening polymerization of poly(γ-benzyl-l-glutamate) (DIBO-PBLG). This initiator yields well-defined PBLG polymers functionalized with DIBO at the chain termini. The DI
ALKYNES AND METHODS OF REACTING ALKYNES WITH 1,3-DIPOLE-FUNCTIONAL COMPOUNDS
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, (2016/06/28)
1,3-Dipole-functional compounds (e.g., azide functional compounds) can be reacted with certain alkynes in a cyclization reaction to form heterocyclic compounds. Useful alkynes (e.g., strained, cyclic alkynes) and methods of making such alkynes are also di
Monomers and oligonucleotides comprising cycloaddition adduct(s)
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, (2015/12/14)
The invention features compounds of formula (V) or (XII). In one embodiment, the invention relates compounds and processes for conjugating ligand to oligonucleotide. The invention further relates to methods for treating various disorders and diseases such
POLYMERIC STRUCTURES CONTAINING STRAINED CYCLOALKYNE FUNCTIONALITY FOR POST-FABRICATION AZIDEALKYNE CYCLOADDITION FUNCTIONALIZATION
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, (2014/02/16)
A method of creating biocompatible polymeric structures includes the steps of: providing a biocompatible polymer including a strained cycloalkyne end group; forming a polymeric structure from the biocompatible polymer such that the strained cycloalkyne en
STRAIN-PROMOTED CROSSLINKING OF PEG-BASED HYDROGELS VIA COPPER-FREE CYCLOADDITION
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, (2014/02/16)
The present invention is directed to a covalently crosslinked hydrogel comprising the strain-promoted reaction product of an 8-member cycloalkyne functionalized polyalkylene glycol and a multi-arm glycerol exytholate triazide and methods for making them.
Strain-Promoted Alkyne-Azide Cycloadditions (SPAAC) Reveal New Features of Glycoconjugate Biosynthesis
Mbua, Ngalle Eric,Guo, Jun,Wolfert, Margreet A.,Steet, Richard,Boons, Geert-Jan
experimental part, p. 1912 - 1921 (2012/05/04)
We have shown that 4-dibenzocyclooctynol (DIBO), which can easily be obtained by a streamlined synthesis approach, reacts exceptionally fast in the absence of a CuI catalyst with azido-containing compounds to give stable triazoles. Chemical mod
Visualizing metabolically labeled glycoconjugates of living cells by copper-free and fast huisgen cycloadditions
Ning, Xinghai,Guo, Jun,Wolfert, Margreet A.,Boons, Geert-Jan
supporting information; experimental part, p. 2253 - 2255 (2009/02/07)
(Chemical Presented) CuI-free click: 4-Dibenzocyclooctynol reacts, in the absence of a CuI catalyst, exceptionally fast with azido-containing saccharides and amino acids to give stable triazoles. A biotin-modified derivative is ideal
