Global ETD Search
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Showing 1 to 5 of 5 for “"HDDA"”.
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Strategies for the synthesis of bioactive compounds: biomimetic approaches to the Salinosporamides and the hexadehydro-Diels-Alder reaction
… encounter with the hexadehydro-Diels-Alder (HDDA) reaction. The HDDA reaction is a mode of the Diels-Alder reaction that involves [4+2] cycloaddition between a diyne and an alkyne to form aryne reactive intermediate. In Part II we show the scope of substrates that are capable of generating an …
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Characterization of the early stages of long bone regeneration in fractures and critical size defects in Xenopus Laevis
… scaffolds, an artificial polymer scaffold (HDDA) and a protein (zein) scaffold, on regeneration of long bone defects in adult African Clawed Frogs (Xenopus laevis) hind limbs. The HDDA scaffolds loaded with growth factors BMP4 and VEGF and zein scaffolds loaded with growth factors BMP4 and …
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Spontaneity to serendipity: from an enediyne core biosynthetic hypothesis to the hexadehydro-Diels-Alder reaction
… which we have termed a hexadehydro-Diels-Alder (HDDA) reaction, has remained almost entirely unexploited until now. The strategy unites an entirely atom-economical, thermal generation of arynes with their in situ elaboration into a diverse set of polysubstituted benzenoids. HDDA precursor triynes …
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Multi-scale characterization of swine femoral cortical bone and long bone defect repair by regeneration
… scaffolds made of 1,6 hexanediol diacrylate (HDDA) using an innovative three dimensional microfabrication technology called Projection Micro-Stereolithography. Critical size defects were made in one bone of the dual skeletal element hind limb tarsus bone in adult Xenopus laevis frog. HDDA …
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Aerogels and films through free radical polymerization
… to aerogels. Use of 1,6-hexanediol diacrylate (HDDA) or ethyleneglycol dimethacrylate (EGDMA) as molecular crosslinkers induces phase-separation of "live" nanoparticles that react with one another forming a robust, covalently bonded 3D network than can be dried into carbonizable and eventually …