Search results for "Acylhydrazine"

showing 2 items of 2 documents

A new hydrogen bonding motif involved in self-recognition in the solid state by functionalised macrocycles

2011

Self-recognition within the crystal lattices of three functionalised macrocycles results in the formation of arrays of remarkably similar hermaphroditic pairs of macrocycles. In the case of two of the macrocycles containing acylhydrazine substituents, a hitherto unknown recognition pattern is found in the interaction of the hydrazine moiety with crown-ether oxygen atoms.

010405 organic chemistryChemistryHydrogen bondStereochemistryHydrazineAcylhydrazineSolid-stateGeneral ChemistrySelf recognitionCrystal structure010402 general chemistryCondensed Matter Physics01 natural sciences3. Good health0104 chemical scienceschemistry.chemical_compoundOxygen atomPolymer chemistryMoiety[CHIM]Chemical SciencesGeneral Materials Scienceta116ComputingMilieux_MISCELLANEOUS
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MATRICES OF A HYDROPHOBICALLY FUNCTIONALIZED HYALURONIC ACID DERIVATIVE FOR THE LOCOREGIONAL TUMOUR TREATMENT

2015

A hyaluronic acid (HA) derivative bearing octadecylamine and acylhydrazine functionalities has been here employed for the production of a paclitaxel delivering matrix for locoregional chemotherapy. Through a strategy consisting in a powder compression and a plasticization with a mixture water/ethanol, a physically assembled biomaterial, stable in solutions with physiologic ionic strengths, has been produced. Two different drug loading strategies have been adopted, by using paclitaxel as chemotherapic agent, and obtained samples have been assayed in terms of release in enhanced solubility conditions and in vitro and in vivo tumoural cytotoxicity. In particular sample with the best releasing …

MaleMaterials sciencePaclitaxelBiomedical EngineeringMice NudeBiocompatible MaterialsBiochemistryPaclitaxel release matrices hyaluronic acidBiomaterialschemistry.chemical_compoundMiceSubcutaneous TissueIn vivoNeoplasmsHyaluronic acidAnimalsHumansSolubilityHyaluronic AcidCytotoxicityMolecular BiologyCell DeathHydrolysisBody WeightOsmolar ConcentrationAcylhydrazineBiomaterialGeneral MedicineHCT116 CellsImmunohistochemistryXenograft Model Antitumor AssaysIn vitroPaclitaxelchemistrySettore CHIM/09 - Farmaceutico Tecnologico ApplicativoHydrophobic and Hydrophilic InteractionsBiotechnologyBiomedical engineeringNuclear chemistry
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