Search results for "Materials Science"

showing 6 items of 22356 documents

Biodegradable Metal-Organic Framework-Based Microrobots (MOFBOTs).

2020

Microrobots and metal–organic frameworks (MOFs) have been identified as promising carriers for drug delivery applications. While clinical applications of microrobots are limited by their low drug loading efficiencies and the poor degradability of the materials used for their fabrication, MOFs lack motility and targeted drug delivery capabilities. The combination of these two fields marks the beginning of a new era; MOF‐based small‐scale robots (MOFBOTs) for biomedical applications. Yet, biodegradability is a major hurdle in the field of micro‐ and nanoswimmers including small‐scale robots. Here, a highly integrated MOFBOT that is able to realize magnetic locomotion, drug delivery, and selec…

zeolitic imidazolate frameworksMaterials scienceBiomedical EngineeringPharmaceutical ScienceNanotechnology02 engineering and technology010402 general chemistrybiodegradation01 natural sciencesBiomaterialsmetal–organic frameworksDrug Delivery SystemsNeoplasmsHumansMetal-Organic FrameworksBiodegradable metal021001 nanoscience & nanotechnologyControlled release0104 chemical sciencesMagnetic FieldsTargeted drug deliverySelective degradationDoxorubicindrug deliveryDrug deliverybiodegradation; drug delivery; metal–organic frameworks; microrobots; zeolitic imidazolate frameworksChemotherapeutic drugs0210 nano-technologymicrorobotsAdvanced healthcare materials
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Efficient zinc incorporation into hydroxyapatite through crystallization of an amorphous phase could extend the properties of zinc apatites

2013

zinc:TECHNOLOGY::Materials science [Research Subject Categories]hydroxyapatiteantimicrobial resistanceamorphous calcium phosphate
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Photoluminescence properties of S2 molecule trapped in Melanophlogite

2015

We studied the photoluminescence properties of a sample of SiO2-clathrate Melanophlogite, a crystalline microporous material which is found in nature as a rare mineral. Upon β irradiation, the material displays an intense light emission under near-UV illumination. We studied in detail this optical activity by steady-state and time-resolved photoluminescence measurements as a function of temperature. The spectroscopic properties we find can be ascribed to a population of quasi-free molecules trapped within each of the two different types of cage available in the structure of this clathrate, although the spectroscopic properties of the guest molecules are affected by their interactions with t…

β IrradiationPhotoluminescenceClathrate hydratePopulation02 engineering and technologyengineering.material010402 general chemistry01 natural sciencesGeochemistry and PetrologyMoleculeGeneral Materials ScienceClathrateeducationPhotoluminescenceeducation.field_of_studyS2 moleculeChemistryMicroporous material021001 nanoscience & nanotechnology0104 chemical sciencesChemical physicsMelanophlogiteMelanophlogiteExcited stateengineeringLight emissionMaterials Science (all)Atomic physics0210 nano-technology
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Crystal structures of 4-chloro-pyridine-2-carbo-nitrile and 6-chloro-pyridine-2-carbo-nitrile exhibit different inter-molecular π-stacking, C-H⋯Nnitr…

2015

The crystal structures of two chloro­cyano­pyridines, namely 4-chloro­pyridine-2-carbo­nitrile and 6-chloro­pyridine-2-carbo­nitrile, exhibit unique inter­molecular C—H⋯Nnitrile, C—H⋯Npyridine and offset face-to-face π-stacking inter­actions.

π-stackingC—H...N interactionscrystal structureNitrileStereochemistrySubstituentStackingSolid-stateCrystal structureC—H⋯N inter­actions010402 general chemistryRing (chemistry)01 natural sciencesResearch Communicationschlorocyanopyridinechemistry.chemical_compoundPyridineGeneral Materials ScienceCrystallography010405 organic chemistryGeneral ChemistryCondensed Matter Physics0104 chemical sciences3. Good healthchloro­cyano­pyridineCrystallographychemistryQD901-999Acta crystallographica. Section E, Crystallographic communications
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Влагопоглощение органопластиком и его влияние на физико-механические свойства материала

1990

Advisor: Максимов Р. Д., Янсон Ю. О.

ПолимерыKompozītmateriāli:TECHNOLOGY::Materials science [Research Subject Categories]PlastmasasОрганопластикиPolimēriКомпозитные материалыPlasticsФизика полимеров
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Механика композитных материалов, 2021, Т. 57, № 4. Июль-Август

2021

анизотропная теория упругости градиентнаяструктуры анизотропных тензоров модулей:TECHNOLOGY::Materials science::Other materials science [Research Subject Categories]спектр краевых задач
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