Search results for "Elea"

showing 10 items of 772 documents

Effectiveness of Physical Therapy in Patients with Tension-type Headache: Literature Review

2014

Background: Tension-type headache (TTH) is a disease with a great incidence on quality of life and with a significant socioeconomic impact. Objectives: The aim of this review is to determine the effectiveness of physical therapy by using manual therapy (MT) for the relief of TTH. Data sources: A review was done identifying randomized controlled trials through searches in MEDLINE, PEDro, Cochrane and CINAHL (January 2002 – April 2012). Study selection: English-language studies, with adult patients and number of subjects not under 11, diagnosed with episodic tension-type headache (ETTH) and chronic tension-type headache (CTTH) were included. Data extraction: Initial search was undertaken with…

Myofascial trigger pointmedicine.medical_specialtyMassageFisioteràpiabusiness.industryJoint mobilizationPhysical Therapy Sports Therapy and Rehabilitationmedicine.diseaseCounterstrainSpinal manipulationlaw.inventionMyofascial releaseRandomized controlled triallawmedicinePhysical therapyOriginal ArticleManual therapybusinessJournal of the Japanese Physical Therapy Association
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Acetylcholinesterase-Capped Mesoporous Silica Nanoparticles That Open in the Presence of Diisopropylfluorophosphate (a Sarin or Soman Simulant)

2016

Mesoporous silica nanoparticles loaded with rhodamine B and capped with acetylcholinesterase are able to be selectively opened and deliver their cargo in the presence of nerve agent simulant diisopropyl fluorophosphate (DFP).

NANOCAPSULESRESPONSIVE CONTROLLED-RELEASESarinGATED MATERIALSNanoparticle02 engineering and technologyCHEMICAL WARFARE AGENTS010402 general chemistry01 natural sciencesBiochemistryNanocapsuleschemistry.chemical_compoundQUIMICA ORGANICADESIGNSomanmedicineRhodamine BOrganic chemistryDRUG-DELIVERYPhysical and Theoretical ChemistryNerve agentNANOCONTAINERSChemistryQUIMICA INORGANICAOrganic ChemistryDNAMesoporous silica021001 nanoscience & nanotechnologyGUEST MOLECULES0104 chemical sciencesDiisopropyl fluorophosphateDCNP0210 nano-technologymedicine.drugNuclear chemistryOrganic Letters
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Biogenic iron-silver nanoparticles inhibit bacterial biofilm formation due to Ag+ release as determined by a novel phycoerythrin-based assay

2020

Silver nanoparticles (Ag-NPs) can be considered as a cost-effective alternative to antibiotics. In the presence of Fe(III)-citrate and Ag+, Klebsiella oxytoca DSM 29614 produces biogenic Ag-NPs embedded in its peculiar exopolysaccharide (EPS). K. oxytoca DSM 29614 was cultivated in a defined growth medium–containing citrate (as sole carbon source) and supplemented with Ag+ and either low or high Fe(III) concentration. As inferred from elemental analysis, transmission and scanning electron microscopy, Fourier transform infrared spectrometry and dynamic light scattering, Ag-EPS NPs were produced in both conditions and contained also Fe. The production yield of high-Fe/Ag-EPS NPs was 12 times …

Nanoparticle production yieldNanoparticleBacterial exopolysaccharide; Biofilm formation inhibition; Biogenic bimetal nanoparticles; Nanoparticle production yield; Phycoerythrin fluorescence–based assay; Silver ion release;Biogenic bimetal nanoparticlesSettore BIO/19 - Microbiologia GeneraleApplied Microbiology and BiotechnologySilver nanoparticleNOBacterial exopolysaccharide; Biofilm formation inhibition; Biogenic bimetal nanoparticles; Nanoparticle production yield; Phycoerythrin fluorescence–based assay; Silver ion release03 medical and health scienceschemistry.chemical_compoundDynamic light scatteringBiofilm formation inhibitionPhycoerythrin fluorescence–based assay030304 developmental biology0303 health sciencesGrowth mediumbiology030306 microbiologySilver ion releaseBiofilmKlebsiella oxytocaGeneral Medicinebiology.organism_classificationFluorescenceBacterial exopolysaccharidechemistryYield (chemistry)BiotechnologyNuclear chemistry
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Single cigar-shaped nanopores functionalized with amphoteric amino acid chains: experimental and theoretical characterization.

2012

We present an experimental and theoretical characterization of single cigar-shaped nanopores with pH-responsive carboxylic acid and lysine chains functionalized on the pore surface. The nanopore characterization includes (i) optical images of the nanostructure obtained by FESEM; (ii) different chemical procedures for the nanopore preparation (etching time and functionalizations; pH and electrolyte concentration of the external solution) allowing externally tunable nanopore responses monitored by the current-voltage (I-V) curves; and (iii) transport simulations obtained with a multilayer nanopore model. We show that a single, approximately symmetric nanopore can be operated as a reconfigurab…

NanoporeRe-configurablePHAmino acid chainsEtching timeElectrical signalCarboxylic AcidsGeneral Physics and AstronomyFunctionalizationsElectrolytePore surfaceElectrochemistryFunctionalizedCarboxylic acidOptical imageNanoporesElectric conductivityI - V curveElectrochemistryGeneral Materials ScienceTheoretical modelRectifying behaviorsFundamental conceptsRectifying propertiesSurface propertyGeneral EngineeringHydrogen-Ion ConcentrationCigar-shaped nanoporeCharacterization (materials science)Data processingChemistryNanoporeAmino acidsIon channelTransport simulationIodineLogic functionsNanostructureMaterials scienceLogicSurface PropertiesCharacterizationNanotechnologyTunabilitiesArticleDrug controlled releaseElectrical resistivity and conductivityEtchingTransport processPH-responsiveCurrent voltage curveDiodeChemical proceduresCarboxylic acidsLysineElectric ConductivityModels TheoreticalGeometrical opticsNanostructuresAmphoteric amino acid chainsCurrent-voltage curvesExternal solutionsFISICA APLICADAElectrolyte concentrationACS nano
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CURCUMIN ENTRAPPED INTO LIPID NANOSYSTEMS IMPROVES INHIBITION OF NEUROBLASTOMA CANCER CELL GROWTH ACTIVATING HSP70 PROTEIN

2010

Nanostructured Lipid Carriers Curcumin Drug release Human neuroblastoma cells Hsp70 protein CancerSettore CHIM/09 - Farmaceutico Tecnologico Applicativo
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Nanohydrogel Formation within the Halloysite Lumen for Triggered and Sustained Release

2018

An easy strategy to obtain nanohydrogels within the halloysite nanotube (HNTs) lumen was investigated. Inorganic reverse micelles based on HNTs and hexadecyltrimethylammonium bromides were dispersed in chloroform, and the hydrophilic cavity was used as a nanoreactor to confine the gel formation based on alginate cross-linked by calcium ions. Spectroscopy and electron microscopy experiments proved the confinement of the polymer into the HNT lumen and the formation of calcium-mediated networks. Biological tests proved the biocompatibility of the hybrid hydrogel. The nanogel in HNTs was suitable for drug loading and sustained release with the opportunity of triggered burst release by chemical …

NanotubeMaterials scienceBiocompatibilityChlorine compound02 engineering and technologyNanoreactorHexadecyl trimethyl ammonium bromideengineering.materialHybrid hydrogel010402 general chemistry01 natural sciencesMicelleHalloysiteSustained release Drug deliveryAdsorptionKaoliniteHalloysite nanotube (HNTs)Chemical stimuliGeneral Materials ScienceControlled drug deliveryBiological testSettore CHIM/02 - Chimica Fisicachemistry.chemical_classificationTargeted drug deliveryCrosslinkingReverse micellePolymer021001 nanoscience & nanotechnology0104 chemical sciencesChemical engineeringchemistryYarn Biological applicationengineeringBiocompatibilityCalcium0210 nano-technologyMicelleNanogelACS Applied Materials & Interfaces
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Halloysite Nanotubes: Controlled Access and Release by Smart Gates

2017

© 2017 by the authors. Licensee MDPI, Basel, Switzerland. Hollow halloysite nanotubes have been used as nanocontainers for loading and for the triggered release of calcium hydroxide for paper preservation. A strategy for placing end-stoppers into the tubular nanocontainer is proposed and the sustained release from the cavity is reported. The incorporation of Ca(OH) 2 into the nanotube lumen, as demonstrated using transmission electron microscopy (TEM) imaging and Energy Dispersive X-ray (EDX) mapping, retards the carbonatation, delaying the reaction with CO 2 gas. This effect can be further controlled by placing the end-stoppers. The obtained material is tested for paper deacidification. We…

NanotubeMaterials scienceGeneral Chemical EngineeringCarbonation02 engineering and technologyengineering.material010402 general chemistry01 natural sciencesHalloysiteArticlelcsh:Chemistrychemistry.chemical_compoundControlled releaseGeneral Materials ScienceComposite materialCelluloseSettore CHIM/02 - Chimica FisicaNanocompositeNanocompositeCalcium hydroxideNanocontainerHalloysiteCellulose; Controlled release; Halloysite; Nanocomposite021001 nanoscience & nanotechnologyControlled release0104 chemical scienceslcsh:QD1-999chemistryCarbonatationengineeringhalloysite; nanocomposite; cellulose; controlled release0210 nano-technologyNanomaterials
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Halloysite Nanotube with Fluorinated Lumen: Non-Foaming Nanocontainer for Storage and Controlled Release of Oxygen in Aqueous Media

2014

Halloysite clay nanotubes were selectivity modified by adsorbing perfluoroalkylated anionic surfactants at the inner surface. The modified nanotubes formed kinetically stable dispersions due to the enhanced electrostatic repulsions exercised between the particles. We proved that the modified nanotubes can be used as non-foaming oxygen nanocontainers in aqueous media. The gas release from supersaturated dispersions can be controlled by external stimuli and system composition. In conclusion, we managed to put forward an easy strategy to develop smart materials from natural nanoclays, which can endow important applications like the storage and delivery of gas.

NanotubeMaterials sciencechemistry.chemical_elementengineering.materialSmart materialHalloysiteOxygenBiomaterialsCondensed Matter::Materials ScienceFluorinated surfactantColloid and Surface ChemistryHalloysite; nanoclay; Fluorinated surfactant; Gas solubilizationOrganic chemistryPhysics::Chemical PhysicsComputer Science::DatabasesSettore CHIM/02 - Chimica FisicaSupersaturationNanocontainerHalloysiteControlled releaseSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCondensed Matter::Soft Condensed MatternanoclaychemistryChemical engineeringengineeringGas solubilizationSelectivity
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Opioid switching from and to tapentadol extended release in cancer patients: conversion ratio with other opioids

2013

Objectives: The aim of this exploratory study was to assess the conversion ratios between tapentadol and other opioids in patients requiring an opioid switching. Methods: A prospective study was carried out in a convenience sample of consecutive patients admitted to an acute palliative care unit and a home care unit for a period of 1 year. Patients who were switched from/to tapentadol were selected. The initial ratio between tapentadol and other opioids, expressed as oral morphine equivalents was 1:3.3. The subsequent doses were flexible and were changed to fit the patients’ needs. Pain intensity and distress score were recorded until opioid doses were stable. In all, 37 patients were exami…

NarcoticsPalliative careReceptors Opioid muPainSettore MED/41 - AnestesiologiaOpioidPhenolsNeoplasmsReceptorsmedicineHumansIn patientProspective StudiesCancer painProspective cohort studyConversion ratioAnalgesicsMorphinebusiness.industryMedicine (all)Palliative CareCancerGeneral MedicineTapentadolmedicine.diseaseAnalgesics OpioidTapentadolOpioidmuDelayed-Action PreparationsAnesthesiaCancer pain; Conversion ratio; Opioid switching; Tapentadol; Analgesics Opioid; Delayed-Action Preparations; Humans; Morphine; Narcotics; Neoplasms; Pain; Palliative Care; Phenols; Prospective Studies; Receptors Opioid mu; Medicine (all)Opioid switchingExtended releasebusinessCancer painCancer pain Conversion ratio Opioid switching Tapentadol Analgesiamedicine.drugCurrent Medical Research and Opinion
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Slow release oral morphine versus methadone for the treatment of opioid use disorder

2019

ObjectiveTo assess the efficacy of slow release oral morphine (SROM) as a treatment for opioid use disorder (OUD).DesignSystematic review and meta-analysis of randomised controlled trials (RCTs).Data sourcesThree electronic databases were searched through 1 May 2018: the Cochrane Central Register of Controlled Trials, MEDLINE and EMBASE. We also searched the following electronic registers for ongoing trials: ClinicalTrials.gov, WHO International Clinical Trials Registry Platform, Current Controlled Trials and the EU Clinical Trials Register.Eligibility criteria for selecting studiesWe included RCTs of all durations, assessing the effect of SROM on measures of treatment retention, heroin use…

Narcoticsmedicine.medical_specialtyAddictionAdministration OralCraving1681substance use treatmentHeroin03 medical and health sciences0302 clinical medicineSlow release oral morphine (SROM)Internal medicineOpiate Substitution TreatmentHumansMedicine1506030212 general & internal medicine10. No inequalityAdverse effectRandomized Controlled Trials as TopicMorphinebusiness.industryResearchsubstance misuseopioid use disorderOpioid use disorderGeneral MedicineOpioid-Related Disordersmedicine.disease3. Good healthmeta-analysisClinical trialoral morphineOpioid use disorderReducing heroin useDelayed-Action PreparationsMeta-analysisRelative riskmedicine.symptombusinessMethadone030217 neurology & neurosurgerymedicine.drugMethadoneBMJ Open
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