Search results for "focal"

showing 10 items of 803 documents

Antibacterial Activity of Positively and Negatively Charged Hematite (α-Fe2O3) Nanoparticles to Escherichia coli, Staphylococcus aureus and Vibrio fi…

2021

This research and work has been supported by the European Regional Development Fund within the Activity 1.1.1.2 “Post-doctoral Research Aid” of the Specific Aid Objective 1.1.1 (i.e., “to increase the research and innovative capacity of scientific institutions of Latvia and the ability to attract external financing, investing in human resources and infrastructure”) of the Operational Programme “Growth and Employment” (No. 1.1.1.2/VIAA/2/18/331).

surface chargeGeneral Chemical EngineeringMicrobeJ02 engineering and technologymedicine.disease_causeArticlehematite<i>α</i>-Fe<sub>2</sub>O<sub>3</sub> nanoparticleslcsh:ChemistryAgar plate03 medical and health sciences:NATURAL SCIENCES:Physics [Research Subject Categories]medicineBioluminescenceGeneral Materials ScienceEscherichia colinano-bio interactions030304 developmental biology0303 health sciencesα-Fe2O3 nanoparticlesenvironmental safetybiologyChemistryBioluminescent bacteria021001 nanoscience & nanotechnologybiology.organism_classificationVibriohydrothermal synthesisantibacteriallcsh:QD1-999confocalStaphylococcus aureus0210 nano-technologyAntibacterial activityBacteriaNuclear chemistryNanomaterials
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Electrical Transport and Confocal Raman Studies of Electrochemically Modified Individual Carbon Nanotubes

2003

symbols.namesakeMaterials scienceElectrical transportMechanics of MaterialslawMechanical EngineeringConfocalsymbolsGeneral Materials ScienceNanotechnologyCarbon nanotubeRaman spectroscopylaw.inventionAdvanced Materials
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Optical study of gallium and nitrogen polarity layers of GaN grown on sapphire

2003

A confocal Raman spectroscopic study was carried out on either side of an intentionally grown GaN inversion domain boundary between a pair of strips with opposite (Ga- or N-) polarity. It is shown that the Raman spectra on the N-polarity side displays an A1(TO) mode, prohibited by symmetry considerations, meanwhile on Ga-polarity material this peak is absent, indicating a lower density of defects present in this region. The Raman spectra reveal that in the lateral direction, the change in structural quality accross the inversion domain boundary is rather continuous and extends along 4 ± 1 μm. (© 2003 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

symbols.namesakechemistrylawConfocalAnalytical chemistrysymbolsSapphirechemistry.chemical_elementSTRIPSGalliumRaman spectroscopyNitrogenlaw.inventionphysica status solidi (c)
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Confocal laser scanning microscopy for the study of the morphological changes of the postextraction sites

2012

A better understanding of the remodeling process of postextraction sockets is essential in dental treatment planning. The aim of this study was to evaluate whether confocal laser scanning microscopy (CLSM) can be applied to imaging contour changes of postextraction sites, as well as to its quantification with image analysis of obtained three-dimensional images. This work describes a new application of the CLSM technique. The system used was the OLS3100-USS, LEXT model (Olympus((R))). CLSM was used for the surface analysis of the extraction site. The measurements taken with CLSM were: (1) mesio-distal distance, (2) alveolar ridge thickness, and (3) vestibular and lingual alveolar ridge heigh…

tooth extractionMicroscopy ConfocalHistologyMaterials sciencebusiness.industryfungiDentistryalveolar changesStatistics NonparametricINGENIERIA QUIMICAsocket healingMedical Laboratory TechnologyImaging Three-DimensionalExtraction siteAlveolar ProcessConfocal laser scanning microscopyAlveolar ridgeHumansTooth SocketAnatomybusinessCLSMInstrumentationBiomedical engineeringMicroscopy Research and Technique
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Chirurgia trans-cranica mediante ultrasuoni focalizzati ad alta intensità su guida RM (trans-cranial MRI-guided Focused Ultrasound Surgery, tcMRgFUS)…

2016

Scopo del Lavoro Presentiamo i risultati preliminari ottenuti con la prima istallazione italiana di un’apparecchiatura tcMRgFUS (prima ed unica apparecchiatura al mondo installata su uno scanner RM da 1,5T) per trattamenti di neurochirurgia funzionale in pazienti con tremore essenziale, Parkinson idiopatico unilaterale prevalentemente tremorigeno e dolore neuropatico. Materiali e Metodi Sono stati arruolati pazienti con disordini neurologici resistenti a terapia medica. I pazienti eleggibili sono stati sottoposti ad esame TC ed RM di screening per escludere controindicazioni al trattamento. I trattamenti tcMRgFUS sono stati eseguiti da un gruppo multidisciplinare ottimizzando i parametri di…

ultrasuoni focalizzati disordini del movimento RM talamotomiaSettore MED/37 - NeuroradiologiaSettore MED/36 - Diagnostica Per Immagini E Radioterapia
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Terapia trans-cranica ad ultrasuoni focalizzati guidati da Risonanza Magnetica: studio retrospettivo di semeiotica neuroradiologica intra-operatoria

2019

SCOPO DEL LAVORO: Valutare retrospettivamente le caratteristiche di semeiotica neuroradiologica delle lesioni indotte in pazienti sottoposti a talamotomia unilaterale del nucleo Vim mediante l’utilizzo di un sistema trans-cranico ad ultrasuoni focalizzati guidati da RM (tcMRgFUS). MATERIALI E METODI: Cinquanta pazienti sono stati sottoposti a talamotomia mediante tcMRgFUS per tremore essenziale refrattario a terapia medica (n = 39) o per tremore in malattia di Parkinson (n = 11). Esaminando sequenze FRFSE T2-pesate (2mm, no gap) acquisite sia intra-operatoriamente che nel successivo follow-up RM a 48h, è stata valutata la presenza e le dimensioni delle aree lesionali concentriche precedente…

ultrasuoni focalizzati risonanza magnetica imaging intraoperatorio talamotomia tremore essenziale parkinsonSettore MED/27 - NeurochirurgiaSettore MED/37 - NeuroradiologiaSettore MED/26 - NeurologiaSettore MED/36 - Diagnostica Per Immagini E Radioterapia
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Terapia trans-cranica ad ultrasuoni focalizzati guidati da Risonanza Magnetica (tcMRgFUS) utilizzando un sistema integrato con uno scanner RM da 1.5T…

2018

Scopo Negli ultimi anni la terapia transcranica ad ultrasuoni focalizzati guidati da risonanza magnetica (tcMRgFUS) per il trattamento di disordini neurologici quali il tremore essenziale (ET) e il Parkinson tremorigeno (PD) è stata effettuata utilizzando esclusivamente scanner RM da 3T. Presentiamo i risultati ottenuti con il primo sistema tcMRgFUS mai integrato con uno scanner RM da 1.5T. Materiali e metodi 23 pazienti (19 ET; 4 PD) sono stati selezionati per essere sottoposti a tcMRgFUS (talamotomia monolaterale; target: nucleo ventrale intermedio, VIM). I pazienti arruolati sono stati valutati prima del trattamento e 2 giorni dopo. L'efficacia del trattamento è stata valutata utilizzand…

ultrasuoni focalizzati risonanza magnetica parkinson tremore essenzialeSettore MED/27 - NeurochirurgiaSettore MED/37 - NeuroradiologiaSettore MED/26 - NeurologiaSettore MED/36 - Diagnostica Per Immagini E Radioterapia
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TRANSCRANIAL MAGNETIC RESONANCE-GUIDED FOCUSED ULTRASOUND (TCMRGFUS) CON SCANNER DA 1.5T: NOTA TECNICA

2018

Scopo La terapia dei disordini neurologici mediante tcMRgFUS è stata effettuata utilizzando esclusivamente scanner RM da 3T. Utilizzando uno scanner RM da 1.5T la qualità delle sequenze morfologiche utilizzabili per la pianificazione di questi trattamenti è risultata essere soddisfacente utilizzando la bobina body RF (quella utilizzata con scanner 3T). Tuttavia l'SNR delle sequenze utilizzate per la termometria RM è risultato inferiore allo standard accettabile per i trattamenti. È stata quindi sviluppata una bobina a 2 canali per assicurare un adeguato SNR. Presentiamo il protocollo di imaging efficacemente utilizzato per eseguire procedure tcMRgFUS con il primo sistema mai integrato …

ultrasuoni focalizzati risonanza magnetica signal-to-noise ratioSettore MED/37 - NeuroradiologiaSettore MED/36 - Diagnostica Per Immagini E RadioterapiaSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)
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Peptide-mediated interference with baculovirus transduction

2007

Baculovirus represents a multifunctional platform with potential for biomedical applications including disease therapies. The importance of F3, a tumor-homing peptide, in baculovirus transduction was previously recognized by the ability of F3 to augment viral binding and gene delivery to human cancer cells following display on the viral envelope. Here, F3 was utilized as a molecular tool to expand understanding of the poorly characterized baculovirus-mammalian cell interactions. Baculovirus-mediated transduction of HepG2 hepatocarcinoma cells was strongly inhibited by coincubating the virus with synthetic F3 or following incorporation of F3 into viral nucleocapsid by genetic engineering, th…

virusesBlotting WesternGenetic VectorsBioengineeringSpodopteraGene deliveryBiologyApplied Microbiology and BiotechnologyCell LineTransduction (genetics)Viral envelopeTransduction GeneticViral entryCell Line TumorAnimalsHumansMicroscopy ConfocalGenetic transferViral nucleocapsidRNA-Binding ProteinsBiological TransportGeneral MedicinePhosphoproteinsMolecular biologyCell biologyKineticsCell culturePeptidesBaculoviridaeNucleolinBiotechnologyJournal of Biotechnology
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Occlusion-derived baculovirus: interaction with human cells and evaluation of the envelope protein P74 as a surface display platform.

2008

To develop complementary baculovirus-based tools for gene delivery and display technologies, the interaction of occlusion-derived baculovirus (ODV) with human cells, and the functionality of the P74 ODV envelope protein for display of the IgG-binding Z domains (ZZP74) were evaluated. The cellular binding of ODV was concentration-dependent and saturable. Only minority of the bound virions were internalized at both 37 and 4 degrees C, suggesting usage of direct membrane fusion as the entry mode. The intracellular transport of ODV was confined in vesicular structures peripheral to the plasma membrane, impeding subsequent nuclear entry and transgene expression. Transduction of ODV was not rescu…

virusesBlotting WesternVirus AttachmentBioengineeringBiologyGene deliverySpodopteraApplied Microbiology and BiotechnologyCell Linechemistry.chemical_compoundTransduction (genetics)Viral envelopeMicroscopy Electron TransmissionViral Envelope ProteinsCell Line TumorAnimalsHumansMicroscopy ConfocalfungiLipid bilayer fusionSodium butyrateGeneral MedicineMolecular biologyFusion proteinCell biologyNocodazolechemistryCell cultureElectrophoresis Polyacrylamide GelBaculoviridaeBiotechnologyJournal of biotechnology
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