Results 71 to 80 of about 107,280 (191)

Polymorphic self-assembly of helical tubules is kinetically controlled [PDF]

open access: yesarXiv, 2022
In contrast to most self-assembling synthetic materials, which undergo unbounded growth, many biological self-assembly processes are self-limited. That is, the assembled structures have one or more finite dimensions that are much larger than the size scale of the individual monomers.
arxiv  

Interplay of packing and flip-flop in local bilayer deformation. How phosphatidylglycerol could rescue mitochondrial function in a cardiolipin-deficient yeast mutant [PDF]

open access: yesBiophys. J. 107(4): 879-890 (2014), 2014
In a previous work, we have shown that a spatially localized transmembrane pH gradient, produced by acid micro-injection near the external side of cardiolipin-containing giant unilamellar vesicles, leads to the formation of tubules that retract after the dissipation of this gradient. These tubules have morphologies similar to mitochondrial cristae. The
arxiv   +1 more source

Macroscopic equations for pattern formation in mixtures of microtubules and motors [PDF]

open access: yes, 2001
Inspired by patterns observed in mixtures of microtubules and molecular motors, we propose continuum equations for the evolution of motor density, and microtubule orientation. The chief ingredients are the transport of motors along tubules, and the alignment of tubules in the process.
arxiv   +1 more source

A biomimetic kidney tubule model [PDF]

open access: yesarXiv, 2020
A critical barrier in the nephrology field is the lack of appropriate in vitro renal tubule models that allow manipulation of various mechanical factors, facilitating studies of disease pathophysiology and drug discovery. Here we report development of a novel in vitro assay system comprised of a renal tubule within an elasto-plastic extracellular ...
arxiv  

Evaluation of dentinal tubule penetration depth and push-out bond strength of AH 26, BioRoot RCS, and MTA Plus root canal sealers in presence or absence of smear layer

open access: yesJournal of Dental Research, Dental Clinics, Dental Prospects, 2018
Background. This study compared the effect of smear layer on the penetration depth and push-out bond strength of various root canal sealers. Methods. A total of 90 extracted human mandibular premolars were assigned into 2 groups: smear layer preserved ...
Sevinç Aktemur Türker   +2 more
semanticscholar   +1 more source

Influence of the EndoActivator Irrigation System on Dentinal Tubule Penetration of a Novel Tricalcium Silicate-Based Sealer

open access: yesDental journal, 2018
This study compared the effects of a conventional endodontic needle with an agitation system on a novel tricalcium silicate-based sealer (NTS) in terms of dentinal tubule penetration and interfacial adaptation to a root canal.
Roula El Hachem   +5 more
semanticscholar   +1 more source

Comparative Morphologic Evaluation and Occluding Effectiveness of Nd: YAG, CO2 and Diode Lasers on Exposed Human Dentinal Tubules: An Invitro SEM Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2016
Introduction: Dentinal hypersensitivity is one of the most common problem, encountered in dental practice but has least predictable treatment outcome.
Mini Saluja   +2 more
doaj   +1 more source

Assessment of LASER- induced precipitation of MTA-nanoparticles on root canal dentin surface

open access: yesBDJ Open
Aim of the study This study aims to evaluate the effectiveness of a 980-nm diode laser in inducing mineral trioxide aggregate (MTA) nanoparticle precipitation on root canal dentin surfaces for dentinal coverage.
Mohammed Hamdi Atteia   +2 more
doaj   +1 more source

Comparative scanning electron microscope analysis of diode laser and desensitizing toothpastes for evaluation of efficacy of dentinal tubular occlusion

open access: yesJournal of Indian Society of Periodontology, 2017
Background: The present study aims to evaluate the efficacy of diode laser alone and in combination with desensitizing toothpastes in occluding dentinal tubules (both partially occluded and completely occluded tubules) by scanning electron microscope ...
Guntakala Vikram Reddy   +5 more
doaj   +1 more source

Comparative Evaluation of Efficacy of Iontophoresis with 0.33% Sodium Fluoride Gel and Diode Laser Alone on Occlusion of Dentinal Tubules [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2017
Introduction: Dentinal Hypersensitivity (DH) is one of the most commonly encountered clinical problems. Literature reveals no specific therapy to satisfactorily eliminate dentinal hypersensitivity. Aim: The aim of this study was to assess and compare
Anup Raghunath Patil   +5 more
doaj   +1 more source

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