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Goniometry

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https://www.readbyqxmd.com/read/28807566/electrospun-collagen-based-nanofibres-a-sustainable-material-for-improved-antibiotic-utilisation-in-tissue-engineering-applications
#1
Ivan J Hall Barrientos, Eleonora Paladino, Peter Szabó, Sarah Brozio, Peter J Hall, Charles I Oseghale, Melissa K Passarelli, Susan J Moug, Richard A Black, Clive G Wilson, Romana Zelkó, Dimitrios A Lamprou
For the creation of scaffolds in tissue engineering applications, it is essential to control the physical morphology of fibres and to choose compositions which do not disturb normal physiological function. Collagen, the most abundant protein in the human body, is a well-established biopolymer used in electrospinning compositions. It shows high in-vivo stability and is able to maintain a high biomechanical strength over time. In this study, the effects of collagen type I in polylactic acid-drug electrospun scaffolds for tissue engineering applications are examined...
August 11, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28750987/evaluation-of-knee-range-of-motion-correlation-between-measurements-using-a-universal-goniometer-and-a-smartphone-goniometric-application
#2
Rafael Aparecido Dos Santos, Viviane Derhon, Michelle Brandalize, Danielle Brandalize, Luciano Pavan Rossi
BACKGROUND: Goniometers are commonly used to measure range of motion in the musculoskeletal system. Recently smartphone goniometry applications have become available to clinicians. OBJECTIVE: Compare angular measures using a universal goniometer and a smartphone application. METHODS: Thirty four healthy women with at least 20° of limited range of motion regarding knee extension were recruited. Knee flexion angles of the dominant limb were measured with a universal goniometer and the ROM(©) goniometric application for the smartphone...
July 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28750788/autologous-platelet-concentrates-as-treatment-for-avascular-necrosis-of-femoral-head-in-a-dog
#3
Estefanía Parra, Andrea Vergara, Raúl F Silva
Avascular necrosis of the femoral head is a developmental disturbance that generally affects young dogs of small breeds and produces ischemic necrosis of the femoral head resulting in an incongruous and malformed joint. The most common treatment is the excisional arthroplasty of the head and femoral neck. The aim of this study is to describe the treatment of avascular necrosis in a Yorkshire dog using intra-articular injections of autologous platelet concentrate. Evaluations were made at 0, 15, 30, 60, and 120 days of treatment, describing the following parameters: clinical gait analysis, perimetry, goniometry, and radiographic evaluations...
March 2017: Topics in Companion Animal Medicine
https://www.readbyqxmd.com/read/28745494/surface-anchored-thiol-reactive-soft-interfaces-engineering-effective-platforms-for-biomolecular-immobilization-and-sensing
#4
Tugce Nihal Gevrek, Irem Kosif, Amitav Sanyal
Fabrication of anti-biofouling, yet specifically reactive polymeric coatings which undergo facile functionalization with thiol-bearing small molecules and ligands yield effective platforms for biomolecular immobilization and sensing. Poly(ethylene glycol) (PEG) based copolymers containing alkoxysilyl groups to enable surface-anchoring and furan-protected maleimide groups as latent thiol-reactive moieties as side-chains were synthesized. Reactive interfaces were obtained by coating these copolymers onto Si/SiO2 or glass surfaces and activating the maleimide groups to their thiol-reactive forms via thermal treatment...
July 26, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28740988/sandwiched-gold-pnipam-gold-microstructures-for-smart-plasmonics-application-towards-the-high-detection-limit-and-raman-quantitative-measurements
#5
R Elashnikov, D Mares, T Podzimek, V Švorčík, O Lyutakov
A smart plasmonic sensor, comprising a layer of a stimuli-responsive polymer sandwiched between two gold layers, is reported. As a stimuli-responsive material, a monolayer of poly(N-isopropylacrylamide) (PNIPAm) crosslinked globules is used. A quasi-periodic structure of the top gold layer facilitates efficient excitation and serves as a support for plasmon excitation and propagation. The intermediate layer of PNIPAm efficiently entraps targeted molecules from solutions. The sensor structure was optimized for efficient light focusing in the "active" PNIPAm layer...
August 7, 2017: Analyst
https://www.readbyqxmd.com/read/28735233/a-model-system-to-mimic-environmentally-active-surface-film-roughness-and-hydrophobicity
#6
Jacob S Grant, Scott K Shaw
This work presents the development and initial assessment of a laboratory platform to allow quantitative studies on model urban films. The platform consists of stearic acid and eicosane mixtures that are solution deposited from hexanes onto smooth, solid substrates. We show that this model has distinctive capabilities to better mimic a naturally occurring film's morphology and hydrophobicity, two important parameters that have not previously been incorporated into model film systems. The physical and chemical properties of the model films are assessed using a variety of analytical instruments...
October 2017: Chemosphere
https://www.readbyqxmd.com/read/28733044/management-of-displaced-inferior-patellar-pole-fractures-with-modified-tension-band-technique-combined-with-cable-cerclage-using-cable-grip-system
#7
Xu Yang, Qinfen Wu, Chin-Hui Lai, Xin Wang
INTRODUCTION: We present a modified tension band technique combined with cable cerclage using Cable Grip System for the treatment of displaced inferior patellar pole fractures and report the knee functional outcome. PATIENTS AND METHODS: The patients who had had operative treatment of a displaced inferior patellar pole fracture (AO/OTA 34-A1) between December 2013 and December 2015 were studied retrospectively. Eleven consecutive patients had had open reduction and internal fixation with the modified technique using Cable Grip System, of whom, five males and six females with an average age of 60...
July 13, 2017: Injury
https://www.readbyqxmd.com/read/28727103/effects-of-dietary-calcium-fructoborate-supplementation-on-joint-comfort-and-flexibility-and-serum-inflammatory-markers-in-dogs-with-osteoarthritis
#8
A K Price, M R C de Godoy, T A Harper, K E Knap, S Joslyn, Z Pietrzkowski, B K Cross, K B Detweiler, K S Swanson
Our objective was to evaluate the short-term effects of calcium fructoborate (CFB) on gait, joint range of motion, serum inflammatory markers, and owner perception of pain in client-owned dogs. We used 59 osteoarthritic dogs with impairment, with dogs being randomly assigned to 4 treatments: placebo (60 mg fructose; = 15), low dose (69 mg CFB; = 14), high dose (127 mg CFB; = 14), or combination (69 mg CFB, 500 mg glucosamine hydrochloride and 200 mg chondroitin sulfate; = 16). Dogs up to 22.9 kg received 1 capsule/d, while dogs weighing 23 to 50 kg received 2 capsules/d...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28719187/exploring-the-role-of-habitat-on-the-wettability-of-cicada-wings
#9
Junho Oh, Catherine E Dana, Sungmin Hong, Jessica K Román, Kyoo Dong Jo, Je Won Hong, Jonah Nguyen, Donald M Cropek, Marianne Alleyne, Nenad Miljkovic
Evolutionary pressure has pushed many extant species to develop micro/nanostructures that can significantly affect wettability and enable functionalities such as droplet jumping, self-cleaning, antifogging, antimicrobial, and antireflectivity. In particular, significant effort is underway to understand the insect wing surface structure to establish rational design tools for the development of novel engineered materials. Most studies, however, have focused on superhydrophobic wings obtained from a single insect species, in particular, the Psaltoda claripennis cicada...
August 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28637351/tuning-surface-chemistry-of-polyetheretherketone-by-gold-coating-and-plasma-treatment
#10
Zdeňka Novotná, Silvie Rimpelová, Petr Juřík, Martin Veselý, Zdeňka Kolská, Tomáš Hubáček, Jakub Borovec, Václav Švorčík
Polyetheretherketone (PEEK) has good chemical and biomechanical properties that are excellent for biomedical applications. However, PEEK exhibits hydrophobic and other surface characteristics which cause limited cell adhesion. We have investigated the potential of Ar plasma treatment for the formation of a nanostructured PEEK surface in order to enhance cell adhesion. The specific aim of this study was to reveal the effect of the interface of plasma-treated and gold-coated PEEK matrices on adhesion and spreading of mouse embryonic fibroblasts...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28593015/target-range-of-motion-for-rehabilitation-after-total-knee-arthroplasty
#11
Hirotaka Mutsuzaki, Ryoko Takeuchi, Yuki Mataki, Yasuyoshi Wadano
Objective: Postoperative knee range of motion (ROM) is among the most important factors influencing patient satisfaction after total knee arthroplasty (TKA). The purpose of this study was to clarify the time course of improvement in knee ROM up to 12 months after TKA, including intraoperative knee ROM after implantation, and to clarify a target ROM for rehabilitation after TKA. Patients and Methods: In total, 39 knee joints in 26 patients with osteoarthritis who underwent TKA (retaining the posterior cruciate ligament) were evaluated...
May 2017: Journal of Rural Medicine: JRM
https://www.readbyqxmd.com/read/28573575/applications-of-x-ray-micro-beam-for-data-collection
#12
Ruslan Sanishvili, Robert F Fischetti
Micro-diffraction tools for macromolecular crystallography, first developed at the end of 1990s and now an integral part of many synchrotron beamlines, enable some of the experiments which were not feasible just a decade or so ago. These include data collection from very small samples, just a few micrometers in size; from larger, but severely inhomogeneous samples; and from samples which are optically invisible. Improved micro-diffraction tools led to improved signal-to-noise ratio, to mitigation of radiation damage in some cases, and to better-designed diffraction experiments...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28515970/two-dimensional-video-analysis-is-comparable-to-3d-motion-capture-in-lower-extremity-movement-assessment
#13
Stacy A Schurr, Ashley N Marshall, Jacob E Resch, Susan A Saliba
BACKGROUND: Although 3D motion capture is considered the "gold standard" for recording and analyzing kinematics, 2D video analysis may be a more reasonable, inexpensive, and portable option for kinematic assessment during pre-participation screenings. Few studies have compared quantitative measurements of lower extremity functional tasks between 2D and 3D. PURPOSE: To compare kinematic measurements of the trunk and lower extremity in the frontal and sagittal planes between 2D video camera and 3D motion capture analyses obtained concurrently during a SLS...
April 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28498385/polymer-brushes-based-on-plla-b-peo-colloids-for-the-preparation-of-protein-resistant-pla-surfaces
#14
E Mázl Chánová, O Pop-Georgievski, M M Kumorek, O Janoušková, L Machová, D Kubies, F Rypáček
In this study we investigate the formation of protein-resistant polymer surfaces, such as aliphatic polyesters, through the deposition of self-assemblies of amphiphilic poly(l-lactide)-b-poly(ethylene oxide), PLLA-b-PEO, copolymers as stable nanoparticles with a kinetically frozen PLLA core on model PLLA surfaces. The length of the PEO chains in the corona was tuned to achieve polymer brushes capable of preventing protein adsorption on PLA-based biomaterials. The spectroscopic ellipsometry, IR and XPS analysis, contact angle goniometry, and AFM proved that the PEO chains adopted a brush structure and were preferably exposed on the surface...
May 30, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28482596/surface-roughness-in-action-cells-in-opposition
#15
P Slepička, I Michaljaničová, S Rimpelová, V Švorčík
Aim of this work is to study the interaction of krypton fluoride (KrF) excimer laser beam with a biopolymer and creation of new nanostructures with great potential for cell growth guidance. As a substrate we used biocompatible and biodegradable polymer polyhydroxybutyrate, which is frequently used in medicine and drug delivery system. Modification was carried out by KrF laser and method was also supplemented by treatment with Ar(+) plasma. The changes in physico-chemical properties of surface layer were determined by goniometry, gravimetry and X-ray photoelectron spectroscopy (XPS)...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28475307/polymer-brush-functionalized-chitosan-hydrogels-as-antifouling-implant-coatings
#16
Irene Buzzacchera, Mariia Vorobii, Nina Yu Kostina, Andres de Los Santos Pereira, Tomáš Riedel, Michael Bruns, Wojciech Ogieglo, Martin Möller, Christopher J Wilson, Cesar Rodriguez-Emmenegger
Implantable sensor devices require coatings that efficiently interface with the tissue environment to mediate biochemical analysis. In this regard, bioinspired polymer hydrogels offer an attractive and abundant source of coating materials. However, upon implantation these materials generally elicit inflammation and the foreign body reaction as a consequence of protein fouling on their surface and concomitant poor hemocompatibility. In this report we investigate a strategy to endow chitosan hydrogel coatings with antifouling properties by the grafting of polymer brushes in a "grafting-from" approach...
May 12, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28402736/characterization-of-a-diamond-ground-y-tzp-and-reversion-of-the-tetragonal-to-monoclinic-transformation
#17
L M Candido, Lmg Fais, E B Ferreira, S G Antonio, Lap Pinelli
PURPOSE: To characterize the surface of an yttria-stabilized zirconia (Y-TZP) ceramic after diamond grinding in terms of its crystalline phase, morphology, mean roughness (Ra), and wettability as well as to determine a thermal treatment to reverse the resulting tetragonal to monoclinic (t-m) transformation. METHODS AND MATERIALS: Y-TZP specimens were distributed into different groups according to the actions (or no action) of grinding and irrigation. Grinding was accomplished using a diamond stone at a low speed...
July 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28394488/covalent-fluorination-strategies-for-the-surface-modification-of-polydienes
#18
Kevin De Bruycker, Maarten Delahaye, Pieter Cools, Johan Winne, Filip E Du Prez
Nonreactive additives are widely applied to enhance polymer properties but can leach out of the material over time. In this work, two essentially different fluorinated additives bearing a triazolinedione moiety are synthesized and grafted on several polydiene backbones (acrylonitrile-butadiene-styrene, styrene-butadiene, and styrene-isoprene-styrene (SIS) copolymers), either by dip-coating or by reaction in solution. The resulting polymers are analyzed by contact angle goniometry, size exclusion chromatography, and NMR, infrared, and X-ray photoelectron spectroscopy...
June 2017: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/28391753/viability-of-hand-and-wrist-photogoniometry
#19
Clifton G Meals, Rebecca J Saunders, Sameer Desale, Kenneth R Means
BACKGROUND: No goniometric technique is both maximally convenient and completely accurate, although photogoniometry (ie, picture taking to facilitate digital angle measurement) shows promise in this regard. Our purpose was to test the feasibility and reliability of a photogoniometric protocol designed to measure wrist and digit range of motion in general. METHODS: Two independent observers examined a sample of joints in both normal and abnormal hands according to a photogoniometric protocol...
April 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28389132/the-reliability-and-measurement-error-of-protractor-based-goniometry-of-the-fingers-a-systematic-review
#20
Yara E van Kooij, Alexandra Fink, Maria W Nijhuis-van der Sanden, Caroline M Speksnijder
STUDY DESIGN: Systematic review PURPOSE OF THE STUDY: The purpose was to review the available literature for evidence on the reliability and measurement error of protractor-based goniometry assessment of the finger joints. METHODS: Databases were searched for articles with key words "hand," "goniometry," "reliability," and derivatives of these terms. Assessment of the methodological quality was carried out using the Consensus-Based Standards for the Selection of Health Measurement Instruments checklist...
April 4, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
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