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https://www.readbyqxmd.com/read/29099393/filamentous-phages-as-building-blocks-for-reconfigurable-and-hierarchical-self-assembly
#1
Thomas Gibaud
Filamentous bacteriophages such as fd-like viruses are monodisperse rod-like colloids that have well defined properties: diameter, length, rigidity, charge and chirality. Engineering those viruses leads to a library of colloidal rods which can be used as building blocks for reconfigurable and hierarchical self-assembly. Their condensation in aqueous solution with additive polymers which act as depletants to induce attraction between the rods leads to a myriad of fluid-like micronic structures ranging from isotropic/nematic droplets, colloid membranes, achiral membrane seeds, twisted ribbons, $\pi$-wall, pores, colloidal skyrmions, Möbius anchors, scallop membranes to membrane rafts...
November 3, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29098745/prosthodontic-management-of-a-patient-with-moebius-syndrome-a-clinical-report
#2
Ahmed Mahrous, Ghadeer Thalji
Moebius/Mӧbius Syndrome (MS) is an extremely rare congenital disorder characterized by uni- or bilateral palsy of the abducens (VI) and the facial (VII) nerves, causing facial paralysis. Dysfunction of cranial nerves III through XII is common, most often the glossopharyngeal (IX) and hypoglossus (XII). Afflicted individuals seeking prosthodontic care, particularly removable prosthetics, present multiple challenges related to inherent facial and tongue muscle weakness and microstomia. Other extraoral anomalies may include congenital multiple arthrogryposis and malformations of the upper and lower limbs...
November 3, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29062251/a-congenital-cranial-dysinnervation-disorder-m%C3%A3-bius-syndrome
#3
Hatice Mutlu Albayrak, Nuriye Tarakçı, Hüseyin Altunhan, Rahmi Örs, Hüseyin Çaksen
Möbius' syndrome, also known as Möbius' sequence, is a nonprogressive cranial dysinnervation disorder characterized by congenital facial and abducens nerve paralysis. Here, we report a 5-day-old girl who was conceived after in vitro fertilization with poor suck and facial paralysis. She had bilaterally ptosis and lateral gaze limitation, left-sided deviation of the tongue, dysmorphic face, hypoplastic fingers and finger nails on the left hand, and was diagnosed as having Möbius' syndrome. Involvement of other cranial nerves such as three, four, five, nine, 9 and 12, and limb malformations may accompany this syndrome...
September 2017: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/29057888/multitwist-m%C3%A3-bius-strips-and-twisted-ribbons-in-the-polarization-of-paraxial-light-beams
#4
Enrique J Galvez, Ishir Dutta, Kory Beach, Jon J Zeosky, Joshua A Jones, Behzad Khajavi
The polarization of light can exhibit unusual features when singular optical beams are involved. In 3-dimensional polarized random media the polarization orientation around singularities describe 1/2 or 3/2 Möbius strips. It has been predicted that if singular beams intersect non-collinearly in free space, the polarization ellipse rotates forming many-turn Möbius strips or twisted ribbons along closed loops around a central singularity. These polarization features are important because polarization is an aspect of light that mediate strong interactions with matter, with potential for new applications...
October 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29047475/rainbows-by-elliptically-deformed-drops-ii-the-appearance-of-supernumeraries-of-high-order-rainbows-in-rain-showers
#5
Gunther P Können, James A Lock
The appearance of supernumeraries of high-order rainbows in heavy rain showers is explored for rainbows up to order five (p=6). This is done by using a combination of the ray-theory-based first-order Möbius approximation for high-order rainbows with the Airy approximation of the rainbow radiance distribution. We conclude that supernumerary formation of rainbows of order three, four, and five is possible in natural rain showers. Supernumeraries of the third-order and fourth-order rainbows are preferentially formed near the bottom of these rainbows...
July 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/29047474/rainbows-by-elliptically-deformed-drops-i-m%C3%A3-bius-shift-for-high-order-rainbows
#6
James A Lock, Gunther P Können
Using ray theory, the Möbius shift of the (p-1)-order rainbow angle for a particle having an elliptical cross section is obtained to first order in the ellipticity as a function of the tilt of the ellipse with respect to the propagation direction of the incoming rays. The result is then adapted to the geometry of scattering of light rays from the sun by a falling water drop as a function of sun height angle. The variation in the angular spacing between the supernumeraries is determined as a function of location along the rainbow arc, the conditions under which the rainbow angle is insensitive to drop flattening were determined, and the dependence of the Möbius shift on the drop refractive index is shown for rainbows up to fourth order (p=5)...
July 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/29044945/meso-aryl-20-%C3%AF-homoporphyrin-the-simplest-expanded-porphyrin-with-the-smallest-m%C3%A3-bius-topology
#7
K S Anju, Mainak Das, B Adinarayana, Cherumuttathu H Suresh, A Srinivasan
An unstable conjugated homoporphyrin was successfully stabilized by introducing meso-aryl substitutents. It was evident from the moderate diatropic ring current found by NMR analysis that the newly formed 20π conjugated free base and its protonated form exhibited Möbius aromatic character. Furthermore, complexation as a ligand with an Rh(I) ion afforded a unique binding mode and retained the Möbius aromaticity. Overall, these compounds are the smallest Möbius aromatic molecules, as confirmed by spectral and crystal-structure analysis and supported by theoretical studies...
October 17, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/29043338/solvent-driven-azide-induced-mononuclear-discrete-versus-one-dimensional-polymeric-aromatic-m%C3%A3-bius-cadmium-ii-complexes-of-an-n6-tetradentate-helical-ligand
#8
Farhad Akbari Afkhami, Ghodrat Mahmoudi, Atash V Gurbanov, Fedor I Zubkov, Fengrui Qu, Arunava Gupta, Damir A Safin
We report the synthesis and structural characterization of a heteroleptic mononuclear discrete complex [Cd(N3)2(L)(MeOH)]·MeOH (1·MeOH) and a one-dimensional coordination polymer of the composition [Cd3(N3)6(L)]n (2), fabricated from Cd(NO3)2·4H2O and the helical organic ligand benzilbis((pyridin-2-yl)methylidenehydrazone) (L) in the presence of two equivalents of NaN3. The formation of different structures is driven by the solvent. The former complex is formed in the presence of MeOH, while the latter complex is formed in EtOH...
November 7, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29042871/application-of-array-comparative-genomic-hybridization-in-korean-children-under-6-years-old-with-global-developmental-delay
#9
Kyung Yeon Lee, Eunsim Shin
PURPOSE: Recent advancements in molecular techniques have greatly contributed to the discovery of genetic causes of unexplained developmental delay. Here, we describe the results of array comparative genomic hybridization (CGH) and the clinical features of 27 patients with global developmental delay. METHODS: We included 27 children who fulfilled the following criteria: Korean children under 6 years with global developmental delay; children who had at least one or more physical or neurological problem other than global developmental delay; and patients in whom both array CGH and G-banded karyotyping tests were performed...
September 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/29039867/water-soluble-neutral-3-5-diformyl-bodipy-with-extended-fluorescence-lifetime-in-a-self-healable-chitosan-hydrogel
#10
Simin Belali, Ganapathi Emandi, Atillio A Cafolla, Barry O'Connell, Benjamin Haffner, Matthias E Möbius, Alireza Karimi, Mathias O Senge
3,5-Diformyl-4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (3,5-diformyl-BODIPY) can be used as an efficient biofunctional cross-linker to generate a new class of chitosan-based hydrogels with fluorescence resonance energy transfer (FRET) dynamics and good solubility in water. The hydrogel was fully characterized by FT-IR, UV-vis, fluorescence, FE-SEM, AFM, rheology and picosecond time-resolved spectroscopic techniques. The self-healing ability was demonstrated by rheological recovery and macroscopic and microscopic observations...
November 8, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/29034914/local-water-sensing-water-exchange-in-bacterial-photosynthetic-reaction-centers-embedded-in-a-trehalose-glass-studied-using-multiresonance-epr
#11
Anna Nalepa, Marco Malferrari, Wolfgang Lubitz, Giovanni Venturoli, Klaus Möbius, Anton Savitsky
Using isotope labeled water (D2O and H2(17)O) and pulsed W-band (94 GHz) high-field multiresonance EPR spectroscopies, such as ELDOR-detected NMR and ENDOR, the biologically important question of detection and quantification of local water in proteins is addressed. A bacterial reaction center (bRC) from Rhodobacter sphaeroides R26 embedded into a trehalose glass matrix is used as a model system. The bRC hosts the two native radical cofactor ions (primary electron donor) and (primary electron acceptor) as well as an artificial nitroxide spin label site-specifically attached to the surface of the H-protein domain...
October 25, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29016863/a-tubb6-mutation-is-associated-with-autosomal-dominant-non-progressive-congenital-facial-palsy-bilateral-ptosis-and-velopharyngeal-dysfunction
#12
Walid Fazeli, Peter Herkenrath, Barbara Stiller, Antje Neugebauer, Julia Fricke, Ruth Lang-Roth, Gudrun Nürnberg, Michaela Thoenes, Jutta Becker, Janine Altmüller, Alexander E Volk, Christian Kubisch, Raoul Heller
Congenital cranial dysinnervation disorders (CCDDs) comprise a heterogeneous spectrum of diseases characterized by congenital, non-progressive impairment of eye, eyelid and/or facial movements including Möbius syndrome, Duane retraction syndrome, congenital ptosis, and congenital fibrosis of the extraocular muscles. Over the last 20 years, several CCDDs have been identified as neurodevelopmental disorders that are caused by mutations of genes involved in brain and cranial nerve development, e.g. KIF21A and TUBB3 that each plays a pivotal role for microtubule function...
October 15, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28940963/organocatalyzed-photo-atom-transfer-radical-polymerization-of-methacrylic-acid-in-continuous-flow-and-surface-grafting
#13
Gijs Ramakers, Alexander Krivcov, Vanessa Trouillet, Alexander Welle, Hildegard Möbius, Tanja Junkers
The organocatalyzed photo-atom transfer radical polymerization (photoATRP) using 10-phenylphenothiazine as catalyst is studied toward its use in methacrylic acid (MAA) polymerization and surface grafting. The organocatalyzed photoATRP of methyl methacrylate (MMA) is first optimized for continuous flow synthesis in order to assess the livingness of the polymerization. MMA can be polymerized in batch and in flow; however, conversions are limited by the loss of bromine functionality and hence high conversions have to be traded in with increasing dispersities...
September 21, 2017: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/28930886/upper-eyelid-splitting-to-facilitate-the-insertion-of-glaucoma-drainage-devices
#14
Lorraine M Provencher, Keith D Carter, Jeffrey A Nerad, Wallace L M Alward
PURPOSE: To describe a new application for vertical splitting of the upper eyelid, a technique traditionally used for orbital access, in order to facilitate glaucoma drainage device implantation in patients with poor surgical exposure. METHODS: Case series. CASES: We present a case of Möbius syndrome with complete restriction of the extraocular muscles, followed by a case of cicatricial narrowing of the palpebral fissures due to chronic allergic dermatitis...
September 19, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28901136/tren-capped-hexaphyrin-zinc-complexes-interplaying-molecular-recognition-m%C3%A3-bius-aromaticity-and-chirality
#15
Hervé Ruffin, Gildas Nyame Mendendy Boussambe, Thierry Roisnel, Vincent Dorcet, Bernard Boitrel, Stéphane Le Gac
Over the past decade, the hexaphyrin skeleton has emerged as a multifaceted frame exhibiting strong interplay between topology, aromaticity, and metal coordination, opening new research areas beyond porphyrins. However, molecular recognition with hexaphyrins has been underexplored, mainly because of the lack of general synthetic strategies leading to sophisticated molecular hosts. Here we have developed a straightforward approach for capping the heteroannulene frame with tripodal units (e.g., tris(2-aminoethyl)amine [tren]) through postsynthetic modification of a readily accessible meso-(2-aminophenyl) tris-substituted platform...
September 22, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28860567/the-novel-link-between-planar-m%C3%A3-bius-aromatic-and-third-order-nonlinear-optical-properties-of-metal-bridged-polycyclic-complexes
#16
Li Wang, Jinting Ye, Hongqiang Wang, Haiming Xie, Yongqing Qiu
Metal-bridged polcyclic aromatic complexes, exhibiting unusual optical effects such as near-infrared photoluminescence with particularly large Stokes shifts, long lifetimes and aggregation enhancement, have been established as unique "carbonloong chemistry". Herein, the electronic structures, aromaticities, absorption spectra and third order nonlinear optical (NLO) responses of metal-bridged polcyclic aromatic complexes (M = Fe, Re, Os and Ir) are investigated using the density functional theory computations...
August 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28839035/complete-genome-sequence-of-jii-1961-a-bovine-mycobacterium-avium-subsp-paratuberculosis-field-isolate-from-germany
#17
Petra Möbius, Gabriele Nordsiek, Martin Hölzer, Michael Jarek, Manja Marz, Heike Köhler
Mycobacterium avium subsp. paratuberculosis causes Johne's disease in ruminants and was also detected in nonruminant species, including human beings, and in milk products. We announce here the 4.829-Mb complete genome sequence of the cattle-type strain JII-1961 from Germany, which is very similar to cattle-type strains recovered from different continents.
August 24, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28812103/re-expression-of-pro-fibrotic-embryonic-preserved-mediators-in-irradiated-arterial-vessels-of-the-head-and-neck-region
#18
Patrick Möbius, Raimund H M Preidl, Manuel Weber, Kerstin Amann, Friedrich W Neukam, Falk Wehrhan
PURPOSE: Surgical treatment of head and neck malignancies frequently includes microvascular free tissue transfer. Preoperative radiotherapy increases postoperative fibrosis-related complications up to transplant loss. Fibrogenesis is associated with re-expression of embryonic preserved tissue developmental mediators: osteopontin (OPN), regulated by sex-determining region Y‑box 9 (Sox9), and homeobox A9 (HoxA9) play important roles in pathologic tissue remodeling and are upregulated in atherosclerotic vascular lesions; dickkopf-1 (DKK1) inhibits pro-fibrotic and atherogenic Wnt signaling...
November 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28805825/the-processing-and-heterostructuring-of-silk-with%C3%A2-light
#19
Mehra S Sidhu, Bhupesh Kumar, Kamal P Singh
Spider silk is a tough, elastic and lightweight biomaterial, although there is a lack of tools available for non-invasive processing of silk structures. Here we show that nonlinear multiphoton interactions of silk with few-cycle femtosecond pulses allow the processing and heterostructuring of the material in ambient air. Two qualitatively different responses, bulging by multiphoton absorption and plasma-assisted ablation, are observed for low- and high-peak intensities, respectively. Plasma ablation allows us to make localized nanocuts, microrods, nanotips and periodic patterns with minimal damage while preserving molecular structure...
September 2017: Nature Materials
https://www.readbyqxmd.com/read/28802760/involvement-of-obliquus-capitis-inferior-muscle-in-dystonic-head-tremor
#20
A Schramm, D Huber, C Möbius, A Münchau, Z Kohl, T Bäumer
INTRODUCTION: Head tremor is a common feature in cervical dystonia (CD) and often less responsive to botulinum neurotoxin (BoNT) treatment than dystonic posturing. Ultrasound allows accurate targeting of deeper neck muscles. METHODS: In 35 CD patients with dystonic head tremor the depth and thickness of the splenius capitis (SPL), semispinalis capitis and obliquus capitis inferior muscles (OCI) were assessed using ultrasound. Ultrasound guided EMG recordings were performed from the SPL and OCI...
August 1, 2017: Parkinsonism & related Disorders
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