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https://www.readbyqxmd.com/read/28094281/electrically-tunable-organic-inorganic-hybrid-polaritons-with-monolayer-ws2
#1
Lucas C Flatten, David M Coles, Zhengyu He, David G Lidzey, Robert A Taylor, Jamie H Warner, Jason M Smith
Exciton-polaritons are quasiparticles consisting of a linear superposition of photonic and excitonic states, offering potential for nonlinear optical devices. The excitonic component of the polariton provides a finite Coulomb scattering cross section, such that the different types of exciton found in organic materials (Frenkel) and inorganic materials (Wannier-Mott) produce polaritons with different interparticle interaction strength. A hybrid polariton state with distinct excitons provides a potential technological route towards in situ control of nonlinear behaviour...
January 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28087880/direct-synthesis-of-highly-designable-hybrid-metal-hydroxide-nanosheets-using-tripodal-ligands-as-one-size-fits-all-modifiers
#2
Yoshiyuki Kuroda, Tatsuyuki Koichi, Keisuke Muramatsu, Kazuya Yamaguchi, Noritaka Mizuno, Atsushi Shimojima, Hiroaki Wada, Kazuyuki Kuroda
Brucite-type layered metal hydroxides are prepared from diverse metallic elements and have outstanding functions; however, their poor intercalation ability significantly limits their chemical designability and the use of their potentially ultrahigh surface areas and unique properties as two-dimensional nanosheets. Here, we demonstrate that tripodal ligands (R-C(CH2OH)3, R = NH2, CH2OH, or NHC2H4SO3H) are useful as "one-size-fits-all" modifiers for the direct synthesis of hybrid metal hydroxide nanosheets with various constituent metallic elements (M = Mg, Mn, Fe, Co, Ni, or Cu) and surface functional groups...
January 14, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28077510/mitral-implant-of-the-inovare-transcatheter-heart-valve-in-failed-surgical-bioprostheses-a-novel-alternative-for-valve-in-valve-procedures
#3
Diego Felipe Gaia, Ademir Massarico Braz, Matheus Simonato, Danny Dvir, João Roberto Breda, Gustavo Calado Ribeiro, Carolina Baeta Ferreira, José Augusto Marcondes Souza, Enio Buffolo, José Honório Palma
OBJECTIVES: Reoperative procedure for the treatment of a failed mitral bioprosthesis is associated with considerable risk. In some cases, mortality is high and might contraindicate the benefit of the procedure. The minimally invasive valve-in-valve (ViV) transcatheter mitral valve implant offers an alternative less-invasive approach, reducing morbidity and mortality. The objective of this paper was to evaluate the mitral ViV approach using the Braile Inovare prosthesis. METHODS: The transcatheter balloon-expandable Braile Inovare prosthesis was used in 12 cases...
January 10, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28073272/phase-transitions-in-spin-crossover-thin-films-probed-by-graphene-transport-measurements
#4
J Dugay, M Aarts, M Giménez-Marqués, T Kozlova, H W Zandbergen, E Coronado, H S J van der Zant
Future multifunctional hybrid devices might combine switchable molecules and 2D material-based devices. Spin-crossover compounds are of particular interest in this context since they exhibit bistability and memory effects at room temperature while responding to numerous external stimuli. Atomically thin 2D materials such as graphene attract a lot of attention for their fascinating electrical, optical, and mechanical properties, but also for their reliability for room-temperature operations. Here, we demonstrate that thermally induced spin-state switching of spin-crossover nanoparticle thin films can be monitored through the electrical transport properties of graphene lying underneath the films...
January 11, 2017: Nano Letters
https://www.readbyqxmd.com/read/28071057/programmed-transfer-of-sequence-information-into-molecularly-imprinted-polymer-mip-for-hexa-2-2-bithien-5-yl-dna-analog-formation-towards-single-nucleotide-polymorphism-snp-detection
#5
Katarzyna Bartold, Agnieszka Pietrzyk-Le, Tan-Phat Huynh, Zofia Iskierko, Marta I Sosnowska, Krzysztof Noworyta, Wojciech Lisowski, Francesco Maria Enrico Sannicolo, Silvia Cauteruccio, Emanuela Licandro, Francis D'Souza, Wlodzimierz Kutner
A new strategy of simple, inexpensive, rapid, and label-free single nucleotide polymorphism (SNP) detection using robust chemosensors with piezomicrogravimetric (PM), SPR, or capacitive impedimetry (CI) signal transduction is reported. Using these chemosensors, selective detection of a genetically relevant oligonucleotide under FIA conditions within 2 min is accomplished. An invulnerable to non-specific interaction molecularly imprinted polymer (MIP) with electrochemically synthesized probes of hexameric 2,2'-bithien-5-yl DNA analogs discriminating single purine-nucleobase mismatch at room temperature was used...
January 10, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28066676/image-guided-localization-of-small-lung-nodules-in-video-assisted-thoracic-surgery
#6
REVIEW
Ze-Rui Zhao, Rainbow W H Lau, Peter S Y Yu, Randolph H L Wong, Calvin S H Ng
The advancement of imaging technology has recently facilitated single port minimally-invasive thoracic surgery techniques. Cone-beam computed tomography (CBCT) shows promising results in visualizing the target lesion and its surrounding critical anatomy, with an error of less than 2 mm. The integration of CBCT with the operating room (OR) to form the hybrid OR, provides unparalleled real-time imaging of the patient, which can be used with electromagnetic navigation bronchoscopy to confirm successful navigation and increase procedural accuracy particularly for small peripheral pulmonary targets...
October 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28066670/image-guided-thoracoscopic-surgery-with-dye-localization-in-a-hybrid-operating-room
#7
Shun-Mao Yang, Wei-Chun Ko, Mong-Wei Lin, Hsao-Hsun Hsu, Chih-Yang Chan, I-Hui Wu, Yeun-Chung Chang, Jin-Shing Chen
BACKGROUND: The rate of detection of small pulmonary nodules (SPNs) has increased. Thoracoscopic resection following image-guided localization had been a reliable alternative in their treatment. We present our experience with image-guided dye localization using robotic C-arm computed tomography (CT) followed by immediate video-assisted thoracoscopic surgery (VATS) for SPNs in a hybrid operating room (OR). METHODS: From July 2015 to July 2016, 25 consecutive patients with SPNs smaller than 2 cm underwent robotic C-arm CT-guided blue dye tattooing followed by immediate VATS in a hybrid OR...
October 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28059316/all-optical-tuning-of-eit-like-dielectric-metasurfaces-by-means-of-chalcogenide-phase-change-materials
#8
E Petronijevic, C Sibilia
Electromagnetically induced transparency (EIT) is a pump-induced narrowband transparency window within an absorption line of the probe beam spectrum in an atomic system. In this paper we propose a way to bring together the all-dielectric metamaterials to have EIT-like effects and to optically tune the response by hybridizing them with a layer of a phase change material. We propose a design of the metamaterial based on Si nanoresonators that can support an EIT-like resonant response. On the top of the resonators we consider a thin layer of a chalcogenide phase change material, which we will use to tune the optical response...
December 26, 2016: Optics Express
https://www.readbyqxmd.com/read/28054899/there-are-a-lot-of-things-they-didn-t-tell-me-when-i-signed-on-helping-trainees-land-a-first-job
#9
Curt Tribble Md
During my training and my early faculty tenure, there was a picture of a dust-caked, grizzled cowboy that hung between the two primary cardiac operating rooms. Beneath the picture was written, "There are a lot of things about this job they didn't tell me when I signed on." When we moved into our new hospital, the picture did not resurface. However, I never forgot the lesson conveyed by that picture. One of the most important obligations faculty members have is to help their trainees find a job. While their trainees have likely had part-time jobs and, of course, they've held training positions, they usually have not had a 'real' job before...
December 15, 2016: Heart Surgery Forum
https://www.readbyqxmd.com/read/28051312/modification-of-tio2-nanoparticles-with-oleyl-phosphate-via-phase-transfer-in-the-toluene-water-system-and-application-of-modified-nanoparticles-to-cyclo-olefin-polymer-based-organic-inorganic-hybrid-films-exhibiting-high-refractive-indices
#10
Shiori Takahashi, Shuhei Hotta, Akira Watanabe, Naokazu Idota, Kimihiro Matsukawa, Yoshiyuki Sugahara
Oleyl-phosphate-modified TiO2 nanoparticles (OP_TiO2) were prepared via phase transfer from an aqueous phase containing dispersed TiO2 nanoparticles to a toluene phase containing oleyl phosphate (OP, a mixture of monoester and diester), and employed for the preparation of OP_TiO2/cyclo-olefin polymer (COP) hybrid films with high-refractive indices. The modification of TiO2 by OP was essentially completed by reaction at room temperature for 8 h, and essentially all the TiO2 nanoparticles in the aqueous phase were transferred to the toluene phase...
January 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28045536/plasmonic-waveguide-integrated-nanowire-laser
#11
Esteban Bermúdez-Ureña, Gozde Tutuncuoglu, Javier Cuerda, Cameron L C Smith, Jorge Bravo-Abad, Sergey I Bozhevolnyi, Anna Fontcuberta I Morral, Francisco J García-Vidal, Romain Quidant
Next-generation optoelectronic devices and photonic circuitry will have to incorporate on-chip compatible nanolaser sources. Semiconductor nanowire lasers have emerged as strong candidates for integrated systems with applications ranging from ultrasensitive sensing to data communication technologies. Despite significant advances in their fundamental aspects, the integration within scalable photonic circuitry remains challenging. Here we report on the realization of hybrid photonic devices consisting of nanowire lasers integrated with wafer-scale lithographically designed V-groove plasmonic waveguides...
January 9, 2017: Nano Letters
https://www.readbyqxmd.com/read/28045240/what-should-we-expect-from-the-hybrid-room
#12
Adrien Hertault, Jonathan Sobocinski, Rafaëlle Spear, Richard Azzaoui, Matthieu Delloye, Dominique Fabre, Stephan Haulon
The concept of hybrid room was defined as an optimized surgical theater, offering the best compromise between asepsis criteria from standard surgical rooms and high quality imaging equipment from fixed radiological suites. This review aimed at summarizing what vascular surgeons should expect from hybrid rooms in daily practice and in the near future.
January 3, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28028750/early-clinical-experience-with-the-da-vinci-xi-surgical-system-in-general-surgery
#13
Monika E Hagen, Minoa K Jung, Frederic Ris, Jassim Fakhro, Nicolas C Buchs, Leo Buehler, Philippe Morel
The da Vinci Xi Surgical System (Intuitive Surgical Inc., Sunnyvale, CA, USA) has been released in 2014 to facilitate minimally invasive surgery. Novel features are targeted towards facilitating complex multi-quadrant procedures, but data is scarce so far. Perioperative data of patients who underwent robotic general surgery with the da Vinci Xi system within the first 6 month after installation were collected and analyzed. The gastric bypass procedures performed with the da Vinci Xi Surgical System were compared to an equal amount of the last procedures with the da Vinci Si Surgical System...
December 27, 2016: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28001361/flexible-organic-inorganic-hybrid-field-effect-transistors-with-high-performance-and-operational-stability
#14
Abhishek S Dahiya, Charles Opoku, Guylaine Poulin-Vittrant, Nicolas Camara, Christophe Daumont, Eric G Barbagiovanni, Giorgia Franzò, Salvo Mirabella, Daniel Alquier
The production of high-quality semiconducting nanostructures with optimized electrical, optical, and electromechanical properties is important for the advancement of next-generation technologies. In this context, we herein report on highly obliquely aligned single-crystalline zinc oxide nanosheets (ZnO NSs) grown via the vapor-liquid-solid approach using r-plane (01-12) sapphire as the template surface. The high structural and optical quality of as-grown ZnO NSs has been confirmed using high-resolution transmission electron microscopy and temperature-dependent photoluminescence, respectively...
December 21, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27998131/ingan-based-light-emitting-diodes-grown-on-a-micro-nanoscale-hybrid-patterned-sapphire-substrate
#15
Wen-Cheng Ke, Fang-Wei Lee, Chih-Yung Chiang, Zhong-Yi Liang, Wei-Kuo Chen, Tae-Yeon Seong
A hybrid patterned sapphire substrate (hybrid-PSS) was prepared using an anodic aluminum oxide etching mask to transfer nanopatterns onto a conventional patterned sapphire substrate with microscale patterns (bare-PSS). The threading dislocation (TD) suppression of light-emitting diodes (LEDs) grown on a hybrid-PSS (HP-LED) exhibits a smaller reverse leakage current compared with that of LEDs grown on a bare-PSS (BP-LED). The strain-free GaN buffer layer and fully strained InGaN active layer were evidenced by cross-sectional Raman spectra and reciprocal space mapping of the X-ray diffraction intensity for both samples...
December 21, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27998104/ppy-mil-100-nanoparticles-as-a-ph-and-near-ir-irradiation-responsive-drug-carrier-for-simultaneous-photothermal-therapy-and-chemotherapy-of-cancer-cells
#16
Yu-Da Zhu, Su-Ping Chen, Huan Zhao, You Yang, Xiao-Qin Chen, Jing Sun, Hong-Song Fan, Xing-Dong Zhang
A medical nanoplatform with small size, low cost, biocompatibility, good biodegradability, and, in particular, multifunctionality has attracted much attention in the exploration of novel therapeutic methodologies. As an emerging material of self-assembled porous structure, metal-organic frameworks (MOFs) have high expectations because of their special properties compared to traditional porous materials. Therefore, integration of MOFs and functional materials is leading to the creation of new multifunctional composites/hybrids...
December 21, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27991638/modulation-of-phase-separation-at-the-micron-scale-and-nanoscale-in-giant-polymer-lipid-hybrid-unilamellar-vesicles-ghuvs
#17
Thi Phuong Tuyen Dao, Fabio Fernandes, Emmanuel Ibarboure, Khalid Ferji, Manuel Prieto, Olivier Sandre, Jean-François Le Meins
Phase separation in giant polymer/lipid hybrid unilamellar vesicles (GHUVs) has been described over the last few years. However there is still a lack of understanding on the physical and molecular factors governing the phase separation in such systems. Among these parameters it has been suggested that in analogy to multicomponent lipid vesicles hydrophobic mismatches as well as lipid fluidity play a role. In this work, we aim to map a global picture of phase separation and domain formation in the membrane of GHUVs by using various copolymers based on poly(dimethylsiloxane) (PDMS) and poly(ethylene glycol) (PEO) with different architectures (grafted, triblock) and molar masses, combined with phospholipids in the fluid (POPC) or gel state (DPPC) at room temperature...
January 18, 2017: Soft Matter
https://www.readbyqxmd.com/read/27990512/warfarin-genotyping-with-hybridization-induced-aggregation-on-a-poly-ethylene-terephthalate-microdevice
#18
Hillary S Sloane, Morgan B Carter, Alexa E C Cecil, Delphine Le Roux, Daniel L Mills, James P Landers
Warfarin, a commonly prescribed oral anticoagulant, is burdened by a narrow therapeutic index and high inter-individual variability in response, making it the second leading cause of drug-related emergency room visits. Since genetic factors contribute significantly to warfarin sensitivity, a genotype-guided dosing strategy may reduce the occurrence of adverse events. While numerous methods have been demonstrated for warfarin genotyping, the specifications of most assays with respect to turnaround time and cost are not ideal for routine testing...
December 19, 2016: Analyst
https://www.readbyqxmd.com/read/27987869/minor-polysaccharidic-constituents-from-the-red-seaweed-hypnea-musciformis-appearance-of-a-novel-branched-uronic-acid
#19
Vanina A Cosenza, Diego A Navarro, Carlos A Stortz
Two polysaccharide fractions isolated from Hypnea musciformis after room temperature- and hot water extraction, soluble after KCl precipitation of the more abundant carrageenans, were subfractionated by ion-exchange chromatography eluting with increasing concentrations of NaCl. The lowest NaCl concentration (0.2M) eluted agarans. The dl-hybrids (or mixtures) eluted at intermediate concentrations of NaCl. The d/l-galactose ratio and the sulfate proportion increased with the NaCl concentration. Different types of substitution were present, mainly at C-3 with sulfate, Xyl and methylated Gal stubs, as well as low amounts of 3,6-AnGal...
February 10, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/27987034/retrograde-suction-decompression-of-a-large-internal-carotid-aneurysm-using-a-balloon-guide-catheter-combined-with-a-blood-returning-circuit-and-sta-mca-bypass-a-technical-note
#20
Fumihiro Matano, Takayuki Mizunari, Shushi Kominami, Masanori Suzuki, Yu Fujiki, Asami Kubota, Shiro Kobayashi, Yasuo Murai, Akio Morita
It is difficult to treat large internal carotid aneurysms with simple surgical clipping. Here, we present a retrograde suction decompression (RSD) procedure for large internal carotid aneurysms using a balloon guide catheter combined with a blood-returning circuit and a superficial temporal artery to middle cerebral artery (STA-MCA) bypass.All patients underwent an STA-MCA bypass before the temporary occlusion of the internal carotid artery (ICA). A 6-French sheath was inserted into the common carotid artery (CCA), and a 6-French Patrive balloon catheter was placed into the ICA 5 cm past the bifurcation...
December 16, 2016: Neurosurgical Review
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