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https://www.readbyqxmd.com/read/28931265/diagnostic-and-interventional-optical-angioscopy-in-ex-vivo-carotid-arteries
#1
Luis E Savastano, Neeraj Chaudhary, Carlos Murga-Zamalloa, Michael Wang, Thomas Wang, B Gregory Thompson
BACKGROUND: Angioscopy - or endovascular endoscopy - is a catheter-based technique employing a flexible fiberoptic angioscope to directly visualize arterial lumen. Poor resolution and excessive stiffness of pre-existent angioscopes limited their use clinically. Recent advances resulted in novel fused optical fiber bundle angioscopes with improved flexibility and imaging resolution. Use of these devices in endovascular neurosurgery is still largely unexplored. OBJECTIVE: To evaluate image quality and feasibility of optical angioscopes for diagnostic and interventional neuro-angioscopy in carotid arteries of human cadavers...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28931040/newborn-skin-reflection-proof-of-concept-for-a-new-approach-for-predicting-gestational-age-at-birth-a-cross-sectional-study
#2
Zilma Silveira Nogueira Reis, Gabriela Luiza Nogueira Vitral, Ingrid Michelle Fonseca de Souza, Maria Albertina Santiago Rego, Rodney Nascimento Guimaraes
BACKGROUND: Current methods to assess the gestational age during prenatal care or at birth are a global challenge. Disadvantages, such as low accessibility, high costs, and imprecision of clinical tests and ultrasonography measurements, may compromise health decisions at birth, based on the gestational age. Newborns' organs and tissues can indirectly indicate their physical maturity, and we hypothesized that evolutionary changes in their skin, detected using an optoelectronic device meter, may aid in estimating the gestational age...
2017: PloS One
https://www.readbyqxmd.com/read/28930905/effectiveness-of-early-warming-with-self-warming-blankets-on-postoperative-hypothermia-in-total-hip-and-knee-arthroplasty
#3
Baris B Koc, Martijn G M Schotanus, Jean-Paul A P A C Kollenburg, Maurice J A Janssen, Fabian Tijssen, Edwin J P Jansen
BACKGROUND: Hypothermia is an important complication in joint arthroplasty. Commonly, forced air warming (FAW) devices are used intraoperatively to maintain body temperature in patients undergoing surgery. However, it is believed that these convective warming systems could increase the risk of deep surgical site infections due to disruption of unidirectional downward laminar airflow. Conductive warming devices have no noticeable effect on ventilation airflow. Nevertheless, the effectiveness of the self-warming (SW) blanket, a novel conductive warming device, on postoperative hypothermia in elective joint arthroplasty is unknown...
September 2017: Orthopaedic Nursing
https://www.readbyqxmd.com/read/28930824/evaluating-the-morphology-of-the-left-atrial-appendage-by-a-transesophageal-echocardiographic-3-dimensional-printed-model
#4
Hongning Song, Qing Zhou, Lan Zhang, Qing Deng, Yijia Wang, Bo Hu, Tuantuan Tan, Jinling Chen, Yiteng Pan, Fazhi He
The novel 3-dimensional printing (3DP) technique has shown its ability to assist personalized cardiac intervention therapy. This study aimed to determine the feasibility of 3D-printed left atrial appendage (LAA) models based on 3D transesophageal echocardiography (3D TEE) data and their application value in treating LAA occlusions.Eighteen patients with transcatheter LAA occlusion, and preprocedure 3D TEE and cardiac computed tomography were enrolled. 3D TEE volumetric data of the LAA were acquired and postprocessed for 3DP...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28929814/what-s-new-in-the-diagnosis-of-pancreatic-cancer-a-patent-review-2011-present
#5
Houria Boulaiz, María C Ramos, Carmen Griñán-Lisón, Maria E García-Rubiño, Francisca Vicente, Juan Antonio Marchal
Pancreatic cancer (PC) is the fourth leading cause of cancer-related death in the US with a 5-year survival rate of about 5%. Most patients have advanced metastatic disease mainly due to the lack of an effective early detection, and an extremely poor prognosis. Advancing in the fight against PC requires developing novel observable biomarkers at preclinical stages for early detection. Areas covered: This manuscript is an overview of different PC diagnostic modalities and the latest innovations made to enhance early PC detection through the patents published from 2011 to 2017...
September 20, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/28929772/bismuth-oxychalocogenides-a-new-class-of-ferroelectric-ferroelastic-materials-with-ultra-high-mobility
#6
Menghao Wu, Xiao Cheng Zeng
Atomically thin Bi2O2Se has been recently synthesized and it possesses ultra-high mobility (Nat Nanotech. 2017, 12, 530; Nano Lett. 2017, 17, 3021). Herein, we show first-principles evidence that Bi2O2Se and a related class of bismuth oxychalcogenides, such as Bi2O2S and Bi2O2Te, not only are novel semiconductors with ultra-high mobility but also possesses previously unreported ferroelectricity/ferroelasticity. Such a unique combination of semiconducting with ferroelectric/ferroelastic properties enables bismuth oxychalcogenides to potentially meet a great challenge, that is, integration of room-temperature functional non-volatile memories into future nanocircuits...
September 20, 2017: Nano Letters
https://www.readbyqxmd.com/read/28929599/rutile-tio2-mesocrystals-as-a-novel-sulfur-host-for-high-performance-lithium-sulfur-batteries
#7
Qingqing Sun, Kaixiang Chen, Yubin Liu, Yafeng Li, Mingdeng Wei
Although Lithium-sulfur (Li-S) batteries are one of the most promising rechargeable batteries in energy storage devices, the poor cycling performance of Li-S batteries restricts their potential application. The polar materials can improve the cycling stability due to their inherent strong chemical interaction with polysulfides. Herein, a novel rutile TiO2 mesocrystals (RTMs) was employed as the host of sulfur in Li-S, displaying a stable cycling performance with a capacity retention of 64% and a small average capacity decay rate of 0...
September 19, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28929136/allochroic-thermally-activated-delayed-fluorescence-diodes-through-field-induced-solvatochromic-effect
#8
Chunmiao Han, Chunbo Duan, Weibo Yang, Mingchen Xie, Hui Xu
Allochroic organic light-emitting devices (AOLEDs) characterized by field-dependent emissive color variation are promising as visible signal response units for intelligent applications. Most of the AOLEDs were realized by changing their recombination zones or inter- and intramolecular energy transfer, rendering the limited repeatability, stability, and electroluminescence (EL) performance. We report a novel thermally activated delayed fluorescence (TADF) diode that featured a successive and irreversible emission color change from bluish green to deep blue during voltage increase, which uses the significant influence of host polarity on the emission color of TADF dyes, namely, solvatochromic effect...
September 2017: Science Advances
https://www.readbyqxmd.com/read/28928941/computational-design-of-molecular-motors-as-nanocircuits-in-leishmaniasis
#9
Dipali Kosey, Shailza Singh
Cutaneous leishmaniasis is the most common form of lesihmaniasis, caused by Leishmania major and is spread by the bite of a sandfly .This species infects the macrophages and dendritic cells Due to multi-drug resistance, there is a need for a new therapeutic technique. Recently, a novel molecular motor of Leishmania, Myosin XXI, was classified and characterized. In addition, the drug resistance in this organism has been linked with the overexpression of ABC transporters. Systems biology aims to study the simulation and modeling of natural biological systems whereas synthetic biology deals with building novel and artificial biological parts and devices  Together they have contributed enormously to drug discovery, vaccine design and development, infectious disease detection and diagnostics...
2017: F1000Research
https://www.readbyqxmd.com/read/28926855/a-comparison-of-the-efficacy-of-once-daily-fluticasone-furoate-vilanterole-with-twice-daily-fluticasone-propionate-salmeterol-in-elderly-asthmatics
#10
Yoshihisa Ishiura, Masaki Fujimura, Yasutaka Shiba, Noriyuki Ohkura, Johsuke Hara, Miki Abo, Kazuo Kasahara
Background Asthma in the elderly population has been focused because it affects quality of life and results in a higher hospitalization rate and mortality. Fluticasone furoate (FF)/vilanterole (VI) is a novel inhaled corticosteroids (ICS)/long-acting β2 agonist (LABA) combination being developed for once-daily administration for asthma with greater anti-inflammatory activity and longer duration of bronchidilation. The Ellipta(TM) dry powder inhaler (DPI) has also been available as a new device with high levels of satisfaction and preference...
September 19, 2017: Drug Research
https://www.readbyqxmd.com/read/28926034/controlling-the-ferroelectric-and-resistive-switching-properties-of-a-bifeo3-thin-film-prepared-using-sub-5-nm-dimension-nanoparticles
#11
Mandar M Shirolkar, Jieni Li, Xiaolei Dong, Ming Li, Haiqian Wang
In recent years, BiFeO3 has attracted significant attention as an interesting multiferroic material in the exploration of fundamental science and development of novel applications. Our previous study (Phys. Chem. Chem. Phys.18, 2016, 25409) highlighted the interesting physicochemical features of BiFeO3 of sub-5 nm dimension. The study also accentuated the existence of weak ferroelectricity at sub-5 nm dimensions in BiFeO3. Based on this feature, we have prepared thin films using sub-5 nm BiFeO3 nanoparticles and explored various physicochemical properties of the thin film...
September 19, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28925685/broad-range-electrically-tunable-plasmonic-resonances-of-multilayer-coaxial-nanohole-array-with-electroactive-polymer-wrapper
#12
Ziwei Zhou, Ye Yu, Ningwei Sun, Helmuth Möhwald, Panpan Gu, Liyan Wang, Wei Zhang, Tobias A F Koenig, Andreas Fery, Gang Zhang
Plasmonic assemblies featuring high sensitivity that can be readily shifted by external fields are keys for sensitive and versatile sensing devices. In this paper, novel fast-responsive plasmonic nanocomposite composed of multilayer nanohole array and responsive electrochromic polymer is proposed with plasmonic mode appearance vigorously cycled upon orthogonal electrical stimuli. In this nanocomposite, the coaxially stacked plasmonic nanohole arrays can induce multiple intense Fano resonances, which result from the crosstalk between a broad surface plasmon resonance (SPR) and the designed discrete transmission peaks with ultrahigh sensitivity; while the polymer wrapper could provide the sensitive nanohole array with real-time-varied surroundings of refractive indices upon electrical stimuli...
September 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28925581/advanced-materials-based-on-polymers-and-ionic-liquids
#13
REVIEW
Yuzo Kitazawa, Kazuhide Ueno, Masayoshi Watanabe
Ionic liquids (ILs) are ambient temperature molten salts, which have attracted considerable attention owing to their unique properties. In this contribution, we review advanced materials composed of ILs and polymers for the basis of a new design protocol to fabricate novel materials. As electrolytes for electrochemical devices, cross-linked polymers containing ILs (ion gels) are endowed with functional properties inherited from ILs and mechanical consistency derived from polymers. To create such materials, micro-phase separation of block copolymers and colloidal arrays in the ILs are utilized...
September 19, 2017: Chemical Record: An Official Publication of the Chemical Society of Japan ... [et Al.]
https://www.readbyqxmd.com/read/28924695/charge-splitting-in-situ-recorder-csir-for-real-time-examination-of-plasma-charging-effect-in-finfet-beol-processes
#14
Yi-Pei Tsai, Ting-Huan Hsieh, Chrong Jung Lin, Ya-Chin King
A novel device for monitoring plasma-induced damage in the back-end-of-line (BEOL) process with charge splitting capability is first-time proposed and demonstrated. This novel charge splitting in situ recorder (CSIR) can independently trace the amount and polarity of plasma charging effects during the manufacturing process of advanced fin field-effect transistor (FinFET) circuits. Not only does it reveal the real-time and in situ plasma charging levels on the antennas, but it also separates positive and negative charging effect and provides two independent readings...
September 18, 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28923792/p2y2-nucleotide-receptor-prompts-human-cardiac-progenitor-cell-activation-by-modulating-hippo-signaling
#15
Farid G Khalafalla, Steven R Greene, Hashim Khan, Kelli Ilves, Megan M Monsanto, Roberto Alvarez, Monica Chavarria, Jonathan H Nguyen, Benjamin Norman, Walter P Dembitsky, Mark A Sussman
Rationale: Autologous stem cell therapy using human c-Kit(+) cardiac progenitor cells (hCPCs) is a promising therapeutic approach for treatment of heart failure (HF). However, hCPCs derived from aged HF patients with genetic predispositions and/or comorbidities of chronic diseases exhibit poor proliferative and migratory capabilities, which impairs overall reparative potential for injured myocardium. Therefore, empowering functionally compromised hCPCs with pro-regenerative molecules ex vivo is crucial for improving the therapeutic outcome in HF patients...
September 18, 2017: Circulation Research
https://www.readbyqxmd.com/read/28923787/first-in-man-randomized-comparison-of-buma-supreme-biodegradable-polymer-sirolimus-eluting-versus-durable-polymer-zotarolimus-eluting-coronary-stents-the-pioneer-trial
#16
Clemens von Birgelen, Taku Asano, Giovanni Amoroso, Adel Aminian, Salvatore Brugaletta, Mathias Vrolix, Rosana Hernandez-Antolín, Pim van de Harst, Andres Iñiguez, Luc Janssens, Pieter C Smits, Joanna J Wykrzykowska, Vasco Gama Ribeiro, Helder Periera, Pedro Canas da Silva, Jan J Piek, Yoshinobu Onuma, Patrick W Serruys, Manel Sabaté
AIMS: A second iteration of a sirolimus-eluting stent (SES) that has a biodegradable PLGA-polymer coating with electrografting base layer on a thin-strut (80µm) cobalt-chromium platform (BuMA Supreme; SINOMED, Tianjin, China) has been developed. This first-in-man trial assessed the efficacy and safety of the novel device. METHODS AND RESULTS: This randomized, multi-center, single-blinded, non-inferiority trial compared BuMA Supreme SES versus contemporary durable polymer zotarolimus-eluting stents (ZES) in terms of angiographic in-stent late lumen loss (LLL) at 9-months follow-up as the primary endpoint...
September 19, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28923278/can-adjunctive-therapies-augment-the-efficacy-of-endovascular-thrombolysis-a-potential-role-for-activated-protein-c
#17
REVIEW
Arun Paul Amar, Abhay P Sagare, Zhen Zhao, Yaoming Wang, Amy R Nelson, John H Griffin, Berislav V Zlokovic
In the management of acute ischemic stroke, vessel recanalization correlates with functional status, mortality, cost, and other outcome measures. Thrombolysis with intravenous tissue plasminogen activator has many limitations that restrict its applicability, but recent advances in the development of mechanical thrombectomy devices as well as improved systems of stroke care have resulted in greater likelihood of vessel revascularization. Nonetheless, there remains substantial discrepancy between rates of recanalization and rates of favorable outcome...
September 15, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28922953/high-technology-augmentative-and-alternative-communication-for-individuals-with-intellectual-and-developmental-disabilities-and-complex-communication-needs-a-meta-analysis
#18
Jennifer B Ganz, Kristi L Morin, Margaret J Foster, Kimberly J Vannest, Derya Genç Tosun, Emily V Gregori, Stephanie L Gerow
The use of mobile technology is ubiquitous in modern society and is rapidly increasing in novel use. The use of mobile devices and software applications ("apps") as augmentative and alternative communication (AAC) is rapidly expanding in the community, and this is also reflected in the research literature. This article reports the social-communication outcome results of a meta-analysis of single-case experimental research on the use of high-tech AAC, including mobile devices, by individuals with intellectual and developmental disabilities, including autism spectrum disorder...
September 19, 2017: Augmentative and Alternative Communication: AAC
https://www.readbyqxmd.com/read/28922874/noninvasive-transfontanelle-monitoring-of-the-intracerebral-pressure-in-comparison-with-an-invasive-intradural-intracranial-pressure-device-a-prospective-study
#19
Bedjan Behmanesh, Marco Bartels, Florian Gessler, Natalie Filmann, Volker Seifert, Matthias Setzer, Thomas M Freiman
BACKGROUND: We previously introduced a novel noninvasive technique of intracranial pressure (ICP) monitoring in children with open fontanelles. OBJECTIVE: To compare the ICP obtained by our new technique to the ICP derived from an intradurally implanted ICP measurement device (external ventricular drain, subdural ICP device). METHODS: Children with open fontanelles and need of intracranial monitoring were included in this study. A standard ICP probe was placed upon the frontal fontanelle and data were compared with the values recorded by an already invasively implanted subdural ICP technique...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28922544/flexible-photodetectors-based-on-novel-functional-materials
#20
REVIEW
Chao Xie, Feng Yan
Flexible photodetectors have attracted a great deal of research interest in recent years due to their great possibilities for application in a variety of emerging areas such as flexible, stretchable, implantable, portable, wearable and printed electronics and optoelectronics. Novel functional materials, including materials with zero-dimensional (0D) and one-dimensional (1D) inorganic nanostructures, two-dimensional (2D) layered materials, organic semiconductors and perovskite materials, exhibit appealing electrical and optoelectrical properties, as well as outstanding mechanical flexibility, and have been widely studied as building blocks in cost-effective flexible photodetection...
September 18, 2017: Small
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