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https://www.readbyqxmd.com/read/28813013/recent-advances-in-electrospun-nanofiber-interfaces-for-biosensing-devices
#1
REVIEW
Eleni Sapountzi, Mohamed Braiek, Jean-François Chateaux, Nicole Jaffrezic-Renault, Florence Lagarde
Electrospinning has emerged as a very powerful method combining efficiency, versatility and low cost to elaborate scalable ordered and complex nanofibrous assemblies from a rich variety of polymers. Electrospun nanofibers have demonstrated high potential for a wide spectrum of applications, including drug delivery, tissue engineering, energy conversion and storage, or physical and chemical sensors. The number of works related to biosensing devices integrating electrospun nanofibers has also increased substantially over the last decade...
August 16, 2017: Sensors
https://www.readbyqxmd.com/read/28812894/enhanced-production-of-%C3%AE%C2%BA-carrageenase-and-%C3%AE%C2%BA-carrageenan-oligosaccharides-through-immobilization-of-thalassospira-sp-fjfst-332-with-magnetic-fe3o4-chitosan-microspheres
#2
Juanjuan Guo, Zhichang Zheng, Chi Chen, Xu Lu, Yi Zhang, Baodong Zheng
In this study, immobilized bacteria (IMB) microsphere was prepared by embedding κ-carrageenase-producing Thalassospira sp.Fjfst-332 (TF332) onto a magnetic Fe3O4-chitosan carrier. The performance of Fe3O4-chitosan carrier was optimized by comparing their bacteria immobilization capacity at different Fe3O4:chitosan ratios and temperatures, while the functions of IMB microspheres were characterized by examining their κ-carrageenase production at different temperatures, pH, and reuse cycles. At the 1:1 (w:w) Fe3O4:chitosan ratio, the Fe3O4-chitosan carriers possessed sufficient anchoring capacity for bacterial immobilization without significant compromise of their magnetism for magnetic separation of IMB from culture media...
August 16, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28812195/design-and-evaluation-of-a-compact-photocatalytic-reactor-for-water-treatment
#3
Marko Kete, Olena Pliekhova, Lev Matoh, Urška Lavrenčič Štangar
A compact reactor for photocatalytic oxidation and photocatalytic ozonation water treatment was developed and evaluated by using four model pollutants. Additionally, combinations of pollutants were evaluated. Specially produced Al2O3 porous reticulated monolith foams served as TiO2 carriers, offering a high surface area support. UV lamps were placed in the interior to achieve reduced dimensions of the reactor (12 cm in diameter × 20 cm in height). Despite its small size, the overall photocatalytic cleaning capacity was substantial...
August 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28811026/multiple-epitope-presentation-and-surface-density-control-enabled-by-chemoselective-immobilization-lead-to-enhanced-performance-in-ige-binding-fingerprinting-on-peptide-microarrays
#4
Alessandro Gori, Marina Cretich, Renzo Vanna, Laura Sola, Paola Gagni, Giulia Bruni, Marta Liprino, Furio Gramatica, Samuele Burastero, Marcella Chiari
Multiple ligand presentation is a powerful strategy to enhance the affinity of a probe for its corresponding target. A promising application of this concept lies in the analytical field, where surface immobilized probes interact with their corresponding targets in the context of complex biological samples. Here we investigate the effect of multiple epitope presentation (MEP) in the challenging context of IgE-detection in serum samples using peptide microarrays, and evaluate the influence of probes surface density on the assay results...
August 29, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28810540/erratum-to-immobilization-of-cd-in-a-paddy-soil-using-moisture-management-and-amendment-chemosphere-122-march-2015-131-136
#5
Jianrui Li, Yingming Xu
No abstract text is available yet for this article.
October 2017: Chemosphere
https://www.readbyqxmd.com/read/28810222/bio-electro-oxidation-of-indigo-carmine-by-using-microporous-activated-carbon-fiber-felt-as-anode-and-bioreactor-support
#6
Luane Ferreira Garcia, Ana Claudia Rodrigues Siqueira, Germán Sanz Lobón, Jossano Saldanha Marcuzzo, Benevides Costa Pessela, Eduardo Mendez, Telma Alves Garcia, Eric de Souza Gil
The bioremediation and electro-oxidation (EO) processes are included among the most promising cleaning and decontamination mechanisms of water. The efficiency of bioremediation is dictated by the biological actuator for a specific substrate, its suitable immobilization and all involved biochemical concepts. The EO performance is defined by the anode efficiency to perform the complete mineralization of target compounds and is highlighted by the low or null use of reagent. Recently, the combination of both technologies has been proposed...
August 10, 2017: Chemosphere
https://www.readbyqxmd.com/read/28809638/-four-corner-arthrodesis-of-the-wrist-with-dorsal-circular-plate-a-retrospective-monocentric-study
#7
T Zatrapa, D Veigl, J Pech, I Landor, M Šimková
PURPOSE OF THE STUDY Our study aimed to evaluate a group of patients who in the period from 2005 to 2014 underwent a four-corner arthrodesis of the wrist in our department. We also wanted to verify the hypothesis as to whether the use of conventional dorsal plate without the application of bone grafts leads to comparable results as the use of dorsal locking plates and routine application of bone grafts. MATERIAL AND METHODS Throughout the years 2005 to 2014 the four-corner arthrodesis of the wrist was performed in our department in a total of 62 patients, in two cases bilaterally...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28809628/-the-effect-of-activation-of-the-shoulder-girdle-muscles-on-functional-outcomes-of-rehabilitation-in-patients-with-surgically-treated-distal-radius-fractures
#8
V Jančíková, J Opavský, P Dráč, A Krobot, I Čižmář
PURPOSE OF THE STUDY The aim of the study was to assess the functional outcomes of rehabilitation in patients with surgically treated distal radius fractures in the early postoperative period. We compared the functional outcomes of patients undergoing standard rehabilitation with the group of patients whose postoperative rehabilitation was extended with shoulder girdle exercises of the affected upper limb while the wrist was immobilized. Several indices and variables were used for the assessment of the functional therapeutic outcomes of the affected wrist...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28809504/influence-of-particle-size-and-loading-on-particle-accessibility-in-electrospun-poly-ethylene-oxide-and-zif-8-composite-fibers-experiments-and-theory
#9
Mitchell R Armstrong, Christopher Balzer, Bohan Shan, Bin Mu
Developing electrospun nanofiber/ nanoparticle composites (ENNCs) is an emerging strategy for immobilizing functional particles for a variety of applications. The radial location of the particle along the fiber, either at the surface or in the bulk, has implication into the resulting properties. To explore particle location along fibers, ZIF-8 impregnated poly(ethylene oxide) (PEO) nanofibers are formed by electrospinning particle suspensions. Fibers impregnated with two different ZIF-8 particle sizes (200 nm and 12...
August 15, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28809474/a-nano-in-nano-approach-for-enzyme-immobilization-based-on-block-copolymers
#10
Finizia Auriemma, Claudio De Rosa, Anna Malafronte, Rocco Di Girolamo, Chiara Santillo, Yuri Gerelli, Giovanna Fragneto, Robert David Barker, Vincenzo Pavone, Ornella Maglio, Angela Lombardi
We have set-up a facile approach for fabrication of supports with tailored nanoporosity for immobilization of enzymes. To this aim block copolymers self-assembly has been used to prepare nanostructured thin films with well-defined architecture containing pores of tailorable size delimited by walls with tailorable degree of hydrophilicity. In particular, we have employed a mixture of polystyrene-block-poly(L-lactide) (PS-PLLA) and polystyrene-block-poly(ethylene oxide) (PS-PEO) diblock copolymers to generate thin films with a lamellar morphology consisting of PS lamellar do-mains alternating with mixed PEO/PLLA blocks lamellar domains...
August 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28809421/-reactive-nano-complex-coated-medical-cotton-a-facile-avenue-for-tailored-release-of-small-molecules
#11
Adil Majeed Rather, Sulendar Mahato, Kousik Maji, Neeha Gogoi, Uttam Manna
Controlled and sustained release of drug-like small molecules in an aqueous medium still remains a challenging problem due to rapid infiltration of liquid water in most reported drug release systems. However, internal-superhydrophobicity with an antifouling property extending beyond the surface of a material recently has been recognized as a potential avenue for sustained and extended release of drug-like small molecules. Sluggish removal of metastable trapped air in a superhyrophobic material provides a basis to achieve extended release of encapsulated small molecules...
August 15, 2017: Nanoscale
https://www.readbyqxmd.com/read/28809004/identification-of-lipid-binding-modulators-using-the-protein-lipid-overlay-assay
#12
Tuo-Xian Tang, Wen Xiong, Carla V Finkielstein, Daniel G S Capelluto
The protein-lipid overlay assay is an inexpensive, easy-to-implement, and high-throughput methodology that employs nitrocellulose membranes to immobilize lipids in order to rapid screen and identify protein-lipid interactions. In this chapter, we show how this methodology can identify potential modulators of protein-lipid interactions by screening water-soluble lipid competitors or even the introduction of pH changes during the binding assay to identify pH-dependent lipid binding events.
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28808021/kinetic-and-high-throughput-profiling-of-epigenetic-interactions-by-3d-carbene-chip-based-surface-plasmon-resonance-imaging-technology
#13
Shuai Zhao, Mo Yang, Wenfei Zhou, Baichao Zhang, Zhiqiang Cheng, Jiaxin Huang, Min Zhang, Zhiyou Wang, Rui Wang, Zhonglei Chen, Jinsong Zhu, Haitao Li
Chemical modifications on histones and DNA/RNA constitute a fundamental mechanism for epigenetic regulation. These modifications often function as docking marks to recruit or stabilize cognate "reader" proteins. So far, a platform for quantitative and high-throughput profiling of the epigenetic interactome is urgently needed but still lacking. Here, we report a 3D-carbene chip-based surface plasmon resonance imaging (SPRi) technology for this purpose. The 3D-carbene chip is suitable for immobilizing versatile biomolecules (e...
August 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28807980/cd177-modulates-human-neutrophil-migration-through-activation-mediated-integrin-and-chemoreceptor-regulation
#14
Ming Bai, Ricardo Grieshaber-Bouyer, Junxia Wang, Angela B Schmider, Zachary S Wilson, Liling Zeng, Olha Halyabar, Matthew D Godin, Hung N Nguyen, Anaïs Levescot, Pierre Cunin, Craig T Lefort, Roy J Soberman, Peter A Nigrovic
CD177 is a GPI-anchored protein expressed by a variable proportion of human neutrophils that mediates surface expression of the anti-neutrophil cytoplasmic antibody (ANCA) antigen proteinase 3. CD177 associates with β2 integrins and recognizes PECAM-1, suggesting a role in neutrophil migration. However, CD177(pos) neutrophils exhibit no clear migratory advantage in vivo, despite interruption of transendothelial migration by in vitro CD177 ligation. We sought to understand this paradox. Using a PECAM-1-independent transwell system, we found that CD177(pos) and CD177(neg) neutrophils migrated comparably...
August 14, 2017: Blood
https://www.readbyqxmd.com/read/28807313/severe-impact-of-sarcoptic-mange-on-the-movements-and-space-use-for-one-of-its-most-important-vector-species-the-raccoon-dog
#15
Karmen Süld, Egle Tammeleht, Harri Valdmann, Urmas Saarma
Sarcoptic mange is a highly contagious zoonotic skin disease that can have severe effect on population dynamics of many wild mammals. However, very little is known about its effect on the activity and space use of infected animals. In this study we equipped two raccoon dogs (Nyctereutes procyonoides) in a mange outbreak area with radio-collars and observed the spatial and temporal effects of sarcoptic mange to these individuals. Initially, the raccoon dogs had no external symptoms of mange infection, but developed these during the study period...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28807080/a-descriptive-analysis-of-traction-splint-utilization-and-iv-analgesia-by-emergency-medical-services
#16
Joshua Nackenson, Amado A Baez, Jonathan P Meizoso
Study Objectives Traction splinting has been the prehospital treatment of midshaft femur fracture as early as the battlefield of the First World War (1914-1918). This study is the assessment of these injuries and the utilization of a traction splint (TS) in blunt and penetrating trauma, as well as intravenous (IV) analgesia utilization by Emergency Medical Services (EMS) in Miami, Florida (USA). METHODS: This is a retrospective study of patients who sustained a midshaft femur fracture in the absence of multiple other severe injuries or severe physiologic derangement, as defined by an injury severity score (ISS) <20 and a triage revised trauma score (T-RTS)≥10, who presented to an urban, Level 1 trauma center between September 2008 and September 2013...
August 15, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/28807073/a-comparison-of-paramedic-first-pass-endotracheal-intubation-success-rate-of-the-vividtrac-vt-a-100-glidescope-ranger-and-direct-laryngoscopy-under-simulated-prehospital-cervical-spinal-immobilization-conditions-in-a-cadaveric-model
#17
Ryan Hodnick, Tony Zitek, Kellen Galster, Stephen Johnson, Bryan Bledsoe, Daniel Ebbs
OBJECTIVE: The primary goal of this study was to compare paramedic first pass success rate between two different video laryngoscopes and direct laryngoscopy (DL) under simulated prehospital conditions in a cadaveric model. METHODS: This was a non-randomized, group-controlled trial in which five non-embalmed, non-frozen cadavers were intubated under prehospital spinal immobilization conditions using DL and with both the GlideScope Ranger (GL; Verathon Inc, Bothell, Washington USA) and the VividTrac VT-A100 (VT; Vivid Medical, Palo Alto, California USA)...
August 15, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/28806678/the-sorptive-and-reductive-capacities-of-biochar-supported-nanoscaled-zero-valent-iron-nzvi-in-relation-to-its-crystallite-size
#18
Shengsen Wang, Yanxia Zhou, Bin Gao, Xiaozhi Wang, Xianqiang Yin, Ke Feng, Jun Wang
In this work, nZVI was immobilized by bamboo derived biochars (nZVI/BB), hydrogen peroxide (H2O2) (nZVI/PBB) and nitric acid (HNO3) (nZVI/HBB) modified BB. H2O2 and HNO3 deceased surface area and pore volume of pristine biochars. Total iron (Fe) contents were 16.50, 24.40, and 13.08% for nZVI/BB, nZVI/PBB and nZVI/HBB, respectively. The X-ray diffraction revealed that nZVI in biochar matrix was dominantly metallic Fe coated with Fe oxides. The transmission electron microscopy indicated nZVI particle sizes were 41...
August 7, 2017: Chemosphere
https://www.readbyqxmd.com/read/28806558/nanoscale-zero-valent-iron-coated-with-rhamnolipid-as-an-effective-stabilizer-for-immobilization-of-cd-and-pb-in-river-sediments
#19
Wenjing Xue, Danlian Huang, Guangming Zeng, Jia Wan, Chen Zhang, Rui Xu, Min Cheng, Rui Deng
Nanoremediation strategies applied to contaminated river sediments can induce changes in the mobility and bioavailability of metals with potential consequences on ecosystem health. In this study, the performance of rhamnolipid (RL) coated nanoscale zero-valent iron (NZVI) in immobilizing cadmium (Cd) and lead (Pb) from contaminated river sediments was investigated. We demonstrated that RNZVI was effective in transforming labile Cd and Pb to stable fraction (the maximum residual percentage of Cd and Pb increased by 56...
June 15, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28806068/in-situ-atomic-scale-studies-of-the-formation-of-epitaxial-pt-nanocrystals-on-monolayer-molybdenum-disulfide
#20
Shanshan Wang, Hidetaka Sawada, Qu Chen, Grace G D Han, Christopher Allen, Angus I Kirkland, Jamie H Warner
Pt-nanocrystal:MoS2 hybrid materials have promising catalytic properties for hydrogen evolution, and understanding their detailed structures at the atomic scale is crucial to further development. Here, we use an in situ heating holder in an aberration-corrected transmission electron microscope to study the formation of Pt nanocrystals directly on the surface of monolayer MoS2 from a precursor on heating to 800 °C. Isolated single Pt atoms and small nanoclusters are observed after in situ heating, with two types of preferential alignment between the Pt nanocrystals and the underlying monolayer MoS2...
August 14, 2017: ACS Nano
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