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https://www.readbyqxmd.com/read/28637160/energy-producing-electro-flocculation-for-harvest-of-dunaliella-salina
#1
Qing Liu, Meng Zhang, Tao Lv, Hongjun Chen, Anthony Okonkwo Chika, Changli Xiang, Minxue Guo, Minghui Wu, Jianjun Li, Lishan Jia
In this study, an efficient electro-flocculation process for Dunaliella salina with energy production by aluminum-air battery has been successfully applied. The formed aluminum hydroxide hydrates during discharging of battery were positively charged, which have a great potential for microalgae flocculation. The precipitation of aluminum hydroxide hydrates by algae also could improve the performance of aluminum-air battery. The harvesting efficiency could reach 97% in 20mins with energy production of 0.11kWh/kg...
June 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28637017/diagnostic-and-prognostic-values-of-cerebrospinal-fluid-cyfra-21-1-in-patients-with-leptomeningeal-carcinomatosis
#2
Jae-Won Hyun, Ji Hyun Park, Boo Gil Kang, Eun Young Park, Boram Park, Jungnam Joo, Jong Kuk Kim, Su-Hyun Kim, Jee Hyang Jeong, Hyang Woon Lee, Kee Duk Park, Kyung Gyu Choi, Sang-Hyun Hwang, Ho-Shin Gwak, Ho Jin Kim
OBJECTIVES: To investigate the diagnostic and prognostic values of cerebrospinal fluid (CSF) CYFRA 21-1 in patients with leptomeningeal carcinomatosis (LMC). METHODS: Concentration of CSF CYFRA 21-1 was detected using electro-chemiluminescent immunoassay. The difference in level of CYFRA 21-1 between 61 patients with LMC and 200 patients with other neurological disease was evaluated, and diagnostic performance of CSF CYFRA 21-1 was investigated. In LMC patients treated with ventriculo-lumbar perfusion (VLP) chemotherapy, prognostic performance of CSF CYFRA 21-1 was evaluated...
June 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636684/balanced-work-function-as-a-driver-for-facile-hydrogen-evolution-reaction-comprehension-and-experimental-assessment-of-interfacial-catalytic-descriptor
#3
Aleksandar R Zeradjanin, Ashokanand Vimalanandan, George Polymeros, Angel A Topalov, Karl J J Mayrhofer, Michael Rohwerder
A major step in the development of (electro)catalysis would be the possibility to estimate accurately the energetics of adsorption processes related to reaction intermediates. Computational chemistry (e.g. using DFT) developed significantly in that direction and allowed the fast prediction of (electro)catalytic activity trends and improved the general understanding of adsorption at electrochemical interfaces. However, building a reliable and comprehensive picture of electrocatalytic reactions undoubtedly requires experimental assessment of adsorption energies...
June 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28634722/three-novel-bile-alcohols-of-mature-male-sea-lamprey-petromyzon-marinus-act-as-chemical-cues-for-conspecifics
#4
Ke Li, Anne M Scott, Joseph J Riedy, Skye Fissette, Zoe E Middleton, Weiming Li
Sea lamprey, Petromyzon marinus, rely heavily on chemical cues that mediate their life history events, such as migration and reproduction. Here, we describe petromyzone A-C (1-3), three novel bile alcohols that are highly oxidized and sulfated, isolated from water conditioned with spermiated male sea lamprey. Structures of these compounds were unequivocally established by spectroscopic analyses and by comparison with spectra of known compounds. Electro-olfactogram recordings showed that 1 at 10(-11) M was stimulatory to the adult sea lamprey olfactory epithelium, while 2 and 3 were stimulatory at 10(-13) M...
June 20, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/28630884/evaluation-of-a-high-resolution-patient-specific-model-of-the-electrically-stimulated-cochlea
#5
Ahmet Cakir, Robert T Dwyer, Jack H Noble
Cochlear implants (CIs) are surgically implanted medical devices used to treat individuals with severe-to-profound sensorineural hearing loss. Although these devices have been remarkably successful at restoring audibility, many patients experience poor outcomes. Our group has developed the first image-guided CI programming technique where the electrode positions are found in CT images and used to estimate neural activation patterns, which is unique information that audiologists can use to define patient-specific processor settings...
April 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28630486/integrated-optical-modulator-manipulating-the-polarization-and-rotation-handedness-of-orbital-angular-momentum-states
#6
S Faezeh Mousavi, Rahman Nouroozi, Giuseppe Vallone, Paolo Villoresi
Recent studies demonstrated that the optical channels encoded by Orbital Angular Momentum (OAM) are capable candidates for improving the next generation of communication systems. OAM states can enhance the capacity and security of high-dimensional communication channels in both classical and quantum regimes based on optical fibre and free space. Hence, fast and precise control of the beams encoded by OAM can provide their commercial applications in the compatible communication networks. Integrated optical devices are good miniaturized options to perform this issue...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28629026/multistate-proteinous-biomemory-device-based-on-redox-controllable-hapten-cross-linker
#7
Remziye Güzel, Arzu Ersöz, İbrahim Dolak, Rıdvan Say
A multistate biomemory device consisting of cytochrome c (Cyt-c) photosensitively cross-linked by MACys-Ru(bipyr)2-MACys hapten molecules, which have memory effect through a charge transfer mechanism, has been developed. In this study, it has suggested a highly resolute surface-confined switch composed a signal-enhanced electro-active protein (Cyt-c) co-polymerized on the gold substrates that can be controlled by redox property through Ruthenium based cysteine monomer hapten, MACys-Ru(bipyr)2-MACys as an ANADOLUCA photosensitive cross-linker...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28627139/direct-electro-oxidation-of-dimethyl-ether-on-pt-cu-nanochains
#8
Bar Gavriel, Ronit Sharabi, Lior Elbaz
In this work, new catalyst for the direct electro-oxidation of dimethyl ether (DME) was synthesized and studied using an array of techniques. One of the most prominent catalysts for this reaction, platinum copper alloy (PtCu), was synthesized in an easy and low cost approach. Structural characterizations such as X-ray diffraction (XRD), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HR-TEM) and elemental analysis revealed that the synthesized PtCu nanoparticles (3 nm on average), formed homogeneous NanoChains without aggregation of metallic platinum or copper...
June 18, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28626979/electro-clinical-criteria-and-surgical-outcome-is-there-a-difference-between-mesial-and-lesional-temporal-lobe-epilepsy
#9
M Wassenaar, F S S Leijten, G-J de Haan, S G Uijl, J W Sander
OBJECTIVES: Mesial temporal lobe epilepsy syndrome (MTLE) with specific electrophysiological and clinical characteristics and hippocampal sclerosis (HS) on MRI is considered the prototype of a syndrome with good surgical prognosis. Ictal onset zones in MTLE have been found to extend outside the hippocampus and neocortical seizures often involve mesial structures. It can, thus, be questioned whether MTLE with HS is different from lesional temporal epilepsies with respect to electro-clinical characteristics and surgical prognosis...
June 18, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/28625864/a-systematic-study-of-the-effect-of-low-ph-acid-treatment-on-anti-drug-antibodies-specific-for-a-domain-antibody-therapeutic-impact-on-drug-tolerance-assay-sensitivity-and-post-validation-method-assessment-of-ada-in-clinical-serum-samples
#10
Uma Kavita, Jia Duo, Sean Crawford, Rong Liu, Joan Valcin, Carol Gleason, Huijin Dong, Snaehal Gadkari, Robert W Dodge, Renuka Pillutla, Binodh S DeSilva
We developed a homogeneous bridging anti-drug antibody (ADA) assay on an electro chemiluminescent immunoassay (ECLIA) platform to support the immunogenicity evaluation of a dimeric domain antibody (dAb) therapeutic in clinical studies. During method development we evaluated the impact of different types of acid at various pH levels on polyclonal and monoclonal ADA controls of differing affinities and on/off rates. The data shows for the first time that acids of different pH can have a differential effect on ADA of various affinities and this in turn impacts assay sensitivity and drug tolerance as defined by these surrogate controls...
June 15, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28623746/electrokinetic-enhanced-ryegrass-cultures-in-soils-polluted-with-organic-and-inorganic-compounds
#11
Gustavo Acosta-Santoyo, Claudio Cameselle, Erika Bustos
The effect of electric fields on seed germination and development of ryegrass (Lolium perenne L.) was studied in clean and contaminated soil with heavy metals and/or PAHs. The application of 0.2 DCV/cm in clean soil near ryegrass seeds enhanced the germination by 75%. The presence of contaminants in soil hindered the germination and growing of ryegrass. However, the application of DC electric field favored the germination and growing of plants compensating the negative effects of the contaminants. The electrode material in anodes has a decisive influence in the germination and growing of ryegrass...
June 14, 2017: Environmental Research
https://www.readbyqxmd.com/read/28623474/epithelial-fluid-transport-is-due-to-electro-osmosis-80-plus-osmosis-20
#12
Jorge Fischbarg, Julio A Hernandez, Andrey A Rubashkin, Pavel Iserovich, Veronica I Cacace, Carlos F Kusnier
Epithelial fluid transport, an important physiological process shrouded in a long-standing enigma, may finally be moving closer to a solution. We propose that, for the corneal endothelium, relative proportions for the driving forces for fluid transport are 80% of paracellular electro-osmosis, and 20% classical transcellular osmosis. These operate in a cyclical process with a period of 9.2 s, which is dictated by the decrease and exhaustion of cellular Na(+). Paracellular electro-osmosis is sketched here, and partially discussed as much as the subject still allows; transcellular osmosis is presented at length...
June 16, 2017: Journal of Membrane Biology
https://www.readbyqxmd.com/read/28621314/directed-self-assembly-of-liquid-crystalline-blue-phases-into-ideal-single-crystals
#13
Jose A Martínez-González, Xiao Li, Monirosadat Sadati, Ye Zhou, Rui Zhang, Paul F Nealey, Juan J de Pablo
Chiral nematic liquid crystals are known to form blue phases-liquid states of matter that exhibit ordered cubic arrangements of topological defects. Blue-phase specimens, however, are generally polycrystalline, consisting of randomly oriented domains that limit their performance in applications. A strategy that relies on nano-patterned substrates is presented here for preparation of stable, macroscopic single-crystal blue-phase materials. Different template designs are conceived to exert control over different planes of the blue-phase lattice orientation with respect to the underlying substrate...
June 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28620493/a-bronchoscopic-approach-to-benign-subglottic-stenosis
#14
Tuhina Raman, Kshitij Chatterjee, Bashar N Alzghoul, Ayoub A Innabi, Ozlem Tulunay, Thaddeus Bartter, Nikhil K Meena
OBJECTIVES: Subglottic stenosis is an abnormal narrowing of the tracheal lumen at the level of subglottis (the area in between the vocal cords and the cricoid cartilage). It can cause significant symptoms due to severe attenuation of airflow. We describe our experience in alleviating symptoms by addressing the stenosis using fibreoptic bronchoscopic methods. METHODS: We report all concurrent cases performed between September 2015 and July 2016. We use a combination of balloon dilation, electro-surgery knife to dilate and incise stenotic segments followed by steroid injection to modulate healing...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28619665/computer-modelling-of-electro-osmotically-augmented-three-layered-microvascular-peristaltic-blood-flow
#15
Dharmendra Tripathi, Abhilesh Borode, Ravinder Jhorar, O Anwar Bég, Abhishek Kumar Tiwari
A theoretical study is presented here for the electro-osmosis modulated peristaltic three-layered capillary flow of viscous fluids with different viscosities in the layers. The layers considered here are the core layer, the intermediate layer and the peripheral layer. The analysis has been carried out under a number of physical restrictions viz. Debye-Hückel linearization (i.e. wall zeta potential ≤25mV) is assumed sufficiently small, thin electric double layer limit (i.e. the peripheral layer is much thicker than the electric double layer thickness), low Reynolds number and large wavelength approximations...
June 12, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28618716/rf-electromagnetic-field-treatment-of-tetragonal-kesterite-cztsse-light-absorbers
#16
Mykola O Semenenko, Ivan S Babichuk, Oleksandr Kyriienko, Ivan V Bodnar, Raquel Caballero, Maximo Leon
In this work, we propose a method to improve electro-optical and structural parameters of light-absorbing kesterite materials. It relies on the application of weak power hydrogen plasma discharges using electromagnetic field of radio frequency range, which improves homogeneity of the samples. The method allows to reduce strain of light absorbers and is suitable for designing solar cells based on multilayered thin film structures. Structural characteristics of tetragonal kesterite Cu2ZnSn(S, Se)4 structures and their optical properties were studied by Raman, infrared, and reflectance spectroscopies...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28617602/rewriting-electron-transfer-kinetics-at-pyrolytic-carbon-electrodes-decorated-with-nanometric-ruthenium-oxide
#17
Joseph F Parker, Gabrielle E Kamm, Ashlee D McGovern, Paul A DeSario, Debra R Rolison, Justin C Lytle, Jeffrey W Long
Platinum is state-of-the-art for fast electron transfer whereas carbon electrodes, which have semimetal electronic character, typically exhibit slow electron-transfer kinetics. But when we turn to practical electrochemical devices, we turn to carbon. To move energy devices and electro(bio)analytical measurements to a new performance curve requires improved electron-transfer rates at carbon. We approach this challenge with electroless deposition of disordered, nanoscopic anhydrous ruthenium oxide at pyrolytic carbon prepared by thermal decomposition of benzene (RuOx@CVD-C)...
June 15, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28617247/uniquely-confining-cu2s-nanoparticles-in-graphitized-carbon-fibers-for-enhanced-oxygen-evolution-reaction
#18
Yu Wang, Xiaoqian Zhao, Yan Zhang, Huijuan Zhang, Li Liu
Up to now, there are rare literatures on Cu2S applied to oxygen evolution reaction (OER) of electro-catalytic field, especially one with specific morphology. In this work,a unique peapod-like Cu2S/C exhibiting superb electrocatalytic performance toward OER is successfully synthesized, by employing the Cu(OH)2 nanorods as template and the nontoxic glucose as the carbon source and annealing with sublimed sulfur ultimately. It can be seen that this work explores a new application area for Cu2S. Precisely, it is the novel morphology that contributes to increasing the electrochemical active surface area effectively and promoting the contact between the Cu2S nanoparticles and the electrolyte...
June 15, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28616869/a-perfluorobutylpentane-f4h5-based-solution-for-the-removal-of-residual-emulsified-silicone-oil
#19
Yau Kei Chan, Ho Ching Cheng, Jing Wu, Yuk Heng Matthew Tang, San To Chan, David Wong, Ho Cheung Shum
PURPOSE: The emulsification of silicone oil (SO) is associated with many complications. In this study, we investigate a new SO solvent, perfluorobutylpentane (F4H5) with 1% by volume of perfluorinated polyethers-polyethylene glycol-perfluorinated polyethers (PFPE-PEG-PFPE) triblock copolymer, for removing emulsified droplets. METHODS: An in vitro 3D printed model eye chamber was used to evaluate the efficiency of the three test liquids in removing SO droplets, namely saline, F4H5 and F4H5 with surfactant PFPE-PEG-PFPE...
June 14, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28616232/treatment-of-sudden-hearing-loss-using-electro-acupuncture
#20
Ya-Ching Chang, Kwok-Ying Chan
OBJECTIVES: Sudden neurosensory deafness is the second debilitating disease in China. In fact, the current treatment is limited to hearing aids, assistive devices and cochlear implants. However, some patients might not be suitable for surgery or even hearing aids. METHODS: Hereby, we report a pediatric case of sudden sensorineural hearing loss accompanied by otalgia and blocked ear sensation. RESULTS: He firstly failed with conventional treatment but later his hearing symptoms were improved with our electro-acupuncture therapy according to pure tone audiometry findings and clinical responses...
2017: SAGE open medical case reports
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