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Diffusion capacity

Lisa M Housel, Lei Wang, Alyson Abraham, Jianping Huang, Genesis D Renderos, Calvin D Quilty, Alexander B Brady, Amy C Marschilok, Kenneth J Takeuchi, Esther S Takeuchi
Future advances in energy storage systems rely on identification of appropriate target materials and deliberate synthesis of the target materials with control of their physiochemical properties in order to disentangle the contributions of distinct properties to the functional electrochemistry. This goal demands systematic inquiry using model materials that provide the opportunity for significant synthetic versatility and control. Ideally, a material family that enables direct manipulation of characteristics including composition, defects, and crystallite size while remaining within the defined structural framework would be necessary...
February 19, 2018: Accounts of Chemical Research
Yanfeng Dong, Shuanghao Zheng, Jieqiong Qin, Xuejun Zhao, Haodong Shi, Xiaohui Wang, Jian Chen, Zhong-Shuai Wu
High-energy-density lithium-sulfur (Li-S) batteries hold promise for next-generation portable electronic devices, but are facing great challenges in rational construction of novel high-performance flexible electrode and innovative cell configuration for actual applications. Here we demonstrated an all-MXene-based flexible and integrated sulfur cathode, enabled by three dimensional alkalized Ti3C2 MXene nanoribbon (a-Ti3C2 MNR) frameworks as S/polysulfides host (a-Ti3C2-S) and two dimensional delaminated Ti3C2 MXene (d-Ti3C2) nanosheets as interlayer on polypropylene (PP) separator, for high-energy and long-cycle Li-S batteries...
February 17, 2018: ACS Nano
Audrey Benyamine, Xavier Heim, Noémie Resseguier, Daniel Bertin, Carine Gomez, Mikaël Ebbo, Jean-Robert Harlé, Gilles Kaplanski, Pascal Rossi, Nathalie Bardin, Brigitte Granel
OBJECTIVES: We aimed to assess the clinical significance of Krebs von den Lungen-6 (KL-6) in the diagnosis and severity of interstitial lung disease (ILD) in a French cohort of patients with systemic sclerosis (SSc). METHODS: Serum KL-6 concentrations were measured with chemiluminescent enzyme immunoassay (CLEIA) in 75 SSc patients. Patients were divided into two groups according to the presence of interstitial lung disease (SSc-ILD versus SSc-without ILD) on chest High-Resolution Computed Tomography...
February 17, 2018: Rheumatology International
Ge Li, Xiaolei Wang, Min Ho Seo, Matthew Li, Lu Ma, Yifei Yuan, Tianpin Wu, Aiping Yu, Shun Wang, Jun Lu, Zhongwei Chen
Lithium-sulfur battery possesses high energy density but suffers from severe capacity fading due to the dissolution of lithium polysulfides. Novel design and mechanisms to encapsulate lithium polysulfides are greatly desired by high-performance lithium-sulfur batteries towards practical applications. Herein, we report a strategy of utilizing anthraquinone, a natural abundant organic molecule, to suppress dissolution and diffusion of polysulfides species through redox reactions during cycling. The keto groups of anthraquinone play a critical role in forming strong Lewis acid-based chemical bonding...
February 16, 2018: Nature Communications
Margaret M Mroz, John H Ferguson, Anna V Faino, Annyce Mayer, Matthew Strand, Lisa A Maier
BACKGROUND: The clinical effects of inhaled corticosteroids (ICS) on chronic beryllium disease (CBD) are unknown. Although frequently used for symptoms or disease not requiring systemic therapy, the clinical course of patients on ICS has not been evaluated. METHODS: In a retrospective cohort study, forty-eight subjects with CBD, diagnosed by granulomas on lung biopsy and treated with inhaled corticosteroids, were matched to sixty-eight subjects with CBD who were not treated...
February 5, 2018: Respiratory Medicine
Aolei Gao, Zhenhua Sun, Shaopeng Li, Xinjuan Hou, Huiquan Li, Qisheng Wu, Xinguo Xi
Li 1.6 Mn 1.6 O 4 is a representative ion sieve material that is used to recover lithium from salt brines and bitterns owing to its high lithium ion adsorption capacity reaching 11.9-44 mg g -1 . However, manganese dissolution during acid treatment hinders the industrial application of the material. For investigating the mechanism of manganese dissolution, the precursor Li 1.6 Mn 1.6 O 4 and ion sieve H 1.6 Mn 1.6 O 4 were prepared and characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), chemical content analyses, diffuse reflectance infrared Fourier-transform spectroscopy (DRIFTS), and X-ray photoelectron spectroscopy (XPS)...
February 16, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
Linda A Bradbury, Kelly A Hollis, Benoît Gautier, Sateesh Shankaranarayana, Philip C Robinson, Nivene Saad, Kim-Anh Lê Cao, Matthew A Brown
OBJECTIVE: We tested the discriminatory capacity of diffusion-weighted magnetic resonance imaging (DWI) and its potential as an objective measure of treatment response to tumor necrosis factor inhibition in ankylosing spondylitis (AS). METHODS: Three cohorts were studied prospectively: (1) 18 AS patients with Bath Ankylosing Spondylitis Disease Activity Index > 4, and erythrocyte sedimentation rate > 25 and/or C-reactive protein > 10 meeting the modified New York criteria for AS; (2) 20 cases of nonradiographic axial spondyloarthritis (nr-axSpA) as defined by the Assessment of Spondyloarthritis international Society (ASAS) criteria; and (3) 20 non-AS patients with chronic low back pain, aged between 18 and 45 years, who did not meet the imaging arm of the ASAS criteria for axSpA...
February 15, 2018: Journal of Rheumatology
Liping Wang, Mingyu Zhang, Qizhong Huang, Chenxi Zhao, Kun Luo, Min Lei
ACF/GO/PEI (activated carbon fiber/graphene oxide/polyethyleneimine) composite was fabricated by crosslinking reaction and characterized with Scanning electron microscope (SEM), N2 physical adsorption and Fourier transform infrared spectroscopy (FTIR). Furthermore, the adsorption behavior of ACF/GO/PEI composite for methyl orange (MO) from aqueous solution was investigated. The experimental results showed that the specific surface area of ACF/GO/PEI composite is 1013.6 m2/g and almost the same as that of original ACFs...
March 1, 2018: Journal of Nanoscience and Nanotechnology
Hongtao Gao, Miaomiao Kong, Hui Song, Tian Fu, Dongmei Dai, Fenghua Li, Chongdian Si
Carbons spheres, easily fabricated by glucose hydrolysis, were integrated with α-Fe2O3 for removing heavy metal from contaminated water. The α-Fe2O3 particles were anchored on the surface of carbon spheres and the combination of two components provided more rough surface area, enhancing the adsorption performance of α-Fe2O3. The removal efficiency of Cr(VI) on α-Fe2O3/carbon spheres was 88% in 240 min, which was 1.93 times higher than that of pristine α-Fe2O3. The investigation on adsorption kinetics and isotherm showed that the pseudo-first-order kinetic and Langmuir isotherm models could well fit the experimental data...
February 1, 2018: Journal of Nanoscience and Nanotechnology
Silvia Bosello, Umberto Basile, Enrico De Lorenzis, Francesca Gulli, Giovanni Canestrari, Cecilia Napodano, Federico Parisi, Krizia Pocino, Clara Di Mario, Barbara Tolusso, Gianfranco Ferraccioli, Elisa Gremese
AIM: Humoral immunity and B cells are thought to play an important role in the pathophysiology of the systemic sclerosis (SSc). The production of free light chains (FLC) of immunoglobulins is abnormally high in several pathological autoimmune conditions and reflects B cell activation. Furthermore, FLCs demonstrated different biological activities including their capability to modulate the immune system, proteolytic activity and complement cascade activation. The aims of this study are to determine the FLC levels in patients with SSc compared with healthy controls (HC) and to study their possible association with organ involvement and disease characteristics...
January 31, 2018: Journal of Clinical Pathology
Xiaohong Zhao, Yuansheng Hu, Yaqian Zhao, Lordwin Kumar
In this study, a high organic loading rate of 58-146 g BOD 5 /m 2 day with a hydraulic loading rate (HLR) of 1.63 m 3 /m 2 day and retention time (RT) of 16 h was achieved to maximize the treatment capacity of a four-stage alum sludge-based constructed wetland (CW) system. An alternative operation strategy, i.e., the first stage anaerobic up-flow and the remaining stage tidal flow with effluent recirculation, was investigated to achieve the goal with good treatment performance of 82% COD, 91% BOD 5 , 92% SS, 94% NH 4 -N, and 82% TN removal...
February 14, 2018: Environmental Science and Pollution Research International
Yi Lu, Min Pang, Shiliang Shi, Qing Ye, Zhaojun Tian, Tao Wang
The typical co-precipitation method was adopted to synthesized the Li-excess Li 1.20 [Mn 0.52-x Zr x Ni 0.20 Co 0.08 ]O 2 (x = 0, 0.01, 0.02, 0.03) series cathode materials. The influences of Zr 4+ doping modification on the microstructure and micromorphology of Li 1.20 [Mn 0.52 Ni 0.20 Co 0.08 ]O 2 cathode materials were studied intensively by the combinations of XRD, SEM, LPS and XPS. Besides, after the doping modification with zirconium ions, Li 1.20 [Mn 0.52 Ni 0.20 Co 0.08 ]O 2 cathode demonstrated the lower cation mixing, superior cycling performance and higher rate capacities...
February 14, 2018: Scientific Reports
Cristian Moya, Noelia Alonso-Morales, Juan de Riva, Oscar Morales-Collazo, Joan Frances Brennecke, José Palomar
The performance in CO2 capture of an ionic liquid with an aprotic heterocyclic anion (AHA-IL), trihexyl(tetradecyl)phosphonium 2-cyanopyrrolide ([P66614][2-CNPyr]), has been evaluated considering both the thermodynamics and the kinetics of the phenomena. Absorption gravimetric measurements of the gas-liquid equilibrium isotherms of CO2 - AHA-IL systems were carried out from 298K to 333 K and pressures to 15 bar, analyzing the role of both chemical and physical absorption on the overall CO2 solubility in the AHA-IL, as has been done previously...
February 14, 2018: Journal of Physical Chemistry. B
Melike Gozutok, Ahmet Ozan Basar, Hilal Turkoglu Sasmazel
In this study, a natural antibacterial substance chitosan was coated with/without potassium sorbate (KS) (0.8% (w/w) of KS, 8% (w/v) chitosan) onto the polypropylene (PP) film by using electrospinning technique to obtain novel antibacterial composite materials for various applications such as wound dressing, tissue engineering, drug delivery and food packaging. Atmospheric pressure plasma surface treatment was applied onto polypropylene films in order to increase its wettability thus enhancing the adhesion capacity of the films and the optimum CA value was determined as 42...
April 1, 2018: Journal of Nanoscience and Nanotechnology
Shuxin Liu, Haibin Wang, Jianfeng Gao, Jichuan He, Guoqiang Yu, Tianming Zhou
The Li3PO4 modified LiFePO4/C and Li4P2O7 modified LiFePO4/C cathode materials were synthesized by in-situ synthesis method, respectively. Phase compositions and microstructures of the products were characterized by X-ray powder diffraction (XRD), scanning electronic microscope (SEM). Results indicate that Li3PO4 and Li4P2O7 can sufficiently coat on the LiFePO4 surface and does not alter LiFePO4 crystal structure. The electrochemical behavior of cathode materials was analyzed using galvanostatic measurement and cyclic voltammetry (CV)...
May 1, 2018: Journal of Nanoscience and Nanotechnology
Anna L Hagstrom, Hak-Lae Lee, Myung-Soo Lee, Hyun-Seok Choe, Joori Jung, Byung-Geon Park, Won-Sik Han, Jong Soo Ko, Jae-Hong Kim, Jaehyuk Kim
Triplet-triplet annihilation upconversion (TTA-UC) has recently drawn widespread interest for its capacity to harvest low-energy photons and to broaden the absorption spectra of photonic devices such as solar cells. Although conceptually promising, effective integration of TTA-UC materials into practical devices has been difficult due to the diffusive and anoxic conditions required in TTA-UC host media. Of the solid-state host materials investigated, rubbery polymers facilitate the highest TTA-UC efficiencies...
February 14, 2018: ACS Applied Materials & Interfaces
Sankha Mukherjee, Lance Kavalsky, Chandra Veer Singh
In the wake of Blue Phosphorene's (BP) computational discovery and experimental realization, it has emerged as a versatile material with interesting optical, electrical and mechanical properties. In this study, using first principles density functional theory calculations, we have investigated the adsorption and diffusion of Na and K over monolayer BP to assess its suitability as Na-ion and K-ion battery anodes. The optimized adsorption energies were found to be -0.96 eV for Na and -1.54 eV for K which are sufficiently large to ensure stability and safety during operation...
February 13, 2018: ACS Applied Materials & Interfaces
Latifeh Ahmadi, Xiuming Hao, Rong Tsao
BACKGROUND: The effect of light transmission (direct and diffuse) on the phenolic compounds of five tomato cultivars was investigated under controlled conditions in greenhouses covered with different covering materials. RESULTS: The type of covering materials and type of diffusion of light simultaneously affected the reducing power of cultivars. In the present study, a two-way analysis of variance showed statistically significant differences in total phenolic compound (TPC) for the different cultivars (P<0...
February 13, 2018: Journal of the Science of Food and Agriculture
Xiang Hu, Yan Li, Guang Zeng, Jingchun Jia, Hongbing Zhan, Zhenhai Wen
The exploration of anode materials for lithium ion batteries (LIBs) or sodium ion batteries (SIBs) represents a grand technological challenge to meet the continuously increased demand for high-performance energy storage market. Here we report a facile and reliable synthetic strategy for in situ growth of few-layer MoS2 nanosheets on reduced graphene oxide (rGO) crosslinked hollow carbon spheres (HCS) with forming three dimensional (3D) network nanohybrids (MoS2-rGO/HCS). Systematic electrochemical studies demonstrate, as anode of LIBs, the as-developed MoS2-rGO/HCS can deliver a reversible capacity of 1145 mAh g-1 after 100 cycles at 0...
February 12, 2018: ACS Nano
Jun Muto, Edouard Dezamis, Odile Rigaux-Viode, Sophie Peeters, Alexandre Roux, Marc Zanello, Charles Mellerio, Xavier Sauvageon, Pascale Varlet, Catherine Oppenheim, Johan Pallud
OBJECTIVE: We assessed the impact of surgery on postoperative cognitive function and ability to work in adult patients harboring a diffuse low-grade glioma involving eloquent brain regions and having a functional-based maximal surgical resection using intraoperative corticosubcortical mapping under awake conditions. METHODS: We prospectively included 39 consecutive diffuse IDH-mutant low-grade glioma patients without preoperative and adjuvant oncological treatment and assessed preoperative (mean 24...
February 9, 2018: World Neurosurgery
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