A self-assembly stacking on liquid-liquid interface of intercalated smectite silicates results in nematic structure and self-aligning nature, was revealed in this study. The stacking crystalline of polyoxypropylene am...
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A novel strategy was developed In order to prepare monolayered polyaniline (PANI) submicrospheres on polymer substrates. The strategy involved two main steps, i.e., photografting of acrylate acid (AA) onto the surface...
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The methyl methacrylate(MMA)/1-propylmethacrylate-polyhedral oligomeric silsesquioxane(PM-POSS) copolymers were synthesized via atom transfer radical polymerization with CuBr as *** unreacted PM-POSS monomer could be ...
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The methyl methacrylate(MMA)/1-propylmethacrylate-polyhedral oligomeric silsesquioxane(PM-POSS) copolymers were synthesized via atom transfer radical polymerization with CuBr as *** unreacted PM-POSS monomer could be removed completely by washing the copolymerization product with *** copolymers were characterized with ~1H-NMR,X-ray diffraction,differential scanning calorimetry,thermogravimetric analysis and gel permeation *** increasing PM-POSS feed ratio,the total conversi...
Many physical and physiological signals exhibit complex scale-invariant features characterized by 1/f scaling and long-range power-law correlations, indicating a possibly common control mechanism. Specifically, it has...
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Many physical and physiological signals exhibit complex scale-invariant features characterized by 1/f scaling and long-range power-law correlations, indicating a possibly common control mechanism. Specifically, it has been suggested that dynamical processes, influenced by inputs and feedback on multiple time scales, may be sufficient to give rise to 1/f scaling and scale invariance. Two examples of physiologic signals that are the output of hierarchical multiscale physiologic systems under neural control are the human heartbeat and human gait. Here we show that while both cardiac interbeat interval and gait interstride interval time series under healthy conditions have comparable 1/f scaling, they still may belong to different complexity classes. Our analysis of the multifractal scaling exponents of the fluctuations in these two signals demonstrates that in contrast to the multifractal behavior found in healthy heartbeat dynamics, gait time series exhibit less complex, close to monofractal behavior. Further, we find strong anticorrelations in the sign and close to random behavior for the magnitude of gait fluctuations at short and intermediate time scales, in contrast to weak anticorrelations in the sign and strong positive correlation for the magnitude of heartbeat interval fluctuations—suggesting that the neural mechanisms of cardiac and gait control exhibit different linear and nonlinear features. These findings are of interest because they underscore the limitations of traditional two-point correlation methods in fully characterizing physiological and physical dynamics. In addition, these results suggest that different mechanisms of control may be responsible for varying levels of complexity observed in physiological systems under neural regulation and in physical systems that possess similar 1/f scaling.
The use of near-infrared plasmon resonance of gold nanorods (NR) to offer an integrated platform for multiplexed Raman detection and remote-controlled photothermal heating is analyzed. Surface enhanced Raman scatterin...
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The use of near-infrared plasmon resonance of gold nanorods (NR) to offer an integrated platform for multiplexed Raman detection and remote-controlled photothermal heating is analyzed. Surface enhanced Raman scattering (SERS)-coded NRs were efficiently detected following subcutaneous or intratumoral injection and enabled remote photothermal tumor heating to ablative temperatures. Cetyltrimethylammonium bromide (CTAB)-coated gold NRs were bought from Nanopartz with a peak plasmon resonance at 790 nm. NRs were purified further with multiple rounds of centrifugation using molecular weight cutoff centrifugal filters and stored at 200 pm at 4C. The SERS intensities of NRs coated with different dyes were compared using ethanol as an internal standard. The best NRs were selected by comparing the peak height ratio of the dye's most intense SERS peak to the peak height of the ethanol vibration at 879 cm-1 used as an internal standard.
Mikrozylinder mit mehreren Kompartimenten lassen sich mit einer Kombination aus elektrohydrodynamischem Spinnen und Mikroabtrennen herstellen, wie J. Lahann et al. in der Zuschrift auf S. 4659 ff. beschreiben. Die Zah...
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Mikrozylinder mit mehreren Kompartimenten lassen sich mit einer Kombination aus elektrohydrodynamischem Spinnen und Mikroabtrennen herstellen, wie J. Lahann et al. in der Zuschrift auf S. 4659 ff. beschreiben. Die Zahl der einzelnen Kompartimente, ihre relative Orientierung, chemische Zusammensetzung und Funktionalität sowie das Seitenverhältnis können maßgeschneidert eingestellt werden. Jede Farbe in den Längs‐ und Querschnitt‐Mikrographen entspricht einem individuellen Kompartiment.
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