Three-Dimensional Polymeric Biointerface for Ultra-Sensitive and Selective Detection of Low-Molecular-Weight Biomarker Using Semiconductor-Based Biosensor

2018 ◽  
Vol 85 (9) ◽  
pp. 9-14
Author(s):  
Shoichi Nishitani ◽  
Toshiya Sakata
Keyword(s):  
Molecular Weight ◽  
Three Dimensional ◽  
Low Molecular Weight ◽  
Selective Detection

A diffusion wake model for tracer ultrastructure-permeability studies in microvessels

1995 ◽  
Vol 269 (6) ◽  
pp. H2124-H2140 ◽  
Author(s):  
B. M. Fu ◽  
F. E. Curry ◽  
S. Weinbaum
Keyword(s):  
Molecular Weight ◽  
Three Dimensional ◽  
Threshold Concentration ◽  
Time Dependent ◽  
Surrounding Tissue ◽  
Low Molecular Weight ◽  
Electron Microscopic ◽  
Small Pore ◽  
Tissue Space ◽  
Transvascular Exchange

We developed a time-dependent diffusion model for analyzing the concentration profiles of low-molecular-weight tracers in the interendothelial clefts of the capillary wall that takes into account the three-dimensional time-dependent filling of the surrounding tissue space. The model provides a connecting link between two methods to investigate transvascular exchange: electron-microscopic experiments to study the time-dependent wake formed by low-molecular-weight tracers (such as lanthanum nitrate) on the tissue side of the junction strand discontinuities in the interendothelial cleft of frog mesentery capillaries (R. H. Adamson and C. C. Michel. J. Physiol. Lond. 466: 303-327, 1993) and confocal-microscopic experiments to measure the spread of low-molecular-weight fluorescent tracers in the tissue space surrounding these microvessels (R. H. Adamson, J. F. Lenz, and F. E. Curry, Microcirculation 1: 251-265, 1994). We show that the interpretation of the presence of tracer as an all-or-none indication of a pathway across the junctional strand is likely to be incorrect for small solutes. Large-pore pathways, in which the local tracer flux densities are high, reach a threshold concentration for detection and are likely to be detected after relatively short perfusion times, whereas distributed small-pore pathways may not be detected until the tissue concentrations surrounding the entire vessel approach threshold concentrations. The analysis using this approach supports the hypothesis advanced by Fu et al. (J. Biomech. Eng. 116: 502-513, 1994) that the principal pathways for water and solutes of < 1.0 nm diameter across the interendothelial cleft may be different and suggests new experiments to test this hypothesis.

Three dimensional heteroatom-doped carbon composite film for flexible solid-state supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (6) ◽  
pp. 4483-4489 ◽  
Author(s):  
Ben-Xue Zou ◽  
You Gao ◽  
Bo Liu ◽  
Yongpeng Yu ◽  
Yanhua Lu
Keyword(s):  
Molecular Weight ◽  
Solid State ◽  
Composite Film ◽  
Active Carbon ◽  
Resin Composite ◽  
Three Dimensional ◽  
Carbon Composite ◽  
Low Molecular Weight ◽  
Supercapacitor Electrode ◽  
Flexible Supercapacitor

Three dimensional (3D) heteroatom-doped active carbon as a flexible supercapacitor electrode is explored with a starting material of silkworm fibers and low molecular weight phenol resin composite.

scholarly journals Selective detection methods for gas chromatography of acetaldehyde and low molecular weight oxygen-containing compounds.

1985 ◽  
Vol 34 (6) ◽  
pp. 373-376 ◽  
Author(s):  
Nobuyuki KASHIHIRA ◽  
Kazuo MAKINO ◽  
Kuwako KIRITA ◽  
Yoshichika WATANABE
Keyword(s):  
Molecular Weight ◽  
Gas Chromatography ◽  
Detection Methods ◽  
Low Molecular Weight ◽  
Selective Detection

Interaction between Carbon Black and Polymer in Cured Elastomers

1951 ◽  
Vol 24 (3) ◽  
pp. 597-615
Author(s):  
R. S. Stearns ◽  
B. L. Johnson
Keyword(s):  
Molecular Weight ◽  
Carbon Black ◽  
Chemical Bonding ◽  
Physical Adsorption ◽  
Three Dimensional ◽  
Physical Property ◽  
Carbon Black Particle ◽  
Low Molecular Weight ◽  
Carbon Blacks ◽  
Black Particle

Abstract This research was initiated to determine whether the interaction at the interface between the surface of finely divided solids, such as carbon black, and cured elastomers is primarily physical or chemical in nature. Further, it was desired to correlate some physical property of the reinforced stock with the surface properties of the solid pigment. Through an examination of the thermodynamic changes accompanying the deformation of loaded stocks it is shown that physical adsorption of the van der Waals type occurring at the interface between pigment and polymer is inadequate to account for the experimental observations. However, if chemical bonding occurs at the interface between polymer and pigment, then the entropy of deformation of the stock may be correlated with the extent of this bonding. By a calorimetric method it was demonstrated that the surface of a carbon black particle contains sites that react with bromine to liberate the same amount of heat as low molecular-weight olefins. It is, therefore, proposed that a carbon black particle be considered as a disordered agglomerate of polymeric benzenoid type molecules which contain around their perimeters various functional groups. The existence of olefinic-type unsaturation on the surface of carbon blacks suggests strongly that, in the case of carbon blacks, the polymer and pigment are combined chemically through pigment-sulfur-polymer bonds into a continuous three-dimensional cross-linked matrix.

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