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from article Chemical process safety
Fatal accident rate expressed as a 5-year moving average for the period 1960–1982 for a very large chemical company.
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from article Affinity monolith chromatography
General format for producing a GMA/EDMA affinity monolith where the reactants are mixed and injected into a sealed column. Heating the reactant mixture within the column results in polymerization and column formation. After heating, the column is…
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from article Affinity monolith chromatography
(a) Representative chromatogram obtained for the fast analysis of human IgG on an affinity monolithic membrane containing immobilized protein A, where peak 1 represents nonretained components in a 10-fold diluted human serum sample and peak 2 is…
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from article Shape-memory polymers
Molecular mechanism of the thermally induced shape-memory effect of a polymer network Ttrans is the thermal transition temperature related to the switching phase. (Adapted from A. Lendlein and S. Kelch, Shape-memory polymers, Angew. Chem. Int. Ed.,…
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from article Shape-memory polymers
Magnetically induced shape-memory effect of a thermoplastic shape-memory composite from nanoparticles consisting of iron(III) oxide in a silica matrix and a poly(etherurethane) exposed to an alternating magnetic field (f = 258 kHz, H = 30 kA·m−1).…
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from article Shape-memory polymers
Series of photographs illustrating the triple-shape effect of an intelligent tube. The triple shape material is a polymer network containing poly(∊-caprolactone) segments and poly(ethylene glycol) side chains. The series shows the recovery of shapes…
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from article Electrospun polymer nanofibers
A typical setup for electrospinning. The inset shows the whipping process of a nanofiber during electrospinning, as captured using a high-speed camera. (Adapted from J. Xie et al., Electrospun nanofibers for neural tissue engineering, Nanoscale,…
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from article Electrospun polymer nanofibers
Scanning electron microscopy images showing electrospun nanofibers with different alignments. (a) A nonwoven mat of random nanofibers collected on a piece of aluminum foil. (b) A uniaxially aligned array of nanofibers deposited across a rectangular…
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from article Electrospun polymer nanofibers
Fluorescence micrograph revealing the aligned projection of neurites (green). The neurites can replicate the topography of the underlying nanofibers with a uniaxial alignment.
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from article Electrospun polymer nanofibers
Superimposed fluorescence and scanning electron micrographs showing the migration of cells from the periphery to the center, as guided by a scaffold of radially aligned nanofibers. (Adapted from J. Xie et al., Radially aligned electrospun nanofibers…
