Dissolution, translocation, and disposition have been shown to play a key role in the fate and effects of inhaled particles and fibers. Concepts that have been applied in the micron size range may be usefully applied to the nanoscale range, but new challenges are presented based on the small size and possible change in the dissolution:translocation relationship. The size of the component molecule itself may be on the nanoscale. Solute concentration, surface area, surface morphology, surface energy, dissolution layer properties, adsorbing species, and aggregation are relevant parameters in considering dissolution at the nanoscale. With regard to the etiopathology caused by these types of particulates, the metrics of dose (particle number, surface area, mass or shape) is not yet well defined. Analytical procedures for assessing dissolution and translocation include chemical assay and particle characterization. Leaching of substituents from particle surfaces may also be important. Compartmentalization within the respiratory tract may add another dimension of complexity. Dissolution may be a critical step for some nanoscale materials in determining fate in the environment and within the body. This review, combining aspects of particle toxicology, material science, and analytical chemistry, is intended to provide a useful basis for developing relevant dissolution assay(s) for nanoscale particles.
The current study was undertaken to further understanding of supply chain process integration. It is suggested that supply chain integration, the practice of realigning firms' operating structures, should be understood from an internal‐external perspective and a process view. Drawing upon four theories—Strategy‐Structure‐Performance framework, the resource based view of the firm, transaction cost economics, and social network analysis—and combining industry inputs, a theoretical framework of supply chain process integration is developed. It is argued that a firm's strategic priorities are key factors of supply chain process integration. Superior performance is likely to be achieved when necessary supply chain capabilities are developed through supply chain process integration.
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