Paul Todd
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View article: The Role of Signal in Producing Saltatory Approach to Cryptic Stationary Targets
The Role of Signal in Producing Saltatory Approach to Cryptic Stationary Targets Open
Saltatory movement strategies in animal search are well known, but their role in pursuit and localization of targets is less so. There are multiple features of forager-target interactions that may generate saltatory forager movement during…
View article: Strategies, Research Priorities, and Challenges for the Exploration of Space Beyond Low Earth Orbit
Strategies, Research Priorities, and Challenges for the Exploration of Space Beyond Low Earth Orbit Open
NASA's recent emphasis on human exploration of the Moon and, ultimately, Mars necessitates a transition from a focus of its research in the biological sciences from Low Earth Orbit (LEO) to platforms beyond LEO. Fundamental research questi…
View article: Nanomaterial Endocytosis: Quantification of Adsorption and Ingestion Mechanisms
Nanomaterial Endocytosis: Quantification of Adsorption and Ingestion Mechanisms Open
The widespread use of nanomaterials in vaccines, therapeutics, and industrial applications creates an increasing demand for understanding their ingestion by living cells. Researchers in the field have called for a more robust understanding…
View article: Continuous Flow Labeling and In-Line Magnetic Separation of Cells
Continuous Flow Labeling and In-Line Magnetic Separation of Cells Open
There is an identified need for point-of-care diagnostic systems for detecting and counting specific rare types of circulating cells in blood. By adequately labeling such cells with immunomagnetic beads and quantum dots, they can be effici…
View article: Effects of microgravity crystallization on a ligand-induced RNA crystal phase transition
Effects of microgravity crystallization on a ligand-induced RNA crystal phase transition Open
View article: Magnetic particle characterization—magnetophoretic mobility and particle size
Magnetic particle characterization—magnetophoretic mobility and particle size Open
Quantitative characterization of magnetic particles is useful for analysis and separation of labeled cells and magnetic particles. A particle velocimeter is used to directly measure the magnetophoretic mobility, size, and other parameters …
View article: Continuous Quadrupole Magnetic Separation of Islets during Digestion Improves Purified Porcine Islet Viability
Continuous Quadrupole Magnetic Separation of Islets during Digestion Improves Purified Porcine Islet Viability Open
Islet transplantation (ITx) is an emerging and promising therapy for patients with uncontrolled type 1 diabetes. The islet isolation and purification processes require exposure to extended cold ischemia, warm-enzymatic digestion, mechanica…