Color-Coded Polymeric Particles of Predetermined Size for Therapeutic and/or Diagnostic Applications and Related Methods
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United States of America Patent
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May 15, 2009
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Oct 25, 2004
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Various embodiments are directed to color-coded and size-calibrated polymeric particles comprising an acrylate-based hydrogel core incorporating one or more chromophores of interest, and an outer shell comprising polyphosphazenes of formula I, useful for various therapeutic and/or diagnostic procedures. In various embodiments, the color-coded and size-calibrated polymeric particles can be employed in any particle-mediated procedure, including as embolic agents, dermal fillers, and various implantable devices for a broad range of clinical and cosmetic applications. The incorporation of a particular chromophore formulation that correlates with a pre-determined size specificity for implantable and loadable polymeric particles (“color-coded and size-calibrated”) enables the visual detection and identification of particles exhibiting a particular size of interest, and minimizes the probability of user-introduced or procedural errors.
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