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Towards 99mTc- and Re-Based Multifunctional Silica Platforms for Theranostic Applications


Wuillemin, Michel A; Reber, Michael J; Fox, Thomas; Spingler, Bernhard; Brühwiler, Dominik; Alberto, Roger; Braband, Henrik (2019). Towards 99mTc- and Re-Based Multifunctional Silica Platforms for Theranostic Applications. Inorganics, 7(11):134.

Abstract

Taking advantage of the radiation properties of 99mTc and 186/188Re and the photophysical characteristics of the {M(CO)3}+ moiety (M = Re), we developed a multifunctional silica platform with the theranostic pair 99mTc/Re with high potential for (nano)medical applications. Starting with a general screening to evaluate the most suitable mesoporous silica construct and the development of appropriate chelate systems, multifunctional mesoporous silica microparticles (SBA-15) were synthesized. These particles act as a model towards the synthesis of the corresponding nanoconstructs. The particles can be modified at the external surface with a targeting function and labeled with the {M(CO)3}+ moiety (M = 99mTc, Re) at the pore surface. Thus, a silica platform is realized, whose bioprofile is not altered by the loaded modalities. The described synthetic procedures can be applied to establish a target-specific theranostic nanoplatform, which enables the combination of fluorescence and radio imaging, with the possibility of radio- and chemotherapy.

Abstract

Taking advantage of the radiation properties of 99mTc and 186/188Re and the photophysical characteristics of the {M(CO)3}+ moiety (M = Re), we developed a multifunctional silica platform with the theranostic pair 99mTc/Re with high potential for (nano)medical applications. Starting with a general screening to evaluate the most suitable mesoporous silica construct and the development of appropriate chelate systems, multifunctional mesoporous silica microparticles (SBA-15) were synthesized. These particles act as a model towards the synthesis of the corresponding nanoconstructs. The particles can be modified at the external surface with a targeting function and labeled with the {M(CO)3}+ moiety (M = 99mTc, Re) at the pore surface. Thus, a silica platform is realized, whose bioprofile is not altered by the loaded modalities. The described synthetic procedures can be applied to establish a target-specific theranostic nanoplatform, which enables the combination of fluorescence and radio imaging, with the possibility of radio- and chemotherapy.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:9 November 2019
Deposited On:17 Jan 2020 13:39
Last Modified:05 Feb 2020 12:09
Publisher:MDPI Publishing
ISSN:2304-6740
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.3390/inorganics7110134
Project Information:
  • : FunderSNSF
  • : Grant ID200021_156256
  • : Project TitleTarget Specific Multimodality Nanoparticles for (Nano)Medical Applications
  • : FunderSNSF
  • : Grant ID200021_172805
  • : Project TitleMultimodal porous particles

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