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Volume 30, Issue 35
  • ISSN: 1381-6128
  • E-ISSN: 1873-4286

Abstract

Introduction

As cancer therapy progresses, challenges remain due to the inherent drawbacks 
of conventional treatments such as chemotherapy, gene therapy, radiation therapy, and surgical removal. Moreover, due to their associated side effects, conventional treatments affect both cancerous and normal cells, making photodynamic therapy (PDT) an attractive alternative.

Methods

As a result of its minimal toxicity, exceptional specificity, and non-invasive characteristics, 
PDT represents an innovative and highly promising cancer treatment strategy using photosensitizers (PSs) and precise wavelength excitation light to introduce reactive oxygen species (ROS) in the vicinity of cancer cells.

Results

Poor aqueous solubility and decreased sensitivity of Rhodamine 6G (R6G) prevent its use as a photosensitizer in PDT, necessitating the development of oxidized sodium alginate (OSA) hydrogelated nanocarriers to enhance its bioavailability, targeted distribution, and ROS-quantum yield. The ROS quantum yield increased from 0.30 in an aqueous environment to 0.51 when using alginate-based formulations, and it was further enhanced to 0.81 in the case of OSA.

Conclusion

Furthermore, the nanoformulations produced fluorescent signals suitable for use as cellular 
imaging agents, demonstrating contrast-enhancing capabilities in medical imaging and showing minimal toxicity.

© 2024 Bentham Science Publishers
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2024-12-23

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/content/journals/cpd/10.2174/0113816128307606240722072006
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Encapsulating Rhodamine 6G in Oxidized Sodium Alginate Polymeric Hydrogel for Photodynamically Inactivating Cancer Cells
Curr. Pharm. Des. 30, 2801 (2024); https://doi.org/10.2174/0113816128307606240722072006
/content/journals/cpd/10.2174/0113816128307606240722072006
/content/journals/cpd/10.2174/0113816128307606240722072006
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  • Article Type:     Research Article
Keyword(s): alginate nanoparticle; cancer cells; oxidized sodium alginate; Photodynamic therapy; Rhodamine 6G; theranostic

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