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Publication No: IN202411009163 [India] Application No: IN202411009163
Title: 6-thioguanine encapsulated albumin-gold nanocluster composition, the process for preparation and use thereof
Publication Date: 15-08-2025 File Date: 08-02-2024
Inventor(s): Nripen Chanda; Namita Jaiswal
IPC Classification: A61K31/52, A61K9/16, A61K31/519, A61K47/48
Abstract:
The present invention relates to a i.e. 6-thioguanine encapsulated albumin-gold nanocluster composition, the process of making the same, and therapeutic use thereof,  for the treatment of cancer. The synthesis of Albumin-Au-TG comprises a one-pot green approach where an aqueous HAuCl4 or NaAuCl4 solution is stirred with  bovine or human serum albumin (BSA or HSA) and 6-TG dissolved in NaOH for 12 h at 37°C, followed by addition of ethanol to precipitate the drug loaded  nanoparticles. Detailed characterization studies indicate that the loading of hydrophobic 6-thioguanine in Albumin-Au platform happens through Au-S, amide, and -S- S- bond formation. Albumin-Au-TG shows red fluorescence in solution which become helpful to illustrate the drug loading, sustained drug release behaviour and  intracellular uptake of the nanocluster composition. The MTT assay on cancer cells shows significant cell death after 72 hrs of treatment. The current formulation offers  improved solubility, circulation lifetime, bioavailability, site specific transport of purine drug molecules due to nanometric dimension, specific targeting of diseased  cells and reduced off-target toxicity.
CSIR- Central Mechanical Engineering Research Institute
CSIR- Central Mechanical Engineering Research Institute[CSIR-CMERI]
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Industrial Applications Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes] Formulations [Drugs and Pharmaceuticals] Synhtesis Procesess [Drugs and Pharmaceuticals]