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Industrial Research And Consultancy Centre
Patent
Facile Synthesis of Colloidally Stable MXenes Quantum Dots and Applications Thereof
Abstract

This invention presents a method for synthesizing stable MXene quantum dots, which are nanoscale particles, suitable for various applications. The process involves two primary steps: initially producing MXene nanosheets through a chemical slicing process aided by hydrofluoric acid (HF) treatment and sonication, followed by the conversion of these nanosheets into quantum dots via chemical slicing and hydrothermal processes. Additionally, the invention proposes a technique for exfoliating titanium aluminum carbide (Ti3AlC2) into nanosheets using a combination of etching and mechanical force-assisted liquid exfoliation. The resulting MXene quantum dots exhibit high stability and responsiveness to Near Infra Red (NIR) light. This method offers a practical and efficient means of synthesizing MXene quantum dots with desirable properties.

Societal Impact
  • Advancement in Cancer Therapy: The development of stable and responsive MXene quantum dots could significantly advance cancer therapy, particularly in photothermal treatments. These dots, with their NIR responsiveness, controlled morphology, and uniform distribution, hold potential for precise and effective tumor targeting, reducing side effects and improving patient outcomes. 
  • Environmental Safety: By utilizing aqueous solvents and eliminating the need for harmful organic solvents like dimethylsulfoxide (DMSO) and chloroform, the synthesis process enhances environmental safety. 
  • Scalability ensures broader accessibility, potentially lowering the cost of production and facilitating widespread adoption in medical facilities worldwide.
Salient technical features and Advantages of the Technology
  • The MXene QDs form a clear and stable aqueous suspension in Milli-Q water (0.5 mg/ml), indicating excellent colloidal stability. 
  • The zeta potential measurement of approximately -21 confirms the high stability and dispersion of the QDs in aqueous solutions 
  • The MXene QDs exhibit a notable photothermal response when exposed to Near Infrared (NIR) light (808 nm with 1 W/cm² density). They achieve a significant temperature increase, reaching approximately 50 °C within 5 minutes of irradiation, indicating efficient photothermal conversion.


The invention aims to provide a simple and effective method for producing MXene quantum dots from MXene nanosheets through chemical slicing and hydrothermal processes. 

  • Controlled morphology and highly uniform particle size distribution of quantum dots lead to better aqueous distribution, enhancing their performance and versatility. Simplifies MXene nanosheet production by demonstrating a new approach to exfoliate Ti3AlC2, offering a practical route for large scale production 
  • High stability and responsiveness to NIR light makes them ideal for photothermal therapy against cancer
Current Status of Technology

MXene Quantum Dots have been synthesized in the lab, and photothermal performance has been tested

Relevant Industries

Pharmaceutical Industry, Healthcare and Medical, Oncology, Nanotechnology

Applications or Domain

There are various applications in nanomedicine in photothermal therapy