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Photoluminescence: Applications01:14

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Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
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Fluorescent cellulosic composites based on carbon dots: Recent advances, developments, and applications.

Maryam Saleh Mohammadnia1, Hossein Roghani-Mamaqani2, Hanieh Mardani1

  • 1Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box: 51335-1996, Tabriz, Iran.

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This review explores combining fluorescent carbon dots (CDs) with cellulosic materials to create advanced smart fluorescent materials for diverse applications, including sensing and bioimaging.

Keywords:
BioimagingCarbon dotsCelluloseDrug deliveryFluorescenceSensorSmart ink

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemistry

Background:

  • Cellulose derivatives exhibit fluorescence, enabling advanced applications.
  • Carbon dots (CDs) offer desirable properties like high photoluminescence, stability, and easy functionalization.
  • Integrating CDs with cellulosic materials can enhance their properties for novel applications.

Purpose of the Study:

  • To review methods for incorporating carbon dots (CDs) and graphene quantum dots (GQDs) into cellulosic materials.
  • To highlight the resulting smart fluorescent materials and their diverse applications.
  • To discuss challenges and future directions in this field.

Main Methods:

  • Summarizing chemical and physical incorporation techniques of CDs and GQDs into various cellulosic materials.
  • Reviewing literature on the synthesis and characterization of these composite materials.
  • Analyzing the properties and performance of the resulting fluorescent cellulosic materials.

Main Results:

  • Successful integration of CDs and GQDs into cellulosic matrices yields smart fluorescent materials.
  • These materials demonstrate potential in films, catalysis, bioimaging, drug delivery, and anticounterfeiting.
  • The composites function as effective fluorescence chemosensors for detecting pH, temperature, ions, glucose, and aromatic amines.

Conclusions:

  • The combination of CDs with cellulosic materials offers a promising route to advanced fluorescent materials.
  • These materials have broad applicability across various scientific and technological domains.
  • Further research is encouraged to explore the full potential of these fluorescent cellulosic composites.