The majority of reported CDs emit light in the blue or green wavelength regions
Research gap analysis derived from 3 chemistry papers in our local library.
The gap
The majority of reported CDs emit light in the blue or green wavelength regions. Fluorescence emission in the near-infrared region can facilitate higher imaging resolution and contrast. There is a need for novel green synthesis approaches for preparing NIR-CDs.
Evidence profile
Sourced from the future-work section and stated research gap and limitations section of the source papers, classified as general, drawn from work published between 2025 and 2026, spanning 2 journals. Those papers have been cited 119 times in total.
Research trend
Established — well-defined area with open sub-problems.
Supporting evidence — 3 representative gaps
- Green Synthesis of Fluorescent Carbon Dots and AI-Driven New Paradigms: A Comprehensive Review (2026) · Biosensors · doi
Promoting the greenization, intellectualization, and large-scale development of CDs - Investigating the applications of CDs in various fields, including biosensing, biomedicine, and photocatalysis - Developing new synthesis methods that can produce CDs with desired properties - Improving the control over particle size, surface functional groups, and fluorescent properties of CDs
generalfuture-work sectionevidence 5/5Keywords: promoting greenization intellectualization large-scale development cds investigating applications - Epigynum auritum-Derived Near-Infrared Carbon Dots for Bioimaging and Antimicrobial Applications (2025) · Molecules · cited 23× · doi
The majority of reported CDs emit light in the blue or green wavelength regions. Fluorescence emission in the near-infrared region can facilitate higher imaging resolution and contrast. There is a need for novel green synthesis approaches for preparing NIR-CDs.
generalstated research gapevidence 5/5Keywords: majority reported cds emit light blue green wavelength - Large Scale Synthesis of Carbon Dots and Their Applications: A Review (2025) · Molecules · cited 96× · doi
Hydrothermal and solvothermal synthesis often require prolonged reaction times, - Ensuring high purity in large-scale CDs production remains a challenge, - Traditional purification techniques are often impractical due to their time-intensive nature and high operational costs
generallimitations sectionevidence 5/5Keywords: hydrothermal solvothermal synthesis often require prolonged reaction times
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