.webp&w=384&q=75){kind=logo}
Loading, please wait...
Loading, please wait...
Scientists have successfully developed innovative NIR-II bioimaging carbon dots. These dots exhibit dual-phase photoluminescence in the second near-infrared window. Because this window spans 900 to 1700 nm, it allows for significantly deeper tissue penetration. Consequently, doctors can visualize biological structures with unprecedented clarity. The researchers employed a core-shell structure to induce a charge-transfer state. This design effectively boosts the fluorescence quantum yield to 5.91% at 920 nm.
The study highlights the potential for these dots in solid-state applications. Notably, the dots maintain a high quantum yield of 3.82% even in a solid film. Furthermore, the researchers tested the dots beneath porcine tissue. Specifically, the system identified a quick response code through 3 mm of tissue. This level of penetration is vital for surgical navigation and tumor detection. In addition, the dots offer a dual-phase emission mechanism. Therefore, they are ideal for multilevel information encryption. Such features provide a robust platform for both medical sensing and anti-counterfeiting.
NIR-II carbon dots emit light at longer wavelengths. This reduces light scattering and background noise in tissues. Therefore, surgeons receive clearer images at greater depths compared to visible light probes.
Dual-phase photoluminescence allows the dots to function in both liquid and solid states. Consequently, they serve multiple roles, from injectable diagnostic agents to stable encryption films for secure patient records.
Disclaimer: This content is for informational and educational purposes only. It does not constitute professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Refer to the latest local and national guidelines for clinical practice.
References
Yu H et al. Customized NIR-II Dual-Phase Carbon Dots: Elucidating the Emission Mechanism for Smart Photonic Applications. Angew Chem Int Ed Engl. 2026 Apr 20. doi: 10.1002/anie.8078052. PMID: 42003413.
Zhu S, et al. Clinical Integration of NIR-II Fluorescence Imaging for Cancer Surgery: A Translational Evaluation of Preclinical and Intraoperative Systems. PMC. 2024.
Wang L, et al. Recent Progress on Second Near-Infrared Emitting Carbon Dots in Biomedicine. ACS Nano. 2024;18(18):11450-11475.
Read summarized clinical updates, watch expert medical content, and earn CME certifications right from your smartphone.
Open your smartphone camera to scan and install.
Novel NIR-II dual-phase carbon dots with high quantum yields enable deeper bioimaging and secure information encryption for surgical and diagnostic use....
3 months ago
Andhra Pradesh reported 10 new Covid-19 cases, taking the state tally to 49 while deaths remain at four. With 24 patients hospitalized and 16 under home isolation, the Health Department has intensified monitoring. Medical professionals should review regional distribution, diagnostic protocols, and management plans.
Today
An 11-year Swedish registry study of 618 uterine sarcoma patients found that minimally invasive surgery yielded survival comparable to open surgery in early stages. However, adjuvant chemotherapy conferred no survival benefit in localized or advanced disease, highlighting stage and histology as key outcomes.
3 days back
A cross-sectional study evaluates post-intensive care syndrome in cardiac patients 2-4 weeks post-ICU discharge, highlighting cognitive, psychological, and functional impairments and the need for structured multidisciplinary rehabilitation.
3 days back
Anterior cruciate ligament reconstruction failure lacks uniform definition. A narrative review proposes an integrative framework incorporating objective and subjective instability, persistent pain, restricted motion, graft rupture, and secondary meniscal injury to standardize clinical reporting.
3 days back
With World Obesity Atlas data warning that over 41 million Indian children are overweight or obese, ICMR and NIN have unveiled a 10-point policy roadmap. The initiative calls for mandatory front-of-pack labeling, HFSS taxes, strict marketing bans, and healthier school environments to curb non-communicable diseases.
Today
