Work

Onsite DADQs-assisted chemiluminescence wavelength shift from luminol µPADs to tetracyanoquinodimethane-based fluorophores enabling sensitised emission of AuNPs in point-of-source testing (PoST) multimode device

Year: 2026

Type: article

Abstract: an optical absorption. The resulting green emission from DADQs ascertains the sensitised emission of AuNPs, which emit a red signal. Moreover, the blue emission of the chemiluminiscent signal can be shifted to longer wavelengths without any complex instrumental setup, making it suitable for real-world applications. Thus, the PoST platform provides a compact, sensitive, and selective method for detecting various analytes, including biomarkers and metal ions, using small sample volumes without the requirement of bulky instrumentation. Furthermore, a PoST-reliable device could enable luminescence techniques to reach remote areas for portable on-site testing.

Source: RSC Advances

DOI: 10.1039/d6ra08375g

Authors: Anuradha Sureshrao Mohitkar, Pavar Sai Kumar, Rituparna Sinha, Sabyashachi Mishra, Sanket Goel, Subbalakshmi Jayanty

Institutions: Birla Institute of Technology and Science - Hyderabad Campus, Birla Institute of Technology and Science, Pilani, Indian Institute of Technology Kharagpur

Language: English

Topic: Biosensors and Analytical Detection

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,042

Funders: Department of Science and Technology, Ministry of Science and Technology, India, Indian Institute of Technology Kharagpur, Science and Engineering Research Board