Instytut Podstawowych Problemów Techniki
Polskiej Akademii Nauk

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Dongkyu Lee


Ostatnie publikacje
1.  Achadu Ojodomo J., Nwaji N., Lee D., Lee J., Akinoglu E.M., Giersig M., Park Enoch Y., 3D hierarchically porous magnetic molybdenum trioxide@gold nanospheres as a nanogap-enhanced Raman scattering biosensor for SARS-CoV-2, Nanoscale Advances, ISSN: 2516-0230, DOI: 10.1039/d1na00746g, Vol.4, pp.871-883, 2022

Streszczenie:
The global pandemic of COVID-19 is an example of how quickly a disease-causing virus can take root and threaten our civilization. Nowadays, ultrasensitive and rapid detection of contagious pathogens is in high demand. Here, we present a novel hierarchically porous 3-dimensional magnetic molybdenum trioxide–polydopamine-gold functionalized nanosphere (3D mag-MoO3–PDA@Au NS) composed of plasmonic, semiconductor, and magnetic nanoparticles as a multifunctional nanosculptured hybrid. Based on the synthesized 3D mag-MoO3–PDA@Au NS, a universal “plug and play” biosensor for pathogens is proposed. Specifically, a magnetically-induced nanogap-enhanced Raman scattering (MINERS) detection platform was developed using the 3D nanostructure. Through a magnetic actuation process, the MINERS system overcomes Raman signal stability and reproducibility challenges for the ultrasensitive detection of SARS-CoV-2 spike protein over a wide dynamic range up to a detection limit of 10−15 g mL−1. The proposed MINERS platform will facilitate the broader use of Raman spectroscopy as a powerful analytical detection tool in diverse fields.

Afiliacje autorów:
Achadu Ojodomo J. - inna afiliacja
Nwaji N. - inna afiliacja
Lee D. - inna afiliacja
Lee J. - Lexington High School (US)
Akinoglu E.M. - University of Melbourne (AU)
Giersig M. - IPPT PAN
Park Enoch Y. - inna afiliacja
20p.

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