Optical bio/chemical sensors for vitamin B₁₂ analysis in food and pharmaceuticals: state of the art, challenges, and future outlooks

• Seyed Mohammad Taghi Gharibzahedi and
• Zeynep Altintas

Beilstein J. Nanotechnol. 2025, 16, 2207–2244, doi:10.3762/bjnano.16.153

• indicated that the normal range for VB12 levels was between 142 and 724 pmol/L, with an LOD of 92 pmol/L [115]. The customized VB12 test strip detailed in Figure 3A is engineered for a lateral flow assay incorporating a blood filtration membrane, a pad for AuNP–anti-VB12 conjugates, a spacer pad to extend

Nanoarchitectonics of photothermal materials to enhance the sensitivity of lateral flow assays

• Elangovan Sarathkumar,
• Rajasekharan S. Anjana and
• Ramapurath S. Jayasree

Beilstein J. Nanotechnol. 2023, 14, 988–1003, doi:10.3762/bjnano.14.82

• advances in photothermal LFAs and their application in detecting analytes. Keywords: lateral flow assay; nanoarchitectonics; photothermal; photothermal nanomaterials; signal amplification; Introduction Lateral flow assays (LFAs) are a versatile and convenient point-of-care testing (POCT) technique used

• .) Summary of lateral flow assay applications based on the photothermal principle. Acknowledgements The Graphical Abstract has been self-made. The lateral flow strip in the image was drawn using Microsoft® PowerPoint® 2016. The remaining portion of the Graphical Abstract was created with https