Recent Advances in Silica-Nanomaterial-Assisted Lateral Flow Assay
BIOENGINEERING-BASEL(2022)
Abstract
Lateral flow assays (LFAs) have attracted much attention as rapid and affordable point-of-care devices for medical diagnostics. The global SARS-CoV-2 pandemic has further highlighted the importance of LFAs. Many efforts have been made to enhance the sensitivity of LFAs. In recent years, silica nanomaterials have been used to either amplify the signal of label materials or provide stability, resulting in better detection performance. In this review, the recent progress of silica-nanomaterial-assisted LFAs is summarized. The impact of the structure of silica nanomaterials on LFA performance, the challenges and prospects in this research area are also discussed.
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Key words
lateral flow assay, point-of-care device, silica nanomaterials, signal amplification
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