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Lateral flow immunoassay using plasmonic scattering

delete2025-04-09
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OA
AI
B
Bobin Lee
B
Byungho Park
D
D. S. Kim
C
Chaewon Jung
J
Jun Hyeok Park
J
Ji‐Ho Park
Y
Y. Lee
M
Myung‐Geun Shin
M
Min‐Gon Kim
N
Nan Ei Yu
J
Joon Heon Kim
K
Kihyeun Kim *
DOI:10.1038/s41467-025-58663-zdelete
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摘要

摘要

En 中文
侧向流免疫分析法(LFIA)是实际应用中即时检测(POC)最成功的传感平台之一。然而,在不牺牲LFIA固有优势(如快速、稳健的操作、低成本和肉眼检测)的前提下实现PCR级别的灵敏度,仍然是一个主要挑战。本研究提出了一种利用等离激元散射的LFIA,通过使硝酸纤维素膜透明化并在膜下方放置光吸收衬底卡片实现。该LFIA最小化了其基质背景信号,显著提高了灵敏度,并能在无光学设备的情况下实现肉眼检测金纳米粒子的等离激元散射信号。在流感A检测中,本研究的等离激元散射利用型LFIA的检测限比商业LFIA高出约2600-4400倍。此外,其在临床验证中表现出90%的灵敏度,接近PCR级别,而商业LFIA的灵敏度为23-30%。利用等离激元散射的LFIA在POC诊断中发挥了开创性作用,并显著推动了后续研究。
Keyword:
GOLD SUPERPARTICLES
RAMAN-SPECTROSCOPY
INFLUENZA-VIRUS
NANOPARTICLES
SENSITIVITY
ASSAYS
QUANTIFICATION
ABSORPTION
EXCITATION
SIZE

期刊

Nature Communications 封面图
Nature Communications
IF:
15.7
论文数:
9.4W
被引数:
91.2W

机构

G
Gwangju Inst Sci and Technol GIST
学者数:
196
论文数: 68
被引数: 14
N
nanobiolab inc
学者数:
1
论文数: 1
被引数: 0
C
Chonnam Natl Univ
学者数:
918
论文数: 481
被引数: 122
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