ArticleAnalytical chemistry2020
Bottom-Up Fabrication of Plasmonic Nanoantenna-Based High-throughput Multiplexing Biosensors for Ultrasensitive Detection of microRNAs Directly from Cancer Patients' Plasma.
Article in Analytical chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Targeting APE1 endonuclease activity impairs metastasis and enhances genotoxic therapy response in pancreatic cancer.Journal of experimental & clinical cancer research : CR · 2026Article
- Targeting APE1 endonuclease activity impairs metastasis and enhances genotoxic therapy response in pancreatic cancer.Research square · 2025Article
- Machine learning-assisted flexible wearable device for tyrosine detection.RSC advances · 2023Article
- Label-free optical biosensors in the pandemic era.Nanophotonics (Berlin, Germany) · 2022Review
- Selective Detection and Ultrasensitive Quantification of SARS-CoV-2 IgG Antibodies in Clinical Plasma Samples Using Epitope-Modified Nanoplasmonic Biosensing Platforms.ACS applied materials & interfaces · 2022Article
- Enhanced detection sensitivity through enzyme-induced precipitate accumulation in LSPR-active nano-valleys.RSC advances · 2022Article
- Double-Resonant Nanostructured Gold Surface for Multiplexed Detection.ACS applied materials & interfaces · 2022Article
- Article
- Sensors and Biosensors in Organs-on-a-Chip Platforms.Advances in experimental medicine and biology · 2022Article
- Amplified plasmonic and microfluidic setup for DNA monitoring.Mikrochimica acta · 2021Article
- Multiplexed and High-Throughput Label-Free Detection of RNA/Spike Protein/IgG/IgM Biomarkers of SARS-CoV-2 Infection Utilizing Nanoplasmonic Biosensors.Analytical chemistry · 2021Article
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6 authors.
Funding
Abstract
There is an unmet need in clinical point-of-care (POC) cancer diagnostics for early state disease detection, which would greatly increase patient survival rates. Currently available analytical techniques for early stage cancer diagnosis do not meet the requirements for POC of a clinical setting. They are unable to provide the high demand of multiplexing, high-throughput, and ultrasensitive detection of biomarkers directly from low volume patient samples ("liquid biopsy"). To overcome these current technological bottle-necks, herein we present, for the first time, a bottom-up fabrication strategy to develop plasmonic nanoantenna-based sensors that utilize the unique localized surface plasmon resonance (LSPR) properties of chemically synthesized gold nanostructures, gold triangular nanoprisms (Au TNPs), gold nanorods (Au NRs), and gold spherical nanoparticles (Au SNPs). Our Au TNPs, NRs, and SNPs display refractive index unit (RIU) sensitivities of 318, 225, and 135 nm/RIU respectively. Based on the RIU results, we developed plasmonic nanoantenna-based multiplexing and high-throughput biosensors for the ultrasensitive assay of microRNAs. MicroRNAs are directly linked with cancer development, progression, and metastasis, thus they hold promise as next generation biomarkers for cancer diagnosis and prognosis. The developed biosensors are capable of assaying five different types of microRNAs at an attomolar detection limit. These sets of microRNAs include both oncogenic and tumor suppressor microRNAs. To demonstrate the efficiency as a POC cancer diagnostic tool, we analyzed the plasma of 20-bladder cancer patients without any sample processing steps. Importantly, our liquid biopsy-based biosensing approach is capable of differentiating healthy from early ("non-metastatic") and late ("metastatic") stage cancer with a
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