Volume 19, Issue 25 2207324
Research Article

Promising Mass-Productive 4-Inch Commercial SERS Sensor with Particle in Micro-Nano Porous Ag/Si/Ag Structure Using in Auxiliary Diagnosis of Early Lung Cancer

Yuanmei Gao

Yuanmei Gao

Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Electronics, Shandong Normal University, Jinan, Shandong, 250014 P.R. China

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Hongyu Zhu

Hongyu Zhu

Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Electronics, Shandong Normal University, Jinan, Shandong, 250014 P.R. China

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Xiaoxiong Wang

Xiaoxiong Wang

College of Physics, Qingdao University, Qingdao, 266071 P.R. China

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Rong Shen

Rong Shen

Shandong Provincial Hospital, Shandong First Medical University, Jinan, Shandong, 250021 P.R. China

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Xiaoming Zhou

Xiaoming Zhou

Shandong Provincial Hospital, Shandong First Medical University, Jinan, Shandong, 250021 P.R. China

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Xiaofei Zhao

Xiaofei Zhao

Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Electronics, Shandong Normal University, Jinan, Shandong, 250014 P.R. China

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Zhen Li

Zhen Li

Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Electronics, Shandong Normal University, Jinan, Shandong, 250014 P.R. China

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Chao Zhang

Chao Zhang

Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Electronics, Shandong Normal University, Jinan, Shandong, 250014 P.R. China

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Fengcai Lei

Corresponding Author

Fengcai Lei

College of Chemistry, Chemical Engineering and Materials Science, Institute of Biomedical Sciences, Shandong Normal University, Jinan, Shandong, 250014 P.R. China

E-mail: [email protected]; [email protected]

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Jing Yu

Corresponding Author

Jing Yu

Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Electronics, Shandong Normal University, Jinan, Shandong, 250014 P.R. China

E-mail: [email protected]; [email protected]

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First published: 18 March 2023
Citations: 24

Abstract

The construction of commercial surface enhanced Raman scattering (SERS) sensors suitable for clinical applications is a pending problem, which is heavily limited by the low production of high-performance SERS bases, because they usually require fine or complicated micro/nano structures. To solve this issue, herein, a promising mass-productive 4-inch ultrasensitive SERS substrate available for early lung cancer diagnosis is proposed, which is designed with a special architecture of particle in micro-nano porous structure. Benefitting from the effective cascaded electric field coupling inside the particle-in-cavity structure and efficient Knudsen diffusion of molecules within the nanohole, the substrate exhibits remarkable SERS performance for gaseous malignancy biomarker, with the limit of detection is 0.1 ppb and the average relative standard deviation value at different scales (from cm2 to µm2) is ≈16.5%. In practical application, this large-sized sensor can be further divided into small ones (1 × 1 cm2), and more than 65 chips will be obtained from just one 4-inch wafer, greatly increasing the output of commercial SERS sensor. Further, a medical breath bag composed of this small chip is designed and studied in detail here, which suggested high-specificity recognition for lung cancer biomarker in mixed mimetic exhalation tests.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.;

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