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| 題名: | Label-Free, Smartphone-Based, and Sensitive Nano-Structural Liquid Crystal Aligned by Ceramic Silicon Compound–Constructed DMOAP-Based Biosensor for the Detection of Urine Albumin |
| 作者: | 蕭宇成
Er-Yuan Chuang, Ping-Yuan Lin, Po-Feng Wang, Tsung-Rong Kuo, Chih-Hwa Chen, Yankuba B Manga, Yu-Cheng Hsiao |
| 貢獻者: | 生醫光機電研究所 |
| 關鍵詞: | Keywords: biosensor;bovine serum albumin;ceramic silicon compound;constructed DMOAP;label-free;point-of-care;polymer-stabilized cholesteric liquid crystal;trimethoxysilyl |
| 日期: | 2021-02 |
| 上傳時間: | 2025-04-01 19:35:12 (UTC+8) |
| 摘要: | Abstract
Introduction: The sensitive interfacial interaction of liquid crystals (LC) holds potential for precision biosensors. In the past, the developments of LC biosensors were limited by the complicated manufacturing process, which hinders commercialization and wider applications of such devices. In this report, we demonstrate the first nano-structural polymeric stabilized-cholesteric LC (PSCLC) thin films to be a new label-free biosensing technology.
Methods: The transmission spectra of PSCLC devices were measured by the fiber-optic spectrometer with high-resolution. In addition, a smartphone was set on the stage, and the camera of smartphone was placed and aligned with a set of lenses embedded in the designed stage. To decrease the chromatic and spherical aberrations, an achromatic lens set composition, consisting of both dual-convex lens and concave-plane lens, was applied for measuring and imaging the PSCLC texture. The average and the estimated standard deviation (SD) were used to present quantitative experimental results. The test BSA was immobilized and fulfilled by the ceramic silicon-constructed DMOAP-coated glass in aqueous BSA solutions at 1 mg/mL, 1 ?g/mL, and 1 ng/mL.
Results: The fabrication process of PSCLC is much simplified compared to previous LC biosensors. The color of PSCLC biosensor altered with the BSA concentration, making detection result easy to read. The detection limit of 1 ng/mL is achieved for label-free PSCLC biosensor. The PSCLC biosensor was able to successfully detect due to the albumin concentration's alteration, with a linear range of 1 ng/mL-2 mg/mL. Thus, the label-free-proposed design-integrated nanoscale PSCLCs smartphone-based biosensor could successfully detect BSA in a preclinical urine sample.
Conclusion: Finally, we propose a design to integrate the PSCLC biosensor with a smartphone. The PSCLC owns potential for high performance, low cost for detecting various disease biomarkers in home use. Owing to its great potential for high performance and low cost, the PSCLC biosensors can be used as a label-free point-of-care for detecting various disease biomarkers for patients in care homes. |
| 關聯: | Int J Nanomedicine. 2021 Feb 4; 16: 763-773 |
| 描述: | 【110-1 升等】臺北醫學大學教師升等專門著作
職別：專任
送審等級：副教授
著作送審 |
| 資料類型: | article |
| 顯示於類別: | [教師升等送審著作] 110
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