Modified Floating Electrode-Based Sensors for the Quantitative Monitoring of Drug Effects on Cytokine Levels Related with Inflammatory Bowel Diseases
- Authors
- Viet Anh Pham Ba; Han, Yoo Min; Cho, Youngtak; Kim, Taewan; Lee, Byung Yang; Kim, Joo Sung; Hong, Seunghun
- Issue Date
- 23-5월-2018
- Publisher
- AMER CHEMICAL SOC
- Keywords
- carbon nanotube field-effect transistors; lupeol; lipopolysaccharides; tumor necrosis factor alpha; Raw 264.7 cells
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.10, no.20, pp.17100 - 17106
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 10
- Number
- 20
- Start Page
- 17100
- End Page
- 17106
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/75498
- DOI
- 10.1021/acsami.8b04287
- ISSN
- 1944-8244
- Abstract
- Modified floating electrode-based sensors were developed to quantitatively monitor the levels of tumor necrosis factor alpha (TNF-alpha), a pro-inflammatory cytokine related with inflammatory bowel disease (IBD), and to evaluate the effect of drugs on the cytokine levels. Here, antibodies (anti-TNF-alpha) were immobilized on the floating electrodes of carbon nanotube devices, enabling selective and real-time detection of TNF-alpha among various cytokines linked to IBD. This sensor was able to measure the concentrations of TNF-alpha with a detection limit of 1 pg/L, allowing the quantitative estimation of TNF-alpha secretion from mouse macrophage Raw 264.7 cells stimulated by lipopolysaccharides (LPS). Notably, this method also allowed us to monitor the anti-inflammatory effect of a drug, lupeol, on the activation of the LPS-induced nuclear factor kappa B signaling in Raw 264.7 cells. These results indicate that our novel TNF sensor can be a versatile tool for biomedical research and clinical applications such as screening drug effects and monitoring inflammation levels.
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Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
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