Journal
BIOSENSORS & BIOELECTRONICS
Volume 67, Issue -, Pages 739-746Publisher
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2014.10.049
Keywords
Bio-barcode assay; Gold nanoparticles; Dopamine; Surface-enhanced Raman spectroscopy
Categories
Funding
- Konkuk University
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [2010-0011876]
- Leading Foreign Research Institute Recruitment Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning (MSIP) [2013K1A4A3055268]
- National Research Foundation of Korea [2010-0011876, 2013K1A4A3055268] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Dopamine is a potent neuromodulator in the brain that influences a variety of motivated behaviors and is involved in several neurologic diseases. We evaluated a bio-barcode amplification assay for its ability to detect dopamine in a mouse model with and without prior administration of the neurotoxin 1-methyl-4phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP). Our approach uses a combination of DNA barcodes and bead-based immunoassays for detecting neurotransmitters with surface-enhanced Raman spectroscopy (SEAS). This method relies on a gold nanoplate with adsorbed antibodies and gold nanoparticles that are encoded with DNA and antibodies that can sandwich the target protein captured by the nanoparticle-bound antibodies. C57BL/6 mice were infused intranasally with MPTP (25 mg/kg/day) over 7 consecutive days. At 7 and 21 days after the last administration of MPTP, dopamine was found by western blot analysis to have decreased in the midbrain by 37.44% and 92.95%, respectively. Furthermore, the Raman intensity of dopamine in the midbrains of MPTP-treated mice decreased by 56.77% and 61.12% on days 7 and 21, respectively. Our results demonstrate that the concentration of dopamine in midbrain and striatum of MPTP-treated mice can be easily detected using the bio-barcode assay, which is a rapid, high-throughput screening tool for detecting neurotransmitters. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available