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PAN P, WU SG. Direct Determination of Ascorbic Acid in Fruits and Vegetables by Positive Scan Polarization Reverse Catalytic Voltammetry. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1016/s1872-2040(19)61175-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kim JY, Park JH, Kim MI, Lee HH, Kim HL, Jeong KS, Moon SO, Kang PW, Park KW, Lee YH, Chun BW. Identification of female-specific blood stains using a 17β-estradiol-targeted aptamer-based sensor. Int J Legal Med 2017; 132:91-98. [PMID: 29086052 DOI: 10.1007/s00414-017-1718-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 10/11/2017] [Indexed: 01/08/2023]
Abstract
Blood stain evidence obtained from a violent crime scene provides decisive clues that can enable a case to be solved through forensic analyses such as genetic identification. However, collected samples usually contain a mixture of biological material from different sources, making genetic identification difficult. To address this issue, we developed an activatable aptamer sensor targeting 17β-estradiol for detection of female-specific blood in mixed samples. With the sensor, we were able to detect blood originating from females using a variable light source (495 nm). The sensor was especially sensitive to blood from young females (10-40 years) but not to blood from older females (≥ 50 years). Genomic DNA was extracted from the female blood specimens identified by this method and used for quantification and short tandem repeat genotyping. We confirmed that there was no fluorescence interference from the aptamer sensor. These results indicate that this novel aptamer sensor can be used to analyze evidentiary blood samples and thereby facilitate subsequent genetic identification.
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Affiliation(s)
- Joo-Young Kim
- Crime-scene DNA Section, National Forensic Service, Gwangju Institute, Gwangju, 57231, Republic of Korea
| | - Jung-Hyun Park
- Mibyeong Research Center, Korea Institute of Oriental Medicine, Daejeon, 34054, Republic of Korea
| | - Man Il Kim
- Crime-scene DNA Section, National Forensic Service, Gwangju Institute, Gwangju, 57231, Republic of Korea
| | - Hye Hyeon Lee
- Crime-scene DNA Section, National Forensic Service, Gwangju Institute, Gwangju, 57231, Republic of Korea
| | - Hye Lim Kim
- Crime-scene DNA Section, National Forensic Service, Gwangju Institute, Gwangju, 57231, Republic of Korea
| | - Kyu-Sik Jeong
- Forensic DNA Division, National Forensic Service, Wonju, 26460, Republic of Korea
| | - Sang-Ok Moon
- Crime-scene DNA Section, National Forensic Service, Gwangju Institute, Gwangju, 57231, Republic of Korea
| | - Pil-Won Kang
- Crime-scene DNA Section, National Forensic Service, Gwangju Institute, Gwangju, 57231, Republic of Korea
| | - Ki-Won Park
- Forensic DNA Division, National Forensic Service, Wonju, 26460, Republic of Korea
| | - Yang-Han Lee
- Forensic DNA Division, National Forensic Service, Wonju, 26460, Republic of Korea
| | - Byung-Won Chun
- Forensic DNA Division, National Forensic Service, Wonju, 26460, Republic of Korea.
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