CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Jiang Guo,Junlan Guo,Jing Gao,Jiexin Chen,Ya Yang,Yue Yang,Lingling Zheng,Yanyan Li,Lei Zhao,Bin Deng,Ruijin Yu
Novel orange-red-emitting LaNb 2 VO 9 (LNV): x Sm 3+ ( x = 0–35 mol%) phosphors were successfully synthesized through the traditional high-temperature solid-state reaction method. The crystal structure, SEM images, particle size distribution , XRD spectra, optimal concentration, zero-thermal-quenching behaviors, and luminescent stability of the samples were exhaustively studied. In particular, the phosphors presented broadband excitation that consisted of O 2− →V 5+ and O 2− →Sm 3+ charge transfer bands (CTB). Under 308 nm excitation, LNV:5 mol%Sm 3+ phosphor emitted orange-red light with high intensity at the wavelength of 598 nm due to the 4 G 5/2 → 6 H 7/2 transition of Sm 3+ ions. The sample with the optimal doping concentration of 5 mol% exhibited zero-thermal-quenching. Furthermore, a white light-emitting diode (WLED) with the Commission Internationale de L'Eclairage (CIE) coordinate of (0.347, 0.348) and the superior color rendering index (CRI, R a ) of 90 was smoothly fabricated. With the LNV: 5 mol%Sm 3+ phosphor, the level 1–3 structure of latent fingerprints (LFPs) and the detailed features of lip prints were clearly detected under ultraviolet irradiation. Ultimately, the phosphor effectively detected LFPs in various daily life circumstances. Consequently, the zero-thermal-quenching orange-red LNV:Sm 3+ phosphors have several promising applications in WLEDs and personal identification.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
Molecular Genetics & Genomic Medicine
·
2020
·Vol. 8
·期 9
·e1419
·
IF 1.995
Shuangshuang Wang,Feng Song,Mingkun Xie,Ke Zhang,Bowen Xie,Zhanglong Huang,Haibo Luo
Background Short tandem repeat (STR) markers play a significant role in genetic applications and have proved to be effective for the personal identification in forensic medicine. In this study, a six-dye multiplex composed of 23 autosomal STR loci ( TH01 , D3S1358 , Penta D , D6S1043 , D21S11 , TPOX , D1S1656 , D12S391 , Penta E , D10S1248 , D22S1045 , D19S433 , D8S1179 , D2S1338 , D2S441 , D18S51 , vWA , FGA , D16S539 , CSF1PO , D13S317 , D5S818 , D7S820 ), one Y chromosome STR ( DYS391 ), two internal quality control markers (Quality Sensor QS1 and QS2), and Amelogenin was evaluated. Methods Evaluation studies, including PCR-based studies, sensitivity studies, species specificity studies, stability studies, DNA mixture studies, concordance studies, and precision evaluations were performed according to the guidelines of “Validation Guidelines for Forensic DNA Analysis Methods (2016)” by the Scientific Working Group on DNA Analysis Methods (SWGDAM). In addition, the forensic characteristics of 357 unrelated male samples from Han and Hui populations in China were investigated using 27 markers. Results Full STR profiles were obtained from different reaction volumes (5 ~ 25 μl), cycle numbers (28 ~ 34 cycles) and annealing temperatures (58 ~ 62°C). All STR profiles were obtained at humic acid concentration of up to 200 ng/μl and hematin concentration of up to 500 μM. No peaks were observed in most common animal samples except two innovative internal PCR controls (Quality Sensor QS1 and QS2). The six-dye multiplex showed a notably high value for the combined probability of exclusion (CPE), exhibiting values of with 0.99999999977688 in the Han population and 0.999999999583875 in the Hui population. The values of combined probability of discrimination (CPD) were 0.999999999999999999999999999997453 in the Han population and 0. 999999999999999999999999999994398 in the Hui population. In addition, concordance studies showed that there was no difference with the AGCU Express Marker 22 Kit. Conclusion The results indicated that the Investigator ® 26plex QS Kit is a robust, reliable, and suitable tool for forensic analysis and databasing.
研究领域:
法医学
·
遗传学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）