• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Novel organic-inorganic hybrid powder SrGa12O19:Mn2+-ethyl cellulose for efficient latent fingerprint recognition via time-gated fluorescence
【24h】

Novel organic-inorganic hybrid powder SrGa12O19:Mn2+-ethyl cellulose for efficient latent fingerprint recognition via time-gated fluorescence

机译：新型有机 - 无机杂交粉SRGA12O19：MN2 + - 乙基纤维素通过时间门控荧光有效潜在的指纹识别

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Latent fingerprints (LFPs) are important evidence in crime scenes and forensic investigations, but they are invisible to the naked eye. In this work, a novel fluorescent probe was developed by integrating a narrow-band-emitting green afterglow phosphor, SrGa12O19:Mn2+ (SGO:Mn), and ethyl cellulose (EC) for the efficient visualization of LFPs. The hydrophobic interactions between the powder and lipid-rich LFPs made the ridge structures more defined and easily identifiable. The background fluorescence of the substrates was completely avoided because of the time-gated fluorescence of the afterglow phosphor. All the three levels of LFP degrees were clearly imaged due to the high sensitivity. Moreover, the SGO:Mn-EC powder was highly stable in neutral, acidic, and alkaline environments. In addition, 60 day-aged LFPs were successfully visualized by the powder. All performances showed that this strategy for LFP recognition has merits such as low cost, non-destructive nature, reliability, superior universality, and legible details. Together, these results show the great application prospects of this powder in forensic identification and criminal investigation.
机译：潜在指纹（LFP）是犯罪现场和法医调查的重要证据，但它们对肉眼看不见。在这项工作中，通过将窄带发射的绿色余量磷光体，SRGA12O19：MN2 +（SGO：Mn）和乙基纤维素（EC）与LFP的有效可视化进行了一种新的荧光探针。粉末和富含富脂质的LFP之间的疏水相互作用使脊结构更加定义并且易于识别。由于余辉磷光体的时隙荧光，完全避免了基底的背景荧光。由于高灵敏度，所有三个水平的LFP学位都被清晰地成像。此外，SgO：Mn-EC粉末在中性，酸性和碱性环境中高度稳定。此外，粉末成功地可视化了60天老化的LFP。所有表演表明，这种LFP识别策略具有低成本，无损性质，可靠性，高级普遍性和清晰的细节等优点。在一起，这些结果表明了这种粉末在法医识别和刑事侦查中的巨大应用前景。

著录项

  • 来源
    《RSC Advances》 |2020年第14期|共11页
  • 作者

    Lai Junan; Long Zhangwen; Qiu Jianbei; Zhou Dacheng; Wang Qi; Yang Yong; Hu Songhan; Wang Zhe; Zhang Ke;

  • 作者单位

    Kunming Univ Sci &

    Technol Coll Mat Sci &

    Engn Kunming 650093 Yunnan Peoples R China;

    Kunming Univ Sci &

    Technol Coll Mat Sci &

    Engn Kunming 650093 Yunnan Peoples R China;

    Kunming Univ Sci &

    Technol Coll Mat Sci &

    Engn Kunming 650093 Yunnan Peoples R China;

    Kunming Univ Sci &

    Technol Coll Mat Sci &

    Engn Kunming 650093 Yunnan Peoples R China;

    Kunming Univ Sci &

    Technol Coll Mat Sci &

    Engn Kunming 650093 Yunnan Peoples R China;

    Kunming Univ Sci &

    Technol Coll Mat Sci &

    Engn Kunming 650093 Yunnan Peoples R China;

    Kunming Univ Sci &

    Technol Coll Mat Sci &

    Engn Kunming 650093 Yunnan Peoples R China;

    Kunming Univ Sci &

    Technol Coll Mat Sci &

    Engn Kunming 650093 Yunnan Peoples R China;

    Kunming Univ Sci &

    Technol Coll Mat Sci &

    Engn Kunming 650093 Yunnan Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号