Laser mass spectrometer microscopy for analysis of cultural heritage objects

用于分析文化遗产的激光质谱显微镜

• 批准号: 1241779
• 负责人: Mattanjah de Vries
• 金额: $ 33.03万
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1241779&HistoricalAwards=false
• 关键词: Laser; mass; spectrometer; microscopy; analysis

With support from the Chemical Measurement and Imaging Program in the Division of Chemistry and Office of Multidisciplinary Activities, a new collaborative project between Professor de Vries and his group at the University of California-Santa Barbara (UCSB) and researchers at the Getty Conservation Institute (GCI) in Los Angeles will develop a new technique capable of unambiguously identifying organic components in cultural heritage objects. The new method is based on a specialized form of laser mass spectrometry, combined with microscopy in a unique instrument. This approach will have the spatial resolution necessary to isolate small quantities of organic material in discrete layers of tiny mounted samples from paintings (called cross sections), and the sensitivity to provide molecularly specific identification of materials present in very low concentrations. The unambiguous identification of artists' materials at a molecular and microstructural level can elucidate historic geological or biological material sources, manufacturing processes and trade routes. An understanding of works of art additionally assists conservators and curators develop the storage and exhibition protocols necessary to protect and preserve works of art, and assists art historians in their investigations into the relationships between an object, the artist, and the historical and cultural environments in which it was created. The R2PI-uMS technique developed in this work is also expected to enhance scientific research in a number of diverse fields other than art conservation, ranging from organic surface analysis in the electronics industry, to analysis/testing in the modern paint industry, to the study of spatial distributions of metabolites in cells in botanical or biological studies. The graduate students that are involved in the project will have the unique opportunity of working in both academic and cultural heritage research environments, helping to foster the next generation of scientists engaged in cultural heritage science. In addition to training graduate students, the researchers will involve undergraduate and high school students in the framework of UCSB sponsored outreach programs to minority students and high schools and the Getty's Graduate Intern and Multicultural Undergraduate Internship programs. In an additional collaboration, students from Jackson State University, a historically black college, will also participate in the project. By involving such a diverse group of researchers, the PIs will work to increase participation of minority students in STEM fields.

在化学测量和成像计划中的化学和多学科活动办公室的支持下，De Vries教授及其小组之间的新合作项目与加州大学 - 圣塔芭芭拉分校（UCSB）（UCSB）与洛杉矶的Getty保护研究所（GCI）的研究人员在洛杉矶的研究人员之间将开发出一种新技术，可以开发出一种具有不可衡量的有机构造的新技术。新方法基于一种专业形式的激光质谱法，并结合了独特仪器中的显微镜。这种方法将具有所需的空间分辨率，以分离绘画中的微小安装样品的离散层中少量有机材料（称为横截面），并且灵敏度可提供分子在非常低浓度的材料的分子特定鉴定。在分子和微观结构水平上对艺术家材料的明确识别可以阐明历史地质或生物材料来源，制造过程和贸易路线。对艺术作品的理解还可以协助保护者和策展人制定保护和保存艺术作品所需的存储和展览协议，并协助艺术史学家对物体，艺术家以及创造其创造的历史和文化环境之间的关系进行调查。预计在这项工作中开发的R2PI-UMS技术还可以增强除艺术保护以外的许多不同领域的科学研究，从电子行业的有机表面分析到现代油漆行业的分析/测试，再到植物学或生物学研究中细胞中代谢物的空间分布的研究。参与该项目的研究生将有独特的机会在学术和文化遗产研究环境中工作，有助于培养从事文化遗产科学的下一代科学家。除了培训研究生外，研究人员还将让本科和高中学生参与UCSB赞助的向少数民族学生和高中以及盖蒂的研究生实习生和多元文化本科实习计划的范围。在额外的合作中，来自历史悠久的黑人学院杰克逊州立大学的学生也将参加该项目。 通过参与如此多样化的研究人员，PI将努力增加少数族裔学生在STEM领域的参与。