Copy of Raman/LIBS

拉曼光谱已被证明是一种可行的非破坏性技术，用于分析生命的地质情景/基于极端微生物为其在恶劣环境中生存而产生的特征生物化学物质的检测特征。生物与环境之间的相互作用对生存和现存的证据至关重要，重要的是，通过明确识别地质记录中的生物和地质标志，可以推测已经灭绝的生命形式。欧空局最近宣布接受用于ExoMars计划的拉曼/LIBS组合仪器，这是在扩大拟议着陆器/月球车的生命探测仪器组合方面向前迈出的重要一步，现在有必要建造和评估一台原型微型仪器，用于在一系列陆地模拟情况下进行测试。在布拉德福德大学，豪厄尔·爱德华兹教授和他的团队多年来一直在研究火星模拟地点的极端微生物的拉曼光谱，并在识别在广泛实验条件下获得的生物分子特征方面积累了专业知识。该组织从一系列被认为是“火星类似物”的地球场景中收集了一些关键样本。这些研究通过在地质矿物基质存在的情况下识别生物分子拉曼光谱标记带，启动了参考光谱数据库的准备，以直接识别复杂系统中的灭绝和现存生物。布拉德福德集团被确定为由费尔南多·鲁尔教授(瓦拉迪德大学)领导的国际拉曼/LIBS仪器科学工作组的关键贡献者，并将领导拉曼/LIBS Biomarker计划。

Raman spectroscopy has been demonstrated to be a viable non-destructive technique for the analytical interrogation of geological scenarios for life / detection signatures based on the presence of characteristic biochemicals produced by extremophilic organisms for their survival in hostile environments. The interaction between organisms and their environment is critical to survival and evidence for extant, and importantly, extinct lifeforms may be surmised from unambiguous identification of biological and geological markers in the geological record. The recent announcement of the acceptance of a combined Raman/LIBS instrument for the ExoMars programme by ESA is a major step forward in the broadening of the life-detection instrumentation portfolio for the proposed lander/rover and it is necessary now to construct and evaluate a prototype miniaturised instrument for testing in a range of terrestrial Mars analogue situations. At the University of Bradford, Professor Howell Edwards and his group have been studying the Raman spectra of extremophiles from Mars analogue sites for many years and have built up expertise in the recognition of biomolecular signatures obtained under a wide range of experimental conditions. The group has instigated a collection of key samples from a diverse range of terrestrial scenarios considered to be 'Mars analogues'. These studies have initiated, through identification of biomolecular Raman spectral marker bands in the presence of geological mineral host matrices, the preparation of a database of reference spectra for direct recognition of extinct and extant organisms in complex systems. The Bradford Group is identified as a key contributor to the international Raman/LIBS instrument science working team led by Prof. Fernando Rull (University of Valladoid) and will be leading the Raman/LIBS Biomarker programme.