Chemical Modification of Analytes to Enhance Biochemical & Environmental Analysis

对分析物进行化学修饰以增强生化性能

• 批准号: RGPIN-2018-06616
• 负责人: Manthorpe, Jeffrey
• 金额: $ 1.75万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=679584
• 关键词: Chemical; Modification; Analytes; Enhance; Biochemical

For millennia humans have sought tools to fight infections and disease. The mid- to late 20th century saw the arrival of broad-spectrum antibiotics, cancer chemotherapy, antiviral drugs, cardiac medicines, and more thanks to the development of modern chemical and biochemical techniques and analytical instruments. Our understanding of our environment and pollution has undergone a similar revolution. ******The development of the next generation transformative medicines is now hampered by a shortage of understanding of the relevant biochemistry, rather than an inability to make molecules that treat the illness or disease. Thanks to its sensitivity and diversity of molecular information it provides, mass spectrometry is now the preeminent tool for molecular analysis in chemistry, biochemistry, and environmental analysis. Despite the exquisite nature of mass spectrometry, it is currently unable to address certain challenges and this application seeks to remedy this situation.******In order to be observed by mass spectrometry, molecules must have one or more charges (+ or ). Unfortunately, some molecules will generate or host a charge much more easily than others. This means that two different molecules may be present in equal amounts but they will not produce equal signal strength in the mass spectrometry data. In turn, this makes it very difficult to accurately determine how much of a given molecule is present in a solution, especially if the solution is a mixture of many things, like a blood, tissue, or environmental sample. This is a critical issue in mass spectrometry because the fluctuation of the levels/concentrations of certain molecules are exactly the information required to better understand how diseases and illnesses work at a molecular level, as well as determine the concentration of different “compounds of concern” in the environment. This application seeks to address this by developing methods for the installation of fixed (i.e. non-moveable), permanent charges into organic/biological molecules. This highly original and innovative fundamental science research program, which stems from TrEnDi (Trimethylation Enhancement with Diazomethane, a technique developed by the applicant and a collaborator), is likely to lead to groundbreaking advances in our understanding of biochemistry and the environment. This will address Canada's socio-economic needs through applications in medicine, toxicology, forensics, polymers, food science and food safety, and environmental analysis of pollutants.

几千年来，人类一直在寻找抗击感染和疾病的工具。20世纪中后期，由于现代化学和生化技术和分析仪器的发展，广谱抗生素、癌症化疗、抗病毒药物、心脏药物以及更多药物的出现。我们对环境和污染的理解也经历了类似的革命。*下一代变革性药物的开发现在受到对相关生物化学缺乏了解的阻碍，而不是因为无法制造治疗疾病或疾病的分子。由于其提供的分子信息的敏感性和多样性，质谱仪现在是化学、生物化学和环境分析中分子分析的卓越工具。尽管质谱学具有微妙的性质，但它目前还不能解决某些挑战，这一应用程序试图补救这种情况。*为了被质谱学观察，分子必须具有一个或多个电荷(+或)。不幸的是，某些分子会比其他分子更容易产生或承载电荷。这意味着两个不同的分子可能以相等的数量存在，但它们在质谱学数据中不会产生相同的信号强度。反过来，这使得很难准确确定给定分子在溶液中的含量，特别是当溶液是多种物质的混合物时，如血液、组织或环境样本。这是质谱学中的一个关键问题，因为某些分子水平/浓度的波动正是更好地了解疾病在分子水平上的作用以及确定环境中不同“令人关注的化合物”浓度所需的信息。本申请寻求通过开发将固定的(即不可移动的)永久电荷安装到有机/生物分子中的方法来解决这一问题。这一极具原创性和创新性的基础科学研究计划源于Trendi(重氮甲烷三甲基化增强技术，由申请者和合作者开发)，可能会导致我们对生物化学和环境的理解取得突破性进展。这将通过在医学、毒理学、法医学、聚合物、食品科学和食品安全以及污染物的环境分析方面的应用来满足加拿大的社会经济需求。