9月7日-8日,環境分析分會以“Environment and Health 環境與健康”為主題,圍繞新污染物分析、暴露組學與暴露分析、微納尺度顆粒物及效應、環境健康研究中的新分析技術與裝置、AI和機器學習在環境分析中的應用等多個主題方向,展示了近年來廣大環境領域的專家學者在新原理、新材料、新方法和新儀器方面取得的突破。
環境分析分會現場
加拿大皇家科學院院士、加拿大阿爾伯塔大學(University of Alberta)杰出教授 樂曉春(X. Chris Le)
報告題目:CRISPR and amplification assays for nucleic acids in the environment
報告摘要:Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) and CRISPR-associated (Cas) protein systems are advancing genome editing, measurement sciences, and diagnostic technology. We describe here the development of integrated CRISPR-Cas and isothermal amplification techniques and their applications to biological and environmental analysis. Incorporating CRISPR-Cas systems with various nucleic acid amplification strategies enables the generation of amplified detection signals, improvements in analytical specificity and sensitivity, and development of point-of-care diagnostic assays.1,2 To enable highly sensitive and selective detection of nucleic acids, we integrated CRISPR with two isothermal amplification techniques: loop mediated amplification (LAMP) and recombinase polymerase amplification (RPA). To achieve on-site and point-of-care ability of the assays, we developed simultaneous viral inactivation and RNA preservation approaches compatible with the CRISPR-based techniques. We successfully applied these techniques and the polymerase chain reaction (PCR) assays to the determination of SARS-CoV-2 RNA in human nasal and throat swabs, gargle liquid, saliva, and wastewater/sewage.3-7 The CRISPR systems take advantage of various Cas proteins for their particular features, including RNA-guided endonuclease activity, sequence-specific recognition, and multiple turnover trans-cleavage activity of Cas12 and Cas13. The isothermal amplification and CRISPR technology can be adopted for the determination of other nucleic acid targets and for the analysis of other biological and environmental samples.
國家納米科學中心研究員 陳春英
報告題目:Exploring the Biological Behavior and Fate of Nanomedicines by
Advanced Light Source Analytical Techniques 利用先進光源分析技術研究納米藥物在體內的行為和命運
報告題目:Breath analysis by using secondary electrospray ionization high
resolution mass spectrometry: Applications and perspectives 二次電噴霧電離質譜在呼氣分析中的應用與展望(質譜分析)