原子力顯微鏡於奈米科技及刑案現場之應用

AFM in Nanotechnology Applications of Technology and Crime Scene

詹承勳(Cheng-Hsan Chan) ； 徐健國(Jiann-Gwo Shyu) ； 彭元興(Yuan-Shing Perng) ； 陳用佛(Yung-Fou Chen)

《台灣法醫學誌》 7卷1期 (2015/06) Pp. 1-28

https://doi.org/10.6134/tjfm.2015.0701.01

摘要

奈米科技對現代科技發展已產生重大的影響，正如同DNA技術發展對於近50年生物科技的貢獻。許多奈米科技已經被廣泛應用於各種纖維（發熱衣、抗污衣）、化妝品（防曬乳、膠原蛋白）、書寫工具（長效墨水）以及各式高分子材料等。為了分析這些於刑案現場可見，但常規鑑識工具只能部分鑑定或無法鑑定的新式奈米物證，又或於傳統物證上難以取樣、僅能以破壞性方法分析的物證，本研究室採取非破壞性方法之原子力顯微鏡（AFM）為主軸進行前項所述樣品之研究。AFM運作原理為使用儀器上之奈米級微小探針測量與樣品間的原子作用力並進而推測探針與表面之距離並以電腦繪出樣品表面的結構圖形，而能使研究人員細探各種樣品奈米層級的表面形貌，並協助建立各式資料庫。分析樣品的奈米層級表面，可以讓我們更瞭解物證的全貌。目前國際上鑑識及相關學界AFM的研究方向主要朝文書鑑定、纖維與毛髮、血跡、潛伏指紋等方向邁進。AFM於各式證物的細部形貌與結構的分析具有相當大的潛力，未來可能成為微量物證鑑識工作的強力輔助工具，因此在先前進行了各式非常規潛力物證的建檔掃描後，更著重在於配合文書鑑定的紙張樣品分析以及墨水與微量物證於紙張樣品上之鑑定潛力研究，以期更貼近一般傳統鑑識實務分析，並協助解決目前鑑識工具或方法所無法分析之物件。

關鍵字

原子力顯微鏡 ； 奈米科技 ； 文書鑑定 ； 紙張樣品分析

並列摘要

Nanotechnology for the development of modern science and technology have a significant impact, just as DNA technology for the past 50 years, the contribution of biotechnology. Many nanotechnology has been widely used in a variety of fiber (fever clothes, stain clothes), cosmetics (sunscreen, collagen), writing instruments (long-lasting ink) as well as a variety of polymer materials. In order to analyze the crime scene in the visible, but only partially identified conventional forensic tools or can not identify the new nano material evidence, or difficult sampling on traditional evidence, only destructive to analyze physical evidence, this lab to AFM non-destructive method of research as the main front entry of the sample. AFM principle of operation of nanoscale atomic force measurement between the fine probe sample using the instrument of the distance between the probe and thus presumably with the surface of the structure drawn by computer graphics and the sample surface, And enables researchers to explore the surface morphology of various samples of finenanometer level, and to help establish a variety of repositories. Nano-level surface analysis of the sample, Allows us to better understand the evidence of the whole picture. Currently forensic and academic research related to AFM major international instruments towards identification, fiber and hair, blood and other direction. AFM has a considerable potential for analyzing the morphology and structure of all kinds of detailed evidence, the future could become a powerful tool to aid the work of forensic trace evidence, and therefore previously been Evidence of the potential for all kinds of unconventional filing scan, more emphasis is to identify instruments with paper and ink samples and trace evidence analysis for identification of potential research paper on the sample, the closer to the general practice of traditional forensic analysis, and assist in resolving the current forensic tools or methods can not analyze the object.

並列關鍵字

AFM ； Nanotechnology ； The Instrument Identification ； Paper Sample Analysis

參考文獻

Chen, JH,Lu, GH(2006).Controlled decoration of carbon nanotubes with nanoparticles.Nanotechnology.17,2891-4.

Ding, GQ,Shen, WZ,Zheng, MJ,Zhou, ZB(2006).Integration of single-crystalline nanocolumns into highly ordered nanopore arrays.Nanotechnology.17,2590-4.

Femoni, CM,Iapalucci, C,Kaswalder, F,Longoni, G,Zacchini, S(2006).The possible role of metal carbonyl clusters in nanoscience and nanotechnologies.Coord Chem Rev.250,1580-1604.

Nozaki, T,Okazaki, K(2006).Materials processing at atmospheric pressure: Nonequilibrium effects on nanotechnology and mega-industries.Pure and Applied Chemistry.78,1157-72.

Reis, CP,Neufeld, RJ,Vilela, S,Ribeiro, AJ,Veiga, F(2006).Review and current status of emulsion/dispersion technology using an internal gelation process for the design of alginate particles.J Microencapsul.23,245-57.