Vertical arrays of nanofluidic channels fabricated without nanolithography

作者: Roman Sordan , Alessio Miranda , Floriano Traversi , Davide Colombo , Daniel Chrastina

DOI: 10.1039/B819520J

关键词: BiomoleculeHeterojunctionConfocalMaterials scienceMicroscopeNanofluidicsNanolithographyEtching (microfabrication)NanotechnologyFluorescence

摘要: Vertical arrays of sealed nanofluidic channels, in which both cross-sectional dimensions are controllable down to 10 nm, were fabricated by selective side etching a SiGe heterostructure comprised layers alternating Ge fractions. Capillary filling these nanochannel with fluorescent dye solutions was investigated using confocal microscope. The feasibility nanochannels for size-based separation biomolecules demonstrated imaging aggregates tagged amyloid-beta peptide. ability integrate large number shows promise high throughput applications involving lab-on-a-chip systems.

参考文章(26)
Michael Zwolak, Massimiliano Di Ventra, Colloquium: Physical approaches to DNA sequencing and detection Reviews of Modern Physics. ,vol. 80, pp. 141- 165 ,(2008) , 10.1103/REVMODPHYS.80.141
Jan C. T. Eijkel, Albert van den Berg, Nanofluidics: what is it and what can we expect from it? Microfluidics and Nanofluidics. ,vol. 1, pp. 249- 267 ,(2005) , 10.1007/S10404-004-0012-9
Jacques Blümmel, Nadine Perschmann, Daniel Aydin, Jovana Drinjakovic, Thomas Surrey, Monica Lopez-Garcia, Horst Kessler, Joachim P. Spatz, Protein repellent properties of covalently attached PEG coatings on nanostructured SiO2 based interfaces Biomaterials. ,vol. 28, pp. 4739- 4747 ,(2007) , 10.1016/J.BIOMATERIALS.2007.07.038
B. Rössner, D. Chrastina, G. Isella, H. von Känel, Scattering mechanisms in high-mobility strained Ge channels Applied Physics Letters. ,vol. 84, pp. 3058- 3060 ,(2004) , 10.1063/1.1707223
Darwin R. Reyes, Dimitri Iossifidis, Pierre-Alain Auroux, Andreas Manz, Micro Total Analysis Systems. 1. Introduction, Theory, and Technology Analytical Chemistry. ,vol. 74, pp. 2623- 2636 ,(2002) , 10.1021/AC0202435
Xiaogan Liang, Stephen Y. Chou, Nanogap detector inside nanofluidic channel for fast real-time label-free DNA analysis. Nano Letters. ,vol. 8, pp. 1472- 1476 ,(2008) , 10.1021/NL080473K
C. Rosenblad, H. von Känel, M. Kummer, A. Dommann, E. Müller, A plasma process for ultrafast deposition of SiGe graded buffer layers Applied Physics Letters. ,vol. 76, pp. 427- 429 ,(2000) , 10.1063/1.125776
Anpan Han, Giampietro Mondin, Nicole G. Hegelbach, Nicolaas F. de Rooij, Urs Staufer, Filling kinetics of liquids in nanochannels as narrow as 27 nm by capillary force Journal of Colloid and Interface Science. ,vol. 293, pp. 151- 157 ,(2006) , 10.1016/J.JCIS.2005.06.037
Zhanhui Wang, Min-Cheol Kim, Manuel Marquez, Todd Thorsen, High-density microfluidic arrays for cell cytotoxicity analysis Lab on a Chip. ,vol. 7, pp. 740- 745 ,(2007) , 10.1039/B618734J