Nanolithography

Harriott, L. R.; Hull, R.

doi:10.1007/1-4020-7757-2_2

Cited by 3 publications

(2 citation statements)

References 38 publications

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“…The development of synthetic strategies and analytical tools for controlling structures on the 1−100 nm length scale is fundamental to nanoscience. For planar surfaces, photo- and e-beam lithographic methods are now well established, − and a variety of microscopy techniques (e.g., AFM, STM) are readily available to evaluate new structures on the 10 nm length scale. Indeed, the positive feedback loop between the development of lithographic and microscopy techniques has been a major driver for the broader nanoscience field.…”

Section: Introductionmentioning

confidence: 99%

Patterning High Surface Area Silica with Lysozyme: Adsorption Kinetics, Fluorescence Quenching, and Protein Readsorption Studies To Evaluate the Templated Surface

et al. 2009

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A method was developed for using an inexpensive and widely available protein, hen egg white lysozyme, as a patterning agent for commercial high surface area silicas. The basic patterning methodology involved spontaneous adsorption of the protein from aqueous solution, alkylation of the uncovered surface with an alkylsiloxane, and protein desorption in a slightly alkaline solution of morpholine. Adsorption kinetic studies using Bradford assays assisted in determining protein deposition conditions. These studies were generally consistent with results on more planar silica surfaces and indicated that the protein quickly and strongly adsorbs along its long axis at low surface coverages. A modified fluorescence resonance energy transfer (FRET) technique was developed and employed to evaluate protein spacing. This technique showed that the proteins are well dispersed at low coverages. Readsorption experiments show that the templated regions are robust, retaining the size and shape of the original protein templates.

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Section: Introductionmentioning

confidence: 99%

Patterning High Surface Area Silica with Lysozyme: Adsorption Kinetics, Fluorescence Quenching, and Protein Readsorption Studies To Evaluate the Templated Surface

et al. 2009

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“…The large variety of chemical functionalities that can be incorporated using each of these techniques, and the ease with which nanografting can produce features with different shapes, should enable the technique to produce films with a variety of different structures. As with other serial nanolithography approaches, such as electronbeam lithography and scanning tunneling lithography [23], the main drawback of the technique is the time required to draw the patterns on the surface. However, the development of cantilever array techniques will greatly enhance the speed of AFM lithography.…”

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confidence: 99%

Nanoscale patterning of ionic self-assembled multilayers

Tulpar¹,

Wang²,

Jang³

et al. 2009

Nanotechnology

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Films that are nanostructured in all three dimensions can be fabricated by the templated growth of ionic self-assembled multilayers (ISAMs) on solids that have been patterned by nanografting. Nanografting was used to controllably pattern -COOH surface groups on a background of -OH groups. Atomic force microscopy (AFM) confirms that ISAM bilayers grow selectively on the -COOH groups and not on the surrounding -OH groups. The patterned area clearly shows an increase in height with an increase in the number of bilayers. As compared with other methods of nanofabrication, nanografting with ISAM deposition provides fast and precise control over the size of the pattern region, which remains stable even after repeated washing. This combination allows the fabricated template to be altered in situ without the need of any kind of mask, expensive probe, or post-lithography processing/cleaning methods. We have demonstrated line widths of 75 nm. Ultimately the line width is limited by the width of the AFM tip that causes desorption of the thiol, which is typically about 25 nm. Smaller line widths should be possible with the use of sharper AFM tips.

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Fundamentals on Bionanotechnologies

Dragoman

2012

Bionanoelectronics

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Nanolithography

Cited by 3 publications

References 38 publications

Patterning High Surface Area Silica with Lysozyme: Adsorption Kinetics, Fluorescence Quenching, and Protein Readsorption Studies To Evaluate the Templated Surface

Patterning High Surface Area Silica with Lysozyme: Adsorption Kinetics, Fluorescence Quenching, and Protein Readsorption Studies To Evaluate the Templated Surface

Nanoscale patterning of ionic self-assembled multilayers

Fundamentals on Bionanotechnologies

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