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DNA as a Genetic Template

DNA as a Genetic Template

Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...

DNA Microarrays

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Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...

DNA as a Genetic Template

DNA as a Genetic Template

Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...

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Related Experiment Video

Updated: Jul 14, 2026

Nanomoulding of Functional Materials, a Versatile Complementary Pattern Replication Method to Nanoimprinting

Nanomoulding of Functional Materials, a Versatile Complementary Pattern Replication Method to Nanoimprinting

Published on: January 23, 2013

From macro- to nanoscopic templating with nanographenes.

Wojciech Pisula¹, Marcel Kastler, Daniel Wasserfallen

¹Max-Planck-Institut für Polymerforschung, 55128 Mainz, Germany.

Journal of the American Chemical Society

|November 9, 2006

Summary

Hexa-peri-hexabenzocoronene molecules self-organized into long, aligned columnar structures within macroscopic capillaries. Nanoporous templates further improved this supramolecular organization, enabling applications in nanorods and bundles.

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Area of Science:

Materials Science
Supramolecular Chemistry
Nanotechnology

Background:

Hexa-peri-hexabenzocoronenes (HPHs) are discotic liquid crystals known for self-assembly.
Controlling the self-organization of HPHs is crucial for advanced material applications.

Purpose of the Study:

To investigate the self-organization of a specific HPH derivative in nano- and macroscopic templates.
To explore the influence of template dimensionality on supramolecular organization.
To assess the potential for creating ordered nanostructures.

Main Methods:

Processing of a hexa-peri-hexabenzocoronene with branched alkyl chains in glass capillaries and nanoporous membranes.
Observation of self-organization via cooling from the isotropic phase.
Characterization of resulting supramolecular structures.

Main Results:

Extraordinary long-range alignment of columnar HPH structures along macroscopic capillary axes (several centimeters).
Negligible influence of capillary curvature on the directional self-assembly.
Improved supramolecular organization in nanoscopic pores, yielding bundles and single nanorods after template removal.

Conclusions:

Macroscopic and nanoscopic templating effectively directs HPH self-organization.
The intrinsic molecular self-assembly dominates over template curvature effects in macro-templates.
Template-assisted synthesis offers versatile routes to ordered nanostructures with potential applications.