The assemble, grow and lift-off (AGLO) strategy to construct complex gold nanostructures with pre-designed morphologies

Xin Luo; Christophe Lachance-Brais; Amy Bantle; Hanadi F. Sleiman

doi:10.1039/d0sc00553c

The assemble, grow and lift-off (AGLO) strategy to construct complex gold nanostructures with pre-designed morphologies

Chemical Science ◽

10.1039/d0sc00553c ◽

2020 ◽

Vol 11 (19) ◽

pp. 4911-4921 ◽

Cited By ~ 3

Author(s):

Xin Luo ◽

Christophe Lachance-Brais ◽

Amy Bantle ◽

Hanadi F. Sleiman

Keyword(s):

Dna Origami ◽

Gold Nanostructures ◽

Lift Off

The AGLO strategy generates complex gold nanostructures with user-designed morphologies in solution, using only a simple 2D DNA origami sheet as a versatile transient template. The products are robust and stable as standalone gold nanostructures.

Download Full-text

DNA-Based Self-Assembly of Gold Nanostructures

Journal of Biomedical and Allied Research ◽

10.37191/mapsci-2582-4937-2(1)-014 ◽

2020 ◽

Author(s):

Song J

Keyword(s):

Gold Nanoparticles ◽

Chemical Stability ◽

Self Assembly ◽

Three Dimensional ◽

Dna Nanotechnology ◽

Dna Origami ◽

Gold Nanostructures ◽

Two Dimensional ◽

Specific Targeting ◽

Targeting Ability

Plasmonic assemblies of gold nanoparticles (AuNPs) triggered by DNA exhibited excellent biocompatibility and specific-targeting ability. Moreover, the integration of AuNPs and DNA allows the DNA scaffolds exhibit greater chemical stability and optical plasmonic properties. In this mini review, we summarized the development of DNA nanotechnology, especially DNA framework and DNA origami that were employed to fabricate two-dimensional and three-dimensional (3D) Au nanoassembled nanostructures.

Download Full-text

DNA Origami as a Tool to Design Asymmetric Gold Nanostructures

Journal of Materials Science Research ◽

10.5539/jmsr.v7n1p1 ◽

2017 ◽

Vol 7 (1) ◽

pp. 1

Author(s):

George Amoako ◽

Zhou Ming ◽

Moses Jojo Eghan ◽

Samuel Sonko Sackey

Keyword(s):

Circular Dichroism ◽

Self Assembly ◽

Binding Sites ◽

Gel Electrophoresis ◽

Dna Origami ◽

Gold Nanostructures ◽

Bottom Up ◽

Sticky Ends ◽

Circular Dichroïsm

DNA origami technology provides a versatile approach for the chemical assembly of gold nanostructures. In this study the bottom-up approach of self-assembly using DNA in the origami process has been successfully applied to arrange five AuNPs asymmetrically. The DNA origami templates were modified to have binding sites that were extended with sticky ends to facilitate the attachment of the AuNPs. With the help of thiol chemistry, the AuNPs which were covered with DNA complementary to the sticky ends introduced on the DNA origami surfaces, we were able to attach the nanoparticles to the designed sites. It was realized that there were slight differences in the designed distances and the determined ones which were accounted for potentially by the deposition of the structures on the grids for imaging. The structures were characterized with gel electrophoresis and TEM. This asymmetric arrangement has the potential of exhibiting plasmonic behavior and circular dichroism when light is incident on the structure.

Download Full-text