Precisely Designed Gold Nanoparticles by Surface Polymerization - Artificial Molecules as Building Blocks for Novel Materials

2011 ◽  
Vol 21 (19) ◽  
pp. 3753-3759 ◽  
Author(s):  
Stefan Bokern ◽  
Katharina Gries ◽  
Hans-Helmut Görtz ◽  
Volker Warzelhan ◽  
Seema Agarwal ◽  
...  
RSC Advances ◽  
2018 ◽  
Vol 8 (28) ◽  
pp. 15675-15686 ◽  
Author(s):  
Jacquelyn G. Egan ◽  
Nicole Drossis ◽  
Iraklii I. Ebralidze ◽  
Holly M. Fruehwald ◽  
Nadia O. Laschuk ◽  
...  

The ability to form complex 3D architectures using nanoparticles as the building blocks and complex macromolecules that direct these assemblies remains a challenging objective for nanotechnology.


ACS Photonics ◽  
2019 ◽  
Vol 6 (3) ◽  
pp. 642-648 ◽  
Author(s):  
Jun Hee Yoon ◽  
Florian Selbach ◽  
Ludmilla Schumacher ◽  
Jesil Jose ◽  
Sebastian Schlücker

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 203 ◽  
Author(s):  
Manuel C. Martos-Maldonado ◽  
Indalecio Quesada-Soriano ◽  
Luis García-Fuentes ◽  
Antonio Vargas-Berenguel

Galectin-3 is considered a cancer biomarker and bioindicator of fibrosis and cardiac remodeling and, therefore, it is desirable to develop convenient methods for its detection. Herein, an approach based on the development of multivalent electrochemical probes with high galectin-3 sensing abilities is reported. The probes consist of multivalent presentations of lactose–ferrocene conjugates scaffolded on poly (amido amine) (PAMAM) dendrimers and gold nanoparticles. Such multivalent lactose–ferrocene conjugates are synthesized by coupling of azidomethyl ferrocene–lactose building blocks on alkyne-functionalized PAMAM, for the case of the glycodendrimers, and to disulfide-functionalized linkers that are then used for the surface modification of citrate-stabilized gold nanoparticles. The binding and sensing abilities toward galectin-3 of both ferrocene-containing lactose dendrimers and gold nanoparticles have been evaluated by means of isothermal titration calorimetry, UV–vis spectroscopy, and differential pulse voltammetry. The highest sensitivity by electrochemical methods to galectin-3 was shown by lactosylferrocenylated gold nanoparticles, which are able to detect the lectin in nanomolar concentrations.


2020 ◽  
Vol 26 (42) ◽  
Author(s):  
Melvin A. Timmerman ◽  
Rui Xia ◽  
Phu T. P. Le ◽  
Yang Wang ◽  
Johan E. Elshof

2015 ◽  
Vol 112 (15) ◽  
pp. 4564-4569 ◽  
Author(s):  
Jeffrey D. Brodin ◽  
Evelyn Auyeung ◽  
Chad A. Mirkin

The ability to predictably control the coassembly of multiple nanoscale building blocks, especially those with disparate chemical and physical properties such as biomolecules and inorganic nanoparticles, has far-reaching implications in catalysis, sensing, and photonics, but a generalizable strategy for engineering specific contacts between these particles is an outstanding challenge. This is especially true in the case of proteins, where the types of possible interparticle interactions are numerous, diverse, and complex. Herein, we explore the concept of trading protein–protein interactions for DNA–DNA interactions to direct the assembly of two nucleic-acid–functionalized proteins with distinct surface chemistries into six unique lattices composed of catalytically active proteins, or of a combination of proteins and DNA-modified gold nanoparticles. The programmable nature of DNA–DNA interactions used in this strategy allows us to control the lattice symmetries and unit cell constants, as well as the compositions and habit, of the resulting crystals. This study provides a potentially generalizable strategy for constructing a unique class of materials that take advantage of the diverse morphologies, surface chemistries, and functionalities of proteins for assembling functional crystalline materials.


RSC Advances ◽  
2021 ◽  
Vol 11 (62) ◽  
pp. 39188-39215
Author(s):  
Christofer Lendel ◽  
Niclas Solin

Protein nanofibrils produced from renewable resources provide opportunities to create novel materials for sustainable development.


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