scholarly journals Green nanotechnology from tea: phytochemicals in tea as building blocks for production of biocompatible gold nanoparticles

2009 ◽  
Vol 19 (19) ◽  
pp. 2912 ◽  
Author(s):  
Satish K. Nune ◽  
Nripen Chanda ◽  
Ravi Shukla ◽  
Kavita Katti ◽  
Rajesh R. Kulkarni ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Building Blocks ◽  
Green Nanotechnology

scholarly journals Hemoglobin-driven iron-directed assembly of gold nanoparticles

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 ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Directed Assembly ◽  
Building Blocks ◽  
Form Complex

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.

Surface Plasmon Coupling in Dimers of Gold Nanoparticles: Experiment and Theory for Ideal (Spherical) and Nonideal (Faceted) Building Blocks

ACS Photonics ◽  
2019 ◽  
Vol 6 (3) ◽  
pp. 642-648 ◽  
Author(s):  
Jun Hee Yoon ◽  
Florian Selbach ◽  
Ludmilla Schumacher ◽  
Jesil Jose ◽  
Sebastian Schlücker
Keyword(s):  
Gold Nanoparticles ◽  
Surface Plasmon ◽  
Building Blocks ◽  
Plasmon Coupling ◽  
Surface Plasmon Coupling

scholarly journals Multivalent Lactose–Ferrocene Conjugates Based on Poly (Amido Amine) Dendrimers and Gold Nanoparticles as Electrochemical Probes for Sensing Galectin-3

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 203 ◽  
Author(s):  
Manuel C. Martos-Maldonado ◽  
Indalecio Quesada-Soriano ◽  
Luis García-Fuentes ◽  
Antonio Vargas-Berenguel
Keyword(s):  
Gold Nanoparticles ◽  
Surface Modification ◽  
Cardiac Remodeling ◽  
Building Blocks ◽  
Differential Pulse ◽  
Pamam Dendrimers ◽  
Titration Calorimetry ◽  
Vis Spectroscopy ◽  
Galectin 3 ◽  
Pulse Voltammetry

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.

scholarly journals DNA-mediated engineering of multicomponent enzyme crystals

2015 ◽  
Vol 112 (15) ◽  
pp. 4564-4569 ◽  
Author(s):  
Jeffrey D. Brodin ◽  
Evelyn Auyeung ◽  
Chad A. Mirkin
Keyword(s):  
Gold Nanoparticles ◽  
Protein Interactions ◽  
Building Blocks ◽  
Inorganic Nanoparticles ◽  
Protein Protein Interactions ◽  
Dna Interactions ◽  
Interparticle Interactions ◽  
Crystalline Materials ◽  
Catalytically Active ◽  
Surface Chemistries

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.

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 ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Building Blocks ◽  
Surface Polymerization ◽  
Novel Materials

Biodegradable nano-architectures containing gold nanoparticles arrays

MRS Advances ◽  
2016 ◽  
Vol 1 (30) ◽  
pp. 2173-2179
Author(s):  
Domenico Cassano ◽  
Diego Rota Martir ◽  
Giovanni Signore ◽  
Cinzia Avigo ◽  
Luca Menichetti ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Metal Nanoparticles ◽  
Building Blocks ◽  
Silica Shell ◽  
Clinical Translation ◽  
Nanoparticle Assembly ◽  
Gold Nanospheres ◽  
Medical Diagnoses ◽  
Polymer Nanoparticle ◽  
Commercial Polymers

ABSTRACTOne of the major concerns regarding the clinical translation of metal nanoparticles is related to the question of their persistence in organisms that can increase the likelihood of toxicity and the interaction/interference with common medical diagnoses.In order to overcome these issues we have recently introduced a versatile 90 nm nano-architecture composed by: i) arrays of 3 nm gold nanoparticles, ii) functionalizable commercial polymers surrounding the gold nanoparticles, and iii) biodegradable and derivatizable silica shell embedding the polymer-nanoparticle assembly. These robust nanocapsules maintain the intriguing features of gold nanospheres but are biodegraded in physiological media to their potentially renal clearable building blocks.

Mangiferin functionalized radioactive gold nanoparticles (MGF-198AuNPs) in prostate tumor therapy: green nanotechnology for production, in vivo tumor retention and evaluation of therapeutic efficacy

2017 ◽  
Vol 46 (42) ◽  
pp. 14561-14571 ◽  
Author(s):  
A. Y. Al-Yasiri ◽  
M. Khoobchandani ◽  
C. S. Cutler ◽  
L. Watkinson ◽  
T. Carmack ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Therapeutic Efficacy ◽  
Tumor Therapy ◽  
Prostate Tumor ◽  
Green Nanotechnology ◽  
Radioactive Gold Nanoparticles ◽  
Tumor Retention

We report here production of MGF-198AuNPs and its application for prostate tumor therapy.

scholarly journals Green Nanotechnology from Cumin Phytochemicals: Generation of Biocompatible Gold Nanoparticles

2009 ◽  
Vol 1 (1) ◽  
pp. 39-52 ◽  
Author(s):  
Kavita Katti ◽  
Nripen Chanda ◽  
Ravi Shukla ◽  
Ajit Zambre ◽  
Thilakavathi Suibramanian ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Green Nanotechnology
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