Ligand-directed assembly engineering of trapezoidal {Ti5} building blocks stabilized by dimethylglyoxime

2019 ◽  
Vol 48 (27) ◽  
pp. 9916-9919 ◽  
Author(s):  
Qing-Rong Ding ◽  
Gui-Lan Xu ◽  
Lei Zhang ◽  
Jian Zhang
Keyword(s):  
Directed Assembly ◽  
Building Blocks ◽  
Molecular Assembly

A facile approach of ligand-directed assembly of trapezoidal {Ti5} building blocks was successfully established, which gave rise to interesting hybrid clusters including the first molecular assembly of porphyrin photosensitizer and titanium-oxo cluster.

DNA-based self-assembly of nanostructures

2017 ◽  
Author(s):  
Joshua D. Carter ◽  
Chenxiang Lin ◽  
Yan Liu ◽  
Hao Yan ◽  
Thomas H. LaBean
Keyword(s):  
Self Assembly ◽  
Materials Science ◽  
Directed Assembly ◽  
Building Blocks ◽  
Hierarchical Assembly ◽  
Synthetic Dna ◽  
Nanoscale Manufacturing ◽  
Covalently Linked ◽  
Design Construction ◽  
Proteins And Peptides

This article examines the DNA-based self-assembly of nanostructures. It first reviews the development of DNA self-assembly and DNA-directed assembly, focusing on the main strategies and building blocks available in the modern molecular construction toolbox, including the design, construction, and analysis of nanostructures composed entirely of synthetic DNA, as well as origami nanostructures formed from a mixture of synthetic and biological DNA. In particular, it considers the stepwise covalent synthesis of DNA nanomaterials, unmediated assembly of DNA nanomaterials, hierarchical assembly, nucleated assembly, and algorithmic assembly. It then discusses DNA-directed assembly of heteromaterials such as proteins and peptides, gold nanoparticles, and multicomponent nanostructures. It also describes the use of complementary DNA cohesion as 'smart glue' for bringing together covalently linked functional groups, biomolecules, and nanomaterials. Finally, it evaluates the potential future of DNA-based self-assembly for nanoscale manufacturing for applications in medicine, electronics, photonics, and materials science.

Directed Assembly of Periodic Materials from Protein and Oligonucleotide-Modified Nanoparticle Building Blocks

2001 ◽  
Vol 113 (15) ◽  
pp. 2993-2996 ◽  
Author(s):  
So-Jung Park ◽  
Anne A. Lazarides ◽  
Chad A. Mirkin ◽  
Robert L. Letsinger
Keyword(s):  
Directed Assembly ◽  
Building Blocks ◽  
Periodic Materials

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.

Molecular assembly at surfaces: progress and challenges

2017 ◽  
Vol 204 ◽  
pp. 9-33 ◽  
Author(s):  
R. Raval
Keyword(s):  
Building Blocks ◽  
Covalent Bonding ◽  
Molecular Assembly ◽  
Theoretical Modelling ◽  
Top Down ◽  
Molecular Systems ◽  
Natural Systems ◽  
Surfaces And Interfaces ◽  
Macromolecular Systems ◽  
Determine System

Molecules provide versatile building blocks, with a vast palette of functionalities and an ability to assemble via supramolecular and covalent bonding to generate remarkably diverse macromolecular systems. This is abundantly displayed by natural systems that have evolved on Earth, which exploit both supramolecular and covalent protocols to create the machinery of life. Importantly, these molecular assemblies deliver functions that are reproducible, adaptable, finessed and responsive. There is now a real need to translate complex molecular systems to surfaces and interfaces in order to engineer 21st century nanotechnology. ‘Top-down’ and ‘bottom-up’ approaches, and utilisation of supramolecular and covalent assembly, are currently being used to create a range of molecular architectures and functionalities at surfaces. In parallel, advanced tools developed for interrogating surfaces and interfaces have been deployed to capture the complexities of molecular behaviour at interfaces from the nanoscale to the macroscale, while advances in theoretical modelling are delivering insights into the balance of interactions that determine system behaviour. A few examples are provided here that outline molecular behaviour at surfaces, and the level of complexity that is inherent in such systems.

scholarly journals Towards computer-guided tuning of the crystal packing of porous organic cages

2014 ◽  
Vol 70 (a1) ◽  
pp. C667-C667
Author(s):  
Angeles Pulido ◽  
Ming Liu ◽  
Paul Reiss ◽  
Anna Slater ◽  
Sam Chong ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Crystal Engineering ◽  
Molecular Sieves ◽  
Structure Prediction ◽  
Crystal Packing ◽  
Aromatic Aldehydes ◽  
Lattice Energy ◽  
Building Blocks ◽  
Molecular Assembly ◽  
Computational Techniques

Among microporous materials, there has been an increasing recent interest in porous organic cage (POC) crystals, which can display permanent intrinsic (molecular) and extrinsic (crystal network) porosity. These materials can be used as molecular sieves for gas separation and potential applications as enzyme mimics have been suggested since they exhibit structural response toward guest molecules[1]. Small structural modifications of the initial building blocks of the porous organic molecules can lead to quite different molecular assembly[1]. Moreover, the crystal packing of POCs is based on weak molecular interactions and is less predictable that other porous materials such as MOFs or zeolites.[2] In this contribution, we show that computational techniques -molecular conformational searches and crystal structure prediction- can be successfully used to understand POC crystal packing preferences. Computational results will be presented for a series of closely related tetrahedral imine- and amine-linked porous molecules, formed by [4+6] condensation of aromatic aldehydes and cyclohexyl linked diamines. While the basic cage is known to have one strongly preferred crystal structure, the presence of small alkyl groups on the POC modifies its crystal packing preferences, leading to extensive polymorphism. Calculations were able to successfully identify these trends as well as to predict the structures obtained experimentally, demonstrating the potential for computational pre-screening in the design of POCs within targeted crystal structures. Moreover, the need of accurate molecular (ab initio calculations) and crystal (based on atom-atom potential lattice energy minimization) modelling for computer-guided crystal engineering will be discussed.

Template-Directed Assembly Using Nanoparticle Building Blocks:  A Nanotectonic Approach to Organized Materials

2001 ◽  
Vol 13 (10) ◽  
pp. 3218-3226 ◽  
Author(s):  
Sean A. Davis ◽  
Michael Breulmann ◽  
Katja H. Rhodes ◽  
Baojian Zhang ◽  
Stephen Mann
Keyword(s):  
Directed Assembly ◽  
Building Blocks

Controlled Loading of Building Blocks into Temporary Self-Assembled Scaffolds for Directed Assembly of Organic Nanostructures

Langmuir ◽  
2008 ◽  
Vol 24 (20) ◽  
pp. 11464-11473 ◽  
Author(s):  
L. Todd Banner ◽  
Delia C. Danila ◽  
Katie Sharpe ◽  
Melissa Durkin ◽  
Benjamin Clayton ◽  
...  
Keyword(s):  
Directed Assembly ◽  
Building Blocks ◽  
Organic Nanostructures ◽  
Self Assembled

scholarly journals The Polyvalent Gold Nanoparticle Conjugate—Materials Synthesis, Biodiagnostics, and Intracellular Gene Regulation

MRS Bulletin ◽  
2010 ◽  
Vol 35 (7) ◽  
pp. 532-539 ◽  
Author(s):  
Chad A. Mirkin
Keyword(s):  
A Priori ◽  
Three Dimensional ◽  
Directed Assembly ◽  
Building Blocks ◽  
Nanometer Scale ◽  
Materials Synthesis ◽  
Plasmon Resonances ◽  
Detection Capabilities ◽  
Extended Materials ◽  
Potential Use

AbstractAdvances in nanoscale directed assembly strategies have enabled researchers to analogize atomic assembly via chemical reactions and nanoparticle assembly, creating a new nanoscale “periodic table.” We are just beginning to realize the nanoparticle equivalents of molecules and extended materials and are currently developing the ground rules for creating programmable nanometer-scale coordination environments. The ability to create a diverse set of nanoscale architectures from one class of nanoparticle building blocks would allow for the synthesis of designer materials, wherein the physical properties of a material could be predicted and controlled a priori. Our group has taken the first steps toward this goal and developed a means of creating tailorable assembly environments using DNA-nanoparticle conjugates. These nanobioconjugates combine the discrete plasmon resonances of gold nanoparticles with the synthetically controllable and highly selective recognition properties of DNA. Herein, we elucidate the beneficial properties of these materials in diagnostic, therapeutic, and detection capabilities and project their potential use as nanoscale assembly agents to realize complex three-dimensional nanostructures.

Molecular assembly of 1,3,5-tris(cyanomethyl) and 1,4-bis(cyanomethyl)arenes with silver triflate

2006 ◽  
Vol 78 (4) ◽  
pp. 855-871 ◽  
Author(s):  
Kathleen V. Kilway ◽  
Shiping Deng ◽  
Sean Bowser ◽  
Joseph Mudd ◽  
Laronda Washington ◽  
...  
Keyword(s):  
Single Crystal ◽  
Layered Structure ◽  
Building Blocks ◽  
Molecular Assembly ◽  
Porous Channel ◽  
X Ray Diffraction ◽  
X Ray ◽  
Silver Triflate

Dicyano- and tricyano-substituted aromatic angular building blocks were systematically complexed with silver triflate, and their structures were determined by means of single-crystal X-ray diffraction. The molecular assembly of 1,3,5-tris(cyanomethyl)-2,4,6-triethylbenzene with silver triflate from benzene resulted in a layered structure with distorted square pyramidal silver sites. The structure resulting from the complexation of 1,3,5-tris(cyanomethyl)-2,4,6-trimethylbenzene with silver triflate is dependent on the solvent of crystallization. From benzene or toluene, reaction of 1,3,5-tris(cyanomethyl)-2,4,6-trimethylbenzene with silver triflate yielded a porous, channel-containing, solvated structure, but from acetone the resulting material was a network solid containing no solvent. Complexation of 1,4-bis(cyanomethyl)-2,3,5,6-tetraethylbenzene and 1,4-bis(cyanomethyl)-2,3,5,6-tetramethylbenzene with silver triflate resulted in network solids where the triflate anions were strongly coordinated to the silver.

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