scholarly journals DNA–melamine hybrid molecules: from self-assembly to nanostructures

2015 ◽  
Vol 6 ◽  
pp. 1432-1438 ◽  
Author(s):  
Rina Kumari ◽  
Shib Shankar Banerjee ◽  
Anil K Bhowmick ◽  
Prolay Das
Keyword(s):  
Self Assembly ◽  
Coupling Reaction ◽  
Building Blocks ◽  
The Self ◽  
Organic Hybrid ◽  
Molecular Building Blocks ◽  
Cross Coupling Reaction ◽  
Linear Chains ◽  
Hybrid Molecules ◽  
Dna Strands

Single-stranded DNA–melamine hybrid molecular building blocks were synthesized using a phosphoramidation cross-coupling reaction with a zero linker approach. The self-assembly of the DNA–organic hybrid molecules was achieved by DNA hybridization. Following self-assembly, two distinct types of nanostructures in the form of linear chains and network arrays were observed. The morphology of the self-assembled nanostructures was found to depend on the number of DNA strands that were attached to a single melamine molecule.

scholarly journals Self assembled nanocages from DNA–protoporphyrin hybrid molecules

RSC Advances ◽  
2015 ◽  
Vol 5 (108) ◽  
pp. 89025-89029 ◽  
Author(s):  
Vandana Singh ◽  
Mohan Monisha ◽  
Roy Anindya ◽  
Prolay Das
Keyword(s):  
Functional Groups ◽  
Protoporphyrin Ix ◽  
Building Blocks ◽  
Carboxyl Groups ◽  
Dna Oligomers ◽  
Organic Hybrid ◽  
Molecular Building Blocks ◽  
Modified Dna ◽  
Hybrid Molecules ◽  
Self Assembled

DNA–organic hybrid molecular building blocks are generated by covalent conjugation of the carboxyl groups of protoporphyrin IX with the amine functional groups of modified DNA oligomers.

Case history of porphyrin J-aggregates: a personal point of view

2009 ◽  
Vol 13 (04n05) ◽  
pp. 461-470 ◽  
Author(s):  
Joaquim Crusats ◽  
Zoubir El-Hachemi ◽  
Carlos Escudero ◽  
Josep M. Ribó
Keyword(s):  
Supramolecular Chemistry ◽  
Self Assembly ◽  
Building Blocks ◽  
Point Of View ◽  
Water Soluble ◽  
The Self ◽  
Molecular Building Blocks ◽  
History Of ◽  
J Aggregates ◽  
The University

The formation and structure of the title aggregates are paradigms of the self-assembly of amphiphilic molecular building blocks in supramolecular chemistry. This review summarizes the research in the University of Barcelona on the homoassociation of the water soluble meso 4-sulfonatophenyl-and phenyl substituted porphyrins.

scholarly journals Hierarchical self-assembly of miktoarm star copolymers with pathway complexity

2021 ◽  
Author(s):  
Jie Xiao ◽  
Qun He ◽  
Minjun Yang ◽  
Haoquan Li ◽  
Xiandeng Qiu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Building Blocks ◽  
The Self ◽  
Molecular Building Blocks ◽  
Star Copolymers ◽  
Miktoarm Star

The self-assembly of amphiphilic miktoarm star copolymers shows hierarchical pathway complexity from molecular building blocks to miktoarm stars to micellar nano-objects to complex hierarchical assemblies.

scholarly journals The Self-Assembly and Design of Polyfunctional Nanosystems

2021 ◽  
Vol 22 (4) ◽  
pp. 2223
Author(s):  
Ruslan Kashapov ◽  
Lucia Zakharova
Keyword(s):  
Sustainable Development ◽  
Nanostructured Materials ◽  
Self Assembly ◽  
Building Blocks ◽  
The Self ◽  
Special Issue ◽  
Molecular Building Blocks ◽  
Wide Range ◽  
Scientific Papers ◽  
Current Task

The current task of the molecular sciences is to create unique nanostructured materials with a given structure and with specific physicochemical properties on the basis of the existing wide range of molecules of natural and synthetic origin. A promising and inexpensive way to obtain nanostructured materials is the spontaneous self-assembly of molecular building blocks during random collisions in real dispersive systems in solution and at interfaces. This editorial aims to summarize the major points from the 11 scientific papers that contributed to the special issue “The Self-Assembly and Design of Polyfunctional Nanosystems”, assessing the modern self-assembly potential and strategies for maintaining sustainable development of the nanoindustry.

scholarly journals Synthesis and Characterisation of Dimeric Bolaamphiphilic Dehydrodipeptides for Biomedical Applications

2020 ◽  
Vol 4 (1) ◽  
pp. 35
Author(s):  
Carolina Amorim ◽  
Peter J. Jervis ◽  
Juliana Andrade ◽  
Paula M. T. Ferreira ◽  
José A. Martins
Keyword(s):  
Self Assembly ◽  
Biomedical Applications ◽  
Functional Materials ◽  
Building Blocks ◽  
The Self ◽  
Molecular Building Blocks

The self-assembly of nanometric structures from molecular building blocks is an effectiveway to make new functional materials for biological and technological applications. [...]

Porous molecular networks formed by the self-assembly of positively-charged trigonal building blocks at the liquid/solid interfaces

2014 ◽  
Vol 50 (57) ◽  
pp. 7683-7685 ◽  
Author(s):  
Kazukuni Tahara ◽  
Maria L. Abraham ◽  
Kosuke Igawa ◽  
Keisuke Katayama ◽  
Iris M. Oppel ◽  
...  
Keyword(s):  
Self Assembly ◽  
Van Der Waals ◽  
Building Blocks ◽  
The Self ◽  
Van Der Waals Interaction ◽  
Molecular Networks ◽  
Alkyl Chains ◽  
Molecular Building Blocks ◽  
Positively Charged

Tris-(2-hydroxybenzylidene)triaminoguanidinium salts having six alkyl chains with proper spacing served as new molecular building blocks for the formation of porous honeycomb networks by van der Waals interaction between interdigitated alkyl chains at the liquid/graphite interfaces.

scholarly journals Bolaamphiphilic Bis-Dehydropeptide Hydrogels as Potential Drug Release Systems

2021 ◽  
Author(s):  
Carolina Amorim ◽  
Sergio R.S. Veloso ◽  
Elisabete M.S. Castanheira ◽  
Loic Hilliou ◽  
Renato B. Pereira ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Sustained Release ◽  
Self Assembly ◽  
Functional Materials ◽  
Building Blocks ◽  
The Self ◽  
Molecular Building Blocks ◽  
Hydrogel Network ◽  
Keratinocyte Cell ◽  
Drug Compound

<div>The self-assembly of nanometric structures from molecular building blocks is an effective</div><div>way to make new functional materials for biological and technological applications. In this work</div><div>four symmetrical bolaamphiphiles based on dehydrodipeptides</div><div>(phenylalanyldehydrophenylalanine and tyrosyldehydrophenylalanine) linked through phenyl</div><div>or naphthyl linkers (terephthalic acid and 2,6-naphthalenedicarboxylic acid) were prepared and</div><div>their self-assembly properties studied. The results showed that all compounds with the exception</div><div>of the bolaamphiphile of tyrosyldehydrophenylalanine and 2,6-naphthalene dicarboxylic acid</div><div>gave self-standing hydrogels with critical gelation concentrations of 0.3 and 0.4 wt% using a pH</div><div>trigger. The self-assembly of these hydrogelators was investigated using STEM microscopy,</div><div>which revealed a network of entangled fibres. According to rheology the dehydrodipeptide</div><div>bolaamphiphile hydrogelators are viscoelastic materials with an elastic modulus G’ that falls in</div><div>the range of native tissue (0.37 kPa brain – 4.5 kPa cartilage). In viability and proliferation studies,</div><div>it was found that these compounds were non-toxic towards the human keratinocyte cell line,</div><div>HaCaT. In sustained release assays, we studied the effects of the charge present on the model</div><div>drug compound on the rate of cargo release from the hydrogel networks. Methylene blue (MB),</div><div>methyl orange (MO) and ciprofloxacin were chosen as cationic, anionic and overall neutral cargo,</div><div>respectively. These studies have shown that the hydrogels provide a sustained release of methyl</div><div>orange and ciprofloxacin, while the methylene blue is retained by the hydrogel network.</div>

scholarly journals Bolaamphiphilic Bis-Dehydropeptide Hydrogels as Potential Drug Release Systems

2021 ◽  
Author(s):  
Carolina Amorim ◽  
Sergio R.S. Veloso ◽  
Elisabete M.S. Castanheira ◽  
Loic Hilliou ◽  
Renato B. Pereira ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Sustained Release ◽  
Self Assembly ◽  
Functional Materials ◽  
Building Blocks ◽  
The Self ◽  
Molecular Building Blocks ◽  
Hydrogel Network ◽  
Keratinocyte Cell ◽  
Drug Compound

<div>The self-assembly of nanometric structures from molecular building blocks is an effective</div><div>way to make new functional materials for biological and technological applications. In this work</div><div>four symmetrical bolaamphiphiles based on dehydrodipeptides</div><div>(phenylalanyldehydrophenylalanine and tyrosyldehydrophenylalanine) linked through phenyl</div><div>or naphthyl linkers (terephthalic acid and 2,6-naphthalenedicarboxylic acid) were prepared and</div><div>their self-assembly properties studied. The results showed that all compounds with the exception</div><div>of the bolaamphiphile of tyrosyldehydrophenylalanine and 2,6-naphthalene dicarboxylic acid</div><div>gave self-standing hydrogels with critical gelation concentrations of 0.3 and 0.4 wt% using a pH</div><div>trigger. The self-assembly of these hydrogelators was investigated using STEM microscopy,</div><div>which revealed a network of entangled fibres. According to rheology the dehydrodipeptide</div><div>bolaamphiphile hydrogelators are viscoelastic materials with an elastic modulus G’ that falls in</div><div>the range of native tissue (0.37 kPa brain – 4.5 kPa cartilage). In viability and proliferation studies,</div><div>it was found that these compounds were non-toxic towards the human keratinocyte cell line,</div><div>HaCaT. In sustained release assays, we studied the effects of the charge present on the model</div><div>drug compound on the rate of cargo release from the hydrogel networks. Methylene blue (MB),</div><div>methyl orange (MO) and ciprofloxacin were chosen as cationic, anionic and overall neutral cargo,</div><div>respectively. These studies have shown that the hydrogels provide a sustained release of methyl</div><div>orange and ciprofloxacin, while the methylene blue is retained by the hydrogel network.</div>

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