Self-Assembled Catenanes, Knots, and Links and Synergistic Effects of Weak Interactions

2014 ◽  
pp. 332-343
Keyword(s):  
Weak Interactions ◽  
Synergistic Effects ◽  
Self Assembled ◽  
Knots And Links

Biotin-conjugated PEGylated porphyrin self-assembled nanoparticles co-targeting mitochondria and lysosomes for advanced chemo-photodynamic combination therapy

2019 ◽  
Vol 7 (1) ◽  
pp. 65-79 ◽  
Author(s):  
Baskaran Purushothaman ◽  
Jinhyeok Choi ◽  
Solji Park ◽  
Jeongmin Lee ◽  
Annie Agnes Suganya Samson ◽  
...  
Keyword(s):  
Combination Therapy ◽  
Synergistic Effects ◽  
Self Assembled

In this study, the chemo-drug doxorubicin (DOX) was successfully encapsulated in PEG–biotin conjugated porphyrin SANs (DOX@TPP–PEG–biotin) and had synergistic effects after PDT action.

Kinetic investigation of the dissociation of dinuclear hierarchically assembled titanium(iv) helicates

2019 ◽  
Vol 48 (28) ◽  
pp. 10574-10580
Author(s):  
David Van Craen ◽  
Marcel Schlottmann ◽  
Wolfgang Stahl ◽  
Christoph Räuber ◽  
Markus Albrecht
Keyword(s):  
Asymmetric Synthesis ◽  
Weak Interactions ◽  
Molecular Switches ◽  
Supramolecular System ◽  
Kinetic Investigation ◽  
Self Assembled

Hierarchically assembled helicates consisting of lithium-bridged triscatecholate titanium(iv) complexes represent a powerful self-assembled supramolecular system with applications as e.g. molecular balances for the evaluation of weak interactions, stereoselectivity switches in asymmetric synthesis or molecular switches.

Crystal structures of self-assembled nanotubes from flexible macrocycles by weak interactions

CrystEngComm ◽  
2010 ◽  
Vol 12 (11) ◽  
pp. 3676 ◽  
Author(s):  
Romen Carrillo ◽  
Matías López-Rodríguez ◽  
Víctor S. Martín ◽  
Tomás Martín
Keyword(s):  
Crystal Structures ◽  
Weak Interactions ◽  
Self Assembled

Synergistic and Additive Effects of Hydrostatic Pressure and Growth Factor Application on Engineered Articular Cartilage Constructs

2008 ◽  
Author(s):  
Benjamin D. Elder ◽  
Kyriacos A. Athanasiou
Keyword(s):  
Growth Factors ◽  
Articular Cartilage ◽  
Growth Factor ◽  
Hydrostatic Pressure ◽  
Synergistic Effects ◽  
Biochemical Properties ◽  
Combined Effects ◽  
Additive Effects ◽  
Self Assembled

It has previously been demonstrated that hydrostatic pressure (HP) enhances the biochemical properties of self-assembled articular cartilage constructs [1]. However, studies that systematically assess the effects of HP magnitude and frequency are lacking. Additionally, studies examining the combined effects of hydrostatic pressure and growth factors are limited. To this end, this study sought to test the hypotheses that static HP will have the greatest enhancement of construct biomechanical and biochemical properties, and that there will be additive or synergistic effects when combining growth factors and HP stimulation.

scholarly journals Nanoscale surface chemistry in self- and directed-assembly of organic molecules on solid surfaces and synthesis of nanostructured organic architectures

2008 ◽  
Vol 80 (1) ◽  
pp. 45-57 ◽  
Author(s):  
Feng Tao
Keyword(s):  
Organic Molecules ◽  
Weak Interactions ◽  
Noncovalent Interactions ◽  
Directed Assembly ◽  
Molecular Packing ◽  
Solid Surfaces ◽  
Self Assembled Monolayer ◽  
Chemical Binding ◽  
Self Assembled ◽  
Molecule Interactions

This article briefly reviews the interplay of weak noncovalent interactions involved in the formation of self-assembled monolayers of organic molecules and the strong chemical binding in directed-assembly of organic molecules on solid surfaces. For a self-assembled monolayer, each molecule involves at least three categories of weak interactions, including molecule-substrate interactions, molecule-molecule interactions in a lamella, and molecule-molecule interactions between two adjacent lamellae. Basically, molecule-substrate interactions play a major role in determining molecular configuration. Molecule-molecule interactions, particularly the interactions of molecular ending functional groups between two adjacent lamellae, such as hydrogen bonds, play a dominant role in determining the molecular packing pattern in a monolayer. These weak interactions may induce or influence molecular chirality. This understanding at the atomic scale allows us to design 2D nanostructured organic materials via precisely manipulating these weak noncovalent interactions. Compared to the self-assembled monolayer formed via weak noncovalent interactions, the structure of directed-assembled monolayer/multilayers formed through strong chemical bonds is significantly dependent on the geometric arrangement and reactivity of active sites on the solid surface. In contrast to the significant role of weak intermolecular interactions in determining molecular packing in a self-assembled monolayer, strong chemical binding between molecules and reactive sites of a substrate plays a major role in determining the molecular packing pattern in a directed-assembly monolayer. Controllable chemical attachment between organic functional groups and reactive sites of the solid surface is crucial for the formation of a highly oriented organic monolayer and the following multilayer.

Theranostic potential of biodegradable polymeric nanoparticles with paclitaxel and curcumin against breast carcinoma

2021 ◽  
Author(s):  
Kyu Ri Kim ◽  
Su Jung You ◽  
Hyun Joo Kim ◽  
Dae Hyeok Yang ◽  
Heung Jae Chun ◽  
...  
Keyword(s):  
Breast Carcinoma ◽  
Tumor Size ◽  
Polymeric Nanoparticles ◽  
Synergistic Effects ◽  
Hybrid Nanoparticles ◽  
Specific Targeting ◽  
Self Assembled ◽  
Targeting Ability

Self-assembled theranostic hybrid nanoparticles containing dual drugs showed a specific targeting ability for breast carcinoma, and significantly reduced the tumor size due to the synergistic effects of the dual drugs.

scholarly journals Hollow ZnO microspheres self-assembled from rod-like nanostructures: morphology-dependent linear and Kerr-type nonlinear optical properties

2021 ◽  
Author(s):  
Azadeh Haghighatzadeh ◽  
Babak Mazinani ◽  
Masood Ostad ◽  
Mohammadreza Shokouhimehr ◽  
Joydeep Dutta
Keyword(s):  
Nonlinear Optical ◽  
Near Infrared ◽  
Hydrothermal Reaction ◽  
Synergistic Effects ◽  
Zinc Acetate Dihydrate ◽  
Nonlinear Refraction ◽  
Treatment Temperature ◽  
Nonlinear Susceptibility ◽  
Excitation Wavelength ◽  
Self Assembled

AbstractHollow nanostructures have attracted attention because of their unique physiochemical properties and broad potential applications in electronics, optics and photonics. In this study, a facile hydrothermal approach was developed to fabricate hollow ZnO microspheres via self-assembled rod-like nanostructures. The morphology-controlled synthesis was conducted by altering hydrothermal treatment temperature (150, 200 and 250 °C) in solutions containing zinc acetate dihydrate precursor and glycerol as the stabilizing agent. The morphological observations indicated that hydrothermally grown ZnO architectures could be reasonably adjusted by modulating hydrothermal reaction temperature. Possible growth routes are proposed to elucidate the formation process of ZnO microspheres with the rod-like nanostructures. Morphology-dependent absorbance and emission along with red-shifts with improved crystalline qualities were observed with increasing hydrothermal growth temperature. Kerr-type nonlinear optical characteristics examined using single-beam Z-scan technique in the near infrared spectral range under nanosecond Nd-YVO4 laser pulses showed positive values of nonlinear refraction providing an evidence of self-focusing behaviors at the excitation wavelength of 1064 nm in all the samples studied. The highest Kerr-type nonlinear susceptibility was estimated to be 2.31 × 10–6 esu for hollow ZnO microspheres grown at 250 °C, suggesting synergistic effects of surface morphologies on optical nonlinearities.

Post-synthetic modifications of cadmium-based knots and links

2016 ◽  
Vol 52 (46) ◽  
pp. 7398-7401 ◽  
Author(s):  
Thirumurugan Prakasam ◽  
Rana A. Bilbeisi ◽  
Matteo Lusi ◽  
John-Carl Olsen ◽  
Carlos Platas-Iglesias ◽  
...  
Keyword(s):  
Postsynthetic Modification ◽  
Dynamic Library ◽  
Self Assembled ◽  
Knots And Links

Three topologically non-trivial cadmium(ii)-based complexes—Cd-[2]C, Cd-TK and CD-SL—were self-assembled in a dynamic library, individually isolated and fully characterized and subjected to postsynthetic modification including demetallation and transmetallation.

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