scholarly journals Self-assembly of [Au(CN)2]− Complexes with Tomato (Solanum lycopersicum) Steroidal Alkaloid Glycosides to Form Sheet or Tubular Structures

2018 ◽  
Vol 47 (8) ◽  
pp. 1010-1013 ◽  
Author(s):  
Souta Toohara ◽  
Yasuaki Tanaka ◽  
Shinichi Sakurai ◽  
Tsuyoshi Ikeda ◽  
Kazuo Tanaka ◽  
...  
Keyword(s):  
Solanum Lycopersicum ◽  
Self Assembly ◽  
Tubular Structures ◽  
Steroidal Alkaloid

MOLECULE-UP FABRICATION AND MANIPULATION OF LIPID NANOTUBES

2002 ◽  
Vol 01 (05n06) ◽  
pp. 465-469 ◽  
Author(s):  
TOSHIMI SHIMIZU ◽  
GEORGE JOHN ◽  
AKIHIRO FUKAGAWA ◽  
KOHZO ITO ◽  
HIROSHI FRUSAWA
Keyword(s):  
Optical Tweezers ◽  
Self Assembly ◽  
Flexural Rigidity ◽  
Combinatorial Approach ◽  
Tubular Structures ◽  
Self Assembling ◽  
Degree Of Unsaturation ◽  
Hydrophobic Chain ◽  
Rational Control ◽  
Lipid Nanotube

Self-assembling behavior of both a cardanol-appended glycolipid mixture and the fractionated four components has been examined in aqueous solutions. The cardanyl glucoside mixture differing in the degree of unsaturation in the hydrophobic chain was found to self-assemble in water to form open-ended nanotube structures with 10–15 nm inner diameters. The pure saturated homologue produced twisted helical ribbons through self-assembly, whereas the monoene derivative gave tubular structures. The rational control of helical and tubular morphologies has been achieved by a combinatorial approach through the binary self-assembly of the saturated and monoene derivatives. The flexural rigidity of a single lipid nanotube was first evaluated using optical tweezers manipulation and then compared with that of natural microtubules.

scholarly journals Light-directed trapping of metastable intermediates in a self-assembly process

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Joonsik Seo ◽  
Joonyoung F. Joung ◽  
Sungnam Park ◽  
Young Ji Son ◽  
Jaegeun Noh ◽  
...  
Keyword(s):  
Self Assembly ◽  
Alkyl Chain ◽  
Perylene Diimide ◽  
Chemical Compositions ◽  
Assembly Process ◽  
Supramolecular Framework ◽  
Tubular Structures ◽  
Significant Information ◽  
Self Assembling ◽  
General Method

AbstractSelf-assembly is a dynamic process that often takes place through a stepwise pathway involving formation of kinetically favored metastable intermediates prior to generation of a thermodynamically preferred supramolecular framework. Although trapping intermediates in these pathways can provide significant information about both their nature and the overall self-assembly process, it is a challenging venture without altering temperature, concentrations, chemical compositions and morphologies. Herein, we report a highly efficient and potentially general method for “trapping” metastable intermediates in self-assembly processes that is based on a photopolymerization strategy. By employing a chiral perylene-diimide possessing a diacetylene containing an alkyl chain, we demonstrated that the metastable intermediates, including nanoribbons, nanocoils and nanohelices, can be effectively trapped by using UV promoted polymerization before they form thermodynamic tubular structures. The strategy developed in this study should be applicable to naturally and synthetically abundant alkyl chain containing self-assembling systems.

Halogen bonding drives the self-assembly of piperazine cyclophanes into tubular structures

2009 ◽  
pp. 2160 ◽  
Author(s):  
Kari Raatikainen ◽  
Juhani Huuskonen ◽  
Manu Lahtinen ◽  
Pierangelo Metrangolo ◽  
Kari Rissanen
Keyword(s):  
Self Assembly ◽  
Halogen Bonding ◽  
The Self ◽  
Tubular Structures

scholarly journals Self-assembly of multi-stranded RNA motifs into lattices and tubular structures

2017 ◽  
Vol 45 (9) ◽  
pp. 5628-5628 ◽  
Author(s):  
Jaimie Marie Stewart ◽  
Hari K.K. Subramanian ◽  
Elisa Franco
Keyword(s):  
Self Assembly ◽  
Tubular Structures ◽  
Rna Motifs

scholarly journals Orthogonal regulation of DNA nanostructure self-assembly and disassembly using antibodies

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Simona Ranallo ◽  
Daniela Sorrentino ◽  
Francesco Ricci
Keyword(s):  
Self Assembly ◽  
Functional Unit ◽  
Tubular Structures ◽  
Igg Antibodies ◽  
Specific Antibodies ◽  
Dna Nanostructure ◽  
Control Assembly ◽  
Recognition Elements ◽  
Specific Igg ◽  
Specific Igg Antibodies

AbstractHere we report a rational strategy to orthogonally control assembly and disassembly of DNA-based nanostructures using specific IgG antibodies as molecular inputs. We first demonstrate that the binding of a specific antibody to a pair of antigen-conjugated split DNA input-strands induces their co-localization and reconstitution into a functional unit that is able to initiate a toehold strand displacement reaction. The effect is rapid and specific and can be extended to different antibodies with the expedient of changing the recognition elements attached to the two split DNA input-strands. Such an antibody-regulated DNA-based circuit has then been employed to control the assembly and disassembly of DNA tubular structures using specific antibodies as inputs. For example, we demonstrate that we can induce self-assembly and disassembly of two distinct DNA tubular structures by using DNA circuits controlled by two different IgG antibodies (anti-Dig and anti-DNP antibodies) in the same solution in an orthogonal way.

scholarly journals Self-assembly of a cholesteryl-modified nucleoside into tubular structures from giant unilamellar vesicles

RSC Advances ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 4502-4510 ◽  
Author(s):  
Luisa Losensky ◽  
Salvatore Chiantia ◽  
Gudrun Holland ◽  
Michael Laue ◽  
Anca Petran ◽  
...  
Keyword(s):  
Self Assembly ◽  
Room Temperature ◽  
Tubular Structures ◽  
Giant Unilamellar Vesicles ◽  
Unilamellar Vesicles ◽  
Modified Nucleoside ◽  
Hollow Needle

Phosphatidylcholine-assisted self-assembly of cholesterylaminouridine into hollow needle-like structures was observed at room temperature.

Integration of poly(3-hexylthiophene) conductive stripe patterns with 3D tubular structures for tissue engineering applications

RSC Advances ◽  
2016 ◽  
Vol 6 (76) ◽  
pp. 72519-72524 ◽  
Author(s):  
Yingjuan Sun ◽  
Hongyan Li ◽  
Yuan Lin ◽  
Li Niu ◽  
Qian Wang
Keyword(s):  
Tissue Engineering ◽  
Self Assembly ◽  
Large Scale ◽  
Cell Alignment ◽  
Tubular Structures ◽  
Engineering Applications ◽  
Cellular Behaviors ◽  
Self Assembled ◽  
Electric Signals

P3HT was self-assembled into large-scale conductive stripe patterns based on confined evaporative self-assembly. These conductive stripe patterns could induce cell alignment and provide spatial electric signals to modulate cellular behaviors.

scholarly journals Self-Assembly of [3]Catenane and [4]Catenane Based on Neutral Organometallic Scaffolds

2021 ◽  
Vol 9 ◽  
Author(s):  
Gui-Yuan Wu ◽  
Hong-Juan Zhu ◽  
Fang-Fang Pan ◽  
Xiao-Wei Sheng ◽  
Ming-Rui Zhang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Theoretical Calculations ◽  
Tubular Structures ◽  
Interlocked Molecules ◽  
Ionization Time ◽  
X Ray ◽  
Flight Mass Spectrometry ◽  
Oxygen Coordination ◽  
Organometallic Scaffolds ◽  
Tof Ms

Transition metal-mediated templating and self-assembly have shown great potential to construct mechanically interlocked molecules. Herein, we describe the formation of the bimetallic [3]catenane and [4]catenane based on neutral organometallic scaffolds via the orthogonality of platinum-to-oxygen coordination-driven self-assembly and copper(I) template–directed strategy of a [2]pseudorotaxane. The structures of these bimetallic [3]catenane and [4]catenane were characterized by multinuclear NMR {1H and 31P} spectroscopy, electrospray ionization time-of-flight mass spectrometry (ESI-TOF-MS), and PM6 semiempirical molecular orbital theoretical calculations. In addition, single-crystal X-ray analyses of the [3]catenane revealed two asymmetric [2]pseudorotaxane units inside the metallacycle. It was discovered that tubular structures were formed through the stacking of individual [3]catenane molecules driven by the strong π–π interactions.

scholarly journals Reconstruction of Vascular and Urologic Tubular Grafts by Tissue Engineering

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 513
Author(s):  
Christophe Caneparo ◽  
Stéphane Chabaud ◽  
Stéphane Bolduc
Keyword(s):  
Tissue Engineering ◽  
Health Status ◽  
20Th Century ◽  
Self Assembly ◽  
New Technology ◽  
Tubular Structures ◽  
Immune Rejection ◽  
Late 20Th Century ◽  
Initial Biopsy

Tissue engineering is one of the most promising scientific breakthroughs of the late 20th century. Its objective is to produce in vitro tissues or organs to repair and replace damaged ones using various techniques, biomaterials, and cells. Tissue engineering emerged to substitute the use of native autologous tissues, whose quantities are sometimes insufficient to correct the most severe pathologies. Indeed, the patient’s health status, regulations, or fibrotic scars at the site of the initial biopsy limit their availability, especially to treat recurrence. This new technology relies on the use of biomaterials to create scaffolds on which the patient’s cells can be seeded. This review focuses on the reconstruction, by tissue engineering, of two types of tissue with tubular structures: vascular and urological grafts. The emphasis is on self-assembly methods which allow the production of tissue/organ substitute without the use of exogenous material, with the patient’s cells producing their own scaffold. These continuously improved techniques, which allow rapid graft integration without immune rejection in the treatment of severely burned patients, give hope that similar results will be observed in the vascular and urological fields.

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