Study on Structure of the New Polymer-Poly (Propylene-Co-γ-Butyrolactone Carbonate) with Molecular Model

2007 ◽  
Vol 353-358 ◽  
pp. 3076-3079
Author(s):  
Ling Bin Lu ◽  
Ke Long Huang ◽  
Feng Wen
Keyword(s):  
Phase Separation ◽  
Self Assembly ◽  
Molecular Model ◽  
The Self ◽  
Molecular Chain ◽  
Drug Molecule ◽  
Carboxylic Ester ◽  
Poly Propylene ◽  
The Relationship ◽  
Materials Studio

Based on COMPASS forcefield, the relationship between microstructure and macroscopic properties of poly (propylene-co-γ-butyrolactone carbonate) (PPCG) was firstly investigated with ‘Materials Studio’ simulation soft successfully. The results of simulation showed that the molecular chain of PPCG was flexible. Degradable carbonic and carboxylic ester groups were distributed outside the PPCG cell. Furthermore the structure of micro-phase separation was observed in PPCG cell. The structure of micro-phase separation of PPCG can be applied to the self-assembly of drug molecule.

scholarly journals Understanding the role of conjugation length on the self-assembly behaviour of oligophenyleneethynylenes

2021 ◽  
Author(s):  
Beatriz Matarranz ◽  
Goutam Ghosh ◽  
Ramesh Kandanelli ◽  
Angel Sampedro ◽  
Kalathil K. Kartha ◽  
...  
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Conjugation Length ◽  
The Relationship

We unravel the relationship between conjugation length and self-assembly behaviour of oligophenyleneethynylenes (OPEs).

scholarly journals Self-Assembly of Shape-Tunable Oblate Colloidal Particles into Orientationally Ordered Crystals, Glassy Crystals and Plastic Crystals

Soft Matter ◽  
2021 ◽  
Author(s):  
Jiawei Lu ◽  
Xiangyu Bu ◽  
Xinghua Zhang ◽  
Bing Liu
Keyword(s):  
Crystal Structures ◽  
Self Assembly ◽  
Colloidal Particles ◽  
Building Blocks ◽  
Fundamental Question ◽  
The Self ◽  
Plastic Crystals ◽  
Self Assembled ◽  
Glassy Crystals ◽  
The Relationship

The shapes of colloidal particles are crucial to the self-assembled superstructures. Understanding the relationship between the shapes of building blocks and the resulting crystal structures is an important fundamental question....

scholarly journals Molecular Model for the Self-Assembly of the Cyclic Lipodepsipeptide Pseudodesmin A

2019 ◽  
Vol 123 (42) ◽  
pp. 8916-8922
Author(s):  
Jean-Marc Crowet ◽  
Davy Sinnaeve ◽  
Krisztina Fehér ◽  
Yoann Laurin ◽  
Magali Deleu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Molecular Model ◽  
The Self

Nanomanufacturing of high-performance hollow fiber nanofiltration membranes by coating uniform block polymer films from solution

2017 ◽  
Vol 5 (7) ◽  
pp. 3358-3370 ◽  
Author(s):  
Yizhou Zhang ◽  
Ryan A. Mulvenna ◽  
Bryan W. Boudouris ◽  
William A. Phillip
Keyword(s):  
Phase Separation ◽  
Hollow Fiber ◽  
Self Assembly ◽  
High Performance ◽  
Polymer Membranes ◽  
Dip Coating ◽  
The Self ◽  
Separation Method ◽  
Nanofiltration Membranes ◽  
Block Polymer

Block polymer membranes in the hollow fiber geometry were fabricated by combining the dip-coating archetype with the self-assembly and non-solvent induced phase separation method.

Phase separation and selective guest–host binding in multi-component supramolecular self-assembly on Au(111)

2018 ◽  
Vol 54 (75) ◽  
pp. 10570-10573 ◽  
Author(s):  
Linghao Yan ◽  
Guowen Kuang ◽  
Nian Lin
Keyword(s):  
Phase Separation ◽  
Self Assembly ◽  
The Self ◽  
Trimesic Acid

We find a phase separation and selective guest–host inclusion in the self-assembly of trimesic acid, benzenetribenzoic acid and coronene on Au(111).

Resin Self-Alignment Processes for Self-Assembly Systems

2005 ◽  
Vol 127 (1) ◽  
pp. 18-24 ◽  
Author(s):  
Jong-Min Kim ◽  
Kiyokazu Yasuda ◽  
Kozo Fujimoto
Keyword(s):  
Surface Tension ◽  
Numerical Analysis ◽  
Self Assembly ◽  
Fundamental Concept ◽  
The Self ◽  
Oscillatory Motion ◽  
Assembly Systems ◽  
The Relationship

We have demonstrated the self-alignment processes using surface tension of the resin material for the self-assembly systems. It has been known that the surface tension of the resin material is too low to achieve the self-alignment capability. This paper presents a fundamental concept and principles of resin self-alignment processes. The numerical analysis is conducted to enhance understandings of resin self-alignment behavior and the relationship between process-related parameters. It was proved that resin self-alignment is different from the oscillatory motion of solder self-alignment and shows overdamped motion by the experiment. We could achieve the precise alignment of less than 0.4 μm.

scholarly journals Phase Separation of Shell Protein and Enzyme: An Insight into the Biogenesis of a Prokaryotic Metabolosome

2022 ◽  
Author(s):  
Gaurav Kumar ◽  
Sharmistha Sinha
Keyword(s):  
Phase Separation ◽  
Protein Interactions ◽  
Self Assembly ◽  
Bacterial Species ◽  
Protein Structures ◽  
The Self ◽  
Liquid Droplets ◽  
Shell Protein ◽  
Shell Proteins

Bacterial microcompartments are substrate specific metabolic modules that are conditionally expressed in certain bacterial species. These all protein structures have size in the range of 100-150 nm and are formed by the self-assembly of thousands of protein subunits, all encoded by genes belonging to a single operon. The operon contains genes that encode for both enzymes and shell proteins. The shell proteins self-assemble to form the outer coat of the compartment and enzymes are encapsulated within. A perplexing question in MCP biology is to understand the mechanism which governs the formation of these small yet complex assemblages of proteins. In this work we use 1,2-propanediol utilization microcompartments (PduMCP) as a paradigm to identify the factors that drive the self-assembly of MCP proteins. We find that a major shell protein PduBB tend to self-assemble under macromolecular crowded environment and suitable ionic strength. Microscopic visualization and biophysical studies reveal phase separation to be the principle mechanism behind the self-association of shell protein in the presence of salts and macromolecular crowding. The shell protein PduBB interacts with the enzyme diol-dehydratase PduCDE and co-assemble into phase separated liquid droplets. The co-assembly of PduCDE and PduBB results in the enhancement of catalytic activity of the enzyme. A combination of spectroscopic and biochemical techniques shows the relevance of divalent cation Mg2+ in providing stability to intact PduMCP in vivo. Together our results suggest a combination of protein-protein interactions and phase separation guiding the self-assembly of Pdu shell protein and enzyme in solution phase.

A Comparative Study of the Phase Separation of a Nematic Liquid Crystal in the Self-assembling Drying Protein Drops

MRS Advances ◽  
2019 ◽  
Vol 4 (22) ◽  
pp. 1309-1314 ◽  
Author(s):  
Anusuya Pal ◽  
Amalesh Gope ◽  
Germano S. Iannacchione
Keyword(s):  
Liquid Crystal ◽  
Phase Separation ◽  
Self Assembly ◽  
Intensity Variation ◽  
The Self ◽  
Drying Process ◽  
Bright Region ◽  
Self Assembling ◽  
Initial Aqueous Solution ◽  
Significant Difference

ABSTRACTThe drying process, self-assembly of the proteins and the phase separation of a thermotropic liquid crystal (LC) from an initial aqueous solution represent a rich area of study. A focus of this work is to compare the behavior of two different proteins, bovine serum albumin [BSA] and lysozyme [Lys] in the ternary system through optical microscopy. During the drying process, the intensity profile shows three regimes in the presence of LC whereas no intensity variation is observed in its absence in both protein drops. The striking outcome is the presence of an umbilical defect of [+1] strength in every domain near the edge of BSA drop, whereas, each domain has a central dark region surrounded by a bright region in the dried Lys drop. Finally, the crack spacing in the dried Lys drop is reduced in the presence of LC whereas, no significant difference is found in the dried BSA drop.

Sign in / Sign up

Export Citation Format

Share Document