Columnar self-assembly of rhomboid macrocyclic molecules via step-like intermolecular interaction. Crystal formation and gelation

2012 ◽  
Vol 48 (2) ◽  
pp. 278-280 ◽  
Author(s):  
Tomohito Ide ◽  
Daisuke Takeuchi ◽  
Kohtaro Osakada
Keyword(s):  
Intermolecular Interaction ◽  
Self Assembly ◽  
Crystal Formation ◽  
Macrocyclic Molecules

scholarly journals Life under Continuous Streaming: Recrystallization of Low Concentrations of Bacterial SbpA in Dynamic Flow Conditions

Coatings ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 76 ◽  
Author(s):  
Jagoba Iturri ◽  
Alberto Moreno-Cencerrado ◽  
José Toca-Herrera
Keyword(s):  
Self Assembly ◽  
Divalent Cations ◽  
Crystal Formation ◽  
Flow Conditions ◽  
Dynamic Flow ◽  
Protein Film ◽  
Force Microscopy ◽  
Low Concentrations ◽  
Physico Chemical ◽  
Protein Supply

The well-known bacterial S-layer protein SbpA from Lysinibacillus sphaericus CCM2177 induces spontaneous crystal formation via cooperative self-assembly of the protein subunits into an ordered supramolecular structure. Recrystallization occurs in the presence of divalent cations (i.e., Ca2+) and finally leads to producing smooth 2-D crystalline coatings composed of squared (p4) lattice structures. Among the factors interfering in such a process, the rate of protein supply certainly plays an important role since a limited number of accessible proteins might turn detrimental for film completion. Studies so far have mostly focused on high SbpA concentrations provided under stopped-flow or dynamic-flow conditions, thus omitting the possibility of investigating intermediate states, in which dynamic flow is applied for more critical concentrations of SbpA (i.e., 25, 10, and 5 µg/mL). In this work, we have characterized both physico-chemical and topographical aspects of the assembly and recrystallization of SbpA protein in such low concentration conditions by means of in situ Quartz Crystal Microbalance with Dissipation (QCMD) and atomic force microscopy (AFM) measurements, respectively. On the basis of these experiments, we can confirm how the application of a dynamic flow influences the formation of a closed and crystalline protein film from low protein concentrations (i.e., 10 µg/mL), which otherwise would not be formed.

Landau model for self-assembly and liquid crystal formation in surfactant solutions

1992 ◽  
Vol 11 (6) ◽  
pp. 941-947 ◽  
Author(s):  
M. A. Anisimov ◽  
E. E. Gorodetsky ◽  
A. J. Davydov ◽  
A. S. Kurliandsky
Keyword(s):  
Liquid Crystal ◽  
Self Assembly ◽  
Crystal Formation ◽  
Landau Model ◽  
Surfactant Solutions

scholarly journals Nanoparticle crystal formation by solvent-assisted nanoparticle self-assembly probedin situby grazing-incidence small-angle X-ray scattering

2015 ◽  
Vol 71 (a1) ◽  
pp. s391-s391
Author(s):  
Matej Jergel ◽  
Karol Vegso ◽  
Peter Šiffalovič ◽  
Eva Majková ◽  
Adeline Buffet ◽  
...  
Keyword(s):  
Small Angle ◽  
Self Assembly ◽  
Grazing Incidence ◽  
Crystal Formation ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Function and Application of Calixarene Derivatives

2014 ◽  
Vol 887-888 ◽  
pp. 647-650
Author(s):  
Ri Hong Tan
Keyword(s):  
Liquid Crystal ◽  
Self Assembly ◽  
Main Compound ◽  
Molecule Reaction ◽  
Drug Molecules ◽  
Crystal Properties ◽  
Potential Applications ◽  
New Type ◽  
Molecular Catalysis ◽  
Macrocyclic Molecules

Calixarene is the third generation of the main compound. Its molecular recognition, simulation enzyme catalysis, molecular catalysis, analytical chemistry, self-assembly, and other areas of research have made great progress. calixarene represent a well-known family of macrocyclic molecules with broad range of potential applications in engineering materials fields. calixarene derivatives for simulating biological system, or in the form of new drug molecules targeting molecule reaction vessel, molecular switches, etc.; Under certain conditions because some new calixarene derivatives with the liquid crystal properties, so some new type of liquid crystal materials can be screened and prepared.

Guanosine Derivatives: Self-Assembly and Lyotropic Liquid Crystal Formation

2003 ◽  
Vol 398 (1) ◽  
pp. 57-73 ◽  
Author(s):  
Silvia Pieraccini ◽  
Tatiana Giorgi ◽  
Giovanni Gottarelli ◽  
Stefano Masiero ◽  
Gian Piero Spada
Keyword(s):  
Liquid Crystal ◽  
Self Assembly ◽  
Lyotropic Liquid Crystal ◽  
Crystal Formation

Self-Assembly and Liquid Crystal Formation of Folic Acid Salts

1993 ◽  
Vol 32 (2) ◽  
pp. 248-250 ◽  
Author(s):  
Stefania Bonazzi ◽  
Monica Miranda DeMorais ◽  
Giovanni Gottarelli ◽  
Paolo Mariani ◽  
Gian Piero Spada
Keyword(s):  
Folic Acid ◽  
Liquid Crystal ◽  
Self Assembly ◽  
Crystal Formation ◽  
Acid Salts

Easy polymer latex self-assembly and colloidal crystal formation: the case of poly[styrene-co-(2-hydroxyethyl methacrylate)]

1998 ◽  
Vol 144 (1-3) ◽  
pp. 207-217 ◽  
Author(s):  
André Herzog Cardoso ◽  
Carlos Alberto Paula Leite ◽  
Maria Elisabete Darbello Zaniquelli ◽  
Fernando Galembeck
Keyword(s):  
Self Assembly ◽  
Colloidal Crystal ◽  
Crystal Formation ◽  
Hydroxyethyl Methacrylate ◽  
Polymer Latex
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