Uncovering the Self-Assembly of DNA Nanostructures by Thermodynamics and Kinetics

2014 ◽  
Vol 47 (6) ◽  
pp. 1861-1870 ◽  
Author(s):  
Xixi Wei ◽  
Jeanette Nangreave ◽  
Yan Liu
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Dna Nanostructures ◽  
Thermodynamics And Kinetics

Size controllable DNA nanogels from the self-assembly of DNA nanostructures through multivalent host–guest interactions

Nanoscale ◽  
2018 ◽  
Vol 10 (1) ◽  
pp. 222-230 ◽  
Author(s):  
Hari Veera Prasad Thelu ◽  
Shine K. Albert ◽  
Murali Golla ◽  
Nithiyanandan Krishnan ◽  
Divya Ram ◽  
...  
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Dna Nanostructures

Design of cell permeable DNA nanogels using multivalent host–guest interactions is reported.

High-Throughput, Real-Time Monitoring of the Self-Assembly of DNA Nanostructures by FRET Spectroscopy

2008 ◽  
Vol 47 (11) ◽  
pp. 2135-2137 ◽  
Author(s):  
Barbara Saccà ◽  
Rebecca Meyer ◽  
Udo Feldkamp ◽  
Hendrik Schroeder ◽  
Christof M. Niemeyer
Keyword(s):  
Real Time ◽  
High Throughput ◽  
Self Assembly ◽  
The Self ◽  
Dna Nanostructures ◽  
Real Time Monitoring

DNA logic assembly powered by a triplex-helix molecular switch for extracellular pH imaging

2018 ◽  
Vol 54 (61) ◽  
pp. 8498-8501 ◽  
Author(s):  
Hongjie Qi ◽  
Shuzhen Yue ◽  
Sai Bi ◽  
Caifeng Ding ◽  
Weiling Song
Keyword(s):  
Self Assembly ◽  
Molecular Switch ◽  
Extracellular Ph ◽  
The Self ◽  
Hybridization Chain Reaction ◽  
Dna Nanostructures ◽  
Chain Reaction ◽  
Molecular Logic ◽  
Ph Imaging ◽  
Logic Operations

A strategy is rationally designed to finely control the hybridization chain reaction (HCR) for the self-assembly of DNA nanostructures by simply changing the pH, which is successfully applied to molecular logic operations and extracellular pH imaging.

Peptide self-assembly: thermodynamics and kinetics

2016 ◽  
Vol 45 (20) ◽  
pp. 5589-5604 ◽  
Author(s):  
Juan Wang ◽  
Kai Liu ◽  
Ruirui Xing ◽  
Xuehai Yan
Keyword(s):  
Self Assembly ◽  
Building Blocks ◽  
The Self ◽  
Thermodynamics And Kinetics ◽  
Structural Regulation

This review is focused on thermodynamic and kinetic contributions to the self-assembly and structural regulation of representative peptide building blocks.

The Nature of Rapidly Extracted Phycocyanin from the Blue-Green Alga Plectonema Boryanum

1971 ◽  
Vol 29 ◽  
pp. 366-367
Author(s):  
M. Kessel ◽  
R. MacColl
Keyword(s):  
Self Assembly ◽  
Analytical Ultracentrifugation ◽  
Uranyl Acetate ◽  
The Self ◽  
Major Protein ◽  
Subunit Structure ◽  
Blue Green Alga ◽  
Thin Sections ◽  
Blue Green Algae ◽  
Cacodylate Buffer

The major protein of the blue-green algae is the biliprotein, C-phycocyanin (Amax = 620 nm), which is presumed to exist in the cell in the form of distinct aggregates called phycobilisomes. The self-assembly of C-phycocyanin from monomer to hexamer has been extensively studied, but the proposed next step in the assembly of a phycobilisome, the formation of 19s subunits, is completely unknown. We have used electron microscopy and analytical ultracentrifugation in combination with a method for rapid and gentle extraction of phycocyanin to study its subunit structure and assembly.To establish the existence of phycobilisomes, cells of P. boryanum in the log phase of growth, growing at a light intensity of 200 foot candles, were fixed in 2% glutaraldehyde in 0.1M cacodylate buffer, pH 7.0, for 3 hours at 4°C. The cells were post-fixed in 1% OsO4 in the same buffer overnight. Material was stained for 1 hour in uranyl acetate (1%), dehydrated and embedded in araldite and examined in thin sections.

Interrelationship of the cellular distribution and secretion of regular structure (RS) protein in Bacillus licheniformis nm 105

1992 ◽  
Vol 50 (1) ◽  
pp. 712-713
Author(s):  
Xiaorong Zhu ◽  
Richard McVeigh ◽  
Bijan K. Ghosh
Keyword(s):  
Alkaline Phosphatase ◽  
Bacillus Licheniformis ◽  
Self Assembly ◽  
Gel Electrophoresis ◽  
Culture Supernatant ◽  
Regular Structure ◽  
The Self ◽  
Cellular Distribution ◽  
Structural Protein ◽  
Laboratory Cultures

A mutant of Bacillus licheniformis 749/C, NM 105 exhibits some notable properties, e.g., arrest of alkaline phosphatase secretion and overexpression and hypersecretion of RS protein. Although RS is known to be widely distributed in many microbes, it is rarely found, with a few exceptions, in laboratory cultures of microorganisms. RS protein is a structural protein and has the unusual properties to form aggregate. This characteristic may have been responsible for the self assembly of RS into regular tetragonal structures. Another uncommon characteristic of RS is that enhanced synthesis and secretion which occurs when the cells cease to grow. Assembled RS protein with a tetragonal structure is not seen inside cells at any stage of cell growth including cells in the stationary phase of growth. Gel electrophoresis of the culture supernatant shows a very large amount of RS protein in the stationary culture of the B. licheniformis. It seems, Therefore, that the RS protein is cotranslationally secreted and self assembled on the envelope surface.

Nanoscale Self-Assembly Using Ion and Electron Beam Techniques: A Rapid Review

MRS Advances ◽  
2020 ◽  
Vol 5 (64) ◽  
pp. 3507-3520
Author(s):  
Chunhui Dai ◽  
Kriti Agarwal ◽  
Jeong-Hyun Cho
Keyword(s):  
Electron Beam ◽  
Self Assembly ◽  
Ion Beam ◽  
Three Dimensional ◽  
The Self ◽  
Stress Generation ◽  
Rapid Review ◽  
High Yield ◽  
3D Nanostructures ◽  
Self Assembled

AbstractNanoscale self-assembly, as a technique to transform two-dimensional (2D) planar patterns into three-dimensional (3D) nanoscale architectures, has achieved tremendous success in the past decade. However, an assembly process at nanoscale is easily affected by small unavoidable variations in sample conditions and reaction environment, resulting in a low yield. Recently, in-situ monitored self-assembly based on ion and electron irradiation has stood out as a promising candidate to overcome this limitation. The usage of ion and electron beam allows stress generation and real-time observation simultaneously, which significantly enhances the controllability of self-assembly. This enables the realization of various complex 3D nanostructures with a high yield. The additional dimension of the self-assembled 3D nanostructures opens the possibility to explore novel properties that cannot be demonstrated in 2D planar patterns. Here, we present a rapid review on the recent achievements and challenges in nanoscale self-assembly using electron and ion beam techniques, followed by a discussion of the novel optical properties achieved in the self-assembled 3D nanostructures.

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