Controlling the self-assembly and optical properties of gold nanoclusters and gold nanoparticles biomineralized with bovine serum albumin

RSC Advances ◽  
2015 ◽  
Vol 5 (122) ◽  
pp. 101101-101109 ◽  
Author(s):  
Birgitte H. McDonagh ◽  
Gurvinder Singh ◽  
Sulalit Bandyopadhyay ◽  
Sina M. Lystvet ◽  
Joseph A. Ryan ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Optical Properties ◽  
Bovine Serum Albumin ◽  
Growth Mechanism ◽  
Self Assembly ◽  
Gold Nanoclusters ◽  
The Self ◽  
Time Dependent ◽  
Size Dependent ◽  
Dependent Growth

While the size-dependent optical properties of BSA-stabilized gold nanoclusters are well known, the time-dependent growth mechanism remains to be described.

Vertical segregation in the self-assembly of nanoparticles at the liquid/air interface

Nanoscale ◽  
2014 ◽  
Vol 6 (24) ◽  
pp. 14662-14666 ◽  
Author(s):  
Yanming Liu ◽  
Yang Liu ◽  
Peng Tao ◽  
Wen Shang ◽  
Chengyi Song ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Self Assembly ◽  
The Self ◽  
Bimodal Size Distribution ◽  
Size Dependent ◽  
Colloidal Gold Nanoparticles ◽  
Air Interface ◽  
Vertical Segregation ◽  
One Step ◽  
The One

Vertical segregation was induced by the size-dependent charge neutralization during the one-step interfacial self-assembly of colloidal gold nanoparticles with bimodal size distribution.

scholarly journals Cylindrical Micelles by the Self-Assembly of Crystalline-b-Coil Polyphosphazene-b-P2VP Block Copolymers. Stabilization of Gold Nanoparticles

Molecules ◽  
2019 ◽  
Vol 24 (9) ◽  
pp. 1772 ◽  
Author(s):  
Maria de los Angeles Cortes ◽  
Raquel de la Campa ◽  
Maria Luisa Valenzuela ◽  
Carlos Díaz ◽  
Gabino A. Carriedo ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Block Copolymers ◽  
Self Assembly ◽  
Cationic Polymerization ◽  
The Self ◽  
The Novel ◽  
Selective Solvent ◽  
The Core ◽  
Cylindrical Micelles ◽  
Main Factor

During the last number of years a variety of crystallization-driven self-assembly (CDSA) processes based on semicrystalline block copolymers have been developed to prepare a number of different nanomorphologies in solution (micelles). We herein present a convenient synthetic methodology combining: (i) The anionic polymerization of 2-vinylpyridine initiated by organolithium functionalized phosphane initiators; (ii) the cationic polymerization of iminophosphoranes initiated by –PR2Cl2; and (iii) a macromolecular nucleophilic substitution step, to prepare the novel block copolymers poly(bistrifluoroethoxy phosphazene)-b-poly(2-vinylpyridine) (PTFEP-b-P2VP), having semicrystalline PTFEP core forming blocks. The self-assembly of these materials in mixtures of THF (tetrahydrofuran) and 2-propanol (selective solvent to P2VP), lead to a variety of cylindrical micelles of different lengths depending on the amount of 2-propanol added. We demonstrated that the crystallization of the PTFEP at the core of the micelles is the main factor controlling the self-assembly processes. The presence of pyridinyl moieties at the corona of the micelles was exploited to stabilize gold nanoparticles (AuNPs).

Aurophilic Interactions in the Self‐Assembly of Gold Nanoclusters into Nanoribbons with Enhanced Luminescence

2019 ◽  
Vol 131 (24) ◽  
pp. 8223-8228 ◽  
Author(s):  
Zhennan Wu ◽  
Yonghua Du ◽  
Jiale Liu ◽  
Qiaofeng Yao ◽  
Tiankai Chen ◽  
...  
Keyword(s):  
Self Assembly ◽  
Gold Nanoclusters ◽  
The Self ◽  
Enhanced Luminescence ◽  
Aurophilic Interactions

Analysis of Crack-Like Flaws and Relative Ranking of Pipeline Segments for Prioritizing Mitigation Efforts

2006 ◽  
Author(s):  
J. A. Beavers ◽  
C. J. Maier ◽  
C. E. Jaske ◽  
T. A. Bubenik
Keyword(s):  
Crack Growth ◽  
Growth Mechanism ◽  
Pressure Fluctuations ◽  
Time Dependent ◽  
Remaining Life ◽  
Direct Examination ◽  
Cyclic Pressure ◽  
Integrity Management ◽  
Dependent Growth ◽  
Fatigue Corrosion

In integrity management programs, crack-like indications am sometimes detected on pipelines by means of hydrostatic testing, direct examination, or in-line inspection. Many of these are non-injurious mill defects while some might undergo time dependent growth. Mechanism for growth include fatigue, corrosion fatigue, and stress corrosion cracking. The cyclic pressure fluctuations typically present on operating pipelines affect all three mechanisms of crack growth. This paper describes several methods for assessing the remaining life of pipeline segments containing growing defects.

Recovery and redispersion of gold nanoparticles using the self-assembly of a pH sensitive zwitterionic amphiphile

2014 ◽  
Vol 50 (85) ◽  
pp. 12933-12936 ◽  
Author(s):  
Clara Morita-Imura ◽  
Yoshiro Imura ◽  
Takeshi Kawai ◽  
Hitoshi Shindo
Keyword(s):  
Gold Nanoparticles ◽  
Self Assembly ◽  
Au Nanoparticles ◽  
Ph Sensitive ◽  
The Self ◽  
Ph Responsive

The pH-responsive self-assembly of a zwitterionic amphiphile was expanded to the recovery of gold (Au) nanoparticles. Multilayered lamellae were incorporated into the nanoparticles. Redispersion of nanoparticles was achieved by the transition of self-assembly based on pH.

Stabilization of α-helices by the self-assembly of macrocyclic peptides on the surface of gold nanoparticles for molecular recognition

2013 ◽  
Vol 49 (69) ◽  
pp. 7617 ◽  
Author(s):  
Boram Kim ◽  
Sung-ju Choi ◽  
So-hee Han ◽  
Kang-Yell Choi ◽  
Yong-beom Lim
Keyword(s):  
Gold Nanoparticles ◽  
Molecular Recognition ◽  
Self Assembly ◽  
The Self ◽  
Macrocyclic Peptides

Modulations in the self-assembly of bovine serum albumin by enhanced depolymerisation and condensation induced upon stirring

RSC Advances ◽  
2016 ◽  
Vol 6 (95) ◽  
pp. 92349-92359
Author(s):  
Shivnetra Saha ◽  
Rupali Shekhawat ◽  
Shashank Deep
Keyword(s):  
Bovine Serum Albumin ◽  
Serum Albumin ◽  
Self Assembly ◽  
Bovine Serum ◽  
The Self ◽  
Unusual Phenomenon

An unusual phenomenon in the aggregation profile of BSA in the presence of CTAB, brought about by stirring, is reported here.

Sign in / Sign up

Export Citation Format

Share Document