Multi-dimensional architecture materials of amino acids and metal ions

2018 ◽  
Vol 42 (21) ◽  
pp. 17447-17452
Author(s):  
Guangcheng Wei ◽  
Chunhua Wang ◽  
Liying Ma ◽  
Feng Li ◽  
Zonghua Gao ◽  
...  
Keyword(s):  
Amino Acids ◽  
Metal Ions ◽  
Self Assembly ◽  
Assembly Method

A simple self-assembly method for the preparation of functional multi-dimensional architecture materials.

scholarly journals Self-assembled hybrid nanomaterials with alkaline protease and a variety of metal ions

RSC Advances ◽  
2017 ◽  
Vol 7 (76) ◽  
pp. 48360-48367 ◽  
Author(s):  
Muzi Jing ◽  
Xu Fei ◽  
Weifan Ren ◽  
Jing Tian ◽  
Hui Zhi ◽  
...  
Keyword(s):  
Metal Ions ◽  
Self Assembly ◽  
Alkaline Protease ◽  
Hybrid Nanomaterials ◽  
Assembly Method ◽  
Self Assembled

We have synthesized two kinds of hierarchical flower-like hybrid nanomaterials with alkaline protease and metal ions by self-assembly method.

Single Amino Acid Based Self-Assemblies of Cysteine and Methionine

2018 ◽  
Author(s):  
Nidhi Gour ◽  
Bharti Koshti ◽  
Chandra Kanth P. ◽  
Dhruvi Shah ◽  
Vivek Shinh Kshatriya ◽  
...  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Self Assembly ◽  
Aromatic Amino Acids ◽  
Neutral Condition ◽  
Single Amino Acid ◽  
Binding Assays ◽  
Human Neuroblastoma ◽  
Cytotoxicity Assays ◽  
First Time

We report for the very first time self-assembly of Cysteine and Methionine to discrenible strucutres under neutral condition. To get insights into the structure formation, thioflavin T and Congo red binding assays were done which revealed that aggregates may not have amyloid like characteristics. The nature of interactions which lead to such self-assemblies was purported by coincubating assemblies in urea and mercaptoethanol. Further interaction of aggregates with short amyloidogenic dipeptide diphenylalanine (FF) was assessed. While cysteine aggregates completely disrupted FF fibres, methionine albeit triggered fibrillation. The cytotoxicity assays of cysteine and methionine structures were performed on Human Neuroblastoma IMR-32 cells which suggested that aggregates are not cytotoxic in nature and thus, may not have amyloid like etiology. The results presented in the manuscript are striking, since to the best of our knowledge,this is the first report which demonstrates that even non-aromatic amino acids (cysteine and methionine) can undergo spontaneous self-assembly to form ordered aggregates.

Directive Effect of Chain Length in Modulating Peptide Nano-assemblies

2020 ◽  
Vol 27 (9) ◽  
pp. 923-929
Author(s):  
Gaurav Pandey ◽  
Prem Prakash Das ◽  
Vibin Ramakrishnan
Keyword(s):  
Electron Microscopy ◽  
Amino Acids ◽  
Light Scattering ◽  
Chain Length ◽  
Self Assembly ◽  
The Self ◽  
Ionic Charge ◽  
Self Assembling ◽  
Biophysical Techniques

Background: RADA-4 (Ac-RADARADARADARADA-NH2) is the most extensively studied and marketed self-assembling peptide, forming hydrogel, used to create defined threedimensional microenvironments for cell culture applications. Objectives: In this work, we use various biophysical techniques to investigate the length dependency of RADA aggregation and assembly. Methods: We synthesized a series of RADA-N peptides, N ranging from 1 to 4, resulting in four peptides having 4, 8, 12, and 16 amino acids in their sequence. Through a combination of various biophysical methods including thioflavin T fluorescence assay, static right angle light scattering assay, Dynamic Light Scattering (DLS), electron microscopy, CD, and IR spectroscopy, we have examined the role of chain-length on the self-assembly of RADA peptide. Results: Our observations show that the aggregation of ionic, charge-complementary RADA motifcontaining peptides is length-dependent, with N less than 3 are not forming spontaneous selfassemblies. Conclusion: The six biophysical experiments discussed in this paper validate the significance of chain-length on the epitaxial growth of RADA peptide self-assembly.

Noncanonical Amino Acids for Hypoxia-Responsive Peptide Self-Assembly and Fluorescence

2021 ◽  
Author(s):  
Binbin Hu ◽  
Na Song ◽  
Yawei Cao ◽  
Mingming Li ◽  
Xin Liu ◽  
...  
Keyword(s):  
Amino Acids ◽  
Self Assembly ◽  
Noncanonical Amino Acids

Different Adsorption States between Thiophene and α-Bithiophene Thin Films Prepared by Self-Assembly Method

2003 ◽  
Vol 42 (Part 2, No. 7B) ◽  
pp. L852-L855 ◽  
Author(s):  
Eisuke Ito ◽  
Jaegeun Noh ◽  
Masahiko Hara
Keyword(s):  
Thin Films ◽  
Self Assembly ◽  
Assembly Method

The synthesis of calcium carbonate microparticles with multiple morphologies through self-assembly method

2015 ◽  
Vol 284 ◽  
pp. 253-256 ◽  
Author(s):  
Guang Yuan ◽  
Xiaofeng Chen ◽  
Xian Li ◽  
Qiming Liang ◽  
Guohou Miao ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Self Assembly ◽  
Assembly Method

Layered graphene oxide membranes functioned by amino acids for efficient separation of metal ions

2021 ◽  
Vol 546 ◽  
pp. 149145
Author(s):  
Bo Zheng ◽  
Xianxian Chu ◽  
Han Li ◽  
Xiuli Wu ◽  
Xin Zhao ◽  
...  
Keyword(s):  
Amino Acids ◽  
Graphene Oxide ◽  
Metal Ions ◽  
Separation Of Metal Ions ◽  
Efficient Separation ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes

Preparation and Characterization of Polyaniline Nanotubes Doped with Different Acid

2013 ◽  
Vol 401-403 ◽  
pp. 663-666
Author(s):  
Xue Lian Bai ◽  
Jian Ting Mei ◽  
Zhong Guo Mu ◽  
Yun Bai
Keyword(s):  
Acetic Acid ◽  
Self Assembly ◽  
Ammonium Persulfate ◽  
Tetraacetic Acid ◽  
X Ray Diffraction ◽  
X Ray ◽  
Structure And Property ◽  
Assembly Method ◽  
Polyaniline Nanotubes

Polyaniline (PANI) nanotubes were synthesized separately using amino acetic acid (AA), ethylenediamine tetraacetic acid (EDTA), oxalic acid (OA) as dopant and ammonium persulfate (APS) as oxidant by a self-assembly method. SEM, TEM,FTIR and X-ray diffraction (XRD) and applying the 4 probes method characterized the morphology, structure and property of the product. It was found that nanotubes morphology were synthesized when the [Aci/[A ratio is 1:2.The room template conductivity of the products were studied.

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