Peptide-templated synthesis of branched MnO₂nanowires with improved electrochemical performances

Abstract

Self-assembled peptide nanofibers can template the formation of branched MnO2 nanowires, which show improved electrochemical properties.

Hydroxyapatite Formation on Self-Assembling Peptides with Differing Secondary Structures and Their Selective Adsorption for Proteins

“…Lu et al designed β-folded glutamic acid (leucine–glutamic acid) 9 (E(LE) 9 ) peptides, with its peptides working as a key player in the formation of calcium oxalate nanosheets [25]. Xu and colleagues reported the synthesis of inorganic materials based on short peptide self-assembly designed as I m K n (e.g., isoleucine–isoleucine–isoleucine–lysine, I 3 K), I m E n (e.g., isoleucine–isoleucine–isoleucine–glutamic acid, I 3 E), and I m R n (e.g., isoleucine–isoleucine–isoleucine–isoleucine–arginine–arginine, I 4 R 2 ) [26,27,28,29]. Xu et al revealed that control of morphology and size of nanostructures were observed by using a self-assembling peptide template.…”

Electrodeposition of Binder-Free Peptide/Co(OH)2Nanohybrid Electrodes for Solid-State Symmetric Supercapacitors

“…Bioinspired hybrid nanomaterials have been explored in the area of sustainable energy storage considering their promising properties, such as ecofriendly behavior, flexible nature, low cost, high energy storage capacity, and cyclic stability. − Several electrode materials such as carbon materials, oxides, − hydroxides, and conducting polymers have been explored to fabricate energy-storage devices. Cobalt hydroxide-based hybrid materials have paramount importance, which provide a sustainable energy path for the generation of clean, cost-effective, and renewable energy storage properties. − Currently, researchers are engaged in the development of organic–inorganic nanohybrid materials. ,,− Organic molecules with acid functionalities have drawn considerable attention due to their binding with inorganic moieties, which form organic–inorganic nanohybrid materials. ,,− Therefore, structurally flexible and environmentally compatible self-assembling peptides with metal interacting functional groups have been used for the construction of nanohybrid materials. ,, In addition, the reported self-assembling peptides such as diphenylalanine and aromatic derivatives have exhibited immense mechanical, electrochemical, and optical properties. ,,, Rosenman et al have modified a carbon electrode with bioinspired diphenylalanine-based peptide nanotubes for supercapacitor (SC) applications . Furthermore, Wang et al have fabricated a device to light up a light-emitting diode (LED) by using a Fmoc-EF-NH 2 -based hydrogel and a thin layer of TiO 2 .…”

“…Organic–inorganic nanohybrid materials have been explored in the production of energy storage and conversion devices in recent years. Because of their extended cycle life, light weight, high charge/discharge rate, and safe and ecofriendly nature, SCs have been appraised as the most encouraging electrode materials . The electrochemical charge storage mechanism in SCs is mainly governed by the properties of the electrode material.…”

“…16,20,25−29 Therefore, structurally flexible and environmentally compatible self-assembling peptides with metal interacting functional groups have been used for the construction of nanohybrid materials. 2,11,30 In addition, the reported self-assembling peptides such as diphenylalanine and aromatic derivatives have exhibited immense mechanical, electrochemical, and optical properties. 8,14,19,31 Rosenman et al have modified a carbon electrode with bioinspired diphenylalanine-based peptide nanotubes for supercapacitor (SC) applications.…”

“…Because of their extended cycle life, light weight, high charge/discharge rate, and safe and ecofriendly nature, SCs have been appraised as the most encouraging electrode materials. 11 The electrochemical charge storage mechanism in SCs is mainly governed by the properties of the electrode material. On the electrode−electrolyte interface, the charge storage process primarily involves the creation of an electric double layer or quick Faradic redox processes.…”