Side chain functional carbazole‐fluorene electroactive polymers: Optical, electrochemical properties, antimicrobial activity and thin film morphologies

2020 ◽  
pp. 50325
Author(s):  
Çağla Meriç ◽  
Savas Kanbur ◽  
Fatma Baycan
Keyword(s):  
Thin Film ◽  
Antimicrobial Activity ◽  
Electrochemical Properties ◽  
Electroactive Polymers ◽  
Side Chain

Electrochemical properties of tethered lipid bilayers on thin film silver substrates

2021 ◽  
pp. 138726
Author(s):  
Indrė Aleknavičienė ◽  
Marija Jankunec ◽  
Tadas Penkauskas ◽  
Gintaras Valinčius
Keyword(s):  
Thin Film ◽  
Electrochemical Properties ◽  
Lipid Bilayers

scholarly journals Development of Antimicrobial Stapled Peptides Based on Magainin 2 Sequence

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 444
Author(s):  
Motoharu Hirano ◽  
Chihiro Saito ◽  
Hidetomo Yokoo ◽  
Chihiro Goto ◽  
Ryuji Kawano ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Amino Acid ◽  
Hemolytic Activity ◽  
Helical Structure ◽  
Antimicrobial Activities ◽  
Side Chain ◽  
Membrane Disruption ◽  
Amino Acid Residues ◽  
Electrophysiological Measurements ◽  
Cell Membrane Disruption

Magainin 2 (Mag2), which was isolated from the skin of the African clawed frog, is a representative antimicrobial peptide (AMP) that exerts antimicrobial activity via microbial membrane disruption. It has been reported that the helicity and amphipathicity of Mag2 play important roles in its antimicrobial activity. We investigated and recently reported that 17 amino acid residues of Mag2 are required for its antimicrobial activity, and accordingly developed antimicrobial foldamers containing α,α-disubstituted amino acid residues. In this study, we further designed and synthesized a set of Mag2 derivatives bearing the hydrocarbon stapling side chain for helix stabilization. The preferred secondary structures, antimicrobial activities, and cell-membrane disruption activities of the synthesized peptides were evaluated. Our analyses revealed that hydrocarbon stapling strongly stabilized the helical structure of the peptides and enhanced their antimicrobial activity. Moreover, peptide 2 stapling between the first and fifth position from the N-terminus showed higher antimicrobial activity than that of Mag2 against both gram-positive and gram-negative bacteria without exerting significant hemolytic activity. To investigate the modes of action of tested peptides 2 and 8 in antimicrobial and hemolytic activity, electrophysiological measurements were performed.

Third-order optical nonlinearity of azobenzene side-chain polymer thin film

2007 ◽  
Vol 244 (6) ◽  
pp. 2166-2171 ◽  
Author(s):  
Tingchao He ◽  
Yongguang Cheng ◽  
Changshun Wang ◽  
Tingjian Jia ◽  
Pengwei Li ◽  
...  
Keyword(s):  
Thin Film ◽  
Optical Nonlinearity ◽  
Side Chain ◽  
Third Order ◽  
Polymer Thin Film ◽  
Chain Polymer

Diketopyrrolopyrrole-based polymer with a semi-fluorinated side chain for high-performance organic thin-film transistors

RSC Advances ◽  
2016 ◽  
Vol 6 (35) ◽  
pp. 29164-29171 ◽  
Author(s):  
Kangjian Miao ◽  
Gil Jo Chae ◽  
Xiaoxue Wu ◽  
Qinghai Shu ◽  
Xin Zhu ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
High Performance ◽  
Hole Mobility ◽  
Organic Thin Film Transistors ◽  
Side Chain ◽  
Organic Thin Film

A semi-fluorinated DPP based polymer showed hole mobility about 3 times higher than did its non-fluorinated analogue.

Investigation on structural and electrochemical properties of binder free nanostructured nickel oxide thin film

2015 ◽  
Vol 161 ◽  
pp. 694-697 ◽  
Author(s):  
Navaneethan Duraisamy ◽  
A. Numan ◽  
K. Ramesh ◽  
Kyung-Hyun Choi ◽  
S. Ramesh ◽  
...  
Keyword(s):  
Thin Film ◽  
Nickel Oxide ◽  
Electrochemical Properties ◽  
Oxide Thin Film ◽  
Binder Free ◽  
Nickel Oxide Thin Film

scholarly journals Structural and Electrochemical Properties of Lithium Nickel Oxide Thin Films

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Gyu-bong Cho ◽  
Tae-hoon Kwon ◽  
Tae-hyun Nam ◽  
Sun-chul Huh ◽  
Byeong-keun Choi ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Electrochemical Properties ◽  
Discharge Capacity ◽  
Oxygen Deficiency ◽  
Oxide Phase ◽  
Rf Magnetron Sputtering ◽  
X Ray Diffraction ◽  
X Ray ◽  
Lithium Nickel Oxide

LiNiO2thin films were fabricated by RF magnetron sputtering. The microstructure of the films was determined by X-ray diffraction and field-emission scanning electron microscopy. The electrochemical properties were investigated with a battery cycler using coin-type half-cells. The LiNiO2thin films annealed below 500°C had the surface carbonate. The results suggest that surface carbonate interrupted the Li intercalation and deintercalation during charge/discharge. Although the annealing process enhanced the crystallization of LiNiO2, the capacity did not increase. When the annealing temperature was increased to 600°C, the FeCrNiO4oxide phase was generated and the discharge capacity decreased due to an oxygen deficiency in the LiNiO2thin film. The ZrO2-coated LiNiO2thin film provided an improved discharge capacity compared to bare LiNiO2thin film suggesting that the improved electrochemical characteristic may be attributed to the inhibition of surface carbonate by ZrO2coating layer.

scholarly journals Microstructure and electrochemical properties of nanoporous gold produced by dealloying Au-based thin film nanoglass

2018 ◽  
Vol 33 (18) ◽  
pp. 2661-2670 ◽  
Author(s):  
Pierre Denis ◽  
Hans-Jörg Fecht ◽  
Yanpeng Xue ◽  
Eirini Maria Paschalidou ◽  
Paola Rizzi ◽  
...  
Keyword(s):  
Thin Film ◽  
Electrochemical Properties ◽  
Nanoporous Gold ◽  
Image Position

Abstract

Reversible photoinduced wettability and antimicrobial activity of Ga2O3 thin film upon UVC irradiation

2022 ◽  
pp. 125746
Author(s):  
Sunjae Kim ◽  
Sangheon Jeon ◽  
Seon Yeong Chae ◽  
Myunghun Shin ◽  
Jong Hyun Seo ◽  
...  
Keyword(s):  
Thin Film ◽  
Antimicrobial Activity ◽  
Ga2o3 Thin Film

Effect of Thin Film to Boost the Electrochemical Properties of LiMn1.5Ni0.5O4

2021 ◽  
Author(s):  
Wenbin Luo ◽  
Zisheng Chao ◽  
Shuangxing Lu ◽  
Yanhui Liu ◽  
Jincheng Fan
Keyword(s):  
Thin Film ◽  
Electrochemical Properties
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