scholarly journals Photoactive properties of supramolecular assembled short peptides

2019 ◽  
Vol 48 (16) ◽  
pp. 4387-4400 ◽  
Author(s):  
Bingbing Sun ◽  
Kai Tao ◽  
Yi Jia ◽  
Xuehai Yan ◽  
Qianli Zou ◽  
...  
Keyword(s):  
Optical Properties ◽  
Short Peptides ◽  
Short Peptide ◽  
Review Current ◽  
Advanced Applications

In this review, current studies on the optical properties and modulation of photoactive short peptide self-assemblies, as well as their diverse advanced applications, are summarized.

scholarly journals A Global Review on Short Peptides: Frontiers and Perspectives

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 430
Author(s):  
Vasso Apostolopoulos ◽  
Joanna Bojarska ◽  
Tsun-Thai Chai ◽  
Sherif Elnagdy ◽  
Krzysztof Kaczmarek ◽  
...  
Keyword(s):  
Protein Interactions ◽  
Targeted Delivery ◽  
Swot Analysis ◽  
Functional Materials ◽  
Great Promise ◽  
Short Peptides ◽  
Altered Peptide Ligands ◽  
Short Peptide ◽  
Domains Of Life

Peptides are fragments of proteins that carry out biological functions. They act as signaling entities via all domains of life and interfere with protein-protein interactions, which are indispensable in bio-processes. Short peptides include fundamental molecular information for a prelude to the symphony of life. They have aroused considerable interest due to their unique features and great promise in innovative bio-therapies. This work focusing on the current state-of-the-art short peptide-based therapeutical developments is the first global review written by researchers from all continents, as a celebration of 100 years of peptide therapeutics since the commencement of insulin therapy in the 1920s. Peptide “drugs” initially played only the role of hormone analogs to balance disorders. Nowadays, they achieve numerous biomedical tasks, can cross membranes, or reach intracellular targets. The role of peptides in bio-processes can hardly be mimicked by other chemical substances. The article is divided into independent sections, which are related to either the progress in short peptide-based theranostics or the problems posing challenge to bio-medicine. In particular, the SWOT analysis of short peptides, their relevance in therapies of diverse diseases, improvements in (bio)synthesis platforms, advanced nano-supramolecular technologies, aptamers, altered peptide ligands and in silico methodologies to overcome peptide limitations, modern smart bio-functional materials, vaccines, and drug/gene-targeted delivery systems are discussed.

Unexpectedly Rigid Short Peptide Foldamers in which NH-π and CH-π Interactions are Reserved in Solution

2021 ◽  
Author(s):  
Luhan Zhai ◽  
Masayuki Nara ◽  
Yuko Otani ◽  
Tomohiko Ohwada
Keyword(s):  
Short Peptides ◽  
Short Peptide ◽  
Π Interactions

NH-π and CH-π interactions, due to its weak character, are not easily to be identified in solution. We report a group of isolable short peptides with stable folds, in which...

Effects of Helical Distortions on the Optical Properties of Amide NH Infrared Absorption in Short Peptides in Solution

2002 ◽  
Vol 106 (22) ◽  
pp. 5733-5738 ◽  
Author(s):  
B. Pispisa ◽  
A. Palleschi ◽  
L. Stella ◽  
M. Venanzi ◽  
C. Mazzuca ◽  
...  
Keyword(s):  
Optical Properties ◽  
Infrared Absorption ◽  
Short Peptides

scholarly journals Identification and Antimicrobial Activity of Medium-Sized and Short Peptides from Yellowfin Tuna (Thunnus albacares) Simulated Gastrointestinal Digestion

Foods ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1185
Author(s):  
Andrea Cerrato ◽  
Anna Laura Capriotti ◽  
Federico Capuano ◽  
Chiara Cavaliere ◽  
Angela Michela Immacolata Montone ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Solid Phase ◽  
Model Organism ◽  
Graphitized Carbon Black ◽  
Yellowfin Tuna ◽  
Short Peptides ◽  
Gastrointestinal Digestion ◽  
Exact Mass ◽  
Short Peptide ◽  
Simulated Gastrointestinal Digestion

Due to the rapidly increasing resistance to conventional antibiotics, antimicrobial peptides are emerging as promising novel drug candidates. In this study, peptide fragments were obtained from yellowfin tuna muscle by simulated gastrointestinal digestion, and their antimicrobial activity towards Gram-positive and Gram-negative bacteria was investigated. In particular, the antimicrobial activity of both medium- and short-sized peptides was investigated by using two dedicated approaches. Medium-sized peptides were purified by solid phase extraction on C18, while short peptides were purified thanks to a graphitized carbon black sorbent. For medium-sized peptide characterization, a peptidomic strategy based on shotgun proteomics analysis was employed, and identification was achieved by matching protein sequence database by homology, as yellowfin tuna is a non-model organism, leading to the identification of 403 peptides. As for short peptide sequences, an untargeted suspect screening approach was carried out by means of an inclusion list presenting the exact mass to charge ratios (m/z) values for all di-, tri- and tetrapeptides. In total, 572 short sequences were identified thanks to a customized workflow dedicated to short peptide analysis implemented on Compound Discoverer software.

Phthalocyanines as materials for advanced technologies: some examples

2004 ◽  
Vol 08 (07) ◽  
pp. 915-933 ◽  
Author(s):  
Danilo Dini ◽  
Michael Hanack
Keyword(s):  
Electrical Conductivity ◽  
Optical Properties ◽  
Nonlinear Optical ◽  
Artificial Light ◽  
High Chemical ◽  
Advanced Technologies ◽  
Related Compounds ◽  
Modern Technologies ◽  
Advanced Applications ◽  
High Chemical Stability

Metallophthalocyanine complexes and related compounds play an important role in many advanced applications and modern technologies mostly by virtue of their characteristic optical absorption and high chemical stability. As a class of materials made well-known by their vivid and fast colors, it is expected that metallophthalocyanines and analogues, e.g. naphthalocyanines, are going to keep their role with the increasing use of natural and artificial light in the technologies of the future. In the present review some relevant properties of phthalocyanines and related macrocycles for technological applications are analyzed. In particular the electrical conductivity and photoconductivity as well as some nonlinear optical properties (mostly optical limiting), of phthalocyanines and related compounds are discussed.

Amphiphilic short peptide modulated wormlike micelle formation with pH and metal ion dual-responsive properties

RSC Advances ◽  
2015 ◽  
Vol 5 (116) ◽  
pp. 95604-95612 ◽  
Author(s):  
Dong Wang ◽  
Yawei Sun ◽  
Meiwen Cao ◽  
Jiqian Wang ◽  
Jingcheng Hao
Keyword(s):  
Metal Ion ◽  
Micelle Formation ◽  
Wormlike Micelles ◽  
Short Peptides ◽  
Short Peptide ◽  
Dual Responsive ◽  
Wormlike Micelle

Amphiphilic short peptides (ASPs) and surfactants (C14DMAO) were employed to prepare dual-responsive wormlike micelles.

scholarly journals Cellulose Nanocrystals: Obtaining and Sources of a Promising Bionanomaterial for Advanced Applications

2020 ◽  
Vol 11 (4) ◽  
pp. 11797-11816
Keyword(s):  
Optical Properties ◽  
Cellulose Nanocrystals ◽  
Critical Analysis ◽  
Industrial Wastes ◽  
Advanced Materials ◽  
Cellulose Nanomaterials ◽  
Interesting Alternative ◽  
Advanced Applications

Cellulose nanomaterials are one of the most relevant scientific-technological discoveries in recent years. Cellulose nanocrystals (CNCs) stand out among them because their extraordinary chemical, mechanical, thermal, and optical properties make them an interesting alternative to manufacture advanced materials from the most abundant biopolymer on Earth. This work presents a critical analysis of the literature published in the last years, emphasizing the various obtaining processes that have emerged in the search for greener methods. A comparative table of the processes used in the extraction of CNCs from various sources (non-edible biomass and agro-industrial wastes) is included, indicating the process’s effectiveness and the characteristics and applications of this sustainable advanced bionanomaterial.

scholarly journals SPA: Short peptide analyzer of intrinsic disorder status of short peptides

2010 ◽  
Vol 15 (6) ◽  
pp. 635-646 ◽  
Author(s):  
Bin Xue ◽  
Wei-Lun Hsu ◽  
Jun-Ho Lee ◽  
Hua Lu ◽  
A. Keith Dunker ◽  
...  
Keyword(s):  
Intrinsic Disorder ◽  
Short Peptides ◽  
Short Peptide

Design of objective lens for 200-kV high-resolution electron microscopes

1983 ◽  
Vol 41 ◽  
pp. 314-315
Author(s):  
K. Tsuno ◽  
T. Honda ◽  
Y. Harada ◽  
M. Naruse
Keyword(s):  
Optical Properties ◽  
Computer Technology ◽  
Axial Magnetic Field ◽  
Chromatic Aberration ◽  
Objective Lens ◽  
Resolution Electron ◽  
Correction Of Astigmatism ◽  
Three Stages ◽  
Electron Microscopes ◽  
Stage 1

Developement of computer technology provides much improvements on electron microscopy, such as simulation of images, reconstruction of images and automatic controll of microscopes (auto-focussing and auto-correction of astigmatism) and design of electron microscope lenses by using a finite element method (FEM). In this investigation, procedures for simulating the optical properties of objective lenses of HREM and the characteristics of the new lens for HREM at 200 kV are described.The process for designing the objective lens is divided into three stages. Stage 1 is the process for estimating the optical properties of the lens. Firstly, calculation by FEM is made for simulating the axial magnetic field distributions Bzc of the lens. Secondly, electron ray trajectory is numerically calculated by using Bzc. And lastly, using Bzc and ray trajectory, spherical and chromatic aberration coefficients Cs and Cc are numerically calculated. Above calculations are repeated by changing the shape of lens until! to find an optimum aberration coefficients.

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