π-Electron rich small molecule sensors for the recognition of nitroaromatics

2015 ◽  
Vol 51 (89) ◽  
pp. 16014-16032 ◽  
Author(s):  
Sankarasekaran Shanmugaraju ◽  
Partha Sarathi Mukherjee
Keyword(s):  
Small Molecule ◽  
Fluorescent Sensors ◽  
Review Article ◽  
Special Focus ◽  
Nitroaromatic Explosives ◽  
Recent Developments ◽  
Made In

In this review article we provide an overview of the recent developments made in small molecule-based turn-off fluorescent sensors for nitroaromatic explosives with special focus on organic and H-bonded supramolecular sensors.

scholarly journals Recent Advances in Flavin-Dependent Halogenase Biocatalysis: Sourcing, Engineering, and Application

Catalysts ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1030 ◽  
Author(s):  
Johannes Büchler ◽  
Athena Papadopoulou ◽  
Rebecca Buller
Keyword(s):  
Small Molecule ◽  
Halogen Atom ◽  
Reaction Engineering ◽  
Special Focus ◽  
Molecular Scaffolds ◽  
Reaction Conditions ◽  
Bioactive Substances ◽  
Application Range ◽  
Technological Value ◽  
Recent Developments

The introduction of a halogen atom into a small molecule can effectively modulate its properties, yielding bioactive substances of agrochemical and pharmaceutical interest. Consequently, the development of selective halogenation strategies is of high technological value. Besides chemical methodologies, enzymatic halogenations have received increased interest as they allow the selective installation of halogen atoms in molecular scaffolds of varying complexity under mild reaction conditions. Today, a comprehensive library of aromatic halogenases exists, and enzyme as well as reaction engineering approaches are being explored to broaden this enzyme family’s biocatalytic application range. In this review, we highlight recent developments in the sourcing, engineering, and application of flavin-dependent halogenases with a special focus on chemoenzymatic and coupled biosynthetic approaches.

scholarly journals Recent developments of small molecule γ-secretase modulators for Alzheimer's disease

2020 ◽  
Vol 11 (9) ◽  
pp. 1003-1022 ◽  
Author(s):  
Shekar Mekala ◽  
Grady Nelson ◽  
Yue-Ming Li
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Small Molecule ◽  
Recent Progress ◽  
Review Article ◽  
Gamma Secretase ◽  
Recent Developments

This review article highlights the recent progress and outlook for small molecule gamma secretase modulators for potential Alzheimer's therapies.

scholarly journals Development in Additive Methods in Aramid Fiber Surface Modification to Increase Fiber-Matrix Adhesion: A Review

Coatings ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 556 ◽  
Author(s):  
Sarianna Palola ◽  
Jyrki Vuorinen ◽  
Jacques W. M. Noordermeer ◽  
Essi Sarlin
Keyword(s):  
Surface Modification ◽  
Fiber Surface ◽  
Review Article ◽  
Special Focus ◽  
Future Trends ◽  
Mechanical Interlocking ◽  
Aramid Fibers ◽  
Adhesion Promotion ◽  
Recent Developments ◽  
Additive Methods

This review article highlights and summarizes the recent developments in the field of surface modification methods for aramid fibers. Special focus is on methods that create a multifunctional fiber surface by incorporating nanostructures and enabling mechanical interlocking. To give a complete picture of adhesion promotion with aramids, the specific questions related to the challenges in aramid-matrix bonding are also shortly presented. The main discussion of the surface modification approaches is divided into sections according to how material is added to the fiber surface; (1) coating, (2) grafting and (3) growing. To provide a comprehensive view of the most recent developments in the field, other methods with similar outcomes, are also shortly reviewed. To conclude, future trends and insights are discussed.

Recent Developments in the Downstream Processing of Phycobiliproteins from Algae: A Review

2021 ◽  
Vol 06 ◽  
Author(s):  
Ayekpam Chandralekha Devi ◽  
G. K. Hamsavi ◽  
Simran Sahota ◽  
Rochak Mittal ◽  
Hrishikesh A. Tavanandi ◽  
...  
Keyword(s):  
Cell Wall ◽  
Large Scale ◽  
Downstream Processing ◽  
Review Article ◽  
Current Status ◽  
Wall Structure ◽  
Scale Production ◽  
Cell Wall Disruption ◽  
Recent Developments ◽  
Macro Algae

Abstract: Algae (both micro and macro) have gained huge attention in the recent past for their high commercial value products. They are the source of various biomolecules of commercial applications ranging from nutraceuticals to fuels. Phycobiliproteins are one such high value low volume compounds which are mainly obtained from micro and macro algae. In order to tap the bioresource, a significant amount of work has been carried out for large scale production of algal biomass. However, work on downstream processing aspects of phycobiliproteins (PBPs) from algae is scarce, especially in case of macroalgae. There are several difficulties in cell wall disruption of both micro and macro algae because of their cell wall structure and compositions. At the same time, there are several challenges in the purification of phycobiliproteins. The current review article focuses on the recent developments in downstream processing of phycobiliproteins (mainly phycocyanins and phycoerythrins) from micro and macroalgae. The current status, the recent advancements and potential technologies (that are under development) are summarised in this review article besides providing future directions for the present research area.

Numerical Taxonomy in Marketing Analysis: A Review Article

1968 ◽  
Vol 5 (1) ◽  
pp. 83-94 ◽  
Author(s):  
Ronald E. Frank ◽  
Paul E. Green
Keyword(s):  
Numerical Taxonomy ◽  
Review Article ◽  
Numerical Classification ◽  
Classification Problems ◽  
Recent Developments ◽  
Marketing Analysis

Recent developments in numerical taxonomy appear to show applicability for many classification problems in marketing. This review article describes some of the approaches to numerical classification and presents illustrative marketing applications. Current limitations of the procedures are also discussed.

scholarly journals Recent Developments on Five-Component Reactions

Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 1986
Author(s):  
Xiaoming Ma ◽  
Sanjun Zhi ◽  
Wei Zhang
Keyword(s):  
Multicomponent Reactions ◽  
High Efficiency ◽  
Review Article ◽  
Reaction Centers ◽  
Synthetic Approach ◽  
Recent Developments

Multicomponent reactions (MCRs) have inherent advantages in pot, atom, and step economy (PASE). This important green synthetic approach has gained increasing attention due to high efficiency, minimal waste, saving resources, and straightforward procedures. Presented in this review article are the recent development on 5-compoment reactions (5CRs) of the following six types: (I) five different molecules A + B + C + D + E; pseudo-5CRs including (II) 2A + B + C + D, (III) 2A + 2B + C, (IV) 3A + B + C, (V) 3A + 2B, and (VI) 4A + B. 5CRs with more than five-reaction centers are also included.

scholarly journals Recent Developments in Lignin- and Tannin-Based Non-Isocyanate Polyurethane Resins for Wood Adhesives—A Review

2021 ◽  
Vol 11 (9) ◽  
pp. 4242
Author(s):  
Manggar Arum Aristri ◽  
Muhammad Adly Rahandi Lubis ◽  
Sumit Manohar Yadav ◽  
Petar Antov ◽  
Antonios N. Papadopoulos ◽  
...  
Keyword(s):  
Automotive Industry ◽  
Polymeric Materials ◽  
Review Article ◽  
Future Perspectives ◽  
Wood Adhesives ◽  
Adhesion Properties ◽  
Lighting Industry ◽  
Renewable Natural Resources ◽  
Recent Developments ◽  
Strong Adhesion

This review article aims to summarize the potential of using renewable natural resources, such as lignin and tannin, in the preparation of NIPUs for wood adhesives. Polyurethanes (PUs) are extremely versatile polymeric materials, which have been widely used in numerous applications, e.g., packaging, footwear, construction, the automotive industry, the lighting industry, insulation panels, bedding, furniture, metallurgy, sealants, coatings, foams, and wood adhesives. The isocyanate-based PUs exhibit strong adhesion properties, excellent flexibility, and durability, but they lack renewability. Therefore, this study focused on the development of non-isocyanate polyurethane lignin and tannin resins for wood adhesives. PUs are commercially synthesized using polyols and polyisocyanates. Isocyanates are toxic, costly, and not renewable; thus, a search of suitable alternatives in the synthesis of polyurethane resins is needed. The reaction with diamine compounds could result in NIPUs based on lignin and tannin. The research on bio-based components for PU synthesis confirmed that they have good characteristics as an alternative for the petroleum-based adhesives. The advantages of improved strength, low curing temperatures, shorter pressing times, and isocyanate-free properties were demonstrated by lignin- and tannin-based NIPUs. The elimination of isocyanate, associated with environmental and human health hazards, NIPU synthesis, and its properties and applications, including wood adhesives, are reported comprehensively in this paper. The future perspectives of NIPUs’ production and application were also outlined.

scholarly journals Recent developments in voltammetric and amperometric sensors for cysteine detection

RSC Advances ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 5411-5425
Author(s):  
Somayeh Tajik ◽  
Zahra Dourandish ◽  
Peyman Mohammadzadeh Jahani ◽  
Iran Sheikhshoaie ◽  
Hadi Beitollahi ◽  
...  
Keyword(s):  
Review Article ◽  
Amperometric Sensors ◽  
Recent Advances ◽  
Recent Developments ◽  
Amperometric Sensing

This review article aims to provide an overview of the recent advances in the voltammetric and amperometric sensing of cysteine (Cys).

Rewiew of Fracture and Fatigue in Ceramic Matrix Composites

2000 ◽  
Vol 53 (6) ◽  
pp. 147-174 ◽  
Author(s):  
Victor Birman ◽  
Larry W. Byrd
Keyword(s):  
High Temperature ◽  
State Of The Art ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Review Article ◽  
Successful Implementation ◽  
Matrix Composites ◽  
Recent Developments ◽  
Hostile Environments

A review of recent developments and state-of-the-art in research and understanding of damage and fatigue of ceramic matrix composites is presented. Both laminated as well as woven configurations are considered. The work on the effects of high temperature on fracture and fatigue of ceramic matrix composites is emphasized, because these materials are usually designed to operate in hostile environments. Based on a detailed discussion of the mechanisms of failure, the problems that have to be addressed for a successful implementation of ceramic matrix composites in design and practical operational structures are outlined. This review article includes 317 references.

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