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Integrated production of microbial biopolymer (PHA) with other value-added bioproducts: an innovative approach for sustainable production
The application of nitroarenes in catalyst‐free photo‐driven reactions
In this review, the development of catalyst-free photo-induced reactions involving photoexcited nitroarenes is summarized and a brief outline of future directions in this field is provided.
Abstract
Nitroarenes are usually excited to form photoexcited species in light-induced reactions due to their unique properties, leading to the development of numerous related catalyst-free photo-induced reactions encompassing diverse reaction types and key intermediates. This review aims to summarize the progress in catalyst-free photo-induced reactions involving photoexcited nitroarenes and offers a brief overview of future directions in this field.
30 years of semiconductor nanowire research: A Personal Journey
Decoding Skd3 (Human CLPB): a Mitochondrial Protein Disaggregase Critical for Human Health
Abstract
Protein folding is important for all life. Indeed, protein misfolding can result in catastrophic protein aggregation and toxicity. The pathways involved in reversing protein aggregation within human mitochondria had long been unknown. We recently discovered that Skd3 (human CLPB) is a potent mitochondrial protein disaggregase, which is regulated by the rhomboid protease PARL, and maintains the solubility of many important mitochondrial proteins. Skd3 variants underlie several debilitating human diseases, including 3-methylglutaconic aciduria, severe congenital neutropenia, and premature ovarian insufficiency. Here, we describe advances in understanding Skd3 function, mechanism, and structure and place these discoveries in the context of physiology and disease.
Effects of exogenous strigolactone on the cadmium accumulation in Galinsoga parviflora Cav.
Assessing the Greenness and Environmental Friendliness of Analytical Methods: Modern Approaches and Recent Computational Programs
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Review of Gas-Chromatographic Measurement Methodologies for Atmospheric Halogenated Greenhouse Gases
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Amino‐Acid Side‐Chain Nanoarchitectonics for Tuning the Chiroptical Properties and Supramolecular Structure of Pentameric Oligothiophenes
Self-assembled Proteophenes. Oligothiophenes with distinct amino acid side-chain functionalities along the conjugated backbone displayed distinct chiroptical and structural properties in acidic or alkaline solutions. The distinct photophysical characteristics, as well as the supramolecular structures of the assemblies were highly influenced by the chemical nature of the amino acid, as well as the positioning of distinct amino acid moieties along the thiophene backbone.
Abstract
Oligothiophenes with specific photophysical properties and molecular organization are of great interest, since this class of materials are used in organic electronics and bioelectronics, as well as biosensing. Herein, 8 different pentameric oligothiophenes, denoted proteophenes, with different amino acid substitution patterns at distinct positions along the thiophene backbone were investigated. Spectroscopic and microscopic studies of the ligands revealed the formation of optically active self-assembled materials under acidic or basic conditions. The distinct photophysical characteristics, including induced circular dichroism, as well as the supramolecular structures of the assemblies deduced from light scattering and transmission electron microscopy, were highly influenced by the positioning of distinct amino acid moieties along the thiophene backbone. Proteophenes functionalized with only glutamate residues or these functionalities in combination with hydrophobic valine moieties formed fibrillar structures with excellent chiroptical properties under acidic conditions. In addition, the amino acid functionality at the β-position of distinct thiophene moieties influenced the induced circular dichroism pattern observed from the proteophenes. Overall, the obtained results demonstrate how changes in the position of various amino acid functionalities, as well as the chemical nature of the amino acid side chain functionality greatly affect the optical properties as well as the architecture of the self-assembled materials.
D‐A* Co‐polymerization Realizing Chiral Thermally Activated Delayed Fluorescent Polymers for Highly Efficient Circularly Polarized Polymer Light‐emitting Diodes
A pair of chiral TADF-active polymer emitters were designed and synthesized by the spiro donor-chiral acceptor strategy, and intense CPEL signals were detected from the corresponding CP-PLED devices.
Abstract
Circularly polarized electroluminescence (CPEL) from polymers with thermally activated delayed fluorescence (TADF) properties has been rapidly developed in recent years. So far, the designing strategies of such chiral TADF-active polymers are still limited. In this work, a new strategy of D−A* co-polymerization was proposed and two chiral polymers R-pSACODP and S-pSACODP were synthesized. The circularly polarized polymer light-emitting diode (CP-PLED) devices fabricated with R-pSACODP and S-pSACODP achieved comparable performances with maximum external quantum efficiencies (EQEs) of 12.0 % and 11.7 % at the wavelength of 581 nm, respectively. Moreover, mirror-imaged CPEL signals were also detected with electroluminescence dissymmetry factors (g EL) of −1.1×10−3 and +1.3×10−3 from the corresponding CP-PLED devices, respectively. The results in this work effectively extend the designing strategies for the achievement of CPEL from chiral TADF-active polymers.