Water-soluble CMY primary color electrochromic polymers: Design, Synthesis and Full Color Control

2022 ◽  
Author(s):  
Dacheng Dai ◽  
Mi Ouyang ◽  
Lina Zhang ◽  
Haichang Fu ◽  
Bowen Tao ◽  
...  
Keyword(s):  
Environmental Protection ◽  
Water Soluble ◽  
Next Generation ◽  
Design Synthesis ◽  
Primary Color ◽  
Electrochromic Polymers ◽  
Full Color ◽  
Color Control ◽  
Color Rendering ◽  
Electrochromic Polymer

The next generation of electrochromic materials are required to be rich in color rendering, excellent processability and environmental protection. Soluble electrochromic polymer (ECP) can fulfill these requirements. However, a more...

scholarly journals Recent Progress in the Synthesis and Characterization of Diarylethene-based MOFs

2014 ◽  
Vol 70 (a1) ◽  
pp. C1223-C1223
Author(s):  
Jason Benedict ◽  
Ian Walton ◽  
Dan Patel ◽  
Jordan Cox
Keyword(s):  
Chemical Properties ◽  
Building Blocks ◽  
Synthesis And Characterization ◽  
Next Generation ◽  
Design Synthesis ◽  
Thermally Induced ◽  
Potential Applications ◽  
External Stimuli ◽  
Physical And Chemical

Metal-organic Frameworks (MOFs) remain an extremely active area of research given the wide variety of potential applications and the enormous diversity of structures that can be created from their constituent building blocks. While MOFs are typically employed as passive materials, next-generation materials will exhibit structural and/or electronic changes in response to applied external stimuli including light, charge, and pH. Herein we present recent results in which advanced photochromic diarylethenes are combined with MOFs through covalent and non-covalent methods to create photo-responsive permanently porous crystalline materials. This presentation will describe the design, synthesis, and characterization of next-generation photo-switchable diarylethene based ligands which are subsequently used to photo-responsive MOFs. These UBMOF crystals are, by design, isostructural with previously reported non-photoresponsive frameworks which enables a systematic comparison of their physical and chemical properties. While the photoswitching of the isolated ligand in solution is fully reversible, the cycloreversion reaction is suppressed in the UBMOF single crystalline phase. Spectroscopic evidence for thermally induced cycloreversion will be presented, as well as a detailed analysis addressing the limits of X-ray diffraction techniques applied to these systems.

scholarly journals Considerable Improvement of Ursolic Acid Water Solubility by Its Encapsulation in Dendrimer Nanoparticles: Design, Synthesis and Physicochemical Characterization

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2196 ◽  
Author(s):  
Silvana Alfei ◽  
Anna Maria Schito ◽  
Guendalina Zuccari
Keyword(s):  
Ursolic Acid ◽  
Water Solubility ◽  
Drug Loading ◽  
Physicochemical Characterization ◽  
Systemic Toxicity ◽  
Water Soluble ◽  
Design Synthesis ◽  
Pentacyclic Triterpenoid

Ursolic acid (UA) is a pentacyclic triterpenoid found in many medicinal plants and aromas endowed with numerous in vitro pharmacological activities, including antibacterial effects. Unfortunately, UA is poorly administered in vivo, due to its water insolubility, low bioavailability, and residual systemic toxicity, thus making urgent the development of water-soluble UA formulations. Dendrimers are nonpareil macromolecules possessing highly controlled size, shape, and architecture. In dendrimers with cationic surface, the contemporary presence of inner cavities and of hydrophilic peripheral functions, allows to encapsulate hydrophobic non-water-soluble drugs as UA, to enhance their water-solubility and stability, and to promote their protracted release, thus decreasing their systemic toxicity. In this paper, aiming at developing a new UA-based antibacterial agent administrable in vivo, we reported the physical entrapment of UA in a biodegradable not cytotoxic cationic dendrimer (G4K). UA-loaded dendrimer nanoparticles (UA-G4K) were obtained, which showed a drug loading (DL%) much higher than those previously reported, a protracted release profile governed by diffusion mechanisms, and no cytotoxicity. Also, UA-G4K was characterized by principal components analysis (PCA)-processed FTIR spectroscopy, by NMR and elemental analyses, and by dynamic light scattering experiments (DLS). The water solubility of UA-G4K was found to be 1868-fold times higher than that of pristine UA, thus making its clinical application feasible.

Design, synthesis, and partial characterization of water-soluble .beta.-sheets stabilized by a dibenzofuran-based amino acid

1993 ◽  
Vol 115 (9) ◽  
pp. 3790-3791 ◽  
Author(s):  
Humberto Diaz ◽  
Kwok Yin Tsang ◽  
Danny Choo ◽  
Jose R. Espina ◽  
Jeffery W. Kelly
Keyword(s):  
Amino Acid ◽  
Beta Sheets ◽  
Water Soluble ◽  
Partial Characterization ◽  
Design Synthesis

scholarly journals Next-Generation Water-Soluble Homogeneous Catalysts for Conversion of Glycerol to Lactic Acid

2018 ◽  
Vol 37 (9) ◽  
pp. 1400-1409 ◽  
Author(s):  
Matthew Finn ◽  
J. August Ridenour ◽  
Jacob Heltzel ◽  
Christopher Cahill ◽  
Adelina Voutchkova-Kostal
Keyword(s):  
Lactic Acid ◽  
Water Soluble ◽  
Next Generation ◽  
Homogeneous Catalysts

Green multi-resonance induced thermally activated delayed fluorescence emitters containing phenoxazine units with highly efficient electroluminescence

2021 ◽  
Author(s):  
Jia-Jun Hu ◽  
Xu-Feng Luo ◽  
Meng-Xi Mao ◽  
Hua-Xiu Ni ◽  
Xiao Liang ◽  
...  
Keyword(s):  
Delayed Fluorescence ◽  
Color Purity ◽  
Next Generation ◽  
Thermally Activated Delayed Fluorescence ◽  
Color Display ◽  
Thermally Activated ◽  
Highly Efficient ◽  
Full Color ◽  
High Color Purity

Highly efficient multi-resonance thermally activated delayed fluorescence (MR-TADF) emitters with narrowband emissions based on B (boron)/ N (nitrogen) framework are crucial for next-generation full-color display with high color purity. This...

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