Aggregation induced emission – emissive stannoles in the solid state

2020 ◽  
Vol 56 (68) ◽  
pp. 9775-9778 ◽  
Author(s):  
Isabel-Maria Ramirez y Medina ◽  
Markus Rohdenburg ◽  
Enno Lork ◽  
Anne Staubitz
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Crystalline State ◽  
Quantum Yields ◽  
Aggregation Induced Emission ◽  
First Time ◽  
Film State

For the first time, six classical stannoles with photoluminescence quantum yields of up to 11.1% in the crystalline state and 24.4% in the thin film state are presented.

scholarly journals Abnormally aggregation-induced emissions observed from hydrogen- and silyl-substituted siloles

2020 ◽  
Vol 43 (1) ◽  
pp. 125-131
Author(s):  
Zhengang Han ◽  
Kefeng Xie
Keyword(s):  
Hydrogen Atom ◽  
Theoretical Calculations ◽  
Quantum Yields ◽  
Aggregation Induced Emission ◽  
Fluorescence Quantum Yields ◽  
High Fluorescence ◽  
First Time

AbstractSilacyclopentadienes (siloles) are currently of great interest because of their intriguing aggregation-induced emission (AIE) characteristics. In this work, abnormally AIE phenomena were observed from silyl- and hydrogen-substituted siloles respectively. We propose silyl-substituent and hydrogen atom effects to explain this via both experiments and theoretical calculations. It was discovered that trimethylsilyl substituents destroyed the p-interactions with the silole core and resulted in the non-fluorescence. Additionally, 1-chloro-1-H-2,3,4,5-tetraphenylsilole featuring strong fluorescences in both solid and solution states with high fluorescence quantum yields represents a new potential photoelectric material. This work not only reports the silole with strong fluorescences in both solid and solution states for the first time but also contributs to enrich the AIE research of siloles.

Pyrrolo[2,3-b]quinoxaline with 2-(2-aminoethyl)pyridine chain highly selective fluorescent receptor for Zn2+ exhibiting a dual fluorescence and AIEE in crystalline state

CrystEngComm ◽  
2015 ◽  
Vol 17 (3) ◽  
pp. 498-502 ◽  
Author(s):  
Katarzyna Ostrowska ◽  
Łukasz Dudek ◽  
Jarosław Grolik ◽  
Marlena Gryl ◽  
Katarzyna Stadnicka
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Crystalline State ◽  
Intramolecular Charge Transfer ◽  
Zinc Ion ◽  
Dual Fluorescence ◽  
Aggregation Induced Emission ◽  
Emission Enhancement

The article describes the synthesis of selective dual emissive intramolecular charge transfer (ICT) receptor for zinc ion in acetonitrile, exhibiting aggregation induced emission enhancement (AIEE) in solid state.

Sol-gel prepared InTaO4 and its photocatalytic characteristics

2008 ◽  
Vol 23 (5) ◽  
pp. 1364-1370 ◽  
Author(s):  
Hsiang-Chen Chen ◽  
Hung-Chi Chou ◽  
Jeffrey C.S. Wu ◽  
Hsin-Yu Lin
Keyword(s):  
Thin Film ◽  
Aqueous Solution ◽  
Photocatalytic Activity ◽  
Solid State ◽  
Visible Light ◽  
Sol Gel ◽  
Thermal Hydrolysis ◽  
Visible Light Photocatalyst ◽  
First Time ◽  
State Fusion

InTaO4 is an efficient visible-light photocatalyst, which used to be synthesized by solid-state fusion at over 1100 °C. However, irregular morphology and severe agglomeration of particles were acquired due to nonuniform fusion of solid precursors. In this study, InTaO4 was synthesized by two sol-gel routes, the thermal hydrolysis and esterification methods. The precursors were indium (III) nitrate pentahydrate [In(NO3)3] and tantalum(V) butoxide [Ta(OC4H9)5] dissolved in solutions. The InTaO4 powders with a uniform grain size of 17.7 nm were successfully synthesized using the esterification method at a calcination temperature of 950 °C. A uniform InTaO4 thin film nearly 40 nm thick formed on an optical fiber at 1100 °C using the sol prepared by the esterification method. For the first time, InTaO4 was evaluated by the photocatalytic activity of CO2 photo reduction, which was conducted in aqueous solution under visible light irradiation. Cocatalyst NiO was loaded on the surface of InTaO4 to further enhance the methanol yield. The methanol yields of NiO/InTaO4 by esterification method were significantly higher than those by solid-state fusion. The esterification method provided homogeneous mixing of Ta(OC4H9)5 and In(NO3)3, resulting in nano-sized InTaO4 with uniform crystallinity and superior photocatalytic activity.

4,5-Diaminophthalimides: highly efficient solid-state fluorophores and turn-on type fluorescent probes for hydrazine

2019 ◽  
Vol 3 (4) ◽  
pp. 563-570 ◽  
Author(s):  
Masaki Shimizu ◽  
Tomokazu Tamagawa ◽  
Kenta Nishimura
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Methyl Methacrylate ◽  
Fluorescent Probes ◽  
Quantum Yields ◽  
Powder Form ◽  
Poly Methyl Methacrylate ◽  
Turn On ◽  
High Quantum ◽  
Highly Efficient

4,5-Bis(diarylamino)phthalimides in powder form and dispersed in a thin film of poly(methyl methacrylate) fluoresce in the green-to-orange and blue-to-green region, respectively, with high quantum yields.

scholarly journals Structure–property relationships in aromatic thioethers featuring aggregation-induced emission: solid-state structures and theoretical analysis

CrystEngComm ◽  
2019 ◽  
Vol 21 (19) ◽  
pp. 3097-3105 ◽  
Author(s):  
Marco Saccone ◽  
Steffen Riebe ◽  
Jacqueline Stelzer ◽  
Christoph Wölper ◽  
Constantin G. Daniliuc ◽  
...  
Keyword(s):  
Solid State ◽  
Theoretical Analysis ◽  
Quantum Yields ◽  
Structure Property ◽  
Aggregation Induced Emission ◽  
Π Interactions ◽  
Fluorescence Quantum Yields ◽  
Structure Property Relationships ◽  
Solid State Structures

The evolution of the fluorescence quantum yields was correlated with the increase of C–H⋯π and the decrease of π⋯π interactions in the solid state.

Fouling Is the Beginning: Upcycling Biopolymer-Fouled Substrates for Fabricating High-Permeance Thin-Film Composite Polyamide Membranes

2020 ◽  
Author(s):  
Ruobin Dai ◽  
Hongyi Han ◽  
Tianlin Wang ◽  
Jiayi Li ◽  
Chuyang Y. Tang ◽  
...  
Keyword(s):  
Thin Film ◽  
High Pressure ◽  
End Of Life ◽  
Water Purification ◽  
Low Pressure ◽  
Polymeric Membranes ◽  
Membrane Recycling ◽  
Film Composite ◽  
Thin Film Composite ◽  
First Time

Commercial polymeric membranes are generally recognized to have low sustainability as membranes need to be replaced and abandoned after reaching the end of their life. At present, only techniques for downcycling end-of-life high-pressure membranes are available. For the first time, this study paves the way for upcycling fouled/end-of-life low-pressure membranes to fabricate new high-pressure membranes for water purification, forming a closed eco-loop of membrane recycling with significantly improved sustainability.

scholarly journals Solid State NMR Spectroscopy a Valuable Technique for Structural Insights of Advanced Thin Film Materials: A Review

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1494
Author(s):  
Mustapha El Hariri El Nokab ◽  
Khaled O. Sebakhy
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solid State ◽  
Solid State Nmr ◽  
Pulse Sequences ◽  
3D Structure ◽  
Spectroscopic Techniques ◽  
Film Research ◽  
Versatile Technique ◽  
Work Done

Solid-state NMR has proven to be a versatile technique for studying the chemical structure, 3D structure and dynamics of all sorts of chemical compounds. In nanotechnology and particularly in thin films, the study of chemical modification, molecular packing, end chain motion, distance determination and solvent-matrix interactions is essential for controlling the final product properties and applications. Despite its atomic-level research capabilities and recent technical advancements, solid-state NMR is still lacking behind other spectroscopic techniques in the field of thin films due to the underestimation of NMR capabilities, availability, great variety of nuclei and pulse sequences, lack of sensitivity for quadrupole nuclei and time-consuming experiments. This article will comprehensively and critically review the work done by solid-state NMR on different types of thin films and the most advanced NMR strategies, which are beyond conventional, and the hardware design used to overcome the technical issues in thin-film research.

Photonic methods for rapid crystallization of LiMn2O4 cathodes for solid-state thin-film batteries

2021 ◽  
Vol 495 ◽  
pp. 229424
Author(s):  
Xubin Chen ◽  
Jordi Sastre ◽  
Matthias Rumpel ◽  
Andreas Flegler ◽  
Anurag Singhania ◽  
...  
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Rapid Crystallization ◽  
Thin Film Batteries ◽  
Limn2o4 Cathodes

Ensemble Design of Electrode–Electrolyte Interfaces: Toward High-Performance Thin-Film All-Solid-State Li–Metal Batteries

ACS Nano ◽  
2021 ◽  
Vol 15 (3) ◽  
pp. 4561-4575
Author(s):  
Cheng-Fan Xiao ◽  
Jong Heon Kim ◽  
Su-Ho Cho ◽  
Yun Chang Park ◽  
Min Jung Kim ◽  
...  
Keyword(s):  
Thin Film ◽  
Solid State ◽  
High Performance

scholarly journals Nanocrystal-Loaded Micelles for the Enhanced In Vivo Circulation of Docetaxel

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4481
Author(s):  
Meng Cheng ◽  
Qiaoming Liu ◽  
Tiantian Gan ◽  
Yuanying Fang ◽  
Pengfei Yue ◽  
...  
Keyword(s):  
Thin Film ◽  
Retention Time ◽  
Blood Circulation ◽  
Crystalline State ◽  
Circulation System ◽  
Particle Sizes ◽  
High Pressure Homogenization ◽  
Rapid Dissolution ◽  
Efficient Route

Prolonging in vivo circulation has proved to be an efficient route for enhancing the therapeutic effect of rapidly metabolized drugs. In this study, we aimed to construct a nanocrystal-loaded micelles delivery system to enhance the blood circulation of docetaxel (DOC). We employed high-pressure homogenization to prepare docetaxel nanocrystals (DOC(Nc)), and then produced docetaxel nanocrystal-loaded micelles (DOC(Nc)@mPEG-PLA) by a thin-film hydration method. The particle sizes of optimized DOC(Nc), docetaxel micelles (DOC@mPEG-PLA), and DOC(Nc)@mPEG-PLA were 168.4, 36.3, and 72.5 nm, respectively. The crystallinity of docetaxel was decreased after transforming it into nanocrystals, and the crystalline state of docetaxel in micelles was amorphous. The constructed DOC(Nc)@mPEG-PLA showed good stability as its particle size showed no significant change in 7 days. Despite their rapid dissolution, docetaxel nanocrystals exhibited higher bioavailability. The micelles prolonged the retention time of docetaxel in the circulation system of rats, and DOC(Nc)@mPEG-PLA exhibited the highest retention time and bioavailability. These results reveal that constructing nanocrystal-loaded micelles may be a promising way to enhance the in vivo circulation and bioavailability of rapidly metabolized drugs such as docetaxel.

Sign in / Sign up

Export Citation Format

Share Document