Color-tunable luminescent materials via a CB[8]-based supramolecular assembly strategy

2021 ◽  
Author(s):  
Wei-Hang Jin ◽  
Qian Wang ◽  
Meng Chen ◽  
Qi Zhang ◽  
Da-Hui Qu
Keyword(s):  
Small Molecules ◽  
Supramolecular Assembly ◽  
Luminescent Materials ◽  
Fluorescent Properties ◽  
Assembly Strategy ◽  
Color Tunable ◽  
Fluorescent Materials

This research revealed a class of fluorescent materials which have a response to humidity, based on simple small molecules via a CB[8]-based supramolecular assembly strategy, in which the materials’ fluorescent properties can be dynamically controlled.

scholarly journals Thermal Stability and Luminescent Properties of Tri-cellulose Acetate Composites Containing Dy(SSA)3Phen Complex

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Xiangwei Sun ◽  
Feiyue Wu ◽  
Yan Luo ◽  
Mengjun Huang ◽  
Yuntao Li ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Cellulose Acetate ◽  
Ternary Complex ◽  
Fluorescence Spectra ◽  
Luminescent Properties ◽  
Rare Earth Complex ◽  
Luminescent Materials ◽  
Sulfosalicylic Acid ◽  
Composition And Structure ◽  
Fluorescent Materials

Dysprosium (Dy) ternary complex was prepared using 5-sulfosalicylic acid (SSA) as the first ligand and 1,10-phenanthroline (Phen) as the second ligand, denoted as Dy(SSA)3Phen. The complex was blended with tri-cellulose acetate (TCA) via a cosolvent method to obtain polymer luminescent materials. The composition and structure of the rare-earth complex were characterized by means of elemental analysis, infrared (IR) spectra, and thermogravimetric analysis (TGA). The fluorescence spectra displayed this pure Dy(SSA)3Phen complex, and the TCA/Dy(SSA)3Phen composites all emit blue light. The (90/10) composite possesses fine luminescent properties with quantum yield of 33.5% and thermal stability for potential usage as blue fluorescent materials.

scholarly journals Pillar[5]arene-based tunable luminescent materials via supramolecular assembly-induced Förster resonance energy transfer enhancement

2020 ◽  
Vol 4 (3) ◽  
pp. 950-956 ◽  
Author(s):  
Nan Song ◽  
Xin-Yue Lou ◽  
Hao Yu ◽  
Paul S. Weiss ◽  
Ben Zhong Tang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Supramolecular Assembly ◽  
Förster Resonance Energy Transfer ◽  
Luminescent Materials ◽  
Transfer Enhancement ◽  
Colour Changes ◽  
Supramolecular Ensembles ◽  
Förster Resonance

Supramolecular ensembles based on AIE-active pillararenes exhibit strongly enhanced emission accompanied with obvious colour changes upon assembly, where supramolecular assembly-induced enhanced emission and FRET process play key roles.

scholarly journals Effect of end group functionalisation of small molecules featuring the fluorene–thiophene–benzothiadiazole motif as emitters in solution-processed red and orange organic light-emitting diodes

2019 ◽  
Vol 7 (13) ◽  
pp. 3934-3944 ◽  
Author(s):  
Valentin H. K. Fell ◽  
Neil J. Findlay ◽  
Benjamin Breig ◽  
Clarissa Forbes ◽  
Anto R. Inigo ◽  
...  
Keyword(s):  
Small Molecules ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light ◽  
Fluorescent Materials ◽  
End Group

A series of red fluorescent materials (compounds 1–4), which each contain the symmetric fluorene–thiophene–BT–thiophene–fluorene core, is presented along with their performance in solution-processed OLED devices.

Ln3+ post-functionalized metal–organic frameworks for color tunable emission and highly sensitive sensing of toxic anions and small molecules

2016 ◽  
Vol 40 (5) ◽  
pp. 4654-4661 ◽  
Author(s):  
Ji-Na Hao ◽  
Bing Yan
Keyword(s):  
Small Molecules ◽  
White Light ◽  
Light Emission ◽  
Metal Organic Frameworks ◽  
White Light Emission ◽  
Luminescent Sensors ◽  
Highly Sensitive ◽  
Color Tunable ◽  
Metal Organic ◽  
Tunable Emission

Ln3+-functionalized MOFs with tunable color and white-light emission were fabricated and developed as luminescent sensors for anions and small molecules.

Robust luminescent small molecules with aggregation-induced delayed fluorescence for efficient solution-processed OLEDs

2019 ◽  
Vol 7 (2) ◽  
pp. 330-339 ◽  
Author(s):  
Jian Huang ◽  
Zeng Xu ◽  
Zheyi Cai ◽  
Jingjing Guo ◽  
Jiali Guo ◽  
...  
Keyword(s):  
Small Molecules ◽  
Efficient Solution ◽  
Delayed Fluorescence ◽  
Luminescent Materials ◽  
Solution Processed

New luminescent materials with aggregation-induced delayed fluorescence are developed and used to fabricate efficient solution-processed OLEDs with an extremely small efficiency roll-off.

The fabrication of supramolecular assembly with quadruple switchable fluorescence by ionic self-assembly strategy

2020 ◽  
Vol 596 ◽  
pp. 124708
Author(s):  
Pengliang Sui ◽  
Qiuhong Li ◽  
Huajie Yu ◽  
Dongqin Luo ◽  
Zhaoyu Zhang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Supramolecular Assembly ◽  
Assembly Strategy

The Synthesis, Condensation, and Luminescence of Stilbenoid Oligomers with Alkoxysilane End Groups

2001 ◽  
Vol 665 ◽  
Author(s):  
H. Detert ◽  
E. Sugiono
Keyword(s):  
Small Molecules ◽  
Organic Semiconductors ◽  
Three Dimensional ◽  
Synthetic Route ◽  
Heck Reactions ◽  
Transparent Films ◽  
Cross Metathesis ◽  
Fluorescent Materials ◽  
End Groups ◽  
Hydrolysis Of

ABSTRACTA synthetic route to highly luminescent organic semiconductors with curable alkoxysilyl groups is described. Monodisperse oligo(phenylenevinylene)s are rigidly connected to di- and triethoxysilanes via Heck reactions or via cross-metathesis. Hydrolysis of the silicic esters yields silanols condensing to linear and cyclic oligo-OPV-siloxanes or to three-dimensional networks, thus allowing the transformation of small molecules to fluorescent materials with well-defined chromophores. Transparent films are obtained by casting of soluble cyclosiloxanes and from OPV-silanetriols, the latter can be cured to insoluble networks.

Fabrication of Carbon Fiber Embedded Carbon Aerogel via Supramolecular Assembly of Small Molecules in the Precursor Gel

2010 ◽  
Vol 146-147 ◽  
pp. 1917-1920
Author(s):  
Yuan Gang Li ◽  
Hua Jing Li ◽  
Bo Liu ◽  
An Ning Zhou ◽  
Xiao Gang Xi
Keyword(s):  
Carbon Fiber ◽  
Small Molecules ◽  
Surface Area ◽  
Supramolecular Assembly ◽  
Carbon Aerogel ◽  
Simple Addition ◽  
Electrical Conductivities ◽  
Maximum Conductivity

Carbon fiber embedded carbon aerogel (CFECA) was fabricated through simple addition of small organic gelators to the precursor formed by furfural and resorcinol. The surface area of the obtained CFECA decreased compared to that from the precursor without small gelator, but the electrical conductivities of the CFECA increased obviously. The maximum conductivity of the CFECA can reach 2.55 × 105 S/m which is more than three times as that of the referenced common carbon aerogel. The formation of CFECA was characterized by SEM as well as TEM observation.

scholarly journals From Aggregation to Inhibition: N-Amination Converts Amyloidogenic Tau Peptides into Soluble Antagonists of Cellular Seeding

2021 ◽  
Author(s):  
Kamlesh Makwana ◽  
Matthew P. Sarnowski ◽  
Jiyuan Miao ◽  
Yu-Shan Lin ◽  
Juan Del Valle
Keyword(s):  
Small Molecules ◽  
Tau Protein ◽  
Supramolecular Assembly ◽  
Rational Basis ◽  
Protein Assemblies ◽  
Amino Groups ◽  
Minimalist Approach ◽  
Full Complement ◽  
Tau Aggregation

The spread of neurofibrillary tangles resulting from tau protein aggregation is a hallmark of Alzheimer’s and related neurodegenerative diseases. Early oligomerization of tau involves conformational reorganization into parallel b-sheet structures and supramolecular assembly into toxic fibrils. Despite the need for selective inhibitors of tau propagation, b-rich protein assemblies are inherently difficult to target with small molecules. Here, we describe a minimalist approach to mimic the aggregation-prone modules within tau. We carried out a backbone residue scan and show that amide N-amination completely abolishes the tendency of these peptides to self-aggregate, rendering them soluble mimics of ordered b-strands from the tau R2 and R3 domains. Several N-amino peptides (NAPs) inhibit disease-associated tau aggregation and prevent fibril formation <i>in vitro</i>. We further demonstrate that NAPs <b>12</b> and <b>13</b> are effective at blocking the cellular seeding of endogenous tau by interacting with both monomeric or fibrillar forms of extracellular tau. Peptidomimetic <b>12</b> is serum stable, non-toxic to neuronal cells, and selectivity inhibits the aggregation of tau over Ab<sub>­42</sub>. Structural analysis of our lead NAPs shows considerable conformational constraint imposed by the N-amino groups. The enhanced rigidity and full complement of sidechains thus enables NAPs to recognize tau fibrils. The described backbone N-amination approach provides a rational basis for the mimicry of other aggregation-prone peptides that drive pathogenic protein assembly.

scholarly journals From Aggregation to Inhibition: N-Amination Converts Amyloidogenic Tau Peptides into Soluble Antagonists of Cellular Seeding

2021 ◽  
Author(s):  
Kamlesh Makwana ◽  
Matthew P. Sarnowski ◽  
Jiyuan Miao ◽  
Yu-Shan Lin ◽  
Juan Del Valle
Keyword(s):  
Small Molecules ◽  
Tau Protein ◽  
Supramolecular Assembly ◽  
Rational Basis ◽  
Protein Assemblies ◽  
Amino Groups ◽  
Minimalist Approach ◽  
Full Complement ◽  
Tau Aggregation

The spread of neurofibrillary tangles resulting from tau protein aggregation is a hallmark of Alzheimer’s and related neurodegenerative diseases. Early oligomerization of tau involves conformational reorganization into parallel b-sheet structures and supramolecular assembly into toxic fibrils. Despite the need for selective inhibitors of tau propagation, b-rich protein assemblies are inherently difficult to target with small molecules. Here, we describe a minimalist approach to mimic the aggregation-prone modules within tau. We carried out a backbone residue scan and show that amide N-amination completely abolishes the tendency of these peptides to self-aggregate, rendering them soluble mimics of ordered b-strands from the tau R2 and R3 domains. Several N-amino peptides (NAPs) inhibit disease-associated tau aggregation and prevent fibril formation <i>in vitro</i>. We further demonstrate that NAPs <b>12</b> and <b>13</b> are effective at blocking the cellular seeding of endogenous tau by interacting with both monomeric or fibrillar forms of extracellular tau. Peptidomimetic <b>12</b> is serum stable, non-toxic to neuronal cells, and selectivity inhibits the aggregation of tau over Ab<sub>­42</sub>. Structural analysis of our lead NAPs shows considerable conformational constraint imposed by the N-amino groups. The enhanced rigidity and full complement of sidechains thus enables NAPs to recognize tau fibrils. The described backbone N-amination approach provides a rational basis for the mimicry of other aggregation-prone peptides that drive pathogenic protein assembly.

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