ChemInform Abstract: Water-Soluble Perylenediimides: Design Concepts and Biological Applications

ChemInform ◽  
2016 ◽  
Vol 47 (20) ◽  
Author(s):  
Mengmeng Sun ◽  
Klaus Muellen ◽  
Meizhen Yin
Keyword(s):  
Water Soluble ◽  
Biological Applications ◽  
Design Concepts

scholarly journals Water-soluble perylenediimides: design concepts and biological applications

2016 ◽  
Vol 45 (6) ◽  
pp. 1513-1528 ◽  
Author(s):  
Mengmeng Sun ◽  
Klaus Müllen ◽  
Meizhen Yin
Keyword(s):  
Fluorescence Intensity ◽  
Water Soluble ◽  
Biological Applications ◽  
Design Concepts ◽  
High Fluorescence Intensity ◽  
High Fluorescence ◽  
Biological Field

Water-soluble perylenediimides (PDIs) with high fluorescence intensity, photostability and biocompatibility have been successfully prepared and applied in the biological field.

scholarly journals Upconversion nanoparticles based on rare-earth elements

2019 ◽  
Vol 220 ◽  
pp. 03033
Author(s):  
Dmitrii Zharkov ◽  
Andrey Leontyev ◽  
Artemii Smelev ◽  
Victor Nikiforov ◽  
Vladimir Lobkov ◽  
...  
Keyword(s):  
Experimental Data ◽  
Aqueous Solution ◽  
Rare Earth ◽  
Laser Radiation ◽  
Rare Earth Elements ◽  
Hydrothermal Method ◽  
Water Soluble ◽  
Upconversion Nanoparticles ◽  
Biological Applications ◽  
Intense Luminescence

Using the hydrothermal method, we synthesized water soluble YVO4: Yb, Er nanoparticles with a size less than 10 nm. Nanoparticles exhibit intense luminescence in the green region due to Er3+ ions when excited by laser radiation at a wavelength of 980 nm as a result of the up-conversion process. Bright and stable luminescence also persists in an aqueous solution of nanoparticles. Based on experimental data, it can be argued that the objects obtained are promising in biological applications, as well as up-conversion phosphors.

scholarly journals New Ionic Carbosilane Dendrons Possessing Fluorinated Tails at Different Locations on the Skeleton

Molecules ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 807 ◽  
Author(s):  
Gabriel Mencia ◽  
Tania Lozano-Cruz ◽  
Mercedes Valiente ◽  
Javier de la Mata ◽  
Jesús Cano ◽  
...  
Keyword(s):  
Self Assembly ◽  
Focal Point ◽  
Water Soluble ◽  
Biological Applications ◽  
Resonance Imaging ◽  
19F Mri ◽  
19F Magnetic Resonance Imaging ◽  
Or Gene ◽  
Supramolecular Aggregation ◽  
Dendritic Structures

The fluorination of dendritic structures has attracted special attention in terms of self-assembly processes and biological applications. The presence of fluorine increases the hydrophobicity of the molecule, resulting in a better interaction with biological membranes and viability. In addition, the development of 19F magnetic resonance imaging (19F-MRI) has greatly increased interest in the design of new fluorinated structures with specific properties. Here, we present the synthesis of new water-soluble fluorinated carbosilane dendrons containing fluorinated chains in different positions on the skeleton, focal point or surface, and their preliminary supramolecular aggregation studies. These new dendritic systems could be considered as potential systems to be employed in drug delivery or gene therapy and monitored by 19F-MRI.

Biological applications of water-soluble polypeptides with ordered secondary structures

2020 ◽  
Vol 8 (31) ◽  
pp. 6530-6547 ◽  
Author(s):  
Chenglong Ge ◽  
Huan Ye ◽  
Fan Wu ◽  
Junliang Zhu ◽  
Ziyuan Song ◽  
...  
Keyword(s):  
Ring Opening ◽  
Secondary Structures ◽  
Ring Opening Polymerization ◽  
Water Soluble ◽  
Biological Applications ◽  
Recent Advances

Herein, recent advances in the synthesis of the water-soluble polypeptides with ordered secondary structures via ring-opening polymerization of NCA/NTA and their biological applications are described.

Water-Soluble C-Scorpionate Complexes - Catalytic and Biological Applications

2016 ◽  
Vol 2016 (15-16) ◽  
pp. 2236-2252 ◽  
Author(s):  
Luísa M. D. R. S. Martins ◽  
Armando J. L. Pombeiro
Keyword(s):  
Water Soluble ◽  
Biological Applications ◽  
Soluble C ◽  
Water Soluble C

scholarly journals Temperature-Responsive Polymers for Biological Applications

2003 ◽  
Vol 785 ◽  
Author(s):  
M. Rackaitis ◽  
E. Manias
Keyword(s):  
Temperature Response ◽  
Water Soluble ◽  
Solution Temperature ◽  
Biological Applications ◽  
Polymer Grafting ◽  
Grafted Polymers ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Responsive Polymers ◽  
Cloud Points

ABSTRACTWater soluble polymers with tunable lower critical solution temperature (LCST) are of increasing interest for biological applications such as cell patterning, smart drug release, DNA sequencing etc. The present study addresses control of the polymer temperature response in water by varying chemical composition of the monomer. In order to achieve this a series of polymers were designed and synthesized based on an ethyleneoxide/ethylene monomer (EO/EE). Polymers were synthesized using polycondensation reactions of difunctional m-EO and n-EE oligomers. The cloud point follows linearly the balance of hydrophobic/hydrophilic interaction and can be tailored in the range of 7 – 70°C by varying the m/n composition and polymer type. Polymer grafting onto the silicon surface exhibits similar solubility behaviour. Adhesion energy measurements show that grafted polymers have solubility cloud points at the temperatures that are close to the ones of the bulk polymer solutions.

Design of Water-Soluble Quantum Dots with Novel Surface Ligands for Biological Applications

2003 ◽  
Vol 789 ◽  
Author(s):  
H. Tetsuo Uyeda ◽  
Igor L. Medintz ◽  
Hedi Mattoussi
Keyword(s):  
Aqueous Media ◽  
Extended Period ◽  
Water Soluble ◽  
Coupling Agents ◽  
Biological Applications ◽  
Dihydrolipoic Acid ◽  
Aqueous Dispersions ◽  
Surface Capping ◽  
Capping Ligands ◽  
New Generation

ABSTRACTWe have designed a series of organic oligo- and polyethylene glycol (PEG) based surface capping ligands that allow for QD manipulation in aqueous media. We utilized readily available thioctic acid and various oligo- and polyethylene glycols in simple esterification schemes, followed by reduction of the dithiolane to produce multi-gram quantities of capping substrates. Cap exchange of the native trioctyl-phosphine and -phosphine oxide based ligands with the PEG-terminated dithiol-alkyl cap readily resulted in aqueous dispersions of QDs that were homogeneous and stable in various pH ranges over an extended period of time. Mixed surface capping strategies utilizing ratios of dihydrolipoic acid to the pegylated dihydrolipoic acid were also prepared. We anticipate that such systems should allow one to covalently attach amine containing biomolecules to nanoparticle systems bearing carboxylates, employing known coupling agents, such as (dimethylamino) propyl-3-ethyl-carbodiimide (EDC). This design and conjugation strategy may facilitate the development of a new generation of QD-bioconjugates, which can be directly utilized in bio-related applications such as sensing and cellular imaging.

Fabrication of Fluorescent Cellular Probes: Hybrid Dendrimer/Gold Nanoclusters

2007 ◽  
Vol 1007 ◽  
Author(s):  
Chang Zhong ◽  
Yuping Bao ◽  
Dung M. Vu ◽  
R. Brian Dyer ◽  
Jennifer S. Martinez
Keyword(s):  
Noble Metal ◽  
Gold Nanoclusters ◽  
Water Soluble ◽  
High Yield ◽  
Reaction Yield ◽  
Biological Applications ◽  
Metal Nanoclusters ◽  
Proof Of Concept ◽  
Size Dependent ◽  
Metal Atoms

ABSTRACTFluorescent metal nanoclusters, which consist of collections of small numbers of noble metal atoms, are of great interest in photochemistry and photophysics due to their strong size-dependent emission. Historically their generation was confined to gaseous and solid phases; however, recently a unique organic/inorganic hybrid materials approach was developed that utilizes dendrimers as templates to protect nanoclusters from solution based fluorescence quenching. These hybrid dendrimer/gold nanoclusters are water-soluble and highly fluorescent. Yet there are several intrinsic deficiencies in their synthetic method: first, NaBH4, a toxic chemical, was used as reducing agent in the reaction; and second, the reaction yield was low due to the concurrent formation of large, non-emissive, gold particles. Here we report a particle-free method to produce dendrimer-encapsulated gold nanoclusters in high-yield. Proof of concept is demonstrated using OH-terminated poly(amidoamine) dendrimer and Au(PX3)3Cl (X = Ph, Me), but the approach can also be extended to the combination of other dendrimers and organic noble metal salts. Our approach yields fluorescent clusters with homogeneous size distribution. These clusters can be transferred to aqueous solution and used directly for biological applications.

The effects of the increasing number of the same chromophore on photosensitization of water-soluble cyclen-based europium complexes with potential for biological applications

RSC Advances ◽  
2015 ◽  
Vol 5 (18) ◽  
pp. 13347-13356 ◽  
Author(s):  
Zhenhao Liang ◽  
Chi-Fai Chan ◽  
Yurong Liu ◽  
Wing-Tak Wong ◽  
Chi-Sing Lee ◽  
...  
Keyword(s):  
Water Soluble ◽  
Biological Applications ◽  
Europium Complexes ◽  
Full Characterization

Synthesis, full characterization and in vitro studies of five water-soluble cyclen-based europium complexes with various numbers of the same antenna.

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