Neue Materialien

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Treffer

Ref.-Nr.: 0104-5931-BC

Bildgebung und Mikroskopie
Neue Materialien

"As a result of the evermore-enhanced super resolution microscopic techniques that allow observation of biological processes up to the molecular level in living cells the demand for fluorescent dyes owning the capability of specific binding to molecules like proteins as label for visualization aspects is increased.

A new class of rhodamine derivates that meets all requirements for the use in such biological environment could be developed in the group of Prof. Stefan Hell, Max Planck Institute ...

Ref.-Nr.: 0705-5158-BC

Neue Materialien

For sieving and separation purposes porous materials with adjustable sizes and shapes of the pores as well as tunable mechanical properties are required. The existing materials such as sintered materials, open-cell foams or cemented aggregates can be made porous but they are either fragile or can collapse for large deformation. Therefore, chemically inert and damage resistant porous materials with adjustable permeability as well as mechanical and geometrical properties that can sustain large deformation ...

Ref.-Nr.: 0042-5881-LC

Prozesse und Methoden (inkl. Screening) : Chemische
Neue Materialien

A family of 16-electron binary Ni(0)-stilbene complexes Ni(Rstb)3 as a new class of air-stable Ni(0) (pre)catalysts was developed.

Ref.-Nr.: 0707-5419-LI

Neue Materialien

Anti-IgG secondary antibodies are major tools for the detection or immobilization of primary antibodies in approaches such as western blotting, ELISA, Co-IP and immunofluorescence. Polyclonal anti-IgG secondary antibodies are produced in animals, such as mouse, rabbit, rat, and goat and are directed against the IgG classes of these animals. Thus, the generation of such secondary antibodies requires the keeping and use of a large number of animals, which is not only costly but also a major ethical ...

Ref.-Nr.: 0104-5929-BC

Neue Materialien

Since 2000 bioinspired fibrillar dry adhesives have been studied intensively culminating in commercial products already available on the market. Currently known fibrillar adhesives are fully wetted by oils, leading to significantly decreased adhesion and friction performance. Therefore, a high demand exists for reversible dry fibrillar adhesives that can repel oil-like liquids and adhere strongly to surfaces wetted by them.

To meet the aforementioned challenges, an extraordinary fibrillar ...

Ref.-Nr.: 0707-5236-BC

Bildgebung und Mikroskopie
Neue Materialien

Fluorescent dyes are widely used as indispensable markers in biology, optical microscopy, and analytical chemistry. The availability and the proper choice of the dye is a key factor to success of the entire labelling and imaging procedure. Due to superior brightness and photostability, synthetic dyes often represent an attractive alternative to fluorescent proteins.

Among the multitude of fluorophores reported so far, only rhodamines, carbopyronines, and silicon-rhodamines bearing a carboxyl ...

Ref.-Nr.: 0042-5177-LC-WA

Prozesse und Methoden (inkl. Screening) : Chemische
Forschungs-Reagenzien : Andere
Neue Materialien

We offer novel phosphenium ligands and corresponding metal complexes (both air stable) that are claimed as substances by granted EP and US patents. The ligands can be prepared in multigram scale by simple direct condensation. The corresponding gold complexes are suitable as homogeneous catalysts in organic synthesis (such as cycloisomerization) that can be easily precipitated and recycled due to their salt properties.

Ref-Nr.: 0104-4458-BC

Bildgebung und Mikroskopie
Neue Materialien

Semiconductor nanowires are of vital importance for many applications, such as flexible electronics, photonics, sensors, and energy harvesting and storage devices. As standard fabrication procedure, vapor-liquid-solid (VLS) growth employs metal catalyst particles (such as gold) as seeds for growth of nanowires. The seeds are deposited on a solid substrate, melted by heating and then exposed to a gas atmosphere containing source materials of the semiconductor. When the metal droplets are supersaturated, ...

Ref.-Nr.: 0903-4524-LC

Neue Materialien

We offer a new simple and low cost technology to fabricate graphene-encapsulated metal or metal compound nanoparticles. The resulting hybrid nanoparticles are protected by granted substance claims in US, CN, TW and EP (DE, FR, GB, BE). Currently the patent protected graphene coated nano particles are discussed as high performance electrode materials in the lithium ion battery business (for example Samsung's "Graphene Balls").

Ref.-Nr.: 0042-4938-LC-WA

Prozesse und Methoden (inkl. Screening) : Chemische
Forschungs-Reagenzien : Andere
Neue Materialien

We offer a new family of cationic ligands, namely N-alkyl/aryl pyridiniophosphines. The ligands can be synthesized through a short, scalable, and highly modular route.

Evaluation of their electronic properties evidenced weak σ-donor and quite strong π-acceptor character when used as ancillary ligands.

Ref.-Nr.: 0903-5658-LC; 0903-5696-LC; 0903-5692-LC

Analytik
Bildgebung und Mikroskopie
Neue Materialien

A group of scientists at the MPI for Polymer Research in Mainz developed nano-graphene structures that can be used as a new class of fluorophores for super-resolution microscopy (SMLM and STED).

They perform like hybrids of organic dyes and QDs: they have excellent environment-independent blinking properties, emit high photon numbers, display high photo-stability, possess low toxicity, have a molecular size below 2 nm, and have narrow excitation and emission spectra.

These nanographene ...

Ref.-Nr.: 1402-5292-BC

Neue Materialien

For the evaluation of crystallisation processes, process parameters like temperature and concentration can be easily measured. However, to measure the crystal size distribution continuously is a challenging task.
Different methods relaying on back scattering or reflection of monochromatic light can be applied that yield chord-length distributions, which often deviate from the actual crystal or particle size distribution. For analysing the true crystal dimensions and, additionally, the crystal ...

Ref.-Nr.: 0042-4764-LC-WA

Prozesse und Methoden (inkl. Screening) : Chemische
Neue Materialien

An easy process for the facile and permanent immobilization of organocatalysts on nylon textiles was developed.
All of the prepared textile-immobilized organocatalysts (a Lewis basic, a Brønsted acidic, and a chiral organocatalyst) display excellent stability, activity and recyclability for various organic transformations. Very good enantioselectivity (>95:5 enantiomeric ratio) can be maintained for more than 250 cycles of asymmetric catalysis. The flexible construction of fabrics allows ...

Ref.-Nr.: 0707-5297-BC

Bildgebung und Mikroskopie
Neue Materialien

Fluorescent dyes are widely used as indispensable markers in biology, optical microscopy, and analytical chemistry. In particular, the sensitive and stable imaging of cellular components depends on the favourable combination of chemical, biological and physical factors. The availability and proper choice of fluorescent dyes is a key factor to success in the entire labelling and imaging procedure. Due to their superior brightness and photostability, synthetic dyes represent an attractive alternative ...

Ref.-Nr.: 0041-4518-WT

Neue Materialien

Mesoporous materials present a large surface-to-volume ratio providing sites for catalysis, molecular separation, adsorption or chemical sensing. Some of the classical mesoporous materials employed include silica, alumina, zirconia, zeolites, and other diverse oxides such Ti or Co, and they are synthetized by routes as self-assembly, sol-gel, spray drying and some variations of these methods known in the state of the art. Additionally, some elements of the platinum group such as Pd, Ru, and their ...

Ref.-Nr.: 0042-5063-LC

Prozesse und Methoden (inkl. Screening) : Chemische
Forschungs-Reagenzien : Andere
Neue Materialien

The ability of hypervalent iodine compounds to act as electrophilic group-transfer reagents has been extensively exploited during the last several years in a variety of synthetically useful transformations
like cyanations and alkynylations. Now it was found, that novel imidazolium sulfuranes, which are isolobal to I(III) species and also depict the key threecenter four-electron bond motive, can be used as an alternative platform for the development of new electrophilic group-transfer reagents.

Imidazolium ...

Ref.-Nr.: 0903-4616-LC

Neue Materialien

Novel gas exchange membranes based on superamphiphobic coatings applied on metal meshes were created and tested in different applications, like gas scrubbing and blood oxygenation.
By using the novel membrans drawbacks of traditional membranes - like insufficient wetting, plugging and depositions chemical incompatibility and temperature instability - can be avoided.

Ref.-Nr.: 1201-4746-LC

Prozesse und Methoden (inkl. Screening) : Chemische
Neue Materialien

We offer the new composite nanomaterial for sodium ion battery cathodes. These carbon-coated nanosized Na3V2(PO4)3 particles embedded in a highly effective mixed conducting porous carbon matrix can be easily prepared by means of facile soft-chemistry based preparation method with a post heat treatment procedure. The resulting cathodes can be charged and discharged in 6 s with high current density of 22 A/g, deliver the specific capacity of 44 mAh/g and ...