A catalyst system for olefin polymerization contains a main catalyst and a cocatalyst. The cocatalyst contains a twelve-membered ring compound represented by formula (M). The catalyst system is suitable for preparing polypropylene products having high stereoregularity and low ash, and can regulate the melt index of the products within a wide range by adjusting the amount of hydrogenation. It is also suitable for copolymerization systems to improve the copolymerization yield. ##STR00001##

A calixarene compound represented by formula (1) below is provided. The calixarene compound contains, per molecule, at least one —CH.sub.2OH group or phenolic hydroxy group and at least one carbon-carbon unsaturated bond. R.sup.1's are a structural moiety (A), which has a —CH.sub.2OH group; a structural moiety (B), which has a carbon-carbon unsaturated bond; a structural moiety (C), which has a —CH.sub.2OH group and a carbon-carbon unsaturated bond; a monovalent organic group (D), which is different from (A), (B), and (C); or a hydrogen atom (E). R.sup.2's are (A), (B), (C), (D), or (E) provided that not all R.sup.2's are (E). R.sup.3's are one of a hydrogen atom, an aliphatic hydrocarbon group, and an aryl group. n is 2 to 10. * is a point of attachment to an aromatic ring. A curable composition including the calixarene compound is provided. A cured product of the curable composition is provided.

Formulations are described, containing silibinin or other active ingredients incorporated in lipid nanoparticle systems of the SLN and NLC type, and based on calixarenes, possibly mucoadhesive, or in micellar and nanoparticle systems based on amphiphilic inulin copolymers for use in the treatment of neurodegenerative ocular diseases. The versatility of the calixarene compound is also described, capable of charging and releasing active ingredients characterized by low water solubility, easy chemical and enzymatic degradation, low bioavailability, either of natural origin or not, to be used in the treatment of ocular diseases.

The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.

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The present invention relates to a newly developed resorcinarene-based amphipathic compound, a method for producing the same, and a method for extracting, solubilizing, stabilizing, crystallizing, or analyzing a membrane protein by using the same. In addition, compared to a conventional compound, the compound can efficiently extract, from a cell membrane, membrane proteins having a greater variety of structures and characteristics, and can stably store such membrane proteins for a long time in an aqueous solution. Therefore, the compound can be used to analyze the functions and structures of such membrane proteins. Analysis of the structures and functions of membrane proteins, being closely related to the development of new drugs, is one of the fields of greatest interest in biology and chemistry today.

The present invention provides cationic pillar[n]arenes, e.g., positively charged poly-ammonium, poly-phosphonium and poly-imidazolium pillar[5-6]arene derivatives, capable of inhibiting or preventing biofilm formation, and facilitating existing biofilm decomposition; as well as compositions thereof and methods of use.

Disclosed herein are embodiments of halogenated nanohoop compounds and assemblies thereof that can be used to for a variety of biological and chemical applications. The halogenated nanohoop compounds described herein exhibit non-covalent interactions that promote their ability to stack and form column-like assemblies having uniform pore size and that do not exhibit structural defects typically associated with other column-like structures, such as carbon nanotubes. Assemblies described herein also are capable of non-covalent interactions with other assemblies and thus can be used to form networks of the assemblies described herein.

The present invention relates to a newly developed resorcinarene-based amphipathic compound, a method for producing the same, and a method for extracting, solubilizing, stabilizing, crystallizing, or analyzing a membrane protein by using the same. In addition, compared to a conventional compound, the compound can efficiently extract, from a cell membrane, membrane proteins having a greater variety of structures and characteristics, and can stably store such membrane proteins for a long time in an aqueous solution. Therefore, the compound can be used to analyze the functions and structures of such membrane proteins. Analysis of the structures and functions of membrane proteins, being closely related to the development of new drugs, is one of the fields of greatest interest in biology and chemistry today.

A carbon nanobelt represented by formula (1) was synthesized by chemical synthesis:

wherein each Ar is identical or different and represents an aromatic hydrocarbon ring; each R.sup.1 is identical or different and represents hydrogen, alkyl, aryl, or alkoxy; and n represents an integer of 0 or more.

Provided is a compound represented by Formula (1A) below wherein the symbols are as defined in the description:

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Also disclosed are a composition containing at least one of the compound and a formed article of the compound.