Abstract: Disclosed is a novel family of macrocyclic compounds, coined calixurenes, which comprises linear and cyclic oligomers composed of alternating moieties of an aromatic unit and a ureatic unit, linked to one another via a bridging moiety. The disclosed calixurenes feature multiple heteroatom-containing groups, and can be designed so as to feature other functionalities, and can thus be used in a variety of applications. Further disclosed are processes of preparing the calixurenes, articles containing same and uses thereof.

Abstract: A rotaxane consisting of a cucurbituril and an uncharged guest molecule, having low or null affinity therebetween is provided as well as processes for providing the same. Various uses as energy converters (“frictionless” molecular motors), biochips and biosensors using the same are also provided.

Abstract: Disclosed is a novel family of macrocyclic compounds, coined calixurenes, which comprises linear and cyclic oligomers composed of alternating moieties of an aromatic unit and a ureatic unit, linked to one another via a bridging moiety. The disclosed calixurenes feature multiple heteroatom-containing groups, and can be designed so as to feature other functionalities, and can thus be used in a variety of applications. Further disclosed are processes of preparing the calixurenes, articles containing same and uses thereof.

Abstract: A composition of matter which comprises a non-gaseous nitrogen containing compound; and a spore of a micro-organism. A method of determining a source of a material the material being an explosive or a substance used in the preparation of the explosive, the material comprises a spore of a micro-organism uniquely associated with the material, the method comprises inducing the spore to transform into a vegetative micro-organism and identifying the micro-organism as being associated with the material, thereby determining the source of the material.

Abstract: Derivatized cucurbiturils and cucurbituril assemblies formed thereby are disclosed. Also disclosed are binding pairs of the disclosed cucurbituril assemblies and polyamine structures, which are highly advantageous over the presently known affinity pairs and therefore can be efficiently utilized in a myriad of applications.

Abstract: Self-assembled, closed and hollow chemical multimer structures having a dodecahedral morphology, composed of chemical monomers having a structurally symmetric core which possess a 5-fold rotational symmetry, are provided. Also provided are methods of creating such chemical monomers, methods of creating such chemical multimer structures and compositions comprising these chemical multimer structures. Also provided are uses of these chemical multimer structures in applications such as drug delivery, imaging, immunization, formation of plastic crystals and nanoparticle matrices and other medical and material science applications.

Abstract: A rotaxane consisting of a cucurbituril and an uncharged guest molecule, having low or null affinity therebetween is provided as well as processes for providing the same. Various uses as energy converters (“frictionless” molecular motors), biochips and biosensors using the same are also provided.

Abstract: A method of implementation of a P-system in membrane computing comprising: placing three mutually immiscible liquids into a container, such that a first of said liquids provides a barrier between the second and third liquids; providing an initial substrate to at least one of said second and third liquids; and applying a transport rule for said first liquid to allow transport of substrate between said second and said third liquid.

Abstract: Derivatized cucurbiturils can be efficiently prepared and utilized for forming cucurbituril assemblies. These cucurbituril assemblies, in turn, can form affinity binding pairs with polyamines structures that are designed capable of binding to these assemblies. The resulting affinity pairs are highly advantageous over the presently known affinity pairs and therefore can be efficiently utilized in a myriad of application. Thus, according to one aspect of the present invention there is provided a cucurbituril comprising at least one functional group covalently attached hereto, whereby the at least one functional group being for forming an assembly of at least two cucurbiturils. According to further features in preferred embodiments of the invention described below, the cucurbituril is selected from the group consisting of CB[5], CB[6], CB[7], CB[8] and CB[n], wherein n is an integer that equals to or is lower than 20.

Abstract: Methods of treating medical conditions associated with inflammation employing compounds capable of inhibiting an activity and/or a formation of an oxidant associated with the inflammation, pharmaceutical composition and inhalation devices containing such compounds are provided. Further provided are methods of identifying drug candidates for treating inflammation-associated medical conditions by inhibiting an activity and/or a formation of an oxidant associated with the inflammation and methods of diagnosing such medical conditions.

Abstract: A compound having a general formula (II) wherein R1 is saturated or unsaturated alkyl, amino-alcohol, diamino, cycloalkyl, and C(?O)(CH2)nNR?R?, (CH2)nCHOHCH2NR?R?, wherein n is an integer, RQ, RT, R?, and R? are each independently a hydrogen, halogen, hydroxyl, saturated, unsaturated, aliphatic, or branched alkyl, substituted or unsubstituted (CH2)m-(hetero)aryl, and sulfonylamide; q and r are each an integer independently selected from 1-4; and pharmaceutically acceptable salts thereof, and the new therapeutic uses thereof and similar compounds as defibrillating, and/or anti-fibrillatory, and/or anti-arrhythmic and/or anti-ischemic drugs.

Abstract: The present invention provides a method of detecting a peroxide-based explosive in a sample suspected of consisting of or comprising such explosive, which method comprises dissolving said sample in a suitable organic solvent, contacting the solution with an aqueous solution of a strong acid capable of decomposing said explosive to release hydrogen peroxide, and contacting the resulting mixture with a peroxidase enzyme. The invention also provides a kit for use in the method of the invention.

Abstract: A platinum complex is described to include a platinum(IV) metal center so positioned and oriented in the complex so as to complex in cis orientations with two hydride groups and with an alkyl group.

Abstract: Methods are provided for deuteration, tritiation, dedeuteration or detritiation of a carbonyl compound. A catalytic antibody that catalyzes an aldol addition reaction is contacted with a carbonyl compound to exchange at least one hydrogen atom of the carbonyl compound with a deterium or tritium atom of an isotopically enriched water molecule, or to exchange at least one deuterium or tritium atom of the carbonyl compound with a hydrogen atom. The aldol addition reaction may be between an aliphatic ketone donor and an aldehyde acceptor. Isotopically enriched water molecules include deuterium hydrogen oxide, dideuterium oxide, tritium hydrogen oxide, ditritium oxide and deuterium tritium oxide. The catalytic antibody may be that secreted by hybridoma 38C2 (ATCC HB 12005) or 33F12 (ATCC HB 12004).

Abstract: Hapten and antigen designed for eliciting catalytic antibodies effective in inhibiting the ethylene production pathway in plants by deactivating a precursor thereof either by decomposition or derivatization. Catalytic antibodies effective in inhibiting the ethylene production pathway in plants by deactivating a precursor thereof. Genes encoding for such catalytic antibodies and plants and cells expressing these genes and producing the catalytic antibodies for controlling the ripening of fruits and vegetables, as well as for controlling senescence of plant tissue.

Abstract: The invention relates to novel titanocene derivatives possessing chemotherapeutic activity and method for their preparation. These compounds possess two cyclopentadiene rings linked to titanium as a central atom and bound covalently to two phenoxy groups which possess a substituent R selected from the group consisting of COOCH.sub.3, COOC.sub.2 H.sub.5, H, COOCH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2 OCH.sub.3 and are free from amino, nitro, chloride and fluoride groups. The novel compounds represent a compromise between the main properties for an antitumor agent, i.e., electrophilicity and stability, being water soluble. Cytotoxicity measurements of these compounds showed significant growth inhibition properties, expressed in terms of IC.sub.50 [M] values.

Abstract: Novel discogens based on tricycloquinazoline derivatives and methods for their preparation are described. One method for their preparation is to nitrate veratraldehyde and after reducing the resulting nitrate to dimethoxy anthranil to obtain its trimerization thus producing a trisubstituted tricycloquinazoline. Another method is to start with dichlorotoluene and after its nitration to oxidize the nitrate into dichloronitrodiacetoxytoluene, its hydrolysis into benzaldehyde followed by a partial reduction to anthranil and finally by the trimerization of the anthranil to obtain the hexachlorotricycloquinazoline. The novel compounds are useful as fluorescent indicators for high performance oxygen sensors, organic conductors, liquid crystals and polymeric liquid crystals.

Abstract: There is provided a novel process for the production of the epipodophyllotoxin glycosides, Etoposide and Teniposide. There are further provided certain novel 4'-demethylepipodophyllotoxin derivatives of the following formula ##STR1## where W is hydrogen or 2,3-di-O-acetyl-4,6,O-ethylidene-D-glucopyran-1-yl. These intermediates are easily transformed into Etoposide and Teniposide and into further derivatives of this series.

Abstract: There is provided a process for the selective anomeric deacetylation of sugar derivatives, which may be substituted by substituents such as acetoxy, chloracetoxy, alkoxy, azido, etc., by means of tin compounds R.sub.3 SnOR' or R.sub.2 SnO where R is lower alkyl resulting either directly in the desired anomeric compound or in an intermediate which is converted to the desired compound by silica or by acid hydrolysis.