Ndsu-research Foundation

North Dakota State University

North Dakota State University Research Foundation

North Dakota State University Development Foundation

Philip R Boudjouk

Johnson Thomas

Shane Jeremy Stafslien

Bret Ja Chisholm

Douglas L Schulz

Thomas E Ready

Mukund P Sibi

Arumugasamy Elangovan

Bhanu P S Chauhan

David Allen Christianson

Jianguo Ji

Xuliang Dai

Steven Duwayne Kloos

Kenneth J Anderson

Justin Hoey

Partha Majumdar

Xiangfa Wu

Larry Pederson

Thomas Johnson

Jeremiah Smith

Seok-Bong Choi

Sijin Han

Beon-Kyu Kim

Michael Perry Remington

Bhanu Chauhan

Iskander Akhatov

Kendric J Nelson

Byung-Hee Han

Kenneth Anderson

Described herein are synthesis schemes and methods for producing silicon based nanostructures and materials, including compositions and methods for synthesis of silicon-based nanowires and composites from three-component and four-component liquid silane/polymer inks. Materials and methods for producing silicon based micro and nanofibers that can be used in a variety of applications including material composites, electronic devices, sensors, photodetectors, batteries, ultracapacitors, and photosensitive substrates, and the like.

Liquid silane-based compositions and methods for producing silicon-based materials

A method of preparing a cyclohexasilane compound from trichlorosilane is provided. The method includes contacting trichlorosilane with a reagent composition to produce a compound containing a tetradecahalocyclohexasilane dianion, such as a tetradecachlorocyclohexasilane dianion. The reagent composition typically includes (a) tertiary polyamine ligand; and (b) a deprotonating reagent, such as a tertiary amine having a pKa of at least about 10.5. Methods of converting the tetradecahalocyclohexasilane dianion-containing compound to cyclohexasilane or a dodecaorganocyclohexasilane are also provided.

Method of producing cyclohexasilane compounds

Heteroatom doped silane compounds, e.g., phosphorus-containing silane compounds, are provided. The application also provides methods of producing the heteroatom doped silane compounds from halogen substituted silanes via reaction with a heteroatom-containing nucleophile.

Method of forming functionalized silanes

Functionalized cross-linked polysiloxanes, such as quaternary ammonium terminated cross-linked polyalkylsiloxanes are described herein. The functionalized cross-linked polysiloxanes may be used in an antifouling composition to prevent biological fouling in aqueous and/or marine environments.

Quaternary ammonium functionalized cross-linked polyalkylsiloxanes with anti-fouling activity

Polyamine cross-linked polysiloxanes, such as functionalized polysiloxane cross-linked with a polyalkylenepolyamine are described herein. The polyamine cross-linked polysiloxanes may be used in an antifouling composition to prevent biological fouling in marine environments.

Antifouling materials containing cationic polysiloxanes

Anti-fouling materials may include one or more of a number of suitable copolymers (e.g., block copolymers, graft copolymers, etc.) which provide biocidal and/or fouling release characteristics. The copolymers may include a polysiloxane backbone with one or more polymers grafted onto the polysiloxane backbone.

Polysiloxanes with anti-fouling activity

Applicants have produced a chromophore and a polymer that are highly sensitive to the presence of various agents, including organophosphates, pesticides, neurotoxins, metal ions, some explosives, and biological toxins. The detection is accomplished by detecting a change in the fluorescence characteristics of the chromophore or polymer when in the presence of the agent to be detected. The chromophore and polymer may be incorporated into sensors of various types, and they are adaptable for potential field use in areas where detection of these types of agents is desired.

Chromophore and polymer capable of detecting the presence of various neurotoxins and method of use

Anti-fouling materials containing cationic polysiloxanes

Neurotoxin sensor based on chromophoric polymers

An anti-fouling material useful to prevent fouling of structure exposed to a water environment includes a copolymer having a carbon and/or silicone backbone with a pendant biocidal group and, optionally, a pendant fouling release group.

Polymeric materials with anti-fouling activity

Polyaminofunctional alkoxy polysiloxanes which exhibit antineoplastic activity are disclosed. Pharmaceutical compositions including an effective amount of a polyaminofunctional alkoxy polysiloxane and/or a pharmaceutically acceptable salt thereof are also disclosed. The application also describes methods of suppressing the growth of neoplastic cells and treating neoplastic conditions.

Antineoplastic polyalkoxyalkylsiloxanes and methods of use thereof

A method of preparing a aminofunctional alkoxy polysiloxane is disclosed. The method includes reacting a polyhydrosiloxane with an alcohol reactant containing an aminoalcohol to form the aminofunctional alkoxy polysiloxane. Linear and cyclic aminofunctional alkoxy polysiloxane are also disclosed. A coating composition comprising an aminofunctional alkoxy polysiloxane is also provided.

Method of preparing aminofunctional alkoxy polysiloxanes

Compounds containing a tetradecachlorocyclohexasilane dianion are prepared by contacting trichlorosilane with a reagent composition comprising a tertiary polyamine. The compound �pedeta.SiH.sub.2 Cl.sup.+1 !.sub.2 �Si.sub.6 Cl.sub.14.sup.-2 ! wherein pedeta is N,N,N',N',N'-pentaethyldiethylenetriamine is prepared by contacting trichlorosilane with pedeta. The compound �Ph.sub.4 P.sup.+1 !.sub.2 �Si.sub.6 Cl.sub.14.sup.-2 ! is prepared by contacting trichlorosilane with a mixture of N,N,N',N'-tetraethylethylenediamine and triphenylphosphonium chloride. The tetradecachlorocyclohexasilane dianion can be chemically reduced to cyclohexasilane, a compound useful in the deposition of amorphous silicon films. The tetradecachlorcyclohexasilane dianion can also be contacted with a Grignard reagent to form a dodecaorganocyclohexasilane.

Compounds containing tetradecachlorocyclohexasilane dianion

A method for preparing a carboxylic acid is provided. The method includes contacting an olefinic compound or a vicinal dihydroxy compound with oxygen in the presence of a protic organic solvent, an inorganic oxide catalyst and a peroxidant such as hydrogen peroxide or an peralkanoic acid. The inorganic oxide catalyst includes an oxide of tungsten, molybdenum, niobium, vanadium, tantalum, titanium, or yttrium.

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Fargo, ND, United States of America

Philip R Boudjouk