Eastman-kodak Company

Johnson & Johnson Clinical Diagnostics, Inc.

Christopher P Moore

Trevor J Wear

Karen Leeming

Paul D Beer

Alistair J Goulden

Danielle Marie Wettling

Gregory N Batts

Nicholas C Fletcher

Derek A Thomason

Henry J Gysling

David T Clarke

Llewellyn J Leyshon

Steven A VanSlyke

Michael Ridgway

Malcolm D Purbrick

Stephen J Edwards

Jean C Robert

Kevin J Parr

Thierry Janet

James F Stoddart

John W Wheeler

Ian O Sutherland

Angela King

George Stewart

Sylvie Lebrat

Robert G Blue

Dominique Armspach

Photographic element with dye-forming coupler and stabilizing compound

Biocide material and method of preparation of said material

Method of preparing a biocidal material

A method for inhibiting the growth of microorganisms in an aqueous medium comprises contacting the aqueous medium with a permeable body comprising material which interacts with the microorganisms. Such interaction involves a change in the chemical structure of the material resulting from the action of one or more of the microorganisms. The permeable body may take the form of a permeable bag containing plant fibers and may be used for the treatment of photoprocessor wash waters.

Method for inhibiting the growth of microorganisms in an aqueous medium

A method of inhibiting microbial growth in wash water contained in a photoprocessing system. The method comprises placing in the wash water an apparatus comprising a pump with an attached permeable container and an inlet and outlet means for the wash water. The permeable container includes a biocide immobilized on a support. The wash water as it is pumped through the pump passes through the container and makes contact with the immobilized biocide in order to inhibit microbial growth in the wash water. The apparatus is self-contained and may be placed in a reservoir of an aqueous medium to be treated.

Apparatus and method for inhibiting microbial growth in an aqueous medium

A method of inhibiting microbial growth in an aqueous medium comprising contacting the aqueous medium with a biocidal material comprising a biocide having a log P value of at least 1.5 immobilized by hydrophobic exclusion on a support having a hydrophobic surface, characterized in that contact is made in the presence of a potentiating agent for the biocide.

Method of inhibiting microbial growth in an aqueous medium

An ion-sensitive calix(4)arene compound having the formula A.sup.2 +B.sup.2 - wherein A represents a cation capable of forming a receptor-substrate complex with an anion, and B represents sulfate, nitrate or borate, characterized in that the cation is an anion receptor represented by the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group wherein substituents are selected from alkyl C(O)NH--, aryl C(O)NH--, alkoxy, aryloxy, alkoxycarbonyl, aryloxycarbonyl, alkylsulfonamido, arylsulfonamido, alkylcarbonyl, alkoxycarbonyl, aryloxycarbonyl, cyano and nitro;

Ion-sensitive compounds

A biocidal material comprises a biocide immobilized in a porous inorganic polymer network such as a sol-gel matrix. The polymer may be coated on an inorganic support. The material can be used for inhibiting microbial growth in an aqueous medium, e.g., the wash solution of a photoprocessing system. The material can be housed in a flow-through container.

Material method and apparatus for inhibiting microbial growth in an

An optical chemical sensor comprises an optical waveguide having a light transmitting substrate and a coating of an environmentally sensitive compound in a Zr/Si sol-gel glass binder on the substrate. The sensor is suitable for use in high pH environments. The environmentally sensitive compound may be a chemically sensitive dye e.g. a pH indicator dye.

Optical chemical sensor

An ion-sensitive calix(4)arene compound having the formula A.sup.2 +B.sup.2- wherein A represents a cation capable of forming a receptor-substrate complex with an anion, and B represents sulfate, nitrate or borate, characterized in that the cation is an anion receptor represented by the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group wherein substituents are selected from alkyl C(O)NH--, aryl C(O)NH--, alkoxy, aryloxy, alkoxycarbonyl, aryloxycarbonyl, alkylsulfonamido, arylsulfonamido, alkylcarbonyl, alkoxycarbonyl, aryloxycarbonyl, cyano and nitro;

##STR1## The invention provides compounds represented by formula (I), wherein Y is --(CH.sub.2).sub.2 [O(CH.sub.2).sub.2 ].sub.n -- in which n is an integer from 1 to 6; Z is --N.dbd.N--Ar in which Ar is a substituted or unsubstituted aryl group; Q is hydrogen or an alkyl group having from 1 to 4 carbon atoms; each R independently is hydrogen or a substituent free of acidic protons; and X is R or Z. The compounds are ion-sensitive dyes suitable for use in optical ion sensors.

Ion-sensitive dyes

An ion sensitive compound has the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, an alkylamido group, an arylamido group, an alkylsulfonamido group, an arylsulfonamido group or a nitro group;

Ion-sensitive compounds are provided comprising a quaternary polypyridinium receptor designed to bind anionic species by the formation of a receptor-substrate complex. The receptor comprises one or more quaternary 2,2'-bipyridyl moieties. The compounds are of use in applications requiring anion detection or removal.

The invention comprises a novel composition containing, and an organic electroluminescent device employing, an aluminum chelate of the formula:

Growing community of inventors

Harrow, United Kingdom

Christopher P Moore