Tamarind seed is an underutilized byproduct of the tamarind pulp industry. Only a small portion of the seed, in the form of tamarind kernel powder (TKP), is used as a sizing material in the textile, paper, and jute industries. Though many applications of this seed are possible, there have been hardly any other uses for it including using it as an additive in food formulations. The excellent gelling cum adhesive characteristics of the decorticated seed powder can lead to several applications in food and pharmaceutical industries which are evident by the number of research papers as well as patent applications. This article thus focuses on the possibilities of using the seed in several food and non-food industries with particular reference to physical and engineering properties, hydration behavior, rheological properties, functional and nutritional characteristics, and the processing of the tamarind seed for wider applications.

Tamarind seed: properties, processing and utilization.

PROBLEM TO BE SOLVED: To provide an ophthalmic composition for soft contact lens containing a nonionic surfactant with high hydrophilic property having an HLB of 11 or more, the ophthalmic composition for soft contact lens allowing reduction in the increase of surface friction of soft contact lens and hardly causing deformation to soft contact lens.SOLUTION: An ophthalmic composition for soft contact lens which contains (A) a nonionic surfactant having an HLB of 11 or more and (B) a polyoxyethylene castor oil with an ethylene oxide having an average addition molar number of 2 to 20 can reduce the increase of surface friction of soft contact lens caused by contact of the ophthalmic composition with soft contact lens and suppress deformation of soft contact lens.

Ophthalmic composition for soft contact lenses

The purpose of the present invention is to provide an ophthalmic composition for a contact lens which enables inhibition of the adhesion of bacteria to a contact lens. The ophthalmic composition for a contact lens is prepared by combination use of (A) a polyoxyethylene castor oil and (B) a terpenoid.

Ophthalmic composition for contact lens

PROBLEM TO BE SOLVED: To provide a phosphorylcholine group-containing polymer which can be applied widely as a biocompatible material and to provide a method for producing a biocompatible polymer which satisfies the most appropriate properties required for uses. SOLUTION: The method for producing the phosphorylcholine group- containing polymer is specific in adding a phosphorylcholine group to a polymer by reacting a compound containing an aldehyde form obtained by oxidative decomposition of glycelophosphorylcholine, with a polymer having an amino group.

Phosphorylcholine group-containing polymer and method for producing the same

An object of the present invention is to overcome the problem of nonspecific adsorption of a labeled antibody on the detection site and to provide an immunochromatography method by which the false positive signal can be suppressed, and wherein the detection sensitivity is high and the highly reliable measurement can be performed. The present invention provides an immunochromatography method, which comprises developing an analyte and a labeling substance modified with a first antibody against the analyte on a porous carrier in a state where the analyte and the labeling substance is mixed, and capturing the analyte and the labeling substance at the reaction site on the porous carrier having a second antibody against the analyte, so as to detect the analyte; wherein a fragmented antibody is used as the first antibody and/or the second antibody; an analyte is detected via amplification using an amplification solution which contains a compound containing silver and a reducing agent for silver ions; and the ratio of the non-specifically adsorbed labeling substance in the pre-amplification detection site and the non-detection site of the porous carrier is between 0.4 to 2.5 in a system where the density of the non-specifically adsorbed labeling substance is 10 6 /mm2 or less.

Immunochromatography method using fragmented antibody

PURPOSE:To suppress the adsorption of protein to antibody combination solid phase, antigen combination solid phase, or solid phase and then improve analysis accuracy without affecting a measurement system by a specific protein adsorption inhibitor. CONSTITUTION:A protein adsorption inhibitor containing 2- methacryloyloxyethylphosphorylcholine(MPC) polymer and/or copolymer of MPC-containing constituent is used. The applicable range is the analysis method of living thing related substance where enzyme reaction or immunity or the antigen antibody reaction of immunity globulin are generally utilized. The MPC polymer and/or MPC copolymer using the protein adsorption inhibitor are the MPC individual polymer or a copolymer with other vinyl monomers and the NIPC content within the constituent of the polymer A is preferable 1-100mol.% and an average molar weight is preferable 1000-1,000,000. The inhibitor can be used by adding itself to a solvent medium where the polymer A can be dissolved, for example, phosphoric acid buffer solution, acetic buffer solution, and carbon buffer solution.

Protein adsorption inhibitor

PURPOSE: To obtain a solution improving contact lens wearing feel, excellent in contamination-proofness, hydrophilicity and safety, thus useful as artificial lacrima, etc., containing each specific polymer component, inorganic chloride, buffering agent and chelating agent at specified proportions. CONSTITUTION: This solution for contact lens contains (A) 0.01-5(w/v)% of a polymer component obtained by polymerizing a (meth)acrylate of the formula [R 1 is H or methyl: R 2 is (CH 2 CHR 4 ) n or (CH 2 CHR 4 O)-CH 2 CHR 4 (R 4 is H or methyl; (n) is 1-8); R 3 is an 1-8C alkyl or hydroxyalkyl] or copolymerizing this (meth)acrylate with a copolymerizable vinyl monomer, (B) 0.01-1.5(w/v)% of an inorganic chloride selected from sodium chloride, potassium chloride, magnesium chloride and mixtures thereof, (C) 0.01-1.5(w/v)% of a buffering agent such as hydrochloric acid and (D) 0-1.0(w/v)% of a chelating agent such as citric acid. COPYRIGHT: (C)1995,JPO

Solution for contact lenses

PROBLEM TO BE SOLVED: To obtain a formulation for an oculist capable of staying an active component on the cornea, etc., by mixing a specific polymer with a medicinal component. SOLUTION: This formulation contains (A) a polymer having a phosphorylcholine-resemble group expressed by formula I R to R are each H or a 1-4C alkyl; (m) is 2-4} as a side chain, preferably a homopolymer of phosphorylcholine-resemble group containing monomer of formula II [R is H or methyl; R is -(BO)n -B- B is a 2-12C alkylene; (n) is 0-10}], a copolymer of the monomer or a copolymer of an other monomer copolymerizable with the monomer and (B) a medicine component, preferably an antihistaminic agent, etc., concretely glycyrrhizinic acid dipotassium, etc.

Formulation for oculist

PROBLEM TO BE SOLVED: To provide such a hydrophobic thermoplastic resin composition containing a carbon nanotube (CNT) as is improved in the dispersibility of a CNT and does not need a solvent at the time of kneading a CNT into a resin SOLUTION: The hydrophobic thermoplastic resin composition contains (A) a CNT having an average diameter of 60-200 nm and an average aspect ratio of 5-250, (B) a hydrophobic thermoplastic resin and (C) one or more surfactants selected from a group consisting of four kinds of compounds of N,N-di(polyoxyethylene)-N-oleylamine, N-oleyl-N-polyoxyethylene-N',N'-di(polyoxyethylene)propylene diamine, glycerin monostearate and pentaerythritol distearate COPYRIGHT: (C)2009,JPO&INPIT

Hydrophobic thermoplastic resin composition

PROBLEM TO BE SOLVED: To provide a solution for uniformly and efficiently dispersing carbon nanotubes in an organic solvent without aggregation SOLUTION: The solution for carbon nanotube dispersion comprises (A) one or more specific nonionic surfactants selected from formula (1), the formula (2): R 2 -O-(AO)n-H, and the formula (3): R 3 -(C=O)-O-(AO)p-H, and (B) a solvent consisting mainly of one or more organic solvents selected from the formula (4): HO-(AO)q-H, the formula (5): R 4 -O-(AO)r-H, the formula (6): R 5 -O-(AO)s-(C=O)-CH 3 , 3-10C aliphatic alcohols and 2-10C aliphatic polyols COPYRIGHT: (C)2008,JPO&INPIT

Shinji Nakada

Papers

Protein adsorption inhibitor

Solution for contact lenses

Formulation for oculist

Hydrophobic thermoplastic resin composition

Solution for carbon nanotube dispersion and carbon nanotube dispersion liquid