35 results about "Dye binding" patented technology

An expression cassette having a fiber specific promoter driving expression of a gene encoding an elastic and plastic protein based polymer having the repetitive amino acid sequence Gly-Val-Gly-Val-Pro (SEQ. ID. NO. 2), a terminator, and selectable marker genes for transforming plant cells and a transgenic cotton plant having fiber cells stably transformed with the gene encoding the protein based polymer wherein the cotton fiber cells exhibit improved water absorption, temperature transition properties, fiber strength, elasticity, and dye binding capacity.

Protein scaffolds from tobacco mosaic virus coat protein modified to incorporate polyhistidine can bind to a metal or a dye while having improved self-assembly characteristics. The scaffold can take the form of tubes or disks, and can further be formed into dual plasmonic ring resonators. Such self-assembled structures provide useful optical properties.

The invention relates to a method for measuring lysine in corn through a near infrared spectrum. The method comprises the following steps of: testing a spectrum, rejecting an abnormal value, establishing an analysis model and the like. By the method, the lysine content can be rapidly and nondestructively measured without pretreatment, and the method is particularly suitable for measuring the lysine content of low-generation materials in the process of breeding high-quality protein corn; compared with lysine content measured results in a dye binding method (DBL), a ninhydrin development process and an amino acid analyzer method, the lysine content measured result in the method verifies the feasibility of a method for measuring the corn through the near infrared spectrum, particularly lysine of the low-generation materials in the process of breeding the high-quality protein corn; moreover, the method is rapid, reliable and practical, and has certain reference value for selecting a method for measuring the lysine content in the process of breeding the high-quality protein corn.

A detergent composition comprising a copolymer and at least one component selected from surface active agents and fabric softening compounds, the copolymer comprising at least one dye binding monomer and at least one anionic or nonionic monomer, with the proviso that the copolymer is not poly(1-vinylpyrrolidone-co-acrylic acid). Also a method of mitigating dye transfer in a detergent composition in the presence of typically encountered soils is provided. A dye binding copolymer comprising at least one anionic monomer selected from acrylic acid, methacrylic acid, vinyl sulphonic acid, itaconic acid, octanoic acid, hexanoic, hydroxy acetic acid or mixtures thereof or at least one nonionic monomer selected from polyethylene glycols and at least one dye binding monomer selected from vinyl imidazole, methyl vinyl imidazole, vinyl pyridine-N-oxide, vinyl pyrrolidone and mixtures thereof is also disclosed.

The subject invention provides methods, assays, and products for detecting small molecules in a sample, in particular, in both clinical and field settings. The method for detecting a small-molecule target, preferably, a synthetic cathinone in a sample comprises contacting the sample with an aptamer-based sensor selective for the small-molecule target, and detecting the small-molecule target in the sample. Specifically, the method utilizes an aptamer-based sensor comprising a dye binding to a three-way junction binding domain of an aptamer. Binding of small-molecule target to the aptamer displaces the dye, generating a spectroscopic signal that can be used for detection of the small-molecule target and quantitative measurement of the target concentration.

The invention relates to an asymmetric metal complex black dye and a preparation method thereof. Specifically, the asymmetric metal complex black dye has a structure represented by the following formula (1). The dye combines the advantages of acid dyes and reactive dyes, and is suitable for printing dyeing of fiber materials containing hydroxyl or amino groups. The dyeing process is simple, stableand reliable, and the dyeing effect is excellent. The material dyed by the dye has good fastness to wet and fastness to daylight.

The invention discloses a near-infrared fluorescent probe compound taking an N-pyridine oxide derivative as a recognition group as well as preparation and application of the near-infrared fluorescent probe compound. The preparation method specifically comprises the following steps: firstly, oxidizing a pyridine heterocyclic compound into an N-pyridine-2-formaldehyde oxide derivative, and taking the N-pyridine-2-formaldehyde oxide derivative as a recognition group; finally, enabling rhodamine B hydrazide to react with the N-pyridine oxide derivative in an organic solvent, so as to obtain the N-pyridine oxide-rhodamine B near-infrared fluorescent probe. The N-pyridine oxide-rhodamine B type near-infrared fluorescent probe can detect divalent palladium ions with high sensitivity and high selectivity, can realize colorimetric and fluorescent dual-mode detection of the divalent palladium ions in the environment, and can also be used for rapid detection of the divalent palladium ions in cells. Besides, the applied N-pyridine oxide derivative is a new recognition group which is easily available in initial raw material and easy to prepare, and has a wide application prospect in the aspect of detecting other heavy metal ions after being combined with other common dyes.

A compound in which a xanthene colorant is bonded to an optical absorber (Dye) with optical absorption in the wavelength range of 350 to 700 nm.

A single stranded nucleic acid biosensor for 2′, 3′-cGAMP is provided. The single stranded nucleic acid may include a 2′, 3′-cGAMP-binding riboswitch domain comprising a transducer stem and a dye-binding aptamer domain that is operably connected to the transducer stem. A 2′, 3′-cGAMP-binding riboswitch domain. The dye-binding aptamer domain can be a Spinach2 aptamer. The 2′, 3′-cGAMP biosensor may further include a signaling chromophore specifically bound to the Spinach2 aptamer domain, where the sensor is configured to fluorescently activate the signaling chromophore upon specific binding of 2′, 3′-cGAMP to the 2′, 3′-cGAMP-binding riboswitch domain. Also provided are methods in which the subject 2′, 3′-cGAMP biosensors find use including methods for determining the level of cGAS activity in a sample or a cell. Nucleic acid constructs and host cells including the same are also provided.

The present invention relates to a method for real-time monitoring and/or quantification of newly-synthesized complementary deoxyribonucleic acid (cDNA) during a reverse transcription reaction of an ribonucleic acid (RNA) template in a sample, the method using a fluorogenic dye binding to RNA:cDNA hybrids. The present invention also relates to the use of this method as well as to kits employing the fluorogenic dye.

Products and methods for ring dyeing a yarn and/or surface dyeing a fabric are provided. The product and method discloses the application of a dye binding composition including a urethane based polymer to a textile yarn, fabric, or garment. The dye binding composition is engineered so that the composition is positioned on or near the surface of the yarn, producing a ring dyed material. The dye binding composition can be colored with selective dyes that bind to the composition but generally do not have affinity for textile substrate. Garments created using this fabric can be abraded to remove surface polymer and color in different locations of the garment, creating an antiqued appearing garment. Dyes of different classifications can be used to produce novel performance and coloration effects in textile materials and garments. This process has been demonstrated on yarn (for a denim-like appearance), knitted and woven fabrics, and garments.

The invention discloses an enzyme activity determination composition of M-MLV reverse transcriptase and a determination method. A fluorescent quantitative method is adopted for determining the activity of the M-MLV reverse transcriptase, and isothermal extension reaction is carried out under the condition of 37-42 DEG C. The invention also discloses a method for determining the enzyme activity of the M-MLV reverse transcriptase. According to the method, the SYBR dye is combined with the cDNA double strand to emit fluorescence, the Oligreen dye is combined with the single strand to emit fluorescence, a reaction system for determining the enzyme activity is designed, the principle that the fluorescent dye is combined with the DNA to emit fluorescence is utilized, the enzyme activity determination method of the M-MLV reverse transcriptase is designed, and compared with a traditional determination method, the time consumption is short, the operation is simple, and the repeatability is good.