10 results about "Iron Chelating Agents" patented technology

The invention discloses a composition for preventing and treating eggplant root rot, and relates to the technical field of biological prevention and treatment. The composition consists of three parts, namely a double-stranded RNA (Ribonucleic Acid) delivery body controlled by a kaolinite nanotube-metal polyphenol network-boric acid ester, a nitric oxide / hydrogen sulfide double-pulse microcapsule and volatile organic compound particles of beta-cyclodextrin cross-linked aerogel, wherein the three parts are matched according to the total mass ratio of 1: (0.8-1.5): (0.8-1.2). Through structural design, time sequence release of non-overlapping peak values is realized, and a prevention and control mode for inhibiting environment enhancement host precise silencing is formed. The deliverer can be selectively disintegrated under the condition of pathogen-induced organic acid, iron chelating agent and hydrogen peroxide, so that the targeted release of the double-stranded RNA is realized; the double-pulse microcapsule respectively releases nitric oxide and hydrogen sulfide in a transplanting stress stage and an early disease stage, and induces host defensive gene expression; the aerogel particles continuously release 2, 3-butanediol and aromatic aldehyde to inhibit germination of pathogenic bacteria and serve as rhizosphere signals to enhance host resistance.

The disclosure provides a composition including a corrosion inhibitor compound and an iron chelating agent. The composition may be used in a method of inhibiting corrosion of a metal surface. The method includes adding the composition to an aqueous system that includes the metal surface. The composition may be applied to the metal surface, for example, using batch treatment techniques.

The invention provides piroctone derivatives as well as a preparation method and application thereof, and belongs to the technical field of medicines. The piroctone derivative is novel in structure and has good solubility, and the preparation method is simple. Experiments prove that compared with a positive control drug DFO, the piroctone derivative provided by the invention has extremely strong iron ion chelating ability, has better anti-inflammatory, antibacterial, fibroblast migration promoting activity and diabetes refractory wound healing promoting activity, and can stabilize HIF-alpha. The piroctone derivative provided by the invention has a very good application prospect in the aspect of being developed into a novel iron chelating agent and an HIF-alpha stabilizer drug which have the effects of resisting inflammation, inhibiting bacteria, promoting wound healing, relieving iron overload and the like.

This invention discloses a method for enhancing the degradation of adsorbed phenanthrene on biochar by sphingosine-containing bacteria. The method includes the following steps: 1) mixing sphingosine-containing bacteria solution with phenanthrene-adsorbed biochar in a culture medium solution; 2) adding an exogenous iron chelating agent and a ferric salt solution to the mixture, and then incubating under natural conditions to degrade and remove the phenanthrene adsorbed on the biochar. This invention uses an exogenous iron chelating agent and ferric salt to enhance the degradation efficiency of microorganisms on adsorbed phenanthrene on biochar, strengthens the regeneration of biochar adsorption performance through microbial degradation, improves the long-term effectiveness of biochar in soil pollution fixation and control, reduces the risk of secondary pollution, and provides technical support for improving soil environmental quality. It has good economic and environmental benefits in practical applications.

This invention relates to the field of biomedical technology and discloses an amphiphilic nicotinamide adenine dinucleotide (NAD) + Couplings, nanomicelles and their applications. Amphiphilic NAD+ + Couplings have the following general structural formula: ; where NAD + R is a hydrophilic group, R is a hydrophobic antioxidant group, and phenylboronic acid derivative is the linking bond; R is selected from free radical scavengers, small molecule organoselenic compounds that mimic the function of glutathione peroxidase 4, iron chelating agents, 7-dehydrocholesterol, royal jelly acid, α-lipoic acid, oleic acid, or derivatives of the above molecules. In this invention, NAD... + Conjugates and their self-assembled nanomicelles possess functions such as promoting DNA repair, maintaining cellular homeostasis, and delaying aging. Simultaneously, nanomicelles can inhibit inflammation and oxidative stress, and can physically encapsulate hydrophobic active drugs, showing broad application prospects in inflammatory diseases, age-related diseases, organ damage, and the prevention and treatment of toxic side effects from chemotherapy drugs.

The invention discloses a walnut polypeptide, the amino acid sequence of the walnut polypeptide is Leu-Leu-Glu-Cys-His-Ser, the walnut polypeptide LLECHS has high iron chelating ability, ultrasonic-assisted chelating can enhance the iron chelating ability of the LLECHS, and the walnut polypeptide LLECHS can be used for preparing an iron chelating agent, does not generate toxic or side effect on the body, and is safe and edible.

The application discloses a method for treating acid in-situ leaching uranium groundwater by chemical and biological synergy, and belongs to the technical field of groundwater treatment. The method is characterized by adding an iron chelating agent to acid in-situ leaching uranium groundwater, chelating high-concentration ferrous ions to form stable iron chelates; then based on the dual effects of hydroxyl radical chemical oxidation of the continuous single-electron transfer pathway of the ferrous chelates and biological oxidation of acidophilic iron-oxidizing bacteria in the groundwater, chelates of ferric ions are rapidly formed and hydrolyzed to form ferric hydroxyl sulfate precipitates, thereby removing more than 90% of the dissolved iron and a small part of the sulfate in the acid in-situ leaching uranium groundwater; subsequently, a small amount of lime is used for neutralization, so that the discharge of pollutants such as uranium, manganese and nickel in the groundwater can meet the standards. The method can reduce the consumption of the lime used for neutralization and the generation of metal waste by more than 50% in the treatment of acid in-situ leaching groundwater, and is efficient, stable, economical and practical.

The present invention provides preservative compositions that can be used as preservatives in various compositions, including personal care formulations, and methods for increasing the efficacy of preservatives in final-use formulations. [Solution] (i) A preservative comprising an acid compound, a phenol compound, a sulfite, an iron chelating agent, an aromatic alcohol, a quaternary ammonium compound, a pyrone compound, a urea compound, an imidazole compound, an isothiazolinone compound, or a combination of two or more preservatives; and (ii) a preservative composition comprising a polyglycerol ester present in an amount that sufficiently increases the efficacy of the preservative compared to the preservative alone, and the amount of increase is greater than the additive effect of the biocidal activity of the preservative and the polyglycerol ester used alone, wherein the weight ratio of the polyglycerol ester to the preservative is in the range of 0.0001 to 2.0.

The application provides N-doped carbon quantum dots and a preparation method and application thereof. The N-doped carbon quantum dots are prepared by using ginsenoside, ethylenediamine and water as raw materials and by adopting a hydrothermal synthesis method. The N-doped carbon quantum dots have high biological safety, are mainly composed of carbon elements, are not doped with metal elements and have high biocompatibility. Compared with traditional iron chelating agents, the N-doped carbon quantum dots have strong ROS scavenging properties and have stronger therapeutic effects. The N-doped carbon quantum dots have good physical stability, and the N-doped carbon quantum dots in artificial cerebrospinal fluid do not change in physical properties obviously within 28 days. The preparation method of the N-doped carbon quantum dots has simple synthesis technology, low synthesis cost, does not produce reaction waste and is conducive to clinical transformation.

The present invention addresses the problem of providing a novel method for regenerating nerves using a drug. As a means for solving the problem, the present invention provides a nerve regeneration agent containing an iron chelating agent, and a nerve regeneration method that includes a step in which an iron chelating agent is applied ex vivo to tissue requiring nerve regeneration.