9 results about "Urea nitrogen" patented technology

1. Name of the designed product: packing bag (containing phosphorus urea nitrogen). 2. Use of the designed product: used for packing bag of fertilizer. 3. Design points of the designed product: combination of shape and pattern. 4. Picture or photo showing the design points: front view. 5. The designed product is a thin product, and other views are omitted.

One embodiment of a blood urea nitrogen (BUN) sensor measures urea nitrogen in a biological sample by measuring a differential voltage signal based on first and second voltage signals, the first and second voltage signals each representing a detected amount of carbon dioxide. The first signal represents a detected amount of carbon dioxide resulting from an enzymatic reaction of a biological sample contacting a sensor surface having urease immobilized thereon. The second voltage signal represents a detected amount of background carbon dioxide in the biological sample. The differential voltage signal is indicative of the amount of urea nitrogen in the biological sample, which can be determined by an appropriate correlation. Other embodiments of a BUN sensor and a method of sensing a BUN are also provided, as are other aspects.

The invention provides a pharmaceutical composition for preventing, treating or relieving uric acid metabolic disorder and application, the pharmaceutical composition comprises a xanthine oxidase inhibitor and a URAT1 inhibitor, and the xanthine oxidase inhibitor is selected from teguxostat or febuxostat; the URAT1 inhibitor is selected from the group consisting of dotenod, Velnod, Lesinurad, Ruzinurad, SAP-001, ABP-671, SHR4640 and the like. The pharmaceutical composition provided by the invention can effectively reduce the concentration of uric acid in serum of a patient with hyperuricemia, so that the hyperuricemia is effectively prevented, treated or relieved. Compared with a single drug and the sum thereof, the combined drug composition can effectively inhibit serum uric acid, serum creatinine and urea nitrogen.

The application belongs to the technical field of urea nitrogen detection, and particularly relates to an integrated microfluidic chip device and method for detecting urea nitrogen; wherein a cover plate is bonded to a main plate, and the main plate is bonded to a base plate; the main plate is provided with a light path channel, a micro flow channel, a reaction chamber, a sample chamber, a control chamber and a groove; a photoelectric detector is fixed in the groove, an LED light source, a lens, a spectroscope and a reflecting mirror are fixed in the light path channel, the sample chamber and the reaction chamber are communicated through the micro flow channel, and the sample chamber and the outside are communicated through the micro flow channel; the cover plate is etched with an injection port communicated with the reaction chamber and the control chamber; the application adopts the microfluidic analysis chip idea, and through microfabrication technology, functional elements such as the LED light source, the lens, the spectroscope, the reflecting mirror, the reaction chamber, the sample chamber, the control chamber, the micro flow channel, the photoelectric detector and the main control chip are integrated on the chip like integrated circuits, and the idea of transferring the functions of the whole laboratory to the chip is concentratedly embodied.

The invention discloses fermentation mucus lactobacillus with a uric acid reducing function and application of the fermentation mucus lactobacillus. The fermentation mucus lactobacillus is preserved in the China General Microbiological Culture Collection Center on August 4, 2025, and the preservation number is CGMCC No.35505. The invention further discloses a preparation method of the fermentation mucus lactobacillus. The fermented lactobacillus mucus has excellent creatinine degradation capability, can reduce serum uric acid, creatinine and urea nitrogen levels of an individual with hyperuricemia, and alleviates liver or kidney injury caused by the individual with hyperuricemia; in addition, the fermented lactobacillus mucus can also improve the composition of intestinal flora and inhibit the abnormal change of the flora related to metabolic disorder, thereby restoring the stable state of the microecology of the intestinal tract. Therefore, the fermented lactobacillus mucilaginosus can be used for preparing uric acid reducing functional foods, health foods or microecological preparations.

The application discloses use of allicin in promoting urea nitrogen conversion into nitrogen element in nucleotide or amino acid. The application finds through experiments that plant source compound allicin has the effect of promoting rumen urea nitrogen conversion into nitrogen element in nucleotide, sugar nucleotide or amino acid, thus, feeding ruminants with allicin directly or adding allicin into the basic daily ration of ruminants as a feed additive can promote urea nitrogen conversion into nitrogen element in nucleotide, sugar nucleotide or amino acid in the feed; the application further provides a method for promoting ruminants to convert urea nitrogen into nitrogen element in nucleotide, sugar nucleotide or amino acid for non-treatment purposes, which comprises: feeding ruminants with allicin directly or as a feed additive. The application has application prospects in providing high-quality protein sources for livestock and poultry, reducing feed costs and improving production performance of livestock and poultry and the like.

The utility model belongs to the technical field of detection card, concretely relates to a urea nitrogen detection card, including card shell, slide and membrane material assembly spare, membrane material assembly spare is embedded in the inside of card shell, one side of card shell is provided with sample adding port no.

One embodiment of a blood urea nitrogen (BUN) sensor measures urea nitrogen in a biological sample by measuring a differential voltage signal based on first and second voltage signals, each representing the amount of carbon dioxide detected. The first signal represents the amount of detected carbon dioxide resulting from an enzymatic reaction in the biological sample where a urease enzyme comes into contact with the immobilized sensor surface. The second voltage signal represents the amount of background carbon dioxide detected in the biological sample. The differential voltage signal indicates the amount of urea nitrogen in the biological sample, which can be determined by appropriate correlation. Other embodiments of the BUN sensor and methods for detecting BUN are also provided, as in other embodiments.

A walnut-derived xanthine oxidase inhibitory peptide and its application belong to the field of bioactive peptide biotechnology. The amino acid sequence of the xanthine oxidase inhibitory peptide provided by this invention is shown in SEQ ID No. 1. In vitro activity assays showed that the IC50 of this inhibitory peptide... 50 The concentration was 3.34 mg / mL, demonstrating its high inhibitory activity against xanthine oxidase. Furthermore, this inhibitory peptide can reduce the levels of creatinine, blood urea nitrogen, adenosine deaminase, aspartate aminotransferase, and alanine aminotransferase, regulate the expression of renal uric acid reabsorption protein URAT1, uric acid excretion protein GLUT9, and ABCG2, and significantly reduce uric acid production. It can be used to inhibit xanthine oxidase, prevent or improve hyperuricemia, and is applicable to the preparation of drugs for improving hyperuricemia. These drugs, with the active peptide as the sole active ingredient or one of its active ingredients, have promising application prospects.