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45 results about "Multi resistant bacteria" patented technology

Multi-drug resistant organisms (MDRO) are common bacteria (germs) that have developed resistance to multiple types of antibiotics. These bacteria are present on the bodies of many people, including on the skin, in the nose or other moist areas of the body, and in secretions.

Full-D-type antibacterial peptide with high enzymolysis stability and broad-spectrum antibacterial activity and application of full-D-type antibacterial peptide

PendingCN121517509AAntibacterial agentsPeptide/protein ingredientsMulti resistant bacteriaCell selectivity
The invention discloses a full D-type antibacterial peptide with high enzymolysis stability and broad-spectrum antibacterial activity and application thereof. The antibacterial peptide is obtained by sequentially and repeatedly arranging D-type tryptophan, D-type arginine and D-type lysine for four times and carrying out C-terminal amidation; the amino acid sequence of the gene is (D-Trp)-(D-Arg)-(D-Lys)-(D-Trp)-(D-Arg)-(D-Lys)-(D-Trp)-(D-Arg)-(D-Lys)-(D-Trp)-(D-Arg)-(D-Lys)-(D-Trp)-(D-Arg)-(D-Lys)-NH2, and is marked as DWRK-12. The antibacterial peptide shows broad-spectrum antibacterial activity and excellent stability, can effectively resist clinically separated multidrug resistant strains, and keeps high cell selectivity at the same time. Due to the characteristics, the antibacterial peptide has important application value in the aspect of developing novel antibacterial drugs, especially in the field of treatment of infection of multiple drug-resistant bacteria.
Owner:LANZHOU UNIV

Multi-drug-resistant bacterium infection risk assessment method, system and equipment and storage medium

InactiveCN121096654AMedical data miningHealth-index calculationMulti resistant bacteriaData set
The invention discloses a multi-drug-resistant bacterium infection risk assessment method, system and device and a storage medium, and belongs to the technical field of medical data analysis, and the method comprises the steps: collecting a clinical related data set of an ICU patient, and carrying out the preprocessing of the clinical related data set to obtain a to-be-assessed data set; performing feature extraction on the to-be-evaluated data set in combination with a long short-term memory network and a time sequence attention mechanism to obtain a high-risk feature set; inputting the high-risk feature set into a pre-constructed dynamic scoring model, and calculating a corresponding risk score through the dynamic scoring model; and grading the risk score based on a preset grading rule to obtain a current risk level, and outputting a corresponding intervention strategy through a preset intervention decision mechanism based on the current risk level. According to the scheme, the high-risk feature set is extracted by combining the long-short-term memory network with the time sequence attention mechanism, then the risk score is calculated through the dynamic scoring model, the risk level is determined according to the preset grading rule, the intervention strategy is output, and the accuracy of MDRO infection assessment is improved.
Owner:LIANYUNGANG SECOND PEOPLES HOSPITAL (LIANYUNGANG CLINICAL TUMOR RES INST)

Bacteriophage, salmonella bacteriolytic agent, composition, and method for controlling bacteria of the genus salmonella

PendingUS20260248139A1Multi resistant bacteriaSalmonella kiel
A novel bacteriophage having bacteriolytic activity against bacteria of the genus Salmonella, such as S. Enteritidis, and a bacteriolytic agent consisting of the same are provided. The bacteriophage and the bacteriolytic agent including the bacteriophage have a wide host range for bacteria of the genus Salmonella. A host-specific bacteriophage and an effective Salmonella bacteriolytic agent consisting of the same are provided. A bacteriophage capable of effectively controlling S. Typhimurium, and in particular, multidrug-resistant S. Typhimurium, and a bacteriolytic agent consisting of the same are also provided. A bacteriophage having a specific genomic DNA sequence; a Salmonella bacteriolytic agent consisting of the bacteriophage; and a composition comprising the same are provided.
Owner:KANEKA CORP +2

Composite nano preparation for treating diabetic ulcer and promoting wound healing and preparation method thereof

PendingCN121338033APowder deliveryAntisepticsBenzoic acidMulti resistant bacteria
The invention belongs to the technical field of biomedical materials. The invention provides a composite nano preparation for treating diabetic ulcer and promoting wound healing and a preparation method thereof. The preparation method comprises the following steps: mixing tetra (4-carboxyl phenyl) porphyrin and FeCl3. 6H2O for reaction, then adding a mixed solution composed of benzoic acid and 3, 5-dicarboxyphenylboronic acid for reaction, and then performing centrifugal drying; dispersing in water, adding a chloroplatinic acid solution, stirring, adding a sodium borohydride solution, continuously stirring, and centrifugally drying; stirring with a mixture of curcumin, flavonoid glycoside and astragaloside in ethanol, and carrying out centrifugal drying; and finally, stirring with glucose oxidase in water, and centrifugally drying. The composite nano preparation provided by the invention has an excellent antibacterial effect on multi-drug-resistant bacteria, can effectively destroy a biological membrane, can well treat diabetic ulcer and promote wound healing, and has a relatively good application prospect.
Owner:HAINAN UNIV

Compound leprosy treatment drug and preparation method and application thereof

PendingCN122163778AAntibacterial agentsPeptide/protein ingredientsMulti resistant bacteriaTissue repair
This invention provides a compound drug for treating melioidosis, its preparation method, and its application. The drug comprises active components of traditional Chinese medicine, a bioactive preparation, and a pharmaceutically acceptable carrier. The active components of traditional Chinese medicine are primarily extracts of Scutellaria baicalensis, Coptis chinensis, Fagopyrum dibotrys, and Polygonum cuspidatum. The bioactive preparation includes polymyxin B, homoserine lactonease, and recombinant human β-defensin 3. The components work synergistically to construct a comprehensive intervention system covering all pathological stages, including biofilm disruption, sterilization, anti-endotoxin activity, intracellular bacterial clearance, immune regulation, and tissue repair. This system can effectively disrupt bacterial biofilms, kill multidrug-resistant strains, neutralize endotoxins, and eliminate latent intracellular bacteria, addressing the core pain points of existing melioidosis treatments, such as strong drug resistance, significant toxic side effects, and high recurrence rates. The preparation process of this invention is carried out under low-temperature and sterile conditions throughout, which fully preserves the stability of the active ingredients, making it suitable for industrial production. The drug can be prepared in various dosage forms, covering all clinical subtypes of melioidosis, and possesses clinical application value and promising prospects for widespread application.
Owner:HAIKOU THIRD PEOPLES HOSPITAL

An enzyme-responsive probe, its preparation method and application

PendingCN122080023AAntibacterial agentsOrganic chemistryMulti resistant bacteriaInfections site
This invention relates to the field of bacterial infection treatment technology, and discloses an enzyme-responsive probe, its preparation method, and its applications. The probe of this invention constructs an enzyme-responsive "prodrug" structure by introducing cephalosporin derivative linker units that can be specifically cleaved by β-lactamases onto a hemicyanine optical framework. This structure remains optically and therapeutically inert in normal tissues, but is selectively activated at the site of infection by drug-resistant bacteria. When the probe contacts multidrug-resistant bacteria that overexpress β-lactamases, the linker units undergo enzymatic cleavage, releasing hemicyanine active molecules with near-infrared fluorescence emission and highly efficient photothermal conversion capabilities, achieving high-contrast fluorescence imaging and controllable photothermal sterilization of the infection focus. The probe of this invention has a simple synthetic route, mild conditions, and reliable purification methods, making it suitable for large-scale preparation, especially for the precise diagnosis and targeted photothermal synergistic treatment of superficial tissue infections such as bacterial keratitis.
Owner:SUZHOU UNIV

Benzimidazole-pyrazole hybrid antibacterial agent AJ01

ActiveDE202025106789U1Antibacterial agentsOrganic active ingredientsMulti resistant bacteriaHybrid compound
Composition comprising an antibacterial benzimidazole-pyrazole hybrid compound, N-(1H-Benzo[d]imidazol-2-yl)-1-(3-(4-Fluorphenyl)-1-phenyl-1H-pyrazole-4-yl)methanimin (AJ01), characterized at a minimum inhibitory concentration of 12.5 µg / ml against Staphylococcus aureus, including multi-resistant strains, and with predicted high affinity for bacterial target proteins.
Owner:LOVELY PROFESSIONAL UNIVERSITY PHAGWARA

Day lily polysaccharide with broad-spectrum antibacterial activity and application thereof

The invention relates to the technical field of natural product extraction and purification and biological medicine, in particular to day lily polysaccharide with broad-spectrum antibacterial activity and application of the day lily polysaccharide. The molecular weight of the hemerocallis citrina polysaccharide is 1959 Da, monosaccharide components of the hemerocallis citrina polysaccharide mainly comprise fructose (88.87%) and glucose (11.13%), and the hemerocallis citrina polysaccharide is high-fructose neutral polysaccharide. The main chain is-> 1)-beta-D-Fruf-(2->), side chains are connected to O-6 sites of partial main chain residues, and the side chains comprise beta-D-Fruf-(2->) and-> 6)-beta-D-Fruf-(2->); the molar percentages of the sugar residues Fruf1, 2, Fruf2, Fruf1, 2, 6, Fruf2, 6 and Glc1, 6 are respectively 41.94%, 23.59%, 9.27%, 16.80% and 8.40%, and the molar percentages of the sugar residues Fruf1, 2, Fruf2, Fruf2, Fruf6 and Glc1, 6 are respectively 41.94%, 23.59%, 9.27%, 16.80% and 8.40%; the hemerocallis citrina baroni polysaccharide shows remarkable bacteriostatic activity on clinically separated multi-drug-resistant strains and standard strains, and shows dose dependence; in addition, the improvement effect of the hemerocallis citrina polysaccharide on the lung tissue injury is enhanced along with the increase of the dosage, the effect can be quantified and repeatable, and the requirements of drug development are met.
Owner:GUANGXI UNIV

Aromatic polyketone compound, preparation method and application

PendingCN121108151AOrganic active ingredientsAntibacterial agentsMulti resistant bacteriaPseudomonas
The invention discloses an aromatic polyketone compound as well as a preparation method and application thereof. The compound GaB (3) has an effect of treating infection of multiple drug-resistant bacteria. The compound is obtained by being separated from a secondary metabolite of the symbiotic Streptomyces sp.QHH-9511 of licheniformis, and the compound 2, the compound 3, the compound 4 and the compound 5 are new compounds. According to the present invention, the research results show that the GaB can effectively sterilize a variety of drug-resistant bacteria (methicillin-resistant staphylococcus aureus, vancomycin-resistant enterococcus, carbapenem-resistant acinetobacter baumannii, multi-drug-resistant pseudomonas aeruginosa, multi-drug-resistant salmonella, and the like); in addition, the compound has the characteristics of broad-spectrum sterilization, biofilm formation inhibition and low-frequency drug resistance, and can be combined with other antibiotics to cope with super bacteria. Mechanism research shows that GaB is combined with glucosamine-6-phosphate synthetase (GlmS) to prevent synthesis of cell walls so as to play an antibacterial role, and a plurality of constructed living body models show that the compound can effectively reduce the content of bacteria in a body and promote wound repair and has in-vivo medication safety. The research result shows that the GaB can be used as a safe and effective novel pilot natural active small molecule for resisting infection of multiple drug-resistant bacteria.
Owner:NORTHWEST A & F UNIV +1

External antibacterial pharmaceutical composition as well as preparation method and application thereof

PendingCN122057005AOrganic active ingredientsAntibacterial agentsMulti resistant bacteriaTreatment effect
The invention discloses an external antibacterial medicine composition as well as a preparation method and application thereof, and belongs to the technical field of antibacterial medicines. The external antibacterial pharmaceutical composition provided by the invention comprises a medicinal active component and a pharmaceutically acceptable carrier, wherein the medicinal active component comprises polymyxin B sulfate, trimethoprim sulfate and lidocaine; every 10 g of the antibacterial pharmaceutical composition for external use is prepared from the following components in parts by weight: 40000 to 60000 U of polymyxin B sulfate, 0.08 to 0.16 g of trimethoprim sulfate and 0.30 to 0.35 g of lidocaine. The pharmaceutical composition disclosed by the invention has broad-spectrum inhibition on multiple drug-resistant bacteria such as common gram-negative drug-resistant bacteria and acinetobacter baumannii on a wound surface, synchronously plays a synergistic role in relieving inflammatory response of the wound surface and relieving local pain, and remarkably improves the medication safety and the comprehensive treatment effect while ensuring excellent antibacterial activity.
Owner:SHANDONG SEQUENTIAL BIOTECHNOLOGY CO LTD

Crystalline forms of a monobactam

PCT designated stageWO2026089982A1Amine active ingredientsHeterocyclic compound active ingredientsMulti resistant bacteriaAntibiotic Agents
This disclosure relates to the crystalline hydrate forms of (S)-2-((R)-6-(N-((1s,3S)-3-amino-cyclobutyl)carbamimidoyl)chroman-2-yl)-2-((((Z)-1-(2-aminothiazol-4-yl)-2-(((S)-2,2-dimethyl-4-oxo-1-(sulfooxy)azetidin-3-yl)amino)-2-oxoethylidene)amino)oxy)propanoic acid, including crystalline hydrate form A, crystalline hydrate form B and crystalline hydrate form D, which are useful as antibiotic agents for the treatment of bacterial infections, such as bacterial infections caused by gram-negative bacteria, including strains that are multidrug resistant.
Owner:MERCK SHARP & DOHME LLC

Lactobacillus johnsonii with function of resisting multiple drug-resistant bacterium biofilms and anti-inflammatory activity and application of lactobacillus johnsonii

The invention belongs to the technical field of microorganisms, and particularly relates to lactobacillus johnsonii with a function of resisting multiple drug-resistant bacterium biological membranes and anti-inflammatory activity and application of the lactobacillus johnsonii. The lactobacillus johnsonii A25041 provided by the invention has strong inhibition and anti-biofilm activity on multi-drug-resistant gram-negative bacteria (including escherichia coli, pseudomonas aeruginosa and acinetobacter baumannii) and methicillin-resistant staphylococcus aureus, and the lactobacillus johnsonii A25041 has good acid-base tolerance and gastrointestinal fluid tolerance, so that the lactobacillus johnsonii A25041 can be used for preparing medicines for preventing and treating various diseases. The composition shows excellent anti-inflammatory activity and oxidation resistance, does not have hemolysis capacity, is good in safety, has natural drug resistance to gentamicin, tetracycline, ciprofloxacin, lincomycin and compound sulfamethoxazole, can be used together with antibiotics at the same time or in sequence, maintains intestinal microecological balance and relieves antibiotic burden while exerting the sterilization effect of the antibiotics, and has a good application prospect. The method can be widely applied to functional food development, and has important application value in the field of biological medicine and daily chemical products.
Owner:AIAGE LIFE SCI CORP LTD +3

Aeromonas hydrophila broad-host-range bacteriophage and application thereof

PendingCN122168544AAntibacterial agentsDigestive systemMulti resistant bacteriaAeromonas
This invention relates to the field of microbial technology, and more particularly to a broad-spectrum Aeromonas hydrophila phage and its applications. The Aeromonas hydrophila phage AhP2505006 is classified as follows: Aeromonas hydrophila Phage AhP2505006, with accession number CCTCC NO: M20251307, exhibits cross-species lytic activity. It can effectively lyse *Aeromonas*, *Vibrio parahaemolyticus* and *Vibrio alginolyticus*, and *Citrobacter freundii*. It also possesses excellent targeting ability against multidrug-resistant strains and broad host spectrum characteristics, achieving a lysis rate of up to 80% against multidrug-resistant *Aeromonas hydrophila*. In the prevention and control of diseases caused by various pathogens, or in practical scenarios facing the limitations of traditional antibiotics and highly specific bacteriophages, it has become a highly promising solution.
Owner:WUHAN GRENON BIOTECHNOLOGY CO LTD

Antibacterial peptide and application thereof

This invention relates to an antimicrobial peptide and its applications. The amino acid sequence of the antimicrobial peptide is at least one of the sequences shown in SEQ ID No. 1 to SEQ ID No. 8. The antimicrobial peptide exhibits excellent broad-spectrum antimicrobial activity, for example, against Acinetobacter spp. (…). Acinetobacter ), Pseudomonas aeruginosa ( Pseudomonas aeruginosa ) and Bacillus spp. ( Bacillus This bacterium possesses antibacterial activity. Against the backdrop of increasingly severe global bacterial resistance and the gradual ineffectiveness of traditional antibiotics against multidrug-resistant bacteria, this provides a new treatment option for carbapenem-resistant bacteria such as Acinetobacter baumannii, Pseudomonas aeruginosa, and Bacillus subtilis, which pose a significant threat to public health, and offers new possibilities for solving the clinical dilemma of "no available drugs."
Owner:YUNNAN UNIV

Wound surface flushing assembly for diabetic foot infection nursing

PendingCN121422335AEnemata/irrigatorsNursing accommodationMulti resistant bacteriaNursing care
The invention discloses a wound flushing assembly for diabetic foot infection nursing, and relates to the technical field of diabetic foot nursing. A wound surface flushing assembly for diabetic foot infection nursing comprises a supporting rod, the top of the supporting rod is movably connected with an adjusting cylinder in a sleeving mode, a sealing box is fixedly installed at the top of the adjusting cylinder, and a sewage draining pipe is fixedly installed at the bottom of one side of the sealing box. The foot of a patient is isolated from the outside by arranging the sealing structure, an independent debridement space is formed, aerosol containing pathogenic bacteria generated during flushing is prevented from polluting the surrounding environment, the device is particularly suitable for diabetic foot patients infected by multiple drug-resistant bacteria, and the cross infection risk in a hospital is reduced; meanwhile, the stable sealing state can reduce the contact area of the wound surface and air, the oxidation speed of necrotic tissues is delayed, and the debridement environment is kept relatively clean.
Owner:HARBIN MEDICAL UNIVERSITY

Bifunctional aggregation-induced emission luminogen for monitoring and killing of multidrug-resistant bacteria

ActiveUS12691109B2Multi resistant bacteriaImaging Tool
Antibiotic compounds having both antibiotic and aggregation-induced emission (AIE) characteristics. The compounds comprise an azole antibiotic unit, for example naphthalimide triazole (NT), and an AIE unit, for example triphenylethylene (TriPE). The compounds act as an effective AIEgen with ROS generating capabilities. The present combinations of an azole antibiotic unit and an AIE unit do not negatively affect the antibacterial properties of the azole. Accordingly, the present compounds exterminate bacteria with both the antibacterial mechanism of the azole along with the ROS produced when the AIE unit is exposed to light. In addition, the intrinsic imagining ability of the present compounds enables them to be used as imaging tools to monitor the drug-bacteria interaction. Collectively, the present compounds provide multiple functions including imaging, monitoring, and bacterial infection inhibition for integrated diagnosis and treatment in clinical practices.
Owner:THE HONG KONG UNIV OF SCI & TECH

Main chain degradable carbonic ester alternating cationic antibacterial agent as well as preparation method and application thereof

The invention relates to the technical field of antibacterial agents, and discloses a main chain degradable type carbonic ester alternating cation antibacterial agent, the structural formula is shown in the following formulas: R1 is one of the following formulas I-XI, R2 is one of CH2CH2, CH2CH2CH2CH2 and CH2OCH2CH2OCH2, the value range of n1 is 2-7, the value range of m is 3-7, and the value range of n is 10-20. According to the antibacterial agent, a cationic sterilization group and a degradable carbonic ester group are alternately introduced into a polymer main chain, so that accurate construction of a structure is realized. The prepared carbonic ester alternate cationic antibacterial agent has broad-spectrum and efficient activity on clinically separated multi-drug-resistant bacteria, the minimum inhibitory concentration (MIC) can reach 2-8 mu g / mL, degradation products are non-toxic and have no bactericidal activity, and meanwhile, the bacteria are difficult to induce to generate drug resistance.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACAD OF SCI +1

Antibacterial biphenol derivative and preparation method thereof

The invention provides an antibacterial biphenol derivative and a preparation method thereof, and belongs to the technical field of organic synthesis. The amphiphilic target compound with high antibacterial activity is obtained by carrying out structural modification on a biphenol core skeleton, introducing an amido bond to a phenolic hydroxyl site, connecting amino and guanidyl cation groups and simultaneously introducing a biphenylmethyl or n-hexyl hydrophobic side chain. The derivative disclosed by the invention has a remarkable inhibition effect on gram-positive bacteria, gram-negative bacteria and multi-drug-resistant strains. The compound can be widely applied to preparation of antibacterial drugs, medical disinfection preparations and antibacterial functional materials, and has important clinical transformation value in the fields of infectious disease treatment and medical protection.
Owner:ZUNYI MEDICAL UNIVERSITY

Disinfecting, drying and storing box of multi-drug-resistant bacterium aerosol inhalation device

InactiveCN121154870ADrying gas arrangementsLavatory sanitoryBiotechnologyMulti resistant bacteria
The invention relates to the technical field of medical equipment, in particular to a disinfecting and drying storage box of a multi-drug-resistant bacterium aerosol inhalation device, which comprises a shell, a drying cavity and a soaking cavity are arranged in the shell, a transmission module is mounted at the center of the drying cavity and the soaking cavity, the transmission module comprises a driving part, and a screw rod is fixedly connected to an output shaft of the driving part. The lead screw is sleeved with a nut seat, a carrier is fixedly connected to the nut seat, and a clamping assembly is installed on the carrier. A high-temperature hot air module is installed on the side wall of the drying cavity, a hydrogen peroxide plasma disinfection module is arranged at the top of the drying cavity, an annular soaking tank is installed at the bottom of the soaking cavity, disinfection soaking liquid is contained in the soaking tank, and a liquid level sensor and a constant-temperature heating piece are arranged on the cavity wall of the soaking tank; a control panel is arranged on the outer side of the shell. The device is used for realizing the integrated treatment of the multi-drug-resistant bacterium aerosol inhalation device from deep soaking disinfection, efficient hot air drying to full-dimensional plasma secondary disinfection.
Owner:THE FIRST PEOPLES HOSPITAL OF NANTONG

Use of bacterial membrane dCACHE-type chemotaxis receptor protein family as target in preparation or screening of anti-multiple drug resistant bacteria drugs

PendingCN122277682AEscherichia coliMulti resistant bacteria
This invention discloses the use of a bacterial membrane dCACHE-type chemokine receptor protein family as a target in the preparation or screening of drugs against multidrug-resistant bacteria, belonging to the field of biomedical technology. This invention reveals and verifies for the first time the core regulatory mechanism of the dCACHE-type chemokine receptor protein family in the bacterial infection process: these proteins are key membrane surface receptors mediating bacterial chemotaxis towards macrophages; their loss of function can directly block bacterial chemotactic movement and significantly reduce pathogenicity. This invention, by targeting the conserved ligand binding interface, successfully inhibited the infectivity of drug-resistant pathogens such as *Yersinia pseudotuberculosis*, carbapenem-resistant *Acinetobacter baumannii*, and carbapenem-resistant *Escherichia coli*. The novel targeting strategy provided by this invention not only effectively overcomes the clinical bottleneck of "no available drugs" for carbapenem-resistant multidrug-resistant bacteria but also constructs a broad-spectrum protective barrier covering the entire homologous protein family, possessing extremely high clinical translational value and commercial development potential.
Owner:NORTHWEST A & F UNIV

Complex antibacterial composition having bactericidal activity and long-lasting antibacterial activity against various strains including multidrug-resistant bacteria

PCT designated stageWO2026034917A1BiocideFungicidesBiotechnologyMulti resistant bacteria
The present invention relates to an antibacterial composition. An antibacterial composition according to an embodiment of the present invention has an antibacterial effect against a multidrug-resistant strain, and comprises: a first antibacterial compound; a second antibacterial compound which is mixed with the first antibacterial compound and exhibits an antibacterial effect against the strain together with the first antibacterial compound; and a base compound which supports the first antibacterial compound and the second antibacterial compound, thereby maintaining the antibacterial activity thereof, wherein the first antibacterial compound is didecyldimethylammonium chloride (DDAC), and the second antibacterial compound is 3-(trimethoxysilyl)-propyldimethyloctadecyl ammonium chloride (Si-QAC).
Owner:R2ELAB INC

Ts-ELP temperature-sensitive self-assembly nano fusion protein, antibiotic delivery system and preparation method

PendingCN121609810AConnective tissue peptidesAntibacterial agentsMulti resistant bacteriaDisease
The invention discloses a Ts-ELP temperature-sensitive self-assembly nano fusion protein, an antibiotic delivery system and a preparation method, and belongs to the technical field of nano preparations. The fusion protein comprises antibacterial peptide Ts and elastin-like polypeptide ELP which are sequentially connected. An MMP-9 restriction enzyme cutting site is introduced between the antibacterial peptide Ts and the elastin-like polypeptide ELP. Fusion protein and tigecycline (Tig) are self-assembled to form an antibiotic delivery system, the delivery system has Gram-negative bacterium surface lipopolysaccharide targeted recognition capability, and drug release is triggered through pH response and a phase separation mechanism in an infection microenvironment, so that the enrichment efficiency of tigecycline in a focus area is enhanced, and the drug delivery efficiency is improved. The antibiotic delivery system has the technical advantages of strong targeting property, enhanced antibacterial activity, low drug-resistant induction risk, good biological safety, simple preparation process, high yield and the like, can be used for treatment of multi-drug-resistant bacterium infection, and is especially suitable for prevention and treatment of carbapenem-resistant klebsiella pneumoniae (CRKP) and drug-resistant gram-negative bacterium infection related diseases.
Owner:SOUTHEAST UNIV

Warning device for multiple drug-resistant bacteria

ActiveCN223797102UAdvertisingIlluminated signsMulti resistant bacteriaResistant bacteria
The utility model relates to a multi-drug-resistant bacterium warning device which comprises a base, a multi-drug-resistant bacterium warning module area and a multi-drug-resistant bacterium detection part warning module area are arranged at the top end of the base, and the multi-drug-resistant bacterium detection part warning module area and the multi-drug-resistant bacterium warning module area are arranged in a concentric circle mode. The multi-drug-resistant bacterium warning module area is positioned on the outer ring of the multi-drug-resistant bacterium detection part warning module area; the multi-drug-resistant bacterium warning module area comprises a plurality of drug-resistant bacterium modules; and the multi-drug-resistant bacterium detection part warning module area comprises a plurality of detection part modules. According to the multi-drug-resistant-bacterium infection identification device, the multi-drug-resistant-bacterium types are distinguished through the drug-resistant-bacterium modules with different colors, when the lighting mechanisms of the drug-resistant-bacterium modules are turned on, the multi-drug-resistant-bacterium infection types of a patient can be identified, and the infection of the multiple multi-drug-resistant-bacterium types of the patient can be displayed; multiple drug-resistant bacterium detection parts of a patient are identified through detection part modules with different colors, so that medical workers can quickly identify multiple drug-resistant bacterium types and different multiple drug-resistant bacterium infection parts.
Owner:NORTHERN JIANGSU PEOPLES HOSPITAL

Bacterial DNA gyrase inhibitors and methods of use thereof

The subject invention provides fluorophore-quencher nucleic acid molecules comprising relaxed or supercoiled DNA molecules, and their use in rapid and efficient high-throughput screening (HTS) assays to screen and identify compounds that inhibit DNA gyrases. These compounds can be used as antibiotics for treating bacterial infections, especially, multidrug resistant bacterial infections.
Owner:FLORIDA INTERNATIONAL UNIVERSITY

A disposable thermometer immersion device

ActiveCN224336109UCapsThermometer detailsMulti resistant bacteriaAlcohol
This invention provides a disposable thermometer immersion device for immersing thermometers, comprising: a thermometer box for containing alcohol for immersing the thermometer; a first cover for pouring alcohol into the thermometer box after opening, the first cover having a hole for the thermometer to pass through; and a second cover for removing the thermometer after opening the first cover and covering the hole. This invention, by designing a thermometer box, ensures that the thermometer is completely submerged, complying with disinfection and isolation principles. It is particularly suitable for individual storage and use by patients with multidrug-resistant bacterial infections or colonization. It avoids cross-infection caused by improper disinfection, and the first and second covers facilitate thermometer retrieval, improving efficiency.
Owner:THE FIRST AFFILIATED HOSPITAL OF NAVAL MEDICAL UNIVERSITY OF CHINESE PEOPLES LIBERATION ARMY

Beta-lactamase inhibitors and their preparation

PCT designated stageWO2026102632A1Antibacterial agentsOrganic chemistryMulti resistant bacteriaPharmaceutical medicine
The present invention belongs to the medical field, and relates to novel β-lactamase inhibitors, for the treatment of bacterial infections in combination with β-lactam antibiotics, including infection caused by drug resistant organisms and especially multi-drug resistant organisms. The present invention includes compounds according to formula (I) : or pharmaceutically acceptable salts thereof, wherein M and X are as defined herein.
Owner:HANSONSBECK IND LTD

Acinetobacter baumannii phage and application thereof

PendingCN121874136AIncrease lytic activityHigh burst volumeBiocideMicroorganism based processesBiotechnologyMulti resistant bacteria
The invention relates to the technical field of biology, and discloses an acinetobacter baumannii bacteriophage and application thereof, the acinetobacter baumannii bacteriophage is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number is CCTCC M20252580. The bacteriophage belongs to the brachycaudal bacteriophage family, the genome is double-stranded linear DNA, the full length is 41020bp, the bacteriophage does not contain integrase, virulence factors and drug-resistant genes, and the bacteriophage has high biological safety. The bacteriophage is high in titer, can specifically recognize and efficiently split acinetobacter baumannii including multi-drug-resistant strains, and has the capacity of permeating and removing bacterial biofilms at the same time. The invention also discloses application of the bacteriophage in preparation of antibacterial compositions, sterilization and disinfection preparations and food preservation and fresh-keeping. The bacteriophage provided by the invention is high in sterilization efficiency, strong in specificity, safe and non-toxic, and an effective biological solution is provided for prevention and control of acinetobacter baumannii drug resistance and biological membrane pollution.
Owner:CHONGQING NORMAL UNIVERSITY

Medical multifunctional disinfection, isolation and storage box for multiple drug-resistant bacteria

PendingCN121668354ALavatory sanitoryChemicalsMulti resistant bacteriaResistant bacteria
The invention belongs to the technical field of medical instruments. Aiming at the problems that the existing medical instrument disinfection and storage process is tedious and is easily polluted by multiple drug-resistant bacteria, the invention provides a medical multifunctional multi-drug-resistant bacteria disinfection, isolation and storage box, which comprises a plurality of storage units, a circulating mechanism and a multi-drug-resistant bacteria disinfection mechanism, wherein each storage unit is internally provided with a plurality of disinfection frames, and the circulation mechanism is used for rotating each disinfection frame, so that the multi-drug-resistant bacterium disinfection mechanism can disinfect medical articles in each disinfection frame. Different types of medical apparatuses and instruments are stored in the corresponding storage units respectively, and all the medical apparatuses and instruments are placed in the multiple disinfection frames respectively, so that the medical apparatuses and instruments in the disinfection frames are thoroughly disinfected by the circulating mechanism and the multi-drug-resistant bacterium disinfection mechanism, and the medical apparatuses and instruments do not need to be transferred; the medical instruments can be directly stored in the storage units, the management process of the medical instruments is simplified, and the prevention and control effect of multi-drug-resistant bacterium pollution is improved.
Owner:AFFILIATED HOSPITAL OF NANTONG UNIV