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Science China(Life Sciences) 2023年第11期66卷 2692-2693页

作者： manfred Schartl Developmental Biochemistry BiocenterUniversity of WürzburgWürzburg 97074Germany The Xiphophorus Genetic Stock Center Texas State UniversitySan Marcos 78666USA

The leafy seadragon(Phycodurus eques)or Glauert’s seadragon is one of the most ornately camouflaged creatures on this *** is found in temperate South Australian waters,where its colouration and gossamer leaf-shaped appendages give it excellent camouflage on kelp-covered rocky *** seadragons are very poor swimmers and rely on their camouflage to avoid *** lengths up to 50 cm,they are relatively large compared with their next relatives,the pipefish.

关键词： dragon forest planet

Breakthrough in the challenging P450-catalyzed chemoenzymatic synthesis of C14-functionalized steroids

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中国科学:化学英文版 2023年第9期66卷 2435-2436页

作者： manfred T.Reetz Frank Hollmann Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 145480 MülheimGermany Tianjin Institute of Industrial Biotechnology Chinese Academy of SciencesTianjin 300308China Department of Biotechnology Delft Universityvan der Maasweg 92629 HZ DelftNetherlands

Intensive past research has demonstrated that cytochrome P450 monooxygenases are involved in the biosynthesis of numerous natural products and in human metabolism of various pharmaceuticals [1]. This inspired synthetic organic and pharmaceutical chemists to test them as catalysts in the oxidative hydroxylation of steroids. Unfortunately, wildtype P450s generally proved to show low levels of regio-and diastereoselectivity as well as suboptimal activity.

关键词： steroids catalyzed synthesis

Efficiency of surface inactivation disinfectants for bacteria studied in an aquaculture microbiology laboratory

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Journal of Biosafety and Biosecurity 2023年第2期5卷 84-86页

作者： manfred Weidmann Institute of Aquaculture University of StirlingStirlingScotlandUK Medizinische Hochschule Brandenburg Institut für Virologie und MikrobiologieUniversitätsplatz 101986 SenftenbergGermany

Routine microbial inactivation procedures used in microbiology laboratories must be *** this study,the efficacy of surface disinfection using 70%Isopropanol,0.45%Presept,and 1%Virkon was tested against 24 bacterial strains commonly handled in aquaculture microbiology *** was ineffective against Nocardia asteroides NCIMB 1290,while Virkon was not effective against Aeromonas eucrenophila NCIMB 74 or Pediococcus acidilacti R52037.

关键词： Inactivation Aquaculture Bacterial pathogens Aeromonas eucrenophila Nocardia asteroides Pediococcus acidilacti

Monitoring dynamics of defects and single Fe atoms in N-functionalized few-layer graphene by in situ temperature programmed scanning transmission electron microscopy

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Journal of Energy Chemistry 2022年第1期31卷 520-530,I0014页

作者： Rosa Arrigo Takeo Sasaki June Callison Diego Gianolio manfred Erwin Schuster School of Science Engineering and EnvironmentUniversity of SalfordManchester M54WTUK Diamond Light Source Harwell Science and Innovation CampusDidcot 0X1/ODEUK JEOL UK Ltd.JEOL House 1-2 Silver CourtWatchmeadWelwyn Garden CityHerts AL71LTUK Department of Chemistry University College London20 Gordon StreetLondon WC1H OAJUK UK Catalysis Hub Research Complex at Harwell(RCaH)Rutherford Appleton LaboratoryHarwell Oxon 0X11 OFAUK Johnson Matthey Technology Centre Reading RG49NH.UK

In this study,we aim to contribute an understanding of the pathway of formation of Fe species during top-down synthesis of dispersed Fe on N-functionalized few layer graphene,widely used in *** use X-ray absorption spectroscopy to determine the electronic structure and coordination geometry of the Fe species and in situ high angle annular dark field scanning transmission electron microscopy combined with atomic resolved electron energy loss spectroscopy to localize these,identify their chemical configuration and monitor their dynamics during thermal *** show the high mobility of peripheral Fe atoms,first diffusing rapidly at the trims of the graphene layers and at temperatures as high as 573 K,diffusing from the edge planes towards in-plane locations of the graphene layers forming three-,four-coordinated metal sites and more complexes polynuclear Fe *** process occurs via bond C-C breaking which partially reduces the extension of the graphene ***,the vast majority of Fe is segregated as a metal *** dynamic interconversion depends on the structural details of the surrounding graphitic environment in which these are formed as well as the Fe loading.N species appear stabilizing isolated and polynuclear Fe species even at temperatures as high as 873 *** significance of our results lies on the fact that single Fe atoms in graphene are highly mobile and therefore a structural description of the electroactive sites as such is insufficient and more complex species might be more relevant,especially in the case of multielectron transfer *** we provide the experimental evidence of the formation of these polynuclear Fe-N sites and their structural characteristics.

关键词： HAADF-STEM Single Fe atom sites N-doped Few-layer graphene Dinuclear Fe species

Histological remission of eosinophilic esophagitis under asthma therapy with IL-5 receptor monoclonal antibody:A case report

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World Journal of Clinical Cases 2022年第14期10卷 4502-4508页

作者： Marc Huguenot Anne-Catherine Bruhm manfred Essig Department of Gastroenterology and Internal Medicine Tiefenau HospitalBern 3004Switzerland

BACKGROUND Benralizumab is a monoclonal antibody targeting the IL-5 receptor used in the treatment of *** use of benralizumab in other conditions is only emerging and could represent a therapeutic option for other eosinophil-associated ***,we report the case of a patient suffering from eosinophilic esophagitis and asthma who achieved histological remission of eosinophilic esophagitis(EoE)under benralizumab treatment for his *** SUMMARY Our patient was a 56-year-old white male with a history of eosinophilic esophagitis and severe *** years of usual treatments,including topical steroids,biological treatment with mepolizumab,and standard asthma treatment,only poor control of both conditions was obtained.A control gastroscopy after the initiation of benralizumab showed complete histological remission of his *** Our case shows the effects of therapy with a novel agent not yet approved for this condition but for other diseases,with histological resolution of EoE after *** clinical remission was not observed,which exemplifies the complex nature of EoE,its associated psychosomatic burden,and the chronification of the ***,monoclonal antibodies targeting the Th2 response and,in our case,an IL5 receptor antagonist,achieved complete histological remission,which was not the case with an antibody against IL-5,which was also initiated to treat asthma.

关键词： Eosinophilic esophagitis Benralizumab,Eosinophilic asthma Case report

Phosphorylated Salicylic Acid as Flame Retardant in Epoxy Resins and Composites

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Journal of Renewable Materials 2022年第7期10卷 1931-1950页

作者： Lara Greiner Philipp Kukla Sebastian Eibl manfred Döring Bundeswehr Research Institute for Materials Fuels and LubricantsErding85435Germany Fraunhofer Institute for Structural Durability and System Reliability LBF Darmstadt64289Germany Schill+Seilacher GmbH Böblingen71032Germany

A novel,versatile flame retardant substructure based on phosphorylated salicylic acid(SCP)is described and used in the synthesis of new flame retardants for HexFlowRTM6,a high-performance epoxy resin used in resin transfer molding processes as composite *** starting material salicylic acid can be obtained from natural *** as reactive phosphorus chloride is converted with a novolak,a novolak containing 9,10-dihydro-9-oxa-10-phospha-phenanthrene-10-oxide(DOPO)substituents or DOPO-hydroquinone to flame retardants with sufficient thermal stability and high char ***,these flame retardants are soluble in the resin as well as react into the epoxy *** determined thermal stability and glass transition temperatures of flame retarded neat resin samples as well as the interlaminar shear strength of corresponding carbon fiber reinforced composite materials showed the applicability of these flame *** resin samples and composites were tested for their flammability by UL94 and/or flame-retardant performance by cone *** tested flame retardants decrease the peak of heat release rate by up to 54%for neat resin samples.A combination of DOPO and SCP in one flame retardant shows synergistic effects in char formation and the mode of action adapts to neat resin or fiber-reinforced samples,so there is efficient flame retardancy in both ***,a tailoring of SCP based flame retardants is ***,these flame retardants efficiently reduce fiber degradation during combustion of carbon fiber-reinforced epoxy resins as observed by scanning electron microscopy and energy dispersive X-ray spectroscopy.

关键词： Epoxy resin composite fiber protection bio-based flame retardant

Growth efficiency,intestinal biology,and nutrient utilization and requirements of black soldier fly(Hermetia illucens)larvae compared to monogastric livestock species:a review

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Journal of Animal Science and Biotechnology 2022年第5期13卷 1262-1281页

作者： Mohammad M.Seyedalmoosavi manfred Mielenz Teun Veldkamp Gurbuz Das Cornelia C.Metges Research Institute for Farm Animal Biology(FBN) Institute of Nutritional Physiology18196 DummerstorfGermany Wageningen UR Livestock ResearchP.O.Box 3386700AH WageningenNetherlands

In recent years,interest in the larvae of black soldier fly(BSF)(Hermetia illucens)as a sustainable protein resource for livestock feed has increased ***,knowledge on the nutritional and physiological aspects of this insect,especially compared to other conventional farmed animals is *** review presents a critical comparison of data on the growth potential and efficiency of the BSF larvae(BSFL)compared to conventional monogastric livestock *** of BSFL over other monogastric livestock species includes their high growth rate and their ability to convert low-grade organic waste into high-quality protein and fat-rich biomass suitable for use in animal *** using literature data suggest that BSFL are more efficient than broilers,pigs and fish in terms of conversion of substrate protein into body mass,but less efficient than broilers and fish in utilization of substrate gross energy to gain body *** growth efficiency varies greatly depending on the nutrient quality of their dietary *** might be associated with the function of their gastrointestinal tract,including the activity of digestive enzymes,the substrate particle characteristics,and their intestinal microbial *** conceived advantage of BSFL having an environmental footprint better than conventional livestock is only true if BSFL is produced on low-grade organic waste and its protein would directly be used for human ***,their potential role as a new species to better close nutrient cycles in agro-ecological systems needs to be reconsidered,and we conclude that BSFL is a complementary livestock species efficiently utilizing organic waste that cannot be utilized by other *** addition,we provide comparative insight into morpho-functional aspects of the gut,characterization of digestive enzymes,gut microbiota and fiber ***,current knowledge on the nutritional utilization and requirements of BSFL in te

关键词： Black soldier fly Comparative growth performance Farm animals Insects as feed Intestinal function Nutrient cycles Nutrition and physiology

Ultrastructural cellular signatures: does cellular form follow function?

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National Science Review 2019年第5期6卷 861-863页

作者： manfred Auer Molecular Biophysics and Integrated Bioimaging Division Lawrence Berkeley National Laboratory

In his watershed 1896 essay The Tall Office Building Artistically Considered,protomodern architect Louis Sullivan famously declared that ‘form follows function’.Could this concept also hold true in biology? Have cel... 详细信息

关键词： Ultrastructural cellular signatures does cellular form follow function

CO_(2)化学酶转化的突破:实现立体化学完全可控的可持续人工合成己糖

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Science Bulletin 2023年第20期68卷 2291-2292页

作者： manfred T.Reetz Tianjin Institute of Industrial Biotechnology Chinese Academy of SciencesTianjin 300308China Biocatalysis Section Max-Planck-Institut fur KohlenforschungMulheim an der Ruhr 45470Germany

The capture and transformation of the greenhouse gas CO_(2) into high-value products is currently of paramount importance worldwide,with many different approaches being conceived and tested[1-6].The transformation CO_(2) into carbohydrates is a particularly intriguing idea,but putting it into reality is challenging due to the necessary complete control in the creation of stereo-centers and ensuring sufficient *** far,the results are not overly convincing[7].The inspiration for solving this fundamental problem is manifold,inter alia,because carbohydrates(sugars)contribute significantly to energy storage and provide carriers for human living,especially important biologically active *** also constitute the main resource for industrial biomanufacturing.

关键词：立体化学 manifold sugar

Single-cell trajectories of melanoma cell resistance to targeted treatment

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Cancer Biology & Medicine 2022年第1期19卷 56-73页

作者： Maria Schmidt Lena Sünke Mortensen Henry Loeffler-Wirth Corinna Kosnopfel Knut Krohn Hans Binder manfred Kunz Interdisciplinary Centre for Bioinformatics University of LeipzigLeipzig 04107Germany Department of Dermatology Venereology and AllergologyUniversity of WürzburgWürzburg 97074Germany Core Unit DNA Technologies Medical FacultyUniversity of LeipzigLeipzig 04103Germany Department of Dermatology Venereology and AllergologyUniversity of Leipzig Medical CenterLeipzig 04103Germany

Objective:Cellular heterogeneity is regarded as a major factor affecting treatment response and resistance in malignant *** developments in single-cell sequencing technology have provided deeper insights into these ***:Here,we analyzed a BRAFV600 E-mutant melanoma cell line by single-cell RNA-seq under various conditions:cells sensitive to BRAF inhibition with BRAF inhibitor vemurafenib and cells resistant to BRAF inhibition with vemurafenib alone or vemurafenib in combination with the MEK1/2 inhibitors cobimetinib or *** reduction by t-distributed stochastic neighbor embedding and self-organizing maps identified distinct trajectories of resistance development clearly separating the 4 treatment conditions in cell and gene state ***:Trajectories associated with resistance to single-agent treatment involved cell cycle,extracellular matrix,and de-differentiation *** contrast,shifts detected in double-resistant cells primarily affected translation and mitogen-activated protein kinase pathway reactivation,with a small subpopulation showing markers of *** findings were validated in pseudotime analyses and RNA velocity ***:The single-cell transcriptomic analyses reported here employed a spectrum of bioinformatics methods to identify mechanisms of melanoma resistance to single-and double-agent *** study deepens our understanding of treatmentinduced cellular reprogramming and plasticity in melanoma cells and identifies targets of potential relevance to the management of treatment resistance.

关键词： Melanoma single-cell transcriptome sequencing treatment response