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Polyamide Fibers Covered with Chlorhexidine: Thermodynamic Aspects

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Journal of Surface Engineered Materials and Advanced Technology 2015年第4期5卷 190-206页

作者： E. Giménez-Martín M. lópez-andrade J. A. Moleón-Baca M. A. lópez A. Ontiveros-Ortega Department of Physics University of Jaén Campus Universitario de las Lagunillas Jaén Spain Spanish Dental Council Madrid Spain Odontology Faculty University of Granada Granada Spain

Results of dynamic and equilibrium of sorption of a reactive dye Remazol Brilliant Blue, and a bactericidal agent, Digluconate of Chlorhexidine over Polyamide fibers are presented with the aim of supplying the fiber with bactericidal properties. However, adsorption of Chlorhexidine onto Polyamide is scarce due to the lack of interactions between the reactive groups of the fiber and the antiseptic molecule. Therefore, in order to provide the fiber surface with anionic groups, fiber has been previously dyed with Remazol Brilliant Blue which increases the negative charge of the fiber surface due to the presence of its sulfonate end groups. Thermodynamic parameters of equilibrium sorption in the two situations, fiber/dye and fiber-dye/Chlorhexidine, have been analyzed, as function of the temperature, pH and concentration of the dye in the pretreatment. Results show that when sorption of Remazol Brilliant Blue reaches the value of about 50 mmol/ kg at the higher temperature and concentration tested, the amount of Chlorhexidine adsorbed exhibits its maximum value which is 6 mmol/kg. Both processes, adsorption of Remazol Brilliant Blue and adsorption of Chlorhexidine, fit well to langmuir adsorption model, suggesting the existence of some kinds of specific interactions between adsorbent and adsorbate. Thermodynamic functions show that the interaction is endothermic and spontaneous in all the rage of temperature tested. The kinetic studies show that sorption of Remazol Brilliant Blue is better described by pseudo-first order model, while sorption of Chlorhexidine fits better to pseudo-second order model, and seems to be quicker process. According to the obtained results, chemical interaction between the vinyl-sulfone group of Remazol Brilliant Blue and the amine groups of Polyamide fiber, followed by electrostatic interactions between the guanine group of the Chlorhexidine and the sulfonate group of the dye must be considered in order to explain the adsorption process.

关键词： Nylon 6.6 Reactive Dye Chlorhexidine Adsorption Isotherms Kinetic of Adsorption

Performance and calibration of quark/gluon-jet taggers using 140 fb^(-1) of pp collisions at √s=13 TeV with the ATlAS detector

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Chinese Physics C 2024年第2期48卷 1-25页

作者： G. Aad B. Abbott K. Abeling N.J. Abicht S.H. Abidi A. Aboulhorma H. Abramowicz H. Abreu Y. Abulaiti B.S. Acharya C. Adam Bourdarios l. Adamczyk S.V. Addepalli M.J. Addison J. Adelman A. Adiguzel T. Adye A.A. Affolder Y. Afik M.N. Agaras J. Agarwala A. Aggarwal C. Agheorghiesei A. Ahmad F. Ahmadov W.S. Ahmed S. Ahuja X. Ai G. Aielli A. Aikot M. Ait Tamlihat B. Aitbenchikh I. Aizenberg M. Akbiyik T.P.A. Åkesson A.V. Akimov D. Akiyama N.N. Akolkar K. Al Khoury G.l. Alberghi J. Albert P. Albicocco G.l. Albouy S. Alderweireldt M. Aleksa I.N. Aleksandrov C. Alexa T. Alexopoulos F. Alfonsi M. Algren M. Alhroob B. Ali H.M.J. Ali S. Ali S.W. Alibocus M. Aliev G. Alimonti W. Alkakhi C. Allaire B.M.M. Allbrooke J.F. Allen C.A. Allendes Flores P.P. Allport A. Aloisio F. Alonso C. Alpigiani M. Alvarez Estevez A. Alvarez Fernandez M. Alves Cardoso M.G. Alviggi M. Aly Y. Amaral Coutinho A. Ambler C. Amelung M. Amerl C.G. Ames D. Amidei S.P. Amor Dos Santos K.R. Amos V. Ananiev C. Anastopoulos T. Andeen J.K. Anders S.Y. Andrean A. Andreazza S. Angelidakis A. Angerami A.V. Anisenkov A. Annovi C. Antel M.T. Anthony E. Antipov M. Antonelli F. Anulli M. Aoki T. Aoki J.A. Aparisi Pozo M.A. Aparo l. Aperio Bella C. Appelt A. Apyan N. Aranzabal S.J. Arbiol Val C. Arcangeletti A.T.H. Arce E. Arena J-F. Arguin S. Argyropoulos J.-H. Arling O. Arnaez H. Arnold G. Artoni H. Asada K. Asai S. Asai N.A. Asbah J. Assahsah K. Assamagan R. Astalos S. Atashi R.J. Atkin M. Atkinson H. Atmani P.A. Atmasiddha K. Augsten S. Auricchio A.D. Auriol V.A. Austrup G. Avolio K. Axiotis G. Azuelos D. Babal H. Bachacou K. Bachas A. Bachiu F. Backman A. Badea P. Bagnaia M. Bahmani A.J. Bailey V.R. Bailey J.T. Baines l. Baines O.K. Baker E. Bakos D. Bakshi Gupta V. Balakrishnan R. Balasubramanian E.M. Baldin P. Balek E. Ballabene F. Balli l.M. Baltes W.K. Balunas J. Balz E. Banas M. Bandieramonte A. Bandyopadhyay S. Bansal l. Barak M. Barakat E.l. Barberio D. Barberis M. Barbero M.Z. Barel K.N. Barends T. Barillari M-S. Barisits T. Barklow P. Baron D.A. Baron Mo The ATlAS Collaboration

The identification of jets originating from quarks and gluons,often referred to as quark/gluon tagging,plays an important role in various analyses performed at the large Hadron Collider,as Standard Model measurements and searches for new particles decaying to quarks often rely on suppressing a large gluon-induced *** paper describes the measurement of the efficiencies of quark/gluon taggers developed within the ATlAS Collaboration,using √s=13 TeV proton–proton collision data with an integrated luminosity of 140 fb^(-1) collected by the ATlAS *** taggers with high performances in rejecting jets from gluon over jets from quarks are studied:one tagger is based on requirements on the number of inner-detector tracks associated with the jet,and the other combines several jet substructure observables using a boosted decision tree.A method is established to determine the quark/gluon fraction in data,by using quark/gluon-enriched subsamples defined by the jet *** in tagging efficiency between data and simulation are provided for jets with transverse momentum between 500 GeV and 2 TeV and for multiple tagger working points.

关键词： ATlAS JET QUARK GlUON TAGGING

Personalizing therapies for gastric cancer: Molecular mechanisms and novel targeted therapies

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World Journal of Gastroenterology 2013年第38期19卷 6383-6397页

作者： Michael luis Ana Tavares liliana S Carvalho lúcio lara-Santos António Araújo Ramon andrade de Mello Gastrointestinal Unit Service of Medical OncologyPortuguese Oncology Institute4200-072 PortoPortugal Gastrointestinal Unit Experimental Pathology and Therapeutics GroupResearch Center-Portuguese Oncology Institute4200-072 PortoPortugal Department of Pharmacology and Therapeutics Faculty of MedicineUniversity of Porto4200-319 PortoPortugal Institute of Cellular and Molecular Biology 4150-180 PortoPortugal Gastrointestinal Unit Section of Surgical OncologyPortuguese Oncology Institute4200-072 PortoPortugal Department of Medicine Faculty of MedicineUniversity of Porto4200-319 PortoPortugal

Globally,gastric cancer is the 4thmost frequently diagnosed cancer and the 2ndleading cause of death from cancer,with an estimated 990000 new cases and738000 deaths registered in *** the advanced setting,standard chemotherapies protocols acquired an important role since last decades in prolong ***,recent advances in molecular therapies provided a new interesting weapon to treat advanced gastric cancer through anti-human epidermal growth factor receptor 2(HER2)***,an anti-HER2 monoclonal antibody,was the first target drug in the metastatic setting that showed benefit in overall survival when in association with platinum-5-fluorouracil based ***,HER2 overexpression analysis acquired a main role in predict response for trastuzumab in this ***,we conducted a review that will discuss the main points concerning trastuzumab and HER2 in gastric cancer,providing a comprehensive overview of molecular mechanisms and novel trials involved.

关键词： Gastric cancer Human epidermal growth factor receptor 2 Biomarkers Target therapies Trastuzumab lapatinib Pertuzumab Trastuzumab-DM1 Afatinib

The structure of microbial populations in Nelore GIT reveals inter-dependency of methanogens in feces and rumen

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Journal of Animal Science and Biotechnology 2020年第2期11卷 577-586页

作者： Bruno G.N.andrade Flavia A.Bressani Rafael R.C.Cuadrat Polyana C.Tizioto Priscila S.N.de Oliveira Gerson B.Mourão luiz l.Coutinho James M.Reecy James E.Koltes Paul Walsh Alexandre Berndt Julio C.P.Palhares luciana C.A.Regitano Embrapa Southeast livestock São CarlosBrazil Department of Molecular Epidemiology German Institute of Human Nutrition Potsdam-Rehbrücke(DIfE)NuthetalGermany NGS Genomic Solutions PiracicabaBrazil Department of Animal Science University of São Paulo/ESALQPiracicabaBrazil Department of Animal Science Iowa State UniversityAmesIAUSA NSilico life Science DublinIreland

Background:The success of different species of ruminants in the colonization of a diverse range of environments is due to their ability to digest and absorb nutrients from cellulose,a complex polysaccharide found in leaves and *** rely on a complex and diverse microbial community,or microbiota,in a unique compartment known as the rumen to break down this *** in microbial populations of the rumen can affect the host’s development,health,and ***,accessing the rumen is stressful for the ***,the development and use of alternative sampling methods are needed if this technique is to be routinely used in cattle *** this end,we tested if the fecal microbiome could be used as a proxy for the rumen microbiome due to its *** investigated the taxonomic composition,diversity and inter-relations of two different GIT compartments,rumen and feces,of 26 Nelore(Bos indicus)bulls,using Next Generation Sequencing(NGS)metabarcoding of bacteria,archaea and ciliate ***:We identified 4265 Amplicon Sequence Variants(ASVs)from bacteria,571 from archaea,and 107 from protozoa,of which 143(96 bacteria and 47 archaea)were found common between both *** most prominent bacterial phyla identified were Bacteroidetes(41.48%)and Firmicutes(56.86%)in the ruminal and fecal microbiomes,respectively,with Prevotella and Ruminococcaceae UCG-005 the most relatively abundant genera identified in each *** most abundant archaeal phylum identified was Euryarchaeota,of which Methanobrevibacter gottschalkii,a methanogen,was the prevalent archaeal species identified in both *** were found exclusively identified in the rumen with Bozasella/Triplumaria being the most frequent genus ***-occurrence among ruminal and fecal ASVs reinforces the relationship of microorganisms within a biological ***,the co-occurrence of shared archaeal ASVs between microbiomes indicat

关键词： Archaea Bacteria Bos indicus Metabarcoding Methanobrevibacter Microbiome Microbiota