関: sensitive bacterium

WordNet

responsive to physical stimuli; "a mimosas leaves are sensitive to touch"; "a sensitive voltmeter"; "sensitive skin"; "sensitive to light"
hurting; "the tender spot on his jaw" (同)sore, raw, tender
being susceptible to the attitudes, feelings, or circumstances of others; "sensitive to the local community and its needs"
of or pertaining to classified information or matters affecting national security
(microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants (同)bacterium

PrepTutorEJDIC

(五感が)『敏感な』,感じやすい / 物事を非常に気にする,神経過敏な / 感光性の;(器械などが)感度のよい
『バクテリア』,細菌

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1. 嚢胞性線維症：肺疾患に対する抗菌薬療法 cystic fibrosis antibiotic therapy for lung disease
2. 本態性環境不耐性（多種化学物質過敏症）の概要 overview of idiopathic environmental intolerance multiple chemical sensitivity
3. 予防のためのエビデンスに基づいたアプローチ evidence based approach to prevention
4. 甲状腺ホルモンに対する感受性の傷害 impaired sensitivity to thyroid hormone
5. システマティックレビューおよびメタアナリシス systematic review and meta analysis

English Journal

Impact of shortwave ultraviolet (UV-C) radiation on the antioxidant activity of thyme (Thymus vulgaris L.).

Dogu-Baykut E1, Gunes G2, Decker EA3.Author information 1Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Ayazaga Campus, Maslak, 34469 Istanbul, Turkey; Department of Food Science, University of Massachusetts, Amherst, MA 01003, United States.2Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Ayazaga Campus, Maslak, 34469 Istanbul, Turkey.3Department of Food Science, University of Massachusetts, Amherst, MA 01003, United States. Electronic address: edecker@foodsci.umass.edu.AbstractThyme is a good source of antioxidant compounds but it can be contaminated by microorganisms. An experimental fluid bed ultraviolet (UV) reactor was designed for microbial decontamination of thyme samples and the effect of shortwave ultraviolet light (UV-C) radiation on antioxidant properties of thyme was studied. Samples were exposed to UV-C radiation for 16 or 64min. UV-C treatment led to 1.04 and 1.38logCFU/g reduction of total aerobic mesophilic bacteria (TAMB) counts. Hunter a(∗) value was the most sensitive colour parameter during UV-C treatment. 2,2-Diphenyl-1-picrylhydrazyl (DPPH) scavenging activity of extracts was not significantly affected by UV-C. Addition of thyme extracts at 0.15 and 0.3μmolGAE/ml emulsion delayed the formation of lipid hydroperoxides and headspace hexanal in the 5.0%(wt) corn oil-in-water emulsion from 4 to 9 and 14days, respectively. No significant changes in oxidation rates were observed between UV-C treated and untreated samples at same concentrations.
Food chemistry.Food Chem.2014 Aug 15;157:167-73. doi: 10.1016/j.foodchem.2014.02.027. Epub 2014 Feb 14.
Thyme is a good source of antioxidant compounds but it can be contaminated by microorganisms. An experimental fluid bed ultraviolet (UV) reactor was designed for microbial decontamination of thyme samples and the effect of shortwave ultraviolet light (UV-C) radiation on antioxidant properties of thy
PMID 24679766

High sensitive mesoporous TiO2-coated love wave device for heavy metal detection.

Gammoudi I1, Blanc L2, Moroté F3, Grauby-Heywang C3, Boissière C4, Kalfat R5, Rebière D2, Cohen-Bouhacina T3, Dejous C2.Author information 1Univ. Bordeaux, IMS, CNRS UMR 5218, IPB, Univ. Bordeaux 1, Talence, France; Univ. Bordeaux, LOMA, CNRS UMR 5798, 351 crs Libération, 33405 Talence, France; National Institute for Research and Physicochemical Analysis, BiotechPole, Sidi Thabet, Tunisia. Electronic address: ibtisem.gammoudi@u-bordeaux1.fr.2Univ. Bordeaux, IMS, CNRS UMR 5218, IPB, Univ. Bordeaux 1, Talence, France.3Univ. Bordeaux, LOMA, CNRS UMR 5798, 351 crs Libération, 33405 Talence, France.4LCMCP, Collège de France - CNRS-UMR 7574, Paris, France.5National Institute for Research and Physicochemical Analysis, BiotechPole, Sidi Thabet, Tunisia.AbstractThis work deals with the design of a highly sensitive whole cell-based biosensor for heavy metal detection in liquid medium. The biosensor is constituted of a Love wave sensor coated with a polyelectrolyte multilayer (PEM). Escherichia coli bacteria are used as bioreceptors as their viscoelastic properties are influenced by toxic heavy metals. The acoustic sensor is constituted of a quartz substrate with interdigitated transducers and a SiO2 guiding layer. However, SiO2 shows some degradation when used in a saline medium. Mesoporous TiO2 presents good mechanical and chemical stability and offers a high active surface area. Then, the addition of a thin titania layer dip-coated onto the acoustic path of the sensor is proposed to overcome the silica degradation and to improve the mass effect sensitivity of the acoustic device. PEM and bacteria deposition, and heavy metal influence, are real time monitored through the resonance frequency variations of the acoustic device. The first polyelectrolyte layer is inserted through the titania mesoporosity, favouring rigid link of the PEM on the sensor and improving the device sensitivity. Also, the mesoporosity of surface increases the specific surface area which can be occupied and favors the formation of homogeneous PEM. It was found a frequency shift near -20±1kHz for bacteria immobilization with titania film instead of -7±3kHz with bare silica surface. The sensitivity is highlighted towards cadmium detection. Moreover, in this paper, particular attention is given to the immobilization of bacteria and to biosensor lifetime. Atomic Force Microscopy characterizations of the biosurface have been done for several weeks. They showed significant morphological differences depending on the bacterial life time. We noticed that the lifetime of the biosensor is longer in the case of using a mesoporous TiO2 layer.
Biosensors & bioelectronics.Biosens Bioelectron.2014 Jul 15;57C:162-170. doi: 10.1016/j.bios.2013.12.024. Epub 2014 Jan 22.
This work deals with the design of a highly sensitive whole cell-based biosensor for heavy metal detection in liquid medium. The biosensor is constituted of a Love wave sensor coated with a polyelectrolyte multilayer (PEM). Escherichia coli bacteria are used as bioreceptors as their viscoelastic pro
PMID 24583687

In-situ fluorescent immunomagnetic multiplex detection of foodborne pathogens in very low numbers.

Cho IH1, Mauer L2, Irudayaraj J3.Author information 1Bindley Bioscience and Birck Nanotechnology Center, Department of Agricultural & Biological Engineering, Purdue University, West Lafayette, IN 47907, United States.2Department of Food Science, Purdue University, West Lafayette, IN 47907, United States.3Bindley Bioscience and Birck Nanotechnology Center, Department of Agricultural & Biological Engineering, Purdue University, West Lafayette, IN 47907, United States; Department of Food Science, Purdue University, West Lafayette, IN 47907, United States. Electronic address: josephi@purdue.edu.AbstractConsumption of foods contaminated with pathogenic bacteria is a major public health concern. Foods contain microorganisms, the overwhelming majority of which are nonpathogenic, some are responsible for food spoilage, and some cause serious illness leading to death or a variety of diseases in humans. The key challenge in food safety is to rapidly screen foods to determine the presence of pathogens so that appropriate intervention protocols can be pursued. A simple fluorometric immunological method in combination with a magnetic concentration step was developed for rapid detection of target bacteria with high sensitivity and specificity in less than 2h without enumeration. The method constitutes performing an in-situ immunoassay on a magnetic bead through the formation of a sandwich complex of the target bacteria and the probe (detection antibody-denatured BSA labelled with fluorophores) followed by the release of fluorophores by means of enzymatic digestion with proteinase K. The limit of detection (LOD) was <5CFU/mL of the tested pathogens (Escherichia coli O157:H7, Salmonella typhimurium, and Listeria monocytogenes) in buffer. When the pathogens were inoculated in foods (spinach, chicken, and milk), the LOD was under 5CFU/mL for E. coli O157:H7, S. typhimurium and L. monocytogenes. Furthermore, the method was highly specific in detecting the target pathogens in a multiplex format. The developed in-situ fluorescent immunomagnetic sensor approach offers distinct advantages because it is rapid, highly sensitive, and easy to use and could therefore be potentially used as a pathogen screening tool.
Biosensors & bioelectronics.Biosens Bioelectron.2014 Jul 15;57:143-8. doi: 10.1016/j.bios.2014.02.012. Epub 2014 Feb 19.
Consumption of foods contaminated with pathogenic bacteria is a major public health concern. Foods contain microorganisms, the overwhelming majority of which are nonpathogenic, some are responsible for food spoilage, and some cause serious illness leading to death or a variety of diseases in humans.
PMID 24583684

Japanese Journal

Single-Molecule Analysis of the Rotation of F1-ATPase under High Hydrostatic Pressure

Okuno Daichi,Nishiyama Masayoshi,Noji Hiroyuki
Biophysical Journal 105(7), 1635-1642, 2013-10-01
… In this study, we conducted a single-molecule rotation assay of F1 from thermophilic bacteria under various pressures from 0.1 to 140 MPa. … The pause was observed under both ATP-limiting and ATP-saturating conditions, suggesting that F1 has two pressure-sensitive reactions, one of which is evidently ATP binding. … The rotation assay using a mutant F1(βE190D) suggested that the other pressure-sensitive reaction occurs at the same angle at which ATP binding occurs. …
NAID 120005328380

A high-sensitive and non-radioisotopic fluorescence dye method for evaluating bacterial adhesion to denture materials

SAKUMA Yoko,WASHIO Jumpei,SASAKI Keiichi,TAKAHASHI Nobuhiro
Dental Materials Journal 32(4), 585-591, 2013
… Oral bacteria adhered to dental material surfaces are known to cause various oral diseases. … This study aimed to develop a highsensitive and non-radioisotopic fluorescence dye method for quantification of oral bacteria (Streptococcus, Actinomyces and Veillonella) adhered to denture material surfaces. … The amount of adhered bacteria was estimated from the fluorescence intensity derived from resazurin, which is reduced by bacterial metabolic reactions. …
NAID 130003371106

Successful Management of Multidrug-Resistant Pseudomonas aeruginosa Pneumonia after Kidney Transplantation in a Dog

PARK Kyung-Mee,NAM Hyun-Suk,WOO Heung-Myong
Journal of Veterinary Medical Science, 2013
… Pneumonia due to infection with multidrug-resistant (MDR) Pseudomonas (P.) aeruginosa, sensitive only to imipenem and amikacin, was confirmed by bacteria isolation. …
NAID 130003362248