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Selective decontamination

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https://www.readbyqxmd.com/read/28724312/in-vitro-skin-decontamination-of-paraoxon-wet-type-cleansing-effect-of-selected-detergents
#1
Ruzena Pavlikova, Jan Misik, Jiri Cabal, Jan Marek, Kamil Kuca
The aim of this study was to determine optimal conditions for in vitro skin decontamination using water and detergents as decontamination agents and to test the cleansing efficiency of selected detergents. Experiments were performed using a peristaltic pump for showering of pig skin in modified static diffision cells. Several conditions were tested including different flow rates (from 5 to 33 ml.s(-1)), quantity of rinsing fluid (from 40 to 400 ml), and concentration of detergents (2; 5; 10%). Further, several types of detergents/commercial decontamination agents were evaluated under the selected conditions to find the most effective means of decontamination...
July 20, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28702037/transcriptomic-response-of-purple-willow-salix-purpurea-to-arsenic-stress
#2
Aymeric Yanitch, Nicholas J B Brereton, Emmanuel Gonzalez, Michel Labrecque, Simon Joly, Frederic E Pitre
Arsenic (As) is a toxic element for plants and one of the most common anthropogenic pollutants found at contaminated sites. Despite its severe effects on plant metabolism, several species can accumulate substantial amounts of arsenic and endure the associated stress. However, the genetic mechanisms involved in arsenic tolerance remains obscure in many model plant species used for land decontamination (phytoremediation), including willows. The present study assesses the potential of Salix purpurea cv. 'Fish Creek' for arsenic phytoextraction and reveals the genetic responses behind arsenic tolerance, phytoextraction and metabolism...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28701019/decontamination-of-mikania-glomerata-leaves-by-gamma-irradiation-coumarin-determination-by-hplc-dad-microbiological-control-and-genotoxicological-studies
#3
Marcos Martins Gouvêa, Samara Cristina Ferreira-Machado, Thalita Martins da Silva, Julien Silva Lima Lima, Cláudio Sérgio Corrêa Lau, Luciana Maria Ramires Esper, Samanta Cardozo Mourão, Elizabeth Valverde Macedo, Helio de Carvalho Vital, Edson Ramos Andrade, Annibal Duarte Pereira Netto, Flávia Ferreira de Carvalho Marques, Carlos Augusto de Freitas Peregrino
Gamma irradiation as a decontaminating physical agent could be an important tool in the production chain of herbal medicines by improving the microbiological quality of raw materials and the safety of final products. This study was undertaken to investigate the genotoxic potential and eventual chemical modifications of a batch of Mikania glomerata raw material decontaminated by different doses of gamma irradiation (2.0, 3.5, and 5.0 kGy), using a cesium-137 source. DNA damage was assessed in vitro by agarose gel electrophoresis in regard to double-chain breaks of plasmid pUC 9...
July 12, 2017: Planta Medica
https://www.readbyqxmd.com/read/28675844/treatment-of-radioactive-liquid-effluents-by-reverse-osmosis-membranes-from-lab-scale-to-pilot-scale
#4
Nicolas Combernoux, Luc Schrive, Véronique Labed, Yvan Wyart, Emilie Carretier, Philippe Moulin
The recent use of the reverse osmosis (RO) process at the damaged Fukushima-Daiichi nuclear power plant generated a growing interest in the application of this process for decontamination purposes. This study focused on the development of a robust RO process for decontamination of two kinds of liquid effluents: a contaminated groundwater after a nuclear disaster and a contaminated seawater during a nuclear accident. The SW30 HR membrane was selected among other in this study due to higher retentions (96% for Cs and 98% for Sr) in a true groundwater...
June 24, 2017: Water Research
https://www.readbyqxmd.com/read/28672227/pyrimethanil-degradation-by-photo-fenton-process-influence-of-iron-and-irradiance-level-on-treatment-cost
#5
A Cabrera Reina, S Miralles-Cuevas, J L Casas López, J A Sánchez Pérez
This study evaluates the combined effect of photo-catalyst concentration and irradiance level on photo-Fenton efficiency when this treatment is applied to industrial wastewater decontamination. Three levels of irradiance (18, 32 and 46W/m(2)) and three iron concentrations (8, 20 and 32mg/L) were selected and their influence over the process studied using a raceway pond reactor placed inside a solar box. For 8mg/L, it was found that there was a lack of catalyst to make use of all the available photons. For 20mg/L, the treatment always improved with irradiance indicating that the process was photo-limited...
June 30, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28654114/functionalized-metal-organic-frameworks-for-effective-capture-of-radioactive-organic-iodides
#6
Baiyan Li, Xinglong Dong, Hao Wang, Dingxuan Ma, Kui Tan, Zhan Shi, Yves J Chabal, Yu Han, Jing Li
Highly efficient capture of radioactive organic iodides (ROIs) from off-gas mixtures remains a substantial challenge for nuclear waste treatment. Current materials utilized for ROI sequestration suffer from low capacity, high cost (e.g. use of noble metals), and poor recyclability. Recently, we have developed a new strategy to tackle this challenge by functionalizing MOF materials with tertiary amines to create molecular traps for the effective capture and removal of ROIs (e.g. radioactive methyl iodide) from nuclear wastes...
June 27, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28651304/rifaximin-and-propranolol-combination-therapy-is-more-effective-than-propranolol-monotherapy-for-the-reduction-of-portal-pressure-an-open-randomized-controlled-pilot-study
#7
Yoo Li Lim, Moon Young Kim, Yoon Ok Jang, Soon Koo Baik, Sang Ok Kwon
Background/Aims: Non-selective beta blockers (NSBBs) are currently the only accepted regimen for preventing portal hypertension (PHT)-related complications. However, the effect of NSBBs is insufficient in many cases. Bacterial translocation (BT) is one of the aggravating factors of PHT in cirrhosis; therefore, selective intestinal decontamination by rifaximin is a possible therapeutic option for improving PHT. We investigated whether the addition of rifaximin to propranolol therapy can improve hepatic venous pressure gradient (HVPG) response...
June 27, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28638595/use-of-90-ethanol-to-decontaminate-stethoscopes-in-resource-limited-settings
#8
Bijendra Raj Raghubanshi, Supriya Sapkota, Arjab Adhikari, Aman Dutta, Utsuk Bhattarai, Rastriyata Bhandari
BACKGROUND: In developing countries like Nepal, 90% ethanol is cheap and is available in most hospitals. The unavailability of isopropyl alcohol (IPA) in these settings led us to compare the efficacy between 90% ethanol and isopropyl alcohol pads in reducing the bacterial contamination of diaphragm of stethoscope. METHODS: A randomized blinded experimental study was carried out to determine the difference between cleaning stethoscopes with 90% ethanol and IPA. Cultures of diaphragm were taken before and after cleaning with one of the cleaning agent...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28616203/reduced-rate-of-intensive-care-unit-acquired-gram-negative-bacilli-after-removal-of-sinks-and-introduction-of-water-free-patient-care
#9
Joost Hopman, Alma Tostmann, Heiman Wertheim, Maria Bos, Eva Kolwijck, Reinier Akkermans, Patrick Sturm, Andreas Voss, Peter Pickkers, Hans Vd Hoeven
BACKGROUND: Sinks in patient rooms are associated with hospital-acquired infections. The aim of this study was to evaluate the effect of removal of sinks from the Intensive Care Unit (ICU) patient rooms and the introduction of 'water-free' patient care on gram-negative bacilli colonization rates. METHODS: We conducted a 2-year pre/post quasi-experimental study that compared monthly gram-negative bacilli colonization rates pre- and post-intervention using segmented regression analysis of interrupted time series data...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28613818/efficient-removal-of-anionic-radioactive-pollutant-from-water-using-ordered-urea-functionalized-mesoporous-polymeric-nanoparticle
#10
Jian Shen, Wei Chai, Kaixuan Wang, Fang Zhang
A urea-functionalized ordered mesoporous polymeric nanoparticle for removing the perrhenate anion ReO4(-) as the surrogate of the particularly intractable anion radioactive pollutant TcO4(-) was demonstrated in the present study. This nanomaterial (denoted as urea-MPN) was produced for the first time by a surfactant-directed urea-phenol-formaldehyde resol oligomers self-assembly protocol under hydrothermal condition. The obtained urea-MPN possessed the uniform nanosized spherical morphology with a 3D interconnected ordered cubic mesoporous structure...
July 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28607344/surviving-sepsis-campaign-guidelines-2016-omission-of-selective-decontamination-of-the-digestive-tract-deprives-patients-of-a-level-2b-therapy
#11
Luciano Silvestri, Hendrick K van Saene, Johannes H Rommes, Andy J Petros, Miguel A de la Cal, Julian F Bion
No abstract text is available yet for this article.
June 12, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28581334/heat-tolerances-of-salmonella-cronobacter-sakazakii-and-pediococcus-acidilactici-inoculated-into-galactooligosaccharide
#12
Jihyun Bang, Moonkak Choi, Haeseok Jeong, Sangseob Lee, Yoonbin Kim, Jee-Hoon Ryu, Hoikyung Kim
Food-grade galactooligosaccharide (GOS) with low water activity (aw of ca. 0.7) is used as an ingredient in various foods. We evaluated heat tolerances of Salmonella, Cronobacter sakazakii, and Pediococcus acidilactici at temperatures (70 to 85°C) used during the saturation process of GOS by comparing decimal reduction time (D-values) and thermal resistance constants (z-values). To determine the D- and z-values, GOS containing Salmonella (5.1 to 5.8 log CFU/g) or C. sakazakii (5.3 to 5.9 log CFU/g) was heat treated at 70, 77...
June 3, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28552350/ultrasound-assisted-advanced-oxidation-processes-for-water-decontamination
#13
Nilsun H Ince
The study reflects a part of my experience in sonochemistry and ultrasound-assisted advanced oxidation processes (AOPs) acquired during the last fifteen years with my research team. The data discussed were selected from studies with azo dyes, endocrine disrupting compounds and analgesic/anti-inflammatory pharmaceuticals, which are all classified as "hazardous" or "emerging" contaminants. The research focused on their treatability by ultrasound (US) and AOPs with emphasis on the mineralization of organic carbon...
April 9, 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28516493/diagnosis-and-treatment-of-dermatophytosis-in-dogs-and-cats-clinical-consensus-guidelines-of-the-world-association-for-veterinary-dermatology
#14
REVIEW
Karen A Moriello, Kimberly Coyner, Susan Paterson, Bernard Mignon
BACKGROUND: Dermatophytosis is a superficial fungal skin disease of cats and dogs. The most common pathogens of small animals belong to the genera Microsporum and Trichophyton. It is an important skin disease because it is contagious, infectious and can be transmitted to people. OBJECTIVES: The objective of this document is to review the existing literature and provide consensus recommendations for veterinary clinicians and lay people on the diagnosis and treatment of dermatophytosis in cats and dogs...
June 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28516472/nasal-decontamination-for-the-prevention-of-surgical-site-infection-in-staphylococcus-aureus-carriers
#15
REVIEW
Zhenmi Liu, Gill Norman, Zipporah Iheozor-Ejiofor, Jason Kf Wong, Emma J Crosbie, Peter Wilson
BACKGROUND: Surgical site infection rates in the month following surgery vary from 1% to 5%. Due to the large number of surgical procedures conducted annually, the costs of these surgical site infections (SSIs) can be considerable in financial and social terms. Nasal decontamination using antibiotics or antiseptics is performed to reduce the risk of SSIs by preventing organisms from the nasal cavity being transferred to the skin where a surgical incision will be made. Staphylococcus aureus (S aureus) colonises the nasal cavity and skin of carriers and can cause infection in open or unhealed surgical wounds...
May 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28511502/comparative-evaluation-of-three-herbal-solutions-on-the-disinfection-of-guttapercha-cones-an-in-vitro-study
#16
Pratap Kumar Mukka, Samba Shiva Rao Pola, Nanda Kumar Kommineni, Mayuri Sailaja Pachalla, Anand Ramtheerth Karne, Karthik Labishetty, Supriya Kommineni, Praveen Chilakabathini
INTRODUCTION: Guttapercha (GP) cones are usually supplied in aseptic, sealed packages from the manufacturers, but once exposed to the dental office environment or even by handling; they can be contaminated by a number of microorganisms. Supplementary decontamination of GP cones is critical. As they cannot be sterilized by moist or dry heat, cold sterilization, using disinfectants should be used. AIM: The aim of the study was to evaluate rapid, reliable, convenient and effective method of disinfection of GP cones using readily available herbal solutions such as Aloevera Juice, Amla Juice and Pancha Tulsi...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28485972/nanocomposite-deposited-membrane-for-oil-in-water-emulsion-separation-with-in-situ-removal-of-anionic-dyes-and-surfactants
#17
Na Liu, Qingdong Zhang, Ruixiang Qu, Weifeng Zhang, Haifang Li, Yen Wei, Lin Feng
The decontamination of various pollutants including oils, organic dyes and surfactants from water is an unprecedented issue throughout the world. A facile filtration process for in situ multifunctional water purification by employing a low-cost and easy-made catechol-PEI nanocomposite deposited membrane has been designed. In combination with the intrinsic hydrophilicity of amino-rich groups, the resultant membrane possesses superhydrophilicity and underwater superoleophobicity, which is simultaneously advantageous for capturing anionic pollutants due to the electrostatic interaction...
May 9, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28439262/turn-up-the-heat-food-and-clinical-escherichia-coli-isolates-feature-two-transferrable-loci-of-heat-resistance
#18
Erik J Boll, Roger Marti, Henrik Hasman, Søren Overballe-Petersen, Marc Stegger, Kim Ng, Susanne Knøchel, Karen A Krogfelt, Joerg Hummerjohann, Carsten Struve
Heat treatment is a widely used process to reduce bacterial loads in the food industry or to decontaminate surfaces, e.g., in hospital settings. However, there are situations where lower temperatures must be employed, for instance in case of food production such as raw milk cheese or for decontamination of medical devices such as thermo-labile flexible endoscopes. A recently identified locus of heat resistance (LHR) has been shown to be present in and confer heat resistance to a variety of Enterobacteriaceae, including Escherichia coli isolates from food production settings and clinical ESBL-producing E...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28437719/matrix-assisted-laser-desorption-ionization-mass-spectrometric-imaging-of-olanzapine-in-a-single-hair-using-esculetin-as-a-matrix
#19
Hang Wang, Ying Wang, Ge Wang, Lizhi Hong
Matrix-assisted laser desorption/ionization-mass spectrometric imaging (MALDI-MSI) for the analysis of intact hair is a powerful tool for monitoring changes in drug consumption. The embedding of a low drug concentration in the hydrophobic hair matrix makes it difficult to extract and detect, and requires an improved method to increase detection sensitivity. In this study, an MSI method using MALDI-Fourier transform ion cyclotron resonance was developed for direct identification and imaging of olanzapine in hair samples using the positive ion mode...
April 18, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28402176/identification-of-bacterial-contaminants-from-calcium-carbonate-filler-production-lines-and-an-evaluation-of-biocide-based-decontamination-procedures
#20
Duško Odić, Jana Prah, Gorazd Avguštin
The aim of this study was to analyze the bacterial community in the production line of a calcium carbonate filler production company and to investigate possible causes for bacterial presence. Throughout 2012, 24 carbonate slurry and six groundwater samples were analyzed. Pseudomonas and Microbacterium were the most frequent contaminants in the slurry, whereas Pseudomonas and Brevundimonas dominated the groundwater samples. Of the 43 different bacterial strains isolated, only five were found both in the slurry and the groundwater, indicating that the latter was not a major source of contamination...
April 2017: Biofouling
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