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https://www.readbyqxmd.com/read/29290346/predictive-factors-of-catheter-related-bloodstream-infection-in-patients-receiving-home-parenteral-nutrition
#1
Orawan Pichitchaipitak, Sineenuch Ckumdee, Siriluk Apivanich, Darunee Chotiprasitsakul, Prapimporn Chattranukulchai Shantavasinkul
OBJECTIVES: The aim of this study was to determine the incidence and predictive factors of catheter-related bloodstream infections (CRBSIs) acquired through a central venous catheter for delivery of home parenteral nutrition (HPN) therapy among a patient population in Thailand. METHODS: This retrospective review was conducted with adult patients with intestinal failure who received HPN from October 2002 to April 2014, at Ramathibodi Home Parenteral and Enteral Nutrition Referral Center in Bangkok...
February 2018: Nutrition
https://www.readbyqxmd.com/read/29283318/surgical-smoke-control-with-local-exhaust-ventilation-experimental-study
#2
Taekhee Lee, Jhy-Charm Soo, Ryan F LeBouf, Dru Burns, Diane Schwegler-Berry, Michael Kashon, Jay Bowers, Martin Harper
This experimental study aimed to evaluate airborne particulates and volatile organic compounds (VOCs) from surgical smoke when a local exhaust ventilation (LEV) system is in place. Surgical smoke was generated from human tissue in an unoccupied operating room using an electrocautery surgical device for 15 minutes with three different test settings; 1) without LEV control, 2) control with a wall irrigation suction unit with an in-line ultra-low penetration air filter and 3) control with a smoke evacuation system...
December 28, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/29259272/shear-assisted-production-of-few-layer-boron-nitride-nanosheets-by-supercritical-co2-exfoliation-and-its-use-for-thermally-conductive-epoxy-composites
#3
Xiaojuan Tian, Yun Li, Zhuo Chen, Qi Li, Liqiang Hou, Jiaye Wu, Yushu Tang, Yongfeng Li
Boron nitride nanosheets (BNNS) hold the similar two-dimensional structure as graphene and unique properties complementary to graphene, which makes it attractive in application ranging from electronics to energy storage. The exfoliation of boron nitride (BN) still remains challenge and hinders the applications of BNNS. In this work, the preparation of BNNS has been realized by a shear-assisted supercritical CO2 exfoliation process, during which supercritical CO2 intercalates and diffuses between boron nitride layers, and then the exfoliation of BN layers is obtained in the rapid depressurization process by overcoming the van der Waals forces...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29219217/environmentally-friendly-solvent-processed-organic-solar-cells-that-are-highly-efficient-and-adaptable-for-the-blade-coating-method
#4
Wenchao Zhao, Shaoqing Zhang, Yun Zhang, Sunsun Li, Xiaoyu Liu, Chang He, Zhong Zheng, Jianhui Hou
The power conversion efficiencies (PCEs) of state-of-the-art organic solar cells (OSCs) have increased to over 13%. However, the most commonly used solvents for making the solutions of photoactive materials and the coating methods used in laboratories are not adaptable for future practical production. Therefore, taking a solution-coating method with environmentally friendly processing solvents into consideration is critical for the practical utilization of OSC technology. In this study, a highly efficient PBTA-TF:IT-M-based device processed with environmentally friendly solvents, tetrahydrofuran/isopropyl alcohol (THF/IPA) and o-xylene/1-phenylnaphthalene, is fabricated; a high PCE of 13...
December 8, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29204927/augmented-bioavailability-of-felodipine-through-an-%C3%AE-linolenic-acid-based-microemulsion
#5
Mahendra Singh, Jovita Kanoujia, Poonam Parashar, Malti Arya, Chandra B Tripathi, V R Sinha, Shailendra K Saraf, Shubhini A Saraf
The oral bioavailability of felodipine, a dihydropyridine calcium channel antagonist, is about 15%. This may be due to poor water solubility, and a lower intestinal permeability than a BCS class I drug, and hepatic first-pass metabolism of the drug. Many drugs are unpopular due to solubility issues. The goal of this study was to develop and optimize a felodipine-containing microemulsion to improve the intestinal permeability and bioavailability of the drug. The felodipine microemulsions were developed with the selected components, i...
December 4, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/29171793/preoperative-skin-antisepsis-with-chlorhexidine-gluconate-versus-povidone-iodine-a-prospective-analysis-of-6959-consecutive-spinal-surgery-patients
#6
George M Ghobrial, Michael Y Wang, Barth A Green, Howard B Levene, Glen Manzano, Steven Vanni, Robert M Starke, George Jimsheleishvili, Kenneth M Crandall, Marina Dididze, Allan D Levi
OBJECTIVE The aim of this study was to determine the efficacy of 2 common preoperative surgical skin antiseptic agents, ChloraPrep and Betadine, in the reduction of postoperative surgical site infection (SSI) in spinal surgery procedures. METHODS Two preoperative surgical skin antiseptic agents-ChloraPrep (2% chlorhexidine gluconate and 70% isopropyl alcohol) and Betadine (7.5% povidone-iodine solution)-were prospectively compared across 2 consecutive time periods for all consecutive adult neurosurgical spine patients...
November 24, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29127055/fractionation-separation-of-human-plasma-proteins-using-hplc-with-a-homemade-iron-porphyrin-based-monolithic-column
#7
Doudou Zhang, Yu Zhao, Dandan Lan, Xiaomin Pang, Ligai Bai, Haiyan Liu, Hongyuan Yan
In this work a polymer monolithic column was fabricated within the confines of a stainless steel column (50×4.6mm i.d.) via radical polymerization by using iron porphyrin and butyl methacrylate as co-monomers, ethylene glycol dimethacrylate as crosslinking agent, ethylene glycol, isopropyl alcohol and N, N-dimethylformamide as tri-porogens, benzoyl peroxide and N,N-dimethylaniline as initiators. The resulting monolithic column was characterized by elemental analysis, scanning electron microscopy, nitrogen adsorption BET surface area, and mercury intrusion porosimetry, respectively...
November 4, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29114901/allergic-contact-dermatitis-caused-by-calcipotriol
#8
Liesbeth Gilissen, Sara Huygens, An Goossens
BACKGROUND: Calcipotriol, a synthetic vitamin D analogue, is widely used for the topical treatment of psoriasis. It often causes irritant reactions, whereas allergic contact dermatitis has less commonly been reported. OBJECTIVES: To report on 6 patients (among them an 11-year-old child) who presented with eczematous lesions complicating pre-existing dermatitis, observed in our tertiary referral patch test clinic between 2004 and 2016. METHODS: Patch tests were performed with the commercial preparation used by the patients and/or its ingredients, including calcipotriol (2 or 10 µg/ml in isopropyl alcohol), according to ESCD patch test guidelines...
November 8, 2017: Contact Dermatitis
https://www.readbyqxmd.com/read/29109746/comparative-evaluation-of-root-canal-morphology-of-mandibular-premolars-using-clearing-and-cone-beam-computed-tomography
#9
Abbasali Khademi, Mojdeh Mehdizadeh, Maryam Sanei, Hamidreza Sadeqnejad, Saber Khazaei
Background: Different techniques are used to evaluate the anatomy of root canal system. The present study was aimed to evaluate the root canal morphology of mandibular premolars using clearing and cone beam computed tomography (CBCT) techniques. Materials and Methods: A total of 182 mandibular first and second premolars were evaluated in vitro using 100 μm CBCT cross sections. The root canal morphology of the teeth was determined based on Vertucci classification in relation to the prevalence of C-shaped canals, lateral canals, and furcation location...
September 2017: Dental Research Journal
https://www.readbyqxmd.com/read/29096550/optimization-of-nutraceutical-coenzyme-q10-nanoemulsion-with-improved-skin-permeability-and-anti-wrinkle-efficiency
#10
Eman S El-Leithy, Amna M Makky, Abeer M Khattab, Doaa G Hussein
Coenzyme Q10 (CoQ10) is an insoluble, poorly permeable antioxidant with great biological value which acts as anti-aging and anti-wrinkle agent. To improve its permeability through topical application, the current study aimed at formulating oil/water (o/w) nanoemulsion (NE) as an efficient vehicle for delivering (CoQ10) through the skin barriers. The solubility of (CoQ10) was tested for various oils, surfactants (S), and co-surfactants (CoS). The NE region was determined by constructing pseudoternary phase diagrams...
November 2, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/29074717/2-chlorhexidine-70-isopropyl-alcohol-versus-10-povidone-iodine-for-insertion-site-cleaning-before-central-line-insertion-in-preterm-infants-a-randomised-trial
#11
Emily A Kieran, Anne O'Sullivan, Jan Miletin, Anne R Twomey, Susan J Knowles, Colm Patrick Finbarr O'Donnell
OBJECTIVE: To determine whether 2% chlorhexidine gluconate-70% isopropyl alcohol (CHX-IA) is superior to 10% aqueous povidone-iodine (PI) in preventing catheter-related blood stream infection (CR-BSI) when used to clean insertion sites before placing central venous catheters (CVCs) in preterm infants. DESIGN: Randomised controlled trial. SETTING: Two neonatal intensive care units (NICUs). PATIENTS: Infants <31 weeks' gestation who had a CVC inserted...
October 26, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/29071228/assay-of-desmopressin-acetate-in-nasal-spray-development-of-validated-pre-column-hplc-fluorescence-method
#12
Neeraj Upmanyu, Pawan Kumar Porwal
Purpose: Desmopressin acetate (DDAPV), a synthetic analogue of vasopressin, has been recommended to be used in diabetes insipidus, mild forms of hemophilia and Von Willebrand disease. The DDAPV is available for adminstration via different routes viz. oral, parenteral and nasal, however its dose is very less in case of nasal sprays (20 µg) and parenteral route (4 µg) compared to oral route (0.1 to 0.3 mg in tablet). A sensitive and selective method is needed to be developed and validated for assay of low concentrations of DDAPV in its pharmaceutical dosage form i...
September 2017: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28966560/crystal-nucleation-using-surface-energy-modified-glass-substrates
#13
Kyle A Nordquist, Kevin M Schaab, Jierui Sha, Andrew H Bond
Systematic surface energy modifications to glass substrates can induce nucleation and improve crystallization outcomes for small molecule active pharmaceutical ingredients (APIs) and proteins. A comparatively broad probe for function is presented in which various APIs, proteins, organic solvents, aqueous media, surface energy motifs, crystallization methods, form factors, and flat and convex surface energy modifications were examined. Replicate studies (n ≥ 6) have demonstrated an average reduction in crystallization onset times of 52(4)% (alternatively 52 ± 4%) for acetylsalicylic acid from 91% isopropyl alcohol using two very different techniques: bulk cooling to 0 °C using flat surface energy modifications or microdomain cooling to 4 °C from the interior of a glass capillary having convex surface energy modifications that were immersed in the solution...
August 2, 2017: Crystal Growth & Design
https://www.readbyqxmd.com/read/28963158/antisepsis-of-the-skin-before-spinal-surgery-with-povidone-iodine-alcohol-followed-by-chlorhexidine-gluconate-alcohol-versus-povidone-iodine-alcohol-applied-twice-for-the-prevention-of-contamination-of-the-wound-by-bacteria-a-randomised-controlled-trial
#14
RANDOMIZED CONTROLLED TRIAL
S Patrick, A McDowell, A Lee, A Frau, U Martin, E Gardner, G McLorinan, N Eames
AIMS: The aim of this study was to determine whether the sequential application of povidone iodine-alcohol (PVI) followed by chlorhexidine gluconate-alcohol (CHG) would reduce surgical wound contamination to a greater extent than PVI applied twice in patients undergoing spinal surgery. PATIENTS AND METHODS: A single-centre, interventional, two arm, parallel group randomised controlled trial was undertaken, involving 407 patients who underwent elective spinal surgery...
October 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28952727/cyanido-bridged-ln-iii-w-v-heterobinuclear-complexes-synthesis-and-magneto-structural-study
#15
Maria-Gabriela Alexandru, Diana Visinescu, Sergiu Shova, Francesc Lloret, Miguel Julve
A new series of cyanido-bridged {Ln(III)W(V)} heterobinuclear complexes of formula [Ln(III)(pyim)2(i-PrOH)(H2O)2(μ-CN)W(V)(CN)7]·2H2O [Ln = Gd (1), Tb (2), Dy (3), Ho (4), and Er (5); pyim = 2-(1H-imidazol-2-yl)-pyridine) and i-PrOH = isopropyl alcohol] were synthesized by one-pot reaction between (NH3Bu)3[W(CN)8] and [Ln(pyim)2](2+) complexes (generated in situ by mixing the corresponding Ln(III) ions and the pyim ligand). Compounds 1-5 are isomorphous and crystallize in the monoclinic system P21/n space group...
September 27, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28946506/the-effect-of-ultrasonic-vibration-and-surfactant-additive-on-fabrication-of-53-5gr-mm-silicon-echelle-grating-with-low-surface-roughness-in-alkaline-koh-solution
#16
Qingbin Jiao, Chunlin Zhu, Xin Tan, Xiangdong Qi, Bayanheshig
In the silicon echelle grating fabrication process, the "pseudo-mask" formed by the hydrogen bubbles generated during the etching process is the reason causing high surface roughness and poor surface quality of blazed plane. Based upon the ultrasonic mechanical effect and contact angle reduced by surfactant additive, ultrasonic vibration, isopropyl alcohol (IPA) and 2,4,7,9-Tetramethyl-5-decyne-4,7-diol (TMDD) were used to improve surface quality of 53.5gr/mm echelle grating. The surface roughness Rq is smaller than 18nm, 7nm and 2nm when using ultrasonic vibration, IPA and TMDD respectively...
January 2018: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28927272/nonaqueous-sol-gel-synthesis-of-anatase-nanoparticles-and-their-electrophoretic-deposition-in-porous-alumina
#17
Cédric Frantz, Alessandro Lauria, Cristina V Manzano, Carlos Guerra-Nuñez, Markus Niederberger, Cédric Storrer, Johann Michler, Laetitia Philippe
Titanium dioxide (TiO2) nanoparticles were synthesized by nonaqueous sol-gel route using titanium tetrachloride and benzyl alcohol as the solvent. The obtained 4 nm-sized anatase nanocrystals were readily dispersible in various polar solvents allowing for simple preparation of colloidal dispersions in water, isopropyl alcohol, dimethyl sulfoxide, and ethanol. Results showed that dispersed nanoparticles have acidic properties and exhibit positive zeta-potential which is suitable for their deposition by cathodic electrophoresis...
October 10, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28913006/uhplc-pda-assay-for-simultaneous-determination-of-vitamin-d3-and-menaquinone-7-in-pharmaceutical-solid-dosage-formulation
#18
Muhammad Jehangir, Mahmood Ahmed, Muhammad Imtiaz Shafiq, Abdul Samad, Iftikhar-Ul-Haq
A newly developed method based on ultrahigh performance liquid chromatography (UHPLC) was optimized for the simultaneous determination of vitamin D3 and menaquinone-7 (MK-7) in tablet formulation in the present study. UHPLC separation of vitamin D3 and MK-7 was performed with ACE Excel 2 C18-PFP column (2 μm, 2.1 × 100 mm) at 0.6 mL min(-1) flow rate, whereas the mobile phase consisted of methanol/water (19 : 1, v/v, phase A) and isopropyl alcohol (99.9%, phase B) containing 0.5% triethylamine. Isocratic separation of both the analytes was performed at 40°C by pumping the mobile phases A and B in the ratio of 50 : 50 (v/v, pH, 6...
2017: Journal of Analytical Methods in Chemistry
https://www.readbyqxmd.com/read/28905380/enhancing-blood-donor-skin-disinfection-using-natural-oils
#19
Meshari Alabdullatif, Imen Boujezza, Mohamed Mekni, Mariam Taha, Dilini Kumaran, Qi-Long Yi, Ahmed Landoulsi, Sandra Ramirez-Arcos
BACKGROUND: Effective donor skin disinfection is essential in preventing bacterial contamination of blood components with skin flora bacteria like Staphylococcus epidermidis. Cell aggregates of S. epidermidis (biofilms) are found on the skin and are resistant to the commonly used donor skin disinfectants chlorhexidine-gluconate and isopropyl alcohol. It has been demonstrated that essential oils synergistically enhance the antibacterial activity of chlorhexidine-gluconate. The objective of this study was to test plant-extracted essential oils in combination with chlorhexidine-gluconate or chlorhexidine-gluconate plus isopropyl alcohol for their ability to eliminate S...
September 14, 2017: Transfusion
https://www.readbyqxmd.com/read/28903829/quantification-of-induced-hypothermia-from-aseptic-scrub-applications-during-rodent-surgery-preparation
#20
Anna M Skorupski, Jingyi Zhang, Danielle Ferguson, Frank Lawrence, F Claire Hankenson
Laboratory mice (Mus musculus) are prone to develop hypothermia during anesthesia for surgery, thus potentially impeding anesthetic recovery, wound healing, and future health. The core body temperatures of isoflurane-anesthetized mice are influenced by the choice of supplemental heat sources; however, the contribution of various surgical scrubs on the body temperatures of mice under gas anesthesia has not been assessed. We sought to quantify the effect of using alcohol (70% isopropyl alcohol [IPA]) compared with saline to rinse away surgical scrub on the progression of hypothermia in anesthetized mice (n = 47)...
September 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
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