The aim of the present study was to test this hypothesis by studying the eating behavior, metabolic changes, and glucagon-like peptide-1 (GLP-1)-producing cells in rat models.

Male Sprague-Dawley PXD101 rats were subjected to laparotomy, II, SG, or II-SG. Eating behavior and metabolic parameters were monitored by an open-circuit indirect calorimeter designed for a comprehensive laboratory animal monitoring system. GLP-1-producing

cells were examined by quantitative immunohistochemistry.

After II alone, satiety ratio, i.e., intermeal interval/meal size, was reduced, while calorie intake was increased at 2 and 6 weeks postoperatively. Respiratory exchange ratio, VCO2/VO2, was increased to above 1.0 (i.e., carbohydrate metabolism) during both daytime and nighttime at 2 weeks postoperatively. After SG alone, GLP-1-producing cells were increased in the pancreatic islets (in terms of volume density),

but not in the ileum (number/mm). After II-SG, the rate of eating was reduced, while meal duration (min) was increased during both daytime and nighttime at 2 weeks postoperatively. GLP-1-producing cells were increased by about 2.5-fold in the interposed ileum and also increased to the same extent in the pancreatic islets as seen after SG alone. The increased GLP-1-producing cells in the pancreatic islets after SG or II-SG were located around the insulin-producing beta cells.

The present https://www.selleckchem.com/products/GDC-0941.html study provides evidence supporting the hindgut hypothesis. II-SG increased GLP-1 production both in the interposed ileum and in the pancreatic islets, leading to metabolic beneficial effects and altered eating behavior.”
“Photofrin photodynamic therapy (PDT) is a licenced treatment for Barrett’s oesophagus (BE) with high-grade dysplasia (HGD) but causes strictures and photosensitivity and complete reversal of dysplasia (CR-HGD) by 50 % at 5 years. 5-Aminolaevulinic acid (ALA)

is an alternative treatment with non-randomised data suggesting 85 % CR-HGD and a low risk of side ARN-509 effects. We aimed to compare efficacy and side effect profile between the drugs. A single-centre randomised controlled trial was conducted. Presence of HGD was confirmed on three occasions by two specialist GI pathologists. Stratification was by length of BE and extent of dysplasia. Standard protocols for ALA and Photofrin-PDT were followed. Endoscopic follow-up with 2-cm four-quadrant biopsy was at 6 weeks, 4 months, and then annually. All adverse event data were collected. Sixty four patients were randomised, 34 ALA and 30 Photofrin-PDT. Median follow-up is 24 months. On intention-to-treat analysis, CR-HGD was 16/34 (47 %) with ALA-PDT and 12/30 (40 %) with Photofrin-PDT. The overall cancer incidence was 14 % (9/64). On sub-group log-rank analysis, for BE a parts per thousand currency sign6 cm, CR-HGD was significantly higher with ALA-PDT than Photofrin-PDT (chi(2) = 5.39, p = 0.02).

The first order kinetic and Langmuir adsorption ML323 price models were evaluated to simulate hydrodistillation of E. cinerea

oil. The Langmuir model parameters that simulate the hydrodistillation process were determined. GCMS analysis revealed that the oil produced from fresh foliage contained higher 1,8-cineole content (84.4%) than the dried foliage (77.6%). The other major constituents were limonene and alpha-terpineol. (C) 2008 Elsevier B.V. All rights reserved.”
“Introduction: Implantable cardioverter defibrillator (ICD) therapy of life-threatening arrhythmias in pediatric patients is feasible; however, recent studies report a high incidence of inappropriate shock deliveries.

Methods: The data of all recipients of an ICD at the Charite, Department of Pediatric Cardiology, between January 2001 and November 2007 were retrospectively analyzed regarding underlying cardiac disorders, arrhythmias, medication, ablation procedures, leads and devices, programming, and ICD therapies.

Results: A total of 33 patients underwent MK-2206 mw ICD implantation, with a median age of 16.5 years (range 8-36 years) and a mean weight of 61 +/- 20.9 kg. Underlying cardiac disorders were electrical heart disease (27%), cardiomyopathy (30%), congenital heart disease (33%), and others (9%). Eighty-five

percent received antiarrhythmic drugs, and 12 ablation procedures were performed in nine patients (27%). The devices were programmed individually according to the underlying diseases and arrhythmias. During follow-up, a total of 63 shock therapies were delivered in 11 patients, while a majority of 34 shocks occurred in one patient (no therapies in 22 of 33 patients). Only two such therapies were inappropriate, both delivered for atrial flutter.

Conclusions: In children and young adults receiving ICD therapy, the combination of strategies to prevent ventricular arrhythmias using specific drug therapy, Nocodazole ablation procedures, and individual programming with improved devices and leads causes a low incidence

of inappropriate shock delivery. (PACE 2010; 33:734-741)”
“The authors developed a fabrication technique of Co2FeSi/SiOxNy/Si tunnel junctions, employing rapid thermal annealing (RTA). The full-Heusler Co2FeSi (CFS) alloy thin film was directly formed on the ultrathin SiOxNy barrier layer without a buffer layer by RTA-induced silicidation reaction of a Co/Fe/amorphous-Si multilayer deposited on the barrier layer. The ultrathin SiOxNy layer formed on a Si substrate effectively blocked the diffusion of Co and Fe atoms into the Si substrate, leading to the formation of a high quality tunnel junction. It was found from crystallographic analyses that the CFS film on SiOxNy has a highly (110)-oriented texture structure with the L2(1) ordering and the CFS/SiOxNy interface was atomically flat without intermixing and crystallinity degradation. (C) 2010 American Institute of Physics. [doi:10.1063/1.

9-48% and 35.3-40%, respectively. Furthermore, the viscosity of waste frying oil was reduced to the extent of 9.4-12.8%. RF-plasma-treated

PES membranes appeared to improve the regeneration of waste frying oils and allow these oils to be used for either repeated frying operations or biodiesel production. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 123: 3402-3411, 2012″
“Objective

To study the accuracy and value of immediate wet preparation (WP) procedure on effusion and washing cytologic specimens.

Study Design

Two hundred specimens were identified DMXAA manufacturer over 3 months in our cytology laboratory, including 102 pleural effusion, 9 peritoneal effusion, 28 pelvic washing and 11 pericardial fluid specimens. WP slides were prepared, stained with toluidine blue (TB) and evaluated. Findings were reported as negative, suspicious or positive fir malignant cells. For negative specimens, the remaining prepared slides were stained together. For suspicious or positive interpretation, slides were stained separately. Accuracy and additional benefits from this immediate triage step were studied.

Results

Interpretation of slides resulted in 152 negative, 34 positive and 14 suspicious for malignancy. Analysis for additional values resulted in immediate interpretation relayed to clinicians,

additional selleckchem fluid centrifuged for adequate sediment in samples with scant cellularity, selection of bloody specimens for acid washing procedures, selection of cases to optimize cell block preparation when pivotal histologic evaluation or immunohistochemistry was anticipated and selection of cases for potentially needed ancillary studies. Accuracy, sensitivity, specificity and positive and negative predictive values https://www.selleckchem.com/products/a-1331852.html were high.

Conclusion

WP using the TB is accurate, sensitive and highly specific

and has considerable value beyond segregating potential neoplastic cases. (Acta Cytol 2009;53:71-76)”
“Although the majority of metastatic ovarian tumors arise within the female genital tract, squamous cell carcinoma of the cervix is a rare form of metastases to the bilateral ovaries by endometrial and transtubal spreading.

A 53-year-old woman was referred to the oncology clinic with postmenopausal bleeding. On vaginal examination, a 3 cm tumor arising from the cervix was inspected. Multiple cervical biopsies and endocervical curettage revealed large cell, non-keratinized squamous cell cervix carcinoma. Radical hysterectomy and bilateral salpingo-oophorectomy were performed. Bilateral pelvic and para-aortic lymph nodes were also removed. The final pathology report revealed endometrial, focal myometrial, bilateral tubal mucosal, fimbrial and bilateral ovarian squamous cell carcinoma involvement. Pelvic and para-aortic nodes were free from metastases.

Nine studies reported neurological status of survivors, which was mostly favorable, either no neurological sequelae or cerebral performance score mostly of 1-2. Studies focusing on post cardiac surgery patients reported the best long-term survival rates of 45-69%.

Conclusions: At present data on intensive care unit cardiac arrest is quite limited and originates mostly from retrospective single center studies. The quality of data overall seems to be poor and thus focused prospective multi-center studies are needed. (C) 2014 Elsevier Ireland Ltd. All rights reserved.”
“Objective: X-linked adrenal hypoplasia congenital

C59 (AHC) is a rare disorder caused by mutations in DAX1 gene. We report a case of X-linked AHC in a large family to analyze the pathogenesis of this

rare disease and YH25448 mouse to add to our clinical knowledge of it.

Methods: We describe 3-year-old boy’s clinical features and laboratory test results, as well as the patient’s nuclear family members’ clinical symptoms, especially those with features of adrenal insufficiency. Genomic deoxyribonucleic acid (DNA) was extracted from the patient’s and the family members’ peripheral blood leukocytes, and the coding region and promoter region of DAX1 were directly sequenced.

Results: A 3-year-old boy who was diagnosed with X-linked AHC presented with atypical symptoms, and his laboratory test results revealed elevated serum adrenocorticotropic hormone levels (ACTH) and decreased serum cortisol levels. Three novel mutations were detected in the DAX1 coding sequence in this family: a missense mutation (c.376G>A, p.Val126Met), a synonymous mutation (c.498G>A, p.Arg166Arg), and a nonsense mutation (c.1225C>T, p.Gln409X).

Conclusions: This report describes the familial transmission of AHC over several generations and further expands the number of DAX1 mutations reported in the literature. Early diagnosis and prompt treatment of X-linked AHC

are important and may provide a good prognosis.”
“The medical director of the hospital-based clinical laboratory is ultimately responsible, according to Clinical Laboratory Improvement Act (CLIA) regulations, for the quality selleck compound of services provided. The medical director, however, may have little authority over laboratory operations, possibly because of the organizational structure of the laboratory or the limited interaction between the medical director and hospital administrators. The Dyad (pair) model of management is ideal for implementation in the clinical laboratory. In this model, as applied in the hospital laboratory setting, the medical director and a member of the hospital administration team form a dyad to embrace shared accountability and to implement a common vision and shared goals.

The average number of drugs per prescription was 7.42. Prescriptions of at least one injectable drug or antibiotic were found in 58,00 % and 80,20 % of prescriptions, respectively. Half of prescribed drugs were part of the National List of Essential Drugs (50,33 %) and the Municipal List of Essential Drugs (55,24 %), both version 2006. The prevailing therapeutic classes were the analgesics (8.09 %) and anti-emetics (4.61 %). Incomplete medical prescriptions difficult drug use and hinder the service efficiency, putting at risk the quality of user assistance.”
“Objective: To estimate the associations between maternal vitamin D status and adverse pregnancy outcomes.

Study

design: We searched electronic databases of the human literature in PubMed, EMBASE and the Cochrane AZD6094 mouse Library up to October, Pexidartinib nmr 2012 using the following keywords: “”vitamin D”" and “”status”" or “”deficiency”" or “”insufficiency”"

and “”pregnancy”". A systematic review and meta-analysis were conducted on observational studies that reported the association between maternal blood vitamin D levels and adverse pregnancy outcomes including preeclampsia, gestational diabetes mellitus (GDM), preterm birth or small-for-gestational age (SGA).

Results: Twenty-four studies met the inclusion criteria. Women with circulating 25-hydroxyvitamin D [25(OH)D] level less than 50 nmol/l in pregnancy experienced an increased risk of preeclampsia [odds ratio (OR) 2.09 (95% confidence intervals 1.50-2.90)], GDM [OR 1.38 (1.12-1.70)], preterm birth [OR 1.58 (1.08-2.31)] and SGA [OR 1.52 (1.08-2.15)].

Conclusion: Low maternal vitamin D levels in pregnancy may be associated with an increased risk of preeclampsia,

GDM, preterm birth and SGA.”
“The aim of this study was to evaluate pharmaceutical counseling following hospital discharge. All subjects received pharmacist counseling before discharge in a private hospital in Aracaju-SE, Brazil, from October 2007 to February 2008. Medication adherence was measured by Haynes-Sacket and Morisky-Green-Levine scales at the end of post-discharge treatment. Post-surgery patients (n = 243) received counseling PXD101 cost on the day of hospital discharge, while adherence was observed in 186 (76.5 %) of these patients. During the four months, the increase in adherence was observed in those patients that received the counseling: 68.7%, 73.6 %,82.9 % and 85.7 %, respectively. The patients were distributed according to the variables of age, chronic illness, and duration of treatment did not significantly vary during the study. At the end of pharmaceutical counseling period, more than three fourths of post-surgery patients were considered adherent after hospital discharge. This result indicates a potential opportunity to implement this service in other wards.”
“Objective: To investigate the differences in exposure to medications in a cohort of multi-ethnic pregnant women.

Kinetic analysis PF-03084014 cost results indicated that the effective activation energy (E(alpha)) decreased with increasing the extent of conversion (alpha) for TMBP/DAP system because diffusion-controlled reaction dominated the curing reaction gradually in the later cure stage. TMBP/DAP/HPCTP(10 wt %) system had higher E(alpha) values than those of TMBP/DAP system in the early cure stage (alpha < 0.35), and an increase phenomenon of

E(alpha) similar to alpha dependence in the later cure stage (alpha >= 0.60) due to kinetic-controlled reaction in the later cure stage. Such complex E(alpha) similar to alpha dependence of TMBP/DAP/HPCTP(10 wt %) system might be associated with the change of the physical state (mainly viscosity) of the curing system due to the introduction of HPCTP. These cured epoxy resins had very high glass transition temperatures (202-235 degrees C), excellent thermal stability with high 5 wt % decomposition temperatures (>340 degrees C) and high char yields (>25.6 wt %). (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 114: 1397-1404, 2009″
“Background and object: There was no Chinese questionnaire to evaluate the health-related quality of life (HRQoL) in patients with hemifacial spasm (HFS). In this study, we aimed to validate a new disease-specific HRQoL scale for HFS (HFS-36) in Chinese version, and compared it to SF-36, a generic

HRQoL scale.

Patients and Methods: The HFS-36 Chinese version was modified from English version S63845 clinical trial of HFS-30, including subscales of mobility, activities of daily living (ADL), emotional

well-being, stigma, social support, cognition, bodily discomfort, and communication. All the items were scored on the 5-point scales, ranging from 0(never) to 4(always). Patients with HFS were asked to answer HFS-36 and SF-36 questionnaires on the same day before and 6-8 weeks after Botulinum toxin (BTX) injections, respectively. The reliability and validity of HFS-36 scale were evaluated statistically.

Results: CP-456773 datasheet Totally, 103 patients (68 females; 35 males) were recruited in this study, with a mean age of 57.6 +/- 11.5 years and a mean duration of HFS for 7.6 +/- 5.8 years. The intra-class correlation (ICC) and Cronbach’s alpha were over 0.7 in the majority of items. HFS-36 showed a good correlation to HFS severity before BTX treatment and a significant improvement of subscale scoring after BTX treatment. HFS-36 also had a significant correlation to the mental health of SF-36.

Conclusions: The Chinese version of HFS-36 demonstrated a good reliability and validity in subscales of motility, ADL, emotion well-being, stigma and bodily discomfort. The HRQoL was significantly improved after BTX treatment assessed by HFS-36 or SF-36. Compared to SF-36, HFS-36 scale was more sensitive and specific to evaluate the HRQoL in HFS.

“
“In the electrospinning selleck kinase inhibitor of polymer nanofibers, an electrically driven jet of polymer solution travels to a grounded target to be collected. The morphology of the resulting nanofibers

can be manipulated through process parameters, though little work has been done to correlate electrospinning parameters with those of the free-jet flow of pure liquids. This is essential when the nanofibers hold entrained beaded structures indicative of jet breakup. The effects of applied voltage and solution concentration on the fiber morphology of electrospun aqueous solutions of poly(ethylene oxide) were investigated. Solution concentrations of 4-8 wt % were used along with voltages of 4.5-11 kV to produce nanofibers with and without entrained beads. It was determined that the calculated Weber number for each condition correlated well with the resulting

morphology. These results may suggest that Weber number may also be used to predict nanofibers morphology in the electrospinning of other polymer systems. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 120: 880 885, 2011″
“Ethanol production from corn stover hemicellulosic hydrolysate was investigated using immobilized recombinant Saccharomyces cerevisiae yeast cells. Detoxification of hemicellulosic hydrolysate by roto-evaporation and lime neutralization was carried out to remove volatile fermentation inhibitors. All furfural and more AZD2014 cell line than 50% acetic acid in the hydrolysate were removed, meanwhile the xylose concentration was enhanced to 71.8 g/L. The fermentability of the detoxified hydrolysate was significantly improved using immobilized cells of recombinant S. cerevisiae by Ca-alginate. An ethanol concentration of 31.1 g/L and the corresponding ethanol yield on fermentable sugars of 0.406 g/g were obtained within 72 h in batch fermentation of the detoxified hydrolysate with Epacadostat immobilized cells. In addition, repeated batch fermentation of immobilized recombinant S. cerevisiae cells was attempted for ethanol production for 5 batches. The concentration of ethanol

in each batch maintained above 30.1 g/L with the ethanol yield on fermentable sugars over 0.393 g/g. These results demonstrate the viability and significance of ethanol production from corn stover hemicellulosic hydrolysate. (C) 2009 Elsevier B.V. All rights reserved.”
“The essential trace element selenium has long been considered to exhibit anti-diabetic and insulin-mimetic properties, but recent epidemiological studies indicated supranutritional selenium intake and high plasma selenium levels as possible risk factors for development of type 2 diabetes, pointing to adverse effects of selenium on carbohydrate metabolism in humans. However, increased plasma selenium levels might be both a consequence and a cause of diabetes.

Design: In 22 NICO patients, not having taken bisphosphonates, mutations affecting NO production (eNOS T-786C, stromelysin 5A6A) were measured by polymerase chain reaction. Two healthy normal control subjects were matched per case by race and gender.

Results. Homozygosity for the mutant eNOS allele (TT) was present in 6 out

of 22 patients (27%) with NICO compared with 0 out of 44 (0%) race and gender-matched control subjects; heterozygosity (TC) was present in 8 patients (36%) versus 15 control subjects (34%); and the wild-type normal genotype (CC) was present in 9 patients (36%) versus 29 controls (66%) (P = .0008). The mutant eNOS T-786C allele was more common in cases (20 out of 44 [45%]) than in control subjects (15 out of 88 [17%]) (P = .0005). click here The distribution of the stromelysin 5A6A genotype in cases did not differ from control subjects (P = .13).

Conclusions. The eNOS T-786C polymorphism affecting NO production is associated with NICO, may contribute to the pathogenesis of NICO, and may open therapeutic medical approaches to treatment of NICO through provision of L-arginine, the amino-acid precursor of NO. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2010; 109: 548-553)”
“By 2015, it is estimated that nearly half of those living with HIV

in the US will be 50 years of age and older. This dramatic change in the demographics of this clinical population represents unique challenges for patients, health care providers, and society-at-large. Fortunately, because of highly active antiretroviral therapy (HAART) Rigosertib mouse and healthy lifestyle choices, it is now possible for many

infected with HIV to age successfully with this disease; however, this depends upon one’s definition of successful aging. It is proposed that successful aging is composed of eight factors: length of life, biological health, cognitive efficiency, mental health, social competence, productivity, personal control, and life satisfaction. Unfortunately, HIV and medication side effects can compromise these factors, thus diminishing one’s capacity to age successfully with this disease. This article explores how HIV, medication side effects from HAART, and lifestyle choices can compromise the factors necessary MK-4827 nmr to age successfully. Implications for practice and research are posited.”
“The prevalence of autism spectrum disorders for children with epilepsy in the general population is unknown. In a prospective community-based study of newly diagnosed childhood epilepsy, autism spectrum disorder was determined from parental interviews, medical records, and expert reviews by a child psychiatrist. A total of 28 (5%) participants had autism spectrum disorders. West syndrome (prevalence ratio = 4.53, P = .002) and intellectual impairment (prevalence ratio = 4.34, P = .002) were independently associated with autism spectrum disorder. Absent West syndrome, male gender was associated with autism spectrum disorder (prevalence ratio = 3.71, P = .

These observations suggested that embelin is a neuroprotective agent and may prove to be useful adjunct in the treatment of stroke.”
“Transcription factors play a fundamental role in plants by orchestrating temporal and spatial gene expression in response to environmental stimuli. Several R2R3-MYB genes of the Arabidopsis subgroup 4 (Sg4) share a C-terminal EAR motif signature recently linked to stress response in angiosperm plants. It is reported

here that nearly all Sg4 MYB genes in the conifer trees Picea GW4869 ic50 glauca (white spruce) and Pinus taeda (loblolly pine) form a monophyletic clade (Sg4C) that expanded following the split of gymnosperm and angiosperm lineages. Deeper sequencing in P. glauca identified 10 distinct Sg4C sequences, indicating over-represention of Sg4 sequences compared with angiosperms such as Arabidopsis, Oryza, Vitis, and Populus. The Sg4C MYBs share the EAR motif core. Many of them had stress-responsive transcript profiles after wounding, jasmonic acid (JA) treatment, or exposure to cold in P. glauca and P. taeda, with MYB14 transcripts accumulating most strongly and rapidly. Functional characterization was initiated by

expressing the P. taeda MYB14 (PtMYB14) gene in transgenic P. glauca plantlets with a tissue-preferential promoter (cinnamyl alcohol dehydrogenase) and a ubiquitous gene promoter (ubiquitin). Histological, metabolite, and transcript (microarray and targeted quantitiative SRT2104 in vitro real-time PCR) analyses of PtMYB14 transgenics, coupled Quisinostat purchase with mechanical wounding and JA application experiments on wild-type plantlets, allowed identification of PtMYB14 as a putative regulator of an isoprenoid-oriented response that leads to the accumulation of sesquiterpene in conifers. Data further suggested that PtMYB14 may contribute to a broad defence response implicating flavonoids. This study also addresses the

potential involvement of closely related Sg4C sequences in stress responses and plant evolution.”
“We present a novel all-dielectric left-handed metamaterial (LHM) in the X-band microwave regime. The LHM is formed by cubes and square rods, which are made of microwave ceramic with high permittivity and low loss. Both Mie theory and dielectric resonator theory are found to play important roles in generating negative effective parameters. The effective permeability is negative in the designed frequency range due to the first Mie resonance associated with the cubes, while the effective permittivity is negative below the plasma frequency owing to the second resonance mode of the square rods. The parameter retrieval method, transmission spectra method and wedge-shaped negative refraction method are used to demonstrate that the composite has a double-negative regime. Experiments are carried out to verify the designed all-dielectric LHM. The proposed method presents new ways to realize all-dielectric LHMs. (C) 2011 American Institute of Physics. [doi: 10.1063/1.

5 ml min(-1), Na(2)SO(4) concentration 0.01 mol L(-1). Under these conditions, 99% colour and 86.7% COD removal were achieved. Toxicity tests were also performed on BB3 solutions under the best experimental conditions.

CONCLUSION: Based on these results, the BDD anode was found to be very successful for the simultaneous degradation of BB3 and removal of COD. Additional toxicity test results also showed that electrochemical treatment

using a BDD Raschig ring anode in a BTT reactor is an effective way of reducing toxicity as well as removing colour and COD. SNX-5422 in vivo (C) 2010 Society of Chemical Industry”
“Six new glycosides (1-6) have been isolated from the flower buds of Lonicera japonica. Their structures including the absolute configurations were determined by spectroscopic and chemical methods as (-)-2-hydroxy-5-methoxybenzoic acid 2-O–d-(6-O-benzoyl)-glucopyranoside (1), (-)-4-hydroxy-3,5-dimethoxybenzoic Z-DEVD-FMK concentration acid 4-O–d-(6-O-benzoyl)-glucopyranoside (2), (-)-(E)-3,5-dimethoxyphenylpropenoic acid 4-O–d-(6-O-benzoyl)-glucopyranoside (3), (-)-(7S,8R)-(4-hydroxyphenylglycerol 9-O–d-[6-O-(E)-4-hydroxy-3,5-dimethoxyphenylpropenoyl]-glucopyranoside (4), (-)-(7S,8R)-(4-hydroxy-3-methoxyphenylglycerol 9-O–d-[6-O-(E)-4-hydroxy-3,5-dimethoxyphenylpropenoyl]-glucopyranoside (5), and (-)-4-hydroxy-3-methoxyphenol -d-6-O-[4-O-(7S,8R)-(4-hydroxy-3-methoxyphenylglycerol-8-yl)-3-methoxybenzoyl]-glucopyranoside

(6), respectively.”
“BACKGROUND: One of the most important industrial sources of volatile organic compounds (VOCs) is related to coating and painting applications. In this sense, photocatalytic oxidation can become an innovative and promising alternative for the remediation of air polluted by VOCs. In this study the UV photodegradation of m-xylene, toluene and

n-butyl acetate, as representative compounds of paint solvents, was carried out in an annular reactor using a TiO2-glass wool supported catalyst.

RESULTS: The removal selleckchem of each component and their mixture, simulating an industrial emission, was evaluated under different operational conditions. A maximum elimination capacity of 12,18 and 80 mg C m(-3) s(-1) was reached for m-xylene, toluene and n-butyl acetate, respectively. A simple Langmuir-Hinshelwood kinetic model was used to match the experimental data. Photocatalytic oxidation was found to be more effective for all compounds when humidified air was used.

CONCLUSIONS: No mass transfer limitation was found under the experimental conditions. n-butyl acetate was the easiest to degrade and m-xylene the most recalcitrant. In the abatement of the mixture, competitive adsorption between the pollutants was observed, with the degradation of toluene especially hindered. A nearly linear correlation was found between the UV light intensity and kinetic constants.