Mechanistic insight into selective catalytic combustion of HCN over Cu-BEA: influence of different active center structures

2017 ◽  
Vol 19 (35) ◽  
pp. 23960-23970 ◽  
Author(s):  
Ning Liu ◽  
Xiaoning Yuan ◽  
Runduo Zhang ◽  
Yingxia Li ◽  
Biaohua Chen
Keyword(s):  
Organic Compound ◽  
Active Center ◽  
Volatile Organic Compound ◽  
Catalytic Combustion ◽  
Living Environment ◽  
Mechanistic Insight ◽  
Volatile Organic ◽  
Insight Into

HCN being a highly toxic N-containing volatile organic compound (VOCs) poses great threat to human living environment.

Total oxidation of isopropanol over manganese oxide modified ZSM-5 zeolite membrane catalysts

RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 29482-29490 ◽  
Author(s):  
Wang Ling ◽  
Zhang Huiping ◽  
Yan Ying ◽  
Zhang Xinya
Keyword(s):  
Organic Compound ◽  
Manganese Oxide ◽  
Volatile Organic Compound ◽  
Membrane Reactor ◽  
Catalytic Combustion ◽  
Zeolite Membrane ◽  
Total Oxidation ◽  
Volatile Organic

Manganese oxide modified ZSM-5 membrane catalysts were prepared for the catalytic combustion of a volatile organic compound (isopropanol) over a zeolite membrane reactor.

scholarly journals Screening of Chorioamnionitis Using Volatile Organic Compound Detection in Exhaled Breath: A Pre-clinical Proof of Concept Study

2021 ◽  
Vol 9 ◽  
Author(s):  
Daan R. M. G. Ophelders ◽  
Agnes W. Boots ◽  
Matthias C. Hütten ◽  
Salwan Al-Nasiry ◽  
Reint K. Jellema ◽  
...  
Keyword(s):  
Risk Factor ◽  
Preterm Birth ◽  
Organic Compound ◽  
Volatile Organic Compound ◽  
Diagnostic Tools ◽  
Exhaled Breath ◽  
Ureaplasma Parvum ◽  
Pregnant Sheep ◽  
Volatile Organic ◽  
Insight Into

Chorioamnionitis is a major risk factor for preterm birth and an independent risk factor for postnatal morbidity for which currently successful therapies are lacking. Emerging evidence indicates that the timing and duration of intra-amniotic infections are crucial determinants for the stage of developmental injury at birth. Insight into the dynamical changes of organ injury after the onset of chorioamnionitis revealed novel therapeutic windows of opportunity. Importantly, successful development and implementation of therapies in clinical care is currently impeded by a lack of diagnostic tools for early (prenatal) detection and surveillance of intra-amniotic infections. In the current study we questioned whether an intra-amniotic infection could be accurately diagnosed by a specific volatile organic compound (VOC) profile in exhaled breath of pregnant sheep. For this purpose pregnant Texel ewes were inoculated intra-amniotically with Ureaplasma parvum and serial collections of exhaled breath were performed for 6 days. Ureaplasma parvum infection induced a distinct VOC-signature in expired breath of pregnant sheep that was significantly different between day 0 and 1 vs. day 5 and 6. Based on a profile of only 15 discriminatory volatiles, animals could correctly be classified as either infected (day 5 and 6) or not (day 0 and 1) with a sensitivity of 83% and a specificity of 71% and an area under the curve of 0.93. Chemical identification of these distinct VOCs revealed the presence of a lipid peroxidation marker nonanal and various hydrocarbons including n-undecane and n-dodecane. These data indicate that intra-amniotic infections can be detected by VOC analyses of exhaled breath and might provide insight into temporal dynamics of intra-amniotic infection and its underlying pathways. In particular, several of these volatiles are associated with enhanced oxidative stress and undecane and dodecane have been reported as predictive biomarker of spontaneous preterm birth in humans. Applying VOC analysis for the early detection of intra-amniotic infections will lead to appropriate surveillance of these high-risk pregnancies, thereby facilitating appropriate clinical course of action including early treatment of preventative measures for pre-maturity-associated morbidities.

Pilot plant plasma-catalytic system for the decomposition of a volatile organic compound

2016 ◽  
Vol 15 (3) ◽  
pp. 251-259
Author(s):  
Shreedhar Devkota ◽  
◽  
Jin Oh Jo ◽  
Dong Lyong Jang ◽  
Young Jin Hyun ◽  
...  
Keyword(s):  
Organic Compound ◽  
Catalytic System ◽  
Volatile Organic Compound ◽  
Pilot Plant ◽  
Volatile Organic
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