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Yuan Q, Li W, Xia Z, Hu J, He L, Jin L, Zhang L, Chu X, Zhang K. SnO 2QDs sensitized ZnFe 2O 4spheres with enhanced acetone sensing performance. Nanotechnology 2024; 35:275502. [PMID: 38569479 DOI: 10.1088/1361-6528/ad39f3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 04/03/2024] [Indexed: 04/05/2024]
Abstract
Herein, SnO2QDs (<10 nm) with small size instead of conventional nanoparticles was employed to modify ZnFe2O4to synthesize porous and heterogeneous SnO2/ZnFe2O4(ZFSQ) composites for gas sensing. By an immersion process combined with calcination treatment, the resultant porous ZFSQ composites with different contents of SnO2QDs were obtained, and their sensing properties were investigated. Compared with bare ZnFe2O4and SnO2QDs, porous ZFSQ composites based-sensors showed much improved sensor response to acetone. For contrast, the sensor performance of ZFSQ composites was also compared with that of ZnFe2O4sphere modified by SnO2nanoparticles with different size. The porous ZFSQ composite with 5 wt% SnO2QDs (ZFSQ-5) showed a better acetone sensing response than that of other ZFSQ composites, and it exhibited a high response value of 110-100 ppm of acetone and a low detection limit of 0.3 ppm at 240 °C. In addition to the rich heterojunctions and porous structure, the size effect of SnO2QDs was other indispensable reasons for the improved sensor performance. Finally, the ZFSQ-5 composite sensor was attempted to be applied for acetone sensing in exhaled breath, suggesting its great potential in monitoring acetone.
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Affiliation(s)
- Qiming Yuan
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, People's Republic of China
| | - Weichao Li
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, People's Republic of China
| | - Zhangcheng Xia
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, People's Republic of China
| | - Jingjie Hu
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, People's Republic of China
| | - Lifang He
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, People's Republic of China
| | - Ling Jin
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, People's Republic of China
| | - Liqiang Zhang
- School of Metallurgy, Anhui University of Technology, Ma'anshan, Anhui 243032, People's Republic of China
| | - Xiangfeng Chu
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, People's Republic of China
| | - Kui Zhang
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, People's Republic of China
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Shen Y, Liu Y, Fan C, Wang Q, Li M, Yang Z, Gao L. Enhanced Acetone Sensing Properties Based on Au-Pd Decorated ZnO Nanorod Gas Sensor. Sensors (Basel) 2024; 24:2110. [PMID: 38610323 PMCID: PMC11014327 DOI: 10.3390/s24072110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024]
Abstract
The mature processes of metal oxide semiconductors (MOS) have attracted considerable interest. However, the low sensitivity of metal oxide semiconductor gas sensors is still challenging, and constrains its practical applications. Bimetallic nanoparticles are of interest owing to their excellent catalytic properties. This excellent feature of bimetallic nanoparticles can solve the problems existing in MOS gas sensors, such as the low response, high operating temperature and slow response time. To enhance acetone sensing performance, we successfully synthesized Au-Pd/ZnO nanorods. In this work, we discovered that Au-Pd nanoparticles modified on ZnO nanorods can remarkably enhance sensor response. The Au-Pd/ZnO gas sensor has long-term stability and an excellent response/recovery process. This excellent sensing performance is attributed to the synergistic catalytic effect of bimetallic AuPd nanoparticles. Moreover, the electronic and chemical sensitization of noble metals also makes a great contribution. This work presents a simple method for preparing Au-Pd/ZnO nanorods and provides a new solution for the detection of acetone based on metal oxide semiconductor.
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Affiliation(s)
- Yinfeng Shen
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (Y.S.); (Y.L.); (M.L.)
| | - Yiping Liu
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (Y.S.); (Y.L.); (M.L.)
| | - Chao Fan
- Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
| | - Qudong Wang
- National Engineering Research Center of Light Alloy Net Forming, State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
| | - Ming Li
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (Y.S.); (Y.L.); (M.L.)
| | - Zhi Yang
- Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
| | - Liming Gao
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (Y.S.); (Y.L.); (M.L.)
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Vogiantzi C, Tserpes K. A Preliminary Investigation on a Water- and Acetone-Based Solvolysis Recycling Process for CFRPs. Materials (Basel) 2024; 17:1102. [PMID: 38473577 DOI: 10.3390/ma17051102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024]
Abstract
Composites, and especially carbon-fiber-reinforced plastics (CFRPs), are increasingly used in the automotive, aerospace, and aviation industries, and as a result, CFRP production has increased dramatically, leading to a corresponding increase in waste. Landfills and the incineration of waste are likely to be restricted as a result of legislation, thus highlighting the need for efficient recycling methods for CFRPs. However, the recycling of CFRPs is very challenging, mainly due to the difficulty of removing their thermosetting matrix. This study reports a pre-screening of the solvolysis recycling process for CFRPs based on the mechanical properties of the recovered fibers. To this end, solvolysis tests were conducted on unidirectional CFRP samples under supercritical and subcritical conditions using acetone and water. The solvolysis tests were conducted for various conditions of temperature, pressure, and reaction time, without the use of any catalyst. Also, the loading rate (volume of solvent/volume of reactor) was constant. The efficiency of the recycling processes has been evaluated through a morphological and a mechanical characterization of the recovered fibers. In most cases, the decomposition efficiency of the epoxy resin, measured in terms of mass, ranged between 90 and 100%. Moreover, the scanning electron microscopy images of the recovered fibers showed negligible traces of resin residues and no detectable signs of physical damage or any changes in morphology with regard to diameter. Finally, the single-fiber tension tests revealed that that the recovered fibers retained more than 61% of their initial Young's modulus and 70% of their tensile strength.
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Affiliation(s)
- Christina Vogiantzi
- Laboratory of Technology & Strength of Materials, Department of Mechanical & Aeronautical Engineering, University of Patras, 26500 Patras, Greece
| | - Konstantinos Tserpes
- Laboratory of Technology & Strength of Materials, Department of Mechanical & Aeronautical Engineering, University of Patras, 26500 Patras, Greece
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Sivaraj C, Maiti D, Gandhi T. Photo-Catalyzed Acyl Azolium Promoted Selective α-C(sp 3 )-H Acylation of Acetone via HAT: Access to Thermodynamically Less Favoured (Z)-α,β-Unsaturated Ketones. Chemistry 2024; 30:e202303626. [PMID: 37997552 DOI: 10.1002/chem.202303626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 11/25/2023]
Abstract
Mono α-acylation of acetone has been achieved for the first time by reacting with bench-stable acyl azolium salts under violet-LED light at room temperature. The intermolecular hydrogen atom transfer (HAT) from acetone to triplet state of azolium salts under violet LED irradiation resulted in thermodynamically less favourable (Z)-α,β-unsaturated ketones with up to 99 : 1 selectivity via C-C bond formation. This compelling protocol access the desired α-C(sp3 )-H acylation product under metal-, ligand- and oxidant-free conditions on a wide range of substrates.
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Affiliation(s)
- Chandrasekaran Sivaraj
- Department of Chemistry, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Thirumanavelan Gandhi
- Department of Chemistry, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India
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Shisler KA, Kincannon WM, Mattice JR, Larson J, Valaydon-Pillay A, Mus F, Flusche T, Kumar Nath A, Stoian SA, Raugei S, Bothner B, DuBois JL, Peters JW. Homologous acetone carboxylases select Fe(II) or Mn(II) as the catalytic cofactor. mBio 2024; 15:e0298723. [PMID: 38126751 PMCID: PMC10865871 DOI: 10.1128/mbio.02987-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 11/16/2023] [Indexed: 12/23/2023] Open
Abstract
Acetone carboxylases (ACs) catalyze the metal- and ATP-dependent conversion of acetone and bicarbonate to form acetoacetate. Interestingly, two homologous ACs that have been biochemically characterized have been reported to have different metal complements, implicating different metal dependencies in catalysis. ACs from proteobacteria Xanthobacter autotrophicus and Aromatoleum aromaticum share 68% sequence identity but have been proposed to have different catalytic metals. In this work, the two ACs were expressed under the same conditions in Escherichia coli and were subjected to parallel chelation and reconstitution experiments with Mn(II) or Fe(II). Electron paramagnetic and Mössbauer spectroscopies identified signatures, respectively, of Mn(II) or Fe(II) bound at the active site. These experiments showed that the respective ACs, without the assistance of chaperones, second metal sites, or post-translational modifications facilitate correct metal incorporation, and despite the expected thermodynamic preference for Fe(II), each preferred a distinct metal. Catalysis was likewise associated uniquely with the cognate metal, though either could potentially serve the proposed Lewis acidic role. Subtle differences in the protein structure are implicated in serving as a selectivity filter for Mn(II) or Fe(II).IMPORTANCEThe Irving-Williams series refers to the predicted stabilities of transition metal complexes where the observed general stability for divalent first-row transition metal complexes increase across the row. Acetone carboxylases (ACs) use a coordinated divalent metal at their active site in the catalytic conversion of bicarbonate and acetone to form acetoacetate. Highly homologous ACs discriminate among different divalent metals at their active sites such that variations of the enzyme prefer Mn(II) over Fe(II), defying Irving-Williams-predicted behavior. Defining the determinants that promote metal discrimination within the first-row transition metals is of broad fundamental importance in understanding metal-mediated catalysis and metal catalyst design.
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Affiliation(s)
- Krista A. Shisler
- Institute of Biological Chemistry, Washington State University, Pullman, Washington, USA
| | - William M. Kincannon
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana, USA
| | - Jenna R. Mattice
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana, USA
| | - James Larson
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana, USA
| | | | - Florence Mus
- Institute of Biological Chemistry, Washington State University, Pullman, Washington, USA
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma, USA
| | - Tamara Flusche
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma, USA
| | - Arnab Kumar Nath
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana, USA
| | | | - Simone Raugei
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington, USA
| | - Brian Bothner
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana, USA
| | - Jennifer L. DuBois
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana, USA
| | - John W. Peters
- Institute of Biological Chemistry, Washington State University, Pullman, Washington, USA
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma, USA
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington, USA
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Kuranov D, Grebenkina A, Bogdanova A, Platonov V, Polomoshnov S, Krivetskiy V, Rumyantseva M. Effect of Donor Nb(V) Doping on the Surface Reactivity, Electrical, Optical and Photocatalytic Properties of Nanocrystalline TiO 2. Materials (Basel) 2024; 17:375. [PMID: 38255544 PMCID: PMC10817237 DOI: 10.3390/ma17020375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/23/2023] [Accepted: 01/08/2024] [Indexed: 01/24/2024]
Abstract
In this work, we primarily aimed to study the Nb(V) doping effect on the surface activity and optical and electrical properties of nanocrystalline TiO2 obtained through flame-spray pyrolysis. Materials were characterized using X-ray diffraction, Raman spectroscopy and IR, UV and visible spectroscopy. The mechanism of surface reaction with acetone was studied using in situ DRIFTs. It was found that the TiO2-Nb-4 material demonstrated a higher conversion of acetone at a temperature of 300 °C than pure TiO2, which was due to the presence of more active forms of chemisorbed oxygen, as well as higher Lewis acidity of the surface. Conduction activation energies (Eact) were calculated for thin films based on TiO2-Nb materials. The results of the MB photobleaching experiment showed a non-monotonic change in the photocatalytic properties of materials with an increase in Nb(V) content, which was caused by a combination of factors, such as specific surface area, phase composition, concentration of charge carriers as well as their recombination due to lattice point defects.
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Affiliation(s)
- Dmitriy Kuranov
- Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia (V.K.)
- Scientific-Manufacturing Complex Technological Centre, 124498 Moscow, Russia
| | - Anastasia Grebenkina
- Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia (V.K.)
| | - Alexandra Bogdanova
- Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia (V.K.)
| | - Vadim Platonov
- Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia (V.K.)
| | - Sergey Polomoshnov
- Scientific-Manufacturing Complex Technological Centre, 124498 Moscow, Russia
| | - Valeriy Krivetskiy
- Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia (V.K.)
- Scientific-Manufacturing Complex Technological Centre, 124498 Moscow, Russia
| | - Marina Rumyantseva
- Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia (V.K.)
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To NDK, Theruvathu JA. Determination and Quantification of Acetaldehyde, Acetone, and Methanol in Hand Sanitizers Using Headspace GC/MS: Effect of Storage Time and Temperature. Int J Environ Res Public Health 2024; 21:74. [PMID: 38248538 PMCID: PMC10815429 DOI: 10.3390/ijerph21010074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 01/05/2024] [Accepted: 01/07/2024] [Indexed: 01/23/2024]
Abstract
Accurate determination of the concentration of alcohols and their metabolites is important in forensics and in several life science areas. A new headspace gas chromatography-mass spectrometry method has been developed to quantify alcohols and their oxidative products using isotope-labeled internal standards. The limit of detection (LOD) of the analytes in the developed method was 0.211 µg/mL for methanol, 0.158 µg/mL for ethanol, 0.157 µg/mL for isopropanol, 0.010 µg/mL for n-propanol, 0.157 µg/mL for acetone, and 0.209 µg/mL for acetaldehyde. The precision and accuracy of the method were evaluated, and the relative standard deviation percentages were found to be less than 3%. This work demonstrates the application of this method, specifically in quantifying the concentration of oxidative products of alcohol and other minor alcohols found in hand sanitizers, which have become an essential household item since the COVID-19 pandemic. Apart from the major components, the minor alcohols found in hand sanitizers include methanol, isopropanol, and n-propanol. The concentration range of these minor alcohols found in ethanol-based hand sanitizer samples was as follows: methanol, 0.000921-0.0151 mg/mL; isopropanol, 0.454-13.8 mg/mL; and n-propanol, 0.00474-0.152 mg/mL. In ethanol-based hand sanitizers, a significant amount of acetaldehyde (0.00623-0.231 mg/mL) was observed as an oxidation product, while in the isopropanol-based hand sanitizer, acetone (0.697 mg/mL) was observed as an oxidation product. The concentration of acetaldehyde in ethanol-based hand sanitizers significantly increased with storage time and temperature, whereas no such increase in acetone concentration was observed in isopropanol-based hand sanitizers with storage time and temperature. In two of the selected hand sanitizers, the acetaldehyde levels increased by almost 200% within a week when stored at room temperature. Additionally, exposing the hand sanitizers to a temperature of 45 °C for 24 h resulted in a 100% increase in acetaldehyde concentration. On the contrary, the acetone level remained constant upon the change in storage time and temperature.
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Affiliation(s)
| | - Jacob A. Theruvathu
- Department of Natural Sciences, University of Houston-Downtown, Houston, TX 77002, USA;
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Yuan C, Qiao Y, Zhang Z, Chai Y, Zhang X, Dong X, Zhao Y. Studying Fluorescence Sensing of Acetone and Tryptophan and Antibacterial Properties Based on Zinc-Based Triple Interpenetrating Metal-Organic Skeletons. Molecules 2023; 28:7315. [PMID: 37959734 PMCID: PMC10648533 DOI: 10.3390/molecules28217315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 10/26/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
Two triple interpenetrating Zn(II)-based MOFs were studied in this paper. Named [Zn6(1,4-bpeb)4(IPA)6(H2O)]n (MOF-1) and {[Zn3(1,4-bpeb)1.5(DDBA)3]n·2DMF} (MOF-2), {1,4-bpeb = 1,4-bis [2-(4-pyridy1) ethenyl]benze, IPA = Isophthalic acid, DDBA = 3,3'-Azodibenzoic acid}, they were synthesized by the hydrothermal method and were characterized and stability tested. The results showed that MOF-1 had good acid-base stability and solvent stability. Furthermore, MOF-1 had excellent green fluorescence and with different phenomena in different solvents, which was almost completely quenched in acetone. Based on this phenomenon, an acetone sensing test was carried out, where the detection limit of acetone was calculated to be 0.00365% (volume ratio). Excitingly, the MOF-1 could also be used as a proportional fluorescent probe to specifically detect tryptophan, with a calculated detection limit of 34.84 μM. Furthermore, the mechanism was explained through energy transfer and competitive absorption (fluorescence resonance energy transfer (FRET)) and internal filtration effect (IFE). For antibacterial purposes, the minimum inhibitory concentrations of MOF-1 against Escherichia coli and Staphylococcus aureus were 19.52 µg/mL and 39.06 µg/mL, respectively, and the minimum inhibitory concentrations of MOF-2 against Escherichia coli and Staphylococcus aureus were 68.36 µg/mL and 136.72 µg/mL, respectively.
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Affiliation(s)
- Congying Yuan
- School of Life Science, Luoyang Normal University, 6 Jiqing Road, Luoyang 471934, China; (C.Y.); (X.Z.); (X.D.)
| | - Yidan Qiao
- Henan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China; (Y.Q.); (Z.Z.); (Y.C.)
- College of Materials and Chemical Engineering, China Three Gorges University, No. 8, Daxue Road, Yichang 443002, China
| | - Zhaolei Zhang
- Henan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China; (Y.Q.); (Z.Z.); (Y.C.)
| | - Yinhang Chai
- Henan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China; (Y.Q.); (Z.Z.); (Y.C.)
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaojun Zhang
- School of Life Science, Luoyang Normal University, 6 Jiqing Road, Luoyang 471934, China; (C.Y.); (X.Z.); (X.D.)
| | - Xiaojing Dong
- School of Life Science, Luoyang Normal University, 6 Jiqing Road, Luoyang 471934, China; (C.Y.); (X.Z.); (X.D.)
| | - Ying Zhao
- Henan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China; (Y.Q.); (Z.Z.); (Y.C.)
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Tang WHW, Tranchito L, Albert C, Gul ZG, Cikach FS, Grove D, Wu Y, Dweik RA. Exhaled Breath Analysis Using Selected Ion Flow Tube Mass Spectrometry and Disease Severity in Heart Failure. Metabolites 2023; 13:1049. [PMID: 37887374 PMCID: PMC10608518 DOI: 10.3390/metabo13101049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 10/28/2023] Open
Abstract
Exhaled breath volatile organic compounds (VOCs) are elevated in heart failure (HF). The ability of VOCs to predict long term cardiovascular mortality and morbidity has not been independently verified. In 55 patients admitted with acute decompensated heart failure (ADHF), we measured exhaled breath acetone and pentane levels upon admission and after 48 h of diuresis. In a separate cohort of 51 cardiac patients undergoing cardiopulmonary exercise testing (CPET), we measured exhaled breath acetone and pentane levels before and at peak exercise. In the ADHF cohort, admission acetone levels correlated with lower left ventricular ejection fraction (LVEF, r = -0.297, p = 0.035). Greater weight loss with diuretic therapy correlated with a greater reduction in both acetone levels (r = -0.398, p = 0.003) and pentane levels (r = -0.309, p = 0.021). In patients with above-median weight loss (≥4.5 kg), patients demonstrated significantly greater percentage reduction in acetone (59% reduction vs. 7% increase, p < 0.001) and pentane (23% reduction vs. 2% reduction, p = 0.008). In the CPET cohort, admission acetone and pentane levels correlated with higher VE/VCO2 (r = 0.39, p = 0.005), (r = 0.035, p = 0.014). However, there were no significant correlations between baseline or peak exercise acetone and pentane levels and peak VO2. In longitudinal follow-up with a median duration of 33 months, patients with elevated exhaled acetone and pentane levels experienced higher composite adverse events of death, ventricular assist device implantation, or orthotopic heart transplantation. In patients admitted with ADHF, higher exhaled breath acetone levels are associated with lower LVEF and poorer outcomes, and greater reductions in exhaled breath acetone and pentane tracked with greater weight loss. Exhaled acetone and pentane may be novel biomarkers in heart failure worthy of future investigation.
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Affiliation(s)
- Wai Hong Wilson Tang
- Heart Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Lily Tranchito
- Endocrinology & Metabolism Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Chonyang Albert
- Heart Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Zeynep G. Gul
- Department of Surgery, Washington University School of Medicine at St Louis, St Louis, MO 63110, USA
| | - Frank S. Cikach
- Heart Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - David Grove
- Department of Inflammation and Immunology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (D.G.); (R.A.D.)
- Respiratory Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Yuping Wu
- Department of Mathematics, Cleveland State University, Cleveland, OH 44195, USA
| | - Raed A. Dweik
- Department of Inflammation and Immunology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (D.G.); (R.A.D.)
- Respiratory Institute, Cleveland Clinic, Cleveland, OH 44195, USA
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Abstract
This study introduces a promising technique to enhance the sensitivity of p-type semiconductors in gas-sensing applications. By utilizing a glycerate-templated synthesis approach, a unique hierarchical W-doped Co3O4 yolk-shell sphere (YSS)-based sensor was developed, exhibiting exceptional sensitivity toward acetone gas. The synthesized YSSs feature a yolk-shell structure with a diameter of approximately 500 nm and a large surface area of 117.46 m2/g, which allows for efficient gas interaction and high sensitivity toward acetone gas. Furthermore, the incorporation of tungsten (W), a non-noble metal, as a dopant significantly enhances the surface activity of Co3O4, leading to a remarkably high response of 16.5 toward 5 ppm acetone, which is substantially higher than that of the pure Co3O4 YSS (2.9). The W-doped Co3O4 YSS also exhibits excellent selectivity to other interfering gases and the ability to detect ultralow concentrations of acetone as low as 10 ppb. The proposed non-noble metal doping strategy presents a practical solution for enhancing the sensitivity and selectivity of p-type semiconductor-based gas sensors. This approach holds great potential for practical gas-sensing applications due to their affordability and abundance, making them a cost-effective and versatile alternative to noble metal-catalyzed sensors.
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Affiliation(s)
- Lu Song
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Dehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Liangliang Xu
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Dehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jaewan Ahn
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Dehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jong Won Baek
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Dehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Dehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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11
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Mannino G, Serio G, Gaglio R, Maffei ME, Settanni L, Di Stefano V, Gentile C. Biological Activity and Metabolomics of Griffonia simplicifolia Seeds Extracted with Different Methodologies. Antioxidants (Basel) 2023; 12:1709. [PMID: 37760012 PMCID: PMC10525635 DOI: 10.3390/antiox12091709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/26/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
Griffonia simplicifolia, a tropical plant endemic to West Africa, is highly regarded for its significant pharmacological potential. The objective of this study was to evaluate the metabolomic profile and to explore the antioxidant properties, antiproliferative activity, and antimicrobial potential of G. simplicifolia seed extracts obtained through either maceration, microwave-assisted extraction (MAE), or Soxhlet extraction using water, acetone, methanol and ethanol as solvents. Overall, methanol possessed superior total extraction efficiency. HPLC analyses confirmed the efficacy of acetone and ethanol as optimal solvents for the extraction of flavonoids and flavan-3-ols, whereas MAE exhibited enhanced effectiveness in extracting N-containing compounds, including 5-hydroxytryptophan (5-HTP). HPLC-MS analyses identified forty-three compounds, including thirty-four phenolic compounds and nine N-containing molecules. Isomyricitrin, taxifolin and a flavonol glucuronide were the main polyphenols, whereas 5-HTP was the main N-containing compound. Hydroalcoholic G. simplicifolia extracts showed the highest radical scavenging and metal-reducing antioxidant power, suggesting that most of the contribution to antioxidant activity depends on the more polar bioactive compounds. G. simplicifolia extracts showed dose-dependent antiproliferative activity against three distinct cancer cell lines (HeLa, HepG2, and MCF-7), with notable variations observed among both the different extracts and cell lines and divergent GI50 values, emphasizing substantial discrepancies in cell sensitivity to the various extracts. Furthermore, G. simplicifolia extracts revealed antibiotic activity against Staphylococcus aureus. Our results highlight the potential of G. simplicifolia phytochemicals in the development of functional foods, nutraceuticals, and dietary supplements.
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Affiliation(s)
- Giuseppe Mannino
- Plant Physiology Unit, Department of Life Sciences and Systems Biology, University of Turin, Via Quarello 15/A, 10135 Turin, Italy;
| | - Graziella Serio
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy; (G.S.); (V.D.S.)
| | - Raimondo Gaglio
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy; (R.G.); (L.S.)
| | - Massimo E. Maffei
- Plant Physiology Unit, Department of Life Sciences and Systems Biology, University of Turin, Via Quarello 15/A, 10135 Turin, Italy;
| | - Luca Settanni
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy; (R.G.); (L.S.)
| | - Vita Di Stefano
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy; (G.S.); (V.D.S.)
| | - Carla Gentile
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy; (G.S.); (V.D.S.)
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12
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Cao Z, Jing R, Ma S, Wang J, Hu G, Wei G, Luo Q. Theoretical study on the interaction between acetone and BN monolayer doped with Ni for the clinical diagnosis of diabetes mellitus. Nanotechnology 2023; 34:445102. [PMID: 37489853 DOI: 10.1088/1361-6528/acea29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/25/2023] [Indexed: 07/26/2023]
Abstract
Endogenous volatile organic compounds (VOCs) in human exhaled gases can reflect human health status and be used for clinical diagnosis and health monitoring. Acetone is the sign VOC gases of diabetes mellitus. In order to find a potential material for the detection of acetone in the application of the clinical diagnosis of diabetes mellitus. The adsorption properties, including adsorption energy, adsorption distance, charge transfer, density of states, electron localization function and electrons density difference, of acetone on BN monolayer doped with Ni were comprehensively investigated based on density functional theory. The results show that there could be chemisorption between acetone and Ni-BN monolayer and Ni-BN monolayer is probably suitable gas sensitive material for the detection of acetone in the application of diabetes mellitus monitoring and clinical diagnosis.
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Affiliation(s)
- Zhengqin Cao
- College of Electrical Engineering, Chongqing University of Science and Technology, Chongqing, People's Republic of China
| | - Renjun Jing
- College of Electrical Engineering, Chongqing University of Science and Technology, Chongqing, People's Republic of China
| | - Shouxiao Ma
- Institute of Water Resources and Electric Power, Qinghai University, Xining City, Qinghai Province, People's Republic of China
| | - Jia Wang
- College of Medical Informatics, Chongqing Medical University, Chongqing, People's Republic of China
| | - Gang Hu
- College of Electrical Engineering, Chongqing University of Science and Technology, Chongqing, People's Republic of China
| | - Gang Wei
- College of Electrical Engineering, Chongqing University of Science and Technology, Chongqing, People's Republic of China
| | - Qiming Luo
- College of Electrical Engineering, Chongqing University of Science and Technology, Chongqing, People's Republic of China
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13
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Biagini D, Pugliese NR, Vivaldi FM, Ghimenti S, Lenzi A, De Angelis F, Ripszam M, Bruderer T, Armenia S, Cappeli F, Taddei S, Masi S, Francesco FD, Lomonaco T. Breath analysis combined with cardiopulmonary exercise testing and echocardiography for monitoring heart failure patients: the AEOLUS protocol. J Breath Res 2023; 17:046006. [PMID: 37524075 DOI: 10.1088/1752-7163/acec08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 07/31/2023] [Indexed: 08/02/2023]
Abstract
This paper describes the AEOLUS pilot study which combines breath analysis with cardiopulmonary exercise testing (CPET) and an echocardiographic examination for monitoring heart failure (HF) patients. Ten consecutive patients with a prior clinical diagnosis of HF with reduced left ventricular ejection fraction were prospectively enrolled together with 15 control patients with cardiovascular risk factors, including hypertension, type II diabetes or chronic ischemic heart disease. Breath samples were collected at rest and during CPET coupled with exercise stress echocardiography (CPET-ESE) protocol by means of needle trap micro-extraction and were analyzed through gas-chromatography coupled with mass spectrometry. The protocol also involved using of a selected ion flow tube mass spectrometer for a breath-by-breath isoprene and acetone analysis during exercise. At rest, HF patients showed increased breath levels of acetone and pentane, which are related to altered oxidation of fatty acids and oxidative stress, respectively. A significant positive correlation was observed between acetone and the gold standard biomarker NT-proBNP in plasma (r= 0.646,p< 0.001), both measured at rest. During exercise, some exhaled volatiles (e.g., isoprene) mirrored ventilatory and/or hemodynamic adaptation, whereas others (e.g., sulfide compounds and 3-hydroxy-2-butanone) depended on their origin. At peak effort, acetone levels in HF patients differed significantly from those of the control group, suggesting an altered myocardial and systemic metabolic adaptation to exercise for HF patients. These preliminary data suggest that concomitant acquisition of CPET-ESE and breath analysis is feasible and might provide additional clinical information on the metabolic maladaptation of HF patients to exercise. Such information may refine the identification of patients at higher risk of disease worsening.
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Affiliation(s)
- Denise Biagini
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Nicola R Pugliese
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Federico M Vivaldi
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Silvia Ghimenti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Alessio Lenzi
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Francesca De Angelis
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Matyas Ripszam
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Tobias Bruderer
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Silvia Armenia
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Federica Cappeli
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Stefano Taddei
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Stefano Masi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Fabio Di Francesco
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Tommaso Lomonaco
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
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14
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Aubourg SP, Rodríguez A, Trigo M, Medina I. Yield Enhancement of Valuable Lipid Compounds from Squid ( Doryteuthis gahi) Waste by Ethanol/ Acetone Extraction. Foods 2023; 12:2649. [PMID: 37509742 PMCID: PMC10379310 DOI: 10.3390/foods12142649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/06/2023] [Accepted: 07/08/2023] [Indexed: 07/30/2023] Open
Abstract
The study focused on the extraction of valuable lipid compounds from squid (Doryteuthis gahi) waste by a low-toxicity solvent mixture (ethanol/acetone, 50:50, v/v). The effect of the waste weight/solvent volume (WW/SV, g·mL-1) ratio and the number of extractions (NoE) on the total lipid (TL), phospholipid (PL), and tocopherol yields and on the fatty acid (FA) profile (eicosapentaenoic and docosahexaenoic acid contents; polyunsaturated FAs/saturated FAs and ω3/ω6 ratios) was investigated. As a result, an increased NoE led to an increased (p < 0.05) TL yield but a decreased (p < 0.05) proportion of PLs in the lipid extract. Additionally, a lower (p < 0.05) polyunsaturated FA/saturated FA ratio was detected by increasing the NoE. Some differences (p < 0.05) could be outlined as a result of increasing the WW/SV ratio; however, a definite trend for this extraction condition could not be concluded for any of the lipid parameters measured. Yield results were compared to those obtained by the conventional chloroform/methanol procedure. In order to attain an increased yield, the NoE required would depend on the polarity degree of the lipid molecule concerned. All ethanol/acetone extracting conditions tested led to remarkable yields for lipid compounds (PLs, α-tocopherol, ω3 FAs) and FA ratios with healthy, nutritional, and preserving properties.
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Affiliation(s)
- Santiago P Aubourg
- Department of Food Technology, Marine Research Institute (CSIC), c/E. Cabello, 6, 36208 Vigo, Spain
| | - Alicia Rodríguez
- Department of Food Science and Chemical Technology, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, c/Santos Dumont, 964, Santiago 8380000, Chile
| | - Marcos Trigo
- Department of Food Technology, Marine Research Institute (CSIC), c/E. Cabello, 6, 36208 Vigo, Spain
| | - Isabel Medina
- Department of Food Technology, Marine Research Institute (CSIC), c/E. Cabello, 6, 36208 Vigo, Spain
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15
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Arndt C, Palmquist KB, Gray TR. Examination of acetone findings in suspected drug-facilitated sexual assaults: A case series. J Forensic Sci 2023. [PMID: 37282845 DOI: 10.1111/1556-4029.15308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/25/2023] [Accepted: 05/31/2023] [Indexed: 06/08/2023]
Abstract
Acetone presence in human biological specimens can result from exogenous administration or endogenous production, resulting from diabetes, dietary composition, alcoholism, and stress response. Victims of drug-facilitated sexual assaults (DFSA) are understood to experience enhanced stress. At the Harris County Institute of Forensic Sciences (HCIFS), DFSA drug testing includes analysis of volatile compounds, ethanol, methanol, isopropanol, and acetone, by headspace gas chromatography/flame ionization detection. The prevalence of acetone-positive specimens in DFSA casework has been observed to exceed that of other human performance case types. In this report, DFSA cases received between 2019 and 2021 (n = 393) were reviewed and 41 acetone-positive cases were detailed. Overall, nearly 11% of the DFSA cases had acetone-positive blood or urine specimens, where 3% identified acetone only, 6% identified acetone and other drug(s), and 2% identified acetone, ethanol, and other drug(s). Acetone concentrations ranged from 0.010 to 0.147 g/100 mL in urine. Other drugs such as nor-carboxy-Δ9 -tetrahydrocannabinol, amphetamine, methamphetamine, ethanol, and benzoylecgonine were commonly detected. Elevated stress response encountered during DFSAs may facilitate the mechanism behind enhanced acetone production leading to increased identification. Limited availability of victim medical history precludes understanding the contribution of other disease states or physiological conditions. Nonetheless, the identification of acetone in DFSA specimens supports its potential as a biomarker of trauma in forensic toxicology casework and warrants future research within the community.
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Affiliation(s)
- Crystal Arndt
- Harris County Institute of Forensic Sciences, Houston, Texas, USA
| | | | - Teresa R Gray
- Harris County Institute of Forensic Sciences, Houston, Texas, USA
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16
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Muddassir M, Alarifi A, Abduh NAY, Saeed WS, Karami AM, Afzal M. Multifunctional Zn(II) Coordination Polymer as Highly Selective Fluorescent Sensor and Adsorbent for Dyes. Int J Mol Sci 2023; 24:ijms24108512. [PMID: 37239860 DOI: 10.3390/ijms24108512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 04/28/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023] Open
Abstract
A new Zn(II)-based coordination polymer (1) comprising the Schiff base ligand obtained by the condensation of 5-aminosalicylic acid and salicylaldehyde has been synthesized. This newly synthesized compound has been characterized by analytical and spectroscopic methods, and finally, by single-crystal X-ray diffraction technique in this study. The X-ray analysis reveals a distorted tetrahedral environment around the central Zn(II) center. This compound has been used as a sensitive and selective fluorescent sensor for acetone and Ag+ cations. The photoluminescence measurements indicate that in the presence of acetone, the emission intensity of 1 displays quenching at room temperature. However, other organic solvents caused meagre changes in the emission intensity of 1. Additionally, the fluorescence intensity of 1 has been examined in the presence of different ketones viz. cyclohexanone, 4-heptanone, and 5-nonanone, to assess the interaction between the C=O group of the ketones and the molecular framework of 1. Moreover, 1 displays a selective recognition of Ag+ in the aqueous medium by an enhancement in its fluorescence intensity, representing its high sensitivity for the detection of Ag+ ions in a water sample. Additionally, 1 displays the selective adsorption of cationic dyes (methylene blue and rhodamine B). Hence, 1 showcases its potential as an excellent luminescent probe to detect acetone, other ketones, and Ag+ with an exceptional selectivity, and displaying a selective adsorption of cationic dye molecules.
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Affiliation(s)
- Mohd Muddassir
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abdullah Alarifi
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Naaser A Y Abduh
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Waseem Sharaf Saeed
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | | | - Mohd Afzal
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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17
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Chizhov A, Kutukov P, Gulin A, Astafiev A, Rumyantseva M. Highly Active Nanocrystalline ZnO and Its Photo-Oxidative Properties towards Acetone Vapor. Micromachines (Basel) 2023; 14:mi14050912. [PMID: 37241536 DOI: 10.3390/mi14050912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 05/28/2023]
Abstract
Zinc oxide is one of the well-known photocatalysts, the potential applications of which are of great importance in photoactivated gas sensing, water and air purification, photocatalytic synthesis, among others. However, the photocatalytic performance of ZnO strongly depends on its morphology, composition of impurities, defect structure, and other parameters. In this paper, we present a route for the synthesis of highly active nanocrystalline ZnO using commercial ZnO micropowder and ammonium bicarbonate as starting precursors in aqueous solutions under mild conditions. As an intermediate product, hydrozincite is formed with a unique morphology of nanoplates with a thickness of about 14-15 nm, the thermal decomposition of which leads to the formation of uniform ZnO nanocrystals with an average size of 10-16 nm. The synthesized highly active ZnO powder has a mesoporous structure with a BET surface area of 79.5 ± 4.0 m2/g, an average pore size of 20 ± 2 nm, and a cumulative pore volume of 0.507 ± 0.051 cm3/g. The defect-related PL of the synthesized ZnO is represented by a broad band with a maximum at 575 nm. The crystal structure, Raman spectra, morphology, atomic charge state, and optical and photoluminescence properties of the synthesized compounds are also discussed. The photo-oxidation of acetone vapor over ZnO is studied by in situ mass spectrometry at room temperature and UV irradiation (λmax = 365 nm). The main products of the acetone photo-oxidation reaction, water and carbon dioxide, are detected by mass spectrometry, and the kinetics of their release under irradiation are studied. The effect of morphology and microstructure on the photo-oxidative activity of ZnO samples is demonstrated.
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Affiliation(s)
- Artem Chizhov
- Chemistry Department, Moscow State University, Moscow 119991, Russia
| | - Pavel Kutukov
- Chemistry Department, Moscow State University, Moscow 119991, Russia
| | - Alexander Gulin
- N.N. Semenov Federal Research Center for Chemical Physics of Russian Academy of Sciences, Moscow 119991, Russia
| | - Artyom Astafiev
- N.N. Semenov Federal Research Center for Chemical Physics of Russian Academy of Sciences, Moscow 119991, Russia
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Alghamdi BM, Alharbi NM, Alade IO, Sultan B, Aburuzaizah MM, Baroud TN, Drmosh QA. Regulating the Electron Depletion Layer of Au/V 2O 5/Ag Thin Film Sensor for Breath Acetone as Potential Volatile Biomarker. Nanomaterials (Basel) 2023; 13:1372. [PMID: 37110957 PMCID: PMC10144657 DOI: 10.3390/nano13081372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/07/2023] [Accepted: 04/12/2023] [Indexed: 06/19/2023]
Abstract
Human exhaled breath has been utilized to identify biomarkers for diseases such as diabetes and cancer. The existence of these illnesses is indicated by a rise in the level of acetone in the breath. The development of sensing devices capable of identifying the onset of lung cancer or diabetes is critical for the successful monitoring and treatment of these diseases. The goal of this research is to prepare a novel breath acetone sensor made of Ag NPs/V2O5 thin film/Au NPs by combining DC/RF sputtering and post-annealing as synthesis methods. The produced material was characterized using X-ray diffraction (XRD), UV-Vis, Raman, and atomic force microscopy (AFM). The results revealed that the sensitivity to 50 ppm acetone of the Ag NPs/V2O5 thin film/Au NPs sensor was 96%, which is nearly twice and four times greater than the sensitivity of Ag NPs/V2O5 and pristine V2O5, respectively. This increase in sensitivity can be attributed to the engineering of the depletion layer of V2O5 through the double activation of the V2O5 thin films with uniform distribution of Au and Ag NPs that have different work function values.
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Affiliation(s)
- Bader Mohammed Alghamdi
- Materials Science and Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia; (B.M.A.); (N.M.A.); (M.M.A.); (T.N.B.)
| | - Nawaf Mutab Alharbi
- Materials Science and Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia; (B.M.A.); (N.M.A.); (M.M.A.); (T.N.B.)
| | | | - Badriah Sultan
- Department of Physics, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Mohammed Mansour Aburuzaizah
- Materials Science and Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia; (B.M.A.); (N.M.A.); (M.M.A.); (T.N.B.)
| | - Turki N. Baroud
- Materials Science and Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia; (B.M.A.); (N.M.A.); (M.M.A.); (T.N.B.)
| | - Qasem A. Drmosh
- Materials Science and Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia; (B.M.A.); (N.M.A.); (M.M.A.); (T.N.B.)
- Interdisciplinary Research Centre for Hydrogen and Energy Storage (HES), King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia
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19
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Lazarova K, Christova D, Karashanova D, Georgieva B, Marovska G, Slavov A, Babeva T. Blending Approach Preparation of PVA- g-PMA Films with Embedded "Green" Synthesized Silver Nanoparticles for Acetone Optical Detection. Sensors (Basel) 2023; 23:2941. [PMID: 36991647 PMCID: PMC10056088 DOI: 10.3390/s23062941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/04/2023] [Accepted: 03/06/2023] [Indexed: 06/19/2023]
Abstract
The blending approach (also known as the ex-situ approach) was used for the deposition of thin composite films comprising poly(vinyl alcohol-graft-methyl acrylate) (PVA-g-PMA) and silver nanoparticles (AgNPs). Firstly, the copolymer aqueous dispersion was synthesized through the redox polymerization of methyl acrylate (MA) on poly(vinyl alcohol) (PVA) using ammonium cerium (IV) nitrate as the initiator. Then, AgNPs were synthesized through a "green" method using the water extract of lavender based on by-products of the essential oil industry, and then they were blended with the polymer. Dynamic light scattering (DLS) and transmission electron microscopy (TEM) were used to determine nanoparticle size, along with their stability over time in suspension, during the 30-day period. Thin films of the PVA-g-PMA copolymer, with different AgNP volume fractions varying between 0.008 and 0.260%, were deposited via the spin-coating method on Si substrates, and their optical properties were explored. UV-VIS-NIR spectroscopy and non-linear curve fitting were used for the determination of the refractive index, extinction coefficient, and thickness of the films, while photoluminescence measurements at room temperature were conducted for studying the emission of the films. The concentration dependence of film thickness was observed and showed that thickness increased linearly from 31 nm to 75 nm when the nanoparticles' weight content increased from 0.3 wt% to 2.3 wt%. The sensing properties toward acetone vapors were tested in a controlled atmosphere by measuring reflectance spectra before and during exposure to the analyte molecules in the same film spot; the swelling degree of films was calculated and compared to the corresponding undoped samples. It was shown that the concentration of AgNPs of 1.2 wt% in the films is optimal for the enhancement of the sensing response toward acetone. The influence of AgNPs on the films' properties was revealed and discussed.
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Affiliation(s)
- Katerina Lazarova
- Institute of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, Akad. G. Bonchev Str., bl. 109, 1113 Sofia, Bulgaria
| | - Darinka Christova
- Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev Str., bl. 103-A, 1113 Sofia, Bulgaria
| | - Daniela Karashanova
- Institute of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, Akad. G. Bonchev Str., bl. 109, 1113 Sofia, Bulgaria
| | - Biliana Georgieva
- Institute of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, Akad. G. Bonchev Str., bl. 109, 1113 Sofia, Bulgaria
| | - Gergana Marovska
- Department of Organic Chemistry and Inorganic Chemistry, Technological Faculty, University of Food Technologies, 26 Maritza Blvd, 4002 Plovdiv, Bulgaria
| | - Anton Slavov
- Department of Organic Chemistry and Inorganic Chemistry, Technological Faculty, University of Food Technologies, 26 Maritza Blvd, 4002 Plovdiv, Bulgaria
| | - Tsvetanka Babeva
- Institute of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, Akad. G. Bonchev Str., bl. 109, 1113 Sofia, Bulgaria
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20
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Manolis AS, Manolis TA, Manolis AA. Ketone Bodies and Cardiovascular Disease: An Alternate Fuel Source to the Rescue. Int J Mol Sci 2023; 24. [PMID: 36834946 DOI: 10.3390/ijms24043534] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/04/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
The increased metabolic activity of the heart as a pump involves a high demand of mitochondrial adenosine triphosphate (ATP) production for its mechanical and electrical activities accomplished mainly via oxidative phosphorylation, supplying up to 95% of the necessary ATP production, with the rest attained by substrate-level phosphorylation in glycolysis. In the normal human heart, fatty acids provide the principal fuel (40-70%) for ATP generation, followed mainly by glucose (20-30%), and to a lesser degree (<5%) by other substrates (lactate, ketones, pyruvate and amino acids). Although ketones contribute 4-15% under normal situations, the rate of glucose use is drastically diminished in the hypertrophied and failing heart which switches to ketone bodies as an alternate fuel which are oxidized in lieu of glucose, and if adequately abundant, they reduce myocardial fat delivery and usage. Increasing cardiac ketone body oxidation appears beneficial in the context of heart failure (HF) and other pathological cardiovascular (CV) conditions. Also, an enhanced expression of genes crucial for ketone break down facilitates fat or ketone usage which averts or slows down HF, potentially by avoiding the use of glucose-derived carbon needed for anabolic processes. These issues of ketone body utilization in HF and other CV diseases are herein reviewed and pictorially illustrated.
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21
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Obara K, Matsuoka Y, Iwata N, Abe Y, Ikegami Y, Fujii A, Yoshioka K, Tanaka Y. Dimethyl Sulfoxide Enhances Acetylcholine-Induced Contractions in Rat Urinary Bladder Smooth Muscle by Inhibiting Acetylcholinesterase Activities. Biol Pharm Bull 2023; 46:354-358. [PMID: 36724965 DOI: 10.1248/bpb.b22-00791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Dimethyl sulfoxide (DMSO) has been used not only as an experimental solvent, but also as a therapeutic agent for interstitial cystitis. The therapeutic effects of DMSO on interstitial cystitis are presumed to involve anti-inflammatory and analgesic effects. However, the effects of DMSO on urinary bladder smooth muscle (UBSM) have not been fully investigated. Thus, in this study, we investigated the effects of DMSO on rat UBSM contractions, and these effects were compared with those of acetone, which has a structure in which the sulfur of DMSO is replaced with carbon. DMSO (0.5-5%) enhanced acetylcholine (ACh)-induced contractions, whereas acetone (3 and 5%) suppressed them. Additionally, DMSO (5%) suppressed carbachol-induced contractions. DMSO/acetone (0.5-5%) inhibited 80 mM KCl-induced contractions in a concentration-dependent manner; however, the inhibitory effects of DMSO were weaker than those of acetone. The enhancing/suppressing effects of DMSO and acetone were almost completely abolished by wash out. DMSO and acetone (0.5-5%) inhibited recombinant human acetylcholinesterase (rhAChE) activity in a concentration-dependent manner. At 0.5 and 1%, the inhibitory effects of DMSO on rhAChE activity were more potent than those of acetone. These findings suggest that DMSO can enhance ACh-induced UBSM contractions and promote urinary bladder motility by inhibiting acetylcholinesterase (AChE), although DMSO also inhibits Ca2+ influx-mediated UBSM contractions. In addition, the sulfur atom in DMSO might play an important role in its enhancing effect on ACh-induced contractions by inhibiting AChE, as acetone did not enhance these contractions.
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Affiliation(s)
- Keisuke Obara
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
| | - Yuka Matsuoka
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
| | - Naoya Iwata
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
| | - Yukako Abe
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
| | - Yohei Ikegami
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
| | - Ayano Fujii
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
| | - Kento Yoshioka
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
| | - Yoshio Tanaka
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
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22
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Ochoa-Muñoz YH, Mejía de Gutiérrez R, Rodríguez-Páez JE. Metal Oxide Gas Sensors to Study Acetone Detection Considering Their Potential in the Diagnosis of Diabetes: A Review. Molecules 2023; 28. [PMID: 36770820 DOI: 10.3390/molecules28031150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 01/12/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023] Open
Abstract
Metal oxide (MOx) gas sensors have attracted considerable attention from both scientific and practical standpoints. Due to their promising characteristics for detecting toxic gases and volatile organic compounds (VOCs) compared with conventional techniques, these devices are expected to play a key role in home and public security, environmental monitoring, chemical quality control, and medicine in the near future. VOCs (e.g., acetone) are blood-borne and found in exhaled human breath as a result of certain diseases or metabolic disorders. Their measurement is considered a promising tool for noninvasive medical diagnosis, for example in diabetic patients. The conventional method for the detection of acetone vapors as a potential biomarker is based on spectrometry. However, the development of MOx-type sensors has made them increasingly attractive from a medical point of view. The objectives of this review are to assess the state of the art of the main MOx-type sensors in the detection of acetone vapors to propose future perspectives and directions that should be carried out to implement this type of sensor in the field of medicine.
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23
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Rodríguez A, Trigo M, Aubourg SP, Medina I. Optimisation of Low-Toxicity Solvent Employment for Total Lipid and Tocopherol Compound Extraction from Patagonian Squid By-Products. Foods 2023; 12:foods12030504. [PMID: 36766033 PMCID: PMC9914702 DOI: 10.3390/foods12030504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/12/2023] [Accepted: 01/18/2023] [Indexed: 01/24/2023] Open
Abstract
The extraction of total lipids and tocopherol compounds from Patagonian squid (Doriteuthis gahi) by-products (viscera, heads, skin, etc.), resulting from squid mantel commercialisation, was studied. An optimisation simplex-lattice design by employing low-toxicity solvents (ethanol, acetone, and ethyl acetate) was carried out taking into account their relative concentrations. The variance analysis of data showed that the quadratic model was statistically significant (p < 0.05); empirical coded equations were obtained as a function of the low-toxicity solvent ratios. The optimised lipid extraction was obtained by employing the 0.642/0.318/0.040 (ethanol/acetone/ethyl acetate) solvent ratio, respectively, leading to an 84% recovery of the total lipids extracted by the traditional procedure. In all extracting systems tested, the presence of α-, γ-, and δ-tocopherol compounds was detected, α-tocopherol being the most abundant. For α-, γ-, and δ-tocopherol compounds, the optimisation process showed that acetone extraction led to the highest concentrations in the lipid extract obtained (2736.5, 36.8, and 2.8 mg·kg-1 lipids, respectively). Taking into account the recovery yield on a by-product basis, the values obtained for the three tocopherols were included in the 88.0-97.7%, 80.0-95.0%, and 25-75% ranges, respectively, when compared to the traditional extraction. This study provides a novel and valuable possibility for α-tocopherol extraction from marine by-products.
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Affiliation(s)
- Alicia Rodríguez
- Department of Food Science and Chemical Technology, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, C/Santos Dumont 964, Santiago 8380000, Chile
| | - Marcos Trigo
- Department of Food Technology, Marine Research Institute (CSIC), c/E. Cabello 6., 36208 Vigo, Spain
| | - Santiago P. Aubourg
- Department of Food Technology, Marine Research Institute (CSIC), c/E. Cabello 6., 36208 Vigo, Spain
- Correspondence: ; Tel.: +34-986-231-930
| | - Isabel Medina
- Department of Food Technology, Marine Research Institute (CSIC), c/E. Cabello 6., 36208 Vigo, Spain
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24
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Wang N, Li S, Li Z, Gong Y, Li X. A Zn(II)-Metal-Organic Framework Based on 4-(4-Carboxy phenoxy) Phthalate Acid as Luminescent Sensor for Detection of Acetone and Tetracycline. Molecules 2023; 28:molecules28030999. [PMID: 36770667 PMCID: PMC9921817 DOI: 10.3390/molecules28030999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/14/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023] Open
Abstract
As hazardous environmental pollutants, residual tetracycline (TC) and acetone are harmful to the ecosystem. Therefore, it is necessary to detect the presence of these pollutants in the environment. In this work, using Zn (II) salt, 4-(4-carboxy phenoxy) phthalic acid (H3L), and 3,5-bis(1-imidazolyl) pyridine (BMP), a new metal-organic framework (Zn-MOF) known as [Zn3(BMP)2L2(H2O)4]·2H2O was synthesized using a one-pot hydrothermal method. The Zn-MOF has a three-dimensional framework based on the [Zn1N2O2] and [Zn2N2O4] nodes linked by a tridentate bridge BMP ligand and an L ligand with the μ1:η1η0/μ1:η1η0/μ0:η0η0 coordination mode. There were two kinds of left- and right-handed helix chains, Zn1-BMP and Zn1-BMP-Zn1-L. The complex was stable in aqueous solutions with pH values of 4-10. The Zn-MOF exhibited a strong emission band centered at 385 nm owing to the π*→π electron transition of the ligand. It showed high luminescence in some common organic solvents as well as in the aqueous solutions of pH 4-10. Interestingly, TC and acetone effectively quenched the luminescence of the Zn-MOF in aqueous solution and enabled the Zn-MOF to be used as a sensor to detect TC and acetone. The detection limits of TC and acetone were observed to be 3.34 µM and 0.1597%, respectively. Even in acidic (pH = 4) and alkaline (pH = 10) conditions, the Zn-MOF showed a stable luminescence sensing capability to detect TC. Luminescence sensing of the Zn-MOF for TC in urine and aquaculture wastewater systems was not affected by the interfering agent. Furthermore, the mechanism of sensing TC was investigated in this study. Fluorescence resonance energy transfer and photoinduced electron transfer were found to be the possible quenching mechanisms via UV-Vis absorption spectra/the excitation spectra measurements and DFT calculations.
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25
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Mi H, Huang X, Jar PYB. Influence of Acetone and Primer on Strength and Ductility of Chlorinated Poly(vinyl chloride). Polymers (Basel) 2023; 15:polym15030489. [PMID: 36771790 PMCID: PMC9920364 DOI: 10.3390/polym15030489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/12/2023] [Accepted: 01/14/2023] [Indexed: 01/20/2023] Open
Abstract
Primer is widely used to prepare bonding of chlorinated poly(vinyl chloride) (CPVC) pipe. The study examined the influences of primer and its major component, acetone, on CPVC's mechanical properties. Two types of CPVC product, sheet and pipe, were used in the mechanical testing. Sheet specimens were immersed in acetone or primer for 40 and 10 min, respectively, i.e., the maximum allowable time without mass loss, and then dried in air before the mechanical testing. Pipe (ring) specimens were treated either through immersion in acetone or primer for 30 min or in contact with these solvents locally on the inner surface for 2.5 h, and then air dried for 10.5 days before the mechanical testing. Results showed that CPVC's strength decreased after the absorption of these solvents, and air dry could remove acetone but not completely primer. The study also showed that pipe specimens by local contact with primer could generate brittle fracture. In view that sheet specimens always fractured in a ductile manner, brittle fracture of the pipe specimens could not be caused by CPVC degradation. Rather, strength decrease in the local region could provide a plausible explanation for the brittle fracture behavior, though further investigation is needed.
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26
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Voorrips SN, Boorsma EM, Beusekamp JC, DE-Boer RA, Connelly MA, Dullaart RPF, VAN-DER-Meer P, VAN-Veldhuisen DJ, Voors AA, Damman K, Westenbrink BD. Longitudinal Changes in Circulating Ketone Body Levels in Patients With Acute Heart Failure: A Post Hoc Analysis of the EMPA-Response-AHF Trial. J Card Fail 2023; 29:33-41. [PMID: 36244653 DOI: 10.1016/j.cardfail.2022.09.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 09/13/2022] [Accepted: 09/13/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Ketone bodies are endogenous fuels produced by the liver under conditions of metabolic or neurohormonal stress. Circulating ketone bodies are increased in patients with chronic heart failure (HF), yet little is known about the effect of acute HF on ketosis. We tested the hypothesis that ketogenesis is increased in patients with acute decompensated HF. METHODS AND RESULTS This was a post hoc analysis of 79 patients with acute HF included in the EMPA-RESPONSE-AHF trial, which compared sodium-dependent glucose-cotransporter protein 2 inhibitor treatment with empagliflozin for 30 days with placebo in patients with acute HF [NCT03200860]. Plasma concentrations of ketone bodies acetone, β-hydroxybutyrate, and acetoacetate were measured at baseline and 5 different timepoints. Changes in ketone bodies over time were monitored using repeated measures analysis of variance. In the total cohort, median total ketone body concentration was 251 µmol/L (interquartile range, 178-377 µmol/L) at baseline, which gradually decreased to 202 µmol/L (interquartile range, 156-240 µmol/L) at day 30 (P = .041). Acetone decreased from 60 µmol/L (interquartile range, 34-94 µmol/L) at baseline to 30 µmol/L (interquartile range, 21-42 µmol/L) ( P < .001), whereas β-hydroxybutyrate and acetoacetate remained stable over time. Higher acetone concentrations were correlated with higher N-terminal pro brain natriuretic peptide levels (r = 0.234; P = .039). Circulating ketone bodies did not differ between patients treated with empagliflozin or placebo throughout the study period. A higher acetone concentration at baseline was univariately associated with a greater risk of the composite end point, including in-hospital worsening HF, HF rehospitalizations, and all-cause mortality after 30 days. However, after adjustment for age and sex, acetone did not remain an independent predictor for the combined end point. CONCLUSIONS Circulating ketone body concentrations, and acetone in particular, were significantly higher during an episode of acute decompensated HF compared with after stabilization. Treatment with empagliflozin did not affect ketone body concentrations in patients with acute HF.
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Affiliation(s)
- S N Voorrips
- Department of Cardiology, University of Groningen, University Medical Center Groningen (UMCG), Groningen, the Netherlands
| | - E M Boorsma
- Department of Cardiology, University of Groningen, University Medical Center Groningen (UMCG), Groningen, the Netherlands
| | - J C Beusekamp
- Department of Cardiology, University of Groningen, University Medical Center Groningen (UMCG), Groningen, the Netherlands
| | - R A DE-Boer
- Department of Cardiology, University of Groningen, University Medical Center Groningen (UMCG), Groningen, the Netherlands; Department of Cardiology, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - M A Connelly
- Laboratory Corporation of America Holdings (Labcorp), Morrisville, North Carolina; and the
| | - R P F Dullaart
- Department of Internal Medicine, University Medical Center Groningen (UMCG), Groningen, the Netherlands
| | - P VAN-DER-Meer
- Department of Cardiology, University of Groningen, University Medical Center Groningen (UMCG), Groningen, the Netherlands
| | - D J VAN-Veldhuisen
- Department of Cardiology, University of Groningen, University Medical Center Groningen (UMCG), Groningen, the Netherlands
| | - A A Voors
- Department of Cardiology, University of Groningen, University Medical Center Groningen (UMCG), Groningen, the Netherlands
| | - K Damman
- Department of Cardiology, University of Groningen, University Medical Center Groningen (UMCG), Groningen, the Netherlands
| | - B D Westenbrink
- Department of Cardiology, University of Groningen, University Medical Center Groningen (UMCG), Groningen, the Netherlands.
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27
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Li T, Wang Z, Shi Y, Yao X. Preparation and Performance of Carbon-Based Ce-Mn Catalysts for Efficient Degradation of Acetone at Low Temperatures. Int J Environ Res Public Health 2022; 19:ijerph192416879. [PMID: 36554760 PMCID: PMC9779373 DOI: 10.3390/ijerph192416879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/09/2022] [Accepted: 12/09/2022] [Indexed: 05/28/2023]
Abstract
Based on the porous carbon material from citric acid residue, catalysts of different Ce-Mn ratios were prepared with incipient-wetness impregnation (IWI) to delve into their acetone-degrading performance and relevant mechanisms. When the Ce-Mn molar ratio is 0.8, the prepared catalyst Ce0.8-Mn/AC shows abundant and uniformly dispersed Mn and Ce particles on the surface. The content of Mn and Ce on the Ce0.8-Mn/AC surface reaches 5.64% and 0.75%, respectively. At the acetone concentration of 238 mg/m3 (100 ppm), the laws of acetone degradation in different catalysts at different catalyzing temperatures and with various oxygen concentrations were studied, and we found that the rate of acetone degradation by Ce0.8-Mn/AC can exceed 90% at 250 °C. Cerium oxide and manganese oxide are synergistic in the catalytic degradation of acetone. Adding cerium to manganese-based catalysts can increase the oxygen migration rate in the catalysts and thus raise the reduction rate of lattice oxygen in manganese oxide. The results offer new ideas and approaches for the efficient and comprehensive utilization of bio-fermentation by-products, and for the development of cheap and high degradation performance catalysts for acetone.
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Affiliation(s)
- Tong Li
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
- SINOPEC (Beijing) Research Institute of Chemical Industry Co., Ltd., Beijing 100013, China
| | - Zhibo Wang
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
| | - Yue Shi
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
| | - Xiaolong Yao
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
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28
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Yushkin A, Basko A, Balynin A, Efimov M, Lebedeva T, Ilyasova A, Pochivalov K, Volkov A. Effect of Acetone as Co-Solvent on Fabrication of Polyacrylonitrile Ultrafiltration Membranes by Non-Solvent Induced Phase Separation. Polymers (Basel) 2022; 14:4603. [PMID: 36365596 PMCID: PMC9657875 DOI: 10.3390/polym14214603] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 09/28/2023] Open
Abstract
For the first time, the presence of acetone in the casting solutions of polyacrylonitrile (PAN) in dimethylsulfoxide or N-methyl-2-pyrrolidone was studied with regards to thermodynamical aspects of phase separation of polymeric solutions induced by contact with non-solvent (water), formation and performance of porous membranes of ultrafiltration range. The positions of the liquid equilibrium binodals on the phase diagrams of these three-component and pseudo-three-component mixtures were determined. For PAN-N-methyl-2-pyrrolidone-water glass transition curve on a ternary phase diagram was plotted experimentally for the first time. The real-time evolution of the structure of mixtures of PAN with solvents (co-solvents) upon contact with a non-solvent (water) has been studied. The thermodynamic analysis of the phase diagrams of these mixtures, together with optical data, made it possible to propose a mechanism of structure formation during non-solvent induced phase separation of different mixtures. The addition of acetone promotes the formation of a spongy layer on the membrane surface, which decreases the probability of defect formation on the membrane surface and keeps finger-like macrovoids from the underlying layers of the membrane. It was shown that the molecular weight cut-off (MWCO) of the membranes can be improved from 58 down to 1.8 kg/mol by changing the acetone content, while polymer concentration remained the same.
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Affiliation(s)
- Alexey Yushkin
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia
| | - Andrey Basko
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 ul. Akademicheskaja, 153045 Ivanovo, Russia
| | - Alexey Balynin
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia
| | - Mikhail Efimov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia
| | - Tatyana Lebedeva
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 ul. Akademicheskaja, 153045 Ivanovo, Russia
| | - Anna Ilyasova
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 ul. Akademicheskaja, 153045 Ivanovo, Russia
| | - Konstantin Pochivalov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 ul. Akademicheskaja, 153045 Ivanovo, Russia
| | - Alexey Volkov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia
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29
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Dhanarasu M, RameshKumar KA, Maadeswaran P. Effect of acetone as an oxygenated additive with used sunflower oil biodiesel on performance, combustion and emission in diesel engine. Environ Technol 2022; 43:3682-3692. [PMID: 33998965 DOI: 10.1080/09593330.2021.1931471] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 04/08/2021] [Indexed: 06/12/2023]
Abstract
ABSTRACTA major problem that is confronting mankind is the rapid depletion of fossil resources creating an energy demand along with their environmental impact. Therefore, finding an alternate energy source is the primary goal to attain sustainable development. Biodiesel is a promising alternate energy source for compression ignition engines. But it has some drawbacks like lower thermal efficiency, higher emission of smoke, NOx, CO and HC. Adding fuel additives with biodiesel-diesel blends is a fruitful method to overcome these problems. In this work, acetone is used as an oxygenated fuel additive in the volumetric proportion of 5%, 10%, and 15% with biodiesel-diesel blend and named as B20A5, B20A10 and B20A15. The performance, combustion, and emission characteristics of single-cylinder, four-stroke, water-cooled vertical diesel engine has been evaluated. The experimental results revealed that B20A15 has resulted in a nominal increase in brake specific fuel consumption by 8%, brake thermal efficiency of 1%, and reduction in CO by 18.4%, smoke opacity by 4.46%, HC by 1.42%, and NOx by 4.36% when compared to diesel at full load condition.
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Affiliation(s)
- M Dhanarasu
- Department of Energy Science, Periyar University, Salem, India
| | - K A RameshKumar
- Department of Energy Science, Periyar University, Salem, India
| | - P Maadeswaran
- Department of Energy Science, Periyar University, Salem, India
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30
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Elzinga S, Dominguez-Alonzo J, Keledjian R, Douglass B, Raber JC. Acetone as Artifact of Analysis in Terpene Samples by HS-GC/MS. Molecules 2022; 27:molecules27186037. [PMID: 36144771 PMCID: PMC9501193 DOI: 10.3390/molecules27186037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 08/31/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022]
Abstract
Cannabis-infused product manufacturers often add terpenes to enhance flavor. Meanwhile, labeling requirements for these same products necessitate testing for residual solvent levels. We have found that heating terpene samples containing an oxygen or air atmosphere results in the detection of significantly higher levels of acetone when compared to the same compound in argon atmosphere using temperature regimes common to headspace autosampler routines. This formation was statistically significant (p = 0.05) for most of the predominant terpenes found in cannabis. The largest increase in acetone formation was seen for terpinolene which showed an 885% increase in oxygen atmosphere (4603.6 PPM) when compared to analysis under argon (519.9 PPM). Cannabinoids were shown to reduce this formation and explain why high levels of acetone are not reported in cannabis extracts, even though these can contain up to 40% terpenes.
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31
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Trioni MI, Cargnoni F, Americo S, Pargoletti E, Chiarello GL, Cappelletti G. Acetone and Toluene Gas Sensing by WO 3: Focusing on the Selectivity from First Principle Calculations. Nanomaterials (Basel) 2022; 12:nano12152696. [PMID: 35957127 PMCID: PMC9370314 DOI: 10.3390/nano12152696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/01/2022] [Accepted: 08/03/2022] [Indexed: 05/17/2023]
Abstract
Sensitivity and selectivity are the two major parameters that should be optimized in chemiresistive devices with boosted performances towards Volatile Organic Compounds (VOCs). Notwithstanding a plethora of metal oxides/VOCs combinations that have been investigated so far, a close inspection based on theoretical models to provide guidelines to enhance sensors features has been scarcely explored. In this work, we measured experimentally the sensor response of a WO3 chemiresistor towards gaseous acetone and toluene, observing a two orders of magnitude higher signal for the former. In order to gain insight on the observed selectivity, Density Functional Theory was then adopted to elucidate how acetone and toluene molecules adsorption may perturb the electronic structure of WO3 due to electrostatic interactions with the surface and hybridization with its electronic structure. The results of acetone adsorption suggest the activation of the carbonyl group for reactions, while an overall lower charge redistribution on the surface and the molecule was observed for toluene. This, combined with acetone's higher binding energy, justifies the difference in the final responses. Notably, the presence of surface oxygen vacancies, characterizing the nanostructure of the oxide, influences the sensing performances.
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Affiliation(s)
- Mario Italo Trioni
- National Research Council of Italy, Institute of Chemical Sciences and Technologies “Giulio Natta”, Via Golgi 19, 20133 Milano, Italy
- Department of Chemistry, University of Milano, Via Golgi 19, 20133 Milano, Italy
- Correspondence: (M.I.T.); (G.C.)
| | - Fausto Cargnoni
- National Research Council of Italy, Institute of Chemical Sciences and Technologies “Giulio Natta”, Via Golgi 19, 20133 Milano, Italy
| | - Stefano Americo
- Department of Chemistry, University of Milano, Via Golgi 19, 20133 Milano, Italy
| | - Eleonora Pargoletti
- Department of Chemistry, University of Milano, Via Golgi 19, 20133 Milano, Italy
| | - Gian Luca Chiarello
- Department of Chemistry, University of Milano, Via Golgi 19, 20133 Milano, Italy
| | - Giuseppe Cappelletti
- Department of Chemistry, University of Milano, Via Golgi 19, 20133 Milano, Italy
- Correspondence: (M.I.T.); (G.C.)
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32
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Tanaka H, Anno T, Takenouchi H, Koyama K, Kawasaki F, Kurokawa K, Okimoto N, Tomoda K, Kaneto H. Adult acetonemic vomiting complicated with low body weight in a subject with Mycobacterium avium complex pulmonary disease: a case report. J Int Med Res 2022; 50:3000605221118506. [PMID: 35996312 PMCID: PMC9421232 DOI: 10.1177/03000605221118506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Pulmonary diseases often cause significant health issues and nutritional
disorders. Weight loss and malnutrition are related to the severity of
obstructive disorders. Therefore, patients with such conditions often experience
low nutritional energy. Acetonemic vomiting is caused by acetonemic syndrome.
Previously, it was believe that acetonemic vomiting was observed only in
childhood. However, it was recently suggested that acetonemic vomiting can also
occur in adults. It is also considered that acetonemic vomiting can occur in
subjects with low body weight because stored carbohydrate levels are reduced and
fats are mainly used for energy. Consequently, large amounts of acetone are
produced, ultimately resulting in nausea and vomiting. In this study, we report
a case of adult acetonemic vomiting complicated by low body weight in a subject
with Mycobacterium avium complex pulmonary disease.
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Affiliation(s)
- Hitomi Tanaka
- Department of General Internal Medicine 1, Kawasaki Medical School, Okayama, Japan
| | - Takatoshi Anno
- Department of General Internal Medicine 1, Kawasaki Medical School, Okayama, Japan
| | - Haruka Takenouchi
- Department of General Internal Medicine 1, Kawasaki Medical School, Okayama, Japan
| | - Katsumasa Koyama
- Department of General Internal Medicine 1, Kawasaki Medical School, Okayama, Japan
| | - Fumiko Kawasaki
- Department of General Internal Medicine 1, Kawasaki Medical School, Okayama, Japan
| | - Katsumi Kurokawa
- Department of General Internal Medicine 1, Kawasaki Medical School, Okayama, Japan
| | - Niro Okimoto
- Department of General Internal Medicine 1, Kawasaki Medical School, Okayama, Japan
| | - Koichi Tomoda
- Department of General Internal Medicine 1, Kawasaki Medical School, Okayama, Japan
| | - Hideaki Kaneto
- Department of Diabetes, Endocrinology and Metabolism, Kawasaki Medical School, Kurashiki, Japan
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D’Arco A, Mancini T, Paolozzi MC, Macis S, Mosesso L, Marcelli A, Petrarca M, Radica F, Tranfo G, Lupi S, Della Ventura G. High Sensitivity Monitoring of VOCs in Air through FTIR Spectroscopy Using a Multipass Gas Cell Setup. Sensors (Basel) 2022; 22:s22155624. [PMID: 35957181 PMCID: PMC9370991 DOI: 10.3390/s22155624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/15/2022] [Accepted: 07/22/2022] [Indexed: 05/02/2023]
Abstract
Human exposure to Volatile Organic Compounds (VOCs) and their presence in indoor and working environments is recognized as a serious health risk, causing impairments of varying severities. Different detecting systems able to monitor VOCs are available in the market; however, they have significant limitations for both sensitivity and chemical discrimination capability. During the last years we studied systematically the use of Fourier Transform Infrared (FTIR) spectroscopy as an alternative, powerful tool for quantifying VOCs in air. We calibrated the method for a set of compounds (styrene, acetone, ethanol and isopropanol) by using both laboratory and portable infrared spectrometers. The aim was to develop a new, and highly sensitive sensor system for VOCs monitoring. In this paper, we improved the setup performance, testing the feasibility of using a multipass cell with the aim of extending the sensitivity of our system down to the part per million (ppm) level. Considering that multipass cells are now also available for portable instruments, this study opens the road for the design of new high-resolution devices for environmental monitoring.
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Affiliation(s)
- Annalisa D’Arco
- National Institute for Nuclear Physics Laboratori Nazionali Frascati (INFN-LNF), Via E. Fermi 54, 00044 Frascati, Italy;
- Department of Physics, University of Rome ‘La Sapienza’, P.le A. Moro 2, 00185 Rome, Italy; (T.M.); (S.M.); (S.L.)
- Correspondence:
| | - Tiziana Mancini
- Department of Physics, University of Rome ‘La Sapienza’, P.le A. Moro 2, 00185 Rome, Italy; (T.M.); (S.M.); (S.L.)
- National Institute for Nuclear Physics Section Rome1, P.le A. Moro 2, 00185 Rome, Italy;
| | - Maria Chiara Paolozzi
- Department of Science, University Rome Tre, Largo San Leonardo Murialdo 1, 00146 Rome, Italy; (M.C.P.); (L.M.); (G.D.V.)
| | - Salvatore Macis
- Department of Physics, University of Rome ‘La Sapienza’, P.le A. Moro 2, 00185 Rome, Italy; (T.M.); (S.M.); (S.L.)
- National Institute for Nuclear Physics Section Rome1, P.le A. Moro 2, 00185 Rome, Italy;
| | - Lorenzo Mosesso
- Department of Science, University Rome Tre, Largo San Leonardo Murialdo 1, 00146 Rome, Italy; (M.C.P.); (L.M.); (G.D.V.)
| | - Augusto Marcelli
- National Institute for Nuclear Physics Laboratori Nazionali Frascati (INFN-LNF), Via E. Fermi 54, 00044 Frascati, Italy;
- Rome International Centre for Materials Science Superstipes, Via dei Sabelli 119A, 00185 Rome, Italy
| | - Massimo Petrarca
- National Institute for Nuclear Physics Section Rome1, P.le A. Moro 2, 00185 Rome, Italy;
- Department of Basic and Applied Sciences for Engineering (SBAI), University of Rome ’La Sapienza’, Via Scarpa 16, 00161 Rome, Italy
| | - Francesco Radica
- Department of Engineering and Geology, University Gabriele d’Annunzio Chieti-Pescara, Via dei Vestini, Campus Universitario, 66100 Chieti, Italy;
| | - Giovanna Tranfo
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL, Monte Porzio Catone, 00078 Rome, Italy;
| | - Stefano Lupi
- Department of Physics, University of Rome ‘La Sapienza’, P.le A. Moro 2, 00185 Rome, Italy; (T.M.); (S.M.); (S.L.)
- National Institute for Nuclear Physics Section Rome1, P.le A. Moro 2, 00185 Rome, Italy;
| | - Giancarlo Della Ventura
- Department of Science, University Rome Tre, Largo San Leonardo Murialdo 1, 00146 Rome, Italy; (M.C.P.); (L.M.); (G.D.V.)
- INGV, Via di Vigna Murata 605, 00143 Rome, Italy
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Aubourg SP, Trigo M, González MJ, Lois S, Medina I. Comparative Study of Bioactive Lipid Extraction from Squid (Doryteuthis gahi) by-Products by Green Solvents. Foods 2022; 11. [PMID: 35892773 DOI: 10.3390/foods11152188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/14/2022] [Accepted: 07/21/2022] [Indexed: 11/16/2022] Open
Abstract
A novel approach of bioactive lipid extraction by different green solvents was carried out on squid (Doryteuthis gahi) by-products. By-products (viscera, heads, skin, tails, etc.), considered as a single product, were subjected to the following solvent systems: ethanol, acetone, ethyl acetate, 1/1 ethanol/acetone, 1/1 ethanol/ethyl acetate, and 1/1 acetone/ethyl acetate. Analyses carried out included lipid yield, lipid class content, and fatty acid (FA) composition. Results were compared to the lipid extract obtained by the traditional procedure (1/1 chloroform/methanol). Lipid yields obtained by green solvents led to a 33.4−73.2% recovery compared to traditional extraction; the highest values (p < 0.05) were obtained by ethanol-containing systems. Compared to the traditional procedure, ethanol systems showed an 85.8−90.3% recovery of phospholipid compounds and no differences (p > 0.05) in the ω3/ω6 ratio. Green-extracting systems led to higher average values for eicosapentaenoic acid content (15.66−18.56 g·100 g−1 total FAs) and polyene index (1.93−3.29) than chloroform/methanol extraction; differences were significant (p < 0.05) for systems including acetone and ethyl acetate. No differences (p > 0.05) were detected for docosahexaenoic acid content between the traditional procedure and green systems, with all values being included in the 31.12−32.61 g·100 g−1 total FA range. The suitability of EtOH-containing green systems for extraction of bioactive lipid compounds from squid by-products was concluded.
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Sreekantan S, Yong AX, Basiron N, Ahmad F, De'nan F. Effect of Solvent on Superhydrophobicity Behavior of Tiles Coated with Epoxy/PDMS/SS. Polymers (Basel) 2022; 14:2406. [PMID: 35745983 DOI: 10.3390/polym14122406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/04/2022] [Accepted: 06/08/2022] [Indexed: 12/10/2022] Open
Abstract
Superhydrophobic coatings are widely applied in various applications due to their water-repelling characteristics. However, producing a durable superhydrophobic coating with less harmful low surface materials and solvents remains a challenge. Therefore, the aim of this work is to study the effects of three different solvents in preparing a durable and less toxic superhydrophobic coating containing polydimethylsiloxane (PDMS), silica solution (SS), and epoxy resin (DGEBA). A simple sol-gel method was used to prepare a superhydrophobic coating, and a spray-coating technique was employed to apply the superhydrophobic coating on tile substrates. The coated tile substrates were characterized for water contact angle (WCA) and tilting angle (TA) measurements, Field-Emission Scanning Electron Microscopy (FESEM), Atomic Force Microscopy (AFM), and Fourier Transform Infrared Spectroscopy (FTIR). Among 3 types of solvent (acetone, hexane, and isopropanol), a tile sample coated with isopropanol-added solution acquires the highest water contact angle of 152 ± 2° with a tilting angle of 7 ± 2° and a surface roughness of 21.80 nm after UV curing for 24 h. The peel off test showed very good adherence of the isopropanol-added solution coating on tiles. A mechanism for reactions that occur in the best optimized solvent is proposed.
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Sülzner N, Haberhauer J, Hättig C, Hellweg A. Prediction of acid pK a values in the solvent acetone based on COSMO-RS. J Comput Chem 2022; 43:1011-1022. [PMID: 35460090 DOI: 10.1002/jcc.26864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/25/2022] [Accepted: 03/29/2022] [Indexed: 11/08/2022]
Abstract
In this contribution we extent the use of the conductor-like screening model for realistic solvation (COSMO-RS) to the prediction of pKa values in acetone, a commonly used dipolar aprotic solvent. For this, we calculated the Gibbs free energy of dissociation of 120 organic acids (nine acrylic acids, 87 benzoic acids, nine phenols, and 15 benzenesulfonamides) using COSMO-RS at the two levels BP-TZVP and BP-TZVPD-FINE and determined the parameters for a linear free energy relation for the p K a prediction by performing linear fits to experimental values. Our results suggest that the data set dissects into two groups, with the phenols being different from the other three subsets. The acrylic and benzoic acids and the sulfonamides can be treated together and yield an excellent linear correlation ( r 2 > 0.95 ) with an RMSD of only ~0.3. The slope is found to be significantly smaller than the theoretical value ( 1 / RT ln 10 ), only 45% of it, which is in accordance with findings in the literature. The phenols, however, while similarly well correlated in their own subset with an RMSD of 1.7-1.9, exhibit a slope larger than one. We discuss both a higher uncertainty in the reference values as well as physical origins as possible reasons.
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Affiliation(s)
- Niklas Sülzner
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, Bochum, 44780, Germany
| | - Julia Haberhauer
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, Bochum, 44780, Germany
| | - Christof Hättig
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, Bochum, 44780, Germany
| | - Arnim Hellweg
- Dassault Systèmes Deutschland GmbH, Am Kabellager 11-15, Köln, 51063, Germany
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Xue C, Zhang Y, Liu B, Gao S, Yang H, Li P, Hoa ND, Xu Y, Zhang Z, Niu J, Liao X, Cui D, Jin H. Smartphone Case-Based Gas Sensing Platform for On-site Acetone Tracking. ACS Sens 2022; 7:1581-1592. [PMID: 35536008 DOI: 10.1021/acssensors.2c00603] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Gas sensor-embedded smartphones would offer the opportunity of on-site tracking of gas molecules for various applications, for example, harmful air pollutant alarms or noninvasive assessment of health status. Nevertheless, high power consumption and difficulty in replacing malfunctioned sensors as well as limited space in the smartphone to host the sensor restrain the relevant advancements. In this article, we create a smartphone case-based sensing platform by integrating the functional units into a smartphone case, which performs a low detection limit of 117 ppb to acetone and high specificity. Particularly, dimming glass-regulated light fidelity (Li-Fi) communication is successfully developed, allowing the sensing platform to operate with relatively low power consumption (around 217 mW). Experimental proof on harmful gas sensing and potential clinic application is implemented with the sensing platform, demonstrating satisfactory sensing performance and acceptable health risk pre-warning accuracy (87%). Thus, the developed smartphone case-based sensing platform would be a good candidate for realizing harmful gas alarms and noninvasive assessment of health status.
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Affiliation(s)
- Cuili Xue
- Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yuna Zhang
- Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Bin Liu
- Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Shan Gao
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Hao Yang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Peng Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Nguyen Duc Hoa
- International Training Institute for Material Science, Hanoi University of Science and Technology, Hanoi 112400, Vietnam
| | - Yuli Xu
- Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Zhenghu Zhang
- Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Jiaqi Niu
- Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | | | - Daxiang Cui
- Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
- National Engineering Research Center for Nanotechnology, Shanghai 200241, P. R. China
| | - Han Jin
- Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
- National Engineering Research Center for Nanotechnology, Shanghai 200241, P. R. China
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Zhang C, McElroy AC, Liberatore HK, Alexander NLM, Knappe DR. Stability of Per- and Polyfluoroalkyl Substances in Solvents Relevant to Environmental and Toxicological Analysis. Environ Sci Technol 2022; 56:6103-6112. [PMID: 34734715 PMCID: PMC9065217 DOI: 10.1021/acs.est.1c03979] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Per- and polyfluoroalkyl substances (PFASs) are widely used anthropogenic chemicals. For environmental and toxicological analysis, it is important to understand the stability of PFASs, including novel per- and polyfluoroalkyl ether acids (PFEAs), in commonly used solvents. In this study, we investigated the effects of PFAS characteristics, solvent type, water-to-organic solvent ratio, and temperature on the stability of 21 PFASs including 18 PFEAs. None of the studied PFASs showed measurable degradation in deionized water, methanol, or isopropyl alcohol over 30 days; however, nine PFEAs degraded in the polar aprotic solvents acetonitrile, acetone, and dimethyl sulfoxide (DMSO). PFEA degradation followed first-order kinetics, and first-order rate constants increased with increasing temperature and with decreasing water-to-organic solvent ratio. Monoethers with a carboxylic acid functional group adjacent to a tertiary carbon (>CF-COOH) degraded more rapidly than multiethers in which the carboxylic acid moiety was adjacent to repeating -CF2O- groups. In contrast, monoethers with a carboxylic acid moiety adjacent to a secondary carbon (-CF2-COOH) were stable in all tested solvents. Using high-resolution mass spectrometry, we determined that PFEAs with a >CF-COOH group were stoichiometrically decarboxylated in aprotic solvents and formed products with a >CFH group; e.g., hexafluoropropylene oxide-dimer acid (HFPO-DA or GenX), HFPO-trimer acid, and HFPO-tetramer acid were stoichiometrically converted to Fluoroethers E-1, E-2, and E-3, respectively. PFEA degradation results highlight the importance of solvent choice when preparing dosing solutions and performing extractions for environmental and toxicological assessments of PFEAs.
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Affiliation(s)
- Chuhui Zhang
- Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Amie C. McElroy
- Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Hannah K. Liberatore
- Center for Environmental Measurement and Modeling, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States
| | - Nancy Lee M. Alexander
- Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Detlef R.U. Knappe
- Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
- Center for Human Health and the Environment, North Carolina State University, Raleigh, North Carolina 27695, United States
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Othman NH, Mustapha M, Sallih N, Ahmad A, Mustapha F, Ismail MC. The Effect of Residual Solvent in Carbon-Based Filler Reinforced Polymer Coating on the Curing Properties, Mechanical and Corrosive Behaviour. Materials (Basel) 2022; 15:ma15103445. [PMID: 35629473 PMCID: PMC9147290 DOI: 10.3390/ma15103445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/22/2022] [Accepted: 04/02/2022] [Indexed: 11/16/2022]
Abstract
Solution mixing, which is one of the standard methods of producing Graphene−based Nanocomposites (GPC) may not be as efficient as it is expected due to the presence of residual solvent in the cured product. Therefore, the influence of including acetone in the preparation of Graphene Oxide−based epoxy coating (GO−EP) on the curing behaviour, mechanical and corrosive behaviour was studied. FTIR and TGA analysis confirmed that the GO−EP prepared by ultrasonication (GO−EP U) indicated the presence of more low−molecular−weight/low crosslinked (LMW/LC) sites than GO−EP prepared by stirring (GO−EP MS). Meanwhile, the tensile strength and hardness of GO−EP MS was 20% and 10% better than GO−EP U which confirmed that the presence of a lower number of LMW/LC could prevail over the agglomeration of GO sheets in the GO−EP MS. Pull−off adhesion tests also confirms that the presence of remaining acetone would cause the poor bonding between metal and coating in GO−EP U. This is reflected on the electrochemical impedance spectroscopy (EIS) results, where the GO−EP U failed to provide substantial barrier protection for carbon steel after 140 days of immersion in 3.5 wt% NaCl. Therefore, it is essential to consider the solvent effect when solvent is used in the preparation of a coating to prevent the premature failure of high−performance polymer coatings.
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Affiliation(s)
- Nurul Husna Othman
- Center for Corrosion Research, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia; (N.H.O.); (M.C.I.)
| | - Mazli Mustapha
- Center for Corrosion Research, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia; (N.H.O.); (M.C.I.)
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia; (N.S.); (A.A.)
- Correspondence:
| | - Nabihah Sallih
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia; (N.S.); (A.A.)
| | - Azlan Ahmad
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia; (N.S.); (A.A.)
| | - Faizal Mustapha
- Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Malaysia;
| | - Mokhtar Che Ismail
- Center for Corrosion Research, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia; (N.H.O.); (M.C.I.)
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia; (N.S.); (A.A.)
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El Hadki H, Gámez VG, Dalbouha S, Marakchi K, Kabbaj OK, Komiha N, Carvajal M, Senent Diez ML. Theoretical spectroscopic study of acetyl (CH 3CO), vinoxy (CH 2CHO), and 1-methylvinoxy (CH 3COCH 2) radicals. Barrierless formation processes of acetone in the gas phase. Open Res Eur 2022; 1:116. [PMID: 37645120 PMCID: PMC10445905 DOI: 10.12688/openreseurope.14073.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/10/2022] [Indexed: 08/31/2023]
Abstract
Background: Acetone is present in the earth´s atmosphere and extra-terrestrially. The knowledge of its chemical history in these environments represents a challenge with important implications for global tropospheric chemistry and astrochemistry. The results of a search for efficient barrierless pathways producing acetone from radicals in the gas phase are described in this paper. The spectroscopic properties of radicals needed for their experimental detection are provided. Methods: The reactants were acetone fragments of low stability and small species containing C, O and H atoms. Two exergonic bimolecular addition reactions involving the radicals CH 3, CH 3CO, and CH 3COCH 2, were found to be competitive according to the kinetic rates calculated at different temperatures. An extensive spectroscopic study of the radicals CH 3COCH 2 and CH 3CO, as well as the CH 2CHO isomer, was performed. Rovibrational parameters, anharmonic vibrational transitions, and excitations to the low-lying excited states are provided. For this purpose, RCCSD(T)-F12 and MRCI/CASSCF calculations were performed. In addition, since all the species presented non-rigid properties, a variational procedure of reduced dimensionality was employed to explore the far infrared region. Results: The internal rotation barriers were determined to be V 3=143.7 cm -1 (CH 3CO), V 2=3838.7 cm -1 (CH 2CHO) and V 3=161.4 cm -1 and V 2=2727.5 cm -1 (CH 3COCH 2).The splitting of the ground vibrational state due to the torsional barrier have been computed to be 2.997 cm -1, 0.0 cm -1, and 0.320 cm -1, for CH 3CO, CH 2CHO, and CH 3COCH 2, respectively. Conclusions: Two addition reactions, H+CH 3COCH 2 and CH 3+CH 3CO, could be considered barrierless formation processes of acetone after considering all the possible formation routes, starting from 58 selected reactants, which are fragments of the molecule. The spectroscopic study of the radicals involved in the formation processes present non-rigidity. The interconversion of their equilibrium geometries has important spectroscopic effects on CH 3CO and CH 3COCH 2, but is negligible for CH 2CHO.
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Affiliation(s)
- Hamza El Hadki
- Laboratoire de Spectroscopie, Modélisation Moléculaire, Matériaux, Nanomatériaux, Eau et Environnement, LS3MN2E/CERNE2D, Faculté des Sciences Rabat, Université Mohammed V, Rabat, BP1014, Morocco
| | - Victoria Guadalupe Gámez
- Departamento de Química y Física Teóricas, IEM-CSIC, Unidad Asociada GIFMAN, CSIC-UHU, Madrid, 28006, Spain
| | - Samira Dalbouha
- Laboratoire de Spectroscopie, Modélisation Moléculaire, Matériaux, Nanomatériaux, Eau et Environnement, LS3MN2E/CERNE2D, Faculté des Sciences Rabat, Université Mohammed V, Rabat, BP1014, Morocco
- Equipe de recherche : Matériaux et Applications Environnementales, Laboratoire de Chimie Appliquée et Environnement, Département de chimie, Faculté des Sciences d’Agadir, Université Ibn Zohr, Agadir, B.P 8106, Morocco
| | - Khadija Marakchi
- Laboratoire de Spectroscopie, Modélisation Moléculaire, Matériaux, Nanomatériaux, Eau et Environnement, LS3MN2E/CERNE2D, Faculté des Sciences Rabat, Université Mohammed V, Rabat, BP1014, Morocco
| | - Oum Keltoum Kabbaj
- Laboratoire de Spectroscopie, Modélisation Moléculaire, Matériaux, Nanomatériaux, Eau et Environnement, LS3MN2E/CERNE2D, Faculté des Sciences Rabat, Université Mohammed V, Rabat, BP1014, Morocco
| | - Najia Komiha
- Laboratoire de Spectroscopie, Modélisation Moléculaire, Matériaux, Nanomatériaux, Eau et Environnement, LS3MN2E/CERNE2D, Faculté des Sciences Rabat, Université Mohammed V, Rabat, BP1014, Morocco
| | - Miguel Carvajal
- Departamento de Ciencias Integradas, Centro de Estudios Avanzados en Física, Matemática y Computación; Unidad Asociada GIFMAN, CSIC-UHU, Universidad de Huelva, Huelva, 21071, Spain
- Instituto Universitario Carlos I de Física Teórica y Computacional, University of Granada, Granada, Spain
| | - Maria Luisa Senent Diez
- Departamento de Química y Física Teóricas, IEM-CSIC, Unidad Asociada GIFMAN, CSIC-UHU, Madrid, 28006, Spain
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Falkenhain K, Locke SR, Lowe DA, Lee T, Singer J, Weiss EJ, Little JP. Use of an mHealth Ketogenic Diet App Intervention and User Behaviors Associated With Weight Loss in Adults With Overweight or Obesity: Secondary Analysis of a Randomized Clinical Trial. JMIR Mhealth Uhealth 2022; 10:e33940. [PMID: 35285809 PMCID: PMC8961343 DOI: 10.2196/33940] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/19/2021] [Accepted: 01/28/2022] [Indexed: 01/23/2023] Open
Abstract
Background Low-carbohydrate ketogenic diets are a viable method to lose weight that have regained popularity in recent years. Technology in the form of mobile health (mHealth) apps allows for scalable and remote delivery of such dietary interventions and are increasingly being used by the general population without direct medical supervision. However, it is currently unknown which factors related to app use and user behavior are associated with successful weight loss. Objective First, to describe and characterize user behavior, we aim to examine characteristics and user behaviors over time of participants who were enrolled in a remotely delivered clinical weight loss trial that tested an mHealth ketogenic diet app paired with a breath acetone biofeedback device. Second, to identify variables of importance to weight loss at 12 weeks that may offer insight for future development of dietary mHealth interventions, we aim to explore which app- and adherence-related user behaviors characterized successful weight loss. Methods We analyzed app use and self-reported questionnaire data from 75 adults with overweight or obesity who participated in the intervention arm of a previous weight loss study. We examined data patterns over time through linear mixed models and performed correlation, linear regression, and causal mediation analyses to characterize diet-, weight-, and app-related user behavior associated with weight loss. Results In the context of a low-carbohydrate ketogenic diet intervention delivered remotely through an mHealth app paired with a breath acetone biofeedback device, self-reported dietary adherence seemed to be the most important factor to predict weight loss (β=–.31; t54=–2.366; P=.02). Furthermore, self-reported adherence mediated the relationship between greater app engagement (from c=–0.008, 95% CI –0.014 to –0.0019 to c’=–0.0035, 95% CI –0.0094 to 0.0024) or higher breath acetone levels (from c=–1.34, 95% CI –2.28 to –0.40 to c’=–0.40, 95% CI –1.42 to 0.62) and greater weight loss, explaining a total of 27.8% and 28.8% of the variance in weight loss, respectively. User behavior (compliance with weight measurements and app engagement) and adherence-related aspects (breath acetone values and self-reported dietary adherence) over time differed between individuals who achieved a clinically significant weight loss of >5% and those who did not. Conclusions Our in-depth examination of app- and adherence-related user behaviors offers insight into factors associated with successful weight loss in the context of mHealth interventions. In particular, our finding that self-reported dietary adherence was the most important metric predicting weight loss may aid in the development of future mHealth dietary interventions. Trial Registration ClinicalTrials.gov NCT04165707; https://clinicaltrials.gov/ct2/show/NCT04165707 International Registered Report Identifier (IRRID) RR2-10.2196/19053
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Affiliation(s)
- Kaja Falkenhain
- School of Health and Exercise Sciences, The University of British Columbia Okanagan, Kelowna, BC, Canada
| | - Sean R Locke
- Department of Kinesiology, Brock University, St. Catherines, ON, Canada
| | - Dylan A Lowe
- Eureka Research Platform, San Francisco, CA, United States
| | - Terry Lee
- Centre for Health Evaluation and Outcome Sciences, School of Population and Public Health, The University of British Columbia, Vancouver, BC, Canada
| | - Joel Singer
- Centre for Health Evaluation and Outcome Sciences, School of Population and Public Health, The University of British Columbia, Vancouver, BC, Canada
| | - Ethan J Weiss
- Cardiovascular Research Institute, University of California San Francisco, San Francisco, CA, United States
| | - Jonathan P Little
- School of Health and Exercise Sciences, The University of British Columbia Okanagan, Kelowna, BC, Canada
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Rissanen K, Aalto J, Gessler A, Hölttä T, Rigling A, Schaub M, Bäck J. Drought effects on volatile organic compound emissions from Scots pine stems. Plant Cell Environ 2022; 45:23-40. [PMID: 34723383 DOI: 10.1111/pce.14219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 09/14/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
Tree stems have been identified as sources of volatile organic compounds (VOCs) that play important roles in tree defence and atmospheric chemistry. Yet, we lack understanding on the magnitude and environmental drivers of stem VOC emissions in various forest ecosystems. Due to the increasing importance of extreme drought, we studied drought effects on the VOC emissions from mature Scots pine (Pinus sylvestris L.) stems. We measured monoterpenes, acetone, acetaldehyde and methanol emissions with custom-made stem chambers, online PTR-MS and adsorbent sampling in a drought-prone forest over the hot-dry summer of 2018 and compared the emission rates and dynamics between trees in naturally dry conditions and under long-term irrigation (drought release). The pine stems were significant monoterpene sources. The stem monoterpene emissions potentially originated from resin, based on their similar monoterpene spectra. The emission dynamics of all VOCs followed temperature at a daily scale, but monoterpene and acetaldehyde emission rates decreased nonlinearly with drought over the summer. Despite the dry conditions, large peaks of monoterpene, acetaldehyde and acetone emissions occurred in late summer potentially due to abiotic or biotic stressors. Our results highlight the potential importance of stem emissions in the ecosystem VOC budget, encouraging further studies in diverse environments.
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Affiliation(s)
- Kaisa Rissanen
- Institute for Atmospheric and Earth System Research/Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Juho Aalto
- Institute for Atmospheric and Earth System Research/Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Arthur Gessler
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
- Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, ETH Zurich, Zurich, Switzerland
| | - Teemu Hölttä
- Institute for Atmospheric and Earth System Research/Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Andreas Rigling
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
- Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, ETH Zurich, Zurich, Switzerland
| | - Marcus Schaub
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
| | - Jaana Bäck
- Institute for Atmospheric and Earth System Research/Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
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Kim YY, Uezu K. Functional Microfiber Nonwoven Fabric with Copper Ion-Immobilized Polymer Brush for Detection and Adsorption of Acetone Gas. Sensors (Basel) 2021; 22:91. [PMID: 35009635 DOI: 10.3390/s22010091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 12/15/2021] [Accepted: 12/15/2021] [Indexed: 01/06/2023]
Abstract
The detection and removal of volatile organic compounds (VOCs) are emerging as an important problem in modern society. In this study, we attempted to develop a new material capable of detecting or adsorbing VOCs by introducing a new functional group and immobilizing metal ions into a microfiber nonwoven fabric (MNWF) made through radiation-induced graft polymerization. The suitable metal complex was selected according to the data in “Cambridge Crystallographic Data Center (CCDC)”. 4-picolylamine (4-AMP), designated as a ligand through the metal complex data of CCDC, was introduced at an average mole conversion rate of 63%, and copper ions were immobilized at 0.51 mmol/g to the maximum. It was confirmed that degree of grafting (dg) 170% 4-AMP-Cu MNWF, where copper ions are immobilized, can adsorb up to 50% of acetone gas at about 50 ppm, 0.04 mmol/g- 4-AMP-Cu-MNWF, at room temperature and at a ratio of copper ion to adsorbed acetone of 1:10.
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Zhang J, Lei C, Liang T, Liu R, Zhao Z, Qi L, Ghaffar A, Xiong J. Acetone Sensor Based on FAIMS-MEMS. Micromachines (Basel) 2021; 12:1531. [PMID: 34945383 PMCID: PMC8703384 DOI: 10.3390/mi12121531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/02/2021] [Accepted: 12/05/2021] [Indexed: 12/02/2022]
Abstract
In this paper, to address the problems of large blood draws, long testing times, and the inability to achieve dynamic detection of invasive testing for diabetes, stemming from the principle that type 1 diabetic patients exhale significantly higher levels of acetone than normal people, a FAIMS-MEMS gas sensor was designed to detect acetone, which utilizes the characteristics of high sensitivity, fast response, and non-invasive operation. It is prepared by MEMS processes, such as photolithography, etching, and sputtering, its specific dimensions are 4000 μm in length, 3000 μm in width and 800 μm in height and the related test system was built to detect acetone gas. The test results show that when acetone below 0.8 ppm is introduced, the voltage value detected by the sensor basically does not change, while when acetone gas exceeds 1.8 ppm, the voltage value detected by the sensor increases significantly. The detection accuracy of the sensor prepared by this method is about 0.02 ppm/mV, and the voltage change can reach 1 V with a response time of 3 s and a recovery time of 4 s when tested under 20 ppm acetone environment; this has good repeatability and stability, and has great prospects in the field of non-invasive detection of type 1 diabetes.
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Affiliation(s)
- Junna Zhang
- State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China; (J.Z.); (Z.Z.); (J.X.)
| | - Cheng Lei
- State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China; (J.Z.); (Z.Z.); (J.X.)
| | - Ting Liang
- State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China; (J.Z.); (Z.Z.); (J.X.)
| | - Ruifang Liu
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China;
| | - Zhujie Zhao
- State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China; (J.Z.); (Z.Z.); (J.X.)
| | - Lei Qi
- North Automatic Control Technology Institute, Taiyuan 030006, China;
| | - Abdul Ghaffar
- State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China;
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jijun Xiong
- State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China; (J.Z.); (Z.Z.); (J.X.)
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Szlapinski S, Strutt B, Deane M, Arany E, Bennett J, Hill DJ. Acetone Ingestion Mimics a Fasting State to Improve Glucose Tolerance in a Mouse Model of Gestational Hyperglycemia. Int J Mol Sci 2021; 22:12914. [PMID: 34884717 DOI: 10.3390/ijms222312914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/23/2021] [Accepted: 11/27/2021] [Indexed: 11/16/2022] Open
Abstract
Gestational diabetes mellitus results, in part, from a sub-optimal β-cell mass (BCM) during pregnancy. Artemisinins were reported to increase BCM in models of diabetes by α- to β-cell conversion leading to enhanced glucose tolerance. We used a mouse model of gestational glucose intolerance to compare the effects of an artemisinin (artesunate) on glycemia of pregnant mice with vehicle treatment (acetone) or no treatment. Animals were treated daily from gestational days (GD) 0.5 to 6.5. An intraperitoneal glucose tolerance test was performed prior to euthanasia at GD18.5 or post-partum. Glucose tolerance was significantly improved in both pregnant and non-pregnant mice with both artesunate and vehicle-alone treatment, suggesting the outcome was primarily due to the acetone vehicle. In non-pregnant, acetone-treated animals, improved glucose tolerance was associated with a higher BCM and a significant increase in bihormonal insulin and glucagon-containing pancreatic islet cells, suggesting α- to β-cell conversion. BCM did not differ with treatment during pregnancy or post-partum. However, placental weight was higher in acetone-treated animals and was associated with an upregulation of apelinergic genes. Acetone-treated animals had reduced weight gain during treatment despite comparable food consumption to non-treated mice, suggesting transient effects on nutrient uptake. The mean duodenal and ileum villus height was reduced following exposure to acetone. We conclude that acetone treatment may mimic transient fasting, resulting in a subsequent improvement in glucose tolerance during pregnancy.
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Gouzi F, Ayache D, Hédon C, Molinari N, Vicet A. Breath acetone concentration: too heterogeneous to constitute a diagnosis or prognosis biomarker in heart failure? A systematic review and meta-analysis. J Breath Res 2021; 16. [PMID: 34727537 DOI: 10.1088/1752-7163/ac356d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 11/02/2021] [Indexed: 12/19/2022]
Abstract
Introduction. Exhaled breath acetone (ExA) has been investigated as a biomarker for heart failure (HF). Yet, barriers to its use in the clinical field have not been identified. The aim of this systematic review and meta-analysis was to assess the ExA heterogeneity and factors of variability in healthy controls (HC), to identify its relations with HF diagnosis and prognostic factors and to assess its diagnosis and prognosis accuracy in HF patients.Methods. A systematic search was conducted in PUBMED and Web of Science database. All studies with HC and HF patients with a measured ExA were included and studies providing ExA's diagnosis and prognosis accuracy were identified.Results. Out of 971 identified studies, 18 studies involving 833 HC and 1009 HF patients were included in the meta-analysis. In HC, ExA showed an important heterogeneity (I2= 99%). Variability factors were fasting state, sampling type and analytical method. The mean ExA was 1.89 times higher in HF patients vs. HC (782 [531-1032] vs. 413 [347-478] ppbv;p< 0.001). One study showed excellent diagnosis accuracy, and one showed a good prognosis value. ExA correlated with New York Heart Association (NYHA) dyspnea (p< 0.001) and plasma brain natriuretic peptide (p< 0.001). Studies showed a poor definition and reporting of included subjects.Discussion. Despite the between-study heterogeneity in HC, the evidence of an excellent diagnosis and prognosis value of ExA in HF from single studies can be extended to clinical populations worldwide. Factors of variability (ExA procedure and breath sampling) could further improve the diagnosis and prognosis values of this biomarker in HF patients.
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Affiliation(s)
- Fares Gouzi
- PhyMedExp, University of Montpellier, INSERM, CNRS, CHRU, Montpellier, France
| | - Diba Ayache
- IES, Montpellier University, CNRS, F-34000 Montpellier, France
| | - Christophe Hédon
- PhyMedExp, University of Montpellier, INSERM, CNRS, CHRU, Montpellier, France
| | - Nicolas Molinari
- IDESP, INSERM, Montpellier University, Montpellier University Hospital, Montpellier, France
| | - Aurore Vicet
- IES, Montpellier University, CNRS, F-34000 Montpellier, France
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Umeh C, Gupta RC, Gupta R, Kaur H, Kazourra S, Maguwudze S, Torbela A, Saigal S. Acetone Ingestion Resulting in Cardiac Arrest and Death. Cureus 2021; 13:e18466. [PMID: 34754632 PMCID: PMC8564060 DOI: 10.7759/cureus.18466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2021] [Indexed: 11/22/2022] Open
Abstract
Acetone is a chemical found naturally in the environment, and acetone poisoning can occur through contact with household products that contain acetone, including nail polish removers, paint removers, some polishes, as well as certain detergents and cleaners. Acetone toxicity affects almost all body systems, including the nervous, respiratory, cardiovascular, and endocrine systems. The incidence of life-threatening medical problems from acetone exposure is very rare. However, in this report, we present a case of acetone toxicity resulting in death. Our patient presented with cardiopulmonary arrest, hypotension, tachycardia, hyperglycemia, acute kidney injury (AKI), thrombocytopenia, elevated liver enzymes, and extensive esophageal and gastric erosion with associated upper gastrointestinal bleeding.
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Affiliation(s)
| | - Rakesh C Gupta
- Pulmonary and Critical Care Medicine, Hemet Global Medical Center, Hemet, USA
| | - Rahul Gupta
- Internal Medicine, Hemet Global Medical Center, Hemet, USA
| | - Harpreet Kaur
- Internal Medicine, Hemet Global Medical Center, Hemet, USA
| | - Shadi Kazourra
- Internal Medicine, Hemet Global Medical Center, Hemet, USA
| | | | - Adrian Torbela
- Internal Medicine, Hemet Global Medical Center, Hemet, USA
| | - Shipra Saigal
- Internal Medicine, Hemet Global Medical Center, Hemet, USA
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Almusa A, Delgado AHS, Ashley P, Young AM. Determination of Dental Adhesive Composition throughout Solvent Drying and Polymerization Using ATR-FTIR Spectroscopy. Polymers (Basel) 2021; 13:polym13223886. [PMID: 34833185 PMCID: PMC8623623 DOI: 10.3390/polym13223886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/02/2021] [Accepted: 11/04/2021] [Indexed: 11/16/2022] Open
Abstract
The of this study aim was to develop a rapid method to determine the chemical composition, solvent evaporation rates, and polymerization kinetics of dental adhesives. Single-component, acetone-containing adhesives One-Step (OS; Bisco, Anaheim, CA, USA), Optibond Universal (OU; Kerr, Brea, CA, USA), and G-Bond (GB; GC, Tokyo, Japan) were studied. Filler levels were determined gravimetrically. Monomers and solvents were quantified by comparing their pure Attenuated Total Reflectance-Fourier Transform Infra-Red (ATR-FTIR) spectra, summed in different ratios, with those of the adhesives. Spectral changes at 37 °C, throughout passive evaporation for 5 min, then polymerisation initiated by 20 s, and blue light emitting diode (LED) (600 mW/cm2) exposure (n = 3) were determined. Evaporation and polymerisation extent versus time and final changes were calculated using acetone (1360 cm-1) and methacrylate (1320 cm-1) peaks. OS, OU, and GB filler contents were 0, 9.6, and 5.3%. FTIR suggested OS and OU were Bis-GMA based, GB was urethane dimethacrylate (UDMA) based, and that each had a different diluent and acidic monomers and possible UDMA/acetone interactions. Furthermore, initial acetone percentages were all 40-50%. After 5 min drying, they were 0% for OS and OU but 10% for GB. Whilst OS had no water, that in OU declined from 18 to 10% and in GB from 25 to 20% upon drying. Evaporation extents were 50% of final levels at 23, 25, and 113 s for OS, OU, and GB, respectively. Polymerisation extents were all 50 and 80% of final levels before 10 and at 20 s of light exposure, respectively. Final monomer polymerisation levels were 68, 69, and 88% for OS, OU, and GB, respectively. An appreciation of initial and final adhesive chemistry is important for understanding the properties. The rates of evaporation and polymerisation provide indications of relative required drying and light cure times. UDMA/acetone interactions might explain the considerably greater drying time of GB.
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Affiliation(s)
- Arwa Almusa
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London WC1X 8DA, UK; (A.H.S.D.); (P.A.); (A.M.Y.)
- Correspondence:
| | - António H. S. Delgado
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London WC1X 8DA, UK; (A.H.S.D.); (P.A.); (A.M.Y.)
- Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Monte de Caparica, 2829-511 Almada, Portugal
| | - Paul Ashley
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London WC1X 8DA, UK; (A.H.S.D.); (P.A.); (A.M.Y.)
- Unit of Pediatric Dentistry, Department of Craniofacial Growth and Development, UCL Eastman Dental Institute, London WC1X 8DA, UK
| | - Anne M. Young
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London WC1X 8DA, UK; (A.H.S.D.); (P.A.); (A.M.Y.)
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Baghalabadi V, Razmi H, Doucette A. Salt-Mediated Organic Solvent Precipitation for Enhanced Recovery of Peptides Generated by Pepsin Digestion. Proteomes 2021; 9:44. [PMID: 34842819 DOI: 10.3390/proteomes9040044] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/28/2021] [Accepted: 10/31/2021] [Indexed: 11/22/2022] Open
Abstract
Conventional solvent-based precipitation makes it challenging to obtain a high recovery of low mass peptides. However, we previously demonstrated that the inclusion of salt ions, specifically ZnSO4, together with high concentrations of acetone, maximizes the recovery of peptides generated from trypsin digestion. We herein generalized this protocol to the rapid (5 min) precipitation of pepsin-digested peptides recovered from acidic matrices. The precipitation protocol extended to other organic solvents (acetonitrile), with high recovery from dilute peptide samples permitting preconcentration and purification. Mass spectrometry profiling of pepsin-generated peptides demonstrated that the protocol captured peptides as small as 800 u, although with a preferential bias towards recovering larger and more hydrophobic peptides. The precipitation protocol was applied to rapidly quench, concentrate, and purify pepsin-digested samples ahead of MS. Complex mixtures of yeast and plasma proteome extracts were successfully precipitated following digestion, with over 95% of MS-identified peptides observed in the pellet fraction. The full precipitation workflow—including the digestion step—can be completed in under 10 min, with direct MS analysis of the recovered peptide pellets showing exceptional protein sequence coverage.
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Zhang X, Yan B, Li W. Theoretical investigation on the addition reaction of the germylenoid H 2GeLiCl with acetone. Turk J Chem 2021; 45:1125-1132. [PMID: 34707438 PMCID: PMC8520399 DOI: 10.3906/kim-2012-35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 04/27/2021] [Indexed: 11/30/2022] Open
Abstract
In this work, theoretical calculations were performed on the addition reaction of the germylenoid H2GeLiCl with acetone. The DFT M06-2X method was used to optimize the geometries of the whole stationary points on the potential energy surfaces and the QCISD method to calculate the single-point energy. The results reveal that the addition reaction of H2GeLiCl with acetone firstly generates an oxagermacyclopropane c-H2GeOC(CH3)2 and then c-H2GeOC(CH3)2 further reacts with acetone along two possible pathways, pathway I and pathway II, in which the 2,4-dioxagermolane is formed at the end of pathway I and 2,5-dioxagermolane is formed at the end of pathway II, respectively. According to the calculated barrier heights, we can deduce that the pathway I is more favorable than pathway II. The computational results suggest that this reaction model can provide new inspiration for the synthesis of heterocyclic germanium compounds.
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Affiliation(s)
- Xiaolin Zhang
- School of Chemistry and Chemical Engineering, Yantai University, Yantai China
| | - Bingfei Yan
- School of Chemistry and Chemical Engineering, Yantai University, Yantai China
| | - Wenzuo Li
- School of Chemistry and Chemical Engineering, Yantai University, Yantai China
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