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1. Heterogeneous uptake of NO2 by sodium acetate droplets and secondary nitrite aerosol formation

Author:
Wen-Xiu Pei; Shuai-Shuai Ma; Zhe Chen; Yue Zhu; Shu-Feng Pang; Yun-Hong Zhang
Source:
Journal of environmental sciences (China) 2023 v.127 pp. 320-327
ISSN:
1001-0742
Subject:
acetates,   etc   ; Fourier transform infrared spectroscopy; aerosols; hydrolysis; nitrites; nitrogen; relative humidity; sodium acetate; volatilization; China;     Show all 10 Subjects
Abstract:
... The high NO₃⁻ concentration in fine particulate matters (PM₂.₅) during heavy haze events has attracted much attention, but the formation mechanism of nitrates remains largely uncertain, especially concerning heterogeneous uptake of NOX by aqueous phase. In this work, the heterogeneous uptake of NO₂ by sodium acetate (NaAc) droplets with different NO₂ concentrations and relative humidity (RH) condi ...
DOI:
10.1016/j.jes.2022.05.048

2. Synergistic effect of hydrogen and nanoscale zero-valent iron on ex-situ biogas upgrading and acetate recovery

Author:
Kai-Kai Wu; Lei Zhao; Zhong-Fang Sun; Zi-Han Wang; Chuan Chen; Hong-Yu Ren; Shan-Shan Yang; Nan-Qi Ren
Source:
Science of the total environment 2023 v.856 pp. 159100
ISSN:
0048-9697
Subject:
acetates,   etc   ; Acidaminococcus; Clostridium; anaerobic digestion; biogas; biotransformation; carbon dioxide; energy; environment; gas production (biological); hydrogen; iron; liquids; markets; microbial activity; microbial communities; microbiome; polymers; synergism;     Show all 19 Subjects
Abstract:
... Hydrogen (H₂) assisted ex-situ biogas upgrading and liquid chemicals production can augment the fossil fuel-dominated energy market, and alleviate CO₂-induced global warming. Recent investigations confirmed that nanoscale zero-valent iron (nZVI) enabled the enhancement of anaerobic digestion for biogas production. However, little is known about the effect of nZVI on the downstream ex-situ biogas u ...
DOI:
10.1016/j.scitotenv.2022.159100

3. Genome-resolved metagenomic analysis reveals different functional potentials of multiple Candidatus Brocadia species in a full-scale swine wastewater treatment system

Author:
Yabing Meng; Depeng Wang; Zhong Yu; Qingyun Yan; Zhili He; Fangang Meng
Source:
Frontiers of environmental science & engineering 2023 v.17 no.1 pp. 2
ISSN:
2095-2201
Subject:
acetates,   etc   ; acetate kinase; ammonia; ammonium; anaerobic ammonium oxidation; carbon; cyanase; dominant species; ecological differentiation; hydroxylamine; metagenomics; nitrite reductase; nitrites; organic nitrogen; phylogeny; sequence analysis; swine; urease; wastewater treatment;     Show all 19 Subjects
Abstract:
... The increasing application of anammox processes suggests their enormous potential for nitrogen removal in wastewater treatment facilities. However, the functional potentials and ecological differentiation of cooccurring anammox species in complex ecosystems have not been well elucidated. Herein, by utilizing functional reconstruction and comparative genome analysis, we deciphered the cooccurring m ...
DOI:
10.1007/s11783-023-1602-7

4. Diverse 3-Methylthio-4-Substituted Maleimides through a Novel Rearrangement Reaction: Synthesis and Selective Cell Imaging

Author:
Luan V. Meirelles; Pedro P. de Castro; Saulo T. A. Passos; Bernardo B. P. P. Carvalho; Chris H. J. Franco; José R. Correa; Brenno A. D. Neto; Giovanni W. Amarante
Source:
Journal of organic chemistry 2022 v.87 no.5 pp. 2809-2820
ISSN:
1520-6904
Subject:
acetates,   etc   ; fluorescence; organic chemistry;     Show all 3 Subjects
Abstract:
... A transition metal-free protocol for the preparation of fluorescent and non-fluoresent 3-methylthio-4-arylmaleimides in a single step through a new rearrangement from thiazolidine-2,4-diones is described. By employing the optimized reaction conditions, a broad scope of derivatives was prepared in ≤97% yield. The reaction tolerated several substituted aryl groups, including the challenging preparat ...
DOI:
10.1021/acs.joc.1c02714

5. Real-time monitoring of biofilm thickness allows for determination of acetate limitations in bio-anodes

Author:
João Pereira; Siqi Pang; Casper Borsje; Tom Sleutels; Bert Hamelers; Annemiek ter Heijne
Source:
Bioresource technology reports 2022 v.18 pp. 101028
ISSN:
2589-014X
Subject:
acetates,   etc   ; bioanodes; biofilm; technology;     Show all 4 Subjects
Abstract:
... Several studies have reported that current produced by electro-active bacteria (EAB) is dependent on anode potential and substrate concentration. However, information about the relation between biofilm growth and current density is scarce. In this study, biofilm thickness was monitored in-situ and this relation explored at three anode potentials and three acetate concentrations. The highest curren ...
DOI:
10.1016/j.biteb.2022.101028

6. Access to Highly Strained Tricyclic Ketals Derived from Coumarins

Author:
Sravan K. Jonnalagadda; Bader I. Huwaimel; Shirisha Jonnalagadda; Jered C. Garrison; Paul C. Trippier
Source:
Journal of organic chemistry 2022 v.87 no.6 pp. 4476-4482
ISSN:
1520-6904
Subject:
acetates,   etc   ; coumarin; lactones; organic chemistry;     Show all 4 Subjects
Abstract:
... Synthesis of highly strained fused substituted dihydrobenzopyran cyclopropyl lactones derived from coumarin carboxylates are reported. The substrate scope tolerates a variety of 6- and 8-substituents on the coumarin ring. Substitution at the 5- or 7-position is resistant to tricyclic lactone formation except with 7-methyl substitution. Benzamide-containing coumarins afford the tricyclic ketal. A p ...
DOI:
10.1021/acs.joc.2c00018

7. Dually Modified Wide-Bandgap Perovskites by Phenylethylammonium Acetate toward Highly Efficient Solar Cells with Low Photovoltage Loss

Author:
Jiabang Chen; Deng Wang; Shi Chen; Hang Hu; Yang Li; Yulan Huang; Zhuoqiong Zhang; Zhengyan Jiang; Jiamin Xu; Xiyu Sun; Shu Kong So; Yuanjun Peng; Xingzhu Wang; Xunjin Zhu; Baomin Xu
Source:
ACS applied materials & interfaces 2022 v.14 no.38 pp. 43246-43256
ISSN:
1944-8252
Subject:
acetates,   etc   ; electric potential difference; lighting;     Show all 3 Subjects
Abstract:
... Wide-bandgap perovskites as a class of promising top-cell materials have shown great promise in constructing efficient perovskite-based tandem solar cells, but their intrinsic relatively low radiative efficiency results in a large open-circuit voltage (VOC) deficit and thereby limits the whole device performance. Reducing film flaws or optimizing interfacial energy level alignments in wide-bandgap ...
DOI:
10.1021/acsami.2c10928

8. Effects of spontaneous fermentation on microbial succession and its correlation with volatile compounds during fermentation of Petit Verdot wine

Author:
Hu Chen; Yaqiong Liu; Jiawei Chen; Xiaofang Fu; Ran Suo; Bimal Chitrakar; Jie Wang
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.168 pp. 113890
ISSN:
0023-6438
Subject:
acetates,   etc   ; fermentation; flavor; odors; wines;     Show all 5 Subjects
Abstract:
... Petit Verdot is widely used in blend wines but only few studies focus on the effect of microorganisms on the aroma formation of its monovarietal wine. This study explored the correlation between microorganisms and aromas during spontaneous fermentation (SF) and inoculated fermentation (IF). The changes of volatile compounds and microbial succession during the wine fermentation were monitored by HS ...
DOI:
10.1016/j.lwt.2022.113890

9. Elemental sulfur generated in situ from Fe(III) and sulfide promotes sulfidation of microscale zero-valent iron for superior Cr(VI) removal

Author:
Yinshun Dai; Liangfeng Duan; Yamin Dong; Wenjie Zhao; Shan Zhao
Source:
Journal of hazardous materials 2022 v.436 pp. 129256
ISSN:
0304-3894
Subject:
acetates,   etc   ; chemical composition; iron; sulfur;     Show all 4 Subjects
Abstract:
... Herein, we compared the effect of different extra iron and sulfur precursors on the sulfidation efficiency, physicochemical properties, and reactivity of post-sulfidated microscale zero-valent iron (S-ZVI). S⁰@ZVI was synthesized from in situ S⁰ generated via reaction of Fe(III) with S²⁻, which resulted in 23-fold higher Cr(VI) removal compared with S⁰cₒₘ/ZVI synthesized using commercial S⁰. The d ...
DOI:
10.1016/j.jhazmat.2022.129256

10. Designing Ionic Liquids as the Solvent for Efficient and Stable Perovskite Solar Cells

Author:
Lei Gu; Chenxin Ran; Lingfeng Chao; Yaqi Bao; Wei Hui; Yue Wang; Yonghua Chen; Xingyu Gao; Lin Song
Source:
ACS applied materials & interfaces 2022 v.14 no.20 pp. 22870-22878
ISSN:
1944-8252
Subject:
acetates,   etc   ; crystallization; formates; industrialization; propionic acid;     Show all 5 Subjects
Abstract:
... As a green solvent, ionic liquids (ILs) are considered as a promising alternative to conventional polar aprotic solvents for the production of efficient and stable perovskite solar cells (PSCs). Moreover, with the use of IL solvents, perovskite films can be prepared without antisolvent treatments in an ambient environment instead of in a glovebox with inert gases, which simplifies the film manufac ...
DOI:
10.1021/acsami.1c21035

11. Enantioseparation of 4C-Substituted Pyrrolidin-2-One Derivatives on Polysaccharide and Macrocyclic Glycopeptide Chiral Stationary Phases

Author:
Helena Kažoka; Baiba Turovska; Toms Upmanis; Grigory Veinberg
Source:
Chromatographia 2022 v.85 no.5 pp. 489-495
ISSN:
0009-5893
Subject:
acetates,   etc   ; amylose; cellulose; enantiomers; glycopeptides; vancomycin;     Show all 6 Subjects
Abstract:
... To extend our previous studies concerning the enantioseparation of 4C-substituted pyrrolidin-2-one derivatives on polysaccharide-based chiral stationary phases with ethanol/n-hexane mobile phases, two commercially available immobilized chiral stationary phases [amylose derivatized with (S)-α-methylbenzylcarbamate, and cellulose derivatized with 3,5-dichlorophenylcarbamate] were studied. Also, effo ...
DOI:
10.1007/s10337-022-04145-z

12. Ligand- and Counterion-Assisted Phenol O-Arylation with TMP-Iodonium(III) Acetates

Author:
Kotaro Kikushima; Naoki Miyamoto; Kazuma Watanabe; Daichi Koseki; Yasuyuki Kita; Toshifumi Dohi
Source:
Organic letters 2022 v.24 no.10 pp. 1924-1928
ISSN:
1523-7052
Subject:
acetates,   etc   ; Lewis acids; ligands; oxygen; phenol;     Show all 5 Subjects
Abstract:
... High reactivity of trimethoxyphenyl (TMP)-iodonium(III) acetate for phenol O-arylation was achieved. It was first determined that the TMP ligand and acetate anion cooperatively enhance the electrophilic reactivity toward phenol oxygen atoms. The proposed method provides access to various diaryl ethers in significantly higher yields than the previously reported techniques. Various functional groups ...
DOI:
10.1021/acs.orglett.2c00294

13. PVC/EVA-based polymer inclusion membranes with improved stability and Cr(VI) extraction capacity: Water plasticization effect

Author:
Ferhat Sellami; Ounissa Kebiche-Senhadji; Stéphane Marais; Kateryna Fatyeyeva
Source:
Journal of hazardous materials 2022 v.436 pp. 129069
ISSN:
0304-3894
Subject:
acetates,   etc   ; liquids; permeability; plasticizers; vinyl acetate;     Show all 5 Subjects
Abstract:
... Polymer inclusion membranes (PIMs) are far investigated for their ability to extract heavy metals and small organic compounds from aqueous media. Polyvinyl chloride (PVC) is one of the most widely used base polymers for the PIM elaboration. However, its use requires the incorporation of a relatively expensive liquid plasticizer. In the present work, poly(ethylene-co-vinyl acetate) (EVA) serves as ...
DOI:
10.1016/j.jhazmat.2022.129069

14. Insights at the molecular level into the formation of oxo-bridged trinuclear uranyl complexes

Author:
Gerrit Schaper; Marco Wenzel; Uwe Schwarzenbolz; Johannes Steup; Felix Hennersdorf; Thomas Henle; Leonard F. Lindoy; Jan J. Weigand
Source:
Chemical communications 2022 v.58 no.11 pp. 1748-1751
ISSN:
1364-548X
Subject:
acetates,   etc   ; deprotonation; ethanol; glucosamine; uranyl ions;     Show all 5 Subjects
Abstract:
... Reaction of 1,3,4,6-tetra-O-acetyl-N-(2-hydroxy)-naphthylidene glucosamine (HL(Ac)) with uranyl acetate in ethanol leads to formation of dinuclear [(UO₂)₂(L)₂] (1). In a second step 1 is quantitatively transferred into the trinuclear oxo-bridged complex [(UO₂)₃(μ₃–O)(L)₃]²⁻ (2²⁻) via deprotonation and coordination of a water molecule. This transformation was followed by NMR and UV/Vis spectroscopy ...
DOI:
10.1039/d1cc06310c

15. Twofold and Threefold Sinusoidal Patterns in Coupled Molecular Motions of 184,025 Structures of Phenylethane, Nitroethane, and Carboxylate Derivatives

Author:
Henri Brunner; Masahiro Ikeshita; Takashi Tsuno
Source:
Journal of organic chemistry 2022 v.87 no.12 pp. 7798-7805
ISSN:
1520-6904
Subject:
acetates,   etc   ; databases; exhibitions; journals; organic chemistry;     Show all 5 Subjects
Abstract:
... Scatter plot analyses for 14,169 phenylethanes of the substructure Cᵦ-CαH₂-Ph with three open coordination positions at Cᵦ and 150,568 phenylethanes of Cᵦ-CαHX-Ph with an additional open coordination position X at Cα have been performed, based on searches in the Cambridge Structural Database. The correlation of rotation angle ψ = Cᵦ–Cα–Cᵢ–Cₒ with a pyramidalization angle θ = Cₒ–Cₒ′–Cᵢ–Cα in a 360° ...
DOI:
10.1021/acs.joc.2c00443

16. Morphology and structure of in situ FeS affect Cr(VI) removal by sulfidated microscale zero-valent iron with short-term ultrasonication

Author:
Yinshun Dai; Liangfeng Duan; Weiyu Du; Xiaowei Yang; Shiwen Sun; Qi Xiu; Shuguang Wang; Shan Zhao
Source:
Chemosphere 2022 v.290 pp. 133372
ISSN:
0045-6535
Subject:
acetates,   etc   ; iron; nanosheets; ultrasonic treatment; ultrasonics;     Show all 5 Subjects
Abstract:
... The properties of sulfidated zero-valent iron (S-ZVI) are considered to be determined by the entire structure of Fe⁰ and FeₓSy as a whole, but few studies focus on the influence of the morphology and structure of the external FeₓSy layer on the performance of S-ZVI. In this study, after the sulfidation of microscale ZVI in acetate (HAc-NaAc) and 2-(N-morpholino) ethanesulfonic acid (MES) buffer so ...
DOI:
10.1016/j.chemosphere.2021.133372

17. A new sesquiterpene from South African wild ginger (Siphonochilus aethiopicus (Schweinf) B.L. Burtt)

Author:
Naser F. Al-Tannak; John V. Anyam; Ngozichukwuka P. Igoli; Alexander I. Gray; Mansour A. Alzharani; John O. Igoli
Source:
Natural product research 2022 v.36 no.19 pp. 4943-4948
ISSN:
1478-6427
Subject:
acetates,   etc   ; gel chromatography; ginger; research; sesquiterpenoids;     Show all 5 Subjects
Abstract:
... A new eusdesmane sesquiterpenoid, characterised as 5-acetoxy-9aβ-hydroxy-4aαH-3,5α, 8aβ-trimethyl-4, 4a, 6, 7, 8a, 9-hexahydronaphtho-([2, 3 b]-dihydrofuran-2-one)-8-one or phaeusmane F acetate (1) has been isolated from the rhizomes of the South African variety of wild ginger (iphonochilus aethiopicus (Schweinf) B.L. Burtt). The compound was obtained after a series of column and gel filtration ch ...
DOI:
10.1080/14786419.2021.1914029

18. Pulsatilla decoction improves DSS-induced colitis via modulation of fecal-bacteria-related short-chain fatty acids and intestinal barrier integrity

Author:
Chun Niu; Xiao-li Hu; Zi-wen Yuan; Ying Xiao; Peng Ji; Yan-ming Wei; Yong-li Hua
Source:
Journal of ethnopharmacology 2023 v.300 pp. 115741
ISSN:
0378-8741
Subject:
acetates,   etc   ; Bacteroides; Clostridium; Escherichia; Lachnospiraceae; Pulsatilla; blood serum; body weight; dextran; enzyme-linked immunosorbent assay; gas chromatography-mass spectrometry; genes; homeostasis; interleukin-10; interleukin-17; intestinal microorganisms; intestines; males; mechanism of action; metabolism; models; occludins; propionic acid; short chain fatty acids; sodium sulfate; therapeutics; tight junctions; traditional medicine; tumor necrosis factor-alpha; ulcerative colitis;     Show all 30 Subjects
Abstract:
... Pulsatilla decoction (PD), is an herbal formula commonly used for the treatment of ulcerative colitis (UC) in clinical practice, but the mechanism of PD alters the colitis remains elusive. To evaluate the intervention effect of PD on Dextran Sodium Sulfate (DSS)-induced UC based on gut microbiota and intestinal short-chain fatty acid (SCFAs) metabolism, and to investigate the mechanism of action o ...
DOI:
10.1016/j.jep.2022.115741

19. Development and validation of RP-HPLC method for 1΄-Acetoxychavicol acetate (ACA) and its application in optimizing the yield of ACA during its isolation from Alpinia galanga extract as well as its quantification in nanoemulsion

Author:
Arya Kadukkattil Ramanunny; Sheetu Wadhwa; Monica Gulati; Saurabh Gupta; Omji Porwal; Niraj Kumar Jha; Piyush Kumar Gupta; Deepak Kumar; Parteek Prasher; Kamal Dua; Ahmed Al Saqr; Saud Almawash; Sachin Kumar Singh
Source:
South African journal of botany 2022 v.149 pp. 887-898
ISSN:
0254-6299
Subject:
acetates,   etc   ; Alpinia galanga; formic acid; nanoemulsions; solvents;     Show all 5 Subjects
Abstract:
... An isocratic RP-HPLC was developed and validated for isolation of 1΄-Acetoxychavicol acetate (ACA) from Alpinia galanga extract (AGE). Nucleodur C18 column was used as the stationary phase and mixture of acetonitrile/0.1% formic acid in water (60/40, v/v) were used as mobile phase. The elution was carried out with a flow rate of 1 mL/min. Further, the method was validated as per ICH Q2 [R1] guidel ...
DOI:
10.1016/j.sajb.2021.10.012

20. Synthesis of a Diacetonide-Protected, Mannose-Based Oxepine: Configurational Control of Anomeric Acetate Activation

Author:
Bryant Pero; Mark W. Peczuh
Source:
Journal of organic chemistry 2022 v.87 no.11 pp. 7474-7479
ISSN:
1520-6904
Subject:
acetates,   etc   ; enol ethers; mannose; moieties; organic chemistry;     Show all 5 Subjects
Abstract:
... Carbohydrate-based oxepines are seven-membered-ring oxacycles containing an enol ether moiety. These compounds have been used as intermediates in the preparation of septanose carbohydrates by functionalization through their double bond. Reported here is a new synthesis of a carbohydrate based oxepine that uses 2,3;4,6-di-O-acetonide mannose as a key starting material. The oxepine is an important p ...
DOI:
10.1021/acs.joc.2c00206