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Molecules, Vol. 28, Pages 6766: Oil-Soluble Exogenous Catalysts and Reservoir Minerals Synergistically Catalyze the Aquathermolysis of Heavy Oil
hao Gang Chen Oil is the “blood” and economic lifeblood of modern industry, but traditional light crude oil has been over-consumed, and it has been difficult to meet human demand for energy, so the exploitation of heavy oil is particularly important. In this paper, an oil-soluble catalyst was synthesized to catalyze the pyrolysis reaction of heavy oil in collaboration with reservoir minerals, so as to achieve efficient viscosity reduction of heavy oil and reduce production costs. The experimental results showed that Zn(II)O + K had the best synergistic viscosity reduction effect after the ...
Source: Molecules - September 22, 2023 Category: Chemistry Authors: Yongfei Li Shu Zhang Ying Wang Guobin Qi Tao Yu Xin Xin Bin Zhao Gang Chen Tags: Article Source Type: research

Molecules, Vol. 28, Pages 6710: Application of Semiconductor Metal Oxide in Chemiresistive Methane Gas Sensor: Recent Developments and Future Perspectives
chang Fan The application of semiconductor metal oxides in chemiresistive methane gas sensors has seen significant progress in recent years, driven by their promising sensitivity, miniaturization potential, and cost-effectiveness. This paper presents a comprehensive review of recent developments and future perspectives in this field. The main findings highlight the advancements in material science, sensor fabrication techniques, and integration methods that have led to enhanced methane-sensing capabilities. Notably, the incorporation of noble metal dopants, nanostructuring, and hybrid materials has significantly improv...
Source: Molecules - September 20, 2023 Category: Chemistry Authors: Li Fu Shixi You Guangjun Li Xingxing Li Zengchang Fan Tags: Review Source Type: research

Molecules, Vol. 28, Pages 6689: Effect of the Association of Fixed Oils from Abelmoschus esculentus (L.) Moench, Euterpe oleracea Martius, Bixa orellana Linn & eacute; and Chronic SM & reg; on Atherogenic Dyslipidemia in Wistar Rats
This study investigated the effects of treatments with oils from A. esculentus, E. oleracea, B. orellana, and Chronic SM® on Cocos nucifera L. saturated-fat-induced dyslipidemia. The chromatographic profile showed the majority presence of unsaturated fatty acids in the tested oils. The quantification of tocotrienols and geranylgeraniol in OFBO and CHR was obtained. Treatments with OFEO, OFAE, OFBO, and CHR were able to significantly reduce glycemia, as well as hypertriglyceridemia, total cholesterol, and LDL-cholesterol, besides increasing HDL-cholesterol. The treatments inhibited the formation of atheromatous ...
Source: Molecules - September 19, 2023 Category: Chemistry Authors: Priscila Faimann Sales Aline Lopes do Nascimento Fernanda Cavalcante Pinheiro Andressa Ketelem Meireles Alberto Abrah ão Victor Tavares de Lima Teixeira dos Santos Helison de Oliveira Carvalho Gisele Cust ódio de Souza Jos é Carlos Tavares Carvalho Tags: Article Source Type: research

Molecules, Vol. 28, Pages 6685: Relation between Conventional and Starch-Assisted ASP Injection and Impact of Crystallinity on Flood Formation
This study explores conventional ASP flooding using PT SPR Langgak’s special surfactants, simulating Langgak oilfield conditions in Sumatra, Indonesia. By comparing the outcomes of this flooding technique with that of starch-assisted ASP performed in another study, the benefits of adding starch nanoparticles to flooding are evident. Nano-starch ASP increased oil recovery by 18.37%, 10.76%, and 10.37% for the three configurations investigated in this study. Water flooding preceded ASP flooding, and flooding operations were carried out at 60 °C. This study employed sodium hydroxide (NaOH), sodium ca...
Source: Molecules - September 18, 2023 Category: Chemistry Authors: Hasanain A. Al-Jaber Agus Arsad Sulalit Bandyopadhyay Mohd Zaidi Jaafar Muhammad Tahir Mustafa Jawad Nuhma Abdulmunem R. Abdulmunem Mohammad Yasin Abdulfatah Hajar Alias Tags: Article Source Type: research

Molecules, Vol. 28, Pages 6677: Preventing Adipogenesis and Preserving Mitochondria and GLUT-4 Functions by Extracts and Isolated Compounds of Australian Acacia saligna
. Ung Acacia saligna’s secondary metabolites show promise in treating type 2 diabetes mellitus and its related conditions. We previously discovered that methanolic extracts, isolated flavonoids, and cyclitols effectively preserve mitochondria in 3T3-L1 adipocytes. In this current work, quantification of lipid droplet levels with Oil Red O assay showed a noticeable decrease in lipogenesis in 3T3-L1 cells. Methanolic leaf and bark extracts and isolated compounds, (−)-epicatechin 6 and myricitrin 8, reduced cellular lipid levels by 21.15% to 25.28%, respectively. mRNA levels of key regulators o...
Source: Molecules - September 18, 2023 Category: Chemistry Authors: Anjar P. Asmara Hui Chen Alison T. Ung Tags: Article Source Type: research

Molecules, Vol. 28, Pages 6675: Residual Change of Four Pesticides in the Processing of Pogostemon cablin and Associated Factors
ng Shuangcheng Ma Before use as medicines, most traditional Chinese medicine (TCM) plants are processed and decocted. During processing, there may be some changes in pesticide residues in TCM. In recent years, reports have studied the changes of pesticides during the processes of boiling, drying and peeling of TCM materials but have rarely involved special processing methods for TCM, such as ethanol extraction and volatile oil extraction. The changes of carbendazim, carbofuran, pyridaben and tebuconazole residues in common processing methods for P. cablin products were systemically assessed in this study. After each ...
Source: Molecules - September 18, 2023 Category: Chemistry Authors: Yuanxi Liu Zuntao Zheng Hongbin Liu Dongjun Hou Hailiang Li Yaolei Li Wenguang Jing Hongyu Jin Ying Wang Shuangcheng Ma Tags: Article Source Type: research

Molecules, Vol. 28, Pages 6669: Sustainable Recovery of Phenolic Compounds from Distilled Rosemary By-Product Using Green Extraction Methods: Optimization, Comparison, and Antioxidant Activity
hatzopoulou Rosemary solid distillation waste (SWR), a by-product of the essential oil industry, represents an important source of phenolic antioxidants. Green technologies such as ultrasound-assisted extraction (UAE), microwave-assisted extraction (MAE), and accelerated solvent extraction (ASE) of phenolic compounds from SWR were optimized as valorization routes to maximize yield, rosmarinic acid (RMA), carnosol (CARO) and carnosic acid (CARA) contents. Response surface methodology was used in this context, with ethanol concentration (X1), extraction temperature (X2), and time (X3) being the independent variables. A s...
Source: Molecules - September 17, 2023 Category: Chemistry Authors: Maria Irakli Adriana Skendi Elisavet Bouloumpasi Stamatia Christaki Costas G. Biliaderis Paschalina Chatzopoulou Tags: Article Source Type: research

Molecules, Vol. 28, Pages 6547: Antioxidant and Antibacterial Activity of Mexican Oregano Essential Oil, Extracted from Plants Occurring Naturally in Semiarid Areas and Cultivated in the Field and Greenhouse in Northern Mexico
The objective was to compare the antioxidant and antibacterial activity of Mexican oregano essential oil obtained from plants occurring naturally in semiarid areas (Wild1 and Wild2), and those cultivated in the field (CField) and greenhouse (CGreenhouse) in northern Mexico. The Mexican oregano essential oil extraction was performed using the hydrodistillation method, the antioxidant activity was determined using the ABTS method, and the antibacterial activity was assessed through bioassays under the microwell method at nine different concentrations. The aim was to determine the diameter of the inhibition zone and, conseque...
Source: Molecules - September 9, 2023 Category: Chemistry Authors: Ruben I. Marin-Tinoco Angie Tatiana Ortega-Ram írez Maricela Esteban-Mendez Oscar Silva-Marrufo Laura E. Barragan-Ledesma Luis M. Valenzuela-N úñez Edwin A. Brice ño-Contreras Maria A. Sari ñana-Navarrete Abelardo Camacho-Luis Cayetano Navarrete-Moli Tags: Article Source Type: research

Molecules, Vol. 28, Pages 6509: Fabrication of Superhydrophobic Porous Brass by Chemical Dealloying for Efficient Emulsion Separation
dong Chen By taking advantage of typical dealloying and subsequent aging methods, a novel homogeneous porous brass with a micro/nano hierarchical structure was prepared without any chemical modification. The treatment of commercial brass with hot concentrated HCl solution caused preferential etching of Zn from Cu62Zn38 alloy foil, leaving a microporous skeleton with an average tortuous channel size of 1.6 μm for liquid transfer. After storage in the atmosphere for 7 days, the wettability of the dealloyed brass changed from superhydrophilic to superhydrophobic with a contact angle > 156&deg...
Source: Molecules - September 8, 2023 Category: Chemistry Authors: Yanbiao Zhou Qingqing Ye Yongjun Han Guoxu He Changdong Chen Tags: Article Source Type: research

Molecules, Vol. 28, Pages 6495: Stimulation of Hemolysis and Eryptosis by & alpha;-Mangostin through Rac1 GTPase and Oxidative Injury in Human Red Blood Cells
Conclusions: α-MG possesses hemolytic and eryptotic activities mediated through Ca2+ signaling, Rac1 GTPase activity, and oxidative injury. Also, α-MG leads to accelerated cellular aging and specifically targets platelet and monocyte populations in a whole blood milieu.
Source: Molecules - September 7, 2023 Category: Chemistry Authors: Sumiah A. Alghareeb Jawaher Alsughayyir Mohammad A. Alfhili Tags: Article Source Type: research

Molecules, Vol. 28, Pages 6482: Morphoanatomical, Histochemical, and Essential Oil Composition of the Plectranthus ornatus Codd. (Lamiaceae)
In this study, leaves of P. ornatus were collected in two cities of the state of Pará, “Quatipuru” and “Barcarena”, and were used with the objective of analyzing, through morphoanatomical data and histochemical and phytochemical studies of essential oil, the samples present structural differences and differences in their chemical composition. Anatomical and histochemical analyses were performed by transverse, using longitudinal sections of 8 μm to 10 μm to perform epidermal dissociation, diaphonization, and tests to identify classe...
Source: Molecules - September 7, 2023 Category: Chemistry Authors: Luiz Renan Ramos da Silva Zelina Ata íde Correia Ely Simone Cajueiro Gurgel Ol ívia Ribeiro Sebasti ão Gomes Silva Oberdan Oliveira Ferreira Eloisa Helena de Aguiar Andrade Mozaniel Santana de Oliveira Tags: Article Source Type: research

Molecules, Vol. 28, Pages 6479: Encapsulation of Hemp (Cannabis sativa L.) Essential Oils into Nanoemulsions for Potential Therapeutic Applications: Assessment of Cytotoxicological Profiles
This study aimed to evaluate the toxicological effect of hemp EOs and NEs from cultivars Carmagnola CS and Uso 31 on three cell lines selected as models for topical and inhalant administration, by evaluating the cytotoxicity and the cytokine expression profiles. Results show that EOs and their NEs have comparable cytotoxicity, if considering the quantity of EO present in the NE. Moreover, cells treated with EOs and NEs showed, in most of the cases, lower levels of proinflammatory cytokines compared to Etoposide used as a positive control, and the basal level of inflammatory cytokines was not altered, suggesting a safety pr...
Source: Molecules - September 7, 2023 Category: Chemistry Authors: Cristina Aguzzi Diego Romano Perinelli Marco Cespi Laura Zeppa Eugenia Mazzara Filippo Maggi Riccardo Petrelli Giulia Bonacucina Massimo Nabissi Tags: Article Source Type: research

Molecules, Vol. 28, Pages 6457: Development of a Liquid Chromatography & ndash;Tandem Mass Spectrometry (LC & ndash;MS/MS) Method for Characterizing Linalool Oral Pharmacokinetics in Humans
Molecules, Vol. 28, Pages 6457: Development of a Liquid Chromatography–Tandem Mass Spectrometry (LC–MS/MS) Method for Characterizing Linalool Oral Pharmacokinetics in Humans Molecules doi: 10.3390/molecules28186457 Authors: Yan-Hong Wang Goutam Mondal Nicole Stevens Cécile Bascoul Russell J. Osguthorpe Ikhlas A. Khan Charles R. Yates Lavender (Lavandula angustifolia Miller or Lavandula officinalis Chaix) is an ethnopharmacological plant commonly known as English lavender. Linalool and linalyl acetate are putative phytoactives in lavender essential oil (LEO) derived from the flower h...
Source: Molecules - September 6, 2023 Category: Chemistry Authors: Yan-Hong Wang Goutam Mondal Nicole Stevens C écile Bascoul Russell J. Osguthorpe Ikhlas A. Khan Charles R. Yates Tags: Article Source Type: research

Molecules, Vol. 28, Pages 6444: Characterization of Olive Oil Volatile Compounds after Elution through Selected Bleaching Materials & mdash;Gas Chromatography & ndash;Mass Spectrometry Analysis
This study aims to identify the volatiles of oxidized olive oil after physical bleaching using selected immobilized adsorbents. Oxidized olive oil was eluted using open-column chromatography packed with silica gel, bentonite, resin, Arabic gum, and charcoal at a 1:5 eluent system (w/v, adsorbent: oxidized olive oil). The smoke point was determined. The collected distilled vapor was injected into GC-MS to identify the volatiles eluted after partial refining with each of these bleaching compounds. The results showed that volatile compounds were quantitatively and qualitatively affected by the type of adsorbents used for the ...
Source: Molecules - September 5, 2023 Category: Chemistry Authors: Maher Mahoud Al-Dabbas Rawan Al-Jaloudi Mai Adnan Abdullah Mahmoud Abughoush Tags: Article Source Type: research

Molecules, Vol. 28, Pages 6433: Development and Characterization of a Hydrogel Containing Curcumin-Loaded Nanoemulsion for Enhanced In Vitro Antibacteria and In Vivo Wound Healing
This study aimed to optimize a CUR-NE-based gel and evaluate its physicochemical and biological properties. A NE was prepared using the catastrophic phase inversion method and optimized using the Design Expert software. The CUR-NE gel was characterized in terms of visual appearance, pH, drug release, antibacterial and wound healing effects. The optimal formulation contained CUR, Capryol 90 (oil), Labrasol:Cremophor RH40 (1:1) (surfactants), propylene glycol (co-surfactant), and water. The NE had a droplet size of 22.87 nm and a polydispersity index of 0.348. The obtained CUR-NE gel had a soft, smooth texture and a pH of 5....
Source: Molecules - September 4, 2023 Category: Chemistry Authors: Le Nguyen Nguyen Dao Nguyen Dang Le Nguyen Nguyen Dang Doan Ho Tags: Article Source Type: research