Journal of oleo science最新文献

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Resonant Properties of Chemisorbed Soft Materials on a MHz-Oscillating Solid-liquid Interface. 化学吸附软材料在mhz振荡固液界面上的共振特性。
IF 1.8 4区 农林科学
Journal of oleo science Pub Date : 2026-01-01 DOI: 10.5650/jos.ess25157
Minoru Yoshimoto, Shigeru Kurosawa, Mutsuo Tanaka
{"title":"Resonant Properties of Chemisorbed Soft Materials on a MHz-Oscillating Solid-liquid Interface.","authors":"Minoru Yoshimoto, Shigeru Kurosawa, Mutsuo Tanaka","doi":"10.5650/jos.ess25157","DOIUrl":"https://doi.org/10.5650/jos.ess25157","url":null,"abstract":"<p><p>In terms of resonant lengths, the behavior of chemisorbed soft materials on a MHz-oscillating solid-liquid interface was investigated using a quartz crystal microbalance (QCM). As chemisorbed materials, we used self-assembled monolayers (SAMs) formed from three types of mercapto oligo(ethylene oxide) methyl ethers, each with a single molecular weight: HS(CH<sub>2</sub>CH<sub>2</sub>O)<sub>5</sub>CH<sub>3</sub>, HS(CH<sub>2</sub>CH<sub>2</sub>O)<sub>27</sub>CH<sub>3</sub>, and HS(CH<sub>2</sub>CH<sub>2</sub>O)<sub>43</sub>CH<sub>3</sub>. Systematic variation in the concentrations of sucrose solutions resulted in corresponding changes in their viscosity and density. In addition, it is well known that the Kanazawa equation can qualitatively explain the relationship between the resonant frequency shift (ΔF) of the QCM and the solution's viscosity and density. Therefore, we investigated the relationship between the ΔF of the QCM, both without and with a SAM, and the concentrations of sucrose solutions. The attempt showed that, for the ratios of SAM thicknesses to resonant lengths below 50 %, the experimental results of ΔF quantitatively corresponded to the Kanazawa equation. The experimental results suggest that the equation describing the resonant length could appropriately evaluate the experimental data. Based on those results, the applicability of the QCMs with the SAMs of HS(CH<sub>2</sub>CH<sub>2</sub>O)<sub>5</sub>CH<sub>3</sub> and HS(CH<sub>2</sub>CH<sub>2</sub>O)<sub>27</sub>CH<sub>3</sub> to a bubble-free nonlinear chemical oscillator led to quantitative analysis.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 1","pages":"1-10"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145900732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of the Chemical Composition and Bioactivities of Essential Oil from Leaves of Myrsine linearis (Lour.). 肉苁蓉叶精油的化学成分及生物活性研究[j]。
IF 1.8 4区 农林科学
Journal of oleo science Pub Date : 2026-01-01 DOI: 10.5650/jos.ess25150
Ty Viet Pham, Thao Xuan Hoang, Dang Khoa Phan Nguyen, Thai Hoang Truong, Tuong Vy Le Thi, Gia-Buu Tran, Bich Hang Do
{"title":"Investigation of the Chemical Composition and Bioactivities of Essential Oil from Leaves of Myrsine linearis (Lour.).","authors":"Ty Viet Pham, Thao Xuan Hoang, Dang Khoa Phan Nguyen, Thai Hoang Truong, Tuong Vy Le Thi, Gia-Buu Tran, Bich Hang Do","doi":"10.5650/jos.ess25150","DOIUrl":"https://doi.org/10.5650/jos.ess25150","url":null,"abstract":"<p><p>Myrsine linearis (Lour.) is a medicinal plant in Vietnam that was used to treat various diseases. However, the phytochemical and biological activities of this plant have not been extensively investigated. Therefore, this study extracted the essential oil from Myrsine linearis leaves (MLEO), followed by the identification of phytochemical components and the evaluation of anti-inflammatory and anticancer activities in vitro and in silico. The results showed that major constituents in MLEO were β-caryophyllene (11.3 %), α-humulene (10.3 %), caryophyllene oxide (4.6 %), and spathulenol (4.3 %). MLEO inhibited the protein denaturation (IC<sub>50</sub> =34.01±5.64 µg/mL) and inhibited nitric oxide release in LPS-induced macrophage with the value of 33.19±1.78 %. The main compounds in MLEO bound to cyclooxygenase-2 and nitric oxide synthase, with binding energy values ranging from -6.1 to -7.5 kcal/mol, similar to those of positive controls. Additionally, MLEO demonstrated cytotoxicity against different cancer cells, with IC<sub>50</sub> values ranging from 20.26±1.1 µg/mL to 21.11±1.41 µg/mL. Therefore, MLEO is a promising candidate for supporting the treatment of diseases relating to inflammation and cancer.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 4","pages":"477-490"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147592758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Friction Dynamics of Organogel-type Cosmetics. 有机凝胶型化妆品的摩擦动力学。
IF 1.8 4区 农林科学
Journal of oleo science Pub Date : 2026-01-01 DOI: 10.5650/jos.ess25252
Rinka Sasaki, Yoshimune Nonomura
{"title":"Friction Dynamics of Organogel-type Cosmetics.","authors":"Rinka Sasaki, Yoshimune Nonomura","doi":"10.5650/jos.ess25252","DOIUrl":"https://doi.org/10.5650/jos.ess25252","url":null,"abstract":"<p><p>The friction characteristics of organogel-type cosmetics play a crucial role in texture improvement. In this study, we evaluated the friction behavior of 32 organogel-type cosmetics when they were applied to artificial skin utilizing a sinusoidal motion friction evaluation system. The principal component analysis on the friction parameters demonstrated that the principal components Z<sub>1</sub> and Z<sub>2</sub> incorporated the static friction coefficient μ<sub>s</sub>, dynamic friction coefficient μ<sub>k</sub>, delay time δ, and viscosity coefficient C. The cluster analysis on Z<sub>1</sub> and Z<sub>2</sub> classified these cosmetics into four different categories based on friction dynamics: Group 1 comprised 14 formulations containing hydrogenated polyisobutene (a low-polarity oil) and triethylhexanoin (a medium-polarity oil); Group 2 comprises cosmetics with high pigment content, hardness and friction coefficient; Group 3 comprises cosmetics with high viscosity response. and positive velocity dependence due to the presence of various paste-type oils; and Group 4, in which the friction coefficient decreases with the increasing acceleration at the onset of sliding, demonstrates a negative viscosity coefficient. These cosmetics contain medium- to high-polarity oils exemplified by diisostearyl malate and tri(caprylic/capric)glyceryl. The classification method based on friction parameters proposed in this study is useful for understanding the application texture of organogel-type cosmetics and designing improved formulations.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 5","pages":"641-652"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147839175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nigella sativa Seed Oil Antibacterial and Antibiofilm Activity against Escherichia coli O157H7 Shiga Toxin-2. 黑油对大肠杆菌O157H7志贺毒素-2的抑菌活性及抗菌膜活性研究
IF 1.8 4区 农林科学
Journal of oleo science Pub Date : 2026-01-01 DOI: 10.5650/jos.ess25166
Likaa H Mahdi, Raghad A Abdulrazaq, Haifa N Mater, Ghassan M Sulaiman, Ekhlas K Hasan, Hamdoon A Mohammed, Riaz A Khan, Ibtesam G Auda, Nihad T M Jaddoa, Luma A Zwain, Baydaa Hussein, Bushra M Kadhim, Mosleh M Abomughaid
{"title":"Nigella sativa Seed Oil Antibacterial and Antibiofilm Activity against Escherichia coli O157H7 Shiga Toxin-2.","authors":"Likaa H Mahdi, Raghad A Abdulrazaq, Haifa N Mater, Ghassan M Sulaiman, Ekhlas K Hasan, Hamdoon A Mohammed, Riaz A Khan, Ibtesam G Auda, Nihad T M Jaddoa, Luma A Zwain, Baydaa Hussein, Bushra M Kadhim, Mosleh M Abomughaid","doi":"10.5650/jos.ess25166","DOIUrl":"https://doi.org/10.5650/jos.ess25166","url":null,"abstract":"<p><p>Shiga toxin type 2 (Stx2)-producing Escherichia coli O157H7 has become a global risk to public health. The study aimed to investigate the emergence of antimicrobial resistance patterns in the clinical isolates of E. coli. The isolates revealed a pattern of strong resistance to the majority of the common antibiotics. Most E. coli isolates were susceptible to gentamicin and were classified as MDR. The Stx2 determinant was screened in E. coli O157:H7 isolates through the PCR technique, and the Stx2 was purified by cation exchange and gel filtration chromatography. The purification yielded 5.2 milligrams of pure Stx2. Nigella sativa oil's obtained by the mechanical expression of seeds at room temperature was evaluated for its antibacterial activity against 16 E. coli O157:H7 isolates at different concentrations. The oil induced inhibition zone diameter of 9.83, 16.71, and 27.48 mm at the concentration of 16, 32, and 64 μg/mL, respectively. Minimum inhibitory concentration (MIC) of N. sativa seed oil (NSSO) and gentamicin-treated biofilm-forming different isolates ranged from 64-502 and 32-256 μg/mL, respectively. Optical density (O.D.) and viable counts showed significant differences before and after the treatment with sub-MIC. The injections of Stx2 caused microangiopathy in mice, including hemolytic anemia, thrombocytopenia, and renal impairment. The Stx2 also caused microvascular thrombosis and other histologic damage in the kidney, spleen, and liver, as well as a significant reduction in the splenic size of the infected mice. The results showed that the variance in the values of the complete blood count, as well as histopathological alteration in the spleen, occurred in mice treated with Nigella sativa oil, which was improved compared with the control. This study is the first report on NSSO exhibiting inhibitory activity on E. coli and its Shiga toxin, which can also inhibit virulence in E. coli, thereby suggesting it as an alternative for therapy.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 5","pages":"627-639"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147839246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization of the Bactericidal Actions of a High-Purity Sophoroselipid-Copper Complex. 高纯度槐磷脂-铜配合物杀菌作用的表征。
IF 1.8 4区 农林科学
Journal of oleo science Pub Date : 2026-01-01 DOI: 10.5650/jos.ess25204
Yuichi Kumashita, Taichi Kamo, Hiroki Masuda, Aika Kubo, Reiko Matsumura, Miho Sasaki, Yoshihiko Hirata, Yoshinobu Matsumura
{"title":"Characterization of the Bactericidal Actions of a High-Purity Sophoroselipid-Copper Complex.","authors":"Yuichi Kumashita, Taichi Kamo, Hiroki Masuda, Aika Kubo, Reiko Matsumura, Miho Sasaki, Yoshihiko Hirata, Yoshinobu Matsumura","doi":"10.5650/jos.ess25204","DOIUrl":"https://doi.org/10.5650/jos.ess25204","url":null,"abstract":"<p><p>In this study, a high-purity sophoroselipid-copper (SL-Cu) complex was synthesized using an improved method employing copper (II) acetate. Fourier transform infrared analysis of the purified SL-Cu complex revealed a distinctive absorption peak near 1,600 cm⁻¹. The bactericidal activity of the SL-Cu complex, at a copper (II) ion concentration of 1,000 µM and after incubation at 20°C for 30 min, exhibited a reduction greater than 4 log units against Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa. In contrast, its bactericidal activity against Enterococcus faecalis was comparatively lower, with a reduction of 0.90 log units. Furthermore, the SL-Cu complex demonstrated a statistically higher antibacterial efficacy against E. coli and S. aureus than CuSO<sub>4</sub> at the same copper (II) ion concentration. The bactericidal effect of the SL-Cu complex against E. coli was enhanced with increasing treatment temperatures between 15 and 40°C, consistently surpassing that of CuSO<sub>4</sub> across all tested temperatures. The inhibitory effects of bovine serum albumin, sodium chloride, EDTA-2Na, and 2,2 bipyridyl on the SL-Cu complex were restricted compared to those on CuSO<sub>4</sub>, and in some experiments, these chemicals even enhanced its activity. These characteristics render the SL-Cu complex a promising antibacterial reagent. Flow cytometry analyses using fluorescent dyes suggested that the SL-Cu complex disrupted bacterial cell membranes and induced the generation of reactive oxygen species.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 2","pages":"133-142"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146100342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Assessment of the Antioxidant, Antimicrobial, and Anti-inflammatory Properties of Eleutherine bulbosa (Mill.) Urb. Extract. 叶葱属植物抗氧化、抗菌和抗炎特性的研究市区。提取。
IF 1.8 4区 农林科学
Journal of oleo science Pub Date : 2026-01-01 DOI: 10.5650/jos.ess25128
Huong Thi Thanh Pham, Diep Thi Thanh Le, Anh Quoc Khuong Nguyen
{"title":"An Assessment of the Antioxidant, Antimicrobial, and Anti-inflammatory Properties of Eleutherine bulbosa (Mill.) Urb. Extract.","authors":"Huong Thi Thanh Pham, Diep Thi Thanh Le, Anh Quoc Khuong Nguyen","doi":"10.5650/jos.ess25128","DOIUrl":"https://doi.org/10.5650/jos.ess25128","url":null,"abstract":"<p><p>Eleutherine bulbosa is a medicinal plant known for its rich content of bioactive compounds, particularly polyphenols and flavonoids, which contribute to its notable antioxidant, antibacterial, and anti-inflammatory properties. In this study, ultrasound-assisted extraction of E. bulbosa tubers was performed using 96% ethanol (EtOH_96), water (W), and a 1:1 ethanol-water mixture (EtOH_96:W). The extracts were assessed for biological activities through 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2 '-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) radical scavenging assays, agar well diffusion, minimum inhibitory concentration (MIC), and anti-inflammatory tests. Among the solvents, EtOH_96 yielded the highest antioxidant activity, with IC<sub>50</sub> values of 202.2 ± 17.6 µg/mL (DPPH) and 250.8 ± 7.8 µg/mL (ABTS). These effects corresponded to elevated levels of polyphenols (94.9 ± 4.0 mg gallic acid equivalent (GAE)/g dry weight (DW)) and flavonoids (119.3 ± 17.1 mg quercetin equivalent (QE)/g dry weight (DW)). Additionally, the EtOH_96 extract displayed antibacterial activity against Staphylococcus aureus and Escherichia coli with MIC values of 6.25 mg/mL and suppressed heat-induced protein denaturation with an IC<sub>50</sub> value of 86.0 µg/mL, highlighting E. bulbosa tubers as a credible source of phytotherapeutics for both animal and human use.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 2","pages":"181-196"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146100383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Distinct Composition-dependent Biodis-tribution Patterns of Phospholipid Liposomes. 磷脂脂质体的独特成分依赖生物分布模式。
IF 1.8 4区 农林科学
Journal of oleo science Pub Date : 2026-01-01 DOI: 10.5650/jos.ess25148
Takahito Kawano, Jeong-Hun Kang, Masaharu Murata
{"title":"Distinct Composition-dependent Biodis-tribution Patterns of Phospholipid Liposomes.","authors":"Takahito Kawano, Jeong-Hun Kang, Masaharu Murata","doi":"10.5650/jos.ess25148","DOIUrl":"https://doi.org/10.5650/jos.ess25148","url":null,"abstract":"<p><p>Phosphatidylserine (PS) and phosphatidylethanolamine (PE) act as an \"eat-me\" signal for phagocytes to engulf apoptotic cells. The aim of our study was to investigate the biodistribution of PS- or PE-containing liposomes. Three phospholipid liposomes (DOPC/DOPS, DOPC/DOPE, and DOPC/soybean PS) were intravenously injected and analyzed. DOPC/DOPS showed higher average radiant efficiency (intensity/area) in the lung, liver, kidney, and heart than DOPC/DOPE. The total and average radiant efficiency of DOPC/DOPS was higher than that of DOPC/soybean PS in the lung, liver, and kidney. These results suggest that the biodistribution of anionic phospholipid liposomes depends on their phospholipid composition.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 1","pages":"45-50"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145900594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biotechnological Evaluation of Anti-microbial and Anti-biofilm Properties of Biosurfactants Isolated from Catla catla Fats Derived Bacteria. 从鲶鱼脂肪衍生细菌中分离的生物表面活性剂的抗菌和抗生物膜性能的生物技术评价。
IF 1.8 4区 农林科学
Journal of oleo science Pub Date : 2026-01-01 DOI: 10.5650/jos.ess25217
Husna Jurrat, Iram Liaqat, Sajida Naseem, Asma Abdul Latif, Gulbeena Saleem, Abid Ali, Muhammad Nauman Aftab, Sikander Ali, Mirjalol Ismoilov
{"title":"Biotechnological Evaluation of Anti-microbial and Anti-biofilm Properties of Biosurfactants Isolated from Catla catla Fats Derived Bacteria.","authors":"Husna Jurrat, Iram Liaqat, Sajida Naseem, Asma Abdul Latif, Gulbeena Saleem, Abid Ali, Muhammad Nauman Aftab, Sikander Ali, Mirjalol Ismoilov","doi":"10.5650/jos.ess25217","DOIUrl":"10.5650/jos.ess25217","url":null,"abstract":"<p><p>Antibiotic resistance and biofilm-associated infections are major global health concerns, requiring sustainable antimicrobial alternatives. This study aimed to evaluate the antibacterial, antifungal, and antibiofilm potential of biosurfactants produced by Bacillus strains (H1, H2, and H5) isolated from the fat of Catla catla, a freshwater fish from the Sutlej River, Pakistan. The biosurfactants were extracted, purified, and characterized using Fourier transform infrared spectroscopy, high-performance liquid chromatography, and mass spectrometry. Quantitative analysis revealed that strain H5 produced the highest levels of surfactin (107.5 ± 0.3 mg L<sup>-1</sup>) and iturin A (60.5 ± 0.5 mg L<sup>-1</sup>). The biosurfactants exhibited strong antibacterial activity, producing inhibition zones of up to 28.3 ± 0.3 mm against Bacillus licheniformis and 24.3 ± 0.3 mm against Escherichia coli. Minimum inhibitory and bactericidal concentrations against Staphylococcus aureus were 6.6 ± 0.6 µg mL<sup>-1</sup> and 11.8 ± 0.4 µg mL<sup>-1</sup>, respectively. Antifungal tests showed up to 34.6 ± 0.3 mm inhibition zones against Fusarium moniliforme. Antibiofilm assays demonstrated that the extracellular biosurfactant from strain H2 achieved the highest inhibition (82.7 ± 0.3 %) at 50 µg mL<sup>-1</sup>. Phylogenetic analysis confirmed the isolates as Bacillus subtilis (PV789583), Bacillus thuringiensis (PV789584), and Bacillus cereus (PV789585). These findings indicate that biosurfactants derived from Catla catla fat as a substrate represent a cost-effective and eco-friendly source of potent antimicrobial and antibiofilm compounds with promising biotechnological and therapeutic applications.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 3","pages":"251-270"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147325713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nanoarchitectonics of Nanoporous Carbon Materials from Achyranthus bidentata (Datiwan) Stem for Supercapacitor Applications. 超级电容器用牛膝草纳米多孔碳材料的纳米结构研究。
IF 1.8 4区 农林科学
Journal of oleo science Pub Date : 2026-01-01 DOI: 10.5650/jos.ess25269
Aabha Puri, Sabina Shahi, Chhabi Lal Gnawali, Katsuhiko Ariga, Lok Kumar Shrestha
{"title":"Nanoarchitectonics of Nanoporous Carbon Materials from Achyranthus bidentata (Datiwan) Stem for Supercapacitor Applications.","authors":"Aabha Puri, Sabina Shahi, Chhabi Lal Gnawali, Katsuhiko Ariga, Lok Kumar Shrestha","doi":"10.5650/jos.ess25269","DOIUrl":"10.5650/jos.ess25269","url":null,"abstract":"<p><p>Biomass is a sustainable carbon source to produce porous carbon materials. Due to the high surface area, tunable porosity, surface functionalities and high chemical stability, biomass carbons have extensively explored in sensing, separation, and energy storage and conversion applications. Here, we report on the fabrication of nanoporous activated carbon materials from a novel biomass precursor Achyranthus bidentata (Datiwan), using a low-energy method (carbonized at 500 °C). The effects of chemical activators (phosphoric acid (H<sub>3</sub>PO<sub>4</sub>), potassium hydroxide (KOH), and zinc chloride (ZnCl<sub>2</sub>) on surface textural properties and energy storage capacity were systematically studied. The H<sub>3</sub>PO<sub>4</sub> and ZnCl<sub>2</sub> activated samples (DAC-H500, DAC-Z500) exhibited the specific surface area of 724 and 758 m<sup>2</sup> g<sup>-1</sup>, respectively, and retained abundant surface oxygen functionalities, thereby leveraging decent specific capacitance of 201 F g<sup>-1</sup> and 140 F g<sup>-1</sup> at 1 A g<sup>-1</sup> with 51 % and 61.3 % retention of their initial capacitance values at 10 A g<sup>-1</sup>. The symmetric cell assembled with the DAC-Z500 delivered 3.5 Wh kg<sup>-1</sup> energy density at a power density of 590 W kg<sup>-1</sup> with good cycle life of 76 % and 98 % coulombic efficiency after 10,000 consecutive charge/discharge cycles. Datiwan, a self-grown, abundant biomass that is indirectly contributing to carbon emissions, is being utilized to prepare nanoporous carbon at a lower temperature, and it shows significant potential as an electrode material in energy storage applications.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 3","pages":"367-378"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147326063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Siphon-type Washing Technique with Liquids Containing Microbubbles for Removing Soiled Models from Solid Surfaces. 含微泡液体的虹吸式洗涤技术,用于从固体表面去除污垢模型。
IF 1.8 4区 农林科学
Journal of oleo science Pub Date : 2026-01-01 DOI: 10.5650/jos.ess25258
Torakage Kawasaki, Ryo Yamanouchi, Akiomi Ushida
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