Tenside Surfactants Detergents最新文献_第7页

Preparation, characterization, and stability of lipid nanoparticles including unsaturated lipids 脂质纳米颗粒的制备、表征和稳定性，包括不饱和脂质

4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-09-20 DOI: 10.1515/tsd-2023-2544

Yeseul Park, Jin-Won Park

引用次数: 0

Simulation of adsorption at rotating disk 旋转圆盘吸附的模拟

4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-09-12 DOI: 10.1515/tsd-2023-2522

Milivoj Lovrić

{"title":"Simulation of adsorption at rotating disk","authors":"Milivoj Lovrić","doi":"10.1515/tsd-2023-2522","DOIUrl":"https://doi.org/10.1515/tsd-2023-2522","url":null,"abstract":"Abstract Diffusion-controlled adsorption at the rotating disk is calculated for Frumkin isotherm. The near equilibrium isotherms are simulated and their time components are analysed. The purpose of the work is to investigate the physical meanings of S-shaped isotherms that appear for strong attractions in the adsorbed layer. It is demonstrated that the surface coverage that is created gradually, by the diffusion process, consumes the concentration gradient of the dissolved surfactant in the diffusion layer. Once the equilibrium with the bulk of the solution is established, the driving force of diffusion-controlled adsorption vanishes and no additional adsorption is possible. The diffusion layer thickness on the rotating disk tends to the constant value and the flux depends only on the concentration of dissolved adsorbent at the disk surface. Hence, the equilibrium with the bulk of solution is established faster than at the stationary disk. This equilibrium takes an infinite amount of time to reach, but the system can approach close to the equilibrium within a definite period of time. The near equilibration time depends on the bulk concentration of surfactant. These relationships exhibit sharp maxima under the influence of attractions in the adsorbed layer.","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135825608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of tetrabutylammonium bromide based ionic liquid on the aggregation behavior of dodecyltrimethylammonium bromide in the range (293.15 K–313.15 K): acoustic and volumetric investigation 四丁基溴化铵离子液体对十二烷基三甲基溴化铵在(293.15 K - 313.15 K)范围内聚集行为的影响:声学和体积学研究

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-09-01 DOI: 10.1515/tsd-2023-2523

H. Hooshyar, Rahmat Sadeghi

引用次数: 0

Frontmatter 头版头条

4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-09-01 DOI: 10.1515/tsd-2023-frontmatter5

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Synthesis and properties of amide-based cationic gemini surfactants with semi-rigid spacer 半刚性间隔基酰胺基阳离子双子表面活性剂的合成与性能

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-09-01 DOI: 10.1515/tsd-2022-2463

Yue Zhou, Haiyan Gao, Hujun Xu, Ying Li, Hongqiang Zhang, Zirui Lu

引用次数: 0

Facile synthesis of novel interpenetrating polymeric network (IPN) from semi-IPN: comparative analysis of biodegradation studies for environmental remediation 由半互穿网络合成新型互穿聚合物网络：环境修复生物降解研究的比较分析

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-08-15 DOI: 10.1515/tsd-2023-2514

Anjali Singh, B. Kaith, D. Sud

引用次数: 0

Investigation of process variable effects on palm kernelamidopropyl betaine production 工艺变量对棕榈仁酰胺丙基甜菜碱生产影响的研究

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-08-03 DOI: 10.1515/tsd-2023-2505

Amanda Nazwa Nur Fatihah, M. Pratiwi, A. N. Istyami, R. Purwadi, D. Lestari

引用次数: 0

Adsorption of Ni2+ by functionalized hydroxyapatite-chitosan composite 功能化羟基磷灰石-壳聚糖复合材料对Ni2+的吸附

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-07-31 DOI: 10.1515/tsd-2022-2479

Ya Xu, Zheng Ji, Yansong Zhang, M. Sha, Chuanrun Li, Huchuan Wang

引用次数: 1

Green removal of low and high levels of Cu(II) and Cr(III) cations from concentrated saline chloride medium achieved by a mixture of N,N′-bis(salicylidene)-thiocarbohydrazide-TritonX-100 micellar system via cloud point extraction process N，N′-双（亚水杨基）-硫代羧酰肼-TritonX-100胶束体系浊点萃取法从浓氯化盐水介质中绿色去除低和高水平的Cu（II）和Cr（III）阳离子

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-07-31 DOI: 10.1515/tsd-2023-2508

Meriem Khiat, H. Reffas, M. Hadj Youcef, T. Benabdallah

{"title":"Green removal of low and high levels of Cu(II) and Cr(III) cations from concentrated saline chloride medium achieved by a mixture of N,N′-bis(salicylidene)-thiocarbohydrazide-TritonX-100 micellar system via cloud point extraction process","authors":"Meriem Khiat, H. Reffas, M. Hadj Youcef, T. Benabdallah","doi":"10.1515/tsd-2023-2508","DOIUrl":"https://doi.org/10.1515/tsd-2023-2508","url":null,"abstract":"Abstract In this work, we performed the cloud point extraction with low and high concentrations of Cu(II) and Cr(III), two particularly toxic metallic pollutants, that have been shown to have adverse effects on human health and the environment. Removal of the metal ions was achieved in the presence of Triton X-100 as a non-ionic surfactant and N,N′-bis(salicylidene)-thiocarbohydrazide as a chelating ligand in concentrated chloride medium. The behavior of the Schiff base was initially investigated in homogeneous DMSO-water and micellar Triton X-100-water media. The obtained values of the acid constants show that the extractant is more acidic in micellar media than in pure aqueous medium. The recorded cloud point temperatures of Triton X-100 are significantly impacted by the sodium chloride concentration, the surfactant concentration, and the Schiff base ligand. Under the optimised experimental conditions, a quantitative extraction of Cu(II) and a maximum extraction rate of 74 % of Cr(III) were obtained. The reduction of the metal concentration from 10−3 mol L−1 to 10−6 mol L−1 resulted in a reduction of the temperature by 10 °C and a reduction of the contact time from 10 h to 3 h.","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43635385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Change in gastric-lipase adsorption on lipid layer by stigmasterols 豆甾醇对脂质层胃脂肪酶吸附的变化

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-07-28 DOI: 10.1515/tsd-2023-2519

Gounhanul Shin, Kunn Hadinoto, Jin-Won Park

{"title":"Change in gastric-lipase adsorption on lipid layer by stigmasterols","authors":"Gounhanul Shin, Kunn Hadinoto, Jin-Won Park","doi":"10.1515/tsd-2023-2519","DOIUrl":"https://doi.org/10.1515/tsd-2023-2519","url":null,"abstract":"Abstract Gastric-lipase (GL) binding to a lipid layer was investigated for the phase of the layer adjusted with the ratio of stigmasterol to the lipid using surface plasmon resonance. While the layer was formed on the hydrophobic surface, more stigmasterol led to lower surface density only in the dipalmitoylphosphatidylcholine (DPPC) layer. The addition of stigmasterol was believed to transform the phase (condensed liquid-phase) of DPPC layer closer to the phase (expanded liquid-phase) of dioleoylphosphatidylcholine (DOPC) layer. At a ratio greater than 15:85, the effect of the stigmasterol on the DPPC was saturated. The adsorption behavior of GL showed the similar trend with the lipid formation. The adsorption increased with the increase in the ratio of stigmasterol to lipid up to 15:85. On the DOPC layer of the expanded liquid-phase, the most adsorption seemed to occur and was indistinguishable from that in the DPPC layer of 15:85. The surface density of the adsorbed GL was interpreted into the fraction of the stigmasterol-dependent DPPC, 0.33, 0.67, and 1.00 for 10:90, 5:95, and 0:100 of DPPC. Furthermore, the equilibrium constant was between 1 × 1013 M−1 and 2 × 1013 M−1 and the kinetics of the adsorption showed an increase in the adsorption rate constant with the increase of the ratio up to 15:85.","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48063268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0