Research Letters in Physical Chemistry最新文献_第3页

Kinetics and Mechanism of Paracetamol Oxidation by Chromium(VI) in Absence and Presence of Manganese(II) and Sodiumdodecyl Sulphate 在不存在和不存在锰和硫酸钠的情况下，铬(VI)氧化扑热息痛的动力学和机理

Research Letters in Physical Chemistry Pub Date : 2007-11-04 DOI: 10.1155/2007/82901

M. Ilyas, M. A. Malik, S. M. A. Andrabi, Z. Khan

引用次数: 10

Fourier-Domain Analysis of Hydriding Kinetics Using Pneumato-Chemical Impedance Spectroscopy 用气化学阻抗谱分析氢化动力学的傅立叶域

Research Letters in Physical Chemistry Pub Date : 2007-10-09 DOI: 10.1155/2007/96251

P. Millet, C. Decaux, R. Ngameni, M. Guymont

引用次数: 7

Surface Adsorption and Replacement of Acid-Oxidized Single-Walled Carbon Nanotubes and Poly(vinyl pyrrolidone) Chains 酸氧化单壁碳纳米管和聚(乙烯基吡咯烷酮)链的表面吸附和取代

Research Letters in Physical Chemistry Pub Date : 2007-10-08 DOI: 10.1155/2007/17378

Wei Chen, Xiaojun Li, L. Dai

引用次数: 1

Anisotropic Vanadium Oxide Nanostructured Host Matrices for Lithium Ion Intercalation 各向异性氧化钒纳米基质用于锂离子嵌入

Research Letters in Physical Chemistry Pub Date : 2007-08-28 DOI: 10.1155/2007/32528

C. O’Dwyer, V. Lavayen, M. Ana, E. Benavente, G. González, C. M. Torres

引用次数: 6

The Study of Influence of the Teslar Technology on Aqueous Solution of Some Biomolecules 特斯拉技术对某些生物分子水溶液影响的研究

Research Letters in Physical Chemistry Pub Date : 2007-08-23 DOI: 10.1155/2007/94286

E. Andreev, G. Dovbeshko, V. Krasnoholovets

{"title":"The Study of Influence of the Teslar Technology on Aqueous Solution of Some Biomolecules","authors":"E. Andreev, G. Dovbeshko, V. Krasnoholovets","doi":"10.1155/2007/94286","DOIUrl":"https://doi.org/10.1155/2007/94286","url":null,"abstract":"The possibility of recording physical changes in aqueos solutions caused by a unique field generated by the Teslar chip (TC) inside a quartz wristwatch has been studied using holographic interferometry. We show that the refraction index of degassed pure distilled water and aqueous solutions of L-tyrosine and b-alanine affected by the TC does not change during the first 10 minutes of influence. In contrast, a 1% aqueous solution of plasma extracted from the blood of a patient with heart vascular disease changes the refractive index when affected by the TC. The characteristic time of reaction is about 10 2 seconds. Based on our prior research experience, we state that the response of the system studied to the TC's field is similar to that stipulated by the action of a constant magnetic field with the intensity of 1.1 × 10 − 3 T. Nevertheless, \u0000our team have unambiguously proved that the \u0000TC generates the inerton field, \u0000which is associated with a substructure of \u0000the matter waves (and, therefore, it does not relate to \u0000the electromagnetic nature). \u0000We could unambiguously prove that the TC generates the inerton field.","PeriodicalId":229171,"journal":{"name":"Research Letters in Physical Chemistry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123442666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Surface Photochemistry: Benzophenone as a Probe for the Study of Modified Cellulose Fibres 表面光化学:二苯甲酮作为探针研究改性纤维素纤维

Research Letters in Physical Chemistry Pub Date : 2007-01-17 DOI: 10.1155/2007/18278

L. Ferreira, Alexandra I. Costa, I. Machado, T. Branco, S. Boufi, M. Rei-Vilar, A. Rego

{"title":"Surface Photochemistry: Benzophenone as a Probe for the Study of Modified Cellulose Fibres","authors":"L. Ferreira, Alexandra I. Costa, I. Machado, T. Branco, S. Boufi, M. Rei-Vilar, A. Rego","doi":"10.1155/2007/18278","DOIUrl":"https://doi.org/10.1155/2007/18278","url":null,"abstract":"This work reports the use of benzophenone, a very \u0000 well characterized probe, to study new hosts (i.e., modified \u0000 celluloses grafted with alkyl chains bearing 12 carbon atoms) \u0000 by surface esterification. Laser-induced room temperature \u0000 luminescence of air-equilibrated or argon-purged solid \u0000 powdered samples of benzophenone adsorbed onto the two \u0000 modified celluloses, which will be named C12-1500 and \u0000 C12-1700, revealed the existence of a vibrationally structured \u0000 phosphorescence emission of benzophenone in the case where \u0000 ethanol was used for sample preparation, while a nonstructured \u0000 emission of benzophenone exists when water was used instead of \u0000 ethanol. The decay times of the benzophenone emission vary \u0000 greatly with the solvent used for sample preparation and do \u0000 not change with the alkylation degree in the range of \u0000 1500–1700 micromoles of alkyl chains per gram of cellulose. \u0000 When water was used as a solvent for sample preparation, the \u0000 shortest lifetime for the benzophenone emission was observed; \u0000 this result is similar to the case of benzophenone adsorbed \u0000 onto the “normal” microcrystalline cellulose \u0000 surface, with this latter case previously reported by Vieira \u0000 Ferreira et al. in 1995. This is due to the more efficient \u0000 hydrogen abstraction reaction from the glycoside rings of \u0000 cellulose when compared with hydrogen abstraction from the \u0000 alkyl chains of the modified celluloses. Triplet-triplet \u0000 transient absorption of benzophenone was obtained in both \u0000 cases and is the predominant absorption immediately after \u0000 laser pulse, while benzophenone ketyl radical formation occurs \u0000 in a microsecond time scale both for normal and modified \u0000 celluloses.","PeriodicalId":229171,"journal":{"name":"Research Letters in Physical Chemistry","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128690596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4