Journal of physical chemistry & biophysics最新文献_第8页

Oscillations in Water Luminescence Recapitulate Periodic Changes Attributed to Ortho-Para Spin Pairs of Water Hydrogens 水的发光振荡再现了水氢原子对自旋对的周期性变化

Journal of physical chemistry & biophysics Pub Date : 2016-03-29 DOI: 10.4172/2161-0398.1000211

J. Morré, Matthew C. Pharris, R. Pendleton, D. Morré, S. Gudkov, S. Zakharov

引用次数: 3

The weighted mean and its improved dispersion 加权均值及其改进的离散度

Journal of physical chemistry & biophysics Pub Date : 2016-03-14 DOI: 10.4172/2161-0398.C1.017

G. L. Gutsev

引用次数: 5

Influence of Localized Surface Charge Distributions on the Dielectric Relaxation Spectra of Spherical Colloidal Particles in Aqueous Solution 局域表面电荷分布对水溶液中球形胶体粒子介电弛豫谱的影响

Journal of physical chemistry & biophysics Pub Date : 2016-03-10 DOI: 10.4172/2161-0398.1000209

C. Cametti

引用次数: 2

Characterization of Generated Voltage, Current, Power and Power Density from Cow Dung Using Double Chambered Microbial Fuel Cell 利用双室微生物燃料电池对牛粪产生的电压、电流、功率和功率密度进行表征

Journal of physical chemistry & biophysics Pub Date : 2016-03-07 DOI: 10.4172/2161-0398.1000208

An, Parkash

{"title":"Characterization of Generated Voltage, Current, Power and Power Density from Cow Dung Using Double Chambered Microbial Fuel Cell","authors":"An, Parkash","doi":"10.4172/2161-0398.1000208","DOIUrl":"https://doi.org/10.4172/2161-0398.1000208","url":null,"abstract":"The present work deals with the fabrication of a laboratory scale double chambered microbial fuel cell (MFC) to generate electricity from cow dung. The experiment was performed to generate electricity from locally available cow dung as substrate using the fabricated MFC. The device was operated at anaerobic condition at varying time duration of 6 days, PVC pipe was used to make a salt bridge using agarose. The experimental readings were recorded at an interval of 1 hour. The performance was evaluated by characterizing the generated voltage, current, power and power surface density. It was observed that despite of high impedance of the substrate, all the general parameters have shown maximum values at day 5 and then a decline in trend was observed on 6 days onwards. The corresponding maximum values of the generated parameters are 0.825 V, 0.0113 μA, 0.009223 μW and 0.000000947 mW/m2. The obtained graphs of voltage, current, power and power density were also found to have similar pattern. Thus, this study has demonstrated such that the fabricated MFC can be used for electrical energy generation from cow dung and other biowaste.","PeriodicalId":94103,"journal":{"name":"Journal of physical chemistry & biophysics","volume":"17 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82178764","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: 15

Comments on the Extensivity of the Boltzmann Entropy 关于玻尔兹曼熵的广泛性的评论

Journal of physical chemistry & biophysics Pub Date : 2016-03-07 DOI: 10.4172/2161-0398.1000207

Rol, Riek, Alex, E. Sobol'

引用次数: 5

Thermal Properties and Phase Behavior of Water - n-pentane and Water -n-hexane Systems 水-正戊烷和水-正己烷体系的热性质和相行为

Journal of physical chemistry & biophysics Pub Date : 2016-02-26 DOI: 10.4172/2161-0398.1000205

S. Rasulov, I. A. Isaev, S. Orakova

引用次数: 0

MD Simulation Studies of Fumarase Reveal Thermo Dynamical Stability 富马酸酶的MD模拟研究揭示了其热力学稳定性

Journal of physical chemistry & biophysics Pub Date : 2016-02-23 DOI: 10.4172/2161-0398.1000206

S. P. Singh, C. R. Deb, N. Lakhmi, an Kakati, B. K. Konwar

引用次数: 1

Surface FTIR Techniques to Analyze the Conformation of Proteins/ Peptides in H2O Environment 表面FTIR技术分析蛋白质/多肽在水环境中的构象

Journal of physical chemistry & biophysics Pub Date : 2016-02-09 DOI: 10.4172/2161-0398.1000202

J. D. Combs, C. U. Gonzalez, Chengshan Wang

{"title":"Surface FTIR Techniques to Analyze the Conformation of Proteins/ Peptides in H2O Environment","authors":"J. D. Combs, C. U. Gonzalez, Chengshan Wang","doi":"10.4172/2161-0398.1000202","DOIUrl":"https://doi.org/10.4172/2161-0398.1000202","url":null,"abstract":"Proteins/peptides, which are involved in various biochemical processes in biological systems, contain infrared (IR) active vibrations. Among all the IR absorption bands of proteins/peptides, the amide I band arises mainly from the stretching vibration of the carbonyls (C=O) in backbone amide bonds and is sensitive to the conformations (such as α– helix, β–sheet, unstructured conformation, and so on) in a protein/peptide. Therefore, the amide I band has been used to monitor the biophysical/biochemical behavior of proteins/peptides in biological samples (e.g., living cells or tissues). However, obtaining reproducible IR spectra of proteins/peptides in H2O solution was challenging by direct transmission measurement using a liquid cell with milli-meter level path length, due to the intensive IR absorption of H2O around 1620 cm-1 which overlaps the amide I band. Thus, lots of the IR spectra of proteins/peptides were accomplished in D2O, which has IR absorption around 1200 cm-1. Since D2O may not be a favorable solvent for biological samples, the position of the amide I band of various conformations was needed as a reference for biological samples. Consequently, various surface FTIR techniques (such as Infrared Reflection-Absorption Spectroscopy or IRRAS, and Attenuated Total Reflection or ATR) have been developed to obtain the IR spectra of proteins/peptides in H2O environment and have been reviewed here.","PeriodicalId":94103,"journal":{"name":"Journal of physical chemistry & biophysics","volume":"225 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2016-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83666291","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: 8

emi-closed Microfluidics Systems in the Modification of Surface Adhesion 半封闭微流体系统在表面粘附改性中的应用

Journal of physical chemistry & biophysics Pub Date : 2016-01-30 DOI: 10.4172/2161-0398.1000200

L. Prieto-Lopez, Jiaxi Cui

引用次数: 0

The Journal of Physical Chemistry and Biophysics in a Turbulent World of Ever-Increasing Scientific Output 《科学产出不断增加的动荡世界中的物理化学和生物物理学杂志》

Journal of physical chemistry & biophysics Pub Date : 2016-01-22 DOI: 10.4172/2161-0398.1000E131

S. Tatulian

{"title":"The Journal of Physical Chemistry and Biophysics in a Turbulent World of Ever-Increasing Scientific Output","authors":"S. Tatulian","doi":"10.4172/2161-0398.1000E131","DOIUrl":"https://doi.org/10.4172/2161-0398.1000E131","url":null,"abstract":"We live in a world of databases. We are flooded with information. Is it good or bad? It’s certainly a good thing that comes with challenges. It is like a cloud with a silver lining, and the latter is real bright and luminous. Any information about atoms, molecules, supramolecular assemblies is just a few clicks away, something the midand even late20th century researchers could not even dream of. For example, you can attain the sequence and properties, and in most cases the structure, of any protein in less than a minute. Moreover, physical and chemical details of atoms and molecules such as energy levels, transitions, thermodynamics, various kinds of electronic, vibrational, and magnetic resonance spectra, are easily available from multiple databases, such as the 69 Standard Reference Databases offered by the National Institute of Standards and Technology. On the other hand, it’s not easy to keep pace with the fiercely mounting scientific and technology information. Reaxys reports properties of ~ 2.2 million inorganic and organometallic compounds, PubChem offers around 160 million chemical compounds, 60 million chemical structures, and 1 million biological assays [1]. Along with over 100 million DNA and protein sequences involving ~ 260,000 species that are available through the National Center for Biotechnology Information, over 115,000 macromolecular structures deposited in the Protein Data Bank, the amount of information simply becomes incomprehensible. Oftentimes we feel like we can’t see the trees because of the forest.","PeriodicalId":94103,"journal":{"name":"Journal of physical chemistry & biophysics","volume":"69 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2016-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76773997","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: 1