U.S. flag

An official website of the United States government

PubAg

Main content area

You searched for: Journal Electrophoresis Remove constraint Journal: Electrophoresis Publication Year 2019 Remove constraint Publication Year: 2019 Subject bacteria Remove constraint Subject: bacteria
Start Over

Search

11  Search Results

1 - 11 of 11
Number of results to display per page

Search Results

1. Il n'y a pas d'amour heureux pour Casanova: Chemical‐ and bio‐analysis of his Memoirs

Author:
Zilberstein, Gleb; Zilberstein, Roman; Zilberstein, Svetlana; Fau, Guillaume; D'Amato, Alfonsina; Righetti, Pier Giorgio
Source:
Electrophoresis 2019 v.40 no.23-24 pp. 3050-3056
ISSN:
0173-0835
Subject:
Lactobacillus; Streptococcus uberis; animal diseases; bacteria; cations; cultural heritage; electrophoresis; ethylene-vinyl acetate; mass spectrometry; resins; saliva; sexually transmitted diseases; France
Abstract:
... The original manuscript of Casanova's Memoirs is stored at the Bibliothèque Nationale de France in Paris. We have gained access to it and explored the surfaces of chapters one and two (via the ethylene vinyl acetate [EVA] film technology, i.e., of diskettes of ethylene vinyl acetate with embedded strong cation and anion exchangers and C8 resins) in search of potential diseases of the author, espec ...
DOI:
10.1002/elps.201800505

2. Bacillus licheniformis peptidoglycan characterization by CZE–MS: Assessment with the benchmark RP‐HPLC‐MS method

Author:
Boulanger, Madeleine; Delvaux, Cédric; Quinton, Loïc; Joris, Bernard; De Pauw, Edwin; Far, Johann
Source:
Electrophoresis 2019 v.40 no.20 pp. 2672-2682
ISSN:
0173-0835
Subject:
Bacillus licheniformis; N-acetylglucosamine; acetylation; bacteria; cell growth; cell walls; electron transfer; electrophoresis; glycopeptides; hydrophilicity; lysozyme; moieties; peptidoglycans; polymers; reversed-phase liquid chromatography; screening
Abstract:
... Peptidoglycan or murein is an essential polymer found in bacterial cell wall. It is a dynamic structure that is continuously remodeled or modified during bacterial cell growth or in presence of cell wall stresses. These modifications are still poorly understood mainly due to the peptidoglycan, which is rather non‐soluble, and the difficulties to separate the hydrophilic glycopeptides (muropeptides ...
DOI:
10.1002/elps.201900147

3. Comparative proteomics analysis between biofilm and planktonic cells of Mycobacterium tuberculosis

Author:
Wang, Chao; Zhang, Qiaoli; Wang, Yang; Tang, Xudong; An, Yanan; Li, Shulin; Xu, Hongyue; Li, Yan; Luan, Wenjing; Wang, Xuefei; Liu, Mingyuan; Yu, Lu
Source:
Electrophoresis 2019 v.40 no.20 pp. 2736-2746
ISSN:
0173-0835
Subject:
Mycobacterium tuberculosis; anti-infective agents; antigens; bacteria; binding proteins; biofilm; catalytic activity; cell walls; drug resistance; electrophoresis; gene ontology; liquid chromatography; mass spectrometry; metabolism; pathogenicity; phenotype; plankton; proteomics; tuberculosis; vaccines
Abstract:
... Tuberculosis is highly persistent and displays phenotypic resistance to high concentrations of antimicrobials. Recent reports exhibited that Mycobacterium tuberculosis biofilm was implicated to its pathogenicity and drug resistance. In this study, there were 47 kinds of differential proteins in the biofilm of M. tuberculosis H37Rv cells compared with the planktonic bacteria, and 37 proteins were n ...
DOI:
10.1002/elps.201900030

4. Study of the effect of culture mediums on the amino acid metabolites for Corynebacterium glutamicum using high‐speed micellar electrokinetic chromatography

Author:
Wang, Wei; Bai, Ruiguang; Zhang, Huimin; Cai, Xiaoyu
Source:
Electrophoresis 2019 v.40 no.20 pp. 2665-2671
ISSN:
0173-0835
Subject:
Corynebacterium glutamicum; bacteria; carbon; derivatization; electrophoresis; glucose; lysine; metabolism; metabolites; micellar electrokinetic capillary chromatography; microbial fuel cells; nitrogen; sulfur; valine
Abstract:
... Corynebacterium glutamicum (C. glutamicum) is a well‐known workhorse for the industrial production of amino acids. Different carbon, nitrogen, and sulfur source may force the bacterium to produce specific metabolites. In this work, a method of high‐speed MEKC with LIF detection was developed to rapidly analyze the amino acid metabolites released by C. glutamicum, which is fed with different cultur ...
DOI:
10.1002/elps.201900010

5. Limitations of the Clausius‐Mossotti function used in dielectrophoresis and electrical impedance studies of biomacromolecules

Author:
Pethig, Ronald
Source:
Electrophoresis 2019 v.40 no.18-19 pp. 2575-2583
ISSN:
0173-0835
Subject:
DNA; bacteria; dielectrophoresis; electric impedance; electrophoresis; proteins; virion
Abstract:
... Dielectrophoresis (DEP) studies have progressed from the microscopic scale of cells and bacteria, through the mesoscale of virions to the molecular scale of DNA and proteins. The Clausius‐Mossotti function, based on macroscopic electrostatics, is invariably employed in the analyses of all these studies. The limitations of this practice are explored, with the conclusion that it should be abandoned ...
DOI:
10.1002/elps.201900057

6. Biomimetic preparation of core‐shell structured surface‐enhanced Raman scattering substrate with antifouling ability, good stability, and reliable quantitative capability

Author:
Chen, Na; Meng, Xinyu; Ding, Pan; Su, Yuanyuan; Wang, Houyu; He, Yao
Source:
Electrophoresis 2019 v.40 no.16-17 pp. 2172-2179
ISSN:
0173-0835
Subject:
Raman spectroscopy; bacteria; biomimetics; detection limit; electrophoresis; fouling; hydrogen peroxide; mercury; municipal wastewater; nanosilver; nitric acid; polyphenols; reducing agents; silicon; silver; tea; vibration
Abstract:
... The fouling and stability are two most critical limiting factors for practical applications of surface‐enhanced Raman scattering (SERS)‐based microfluidic electrophoresis device. Herein, we present a novel biomimetic nanoengineering strategy to achieve a SERS substrate featuring antifouling ability, good stability, and reliable quantitative capability. Typically, by employing tea polyphenol as the ...
DOI:
10.1002/elps.201800538

7. Recent development in chitosan nanocomposites for surface‐based biosensor applications

Author:
Jiang, Yu; Wu, Jayne
Source:
Electrophoresis 2019 v.40 no.16-17 pp. 2084-2097
ISSN:
0173-0835
Subject:
agricultural industry; bacteria; biocompatibility; bioprocessing; biosensors; chitosan; electrophoresis; environmental monitoring; glucose; moieties; nanocomposites; nanomaterials; permeability; proteins; strength (mechanics)
Abstract:
... Recent years have witnessed ever expanding use of biosensors in the fields of environmental monitoring, homeland security, pharmaceutical, food and bioprocessing, and agricultural industries. To produce effective and reliable biosensors, good quality immobilization of biological recognition elements is critical. Chitosan and its nanocomposites emerge as an excellent immobilization matrix on biosen ...
DOI:
10.1002/elps.201900066
CHORUS:
10.1002/elps.201900066

8. Simultaneous isolation and label‐free identification of bacteria using contactless dielectrophoresis and Raman spectroscopy

Author:
Hanson, Cynthia; Barney, Jacob T.; Bishop, Morgan M.; Vargis, Elizabeth
Source:
Electrophoresis 2019 v.40 no.10 pp. 1446-1456
ISSN:
0173-0835
Subject:
Raman spectroscopy; agar; bacteria; dielectrophoresis; electrodes; electrophoresis; fouling; heat; polystyrenes
Abstract:
... The traditional bacterial identification method of growing colonies on agar plates can take several days to weeks to complete depending on the growth rate of the bacteria. Successfully decreasing this analysis time requires cell isolation followed by identification. One way to decrease analysis time is by combining dielectrophoresis (DEP), a common technique used for cell sorting and isolation, an ...
DOI:
10.1002/elps.201800389

9. Dielectrophoretic separation of microalgae cells in ballast water in a microfluidic chip

Author:
Wang, Yanjuan; Wang, Junsheng; Wu, Xudong; Jiang, Zong; Wang, Wei
Source:
Electrophoresis 2019 v.40 no.6 pp. 969-978
ISSN:
0173-0835
Subject:
Closterium; bacteria; ballast water; dielectrophoresis; electric field; electrodes; electrophoresis; microalgae; microparticles; microplastics; organ-on-a-chip
Abstract:
... The composition of the ship's ballast water is complex and contains a large number of microalgae cells, bacteria, microplastics, and other microparticles. To increase the accuracy and efficiency of detection of the microalgae cells in ballast water, a new microfluidic chip for continuous separation of microalgae cells based on alternating current dielectrophoresis was proposed. In this microfluidi ...
DOI:
10.1002/elps.201800302

10. High‐throughput 96‐well solid‐phase extraction for preparation of tetracycline followed by liquid chromatography and mass spectrometry analysis

Author:
Chen, Kang; Wang, Jie; Li, Shiyan; Wang, Yang; Zhang, Yiqi; Shen, Qing
Source:
Electrophoresis 2019 v.40 no.4 pp. 555-562
ISSN:
0173-0835
Subject:
Mycoplasma; Spirochaetes; aquaculture; bacteria; electrophoresis; labor; methanol; microparticles; pH; protocols; quarantine; solid phase extraction; solvents; sorbents; tandem mass spectrometry; tetracycline; ultra-performance liquid chromatography
Abstract:
... Tetracyclines abuse has frequently occurred in aquaculture against bacteria, rickettsiae, spirochetes, and mycoplasmas. In this study, a high‐throughput sample preparation method was developed using 96‐well plate solid‐phase extraction (p‐SPE) and the extract was analyzed by ultra‐performance liquid chromatography tandem mass spectrometry (UPLC‐MS/MS). The experimental conditions were optimized su ...
DOI:
10.1002/elps.201800473

11. Microfluidic based impedance biosensor for pathogens detection in food products

Author:
Abdullah, Amjed; Dastider, Shibajyoti Ghosh; Jasim, Ibrahem; Shen, Zhenyu; Yuksek, Nuh; Zhang, Shuping; Dweik, Majed; Almasri, Mahmoud
Source:
Electrophoresis 2019 v.40 no.4 pp. 508-520
ISSN:
0173-0835
Subject:
Escherichia coli O157; Salmonella Typhimurium; antibodies; bacteria; biosensors; chicken meat; dielectrophoresis; electrodes; electrophoresis; glass; pathogens; raw chicken meat
Abstract:
... A MEMS‐based impedance biosensor was designed, fabricated, and tested to effectively detect the presence of bacterial cells including E. coli O157:H7 and Salmonella typhimurium in raw chicken products using detection region made of multiple interdigitated electrode arrays. A positive dielectrophoresis based focusing electrode was used in order to focus and concentrate the bacterial cells at the ce ...
DOI:
10.1002/elps.201800405