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D’Avino M, Chilton R, Gang S, Sivik MR, Fulton DA. Evaluating the Role of Hydrophobic and Cationic Appendages on the Laundry Performance of Modified Hydroxyethyl Celluloses. Ind Eng Chem Res 2022; 61:14159-14172. [PMID: 36193443 PMCID: PMC9523713 DOI: 10.1021/acs.iecr.2c01698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 11/30/2022]
Abstract
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Soil-release polymers (SRPs) are essential additives
of laundry
detergents whose function is to enable soil release from fabric and
to prevent soil redeposition during the washing cycle. The currently
used SRPs are petrochemical-based; however, SRPs based on biorenewable
polymers would be preferred from an environmental and regulatory perspective.
To explore this possibility, we have synthesized SRPs based on hydroxyethyl
cellulose (amphiphilic HEC) appended with controlled compositions
of hydrophobic and cationic appendages and assessed their cleaning
abilities. The results demonstrate that the introduction of hydrophobic
lauryl appendages onto the HEC backbone is essential to deliver anti-redeposition
and soil-release performance. Conversely, further introduction of
cationic groups onto hydrophobic modified HECs had no clear impact
on soil-release performance but caused significant disadvantages on
anti-redeposition performance. We speculate that this poor performance
arises on account of coacervation formation between the cationic HEC
polymer and the anionic surfactant in the detergent, negatively impacting
soil suspension and suggests that the inclusion of cationic appendages
on HECs can ultimately lead to detrimental effects on performance.
Interestingly, in contrast to conventional SPRs that exhibit good
soil-release performance exclusively on synthetic fabrics, amphiphilic
HEC displayed encouraging results on both synthetic and cotton-based
textiles, possibly as a result of a good chemical affinity with natural
fabrics. This work highlights that the nature and hydrophobic content
of HEC ethers are key variables that govern HEC applicability as SRPs,
thus paving the way for the design and synthesis of new SRPs.
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Affiliation(s)
- Marcellino D’Avino
- Chemistry-School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 8QB, U.K
| | - Ruth Chilton
- Newcastle Innovation Centre, The Procter & Gamble Company, Newcastle upon Tyne NE12 9TS, U.K
| | - Si Gang
- Newcastle Innovation Centre, The Procter & Gamble Company, Newcastle upon Tyne NE12 9TS, U.K
| | - Mark R. Sivik
- Fabric & Home Care Innovation Centre, The Procter & Gamble Company, Cincinnati, Ohio 45202, United States
| | - David A. Fulton
- Chemistry-School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 8QB, U.K
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2
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Abstract
Abstract
The presented chapter deals with structure, morphology, and properties aspects concerning cellulose-based polymers in both research and industrial production, such as cellulose fibers, cellulose membranes, cellulose nanocrystals, and bacterial cellulose, etc. The idea was to highlight the main cellulose-based polymers and cellulose derivatives, as well as the dissolution technologies in processing cellulose-based products. The structure and properties of cellulose are introduced briefly. The main attention has been paid to swelling and dissolution of cellulose in order to yield various kinds of cellulose derivatives through polymerization. The main mechanisms and methods are also presented. Finally, the environmental friendly and green cellulose-based polymers will be evaluated as one of the multifunctional and smart materials with significant progress.
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Affiliation(s)
- Xing Zhou
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology , Xi’an 710048 , P. R. China
- School of Materials Science and Engineering, Xi’an University of Technology , Xi’an 710048 , P. R. China
| | - Yaya Hao
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology , Xi’an 710048 , P. R. China
| | - Xin Zhang
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology , Xi’an 710048 , P. R. China
| | - Xinyu He
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology , Xi’an 710048 , P. R. China
| | - Chaoqun Zhang
- College of Materials and Energy, South China Agricultural University , Guangzhou 510642 , P. R. China
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3
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Jia Y, Cao J, Zhou J, Zhou P. Methyl chitosan coating for glycoform analysis of glycoproteins by capillary electrophoresis. Electrophoresis 2020; 41:729-734. [DOI: 10.1002/elps.201900333] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 01/09/2020] [Accepted: 01/15/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Yaru Jia
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan P. R. China
| | - Jinfeng Cao
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan P. R. China
| | - Jinping Zhou
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan P. R. China
| | - Ping Zhou
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan P. R. China
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4
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Noreen A, Zia KM, Tabasum S, Khalid S, Shareef R. A review on grafting of hydroxyethylcellulose for versatile applications. Int J Biol Macromol 2020; 150:289-303. [PMID: 32004607 DOI: 10.1016/j.ijbiomac.2020.01.265] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 01/03/2020] [Accepted: 01/27/2020] [Indexed: 01/15/2023]
Abstract
Hydroxyethylcellulose (HEC) is a biocompatible, biodegradable, nontoxic, hydrophilic, non- ionic water soluble derivative of cellulose. It is broadly used in biomedical field, paint industry, as a soil amendment in agriculture, coal dewatering, cosmetics, absorbent pads, wastewater treatment and gel electrolyte membranes. Industrial uses of HEC can be extended by the its grafting with different polymers including poly acrylic acid, polyacrylamide, polylactic acid, polyethyleneglycol, polydimethyleamide, polycaprolactone, polylactic acid and dimethylamino ethylmethacrylate. This permits the formation of new biomaterials with improved properties and versatile applications. In this article, a comprehensive overview of graft copolymers of HEC with other polymers/compounds and their applications in drug delivery, stimuli sensitive hydrogels, super absorbents, personal hygiene products and coal dewatering is presented.
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Affiliation(s)
- Aqdas Noreen
- Department of Applied Chemistry, Government College University, Faisalabad 38030-Pakistan
| | - Khalid Mahmood Zia
- Department of Applied Chemistry, Government College University, Faisalabad 38030-Pakistan.
| | - Shazia Tabasum
- Department of Applied Chemistry, Government College University, Faisalabad 38030-Pakistan
| | - Sana Khalid
- Department of Applied Chemistry, Government College University, Faisalabad 38030-Pakistan
| | - Rahila Shareef
- Department of Applied Chemistry, Government College University, Faisalabad 38030-Pakistan
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5
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Spoljaric S, Salminen A, Luong ND, Seppälä J. Ductile nanocellulose-based films with high stretchability and tear resistance. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.06.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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6
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Polikarpov N, Potolytsyna V, Bessonova E, Tripp S, Appelhans D, Voit B, Kartsova L. Dendritic glycopolymers as dynamic and covalent coating in capillary electrophoresis: View on protein separation processes and detection of nanogram-scaled albumin in biological samples. J Chromatogr A 2015; 1378:65-73. [DOI: 10.1016/j.chroma.2014.11.051] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 10/31/2014] [Accepted: 11/17/2014] [Indexed: 12/25/2022]
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7
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Chung M, Kim D, Herr AE. Polymer sieving matrices in microanalytical electrophoresis. Analyst 2014; 139:5635-54. [DOI: 10.1039/c4an01179a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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8
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Stavrou IJ, Moore L, Fernand VE, Kapnissi-Christodoulou CP, Warner IM. Facile preparation of polysaccharide-coated capillaries using a room temperature ionic liquid for chiral separations. Electrophoresis 2013; 34:1334-8. [DOI: 10.1002/elps.201200563] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 01/24/2013] [Accepted: 02/17/2013] [Indexed: 11/06/2022]
Affiliation(s)
| | - Leonard Moore
- Department of Chemistry; Louisiana State University; Baton Rouge; LA; USA
| | - Vivian E. Fernand
- Department of Chemistry; Louisiana State University; Baton Rouge; LA; USA
| | | | - Isiah M. Warner
- Department of Chemistry; Louisiana State University; Baton Rouge; LA; USA
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9
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Zhao L, Zhou J, Zhou H, Yang Q, Zhou P. Hydrophobically modified quaternized celluloses as new dynamic coatings in CE for basic protein separation. Electrophoresis 2013; 34:1593-9. [DOI: 10.1002/elps.201200528] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 01/07/2013] [Accepted: 01/08/2013] [Indexed: 12/12/2022]
Affiliation(s)
| | - Jinping Zhou
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University; Wuhan; P. R. China
| | - Haitao Zhou
- Center for Disease Prevention and Control of Futian District; Shenzhen; P. R. China
| | - Qin Yang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University; Wuhan; P. R. China
| | - Ping Zhou
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University; Wuhan; P. R. China
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10
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Polymerized phospholipid bilayers as permanent coatings for small amine separations using mixed aqueous/organic capillary zone electrophoresis. J Chromatogr A 2012; 1267:80-8. [DOI: 10.1016/j.chroma.2012.07.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Revised: 07/05/2012] [Accepted: 07/06/2012] [Indexed: 11/24/2022]
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11
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Zhao L, Zhou J, Xie H, Huang D, Zhou P. Quaternized celluloses as new dynamic coatings in capillary electrophoresis for basic protein separation. Electrophoresis 2012; 33:1703-8. [DOI: 10.1002/elps.201100678] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Lingguo Zhao
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan; P. R. China
| | - Jinping Zhou
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan; P. R. China
| | - Huan Xie
- Institute of Modern Chinese Medicine; Hong Kong Polytechnic University; Shenzhen; P. R. China
| | - Dihui Huang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan; P. R. China
| | - Ping Zhou
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan; P. R. China
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12
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Zeng R, Luo Z, Zhou D, Cao F, Wang Y. A novel PEG coating immobilized onto capillary through polydopamine coating for separation of proteins in CE. Electrophoresis 2012; 31:3334-41. [PMID: 20803756 DOI: 10.1002/elps.201000228] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The antifouling PEG-immobilized capillary was introduced for the protein separation in CE through mussel adhesive protein inspired polydopamine coating for the first time. The polydopamine, formed by spontaneous oxidative polymerization of dopamine at alkaline in the inner surface of capillary, was exploited to immobilize amine-functionalized PEG onto the capillary surface. During the process, polydopamine-graft-PEG copolymer was formed via Michael addition or Schiff base reactions. The polymer coating was observed using X-ray photoelectron spectroscopy and SEM. And both of them indicated the formation of the polymer coating. A comparative study of EOF showed that the novel coating could provide effective suppression of EOF and minimized adsorption of proteins. As a consequence, fast and efficient separations of three proteins such as lysozyme, cytochrome c, and ribonuclease A were obtained within a broad pH range. Furthermore, the long-term stability of polydopamine-graft-PEG coating in consecutive protein separation runs and the high separation efficiency proved that this novel coating was capable of minimizing protein adsorption during the capillary separation. The successful capillary performance also was demonstrated in the separation of protein mixture and milk powder samples at acidic pH.
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Affiliation(s)
- Rongju Zeng
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, PR China
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13
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Schulze M, Belder D. Poly(ethylene glycol)‐coated microfluidic devices for chip electrophoresis. Electrophoresis 2012; 33:370-8. [DOI: 10.1002/elps.201100401] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Marcel Schulze
- University of Leipzig, Institute of Analytical Chemistry, Leipzig, Germany
| | - Detlev Belder
- University of Leipzig, Institute of Analytical Chemistry, Leipzig, Germany
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14
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Zhou D, Xiang L, Zeng R, Cao F, Zhu X, Wang Y. Graft copolymer composed of cationic backbone and bottle brush-like side chains as a physically adsorbed coating for protein separation by capillary electrophoresis. J Sep Sci 2011; 34:3441-50. [DOI: 10.1002/jssc.201100597] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 08/20/2011] [Accepted: 09/07/2011] [Indexed: 01/17/2023]
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15
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Zhou D, Tan L, Xiang L, Zeng R, Cao F, Zhu X, Wang Y. Brush-like copolymer as a physically adsorbed coating for protein separation by capillary electrophoresis. J Sep Sci 2011; 34:1738-45. [DOI: 10.1002/jssc.201100255] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Revised: 04/25/2011] [Accepted: 04/29/2011] [Indexed: 12/26/2022]
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16
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Lin X, Tan J, Xu S, Xie Z. Phenylaminopropyl-functionalized stationary phase for open-tubular capillary electrochromatography of alkaloids and aromatic acids. J Sep Sci 2011; 34:2337-44. [DOI: 10.1002/jssc.201100175] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Revised: 04/12/2011] [Accepted: 04/12/2011] [Indexed: 11/11/2022]
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17
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Li J, Han H, Wang Q, Liu X, Jiang S. Polymeric ionic liquid-coated capillary for capillary electrophoresis. J Sep Sci 2011; 34:1555-60. [DOI: 10.1002/jssc.201100128] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Revised: 04/02/2011] [Accepted: 04/04/2011] [Indexed: 11/07/2022]
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18
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Cao F, Luo Z, Zhou D, Zeng R, Wang Y. Hydroxyethylcellulose-graft-poly(2-(dimethylamino)ethyl methacrylate) as physically adsorbed coating for protein separation by CE. Electrophoresis 2011; 32:1148-55. [DOI: 10.1002/elps.201000528] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2010] [Revised: 01/10/2011] [Accepted: 01/11/2011] [Indexed: 02/05/2023]
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19
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Zhou S, Tan J, Chen Q, Lin X, Lü H, Xie Z. Carboxymethylchitosan covalently modified capillary column for open tubular capillary electrochromatography of basic proteins and opium alkaloids. J Chromatogr A 2010; 1217:8346-51. [DOI: 10.1016/j.chroma.2010.11.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2010] [Revised: 10/26/2010] [Accepted: 11/02/2010] [Indexed: 11/26/2022]
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20
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Spermine-graft-dextran non-covalent copolymer as coating material in separation of basic proteins and neurotransmitters by capillary electrophoresis. J Chromatogr A 2010; 1217:5130-6. [PMID: 20591436 DOI: 10.1016/j.chroma.2010.06.019] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2009] [Revised: 06/04/2010] [Accepted: 06/04/2010] [Indexed: 11/22/2022]
Abstract
Spermine-graft-dextran (Spe-g-Dex) copolymer was synthesized and used as a non-covalent coating for the separation of proteins and neurotransmitters by capillary electrophoresis. The coating was obtained via flushing the capillary with 1.0% Spe-g-Dex copolymer solution for 2min. Electroosmotic flow (EOF) was strongly suppressed, ranging from -1.60x10(-9) to 3.65x10(-9)m(2)V(-1)s(-1). Effect of experimental conditions, such as the copolymer concentration, the concentration and pH of the background electrolyte (BGE), on the Spe-g-Dex coating was investigated. Separation of lysozyme, cytochrome c, ribonuclease A and alpha-chymotrypsinogen yielded high separation efficiencies ranging from 141000 to 303000plates/m and recoveries from 85.4% to 98.3% at pH 4.0 (284.0mM sodium acetate-acetic acid buffer, I=50mM). Run-to-run repeatabilities and day-to-day, and capillary-to-capillary reproducibilities were all below 1.7%. In addition, Spe-g-Dex coating allowed the successful separation of five neurotransmitters, 5-hydroxytryptamine, dopamine, epinephrine, isoprenaline, dobuamine at pH 4.0 with high separation efficiencies of 290000-449000plates/m.
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Xu J, Yang L, Luo Z, Wang Y. Synthesis of poly(N, N-dimethylacrylamide)-block-poly(ethylene oxide)-block-poly(N, N-dimethylacrylamide) and its application for separation of proteins by capillary zone electrophoresis. Electrophoresis 2010; 31:1713-20. [DOI: 10.1002/elps.200900681] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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El Rassi Z. Electrophoretic and electrochromatographic separation of proteins in capillaries: an update covering 2007-2009. Electrophoresis 2010; 31:174-91. [PMID: 20039288 DOI: 10.1002/elps.200900576] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
This review article covers 3-year period from 2007 to 2009 and is a continuation of the review article by V. Dolnik, [Electrophoresis 2008, 29, 143-156]. This article with 125 references describes recent developments in CE and CEC of proteins in capillary format and does not cover the developments of CE and CEC in microchip format, since Tran et al. review the microchip subject in this special issue. The present review article has four major topics including (i) the separation media, (ii) multidimensional separations, (iii) detection, and (iv) applications.
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Affiliation(s)
- Ziad El Rassi
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078-3071, USA.
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23
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Zhang X, Hsu JP, Chen ZS, Yeh LH, Ku MH, Tseng S. Electrophoresis of a Charge-Regulated Soft Sphere in a Charged Cylindrical Pore. J Phys Chem B 2010; 114:1621-31. [DOI: 10.1021/jp9062093] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaogang Zhang
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Jyh-Ping Hsu
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan 10617
| | - Zheng-Syun Chen
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan 10617
| | - Li-Hsien Yeh
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan 10617
| | - Ming-Hong Ku
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan 10617
| | - Shiojenn Tseng
- Department of Mathematics, Tamkang University, Tamsui, Taipei, Taiwan 25137
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24
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Gulcev MD, McGinitie TM, Bahnasy MF, Lucy CA. Surfactant bilayer coatings in narrow-bore capillaries in capillary electrophoresis. Analyst 2010; 135:2688-93. [DOI: 10.1039/c0an00279h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Yang R, Liu Y, Zheng C. Synthesis of hydroxyethylcellulose-graft-poly(N, N-dimethylacrylamide) copolymer by ATRP and as dynamic coating in capillary electrophoresis. J Appl Polym Sci 2010. [DOI: 10.1002/app.31875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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26
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Wang AJ, Witos J, D'Ulivo L, Vainikka K, Riekkola ML. Noncovalent poly(1-vinylpyrrolidone)-based copolymer coating for the separation of basic proteins and lipoproteins by CE. Electrophoresis 2009; 30:3939-46. [DOI: 10.1002/elps.200900395] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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27
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Yang R, Liu Y, Wang Y. Hydroxyethylcellulose-graft-poly (4-vinylpyridine) as a novel, adsorbed coating for protein separation by CE. Electrophoresis 2009; 30:2321-7. [DOI: 10.1002/elps.200900263] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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28
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Stutz H. Protein attachment onto silica surfaces - a survey of molecular fundamentals, resulting effects and novel preventive strategies in CE. Electrophoresis 2009; 30:2032-61. [DOI: 10.1002/elps.200900015] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Bernal J, Sánchez-Hernández L, Elvira C, Velasco D, Ibáñez E, Cifuentes A. Poly(N,N-dimethylacrylamide-co-4-(ethyl)-morpholine methacrylamide) copolymer as coating for CE. J Sep Sci 2009; 32:605-12. [PMID: 19160371 DOI: 10.1002/jssc.200800575] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
In this work, a new physically adsorbed coating for CE is presented. This coating is based on a poly(N,N-dimethylacrylamide-co-4-(ethyl)-morpholine methacrylamide) (DMA/MAEM) copolymer synthesized in our laboratory. It is demonstrated that the direction and magnitude of the EOF in CE can be modulated by varying the composition of the DMA/MAEM copolymer and the type and pH of the BGE. Moreover, the DMA/MAEM coating provides %RSD(n) = 5 values for migration times lower than 0.9% for the same capillary and day, whereas the %RSD(n) = 25 obtained for the interday assay was lower than 2.9%. The stability of the coating procedure is also tested between capillaries obtaining %RSD(n) = 15 values lower than 2.9%, demonstrating that this physically adsorbed copolymer gives rise to a stable and reproducible coating in CE. Finally, the usefulness of this new cationic copolymer as CE coating is demonstrated through different applications. Namely, it is demonstrated that the CE separation of basic proteins, nucleotides and organic acids is achieved in a fast and easy way by using the DMA/MAEM coated capillary. The use of fused bare silica capillaries did not allow the separation of these compounds under the same analytical conditions. These results demonstrate that this type of coating in CE provides the option of using BGEs that are useless when utilized together with bare silica capillaries making wider the application and possibilities of this analytical technique.
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Affiliation(s)
- José Bernal
- Institute of Industrial Fermentations (CSIC), Juan de la Cierva 3, Madrid, Spain
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30
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Bernal J, Rodríguez-Meizoso I, Elvira C, Ibáñez E, Cifuentes A. Fast and easy coating for capillary electrophoresis based on a physically adsorbed cationic copolymer. J Chromatogr A 2008; 1204:104-9. [DOI: 10.1016/j.chroma.2008.07.061] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2008] [Revised: 07/07/2008] [Accepted: 07/22/2008] [Indexed: 11/27/2022]
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