Pub Date : 2019-04-03DOI: 10.2174/2452271603666190403164902
Xuewei Duan, Xinyi Zhang, Lei Chen, W. Tian, Junming Gao, Fang Niu, Fang Zheng
Bentham Science has decided to withdraw this article from the journal in accordance with BSP Editorial Policies and apologizes to its readers for any inconvenience this may cause. BENTHAM SCIENCE DISCLAIMER: It is a condition of publication that manuscripts submitted to this journal have not been published and will not be simultaneously submitted or published elsewhere. Furthermore, any data, illustration, structure or table that has been published elsewhere must be reported, and copyright permission for reproduction must be obtained. Plagiarism is strictly forbidden, and by submitting the article for publication the authors agree that the publishers have the legal right to take appropriate action against the authors, if plagiarism or fabricated information is discovered. By submitting a manuscript the authors agree that the copyright of their article is transferred to the publishers if and when the article is accepted for publication.
{"title":"Withdrawn: Fingerprint Analysis of Polysaccharides from Chrysanthemum Indicum L. by HPLC Combined with Chemometrics Methods","authors":"Xuewei Duan, Xinyi Zhang, Lei Chen, W. Tian, Junming Gao, Fang Niu, Fang Zheng","doi":"10.2174/2452271603666190403164902","DOIUrl":"https://doi.org/10.2174/2452271603666190403164902","url":null,"abstract":"\u0000\u0000Bentham Science has decided to withdraw this article from the journal in accordance with BSP Editorial Policies and apologizes\u0000to its readers for any inconvenience this may cause.\u0000\u0000\u0000\u0000\u0000BENTHAM SCIENCE DISCLAIMER:\u0000\u0000\u0000\u0000\u0000It is a condition of publication that manuscripts submitted to this journal have not been published and will not be simultaneously\u0000submitted or published elsewhere. Furthermore, any data, illustration, structure or table that has been published elsewhere\u0000must be reported, and copyright permission for reproduction must be obtained. Plagiarism is strictly forbidden, and by submitting\u0000the article for publication the authors agree that the publishers have the legal right to take appropriate action against the\u0000authors, if plagiarism or fabricated information is discovered. By submitting a manuscript the authors agree that the copyright\u0000of their article is transferred to the publishers if and when the article is accepted for publication.\u0000","PeriodicalId":10768,"journal":{"name":"Current Applied Polymer Science","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79312648","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}
Pub Date : 2019-03-31DOI: 10.2174/2452271602666180910141623
S. Moulay
A number of natural and synthetic polymers were subjected to functionalization with catechol-containing modifiers, mimicking the chemical structure of Mytilus foot proteins of marine mussel, and affording materials with specific properties that are related to their adhesion ability. This review highlights the various applications of mussel-inspired polymers, worked out within the last five years, in separation processes, hydrogels making, and biomedicals. Marine mussel-inspired polymers were fashioned either by direct synthesis from catechol-containing monomers or chemical modification of existing polymers. Mostly, the catechol units attached to the polymer matrixes are 3,4-dihydroxyphenyl-L-alanine and dopamine. Michael addition and/or Schiff base reaction between catechol-containing molecules units and polyamines afford efficient separative membranes. Hydrogel-making from catecholcontaining polymers can be easily realized via oxidation with oxidants and coordination with transition metal ions.
{"title":"Mussel-inspired Polymers: Recent Trends","authors":"S. Moulay","doi":"10.2174/2452271602666180910141623","DOIUrl":"https://doi.org/10.2174/2452271602666180910141623","url":null,"abstract":"\u0000\u0000 A number of natural and synthetic polymers were subjected to functionalization\u0000with catechol-containing modifiers, mimicking the chemical structure of Mytilus foot proteins of marine\u0000mussel, and affording materials with specific properties that are related to their adhesion ability.\u0000\u0000\u0000 This review highlights the various applications of mussel-inspired polymers, worked out\u0000within the last five years, in separation processes, hydrogels making, and biomedicals.\u0000\u0000\u0000Marine mussel-inspired polymers were fashioned either by direct synthesis from\u0000catechol-containing monomers or chemical modification of existing polymers. Mostly, the catechol\u0000units attached to the polymer matrixes are 3,4-dihydroxyphenyl-L-alanine and dopamine.\u0000\u0000\u0000 Michael addition and/or Schiff base reaction between catechol-containing molecules\u0000units and polyamines afford efficient separative membranes. Hydrogel-making from catecholcontaining\u0000polymers can be easily realized via oxidation with oxidants and coordination with transition\u0000metal ions.","PeriodicalId":10768,"journal":{"name":"Current Applied Polymer Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76153686","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}
Pub Date : 2019-03-31DOI: 10.2174/2452271602666180917095629
Wenhui Zeng, Calvin O. Nyapete, Alexander H.H. Benziger, P. Jelliss, S. Buckner
There is increasing academic and industrial interest in fabricating reactive metal and metalloid nanoparticles for a number of energetics applications. Because of inherent thermodynamic instability, the greatest challenge for producing such metal nanoparticles is to kinetically stabilize their high surface areas toward reactive atmospheric constituents. Such stabilization can effectively produce nanocomposite materials that retain their high energy content or other useful properties with a respectable shelf-life. The primary focus is to summarize methods of synthesis and characterization of these energetically valuable nanoparticles. Method and Results: A popular and convenient method to passivate and protect reactive metal nanoparticles is to either graft pre-assembled polymer molecules to the nanoparticle surface or use the reactive nanoparticle surface to initiate and propagate oligomer or polymer growth. Reactive nanoparticles composed of aluminum, magnesium, zinc, titanium, or boron may be effectively passivated, capped, and protected by a variety of organic polymers. Such treatment mitigates degradation due to atmospheric reaction, while retaining the unique properties associated with the metal-polymer nanocomposites.
{"title":"Encapsulation of Reactive Nanoparticles of Aluminum, Magnesium, Zinc, Titanium, or Boron within Polymers for Energetic Applications","authors":"Wenhui Zeng, Calvin O. Nyapete, Alexander H.H. Benziger, P. Jelliss, S. Buckner","doi":"10.2174/2452271602666180917095629","DOIUrl":"https://doi.org/10.2174/2452271602666180917095629","url":null,"abstract":"\u0000\u0000 There is increasing academic and industrial interest in fabricating reactive\u0000metal and metalloid nanoparticles for a number of energetics applications.\u0000\u0000\u0000 Because of inherent thermodynamic instability, the greatest challenge for producing such\u0000metal nanoparticles is to kinetically stabilize their high surface areas toward reactive atmospheric\u0000constituents. Such stabilization can effectively produce nanocomposite materials that retain their high\u0000energy content or other useful properties with a respectable shelf-life. The primary focus is to summarize\u0000methods of synthesis and characterization of these energetically valuable nanoparticles.\u0000\u0000\u0000Method and Results: A popular and convenient method to passivate and protect reactive metal nanoparticles\u0000is to either graft pre-assembled polymer molecules to the nanoparticle surface or use the reactive\u0000nanoparticle surface to initiate and propagate oligomer or polymer growth.\u0000\u0000\u0000 Reactive nanoparticles composed of aluminum, magnesium, zinc, titanium, or boron\u0000may be effectively passivated, capped, and protected by a variety of organic polymers. Such treatment\u0000mitigates degradation due to atmospheric reaction, while retaining the unique properties associated\u0000with the metal-polymer nanocomposites.","PeriodicalId":10768,"journal":{"name":"Current Applied Polymer Science","volume":"207 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86073562","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}
Pub Date : 2019-03-31DOI: 10.2174/2452271602666181001123210
Samaresh Ghosh, M. Acharyya, S. Mandal
Hybrids, composed of silver nanoparticles (AgNPs) dispersed inside a polymer matrix thus combining properties of both the components offer antibacterial activity and several advantages. Nevertheless, the development of antibacterial hybrid material comprising both novolac type phenolic resin and AgNPs remains one of the untouched issues in human healthcare.We report herein the simple preparation of hybrid derived from functionalized novolac resin and AgNPs. The hybrid was tested for antibacterial activity towards Gram-positive and Gramnegative bacteria.Preparation and characterization of functionalized novolac resin and hybrid were achieved. Gram-positive bacteria (Staphylococcus aureus MTCC 3160, Staphylococcus epidermidis NCIM2493, Bacillus subtilis) and Gram-negative bacteria (Pseudomonas aeruginosa ATCC27853, Escherichia coli) were used to test the bactericidal efficiency of hybrid. The antibacterial effectiveness of hybrid was determined in terms of the minimum inhibitory concentration (MIC). In addition, treatment with hybrid caused cytoplasmic contents leakage evidencing membrane damage.The hybrid developed thus could provide opportunities to fabricate a wide range of antibacterial functional materials for different purposes in human health associated sectors.
{"title":"Novolac-based Polymer-silver Nanoparticles Hybrid: Synthesis, Characterization and Antibacterial Evaluation","authors":"Samaresh Ghosh, M. Acharyya, S. Mandal","doi":"10.2174/2452271602666181001123210","DOIUrl":"https://doi.org/10.2174/2452271602666181001123210","url":null,"abstract":"Hybrids, composed of silver nanoparticles (AgNPs) dispersed inside a polymer matrix thus combining properties of both the components offer antibacterial activity and several advantages. Nevertheless, the development of antibacterial hybrid material comprising both novolac type phenolic resin and AgNPs remains one of the untouched issues in human healthcare.We report herein the simple preparation of hybrid derived from functionalized novolac resin and AgNPs. The hybrid was tested for antibacterial activity towards Gram-positive and Gramnegative bacteria.Preparation and characterization of functionalized novolac resin and hybrid were achieved. Gram-positive bacteria (Staphylococcus aureus MTCC 3160, Staphylococcus epidermidis NCIM2493, Bacillus subtilis) and Gram-negative bacteria (Pseudomonas aeruginosa ATCC27853, Escherichia coli) were used to test the bactericidal efficiency of hybrid. The antibacterial effectiveness of hybrid was determined in terms of the minimum inhibitory concentration (MIC). In addition, treatment with hybrid caused cytoplasmic contents leakage evidencing membrane damage.The hybrid developed thus could provide opportunities to fabricate a wide range of antibacterial functional materials for different purposes in human health associated sectors.","PeriodicalId":10768,"journal":{"name":"Current Applied Polymer Science","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90600665","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}
Pub Date : 2019-03-31DOI: 10.2174/2452271602666181029125739
G. Sharifishourabi, X. Chen, T. Nguyen, D. Rodrigue
Today, polyurethane foams can be found in various commercial products such as bedding, home furniture, automotive interiors and even construction materials. From a chemical point of view, polyurethane foams are made from a chemical reaction between a polyol (molecules with more than one hydroxyl group) and a diisocyanate in the presence of a blowing agent.Because of their highly stable bonds, polyurethane foams are considered as nondegradable leading to some environmental impact. To address this concern different bio-based fillers have been used to create "greener" polyurethane materials. This review presents an overview of different bio-based fillers and containing natural polyols for polyurethane foams formulation with respect to their natural properties, sizes, geometries and contents.A wide range of bio-based fillers derived from wood and non-wood sources are summarized based on their physico-mechanical properties. Then, possible applications are presented and future trends are discussed for the research and development of these complex (multiphase systems) materials (polymer composite foams).Beside traditional polyurethane foams applications including automotive, building, home furniture and package, bio-based filler addition could bring new feature and widen their applications such as shape memory and medication, as well as oil absorbent.
{"title":"Polyurethane Foams Reinforced with Biobased Materials: Properties and Applications","authors":"G. Sharifishourabi, X. Chen, T. Nguyen, D. Rodrigue","doi":"10.2174/2452271602666181029125739","DOIUrl":"https://doi.org/10.2174/2452271602666181029125739","url":null,"abstract":"Today, polyurethane foams can be found in various commercial products such as bedding, home furniture, automotive interiors and even construction materials. From a chemical point of view, polyurethane foams are made from a chemical reaction between a polyol (molecules with more than one hydroxyl group) and a diisocyanate in the presence of a blowing agent.Because of their highly stable bonds, polyurethane foams are considered as nondegradable leading to some environmental impact. To address this concern different bio-based fillers have been used to create \"greener\" polyurethane materials. This review presents an overview of different bio-based fillers and containing natural polyols for polyurethane foams formulation with respect to their natural properties, sizes, geometries and contents.A wide range of bio-based fillers derived from wood and non-wood sources are summarized based on their physico-mechanical properties. Then, possible applications are presented and future trends are discussed for the research and development of these complex (multiphase systems) materials (polymer composite foams).Beside traditional polyurethane foams applications including automotive, building, home furniture and package, bio-based filler addition could bring new feature and widen their applications such as shape memory and medication, as well as oil absorbent.","PeriodicalId":10768,"journal":{"name":"Current Applied Polymer Science","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90844829","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}
Pub Date : 2019-03-31DOI: 10.2174/2452271602666181031093243
Ravindra P. Birajdar, S. Patil, Vijaykumar V. Alange, R. V. Kulkarni
The study aimed to prepare electrically-triggered transdermal drug delivery systems (ETDS) using electrically responsive polyacrylamide-graft-gaur gum (PAAm-g-GaG) copolymer. The PAAm-g-GaG copolymer was synthesized by adopting free radical polymerization grafting method. This PAAm-g-GaG copolymer hydrogel acts as a drug reservoir and blend films of Guar Gum (GaG) and Polyvinyl Alcohol (PVA) were included as Rate Controlling Membranes (RCM) in the system. The PAAm-g-GaG copolymer was characterized by FTIR, neutralization equivalent values, thermogravimetric analysis and elemental analysis. On the basis of results obtained, it is implicit that the drug permeation decreased with an increase in the concentration of glutaraldehyde and RCM thickness; while drug permeation rate was increased with increasing applied electric current strength from 2 to 8 mA. A two fold increase in flux values was observed with the application of DC electric current. An increase in drug permeation was witnessed under on condition of electric stimulus and permeation was decreased when electric stimulus was "off". The skin histopathology study confirmed the changes in skin structure when electrical stimulus was applied. The electrically-sensitive PAAm-g-GaG copolymer is a useful biomaterial for transdermal drug delivery application.
{"title":"Electrically Triggered Transdermal Drug Delivery Utilizing Poly(Acrylamide)-graft-Guar Gum: Synthesis, Characterization and Formulation Development","authors":"Ravindra P. Birajdar, S. Patil, Vijaykumar V. Alange, R. V. Kulkarni","doi":"10.2174/2452271602666181031093243","DOIUrl":"https://doi.org/10.2174/2452271602666181031093243","url":null,"abstract":"\u0000\u0000The study aimed to prepare electrically-triggered transdermal drug delivery\u0000systems (ETDS) using electrically responsive polyacrylamide-graft-gaur gum (PAAm-g-GaG) copolymer.\u0000\u0000\u0000The PAAm-g-GaG copolymer was synthesized by adopting free radical polymerization\u0000grafting method. This PAAm-g-GaG copolymer hydrogel acts as a drug reservoir and blend films of\u0000Guar Gum (GaG) and Polyvinyl Alcohol (PVA) were included as Rate Controlling Membranes\u0000(RCM) in the system. The PAAm-g-GaG copolymer was characterized by FTIR, neutralization\u0000equivalent values, thermogravimetric analysis and elemental analysis.\u0000\u0000\u0000On the basis of results obtained, it is implicit that the drug permeation decreased with an increase\u0000in the concentration of glutaraldehyde and RCM thickness; while drug permeation rate was\u0000increased with increasing applied electric current strength from 2 to 8 mA. A two fold increase in\u0000flux values was observed with the application of DC electric current. An increase in drug permeation\u0000was witnessed under on condition of electric stimulus and permeation was decreased when electric\u0000stimulus was \"off\". The skin histopathology study confirmed the changes in skin structure when\u0000electrical stimulus was applied.\u0000\u0000\u0000 The electrically-sensitive PAAm-g-GaG copolymer is a useful biomaterial for transdermal\u0000drug delivery application.","PeriodicalId":10768,"journal":{"name":"Current Applied Polymer Science","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89479869","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}
Pub Date : 2018-10-02DOI: 10.2174/2452271602666180727112518
R. McKee, M. Harris, J. Hadley, Jingzhe Zhang, G. Lewis
{"title":"Comparative Influence of Two Compositional Modifications on Maximum Exotherm Temperature and Other Properties of an Antibiotic-Loaded PMMA Bone Cement","authors":"R. McKee, M. Harris, J. Hadley, Jingzhe Zhang, G. Lewis","doi":"10.2174/2452271602666180727112518","DOIUrl":"https://doi.org/10.2174/2452271602666180727112518","url":null,"abstract":"","PeriodicalId":10768,"journal":{"name":"Current Applied Polymer Science","volume":"202 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91551744","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}
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