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Kumar D, Pandey J, Raj V, Kumar P. A Review on the Modification of Polysaccharide Through Graft Copolymerization for Various Potential Applications. THE OPEN MEDICINAL CHEMISTRY JOURNAL 2017; 11:109-126. [PMID: 29151987 PMCID: PMC5676014 DOI: 10.2174/1874104501711010109] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 08/20/2017] [Accepted: 08/23/2017] [Indexed: 12/03/2022]
Abstract
INTRODUCTION Graft copolymerization is one of the most promising technique uses to modify the properties of naturally available polymers with a minimum loss in their native characteristics. METHODS AND MATERIALS Graft copolymerization is a very significant technique to add hybrid properties in backbone of polymers. The grafting generally initiated through the formation of free radical centers on the polymer backbone as well as monomer. RESULTS Grafted polysaccharides have various applications in different important scientific areas such as drug delivery, pharmaceutical field, plastic industry, waste water treatment, tannery effluent treatment, textile industry, agriculture area, etc. all of this fascinated us to summarize the major research articles over the last two decades outlining different methods of grafting, surface modification, graft copolymerization of synthetic and natural polymers. CONCLUSION Various redox initiator systems viz. Ceric ammonium nitrate, per sulfate, Irradiation, FAS-H2O2etc. is also explored for grafting of vinyl through conventional and non-conventional techniques.
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Affiliation(s)
- Deepak Kumar
- Department of Applied Chemistry, MJP Rohilkhand University, Bareilly – 243006(U.P.), India
- Department of Applied Chemistry, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Rae Bareli Road, Lucknow 226025, India
| | - Jyoti Pandey
- Department of Applied Chemistry, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Rae Bareli Road, Lucknow 226025, India
| | - Vinit Raj
- Department of Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Rae Bareli Road, Lucknow 226025, India
| | - Pramendra Kumar
- Department of Applied Chemistry, MJP Rohilkhand University, Bareilly – 243006(U.P.), India
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202
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Déon S, Deher J, Lam B, Crini N, Crini G, Fievet P. Remediation of Solutions Containing Oxyanions of Selenium by Ultrafiltration: Study of Rejection Performances with and without Chitosan Addition. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02615] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sébastien Déon
- Institut
UTINAM (UMR CNRS 6213), Université de Bourgogne Franche-Comté, 16 route de Gray, Besançon, 25030 CEDEX, France
| | - Julien Deher
- Institut
UTINAM (UMR CNRS 6213), Université de Bourgogne Franche-Comté, 16 route de Gray, Besançon, 25030 CEDEX, France
- Laboratoire
Chrono-Environnement (UMR CNRS 6249), Université de Bourgogne Franche-Comté, 16 route de Gray, Besançon, 25030 CEDEX, France
| | - Boukary Lam
- Institut
UTINAM (UMR CNRS 6213), Université de Bourgogne Franche-Comté, 16 route de Gray, Besançon, 25030 CEDEX, France
| | - Nadia Crini
- Laboratoire
Chrono-Environnement (UMR CNRS 6249), Université de Bourgogne Franche-Comté, 16 route de Gray, Besançon, 25030 CEDEX, France
| | - Gregorio Crini
- Laboratoire
Chrono-Environnement (UMR CNRS 6249), Université de Bourgogne Franche-Comté, 16 route de Gray, Besançon, 25030 CEDEX, France
| | - Patrick Fievet
- Institut
UTINAM (UMR CNRS 6213), Université de Bourgogne Franche-Comté, 16 route de Gray, Besançon, 25030 CEDEX, France
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203
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Ashour AE, Badran MM, Kumar A, Rishi AK, Yassin AE. Di-Block PLCL and Tri-Block PLCLG Matrix Polymeric Nanoparticles Enhanced the Anticancer Activity of Loaded 5-Fluorouracil. IEEE Trans Nanobioscience 2017; 15:739-747. [PMID: 28029617 DOI: 10.1109/tnb.2016.2612340] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In the current study, 5-FU-loaded nanoparticles (NPs) were prepared using polylactic-co-glycolic acid (PLGA), polycaprolactone (PCL), di-block poly lactide-co-caprolactone (PLCL) and tri-block poly L-lactide-co-caprolactone-co-glycolide (PLCLG). The influence of these polymers on the particle sizes, morphology, drug loading, and in vitro drug release was investigated. The anticancer activity was assessed utilizing MTT assay in three human cancer cell lines of different tissue origin; brain (Daoy), liver (HepG2), and colorectal (HT29) using suitable negative and positive controls. The prepared NPs showed a uniform spherical shape with an average size range of 193.5± 6.3 to 303.5± 3.3 nm with negative zeta potential. The entrapment efficiency achieved with F4-F6 (block copolymer NPs) was 78-79% and significantly higher compared with F1 PLGA (31%) and F2; PCL (37%). An initial rapid 5-FU release followed by a slow release ranging from 35% to 81% after 72 h was observed. All the prepared NPs formulations showed enhancement in the cytotoxicity of 5-FU towards all the three cancer cell lines. Generally, block copolymer NPs (F4-F6) showed higher % cell death over PLGA (F1) and PCL (F2) NPs after 48 and 72 h incubation in the case of HepG2 and HT-29. The incorporation of PEG with the tri-block (F6) caused a significant increase in the cytotoxicity of NPs in all of the three cancer cell lines. Block copolymer-based NPs can be considered as promising carriers for enhancing the efficacy of 5-FU in cancer therapy.
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204
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Polycaprolactone nanocomposite reinforced by bioresource starch-based nanoparticles. Int J Biol Macromol 2017; 102:1304-1311. [DOI: 10.1016/j.ijbiomac.2017.05.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 04/26/2017] [Accepted: 05/05/2017] [Indexed: 11/18/2022]
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205
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206
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Ananda AP, Manukumar HM, Umesha S, Soumya G, Priyanka D, Mohan Kumar AS, Krishnamurthy NB, Savitha KR. A Relook at Food Packaging for Cost Effective by Incorporation of Novel Technologies. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/s41783-017-0011-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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207
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Su SK, Gu JH, Lee HT, Wu CL, Hwang JJ, Suen MC. Synthesis and properties of novel biodegradable polyurethanes containing fluorinated aliphatic side chains. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1301-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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208
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Kormin S, Kormin F, Beg MDH, Piah MBM. Physical and mechanical properties of LDPE incorporated with different starch sources. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1757-899x/226/1/012157] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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209
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Affiliation(s)
- Hailing Liu
- Department of Chemical and Biomedical Engineering; Florida State University; Tallahassee Florida 32310
| | - Hoyong Chung
- Department of Chemical and Biomedical Engineering; Florida State University; Tallahassee Florida 32310
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210
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Laycock B, Nikolić M, Colwell JM, Gauthier E, Halley P, Bottle S, George G. Lifetime prediction of biodegradable polymers. Prog Polym Sci 2017. [DOI: 10.1016/j.progpolymsci.2017.02.004] [Citation(s) in RCA: 301] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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211
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Laranjeira M, Domingues RMA, Costa-Almeida R, Reis RL, Gomes ME. 3D Mimicry of Native-Tissue-Fiber Architecture Guides Tendon-Derived Cells and Adipose Stem Cells into Artificial Tendon Constructs. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1700689. [PMID: 28631375 DOI: 10.1002/smll.201700689] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 04/12/2017] [Indexed: 05/18/2023]
Abstract
Tendon and ligament (T/L) function is intrinsically related with their unique hierarchically and anisotropically organized extracellular matrix. Their natural healing capacity is, however, limited. Here, continuous and aligned electrospun nanofiber threads (CANT) based on synthetic/natural polymer blends mechanically reinforced with cellulose nanocrystals are produced to replicate the nanoscale collagen fibrils grouped into microscale collagen fibers that compose the native T/L. CANT are then incrementally assembled into 3D hierarchical scaffolds, resulting in woven constructions, which simultaneously mimic T/L nano-to-macro architecture, nanotopography, and nonlinear biomechanical behavior. Biological performance is assessed using human-tendon-derived cells (hTDCs) and human adipose stem cells (hASCs). Scaffolds nanotopography and microstructure induce a high cytoskeleton elongation and anisotropic organization typical of tendon tissues. Moreover, the expression of tendon-related markers (Collagen types I and III, Tenascin-C, and Scleraxis) by both cell types, and the similarities observed on their expression patterns over time suggest that the developed scaffolds not only prevent the phenotypic drift of hTDCs, but also trigger tenogenic differentiation of hASCs. Overall, these results demonstrate a feasible approach for the scalable production of 3D hierarchical scaffolds that exhibit key structural and biomechanical properties, which can be advantageously explored in acellular and cellular T/L TE strategies.
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Affiliation(s)
- Mariana Laranjeira
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's-PT Associate Laboratory, Braga, Portugal
| | - Rui M A Domingues
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's-PT Associate Laboratory, Braga, Portugal
| | - Raquel Costa-Almeida
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's-PT Associate Laboratory, Braga, Portugal
| | - Rui L Reis
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's-PT Associate Laboratory, Braga, Portugal
| | - Manuela E Gomes
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's-PT Associate Laboratory, Braga, Portugal
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Vilarinho F, Sanches Silva A, Vaz MF, Farinha JP. Nanocellulose in green food packaging. Crit Rev Food Sci Nutr 2017; 58:1526-1537. [PMID: 28125279 DOI: 10.1080/10408398.2016.1270254] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The development of packaging materials with new functionalities and lower environmental impact is now an urgent need of our society. On one hand, the shelf-life extension of packaged products can be an answer to the exponential increase of worldwide demand for food. On the other hand, uncertainty of crude oil prices and reserves has imposed the necessity to find raw materials to replace oil-derived polymers. Additionally, consumers' awareness toward environmental issues increasingly pushes industries to look with renewed interest to "green" solutions. In response to these issues, numerous polymers have been exploited to develop biodegradable food packaging materials. Although the use of biopolymers has been limited due to their poor mechanical and barrier properties, these can be enhanced by adding reinforcing nanosized components to form nanocomposites. Cellulose is probably the most used and well-known renewable and sustainable raw material. The mechanical properties, reinforcing capabilities, abundance, low density, and biodegradability of nanosized cellulose make it an ideal candidate for polymer nanocomposites processing. Here we review the potential applications of cellulose based nanocomposites in food packaging materials, highlighting the several types of biopolymers with nanocellulose fillers that have been used to form bio-nanocomposite materials. The trends in nanocellulose packaging applications are also addressed.
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Affiliation(s)
- Fernanda Vilarinho
- a Department of Food and Nutrition , National Institute of Health Dr. Ricardo Jorge, I.P. , Lisboa , Portugal
| | - Ana Sanches Silva
- a Department of Food and Nutrition , National Institute of Health Dr. Ricardo Jorge, I.P. , Lisboa , Portugal.,b Centro de Estudos de Ciência Animal (CECA) , Universidade do Porto , Porto , Portugal
| | - M Fátima Vaz
- c IDMEC, Instituto Superior Técnico, Departamento de Engenharia Mecânica , Universidade de Lisboa , Lisboa , Portugal
| | - José Paulo Farinha
- d Centro de Química-Física Molecular and Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa , Lisboa , Portugal
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213
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Effect of Plasticizer Type on Tensile Property and In Vitro Indomethacin Release of Thin Films Based on Low-Methoxyl Pectin. Polymers (Basel) 2017; 9:polym9070289. [PMID: 30970971 PMCID: PMC6432188 DOI: 10.3390/polym9070289] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 07/10/2017] [Accepted: 07/19/2017] [Indexed: 12/05/2022] Open
Abstract
This study developed the interests of low-methoxyl pectin (LMP) together with plasticizers for the preparation of elastic thin films. The effect of different plasticizer types (glycerol: Gly; sorbitol: Sor; propylene glycol: PG; and polyethylene glycol 300: PEG 300) and concentrations (20–40% w/w) on mechanical and thermal properties of LMP films as well as on in vitro release of indomethacin were evaluated. Without any plasticizer, a brittle LMP film with low tensile strength and % elongation at break was obtained. Addition of plasticizers from 20% to 40% caused reduction in the tensile strength and Young’s modulus values, whereas percent elongation was increased. Forty percent Gly-plasticized and PG-plasticized films were selected to deliver indomethacin in comparison with non-plasticized film. No significant difference in indomethacin release profiles was displayed between the films. The analysis of indomethacin release model indicated that more than one drug release mechanism from the film formulation was involved and possibly the combination of both diffusion and erosion. Even though indomethacin incorporated in non-plasticized film showed similar release profile, Gly or PG should be added to enhanced film flexibility and decrease film brittleness.
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214
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Latex nanoparticles surface modified via the layer-by-layer technique for two drugs loading. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.04.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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215
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Correa AC, Carmona VB, Simão JA, Capparelli Mattoso LH, Marconcini JM. Biodegradable blends of urea plasticized thermoplastic starch (UTPS) and poly(ε-caprolactone) (PCL): Morphological, rheological, thermal and mechanical properties. Carbohydr Polym 2017; 167:177-184. [DOI: 10.1016/j.carbpol.2017.03.051] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 03/14/2017] [Accepted: 03/14/2017] [Indexed: 11/30/2022]
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216
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La nanotecnología ofrece un enfoque terapéutico prometedor para el tratamiento de la hipertensión. HIPERTENSION Y RIESGO VASCULAR 2017; 34:120-127. [DOI: 10.1016/j.hipert.2016.11.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 11/03/2016] [Accepted: 11/04/2016] [Indexed: 02/06/2023]
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217
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Photo-regulated conductivity of polycaprolactone honeycomb-patterned porous films containing azobenzene-functionalized reduced graphene oxide. Macromol Res 2017. [DOI: 10.1007/s13233-017-5086-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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218
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Farooq U, Khan S, Nawaz S, Ranjha NM, Haider MS, Khan MM, Dar E, Nawaz A. Enhanced gastric retention and drug release via development of novel floating microspheres based on Eudragit E100 and polycaprolactone: synthesis and in vitro evaluation. Des Monomers Polym 2017; 20:419-433. [PMID: 29491813 PMCID: PMC5784876 DOI: 10.1080/15685551.2017.1326702] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 04/30/2017] [Indexed: 11/17/2022] Open
Abstract
Eudragit E 100 and polycaprolactone (PCL) floating microspheres for enhanced gastric retention and drug release were successfully prepared by oil in water solvent evaporation method. Metronidazole benzoate, an anti-protozoal drug, was used as a model drug. Polyvinyl alcohol was used as an emulsifier. The prepared microspheres were observed for % recovery, % degree of hydration, % water uptake, % drug loading, % buoyancy and % drug release. The physico-chemical properties of the microspheres were studied by calculating encapsulation efficiency of microspheres and drug release kinetics. Drug release characteristics of microspheres were studied in simulated gastric fluid and simulated intestinal fluid i.e., at pH 1.2 and 7.4 respectively. Fourier transform infrared spectroscopy was used to reveal the chemical interaction between drug and polymers. Scanning electron microscopy was conducted to study the morphology of the synthesized microspheres.
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Affiliation(s)
- Umar Farooq
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Samiullah Khan
- Faculty of Pharmacy and Alternative Medicine, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Shahid Nawaz
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | | | | | | | - Eshwa Dar
- Islam College of Pharmacy, Sialkot, Pakistan
| | - Ahmad Nawaz
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad, Pakistan
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219
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Nasiri F, Mansoori Y, Rostamzadeh N. Novel polyesters and polyester/Cloisite 30B nanocomposites based on a new rhodanine-based monomer. POLYMER SCIENCE SERIES B 2017. [DOI: 10.1134/s1560090417030137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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220
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Lambert S, Scherer C, Wagner M. Ecotoxicity testing of microplastics: Considering the heterogeneity of physicochemical properties. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2017; 13:470-475. [PMID: 28440923 DOI: 10.1002/ieam.1901] [Citation(s) in RCA: 142] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 02/07/2017] [Accepted: 02/07/2017] [Indexed: 05/06/2023]
Abstract
"Microplastic" is an umbrella term that covers many particle shapes, sizes, and polymer types, and as such the physical and chemical properties of environmental microplastics will differ from the primary microbeads commonly used for ecotoxicity testing. In the present article, we discuss the physical and chemical properties of microplastics that are potentially relevant to their ecotoxicity, including particle size, particle shape, crystallinity, surface chemistry, and polymer and additive composition. Overall, there is a need for a structured approach to the testing of different properties to identify which are the most relevant drivers of microplastic toxicity. In addition, the properties discussed will be influenced by and change depending on environmental conditions and degradation pathways. Future challenges include new technologies that will enter the plastic production cycle and the impact of these changes on the composition of environmental microplastics. Integr Environ Assess Manag 2017;13:470-475. © 2017 SETAC.
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Affiliation(s)
- Scott Lambert
- Department Aquatic Ecotoxicology, Goethe University Frankfurt am Main, Frankfurt, Germany
| | - Christian Scherer
- Department Aquatic Ecotoxicology, Goethe University Frankfurt am Main, Frankfurt, Germany
| | - Martin Wagner
- Department Aquatic Ecotoxicology, Goethe University Frankfurt am Main, Frankfurt, Germany
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221
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Mechanical properties and state of miscibility in poly(racD,L-lactide-co-glycolide)/(L-lactide-co-ε-caprolactone) blends. J Mech Behav Biomed Mater 2017; 71:372-382. [PMID: 28411547 DOI: 10.1016/j.jmbbm.2017.04.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 04/03/2017] [Accepted: 04/04/2017] [Indexed: 11/20/2022]
Abstract
Polymers based on lactic acid (PLA) are a very promising category of biopolymers. As they are multi-stimuli responsive, can, in many ways, positively interact with the host, stimulating the innate reparative machinery of the human body. Since biopolymers for medical applications are subject to restrictive regulations, blending stands out as an effective method for obtaining tailored properties within a reduced time to market if compared to synthesis. Hence, in this study a set of PDLGA/PLCL blends was obtained by means of thermoplastic techniques and then further characterized. Evaluation techniques include GPC, NMR, DSC, tensile testing and SEM. Although mixtures proved to be immiscible, a full range of tensile properties was achieved. Observation of the surfaces of fracture provided visual evidence of the deformation mechanisms that occurred during the tensile tests which in the end led to failure. Interpretation of the thermal events based on molecular characterization parameters revealed phase separation, crystallization and plasticisation mechanisms that are relevant to any potential applications based on mechanical performance and shape memory behaviour.
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222
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Zhu J, Zhang S, Zhang B, Qiao D, Pu H, Liu S, Li L. Structural features and thermal property of propionylated starches with different amylose/amylopectin ratio. Int J Biol Macromol 2017; 97:123-130. [DOI: 10.1016/j.ijbiomac.2017.01.033] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 01/03/2017] [Accepted: 01/07/2017] [Indexed: 11/28/2022]
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223
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Karamanlioglu M, Preziosi R, Robson GD. Abiotic and biotic environmental degradation of the bioplastic polymer poly(lactic acid): A review. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2017.01.009] [Citation(s) in RCA: 249] [Impact Index Per Article: 35.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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224
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Fathi M, Barar J. Perspective highlights on biodegradable polymeric nanosystems for targeted therapy of solid tumors. ACTA ACUST UNITED AC 2017; 7:49-57. [PMID: 28546953 PMCID: PMC5439389 DOI: 10.15171/bi.2017.07] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 02/06/2017] [Indexed: 12/18/2022]
Abstract
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Introduction: Polymeric nanoparticles (NPs) formulated using biodegradable polymers offer great potential for development of de novo drug delivery systems (DDSs) capable of delivering a wide range of bioactive agents. They can be engineered as advanced multifunctional nanosystems (NSs) for simultaneous imaging and therapy known as theranostics or diapeutics.
Methods: A brief prospective is provided on biomedical importance and applications of biodegradable polymeric NSs through reviewing the recently published literature.
Results: Biodegradable polymeric NPs present unique characteristics, including: nanoscaled structures, high encapsulation capacity, biocompatibility with non-thrombogenic and non-immunogenic properties, and controlled-/sustained-release profile for lipophilic and hydrophilic drugs. Once administered in vivo, all classes of biodegradable polymers (i.e., synthetic, semi-synthetic, and natural polymers) are subjected to enzymatic degradation; and hence, transformation into byproducts that can be simply eliminated from the human body. Natural and semi-synthetic polymers have been shown to be highly stable, much safer, and offer a non-/less-toxic means for specific delivery of cargo drugs in comparison with synthetic polymers. Despite being biocompatible and enzymatically-degradable, there are some drawbacks associated with these polymers such as batch to batch variation, high production cost, structural complexity, lower bioadhesive potential, uncontrolled rate of hydration, and possibility of microbial spoilage. These pitfalls have bolded the importance of synthetic counterparts despite their somewhat toxicity.
Conclusion: Taken all, to minimize the inadvertent effects of these polymers and to engineer much safer NSs, it is necessary to devise biopolymers with desirable chemical and biochemical modification(s) and polyelectrolyte complex formation to improve their drug delivery capacity in vivo.
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Affiliation(s)
- Marziyeh Fathi
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jaleh Barar
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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225
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Esmaeilzadeh J, Hesaraki S, Hadavi SMM, Esfandeh M, Ebrahimzadeh MH. Microstructure and mechanical properties of biodegradable poly (D/L) lactic acid/polycaprolactone blends processed from the solvent-evaporation technique. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:807-819. [DOI: 10.1016/j.msec.2016.10.070] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 09/21/2016] [Accepted: 10/25/2016] [Indexed: 10/20/2022]
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227
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Effect of Cold Drawing on Mechanical Properties of Biodegradable Fibers. J Appl Biomater Funct Mater 2017; 15:e70-e76. [DOI: 10.5301/jabfm.5000328] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2016] [Indexed: 11/20/2022] Open
Abstract
Purpose Biodegradable polymers are currently gaining importance in several fields, because they allow mitigation of the impact on the environment related to disposal of traditional, nonbiodegradable polymers, as well as reducing the utilization of oil-based sources (when they also come from renewable resources). Fibers made of biodegradable polymers are of particular interest, though, it is not easy to obtain polymer fibers with suitable mechanical properties and to tailor these to the specific application. The main ways to tailor the mechanical properties of a given biodegradable polymer fiber are based on crystallinity and orientation control. However, crystallinity can only marginally be modified during processing, while orientation can be controlled, either during hot drawing or cold stretching. In this paper, a systematic investigation of the influence of cold stretching on the mechanical and thermomechanical properties of fibers prepared from different biodegradable polymer systems was carried out. Methods Rheological and thermal characterization helped in interpreting the orientation mechanisms, also on the basis of the molecular structure of the polymer systems. Results and conclusions It was found that cold drawing strongly improved the elastic modulus, tensile strength and thermomechanical resistance of the fibers, in comparison with hot-spun fibers. The elastic modulus showed higher increment rates in the biodegradable systems upon increasing the draw ratio.
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228
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Li S, Dai S, Shah NP. Sulfonation and Antioxidative Evaluation of Polysaccharides from Pleurotus Mushroom and Streptococcus thermophilus Bacteria: A Review. Compr Rev Food Sci Food Saf 2017; 16:282-294. [PMID: 33371533 DOI: 10.1111/1541-4337.12252] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 12/06/2016] [Accepted: 12/07/2016] [Indexed: 11/29/2022]
Abstract
Human beings are equipped with antioxidant defense systems to neutralize free radicals as free radicals could damage macromolecules, subsequently resulting in serious diseases. Researchers have been attracted to search for potential natural antioxidants to reduce oxidative damage. Pleurotus and Streptococcus thermophilus have been chosen as sources of sustainable bioactive compounds that have been consumed for thousands of years. Polysaccharides are important bioactive components produced by Pleurotus mushrooms and Streptococcus thermophilus bacteria. Additionally, there is a continued interest in sulfonation of crude polysaccharides from both sources, since sulfonation has been found to improve or create new bioactive properties in polysaccharides. Both crude and sulfated polysaccharides with good antioxidant capacities have great potential for the further development as commercial products. This review focuses on characterization, sulfonation methods, and antioxidant capacity evaluations of polysaccharides from Pleurotus and S. thermophilus. Common antioxidant capacity assays, including the mechanisms underlying each assay, and various experimental procedures are also discussed.
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Affiliation(s)
- Siqian Li
- Food and Nutritional Science, School of Biological Sciences, The Univ. of Hong Kong, Pokfulam Rd., Hong Kong
| | - Shuhong Dai
- Food and Nutritional Science, School of Biological Sciences, The Univ. of Hong Kong, Pokfulam Rd., Hong Kong
| | - Nagendra Prasad Shah
- Food and Nutritional Science, School of Biological Sciences, The Univ. of Hong Kong, Pokfulam Rd., Hong Kong
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229
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Rolph MS, Pitto-Barry A, O'Reilly RK. The hydrolytic behavior of N,N′-(dimethylamino)ethyl acrylate-functionalized polymeric stars. Polym Chem 2017. [DOI: 10.1039/c7py00219j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Well-definedN,N′-(dimethylamino)ethyl acrylate (DMAEA) functionalized polymeric stars have been synthesizedviaan arm-first approach.
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230
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231
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Lee LT, Yang CT. Investigations on Green Blends Comprising Biodegradable Polymer and Ionic Liquid. Polymers (Basel) 2016; 8:E444. [PMID: 30974721 PMCID: PMC6432002 DOI: 10.3390/polym8120444] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 12/13/2016] [Accepted: 12/14/2016] [Indexed: 12/02/2022] Open
Abstract
The green blends of an ionic liquid, 1-ethyl-3-propylimidazolium bis(trifluoromethanesulfonyl)imide {[EPrI][TFSI]}, and a biodegradable polymer, poly(3-hydroxybutyrate) (PHB), were investigated in this study. The influence of an ionic liquid on the crystallization behaviors of a biodegradable polymer was explored. In the blends, the presence of [EPrI][TFSI] decreased the Tg and Tm of PHB. Incorporating [EPrI][TFSI] in the blends reduced the degree of crystallinity of PHB, inferring that the [EPrI][TFSI] weakened the crystallization of PHB. It further showed retarded isothermal and non-isothermal crystallization for PHB with the presence of [EPrI][TFSI]. The smaller K and 1/t0.5 estimated by the Avrami equation for the blends indicated that [EPrI][TFSI] weakened the isothermal crystallization of PHB with exhibiting the slower crystallization rate. The present study also discussed non-isothermal crystallization of the blends. We found that the Mo model, which is generally used to discuss the non-isothermal crystallization, adequately described the non-isothermal behaviors of the [EPrI][TFSI]/PHB blends. By increasing the [EPrI][TFSI] content, the rate-related parameter F(T) systematically increased, inferring a decreased crystallization rate of PHB with the addition of [EPrI][TFSI] in the blends. The FTIR results suggested an ion⁻dipole interaction between [EPrI][TFSI] and PHB. This proposes the occurrence of possible complexation between [EPrI][TFSI] and PHB.
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Affiliation(s)
- Li-Ting Lee
- Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan.
| | - Chun-Ting Yang
- Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan.
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232
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Brannigan RP, Dove AP. Synthesis, properties and biomedical applications of hydrolytically degradable materials based on aliphatic polyesters and polycarbonates. Biomater Sci 2016; 5:9-21. [PMID: 27840864 DOI: 10.1039/c6bm00584e] [Citation(s) in RCA: 197] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Polyester-based polymers represent excellent candidates in synthetic biodegradable and bioabsorbable materials for medical applications owing to their tailorable properties. The use of synthetic polyesters as biomaterials offers a unique control of morphology, mechanical properties and degradation profile through monomer selection, polymer composition (i.e. copolymer vs. homopolymer, stereocomplexation etc.) and molecular weight. Within this review, the synthetic routes, degradation modes and application of aliphatic polyester- and polycarbonate-based biomaterials are discussed.
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Affiliation(s)
| | - Andrew P Dove
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK.
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233
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Wu CL, Tsou CY, Tseng YC, Lee HT, Suen MC, Gu JH, Tsou CH, Chiu SH. Preparation and characterization of biodegradable polyurethanes composites filled with silver nanoparticles-decorated graphene. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1138-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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234
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Stratton S, Shelke NB, Hoshino K, Rudraiah S, Kumbar SG. Bioactive polymeric scaffolds for tissue engineering. Bioact Mater 2016; 1:93-108. [PMID: 28653043 PMCID: PMC5482547 DOI: 10.1016/j.bioactmat.2016.11.001] [Citation(s) in RCA: 230] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 10/27/2016] [Accepted: 11/08/2016] [Indexed: 12/12/2022] Open
Abstract
A variety of engineered scaffolds have been created for tissue engineering using polymers, ceramics and their composites. Biomimicry has been adopted for majority of the three-dimensional (3D) scaffold design both in terms of physicochemical properties, as well as bioactivity for superior tissue regeneration. Scaffolds fabricated via salt leaching, particle sintering, hydrogels and lithography have been successful in promoting cell growth in vitro and tissue regeneration in vivo. Scaffold systems derived from decellularization of whole organs or tissues has been popular due to their assured biocompatibility and bioactivity. Traditional scaffold fabrication techniques often failed to create intricate structures with greater resolution, not reproducible and involved multiple steps. The 3D printing technology overcome several limitations of the traditional techniques and made it easier to adopt several thermoplastics and hydrogels to create micro-nanostructured scaffolds and devices for tissue engineering and drug delivery. This review highlights scaffold fabrication methodologies with a focus on optimizing scaffold performance through the matrix pores, bioactivity and degradation rate to enable tissue regeneration. Review highlights few examples of bioactive scaffold mediated nerve, muscle, tendon/ligament and bone regeneration. Regardless of the efforts required for optimization, a shift in 3D scaffold uses from the laboratory into everyday life is expected in the near future as some of the methods discussed in this review become more streamlined.
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Affiliation(s)
- Scott Stratton
- Department of Orthopaedic Surgery, UConn Health, Farmington, CT, USA
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA
| | - Namdev B. Shelke
- Department of Orthopaedic Surgery, UConn Health, Farmington, CT, USA
- Institute for Regenerative Engineering, UConn Health, Farmington, CT, USA
| | - Kazunori Hoshino
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA
| | - Swetha Rudraiah
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Saint Joseph, Hartford, CT, 06103, USA
| | - Sangamesh G. Kumbar
- Department of Orthopaedic Surgery, UConn Health, Farmington, CT, USA
- Institute for Regenerative Engineering, UConn Health, Farmington, CT, USA
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA
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235
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Washington KE, Kularatne RN, Karmegam V, Biewer MC, Stefan MC. Recent advances in aliphatic polyesters for drug delivery applications. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2016; 9. [DOI: 10.1002/wnan.1446] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 09/30/2016] [Accepted: 10/31/2016] [Indexed: 01/24/2023]
Affiliation(s)
| | | | - Vasanthy Karmegam
- Department of Chemistry University of Texas at Dallas Richardson TX USA
| | - Michael C. Biewer
- Department of Chemistry University of Texas at Dallas Richardson TX USA
| | - Mihaela C. Stefan
- Department of Chemistry University of Texas at Dallas Richardson TX USA
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236
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Wu HL, Yang JL, Luo M, Wang RY, Xu JT, Du BY, Zhang XH, Darensbourg DJ. Poly(trimethylene monothiocarbonate) from the Alternating Copolymerization of COS and Oxetane: A Semicrystalline Copolymer. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02285] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hai-Lin Wu
- MOE
Key Laboratory of Macromolecular Synthesis and Functionalization,
Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jia-Liang Yang
- MOE
Key Laboratory of Macromolecular Synthesis and Functionalization,
Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ming Luo
- MOE
Key Laboratory of Macromolecular Synthesis and Functionalization,
Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Rui-Yang Wang
- MOE
Key Laboratory of Macromolecular Synthesis and Functionalization,
Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jun-Ting Xu
- MOE
Key Laboratory of Macromolecular Synthesis and Functionalization,
Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Bin-Yang Du
- MOE
Key Laboratory of Macromolecular Synthesis and Functionalization,
Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xing-Hong Zhang
- MOE
Key Laboratory of Macromolecular Synthesis and Functionalization,
Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Donald J. Darensbourg
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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237
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Ameen F, Hadi S, Moslem M, Al-Sabri A, Yassin MA. Biodegradation of engine oil by fungi from mangrove habitat. J GEN APPL MICROBIOL 2016; 61:185-92. [PMID: 26582288 DOI: 10.2323/jgam.61.185] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The pollution of land and water by petroleum compounds is a matter of growing concern necessitating the development of methodologies, including microbial biodegradation, to minimize the impending impacts. It has been extensively reported that fungi from polluted habitats have the potential to degrade pollutants, including petroleum compounds. The Red Sea is used extensively for the transport of oil and is substantially polluted, due to leaks, spills, and occasional accidents. Tidal water, floating debris, and soil sediment were collected from mangrove stands on three polluted sites along the Red Sea coast of Saudi Arabia and forty-five fungal isolates belonging to 13 genera were recovered from these samples. The isolates were identified on the basis of a sequence analysis of the 18S rRNA gene fragment. Nine of these isolates were found to be able to grow in association with engine oil, as the sole carbon source, under in vitro conditions. These selected isolates and their consortium accumulated greater biomass, liberated more CO2, and produced higher levels of extracellular enzymes, during cultivation with engine oil as compared with the controls. These observations were authenticated by gas chromatography-mass spectrophotometry (GC-MS) analysis, which indicated that many high mass compounds present in the oil before treatment either disappeared or showed diminished levels.
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Affiliation(s)
- Fuad Ameen
- Department of Botany & Microbiology, Faculty of Science, King Saud University
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238
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Berber Yamak H. THERMAL, MECHANICAL AND ANTIBACTERIAL PROPERTIES OF LDPE/STARCH BIO-BASED POLYMER BLENDS FOR FOOD PACKING APPLICATIONS. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2016. [DOI: 10.18596/jotcsa.287300] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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239
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Zhu J, Li L, Zhang S, Li X, Zhang B. Multi-scale structural changes of starch-based material during microwave and conventional heating. Int J Biol Macromol 2016; 92:270-277. [DOI: 10.1016/j.ijbiomac.2016.07.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 07/04/2016] [Accepted: 07/07/2016] [Indexed: 11/16/2022]
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240
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Simão JA, Bellani CF, Branciforti MC. Thermal properties and crystallinity of PCL/PBSA/cellulose nanocrystals grafted with PCL chains. J Appl Polym Sci 2016. [DOI: 10.1002/app.44493] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- José Alexandre Simão
- Department of Materials Engineering, Engineering School of Sao Carlos; University of Sao Paulo; Sao Carlos SP Brazil
| | | | - Marcia Cristina Branciforti
- Department of Materials Engineering, Engineering School of Sao Carlos; University of Sao Paulo; Sao Carlos SP Brazil
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241
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Su SK, Gu JH, Lee HT, Yu SH, Wu CL, Suen MC. Effects of an Aromatic Fluoro-Diol and Polycaprolactone on the Properties of the Resultant Polyurethanes. ADVANCES IN POLYMER TECHNOLOGY 2016. [DOI: 10.1002/adv.21773] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shuenn-Kung Su
- Department of Materials Science and Engineering; National Taiwan University of Science and Technology; Taipei 10607 Taiwan
| | - Jia-Hao Gu
- Department of Materials Science and Engineering; National Taiwan University of Science and Technology; Taipei 10607 Taiwan
| | - Hsun-Tsing Lee
- Department of Materials Science and Engineering; Vanung University; Jongli Taoyuan 32061 Taiwan
| | - Shu-Huei Yu
- Department of Materials Science and Engineering; Vanung University; Jongli Taoyuan 32061 Taiwan
| | - Cheng-Lung Wu
- Department of Materials Science and Engineering; National Taiwan University of Science and Technology; Taipei 10607 Taiwan
| | - Maw-Cherng Suen
- Department of Creative Fashion Design; Taoyuan Innovation Institute of Technology; Jongli Taoyuan 32091 Taiwan
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242
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Gutiérrez TJ, Alvarez VA. Cellulosic materials as natural fillers in starch-containing matrix-based films: a review. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1814-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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243
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Tang D, Chen Z, Correa-Netto F, Macosko CW, Hillmyer MA, Zhang G. Poly(urea ester): A family of biodegradable polymers with high melting temperatures. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28355] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Donglin Tang
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Zijian Chen
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Felipe Correa-Netto
- Department of Chemical Engineering and Materials Science; University of Minnesota, Minneapolis; Minnesota 55455-0431
| | - Christopher W. Macosko
- Department of Chemical Engineering and Materials Science; University of Minnesota, Minneapolis; Minnesota 55455-0431
| | - Marc A. Hillmyer
- Department of Chemistry; University of Minnesota; Minneapolis Minnesota 55455-0431
| | - Guangzhao Zhang
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 People's Republic of China
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244
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Synthesis and characterisation of novel flame retardant polyurethanes containing designed phosphorus units. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1098-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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245
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Male U, Jo EJ, Park JY, Huh DS. Surface functionalization of honeycomb-patterned porous poly(ε-caprolactone) films by interfacial polymerization of aniline. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.07.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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246
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Karimi N, Kunwar P, Hassinen J, Ras RHA, Toivonen J. Micropatterning of silver nanoclusters embedded in polyvinyl alcohol films. OPTICS LETTERS 2016; 41:3627-3630. [PMID: 27472635 DOI: 10.1364/ol.41.003627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Direct laser writing has been utilized to fabricate highly photostable fluorescent nanocluster microstructures in an organic polymer poly(methacrylic acid), where the carboxyl functional group is reported to play a vital role in nanocluster stabilization. In this Letter, we demonstrate that not only the polymer containing the carboxyl functional group, but also the polymer comprising the hydroxyl group, namely polyvinyl alcohol (PVA), can act as an appropriate stabilizer matrix for laser-induced synthesis and patterning of silver nanoclusters. The as-formed nanoclusters in the PVA film exhibit broadband emission and photostability comparable to the nanoclusters formed in the poly(methacrylic acid) polymer. As PVA is a widely used, nontoxic, biocompatible and biodegradable polymer, the technique of patterning fluorescent nanoclusters in PVA thin films is expected to find numerous applications in fields like fluorescence imaging, biolabeling, and sensing.
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247
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Mhd Haniffa MAC, Ching YC, Abdullah LC, Poh SC, Chuah CH. Review of Bionanocomposite Coating Films and Their Applications. Polymers (Basel) 2016; 8:E246. [PMID: 30974522 PMCID: PMC6431997 DOI: 10.3390/polym8070246] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 05/23/2016] [Accepted: 06/13/2016] [Indexed: 11/30/2022] Open
Abstract
The properties of a composite material depend on its constituent materials such as natural biopolymers or synthetic biodegradable polymers and inorganic or organic nanomaterials or nano-scale minerals. The significance of bio-based and synthetic polymers and their drawbacks on coating film application is currently being discussed in research papers and articles. Properties and applications vary for each novel synthetic bio-based material, and a number of such materials have been fabricated in recent years. This review provides an in-depth discussion on the properties and applications of biopolymer-based nanocomposite coating films. Recent works and articles are cited in this paper. These citations are ubiquitous in the development of novel bionanocomposites and their applications.
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Affiliation(s)
- Mhd Abd Cader Mhd Haniffa
- Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Yern Chee Ching
- Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Luqman Chuah Abdullah
- Department of Chemical Engineering, Faculty of Engineering, University Putra Malaysia, Serdang 43400, Malaysia.
- Institute of Tropical Forestry and Forest Product (INTROP), University Putra Malaysia, Serdang 43400, Malaysia.
| | - Sin Chew Poh
- Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Cheng Hock Chuah
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
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248
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Cummings S, Zhang Y, Kazemi N, Penlidis A, Dubé MA. Determination of reactivity ratios for the copolymerization of poly(acrylic acid-co-itaconic acid). J Appl Polym Sci 2016. [DOI: 10.1002/app.44014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shidan Cummings
- Department of Chemical & Biological Engineering; University of Ottawa; Ottawa, ON K1N 6N5 Canada
| | - Yujie Zhang
- Department of Chemical & Biological Engineering; University of Ottawa; Ottawa, ON K1N 6N5 Canada
| | - Niousha Kazemi
- Department of Chemical Engineering; University of Waterloo; Waterloo, ON N2L 3G1 Canada
| | - Alexander Penlidis
- Department of Chemical Engineering; University of Waterloo; Waterloo, ON N2L 3G1 Canada
| | - Marc A. Dubé
- Department of Chemical & Biological Engineering; University of Ottawa; Ottawa, ON K1N 6N5 Canada
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249
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Rani-Borges B, Faria AU, Campos AD, Gonçalves SPC, Martins-Franchetti SM. Biodegradation of additive PHBV/PP-co-PE films buried in soil. POLIMEROS 2016. [DOI: 10.1590/0104-1428.2127] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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250
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Chaves RP, Fechine GJM. Thermo stabilisation of poly (butylene adipate-co-terephthalate). POLIMEROS 2016. [DOI: 10.1590/0104-1428.2196] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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