201
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Han L, Cui S, Yu HY, Song M, Zhang H, Grishkewich N, Huang C, Kim D, Tam KMC. Self-Healable Conductive Nanocellulose Nanocomposites for Biocompatible Electronic Skin Sensor Systems. ACS APPLIED MATERIALS & INTERFACES 2019; 11:44642-44651. [PMID: 31684724 DOI: 10.1021/acsami.9b17030] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Electronic skins are developed for applications such as biomedical sensors, robotic prosthetics, and human-machine interactions, which raise the interest in composite materials that possess both flexibility and sensing properties. Polypyrrole-coated cellulose nanocrystals and cellulose nanofibers were prepared using iron(III) chloride (FeCl3) oxidant, which were used to reinforce polyvinyl alcohol (PVA). The combination of weak H-bonds and iron coordination bonds and the synergistic effect of these components yielded self-healing nanocomposite films with robust mechanical strength (409% increase compared to pure PVA and high toughness up to 407.1%) and excellent adhesion (9670 times greater than its own weight) to various substrates in air and water. When damaged, the nanocomposite films displayed good mechanical (72.0-76.3%) and conductive (54.9-91.2%) recovery after a healing time of 30 min. More importantly, the flexible nanocomposites possessed high strain sensitivity under subtle strains (<48.5%) with a gauge factor (GF) of 2.52, which was relatively larger than the GF of ionic hydrogel-based skin sensors. These nanocomposite films possessed superior sensing performance for real-time monitoring of large and subtle human motions (finger bending motions, swallowing, and wrist pulse); thus, they have great potentials in health monitoring, smart flexible skin sensors. and wearable electronic devices.
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Affiliation(s)
- Lian Han
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Avenue West , Waterloo N2L 3G1 , Ontario , Canada
| | - Songbo Cui
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Avenue West , Waterloo N2L 3G1 , Ontario , Canada
| | - Hou-Yong Yu
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Avenue West , Waterloo N2L 3G1 , Ontario , Canada
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, School of Materials Science and Engineering , Zhejiang Sci-Tech University , Xiasha Higher Education Park Avenue 2 No. 928 , Hangzhou 310018 , Zhejiang , China
| | - Meili Song
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, School of Materials Science and Engineering , Zhejiang Sci-Tech University , Xiasha Higher Education Park Avenue 2 No. 928 , Hangzhou 310018 , Zhejiang , China
| | - Haoyu Zhang
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Avenue West , Waterloo N2L 3G1 , Ontario , Canada
| | - Nathan Grishkewich
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Avenue West , Waterloo N2L 3G1 , Ontario , Canada
| | - Congguo Huang
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Avenue West , Waterloo N2L 3G1 , Ontario , Canada
- School of Chemical Engineering , Xuzhou College of Industrial Technology , No. 1 Xiangwang Road , Xuzhou 221140 , Jiangsu , China
| | - Daesung Kim
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Avenue West , Waterloo N2L 3G1 , Ontario , Canada
| | - Kam Michael Chiu Tam
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Avenue West , Waterloo N2L 3G1 , Ontario , Canada
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202
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Ailincai D, Gavril G, Marin L. Polyvinyl alcohol boric acid - A promising tool for the development of sustained release drug delivery systems. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110316. [PMID: 31761179 DOI: 10.1016/j.msec.2019.110316] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 10/01/2019] [Accepted: 10/14/2019] [Indexed: 01/04/2023]
Abstract
The paper deals with the design and investigation of the morphology, in vitro drug release and biocompatibility of some new formulations based on polyvinyl alcohol boric acid (PVAB) and diclofenac sodium salt (DCF), with the aim to explore the ability of PVAB to act as a matrix for controlled drug delivery systems. A series of three formulations was obtained by mixing the drug and the polymeric matrix in different mass ratios, with high drug content from 10% w/w to 30% w/w. Their structural and supramolecular characterization, performed by FTIR spectroscopy and X-ray diffraction, revealed important physical interactions between the drug and the polymeric matrix. The morphological data, obtained by X-ray diffraction, polarized optical microscopy and scanning electron microscopy revealed the presence of the drug into the PVAB polymeric matrix, as micrometric polycrystals with a mean diameter in the range 10-15 μm, depending on the drug/polymer ratio. The investigation of their surface peculiarities indicated highly hydrophilic surfaces with a water to air contact angle between 29.9 and 41.4 deg and a surface free energy of 45.6-54.2 N/m2. The in vitro release kinetics was monitored by UV-VIS spectroscopy and the cytotoxic effect was investigated in vitro on fibroblasts and HeLa cells. The PVAB proved excellent cytocompatibility, a relative cell viability of the fibroblasts higher than 90% being recorded for concentrations of PVAB up to 7.5% w/v. The drug has been strongly anchored into the electron deficient PVAB matrix, fact which led to its prolonged release up to 5 days. These findings recommend PVAB as a versatile tool for the development of sustained release drug delivery systems with real chances to cross the gap from theory to applications.
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Affiliation(s)
- Daniela Ailincai
- "Petru Poni" Institute of Macromolecular Chemistry, Iasi, Romania.
| | - Gabriela Gavril
- "Petru Poni" Institute of Macromolecular Chemistry, Iasi, Romania
| | - Luminita Marin
- "Petru Poni" Institute of Macromolecular Chemistry, Iasi, Romania
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203
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Yang HW, Ju SP, Chen HY, Cheng YC, Hsu WL. Ovalbumin-Loaded Gelation Microneedles Made of Predictive Formulation by Molecular Dynamics Simulation for Enhancement of Skin Immunization. ACS Biomater Sci Eng 2019; 5:6012-6021. [PMID: 33405723 DOI: 10.1021/acsbiomaterials.9b01167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Gelation microneedle (GMNs) based vaccinations with tumor antigens have been considered to be an attractive method for transcutaneous immunization because of their superior ability to deliver vaccines through the stratum corneum (SC) in a minimally invasive manner, which subsequently induces adaptive antitumor immunity. In this study, molecular dynamics (MD) uniaxial tension simulations were conducted to predict the formulation of poly(vinyl alcohol) (PVA; possesses high water solubility) and poly(methyl vinyl ether-altmaleic anhydride) (PMVEMA; possesses high mechanical strength) blend that has the strongest mechanical properties. To validate the accuracy of the Dreiding potential for these two polymers, their densities and Hildebrand solubility parameters were first predicted using MD simulations. These values exhibited good agreement with the corresponding experimental results, indicating the accuracy of the Dreiding potential for the polymers. Regarding the simulation results, the number density of H-bonds between PVA and PMVEMA was the highest at 50% PMVEMA, which can significantly enhance the mechanical strength of pristine PVA for enhanced skin immunization. In terms of further experimental validation, evidence from mechanical strength, solubility, in vitro porcine skin penetration tests, and in vivo immunization were consistent with our simulation predictions. In addition, our results indicated that delivery of ovalbumin (OVA) using GMN patches fabricated using PVA/PMVEMA (50%/50%) provided even stronger immune responses. Using this molecular simulation procedure, the optimal fraction of PVA/PMVEMA composite for the strongest mechanical properties can be rapidly predicted to reduce research time and costs in related experiments.
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Affiliation(s)
- Hung-Wei Yang
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan, Republic of China
| | - Shin-Pon Ju
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan, Republic of China.,Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
| | - Hsing-Yin Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
| | - Yi-Chi Cheng
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan, Republic of China
| | - Wen-Lin Hsu
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan, Republic of China
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204
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Naumenko E, Fakhrullin R. Halloysite Nanoclay/Biopolymers Composite Materials in Tissue Engineering. Biotechnol J 2019; 14:e1900055. [PMID: 31556237 DOI: 10.1002/biot.201900055] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 08/23/2019] [Indexed: 12/29/2022]
Abstract
Biocompatible materials for the fabrication of tissue substitutes are crucially important in the advancement of modern medicinal biotechnology. These materials, to serve their function, should be similar in physical, chemical, biological, and structural properties to native tissues which they are aimed to mimic. The porosity of artificial scaffolds is essential for normal nutrient transmission to cells, gas diffusion, and cell attachment and proliferation. Nanoscale inorganic additives and dopants are widely used to improve the functional properties of the polymer materials for tissue engineering. Among these inorganic dopants, halloysite nanotubes are arguably the most perspective candidates because of their biocompatibility and functional properties allowing to enhance significantly the mechanical and chemical stability of tissue engineering scaffolds. Here, this vibrant field of biotechnology for regenerative medicine is overviewed.
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Affiliation(s)
- Ekaterina Naumenko
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, 420008, Republic of Tatarstan, Russian Federation
| | - Rawil Fakhrullin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, 420008, Republic of Tatarstan, Russian Federation
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205
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Nasir A, Masood F, Yasin T, Hameed A. Progress in polymeric nanocomposite membranes for wastewater treatment: Preparation, properties and applications. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.06.052] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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206
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Wali A, Gorain M, Inamdar S, Kundu G, Badiger M. In Vivo Wound Healing Performance of Halloysite Clay and Gentamicin-Incorporated Cellulose Ether-PVA Electrospun Nanofiber Mats. ACS APPLIED BIO MATERIALS 2019; 2:4324-4334. [DOI: 10.1021/acsabm.9b00589] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Ashwini Wali
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
- Department of Chemical Engineering, Vishwakarma Institute of Technology, Bibwewadi, Pune, Maharashtra 411037, India
| | - Mahadeo Gorain
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Centre for Cell Science, Pune, Maharashtra 411007, India
| | - Satish Inamdar
- Department of Chemical Engineering, Vishwakarma Institute of Technology, Bibwewadi, Pune, Maharashtra 411037, India
| | - Gopal Kundu
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Centre for Cell Science, Pune, Maharashtra 411007, India
| | - Manohar Badiger
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
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207
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Abid Z, Strindberg S, Javed MM, Mazzoni C, Vaut L, Nielsen LH, Gundlach C, Petersen RS, Müllertz A, Boisen A, Keller SS. Biodegradable microcontainers - towards real life applications of microfabricated systems for oral drug delivery. LAB ON A CHIP 2019; 19:2905-2914. [PMID: 31367713 DOI: 10.1039/c9lc00527g] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Microfabrication techniques have been applied to develop micron-scale devices for oral drug delivery with a high degree of control over size, shape and material composition. Recently, microcontainers have been introduced as a novel approach to obtain unidirectional release to avoid luminal drug loss, enhance drug permeation, protect drug payload from the harsh environment of the stomach, and explore the ability for targeted drug delivery. However, in order to eventually pave the way for real life applications of these microfabricated drug delivery systems, it is necessary to fabricate them in biodegradable materials approved for similar applications and with strategies that potentially allow for large scale production. In this study, we for the first time evaluate biodegradable microcontainers for oral drug delivery. Asymmetric poly-ε-caprolactone (PCL) microcontainers with a diameter of 300 μm and a volume of 2.7 nL are fabricated with a novel single-step fabrication process. The microcontainers are loaded with the model drug paracetamol and coated with an enteric pH-sensitive Eudragit® S100 coating to protect the drug until it reaches the desired location in the small intestine. In vitro dissolution studies are performed to assess the drug load and release profile of the PCL microcontainers. Finally, in vivo studies in rats showed a higher bioavailability compared to conventional dosage forms and confirm the potential of biodegradable microcontainers for oral drug delivery.
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Affiliation(s)
- Zarmeena Abid
- The Danish National Research Foundation and, Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Denmark and National Centre for Nano Fabrication and Characterization, DTU Nanolab, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
| | - Sophie Strindberg
- The Danish National Research Foundation and, Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Denmark and Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Madeeha M Javed
- The Danish National Research Foundation and, Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Denmark and National Centre for Nano Fabrication and Characterization, DTU Nanolab, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
| | - Chiara Mazzoni
- The Danish National Research Foundation and, Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Denmark and Department of Health Technology, DTU Health Tech, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Lukas Vaut
- The Danish National Research Foundation and, Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Denmark and Department of Health Technology, DTU Health Tech, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Line Hagner Nielsen
- The Danish National Research Foundation and, Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Denmark and Department of Health Technology, DTU Health Tech, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Carsten Gundlach
- Department of Physics, DTU Physics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Ritika Singh Petersen
- The Danish National Research Foundation and, Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Denmark and National Centre for Nano Fabrication and Characterization, DTU Nanolab, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
| | - Anette Müllertz
- The Danish National Research Foundation and, Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Denmark and Department of Physics, DTU Physics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Anja Boisen
- The Danish National Research Foundation and, Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Denmark and Department of Health Technology, DTU Health Tech, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Stephan S Keller
- The Danish National Research Foundation and, Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Denmark and National Centre for Nano Fabrication and Characterization, DTU Nanolab, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
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208
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Citric acid crosslinked carboxymethylcellulose-polyvinyl alcohol hydrogel films for extended release of water soluble basic drugs. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.05.013] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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209
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Deshpande TD, Singh YRG, Patil S, Joshi YM, Sharma A. Adhesion strength and viscoelastic properties of polydimethylsiloxane (PDMS) based elastomeric nanocomposites with embedded electrospun nanofibers. SOFT MATTER 2019; 15:5739-5747. [PMID: 31268461 DOI: 10.1039/c9sm00533a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In the present study, the adhesive and viscoelastic properties of polydimethylsiloxane (PDMS) based nanocomposite pressure sensitive adhesives (PSAs) with embedded electrospun polyacrylonitrile (PAN) and polyvinyl alcohol (PVA) nanofibers as fillers were investigated. PDMS nanocomposite adhesive films using PAN and PVA nanofibers were synthesized by dispersing fillers in the matrix by a solvent mixing process. The adhesion strength and reusability of the prepared nanocomposite PSA films were measured using peel tests as the fraction of nanofibers in the polymer matrix is increased. The variations of the adhesive properties of the PSAs as function of the type and loading of filler were related to their rheological properties in terms of shear and elastic moduli. Although 3-fold enhancement of the adhesion strength was achieved with 0.5 wt% loading for both types (PAN and PVA) of nanocomposites as compared to elastic PDMS, the composite adhesive with PAN nanofibers can provide a superior balance of rheological properties, resulting in improved reusability over other PSAs. The differences in the adhesion and viscoelastic properties of the composite PSAs are attributed to the polymer chemistry, processability, and architecture of the electrospun nanofibers in the soft PDMS matrix.
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Affiliation(s)
- Tushar D Deshpande
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India.
| | - Yogesh R G Singh
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India.
| | - Sandip Patil
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India. and E-Spin Nanotech Pvt Ltd SIIC, SIDBI Incubation Centre Indian Institute of Technology Kanpur, Kanpur-208016, UP, India
| | - Yogesh M Joshi
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India.
| | - Ashutosh Sharma
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India.
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210
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Mandegari M, Ghasemi‐Mobarakeh L, Zamani M. Manipulating the degradation rate of PVA nanoparticles by a novel chemical‐free method. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4683] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Mansoor Mandegari
- Department of Textile EngineeringIsfahan University of Technology Isfahan Iran
| | | | - Maedeh Zamani
- Department of Cardiothoracic Surgery—Adult Cardiac SurgeryStanford University Stanford California USA
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211
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Peng L, Zhou Y, Lu W, Zhu W, Li Y, Chen K, Zhang G, Xu J, Deng Z, Wang D. Characterization of a novel polyvinyl alcohol/chitosan porous hydrogel combined with bone marrow mesenchymal stem cells and its application in articular cartilage repair. BMC Musculoskelet Disord 2019; 20:257. [PMID: 31138200 PMCID: PMC6540438 DOI: 10.1186/s12891-019-2644-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 05/20/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Different substances are combined to compensate for each other's drawbacks and create an appropriate biomaterial. A novel Polyvinyl alcohol (PVA)/chitosan (CS) porous hydrogel was designed and applied to the treatment of osteochondral defects. METHODS Hydrogels of various PVA/CS ratios were tested for physiochemical and mechanical properties in addition to cytotoxicity and biocompatibility. The hydrogels with the best PVA/CS ratio were used in the animal study. Osteochondral defects were created at the articular cartilage of 18 rabbits. They were assigned to different groups randomly (n = 6 per group): the osteochondral defect only group (control group), the osteochondral defect treated with hydrogel group (HG group), and the osteochondral defect treated with hydrogel loaded with bone marrow mesenchymal stem cells (BMSCs) group (HG-BMSCs group). The cartilage was collected for macro-observation and histological evaluation at 12 weeks after surgery. RESULTS The Hydrogel with PVA/CS ratio of 6:4 exhibited the best mechanical properties; it also showed stable physical and chemical properties with porosity and over 90% water content. Furthermore, it demonstrated no cytotoxicity and was able to promote cell proliferation. The HG-BMSCs group achieved the best cartilage healing. CONCLUSIONS The novel PVA/CS porous composite hydrogel could be a good candidate for a tissue engineering material in cartilage repair.
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Affiliation(s)
- Liangquan Peng
- Department of Sports Medicine, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, 518035 Guangdong China
- School of Medicine, Shenzhen University, Shenzhen, 518060 Guangdong China
- Clinical College of Anhui Medical University Affiliated Shenzhen Second Hospital, Shenzhen, 518035 Guangdong China
- Key Laboratory of Tissue Engineering of Shenzhen, Shenzhen Second People’s Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen, 518035 Guangdong China
- Guangzhou Medical University, Guangzhou, 510182 Guangdong China
| | - Yong Zhou
- Department of Sports Medicine, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, 518035 Guangdong China
- School of Medicine, Shenzhen University, Shenzhen, 518060 Guangdong China
- Clinical College of Anhui Medical University Affiliated Shenzhen Second Hospital, Shenzhen, 518035 Guangdong China
| | - Wei Lu
- Department of Sports Medicine, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, 518035 Guangdong China
| | - Weimin Zhu
- Department of Sports Medicine, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, 518035 Guangdong China
- Clinical College of Anhui Medical University Affiliated Shenzhen Second Hospital, Shenzhen, 518035 Guangdong China
| | - Yusheng Li
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008 Hunan China
| | - Kang Chen
- Department of Sports Medicine, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, 518035 Guangdong China
| | - Greg Zhang
- McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77054 USA
| | - Jian Xu
- Department of Sports Medicine, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, 518035 Guangdong China
- Clinical College of Anhui Medical University Affiliated Shenzhen Second Hospital, Shenzhen, 518035 Guangdong China
| | - Zhenhan Deng
- Department of Sports Medicine, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, 518035 Guangdong China
- School of Medicine, Shenzhen University, Shenzhen, 518060 Guangdong China
| | - Daping Wang
- Department of Sports Medicine, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, 518035 Guangdong China
- School of Medicine, Shenzhen University, Shenzhen, 518060 Guangdong China
- Clinical College of Anhui Medical University Affiliated Shenzhen Second Hospital, Shenzhen, 518035 Guangdong China
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212
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Vinokurov V, Novikov A, Rodnova V, Anikushin B, Kotelev M, Ivanov E, Lvov Y. Cellulose Nanofibrils and Tubular Halloysite as Enhanced Strength Gelation Agents. Polymers (Basel) 2019; 11:E919. [PMID: 31137717 PMCID: PMC6571770 DOI: 10.3390/polym11050919] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 05/21/2019] [Accepted: 05/22/2019] [Indexed: 01/22/2023] Open
Abstract
Silica gels are widely employed in water shutoff services, making them an essential tool in oil well management. Silica nanoparticles may serve as a strengthening additive for polymer hydrogels. In this study, we look at this statement from a different angle: What additives could be used to increase the strength of silica gels? Colloidal silica gels were prepared with various additives, and gel strength was measured by a Veiler-Rebinder apparatus. We found that cellulose nanofibrils considerably increase the gel strength (from 20-25 to 35-40 kPa), which is comparable with the industrial anionic polymer Praestol 2540. Cellulose nanofibrils can be produced from cheap industrial-grade cellulose with low-cost industrial chemicals and could be partially replaced by the even less expensive halloysite nanoclay. Cellulose nanofibrils produced from renewable sources and naturally occurring halloysite nanoclay could be used as complementary reinforcing agents.
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Affiliation(s)
- Vladimir Vinokurov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Andrei Novikov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Valentina Rodnova
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
- NPK Spetsburmaterialy, Zhukovskiy, 140131 Moscow, Russia.
| | - Boris Anikushin
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Mikhail Kotelev
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Evgenii Ivanov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Yuri Lvov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA 71272, USA.
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213
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Sarathi M, Doraiswamy N, Pennathur G. Enhanced stability of immobilized keratinolytic protease on electrospun nanofibers. Prep Biochem Biotechnol 2019; 49:695-703. [DOI: 10.1080/10826068.2019.1605524] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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214
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Narkkun T, Boonying P, Yuenyao C, Amnuaypanich S. Green synthesis of porous polyvinyl alcohol membranes functionalized with
l
‐arginine and their application in the removal of 4‐nitrophenol from aqueous solution. J Appl Polym Sci 2019. [DOI: 10.1002/app.47835] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Thanitporn Narkkun
- Applied Chemistry Division, Department of Chemistry and Center of Excellence for Innovation in Chemistry, (PERCH‐CIC), Faculty of ScienceKhon Kaen University Khon Kaen 40002 Thailand
| | - Patharawadee Boonying
- Applied Chemistry Division, Department of Chemistry and Center of Excellence for Innovation in Chemistry, (PERCH‐CIC), Faculty of ScienceKhon Kaen University Khon Kaen 40002 Thailand
| | - Chalad Yuenyao
- Materials Chemistry Research Center, Faculty of ScienceKhon Kaen University Khon Kaen 40002 Thailand
- Department of Physics, Faculty of Science and TechnologyPhetchabun Rajabhat University Phetchabun 67000 Thailand
| | - Sittipong Amnuaypanich
- Applied Chemistry Division, Department of Chemistry and Center of Excellence for Innovation in Chemistry, (PERCH‐CIC), Faculty of ScienceKhon Kaen University Khon Kaen 40002 Thailand
- Materials Chemistry Research Center, Faculty of ScienceKhon Kaen University Khon Kaen 40002 Thailand
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215
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Trigona C, Al-Hamry A, Kanoun O, Baglio S. Analysis of a Hybrid Micro-Electro-Mechanical Sensor Based on Graphene Oxide/Polyvinyl Alcohol for Humidity Measurements. SENSORS (BASEL, SWITZERLAND) 2019; 19:E1720. [PMID: 30974875 PMCID: PMC6479286 DOI: 10.3390/s19071720] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 11/16/2022]
Abstract
In this paper, we present a redundant microsensor based on the bulk and etch silicononinsulator (BESOI) process for measuring relative humidity (RH), by using a grapheneoxide/polyvinylalcohol (GO/PVA) composite. The MEMS is a mechanical oscillator, composed of a proof mass with multilayer of nanomaterials (GO/PVA) and suspended by four crab-leg springs. The redundant approach realized concerns the use of different readout strategies in order to estimate the same measurand RH. This is an intriguing solution to realize a robust measurement system with multiple outputs, by using the GO/PVA as functional material. In the presence of RH variation, GO/PVA (1) changes its mass, and as consequence, a variation of the natural frequency of the integrated oscillator can be observed; and (2) varies its conductivity, which can be measured by using two integrated electrodes. The sensor was designed, analyzed and modeled; experimental results are reported here to demonstrate the effectiveness of our implementation.
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Affiliation(s)
- Carlo Trigona
- DIEEI, Dipartimento di Ingegneria Elettrica, Elettronica e Informatica, University of Catania, 95125, Catania, Italy.
| | - Ammar Al-Hamry
- Professorship of Measurement and Sensor Technology, Chemnitz University of Technology, ReichenhainerStraße 70, 09126 Chemnitz, Germany.
| | - Olfa Kanoun
- Professorship of Measurement and Sensor Technology, Chemnitz University of Technology, ReichenhainerStraße 70, 09126 Chemnitz, Germany.
| | - Salvatore Baglio
- DIEEI, Dipartimento di Ingegneria Elettrica, Elettronica e Informatica, University of Catania, 95125, Catania, Italy.
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216
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Electrospun Schizophyllan/polyvinyl alcohol blend nanofibrous scaffold as potential wound healing. Int J Biol Macromol 2019; 127:27-38. [DOI: 10.1016/j.ijbiomac.2018.12.256] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 12/22/2018] [Accepted: 12/27/2018] [Indexed: 01/28/2023]
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217
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Homayun B, Lin X, Choi HJ. Challenges and Recent Progress in Oral Drug Delivery Systems for Biopharmaceuticals. Pharmaceutics 2019; 11:E129. [PMID: 30893852 PMCID: PMC6471246 DOI: 10.3390/pharmaceutics11030129] [Citation(s) in RCA: 391] [Impact Index Per Article: 78.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/09/2019] [Accepted: 03/14/2019] [Indexed: 01/08/2023] Open
Abstract
Routes of drug administration and the corresponding physicochemical characteristics of a given route play significant roles in therapeutic efficacy and short term/long term biological effects. Each delivery method has favorable aspects and limitations, each requiring a specific delivery vehicles design. Among various routes, oral delivery has been recognized as the most attractive method, mainly due to its potential for solid formulations with long shelf life, sustained delivery, ease of administration and intensified immune response. At the same time, a few challenges exist in oral delivery, which have been the main research focus in the field in the past few years. The present work concisely reviews different administration routes as well as the advantages and disadvantages of each method, highlighting why oral delivery is currently the most promising approach. Subsequently, the present work discusses the main obstacles for oral systems and explains the most recent solutions proposed to deal with each issue.
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Affiliation(s)
- Bahman Homayun
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada.
| | - Xueting Lin
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada.
| | - Hyo-Jick Choi
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada.
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218
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Rodríguez-Rodríguez R, Espinosa-Andrews H, Velasquillo-Martínez C, García-Carvajal ZY. Composite hydrogels based on gelatin, chitosan and polyvinyl alcohol to biomedical applications: a review. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1581780] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Rogelio Rodríguez-Rodríguez
- Unidad Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Guadalajara, Jalisco, Mexico
| | - Hugo Espinosa-Andrews
- Unidad de Tecnología Alimentaria, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Zapopan, Jalisco, México
| | | | - Zaira Yunuen García-Carvajal
- Unidad Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Guadalajara, Jalisco, Mexico
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219
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Safoora Samiei, Moghadam PN, Fareghi AR, Arkak A. Synthesis of Conductive Nanocomposites by Template Polymerization of Aniline in the Presence of Modified Polyvinyl alcohol and Cu Nanoparticles. POLYMER SCIENCE SERIES B 2019. [DOI: 10.1134/s156009041902009x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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220
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Manoukian OS, Arul MR, Rudraiah S, Kalajzic I, Kumbar SG. Aligned microchannel polymer-nanotube composites for peripheral nerve regeneration: Small molecule drug delivery. J Control Release 2019; 296:54-67. [PMID: 30658124 PMCID: PMC6379151 DOI: 10.1016/j.jconrel.2019.01.013] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 01/03/2019] [Accepted: 01/14/2019] [Indexed: 12/18/2022]
Abstract
Peripheral nerve injury accounts for roughly 2.8% of all trauma patients with an annual cost of 7 billion USD in the U.S. alone. Current treatment options rely on surgical intervention with the use of an autograft, despite associated shortcomings. Engineered nerve guidance conduits, stem cell therapies, and transient electrical stimulation have reported to increase speeds of functional recovery. As an alternative to the conduction effects of electrical stimulation, we have designed and optimized a nerve guidance conduit with aligned microchannels for the sustained release of a small molecule drug that promotes nerve impulse conduction. A biodegradable chitosan structure reinforced with drug-loaded halloysite nanotubes (HNT) was formed into a foam-like conduit with interconnected, longitudinally-aligned pores with an average pore size of 59.3 ± 14.2 μm. The aligned composite with HNTs produced anisotropic mechanical behavior with a Young's modulus of 0.33 ± 0.1 MPa, very similar to that of native peripheral nerve. This manuscript reports on the sustained delivery of 4-Aminopyridine (4AP, molecular weight 94.1146 g/mol), a potassium-channel blocker as a growth factor alternative to enhance the rate of nerve regeneration. The conduit formulation released a total of 30 ± 2% of the encapsulated 4AP in the first 7 days. Human Schwann cells showed elevated expression of key proteins such as nerve growth factor, myelin protein zero, and brain derived neurotrophic factor in a 4AP dose dependent manner. Preliminary in vivo studies in a critical-sized sciatic nerve defect in Wistar rats confirmed conduit suturability and strength to withstand ambulatory forces over 4 weeks of their implantation. Histological evaluations suggest conduit biocompatibility and Schwann cell infiltration and organization within the conduit and lumen. These nerve guidance conduits and 4AP sustained delivery may serve as an attractive strategy for nerve repair and regeneration.
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Affiliation(s)
- Ohan S Manoukian
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA; Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT, USA
| | - Michael R Arul
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT, USA
| | - Swetha Rudraiah
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT, USA; Department of Pharmaceutical Sciences, University of Saint Joseph, Hartford, CT, USA
| | - Ivo Kalajzic
- Department of Reconstructive Sciences, University of Connecticut Health, Farmington, CT, USA
| | - Sangamesh G Kumbar
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA; Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT, USA.
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221
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Wang C, Wang J, Zeng L, Qiao Z, Liu X, Liu H, Zhang J, Ding J. Fabrication of Electrospun Polymer Nanofibers with Diverse Morphologies. Molecules 2019; 24:E834. [PMID: 30813599 PMCID: PMC6429487 DOI: 10.3390/molecules24050834] [Citation(s) in RCA: 142] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 02/21/2019] [Accepted: 02/23/2019] [Indexed: 11/17/2022] Open
Abstract
Fiber structures with nanoscale diameters offer many fascinating features, such as excellent mechanical properties and high specific surface areas, making them attractive for many applications. Among a variety of technologies for preparing nanofibers, electrospinning is rapidly evolving into a simple process, which is capable of forming diverse morphologies due to its flexibility, functionality, and simplicity. In such review, more emphasis is put on the construction of polymer nanofiber structures and their potential applications. Other issues of electrospinning device, mechanism, and prospects, are also discussed. Specifically, by carefully regulating the operating condition, modifying needle device, optimizing properties of the polymer solutions, some unique structures of core⁻shell, side-by-side, multilayer, hollow interior, and high porosity can be obtained. Taken together, these well-organized polymer nanofibers can be of great interest in biomedicine, nutrition, bioengineering, pharmaceutics, and healthcare applications.
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Affiliation(s)
- Chenyu Wang
- Department of Orthopedics, Hallym University, 1 Hallymdaehak-gil, Chuncheon, Gangwon-do 200-702, Korea.
| | - Jun Wang
- College of Chemistry, Fuzhou University, Fuzhou 350116, China.
| | - Liangdan Zeng
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China.
| | - Ziwen Qiao
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China.
| | - Xiaochen Liu
- College of Chemistry, Fuzhou University, Fuzhou 350116, China.
| | - He Liu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Jin Zhang
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China.
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
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222
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Saudi A, Rafienia M, Zargar Kharazi A, Salehi H, Zarrabi A, Karevan M. Design and fabrication of poly (glycerol sebacate)‐based fibers for neural tissue engineering: Synthesis, electrospinning, and characterization. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4575] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ahmad Saudi
- Department of Biomaterials, Tissue Engineering and Nanotechnology, School of Advanced Technologies in MedicineIsfahan University of Medical Sciences Isfahan Iran
| | - Mohammad Rafienia
- Biosensor Research CenterIsfahan University of Medical Sciences Isfahan Iran
| | - Anousheh Zargar Kharazi
- Department of Biomaterials, Tissue Engineering and Nanotechnology, School of Advanced Technologies in MedicineIsfahan University of Medical Sciences Isfahan Iran
| | - Hossein Salehi
- Department of Anatomical Sciences, School of MedicineIsfahan University of Medical Sciences Isfahan Iran
| | - Ali Zarrabi
- Department of Biotechnology, Faculty of Advanced Sciences & TechnologiesUniversity of Isfahan Isfahan Iran
| | - Mehdi Karevan
- Department of Mechanical EngineeringIsfahan University of Technology Isfahan Iran
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223
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Choi S, Kim HR, Kim HS. Fabrication of superabsorbent nanofibers based on sodium polyacrylate/poly(vinyl alcohol) and their water absorption characteristics. POLYM INT 2019. [DOI: 10.1002/pi.5765] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sejin Choi
- Department of Organic Material Science and EngineeringPusan National University Busan Republic of Korea
| | - Hye Ri Kim
- Department of Organic Material Science and EngineeringPusan National University Busan Republic of Korea
| | - Han Seong Kim
- Department of Organic Material Science and EngineeringPusan National University Busan Republic of Korea
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224
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A self-standing silver/crosslinked-poly(vinyl alcohol) network with microfibers, nanowires and nanoparticles and its linear aggregation. J Colloid Interface Sci 2019; 535:524-532. [DOI: 10.1016/j.jcis.2018.10.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 10/09/2018] [Accepted: 10/10/2018] [Indexed: 02/06/2023]
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225
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Memic A, Abudula T, Mohammed HS, Joshi Navare K, Colombani T, Bencherif SA. Latest Progress in Electrospun Nanofibers for Wound Healing Applications. ACS APPLIED BIO MATERIALS 2019; 2:952-969. [DOI: 10.1021/acsabm.8b00637] [Citation(s) in RCA: 166] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Adnan Memic
- Center of Nanotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Tuerdimaimaiti Abudula
- Center of Nanotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Halimatu S. Mohammed
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Kasturi Joshi Navare
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Thibault Colombani
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Sidi A. Bencherif
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
- Department of Bioengineering, Northeastern University, Boston, Massachusetts 02120, United States
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
- Sorbonne University, UTC CNTS UMR 7338, Biomechanics and Bioengineering, University of Technology of Compiegne, 60203 Compiegne, Cedex, France
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226
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Rejmontová P, Kovalcik A, Humpolíček P, Capáková Z, Wrzecionko E, Sáha P. The use of fractionated Kraft lignin to improve the mechanical and biological properties of PVA-based scaffolds. RSC Adv 2019; 9:12346-12353. [PMID: 35515881 PMCID: PMC9063551 DOI: 10.1039/c8ra09757g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 04/13/2019] [Indexed: 11/22/2022] Open
Abstract
The mechanical properties of poly(vinyl alcohol) (PVA)-based scaffolds were successfully improved. The improvements in mechanical properties correlated with the amount of Kraft lignin in PVA matrices. The critical property for any scaffold is its capacity to allow cells to ingrow and survive within its internal structure. The ingrowth of cells was tested using bioreactors creating simulated in vivo conditions. In the context of all the mentioned parameters, the most advantageous properties were exhibited by the scaffold containing 99 wt% PVA and 1 wt% Kraft lignin. The composites with 1 wt% Kraft lignin exhibited sufficient mechanical stability, a lack of cytotoxicity, and mainly the ability to allow the ingrowth of cells into the scaffold in a rotation bioreactor. The mechanical properties of poly(vinyl alcohol) (PVA)-based scaffolds were successfully improved.![]()
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Affiliation(s)
- Petra Rejmontová
- Centre of Polymer Systems
- Tomas Bata University in Zlin
- 76001 Zlin
- Czech Republic
- Polymer Centre
| | - Adriana Kovalcik
- Institute for Chemistry and Technology of Materials
- Graz University of Technology
- 8010 Graz
- Austria
- Department of Food Chemistry and Biotechnology
| | - Petr Humpolíček
- Centre of Polymer Systems
- Tomas Bata University in Zlin
- 76001 Zlin
- Czech Republic
- Polymer Centre
| | - Zdenka Capáková
- Centre of Polymer Systems
- Tomas Bata University in Zlin
- 76001 Zlin
- Czech Republic
| | - Erik Wrzecionko
- Centre of Polymer Systems
- Tomas Bata University in Zlin
- 76001 Zlin
- Czech Republic
- Department of Physics and Materials Engineering
| | - Petr Sáha
- Centre of Polymer Systems
- Tomas Bata University in Zlin
- 76001 Zlin
- Czech Republic
- Polymer Centre
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227
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Parsa P, Paydayesh A, Davachi SM. Investigating the effect of tetracycline addition on nanocomposite hydrogels based on polyvinyl alcohol and chitosan nanoparticles for specific medical applications. Int J Biol Macromol 2019; 121:1061-1069. [DOI: 10.1016/j.ijbiomac.2018.10.074] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 10/07/2018] [Accepted: 10/14/2018] [Indexed: 01/12/2023]
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228
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Domene-López D, Guillén M, Martin-Gullon I, García-Quesada J, Montalbán M. Study of the behavior of biodegradable starch/polyvinyl alcohol/rosin blends. Carbohydr Polym 2018; 202:299-305. [DOI: 10.1016/j.carbpol.2018.08.137] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 08/01/2018] [Accepted: 08/30/2018] [Indexed: 01/27/2023]
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229
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230
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Biomaterials of PVA and PVP in medical and pharmaceutical applications: Perspectives and challenges. Biotechnol Adv 2018; 37:109-131. [PMID: 30472307 DOI: 10.1016/j.biotechadv.2018.11.008] [Citation(s) in RCA: 204] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 10/25/2018] [Accepted: 11/20/2018] [Indexed: 01/12/2023]
Abstract
Poly(vinyl alcohol) (PVA) has attracted considerable research interest and is recognized among the largest volume of synthetic polymers that have been produced worldwide for almost one century. This is due to its exceptional properties which dictated its extensive use in a wide variety of applications, especially in medical and pharmaceutical fields. However, studies revealed that PVA-based biomaterials present some limitations that can restrict their use or performances. To overcome these limitations, various methods have been reported, among which blending with poly(vinylpyrrolidone) (PVP) showed promising results. Thus, our aim was to offer a systematic overview on the current state concerning the preparation, properties and various applications of biomaterials based on synergistic effect of mixtures between PVA and PVP. Future trends towards where the biomaterials research is headed were discussed, showing the promising opportunities that PVA and PVP can offer.
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231
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Huang Y, Mei L, Chen X, Wang Q. Recent Developments in Food Packaging Based on Nanomaterials. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E830. [PMID: 30322162 PMCID: PMC6215134 DOI: 10.3390/nano8100830] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 09/29/2018] [Accepted: 10/08/2018] [Indexed: 01/27/2023]
Abstract
The increasing demand for high food quality and safety, and concerns of environment sustainable development have been encouraging researchers in the food industry to exploit the robust and green biodegradable nanocomposites, which provide new opportunities and challenges for the development of nanomaterials in the food industry. This review paper aims at summarizing the recent three years of research findings on the new development of nanomaterials for food packaging. Two categories of nanomaterials (i.e., inorganic and organic) are included. The synthetic methods, physical and chemical properties, biological activity, and applications in food systems and safety assessments of each nanomaterial are presented. This review also highlights the possible mechanisms of antimicrobial activity against bacteria of certain active nanomaterials and their health concerns. It concludes with an outlook of the nanomaterials functionalized in food packaging.
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Affiliation(s)
- Yukun Huang
- School of Food and Bioengineering, Xihua University, Chengdu, Sichuan 610039, China.
| | - Lei Mei
- Department of Nutrition and Food Science, College of Agriculture and Natural Resources, University of Maryland, College Park, MD 20740, USA.
| | - Xianggui Chen
- School of Food and Bioengineering, Xihua University, Chengdu, Sichuan 610039, China.
| | - Qin Wang
- School of Food and Bioengineering, Xihua University, Chengdu, Sichuan 610039, China.
- Department of Nutrition and Food Science, College of Agriculture and Natural Resources, University of Maryland, College Park, MD 20740, USA.
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232
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Mobarra N, Soleimani M, Pakzad R, Enderami SE, Pasalar P. Three-dimensional nanofiberous PLLA/PCL scaffold improved biochemical and molecular markers hiPS cell-derived insulin-producing islet-like cells. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:S685-S692. [DOI: 10.1080/21691401.2018.1505747] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Naser Mobarra
- Department of Clinical Biochemistry, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Masoud Soleimani
- Department of Hematology, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Reza Pakzad
- Department of Epidemiology, Faculty of Health, Ilam University of Medical Sciences, Ilam, Iran
- Departments of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Parvin Pasalar
- Metabolic disorder Research center, Endocrinology and Metabolism, Molecular sciences institute, Tehran University of Medical Sciences, Tehran, Iran
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233
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Qi J, Zhang H, Wang Y, Mani MP, Jaganathan SK. Development and blood compatibility assessment of electrospun polyvinyl alcohol blended with metallocene polyethylene and plectranthus amboinicus (PVA/mPE/PA) for bone tissue engineering. Int J Nanomedicine 2018; 13:2777-2788. [PMID: 29785105 PMCID: PMC5955049 DOI: 10.2147/ijn.s151242] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Introduction Currently, the design of extracellular matrix (ECM) with nanoscale properties in bone tissue engineering is challenging. For bone tissue engineering, the ECM must have certain properties such as being nontoxic, highly porous, and should not cause foreign body reactions. Materials and methods In this study, the hybrid scaffold based on polyvinyl alcohol (PVA) blended with metallocene polyethylene (mPE) and plectranthus amboinicus (PA) was fabricated for bone tissue engineering via electrospinning. The fabricated hybrid nanocomposites were characterized by scanning electron microscopy (SEM), Fourier transform and infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), contact angle measurement, and atomic force microscopy (AFM). Furthermore, activated partial thromboplastin time (APTT), prothrombin time (PT), and hemolytic assays were used to investigate the blood compatibility of the prepared hybrid nanocomposites. Results The prepared hybrid nanocomposites showed reduced fiber diameter (238±45 nm) and also increased porosity (87%) with decreased pore diameter (340±86 nm) compared with pure PVA. The interactions between PVA, mPE, and PA were identified by the formation of the additional peaks as revealed in FTIR. Furthermore, the prepared hybrid nanocomposites showed a decreased contact angle of 51°±1.32° indicating a hydrophilic nature and exhibited lower thermal stability compared to pristine PVA. Moreover, the mechanical results revealed that the electrospun scaffold showed an improved tensile strength of 3.55±0.29 MPa compared with the pristine PVA (1.8±0.52 MPa). The prepared hybrid nanocomposites showed delayed blood clotting as noted in APTT and PT assays indicating better blood compatibility. Moreover, the hemolysis assay revealed that the hybrid nanocomposites exhibited a low hemolytic index of 0.6% compared with pure PVA, which was 1.6% suggesting the safety of the developed nanocomposite to red blood cells (RBCs). Conclusion The prepared nanocomposites exhibited better physico-chemical properties, sufficient porosity, mechanical strength, and blood compatibility, which favors it as a valuable candidate in bone tissue engineering for repairing the bone defects.
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Affiliation(s)
- Jie Qi
- Department of Orthopedics, Shaanxi Provincial People's Hospital
| | - Huang Zhang
- Department of Orthopedics, Han Zhong People's Hospital, Han Zhong, Shaanxi Province
| | - Yingzhou Wang
- Beijing Meinuoyikang Health Food Co., Ltd, Beijing, People's Republic of China
| | - Mohan Prasath Mani
- Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
| | - Saravana Kumar Jaganathan
- Department for Management of Science and Technology Development.,Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam.,IJN-UTM Cardiovascular Engineering Centre, Department of Clinical Sciences, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
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234
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Solikhin A, Murayama K. Enhanced properties of poly(vinyl alcohol) composite films filled with microfibrillated cellulose isolated from continuous steam explosion. ACTA ACUST UNITED AC 2018. [DOI: 10.1007/s12588-018-9208-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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235
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Aslam M, Kalyar MA, Raza ZA. Polyvinyl alcohol: A review of research status and use of polyvinyl alcohol based nanocomposites. POLYM ENG SCI 2018. [DOI: 10.1002/pen.24855] [Citation(s) in RCA: 210] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Muhammad Aslam
- Department of Physics; University of Sargodha; Sargodha 40100 Pakistan
- Department of Applied Sciences; National Textile University; Faisalabad 37610 Pakistan
| | - Mazhar Ali Kalyar
- Department of Physics; University of Sargodha; Sargodha 40100 Pakistan
| | - Zulfiqar Ali Raza
- Department of Applied Sciences; National Textile University; Faisalabad 37610 Pakistan
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236
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Tagami T, Nagata N, Hayashi N, Ogawa E, Fukushige K, Sakai N, Ozeki T. Defined drug release from 3D-printed composite tablets consisting of drug-loaded polyvinylalcohol and a water-soluble or water-insoluble polymer filler. Int J Pharm 2018; 543:361-367. [PMID: 29605693 DOI: 10.1016/j.ijpharm.2018.03.057] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 03/26/2018] [Accepted: 03/28/2018] [Indexed: 01/08/2023]
Abstract
3D-printed tablets are a promising new approach for personalized medicine. In this study, we fabricated composite tablets consisting of two components, a drug and a filler, by using a fused deposition modeling-type 3D printer. Polyvinylalcohol (PVA) polymer containing calcein (a model drug) was used as the drug component and PVA or polylactic acid (PLA) polymer without drug was used as the water-soluble or water-insoluble filler, respectively. Various kinds of drug-PVA/PVA and drug-PVA/PLA composite tablets were designed, and the 3D-printed tablets exhibited good formability. The surface area of the exposed drug component is highly correlated with the initial drug release rate. Composite tablets with an exposed top and a bottom covered with a PLA layer were fabricated. These tablets showed zero-order drug release by maintaining the surface area of the exposed drug component during drug dissolution. In contrast, the drug release profile varied for tablets whose exposed surface area changed. Composite tablets with different drug release lag times were prepared by changing the thickness of the PVA filler coating the drug component. These results which used PVA and PLA filler will provide useful information for preparing the tablets with multi-components and tailor-made tablets with defined drug release profiles using 3D printers.
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Affiliation(s)
- Tatsuaki Tagami
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Noriko Nagata
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Naomi Hayashi
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Emi Ogawa
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Kaori Fukushige
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Norihito Sakai
- The Nippon Synthetic Chemical Industry Co., Ltd., 2-4, Komatsubara-cho, Kita-ku, Osaka 530-0018, Japan
| | - Tetsuya Ozeki
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan.
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237
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Boonsuk P, Kaewtatip K, Chantarak S, Kelarakis A, Chaibundit C. Super-tough biodegradable poly(vinyl alcohol)/poly(vinyl pyrrolidone) blends plasticized by glycerol and sorbitol. J Appl Polym Sci 2018. [DOI: 10.1002/app.46406] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Phetdaphat Boonsuk
- Department of Materials Science and Technology, Faculty of Science; Prince of Songkla University; Hat Yai, Songkhla 90110 Thailand
| | - Kaewta Kaewtatip
- Department of Materials Science and Technology, Faculty of Science; Prince of Songkla University; Hat Yai, Songkhla 90110 Thailand
| | - Sirinya Chantarak
- Department of Materials Science and Technology, Faculty of Science; Prince of Songkla University; Hat Yai, Songkhla 90110 Thailand
| | - Antonios Kelarakis
- Centre for Materials Science, School of Physical Sciences and Computing; University of Central Lancashire; Preston PR12HE United Kingdom
| | - Chiraphon Chaibundit
- Department of Materials Science and Technology, Faculty of Science; Prince of Songkla University; Hat Yai, Songkhla 90110 Thailand
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238
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Ray SS, Chen SS, Chang HM, Dan Thanh CN, Quang Le H, Nguyen NC. Enhanced desalination using a three-layer OTMS based superhydrophobic membrane for a membrane distillation process. RSC Adv 2018; 8:9640-9650. [PMID: 35540818 PMCID: PMC9078671 DOI: 10.1039/c8ra01043a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 02/28/2018] [Indexed: 11/21/2022] Open
Abstract
Superhydrophobic membranes are essential for enhanced desalination by utilizing MD.
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Affiliation(s)
- Saikat Sinha Ray
- Institute of Environmental Engineering and Management
- National Taipei University of Technology
- Taipei-10608
- Taiwan
| | - Shiao-Shing Chen
- Institute of Environmental Engineering and Management
- National Taipei University of Technology
- Taipei-10608
- Taiwan
| | - Hau-Ming Chang
- Institute of Environmental Engineering and Management
- National Taipei University of Technology
- Taipei-10608
- Taiwan
| | - Cao Ngoc Dan Thanh
- Institute of Environmental Engineering and Management
- National Taipei University of Technology
- Taipei-10608
- Taiwan
| | - Huy Quang Le
- Institute of Environmental Engineering and Management
- National Taipei University of Technology
- Taipei-10608
- Taiwan
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239
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Schubert J, Chanana M. Coating Matters: Review on Colloidal Stability of Nanoparticles with Biocompatible Coatings in Biological Media, Living Cells and Organisms. Curr Med Chem 2018; 25:4553-4586. [PMID: 29852857 PMCID: PMC7040520 DOI: 10.2174/0929867325666180601101859] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/13/2018] [Accepted: 04/18/2018] [Indexed: 12/21/2022]
Abstract
Within the last two decades, the field of nanomedicine has not developed as successfully as has widely been hoped for. The main reason for this is the immense complexity of the biological systems, including the physico-chemical properties of the biological fluids as well as the biochemistry and the physiology of living systems. The nanoparticles' physicochemical properties are also highly important. These differ profoundly from those of freshly synthesized particles when applied in biological/living systems as recent research in this field reveals. The physico-chemical properties of nanoparticles are predefined by their structural and functional design (core and coating material) and are highly affected by their interaction with the environment (temperature, pH, salt, proteins, cells). Since the coating material is the first part of the particle to come in contact with the environment, it does not only provide biocompatibility, but also defines the behavior (e.g. colloidal stability) and the fate (degradation, excretion, accumulation) of nanoparticles in the living systems. Hence, the coating matters, particularly for a nanoparticle system for biomedical applications, which has to fulfill its task in the complex environment of biological fluids, cells and organisms. In this review, we evaluate the performance of different coating materials for nanoparticles concerning their ability to provide colloidal stability in biological media and living systems.
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Affiliation(s)
- Jonas Schubert
- Address correspondence to these authors at the Department of Nanostructured Materials, Leibniz-Institut für Polymerforschung Dresden, Dresden, Germany and Department of Physical Chemistry II, University of Bayreuth, 95447 Bayreuth, Germany;E-mails: ;
| | - Munish Chanana
- Address correspondence to these authors at the Department of Nanostructured Materials, Leibniz-Institut für Polymerforschung Dresden, Dresden, Germany and Department of Physical Chemistry II, University of Bayreuth, 95447 Bayreuth, Germany;E-mails: ;
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240
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Işıklan N, Kazan H. Thermoresponsive and biocompatible poly(vinyl alcohol)-graft-poly(N,N-diethylacrylamide) copolymer: Microwave-assisted synthesis, characterization, and swelling behavior. J Appl Polym Sci 2017. [DOI: 10.1002/app.45969] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Nuran Işıklan
- Department of Chemistry, Faculty of Arts and Sciences; Kırıkkale University; Yahşihan 71450 Kırıkkale Turkey
| | - Hacer Kazan
- Department of Chemistry, Faculty of Arts and Sciences; Kırıkkale University; Yahşihan 71450 Kırıkkale Turkey
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241
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Saheeda P, Sabira K, Dhaneesha M, Jayaleksmi S. Investigation on the pH-independent photoluminescence emission from carbon dots impregnated on polymer matrix. LUMINESCENCE 2017; 33:22-28. [PMID: 28714204 DOI: 10.1002/bio.3367] [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: 12/13/2016] [Revised: 04/08/2017] [Accepted: 05/18/2017] [Indexed: 11/10/2022]
Abstract
Highly luminescent, polymer nanocomposite films based on poly(vinyl alcohol) (PVA), and monodispersed carbon dots (C-dots) derived from multiwalled carbon nanotubes (MWCNTs), as coatings on substrates as well as free standing ones are obtained via solution-based techniques. The synthesized films exhibit pH-independent photoluminescence (PL) emission, which is an advantageous property compared with the pH-dependent photoluminescence intensity variations, generally observed for the C-dots dispersed in aqueous solution. The synthesized C-dots and the nanocomposite films are characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infra-red spectroscopy (FTIR), ultraviolet (UV) - visible spectroscopy and photoluminescence spectroscopy (PL) techniques. The TEM image provides clear evidence for the formation of C-dots of almost uniform shape and average size of about 8 nm, homogeneously dispersed in aqueous medium. The strong anchoring of C-dots within the polymer matrix can be confirmed from the XRD results. The FTIR spectral studies conclusively establish the presence of oxygen functional groups on the surfaces of the C-dots. The photoluminescence (PL) emission spectra of the nanocomposite films are broad, covering most part of the visible region. The PL spectra do not show any luminescence intensity variations, when the pH of the medium is changed from 1 to 11. The pH-independent luminescence, shown by these films offers ample scope for using them as coatings for designing diagnostic and imaging tools in bio medical applications. The non-toxic nature of these nanocomposite films has been established on the basis of cytotoxicity studies.
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Affiliation(s)
- Pichan Saheeda
- Division for Research in Advanced Materials, Department of Physics, Cochin University of Science and Technology, Cochin, Kerala, India
| | - Kaviladath Sabira
- Division for Research in Advanced Materials, Department of Physics, Cochin University of Science and Technology, Cochin, Kerala, India
| | - Mohandas Dhaneesha
- National Centre for Aquatic Animal Health, Cochin University of Science and Technology, Cochin, Kerala, India
| | - Sankaran Jayaleksmi
- Division for Research in Advanced Materials, Department of Physics, Cochin University of Science and Technology, Cochin, Kerala, India
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242
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Jose J, Al-Harthi MA. Citric acid crosslinking of poly(vinyl alcohol)/starch/graphene nanocomposites for superior properties. IRANIAN POLYMER JOURNAL 2017. [DOI: 10.1007/s13726-017-0542-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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243
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Wu Z, Li L, Mu Y, Wan X. Synthesis and Adhesive Property Study of a Mussel-Inspired Adhesive Based on Poly(vinyl alcohol) Backbone. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700206] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zelin Wu
- School of Materials Science and Engineering; Wuhan Institute of Technology; Wuhan 430073 P. R. China
- The Key Laboratory of Bio-Based Materials; Qingdao Institute of Bioenergy and Bioprocess Technology; Chinese Academy of Sciences; Qingdao 266101 China
| | - Liang Li
- School of Materials Science and Engineering; Wuhan Institute of Technology; Wuhan 430073 P. R. China
| | - Youbing Mu
- The Key Laboratory of Bio-Based Materials; Qingdao Institute of Bioenergy and Bioprocess Technology; Chinese Academy of Sciences; Qingdao 266101 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Xiaobo Wan
- The Key Laboratory of Bio-Based Materials; Qingdao Institute of Bioenergy and Bioprocess Technology; Chinese Academy of Sciences; Qingdao 266101 China
- University of Chinese Academy of Sciences; Beijing 100049 China
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244
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Gaaz TS, Kadhum AAH, Michael PKA, Al-Amiery AA, Sulong AB, Nassir MH, Jaaz AH. Unique Halloysite Nanotubes⁻Polyvinyl Alcohol⁻Polyvinylpyrrolidone Composite Complemented with Physico⁻Chemical Characterization. Polymers (Basel) 2017; 9:polym9060207. [PMID: 30970887 PMCID: PMC6431940 DOI: 10.3390/polym9060207] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 05/27/2017] [Accepted: 05/30/2017] [Indexed: 11/18/2022] Open
Abstract
A halloysite nanotubes–polyvinyl alcohol–polyvinylpyrrolidone (HNTs–PVA–PVP) composite has been investigated for a quite long time aiming at improving the physico–chemical characterization of HNTs. In this work, HNTs–PVA–PVP composite were prepared based on a unique procedure characterized by crosslinking two polymers with HNTs. The composite of two polymers were modified by treating HNTs with phosphoric acid (H3PO4) and by using malonic acid (MA) as a crosslinker. The composite was also treated by adding the dispersion agent sodium dodecyl sulfate (SDS). The HNTs–PVA–PVP composite shows better characteristics regarding agglomeration when HNTs is treated in advance by H3PO4. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), brunauer–emmett–teller (BET), size distribution, and atomic force microscopy (AFM) are used to characterize the physio-chemical properties of the composite. FTIR shows additional peaks at 2924.29, 1455.7, and 682.4 cm−1 compared to the neat HNTs due to adding MA. Despite that, the XRD spectra do not show a significant difference, the decrease in peak intensity could be attributed to the addition of semi-crystalline PVA and the amorphous PVP. The images taken by TEM and FESEM show the possible effects of MA on the morphology and internal feature of HNTs–PVA–PVP composite treated by MA by showing the deformation of the matrix. The BET surface area increased to 121.1 m2/g compared to the neat HNTs at 59.1 m2/g. This result, the second highest recorded result, is considered a breakthrough in enhancing the properties of HNTs–PVA–PVP composite, and treatment by MA crosslinking may attribute to the size and the number of the pores. The results from these techniques clearly showed that a significant change has occurred for treated HNTs–PVA–PVP composite where MA was added. The characterization of HNTs–PVA–PVP composite with and without treating HNTs and using crosslinker may lead to a better understanding of this new composites as a precursor to possible applications in the dentistry field.
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Affiliation(s)
- Tayser Sumer Gaaz
- Department of Mechanical & Materials Engineering, Faculty of Engineering & Built Environment, University Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
- Department of Machinery Equipment Engineering Techniques, Technical College Al-Musaib, Al-Furat Al-Awsat Technical University, Al-Musaib, Babil 51009, Iraq.
| | - Abdul Amir H Kadhum
- Department of Chemical & Process Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
| | - Patina Kiah Anak Michael
- Department of Chemical & Process Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
| | - Ahmed A Al-Amiery
- Energy and Renewable Energies Technology Centre, University of Technology, Baghdad 10001, Iraq.
| | - Abu Bakar Sulong
- Department of Mechanical & Materials Engineering, Faculty of Engineering & Built Environment, University Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
| | - Mohamed H Nassir
- Program of Chemical Engineering, Taylor's University-Lakeside Campus, Subang Jaya, Selangor 47500, Malaysia.
| | - Ahed Hameed Jaaz
- Solar Energy Research Institute (SERI), Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
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245
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Rahoui N, Jiang B, Taloub N, Huang YD. Spatio-temporal control strategy of drug delivery systems based nano structures. J Control Release 2017; 255:176-201. [DOI: 10.1016/j.jconrel.2017.04.003] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 03/30/2017] [Accepted: 04/03/2017] [Indexed: 12/21/2022]
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246
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Gaaz TS, Sulong AB, Kadhum AAH, Al-Amiery AA, Nassir MH, Jaaz AH. The Impact of Halloysite on the Thermo-Mechanical Properties of Polymer Composites. Molecules 2017; 22:E838. [PMID: 28531126 PMCID: PMC6154593 DOI: 10.3390/molecules22050838] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 05/10/2017] [Accepted: 05/15/2017] [Indexed: 12/02/2022] Open
Abstract
Nanotubular clay minerals, composed of aluminosilicate naturally structured in layers known as halloysite nanotubes (HNTs), have a significant reinforcing impact on polymer matrixes. HNTs have broad applications in biomedical applications, the medicine sector, implant alloys with corrosion protection and manipulated transportation of medicines. In polymer engineering, different research studies utilize HNTs that exhibit a beneficial enhancement in the properties of polymer-based nanocomposites. The dispersion of HNTs is improved as a result of pre-treating HNTs with acids. The HNTs' percentage additive up to 7% shows the highest improvement of tensile strength. The degradation of the polymer can be also significantly improved by doping a low percentage of HNTs. Both the mechanical and thermal properties of polymers were remarkably improved when mixed with HNTs. The effects of HNTs on the mechanical and thermal properties of polymers, such as ultimate strength, elastic modulus, impact strength and thermal stability, are emphasized in this study.
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Affiliation(s)
- Tayser Sumer Gaaz
- Department of Mechanical & Materials Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
- Department of Machinery Equipment Engineering Techniques, Technical College Al-Musaib, Al-Furat Al-Awsat Technical University, Al-Musaib, Babil 51009, Iraq.
| | - Abu Bakar Sulong
- Department of Mechanical & Materials Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
| | - Abdul Amir H Kadhum
- Department of Chemical & Process Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
| | - Ahmed A Al-Amiery
- Department of Chemical & Process Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
| | - Mohamed H Nassir
- Program of Chemical Engineering, Taylor's University-Lakeside Campus, Subang Jaya, Selangor 47500, Malaysia.
| | - Ahed Hameed Jaaz
- Solar Energy Research Institute (SERI), Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
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247
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Salaoru I, Zhou Z, Morris P, Gibbons GJ. Inkjet-printed Polyvinyl Alcohol Multilayers. J Vis Exp 2017. [PMID: 28518077 DOI: 10.3791/55093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Inkjet printing is a modern method for polymer processing, and in this work, we demonstrate that this technology is capable of producing polyvinyl alcohol (PVOH) multilayer structures. A polyvinyl alcohol aqueous solution was formulated. The intrinsic properties of the ink, such as surface tension, viscosity, pH, and time stability, were investigated. The PVOH-based ink was a neutral solution (pH 6.7) with a surface tension of 39.3 mN/m and a viscosity of 7.5 cP. The ink displayed pseudoplastic (non-Newtonian shear thinning) behavior at low shear rates, and overall, it demonstrated good time stability. The wettability of the ink on different substrates was investigated, and glass was identified as the most suitable substrate in this particular case. A proprietary 3D inkjet printer was employed to manufacture polymer multilayer structures. The morphology, surface profile, and thickness uniformity of inkjet-printed multilayers were evaluated via optical microscopy.
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Affiliation(s)
- Iulia Salaoru
- Emerging Technologies Research Centre (EMTERC), De Montfort University; WMG, University of Warwick;
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248
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249
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Poller AM, Spieker E, Lieberzeit PA, Preininger C. Surface Imprints: Advantageous Application of Ready2use Materials for Bacterial Quartz-Crystal Microbalance Sensors. ACS APPLIED MATERIALS & INTERFACES 2017; 9:1129-1135. [PMID: 27936575 DOI: 10.1021/acsami.6b13888] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Four different materials (two ab initio synthesized polyurethanes; ready-to-use: Epon1002F and poly(vinyl alcohol)/N-methyl-4(4'-formylstyryl)pyridinium methosulfate acetal) for the generation of Escherichia coli surface imprints are compared in this work. The use of commercially available, ready-to-use materials instead of self-synthesized polymers represents an innovative and convenient way of molecular imprint fabrication. This was herein investigated for large, biological templates. Fully synthesized imprint materials (polyurethanes) were developed and optimized regarding their OH excess and the use of catalyst in the polymerization reaction. No to low OH excess (0-10%) and a noncatalyzed synthesis were determined to be superior for the imprinting of the Gram-negative bacteria. Imprints were characterized using atomic force microscopy, with Epon1002F yielding the most distinguished imprints, along with a smooth surface. The imprints were afterward tested as plastic antibody coatings in a mass-sensitive quartz-crystal microbalance measurement. Dilutions of E. coli suspensions, down to a limit of detection of 1.4 × 107 CFU/mL, were successfully measured. Best results were obtained with Epon1002F and self-synthesized, stoichiometric polyurethane. Since ready-to-use Epon1002F was superior in terms of signal intensities and sensitivity, it can advantageously replace self-synthesized polymers for the generation of imprinted sensor surfaces. Easy day-to-day reproducibility and further shortening of imprint fabrication time are other advantages of employing the ready-to-use material instead of conventionally synthesized polymers.
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Affiliation(s)
- Anna-Maria Poller
- AIT - Austrian Institute of Technology, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria
| | - Eva Spieker
- Department of Physical Chemistry, Faculty for Chemistry, University of Vienna , Währinger Straße 42, 1090 Wien, Austria
| | - Peter A Lieberzeit
- Department of Physical Chemistry, Faculty for Chemistry, University of Vienna , Währinger Straße 42, 1090 Wien, Austria
| | - Claudia Preininger
- AIT - Austrian Institute of Technology, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria
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250
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Vy Phan TT, Bharathiraja S, Nguyen VT, Moorthy MS, Manivasagan P, Lee KD, Oh J. Polypyrrole–methylene blue nanoparticles as a single multifunctional nanoplatform for near-infrared photo-induced therapy and photoacoustic imaging. RSC Adv 2017. [DOI: 10.1039/c7ra02140b] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel contrast agent with broad NIR absorbing properties for combined photo-induced therapy and photoacoustic imaging.
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Affiliation(s)
- Thi Tuong Vy Phan
- Marine-Integrated Bionics Research Center
- Pukyong National University
- Busan 48513
- Republic of Korea
- Interdisciplinary Program of Biomedical Mechanical & Electrical Engineering
| | | | - Van Tu Nguyen
- Marine-Integrated Bionics Research Center
- Pukyong National University
- Busan 48513
- Republic of Korea
- Interdisciplinary Program of Biomedical Mechanical & Electrical Engineering
| | - Madhappan Santha Moorthy
- Marine-Integrated Bionics Research Center
- Pukyong National University
- Busan 48513
- Republic of Korea
| | - Panchanathan Manivasagan
- Marine-Integrated Bionics Research Center
- Pukyong National University
- Busan 48513
- Republic of Korea
| | - Kang Dae Lee
- Department of Otolaryngology – Head and Neck Surgery
- Kosin University
- College of Medicine
- Busan 48513
- Republic of Korea
| | - Junghwan Oh
- Marine-Integrated Bionics Research Center
- Pukyong National University
- Busan 48513
- Republic of Korea
- Department of Biomedical Engineering
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