251
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Käfer F, Lerch A, Agarwal S. Tunable, concentration-independent, sharp, hysteresis-free UCST phase transition from poly(N-acryloyl glycinamide-acrylonitrile) system. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28374] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Florian Käfer
- Macromolecular Chemistry II, University of Bayreuth; Bayreuth 95440 Germany
| | - Arne Lerch
- Physical Chemistry I, University of Bayreuth; Bayreuth 95440 Germany
| | - Seema Agarwal
- Macromolecular Chemistry II, University of Bayreuth; Bayreuth 95440 Germany
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252
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Ge P, Sheng F, Jin Y, Tong L, Du L, Zhang L, Tian N, Li G. Magnetic resonance imaging of osteosarcoma using a bis(alendronate)-based bone-targeted contrast agent. Biomed Pharmacother 2016; 84:423-429. [PMID: 27682736 DOI: 10.1016/j.biopha.2016.09.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Revised: 09/16/2016] [Accepted: 09/16/2016] [Indexed: 11/16/2022] Open
Abstract
Magnetic resonance (MR) is currently used for diagnosis of osteosarcoma but not well even though contrast agents are administered. Here, we report a novel bone-targeted MR imaging contrast agent, Gd2-diethylenetriaminepentaacetate-bis(alendronate) (Gd2-DTPA-BA) for the diagnosis of osteosarcoma. It is the conjugate of a bone cell-seeking molecule (i.e., alendronate) and an MR imaging contrast agent (i.e., Gd-DTPA). Its physicochemical parameters were measured, including pKa, complex constant, and T1 relaxivity. Its bone cell-seeking ability was evaluated by measuring its adsorption on hydroxyapatite. Hemolysis was investigated. MR imaging and biodistribution of Gd2-DTPA-BA and Gd-DTPA were studied on healthy and osteosarcoma-bearing nude mice. Gd2-DTPA-BA showed high adsorption on hydroxyapatite, the high MR relaxivity (r1) of 7.613mM-1s-1 (2.6 folds of Gd-DTPA), and no hemolysis. The MR contrast effect of Gd2-DTPA-BA was much higher than that of Gd-DTPA after intravenous injection to the mice. More importantly, the MR imaging of osteosarcoma was significantly improved by Gd2-DTPA-BA. The signal intensity of Gd2-DTPA-BA reached 120.3% at 50min, equal to three folds of Gd-DTPA. The bone targeting index (bone/blood) of Gd2-DTPA-BA in the osteosarcoma-bearing mice was very high to 130 at 180min. Furthermore, the contrast enhancement could also be found in the lung due to metastasis of osteosarcoma. Gd2-DTPA-BA plays a promising role in the diagnoses of osteosacomas, including the primary bone tumors and metastases.
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Affiliation(s)
- Pingju Ge
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 27 Taiping Road, Beijing 100850, China; Pharmaceutical College of Henan University, Kaifeng 475004, China
| | - Fugeng Sheng
- Department of Radiology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing 100071, China
| | - Yiguang Jin
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 27 Taiping Road, Beijing 100850, China; Pharmaceutical College of Henan University, Kaifeng 475004, China.
| | - Li Tong
- College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Lina Du
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 27 Taiping Road, Beijing 100850, China
| | - Lei Zhang
- Department of Radiology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing 100071, China
| | - Ning Tian
- Department of Radiology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing 100071, China
| | - Gongjie Li
- Department of Radiology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing 100071, China.
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253
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Stoychev GV, Ionov L. Actuating Fibers: Design and Applications. ACS APPLIED MATERIALS & INTERFACES 2016; 8:24281-24294. [PMID: 27571481 DOI: 10.1021/acsami.6b07374] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Actuators are devices capable of moving or controlling objects and systems by applying mechanical force on them. Among all kinds of actuators with different shapes, fibrous ones deserve particular attention. In spite of their apparent simplicity, actuating fibers allow for very complex actuation behavior. This review discusses different approaches for the design of actuating fibers, and their advantages and disadvantages. We also discuss the prospects for the design of fibers with advanced architectures and complex actuation behavior.
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Affiliation(s)
- Georgi V Stoychev
- College of Engineering, College of Family and Consumer Sciences, University of Georgia , Athens, Georgia 30602, United States
| | - Leonid Ionov
- College of Engineering, College of Family and Consumer Sciences, University of Georgia , Athens, Georgia 30602, United States
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254
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Karolewicz B. A review of polymers as multifunctional excipients in drug dosage form technology. Saudi Pharm J 2016; 24:525-536. [PMID: 27752224 PMCID: PMC5059828 DOI: 10.1016/j.jsps.2015.02.025] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 02/28/2015] [Indexed: 12/13/2022] Open
Abstract
In the article, groups of multifunctional polymers used in drug dosage form technology were classified and evaluated. These compounds, in addition to their basic function as excipients, may have additional properties, e.g. stimuli sensitivity, enzyme inhibition, intestinal epithelium penetration enhancement, efflux pump inhibition, taste-masking, pharmacological activity and the ability to interact with enzymes responsible for drug metabolism. While classifying specific groups of multifunctional polymers, special emphasis was placed on the advantages of using them when designing new drug. Such advantages include, i.a., increasing substance bioavailability, improving substance stability during formulation and the possibility of obtaining forms of controlled or localized release to a specific site in the organism.
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Affiliation(s)
- Bożena Karolewicz
- Department of Drug Form Technology, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
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255
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Pinto IC, Cerqueira-Coutinho CS, Santos EP, Carmo FA, Ricci-Junior E. Development and characterization of repellent formulations based on nanostructured hydrogels. Drug Dev Ind Pharm 2016; 43:67-73. [PMID: 27483992 DOI: 10.1080/03639045.2016.1220564] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Diseases caused by insects could lead to epidemic scenarios in urban areas and insect repellents are a shield against a wide range of insects, but they need to be safe without compromising efficacy. Ethyl butylacetylaminopropionate (EB) is a synthetic mosquito repellent, which could be used in products for adults and children due to its low-allergenic potential. The aim of this study was to develop and characterize EB and Poloxamer 407 nanoemulsions regarding their droplets mean size, pH, rheological properties, cytotoxicity and in vitro permeation profile. The developed formulations (F1 with 12.5% of EB and F2 with 25% of EB) were compared with a commercial formulation containing 12.5% of EB. Droplets mean size was determined by DLS, and for both nanoemulsions they were around 200 nm; however, the commercial formulation presented a droplets mean size of 10 nm, which could contribute to its high permeation. F1 and F2 presented a gel-like behavior, however F2 presented lower viscosity due to the presence of more EB between the polymer chains preventing them to interact with each other. Also, F2 was less retained by the epidermis when compared to F1 probably due to its lower viscosity. For the cytotoxicity assay only F2, which presented the highest concentration of EB was tested, and it was not toxic to the cells. This result could be also extended to F1 which presented half the EB concentration. The present study demonstrated that EB and Poloxamer 407 nanoemulsions are promising as new insect-repellent formulations.
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Affiliation(s)
- Isadora C Pinto
- a College of Pharmacy , Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | | | | | - Flavia A Carmo
- a College of Pharmacy , Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Eduardo Ricci-Junior
- a College of Pharmacy , Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
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256
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Thota CK, Yadav N, Chauhan VS. "A novel highly stable and injectable hydrogel based on a conformationally restricted ultrashort peptide". Sci Rep 2016; 6:31167. [PMID: 27507432 PMCID: PMC4979021 DOI: 10.1038/srep31167] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 07/13/2016] [Indexed: 11/09/2022] Open
Abstract
Nanostructures including hydrogels based on peptides containing non protein amino acids are being considered as platform for drug delivery because of their inherent biocompatibility and additional proteolytic stability. Here we describe instantaneous self-assembly of a conformationally restricted dipeptide, LeuΔPhe, containing an α,β-dehydrophenylalanine residue into a highly stable and mechanically strong hydrogel, under mild physiological aqueous conditions. The gel successfully entrapped several hydrophobic and hydrophilic drug molecules and released them in a controlled manner. LeuΔPhe was highly biocompatible and easily injectable. Administration of an antineoplastic drug entrapped in the gel in tumor bearing mice significantly controlled growth of tumors. These characteristics make LeuΔPhe an attractive candidate for further development as a delivery platform for various biomedical applications.
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Affiliation(s)
- Chaitanya Kumar Thota
- International Centre for Genetic Engineering &Biotechnology Aruna Asaf Ali Marg, New Delhi-110067, India
| | - Nitin Yadav
- International Centre for Genetic Engineering &Biotechnology Aruna Asaf Ali Marg, New Delhi-110067, India
| | - Virander Singh Chauhan
- International Centre for Genetic Engineering &Biotechnology Aruna Asaf Ali Marg, New Delhi-110067, India
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257
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Sridharan B, Ganesh RN, Viswanathan P. Polyacrylic acid attenuates ethylene glycol induced hyperoxaluric damage and prevents crystal aggregation in vitro and in vivo. Chem Biol Interact 2016; 252:36-46. [PMID: 27018375 DOI: 10.1016/j.cbi.2016.03.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Revised: 03/04/2016] [Accepted: 03/20/2016] [Indexed: 02/05/2023]
Abstract
The study explores calcium oxalate crystal inhibiting characteristic of polyacrylic acid (pAA), an anionic polymer in in vitro and in vivo. Animals were divided into 5 groups where group 1 served as control, group 2 were made hyperoxaluric by supplementing with Ethylene glycol (EG) 0.75% (v/v) for 30 days. Group 3, 4 & 5 were also given with EG and treated simultaneously with 2.5, 5 & 10 mg of pAA/kg of body weight, respectively. Urine, serum and tissue analyses along with histological studies were performed at the end of the 30 days study. In vitro crystallization was significantly inhibited by pAA and further it was supported by particle size analyses, XRD and FT-IR studies. Toxicological analyses showed that pAA was safe to use in animals at concentrations below 100 mg/kg BW. In vivo anti-urolithic study showed significant improvement in urinary lithogenic factors (calcium, oxalate, phosphate, citrate & magnesium) and renal function parameters (creatinine, urea and protein). Tissue analyses on anti-oxidant enzyme activity and lipid peroxides showed maintenance of tissue antioxidant status in the pAA supplemented rats and histological studies demonstrated the nephroprotection offered by pAA and were concurrent to the biochemical analyses. Supplementation of pAA not only reduces the crystal aggregation but also regulates the expression and localization of crystal inhibiting proteins and gene expression of inflammatory cytokines in experimental animals. In summary, pAA is a potent anti-urolithic agent in rats and we can propose that 10 mg/kg body weight is the effective dosage of pAA and this concentration can be used for further studies.
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Affiliation(s)
- Badrinathan Sridharan
- Renal Research Lab, Centre for Biomedical Research, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu, India
| | - Rajesh Nachiappa Ganesh
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Dhanvantri Nagar, Puducherry, India
| | - Pragasam Viswanathan
- Renal Research Lab, Centre for Biomedical Research, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu, India.
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258
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Opoku-Damoah Y, Wang R, Zhou J, Ding Y. Versatile Nanosystem-Based Cancer Theranostics: Design Inspiration and Predetermined Routing. Theranostics 2016; 6:986-1003. [PMID: 27217832 PMCID: PMC4876623 DOI: 10.7150/thno.14860] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 03/24/2016] [Indexed: 01/10/2023] Open
Abstract
The relevance of personalized medicine, aimed at a more individualized drug therapy, has inspired research into nano-based concerted diagnosis and therapeutics (theranostics). As the intention is to "kill two birds with one stone", scientists have already described the emerging concept as a treasured tailor for the future of cancer therapy, wherein the main idea is to design "smart" nanosystems to concurrently discharge both therapeutic and diagnostic roles. These nanosystems are expected to offer a relatively clearer view of the ingenious cellular trafficking pathway, in-situ diagnosis, and therapeutic efficacy. We herein present a detailed review of versatile nanosystems, with prominent examples of recently developed intelligent delivery strategies which have gained attention in the field of theranostics. These nanotheranostics include various mechanisms programmed in novel platforms to enable predetermined delivery of cargo to specific sites, as well as techniques to overcome the notable challenges involved in the efficacy of theranostics.
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Affiliation(s)
| | | | - Jianping Zhou
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Yang Ding
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
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259
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du Toit LC, Choonara YE, Kumar P, Pillay V. Polymeric networks for controlled release of drugs: a patent review. Expert Opin Ther Pat 2016; 26:703-17. [DOI: 10.1080/13543776.2016.1178720] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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260
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Zhang P, Hu C, Ran W, Meng J, Yin Q, Li Y. Recent Progress in Light-Triggered Nanotheranostics for Cancer Treatment. Theranostics 2016; 6:948-68. [PMID: 27217830 PMCID: PMC4876621 DOI: 10.7150/thno.15217] [Citation(s) in RCA: 145] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Accepted: 03/24/2016] [Indexed: 12/11/2022] Open
Abstract
Treatments of high specificity are desirable for cancer therapy. Light-triggered nanotheranostics (LTN) mediated cancer therapy could be one such treatment, as they make it possible to visualize and treat the tumor specifically in a light-controlled manner with a single injection. Because of their great potential in cancer therapy, many novel and powerful LTNs have been developed, and are mainly prepared from photosensitizers (PSs) ranging from small organic dyes such as porphyrin- and cyanine-based dyes, semiconducting polymers, to inorganic nanomaterials such as gold nanoparticles, transition metal chalcogenides, carbon nanotubes and graphene. Using LTNs and localized irradiation in combination, complete tumor ablation could be achieved in tumor-bearing animal models without causing significant toxicity. Given their great advances and promising future, we herein review LTNs that have been tested in vivo with a highlight on progress that has been made in the past a couple of years. The current challenges faced by these LTNs are also briefly discussed.
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Affiliation(s)
- Pengcheng Zhang
- 1. State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Chunhua Hu
- 1. State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- 2. Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, China
| | - Wei Ran
- 1. State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- 3. University of Chinese Academy of Sciences (UCAS), Beijing 100049, China
| | - Jia Meng
- 1. State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- 3. University of Chinese Academy of Sciences (UCAS), Beijing 100049, China
| | - Qi Yin
- 1. State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yaping Li
- 1. State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
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261
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Borkowski L, Kiernicka M, Belcarz A, Pałka K, Hajnos M, Ginalska G. Unexpected reaction of new HAp/glucan composite to environmental acidification: Defect or advantage? J Biomed Mater Res B Appl Biomater 2016; 105:1178-1190. [DOI: 10.1002/jbm.b.33646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 02/09/2016] [Accepted: 02/12/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Leszek Borkowski
- Chair and Department of Biochemistry and Biotechnology; Medical University of Lublin; Chodźki 1 20-093 Lublin Poland
| | - Małgorzata Kiernicka
- Chair and Department of Periodontology; Medical University of Lublin; Karmelicka 7 20-081 Lublin Poland
| | - Anna Belcarz
- Chair and Department of Biochemistry and Biotechnology; Medical University of Lublin; Chodźki 1 20-093 Lublin Poland
- Medical Inventi Inc; Witosa 16 20-315 Lublin Poland
| | - Krzysztof Pałka
- Department of Materials Engineering; Lublin University of Technology; Nadbystrzycka 36 20-618 Lublin Poland
| | - Mieczysław Hajnos
- Institute of Agrophysics, Polish Academy of Sciences; Doswiadczalna 4 20-290 Lublin Poland
| | - Grażyna Ginalska
- Chair and Department of Biochemistry and Biotechnology; Medical University of Lublin; Chodźki 1 20-093 Lublin Poland
- Medical Inventi Inc; Witosa 16 20-315 Lublin Poland
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262
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Singh B, Kaur A, Dhiman S, Garg B, Khurana RK, Beg S. QbD-Enabled Development of Novel Stimuli-Responsive Gastroretentive Systems of Acyclovir for Improved Patient Compliance and Biopharmaceutical Performance. AAPS PharmSciTech 2016; 17:454-65. [PMID: 26238805 DOI: 10.1208/s12249-015-0367-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 07/13/2015] [Indexed: 11/30/2022] Open
Abstract
The current studies entail systematic quality by design (QbD)-based development of stimuli-responsive gastroretentive drug delivery systems (GRDDS) of acyclovir using polysaccharide blends for attaining controlled drug release profile and improved patient compliance. The patient-centric quality target product profile was defined and critical quality attributes (CQAs) earmarked. Risk assessment studies, carried out through Ishikawa fish bone diagram and failure mode, effect, and criticality analysis, helped in identifying the plausible risks or failure modes affecting the quality attributes of the drug product. A face-centered cubic design was employed for systematic development and optimization of the concentration of sodium alginate (X 1) and gellan (X 2) as the critical material attributes (CMAs) in the stimuli-responsive formulations, which were evaluated for CQAs viz. viscosity, gel strength, onset of floatation, and drug release characteristics. Mathematical modeling was carried out for generation of design space, and optimum formulation was embarked upon, exhibiting formulation characteristics marked by excellent floatation and bioadhesion characteristics along with promising drug release control up to 24 h. Drug-excipient compatibility studies through FTIR and DSC revealed absence of any interaction(s) among the formulation excipients. In vivo pharmacokinetic studies in Wistar rats corroborated extension in the drug absorption profile from the optimized stimuli-responsive GR formulations vis-à-vis the marketed suspension (ZOVIRAX®). Establishment of in vitro/in vivo correlation (IVIVC) revealed a high degree of correlation between the in vitro and in vivo data. In a nutshell, the present investigations report the successful development of stimuli-responsive GRDDS of acyclovir, which can be applicable as a platform approach for other drugs too.
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263
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Studies on the application of temperature-responsive ion exchange polymers with whey proteins. J Chromatogr A 2016; 1438:113-22. [DOI: 10.1016/j.chroma.2016.02.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 02/04/2016] [Accepted: 02/04/2016] [Indexed: 11/23/2022]
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264
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Ricapito NG, Ghobril C, Zhang H, Grinstaff MW, Putnam D. Synthetic Biomaterials from Metabolically Derived Synthons. Chem Rev 2016; 116:2664-704. [PMID: 26821863 PMCID: PMC5810137 DOI: 10.1021/acs.chemrev.5b00465] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The utility of metabolic synthons as the building blocks for new biomaterials is based on the early application and success of hydroxy acid based polyesters as degradable sutures and controlled drug delivery matrices. The sheer number of potential monomers derived from the metabolome (e.g., lactic acid, dihydroxyacetone, glycerol, fumarate) gives rise to almost limitless biomaterial structural possibilities, functionality, and performance characteristics, as well as opportunities for the synthesis of new polymers. This review describes recent advances in new chemistries, as well as the inventive use of traditional chemistries, toward the design and synthesis of new polymers. Specific polymeric biomaterials can be prepared for use in varied medical applications (e.g., drug delivery, tissue engineering, wound repair, etc.) through judicious selection of the monomer and backbone linkage.
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Affiliation(s)
- Nicole G. Ricapito
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Cynthia Ghobril
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Heng Zhang
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Mark W. Grinstaff
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts 02118, United States
| | - David Putnam
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853, United States
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265
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Mathesan S, Rath A, Ghosh P. Molecular mechanisms in deformation of cross-linked hydrogel nanocomposite. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:157-167. [DOI: 10.1016/j.msec.2015.09.087] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 09/07/2015] [Accepted: 09/23/2015] [Indexed: 11/25/2022]
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266
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Agrawal V, Sinha M. A review on carrier systems for bone morphogenetic protein-2. J Biomed Mater Res B Appl Biomater 2016; 105:904-925. [PMID: 26728994 DOI: 10.1002/jbm.b.33599] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 12/01/2015] [Accepted: 12/03/2015] [Indexed: 01/26/2023]
Abstract
Bone morphogenetic protein-2 (BMP-2) has unique bone regeneration property. The powerful osteoinductive nature makes it considered as second line of therapy in nonunion bone defect. A large number of carriers and delivery systems made up of different materials have been investigated for controlled and sustained release of BMP-2. The delivery systems are in the form of hydrogel, microsphere, nanoparticles, and fibers. The carriers used for the delivery are made up of metals, ceramics, polymers, and composites. Implantation of these protein-loaded carrier leads to cell adhesion, degradation which eventually releases the drug/protein at site specific. But, problems like ectopic growth, lesser protein delivery, inactivation of the protein are reported in the available carrier systems. Therefore, it is need of an hour to modify the available carrier systems as well as explore other biomaterials with desired properties. In this review, all the reported carrier systems made of metals, ceramics, polymers, composites are evaluated in terms of their processing conditions, loading capacity and release pattern of BMP-2. Along with these biomaterials, the attempts of protein modification by adding some functional group to BMP-2 or extracting functional peptides from the protein to achieve the desired effect, is also evaluated. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 904-925, 2017.
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Affiliation(s)
- Vishal Agrawal
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research-Ahmedabad, Ahmedabad-, 380054, India
| | - Mukty Sinha
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research-Ahmedabad, Ahmedabad-, 380054, India
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267
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Modrejewski J, Walter JG, Kretschmer I, Kemal E, Green M, Belhadj H, Blume C, Scheper T. Aptamer-modified polymer nanoparticles for targeted drug delivery. ACTA ACUST UNITED AC 2016. [DOI: 10.1515/bnm-2015-0027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AbstractThe purpose of this study was to develop a model system for targeted drug delivery. This system should enable targeted drug release at a certain tissue in the body. In conventional drug delivery systems, drugs are often delivered unspecifically resulting in unwarranted adverse effects. To circumvent this problem, there is an increasing demand for the development of intelligent drug delivery systems allowing a tissue-specific mode of delivery. Within this study, nanoparticles consisting of two biocompatible polymers are used. Because of their small size, nanoparticles are well-suited for effective drug delivery. The small size affects their movement through cell and tissue barriers. Their cellular uptake is easier when compared to larger drug delivery systems. Paclitaxel was encapsulated into the nanoparticles as a model drug, and to achieve specific targeting an aptamer directed against lung cancer cells was coupled to the nanoparticles surface. Nanoparticles were characterized by dynamic light scattering (DLS), transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FTIR), and nanotracking analysis (NTA). Also their surface charge was characterized from ζ-potential measurements. Their preparation was optimized and subsequently specificity of drug-loaded and aptamer-functionalized nanoparticles was investigated using lung cancer cells.
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268
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269
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Characterization of the Interaction Between Pancreatic Trypsin and an Enteric Copolymer as a Tool for Several Biotechnological Applications. Colloids Surf B Biointerfaces 2015; 136:1217-23. [DOI: 10.1016/j.colsurfb.2015.10.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 10/19/2015] [Accepted: 10/26/2015] [Indexed: 12/14/2022]
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270
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Canillas M, de Lima GG, Rodríguez MA, Nugent MJD, Devine DM. Bioactive composites fabricated by freezing-thawing method for bone regeneration applications. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/polb.23974] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
| | - Gabriel G. de Lima
- Materials Research Institute, Athlone Institute of Technology; Athlone Ireland
| | | | | | - Declan M. Devine
- Materials Research Institute, Athlone Institute of Technology; Athlone Ireland
- Mayo Clinic; Rehabilitation Medicine Centre; Rochester Minnesota
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271
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Nekrasova T, Andreeva L, Nazarova O, Bezrukova M, Zolotova YI, Imanbaev R, Skorbunova O, Pautov V, Panarin E. Structural and dynamic characteristics of thermo- and pH-sensitive copolymers of 2-(diethylamino)ethyl methacrylate and 2-deoxy-2-methacrylamido- -glucose. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.09.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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272
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Taghavikish M, Subianto S, Dutta NK, Choudhury NR. Facile Fabrication of Polymerizable Ionic Liquid Based-Gel Beads via Thiol-ene Chemistry. ACS APPLIED MATERIALS & INTERFACES 2015; 7:17298-306. [PMID: 26171715 DOI: 10.1021/acsami.5b04405] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Multipurpose gel beads prepared from natural or synthetic polymers have received significant attention in various applications such as drug delivery, coatings, and electrolytes because of their versatility and unique performance as micro- and nanocontainers.1 However, comparatively little work has been done on poly(ionic liquid)-based materials despite their unique ionic characteristics. Thus, in this contribution we report the facile preparation of polymerizable ionic liquid-based gel beads using thiol-ene click chemistry. This novel system incorporates pentaerythritol tetra (3-mercaptopropionate) (PETKMP) and 1,4-di(vinylimidazolium) butane bisbromide in a thiol-ene-based photopolymerization to fabricate the gel beads. Their chemical structure, thermal and mechanical properties have been investigated using Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and dynamic mechanical analysis (DMA). The gel beads possess low Tg and their ionic functionalities attribute self-healing properties and their ability to uptake small molecules or organic compounds offers their potential use as pH sensing material and macrocontainers.
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Affiliation(s)
- Mona Taghavikish
- Ian Wark Research Institute, Mawson Lakes Campus, University of South Australia, Mawson Lakes, Adelaide, South Australia 5095, Australia
| | - Surya Subianto
- Ian Wark Research Institute, Mawson Lakes Campus, University of South Australia, Mawson Lakes, Adelaide, South Australia 5095, Australia
| | - Naba Kumar Dutta
- Ian Wark Research Institute, Mawson Lakes Campus, University of South Australia, Mawson Lakes, Adelaide, South Australia 5095, Australia
| | - Namita Roy Choudhury
- Ian Wark Research Institute, Mawson Lakes Campus, University of South Australia, Mawson Lakes, Adelaide, South Australia 5095, Australia
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273
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González-Ayón MA, Sañudo-Barajas JA, Picos-Corrales LA, Licea-Claverie A. PNVCL-PEGMA nanohydrogels with tailored transition temperature for controlled delivery of 5-fluorouracil. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27766] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mirian A. González-Ayón
- Centro de Investigación en Alimentación y Desarrollo A. C; Unidad Culiacán, A.P. 32-A 80110 Culiacán Sinaloa México
| | - J. Adriana Sañudo-Barajas
- Centro de Investigación en Alimentación y Desarrollo A. C; Unidad Culiacán, A.P. 32-A 80110 Culiacán Sinaloa México
| | - Lorenzo A. Picos-Corrales
- Universidad Autónoma de Sinaloa, Facultad de Ciencias Químico Biológicas, Ciudad Universitaria; 80013 Culiacán Sinaloa México
| | - Angel Licea-Claverie
- Instituto Tecnológico de Tijuana, Centro de Graduados e Investigación en Química; A.P. 1166 22000 Tijuana B.C. México
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274
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Various Magnetic Properties of Magnetite Nanoparticles Synthesized from Iron-Sands by Coprecipitation Method at Room Temperature. ACTA ACUST UNITED AC 2015. [DOI: 10.4028/www.scientific.net/msf.827.229] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Natural sand-based magnetite nanoparticles have been succesfully synthesized by coprecipitation method at room temperature. Magnetite nanoparticles were investigated by X-ray Diffractometer (XRD) and Vibrating Sample Magnetometer (VSM). The morphology of magnetite nanoparticles has been evaluated by Transmission Electron Microscopy (TEM). Qualitative analysis of XRD data reveals that the structure of magnetite nanoparticles have the same phase of ICSD No. 82237. On the other hand, quantitative analysis shows that the crystallite size of magnetite nanoparticles have ranges between 8.89 nm to 12.49 nm. The average diameter of magnetite nanoparticles increase with the increase the stirring rate of reaction when the stirring rate is lower than 1000 rpm, while the crystallite size of magnetite particles decrease with the increase the stirring rate when the stirring rate is higher than 1000 rpm. The stirring rate of reaction influence the the magnetic properties of magnetite nanoparticles. The results of the best magnetic respon are revealed for the stirring rate of 1000 rpm with the larger the crystallite size of magnetite nanoparticles due to its stronger saturation magnetization.
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275
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de Lima GG, Campos L, Junqueira A, Devine DM, Nugent MJD. A novel pH-sensitive ceramic-hydrogel for biomedical applications. POLYM ADVAN TECHNOL 2015. [DOI: 10.1002/pat.3593] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Gabriel Goetten de Lima
- Athlone Institue of Technology; Materials Research Institute; Dublin Road, Co. Westmeath Athlone Ireland
| | - Lucas Campos
- Athlone Institue of Technology; Materials Research Institute; Dublin Road, Co. Westmeath Athlone Ireland
| | - Amanda Junqueira
- Athlone Institue of Technology; Materials Research Institute; Dublin Road, Co. Westmeath Athlone Ireland
| | - Declan M. Devine
- Athlone Institue of Technology; Materials Research Institute; Dublin Road, Co. Westmeath Athlone Ireland
- The Mayo Clinic; Rochester MN USA
| | - Michael J. D. Nugent
- Athlone Institue of Technology; Materials Research Institute; Dublin Road, Co. Westmeath Athlone Ireland
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276
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García-Astrain C, Chen C, Burón M, Palomares T, Eceiza A, Fruk L, Corcuera MÁ, Gabilondo N. Biocompatible Hydrogel Nanocomposite with Covalently Embedded Silver Nanoparticles. Biomacromolecules 2015; 16:1301-10. [DOI: 10.1021/acs.biomac.5b00101] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Clara García-Astrain
- Materials
+ Technologies Group, Department of Chemical and Environmental Engineering,
Polytechnic School, University of the Basque Country, Plaza Europa
1, 20018 San Sebastián, Spain
| | - Cheng Chen
- DGF-Centre
for Functional Nanostructures, Karlsruhe Institute of Technology (KIT), Wofgang Gaede Str. 1a, 76131 Karlsruhe, Germany
| | - María Burón
- Faculty
of Medicine and Dentistry, University of the Basque Country, Barrio
Sarriena s/n, 48940 Leioa, Spain
| | - Teodoro Palomares
- Faculty
of Medicine and Dentistry, University of the Basque Country, Barrio
Sarriena s/n, 48940 Leioa, Spain
| | - Arantxa Eceiza
- Materials
+ Technologies Group, Department of Chemical and Environmental Engineering,
Polytechnic School, University of the Basque Country, Plaza Europa
1, 20018 San Sebastián, Spain
| | - Ljiljana Fruk
- DGF-Centre
for Functional Nanostructures, Karlsruhe Institute of Technology (KIT), Wofgang Gaede Str. 1a, 76131 Karlsruhe, Germany
| | - M. Ángeles Corcuera
- Materials
+ Technologies Group, Department of Chemical and Environmental Engineering,
Polytechnic School, University of the Basque Country, Plaza Europa
1, 20018 San Sebastián, Spain
| | - Nagore Gabilondo
- Materials
+ Technologies Group, Department of Chemical and Environmental Engineering,
Polytechnic School, University of the Basque Country, Plaza Europa
1, 20018 San Sebastián, Spain
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277
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Phillips DJ, Gibson MI. Towards being genuinely smart: ‘isothermally-responsive’ polymers as versatile, programmable scaffolds for biologically-adaptable materials. Polym Chem 2015. [DOI: 10.1039/c4py01539h] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermo-responsive polymers are of broad interest in a range of biomedical and biotechnological fields. This review summaries the use of ‘isothermal’ transitions where thermo-responsive polymers are re-programmed to respond to other stimuli, but with the same outputs, with the aim of making them ‘smarter’.
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Affiliation(s)
| | - Matthew I. Gibson
- Department of Chemistry
- University of Warwick
- Coventry
- UK
- Warwick Medical School
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278
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Meléndez-Ortiz HI, Varca GHC, Lugão AB, Bucio E. Smart Polymers and Coatings Obtained by Ionizing Radiation: Synthesis and Biomedical Applications. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/ojpchem.2015.53003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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279
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Jeong ES, Park C, Kim KT. Doubly responsive polymersomes towards monosaccharides and temperature under physiologically relevant conditions. Polym Chem 2015. [DOI: 10.1039/c5py00302d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A new class of doubly-responsive block copolymers could be utilized as new delivery vehicles for cargo molecules such as insulin.
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Affiliation(s)
- Eun Sun Jeong
- Department of Chemistry
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan 689-798
- Korea
| | - Chiyoung Park
- Department of Chemistry
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan 689-798
- Korea
| | - Kyoung Taek Kim
- Department of Chemistry
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan 689-798
- Korea
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280
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Dhumure AB, Patil AB, Kulkarni AS, Voevodina I, Scandola M, Shinde VS. Thermoresponsive copolymers with pendant d-galactosyl 1,2,3-triazole groups: synthesis, characterization and thermal behavior. NEW J CHEM 2015. [DOI: 10.1039/c5nj01334h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of glycopolymers containing d-galactosyl 1,2,3-triazole groups were synthesized which exhibited thermosensitivity properties.
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Affiliation(s)
- Archana B. Dhumure
- Department of Chemistry
- Savitribai Phule Pune University (Formerly, University of Pune)
- Pune 411007
- India
| | - Ajay B. Patil
- Department of Chemistry
- Savitribai Phule Pune University (Formerly, University of Pune)
- Pune 411007
- India
| | - Anuja S. Kulkarni
- Department of Chemistry
- Savitribai Phule Pune University (Formerly, University of Pune)
- Pune 411007
- India
| | - Irina Voevodina
- Department of Chemistry ‘G. Ciamician’
- University of Bologna
- 40126 Bologna
- Italy
| | | | - Vaishali S. Shinde
- Department of Chemistry
- Savitribai Phule Pune University (Formerly, University of Pune)
- Pune 411007
- India
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281
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Zheng JY, Tan MJ, Thoniyot P, Loh XJ. Unusual thermogelling behaviour of poly[2-(dimethylamino)ethyl methacrylate] (PDMAEMA)-based polymers polymerized in bulk. RSC Adv 2015. [DOI: 10.1039/c5ra12816a] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The bulk synthesis of (PDMAEMA)-based polymers and their unusual thermoreversible gelation in aqueous solutions are described.
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Affiliation(s)
- Jason Yujie Zheng
- Department of Materials Science and Engineering
- National University of Singapore
- Singapore 117576
- Singapore
| | - Mein Jin Tan
- Institute of Materials Research and Engineering (IMRE)
- Singapore 117602
- Singapore
| | - Praveen Thoniyot
- Institute of Materials Research and Engineering (IMRE)
- Singapore 117602
- Singapore
| | - Xian Jun Loh
- Department of Materials Science and Engineering
- National University of Singapore
- Singapore 117576
- Singapore
- Institute of Materials Research and Engineering (IMRE)
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