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Vidovič S, Horvat M, Bizjak A, Planinšek O, Petek B, Burjak M, Peternel L, Parojčić J, Đuriš J, Ibrić S, Janković B. Elucidating molecular properties of kappa-carrageenan as critical material attributes contributing to drug dissolution from pellets with a multivariate approach. Int J Pharm 2019; 566:662-673. [DOI: 10.1016/j.ijpharm.2019.06.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 05/26/2019] [Accepted: 06/06/2019] [Indexed: 11/25/2022]
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2
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Mikac U, Sepe A, Gradišek A, Kristl J, Apih T. Dynamics of water and xanthan chains in hydrogels studied by NMR relaxometry and their influence on drug release. Int J Pharm 2019; 563:373-383. [DOI: 10.1016/j.ijpharm.2019.04.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 03/21/2019] [Accepted: 04/06/2019] [Indexed: 12/12/2022]
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3
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Quantification of the Local Protein Content in Hydrogels Undergoing Swelling and Dissolution at Alkaline pH Using Fluorescence Microscopy. FOOD BIOPROCESS TECH 2017. [DOI: 10.1007/s11947-017-2031-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Rodriguez S, Torres FG, López D. Preparation and Characterization of Polysaccharide Films from the Cyanobacteria Nostoc commune. ACTA ACUST UNITED AC 2017. [DOI: 10.1177/204124791700800401] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nostoc Commune bacteria release a variety of polysaccharides into the culture medium during cell growth. In this paper we report, for the first time, the use of these polysaccharides as a raw material for the preparation of biopolymeric films. The structural characterization of the films prepared was assessed by FTIR and 1H-NMR. XRD and thermal analysis tests showed that these films are amorphous and have a glass transition temperature of −25°C. Tensile tests showed that NCP films displayed a similar mechanical behavior in comparison with other natural biopolymer films. These results suggest that these NCP films can be used for the development of new biopolymeric materials with potential applications in the food and biomedical industries.
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Affiliation(s)
- Sol Rodriguez
- Department of Mechanical Engineering, Pontificia Universidad Católica del Perú, Lima 32, Peru
| | - Fernando G. Torres
- Department of Mechanical Engineering, Pontificia Universidad Católica del Perú, Lima 32, Peru
| | - Daniel López
- CSIC, Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), c/ Juan de la Cierva 3, 28006 Madrid, Spain
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Mikac U, Sepe A, Baumgartner S, Kristl J. The Influence of High Drug Loading in Xanthan Tablets and Media with Different Physiological pH and Ionic Strength on Swelling and Release. Mol Pharm 2016; 13:1147-57. [DOI: 10.1021/acs.molpharmaceut.5b00955] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Urša Mikac
- Jožef Stefan
Institute, 1000 Ljubljana, Slovenia
| | - Ana Sepe
- Jožef Stefan
Institute, 1000 Ljubljana, Slovenia
| | - Saša Baumgartner
- Faculty
of Pharmacy, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Julijana Kristl
- Faculty
of Pharmacy, University of Ljubljana, 1000 Ljubljana, Slovenia
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6
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Liang H, Zeng G, Li Y, Zhang S, Zhao H, Guo L, Liu B, Dong M. Exploring the complex mechanical properties of xanthan scaffolds by AFM-based force spectroscopy. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2014; 5:365-373. [PMID: 24778961 PMCID: PMC3999747 DOI: 10.3762/bjnano.5.42] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Accepted: 03/11/2014] [Indexed: 06/03/2023]
Abstract
The polysaccharide xanthan has been extensively studied owing to its potential application in tissue engineering. In this paper, xanthan scaffold structures were investigated by atomic force microscope (AFM) in liquid, and the mechanical properties of the complex xanthan structures were investigated by using AFM-based force spectroscopy (FS). In this work, three types of structures in the xanthan scaffold were identified based on three types of FS stretching events. The fact that the complex force responses are the combinations of different types of stretching events suggests complicated intermolecular interactions among xanthan fibrils. The results provide crucial information to understand the structures and mechanical properties of the xanthan scaffold.
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Affiliation(s)
- Hao Liang
- Institute of Photo-biophysics, School of Physics and Electronics, Henan University, Kaifeng, 475004 Henan, PR China
| | - Guanghong Zeng
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000 Aarhus, Denmark
| | - Yinli Li
- Institute of Photo-biophysics, School of Physics and Electronics, Henan University, Kaifeng, 475004 Henan, PR China
| | - Shuai Zhang
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000 Aarhus, Denmark
| | - Huiling Zhao
- Institute of Photo-biophysics, School of Physics and Electronics, Henan University, Kaifeng, 475004 Henan, PR China
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000 Aarhus, Denmark
| | - Lijun Guo
- Institute of Photo-biophysics, School of Physics and Electronics, Henan University, Kaifeng, 475004 Henan, PR China
| | - Bo Liu
- Institute of Photo-biophysics, School of Physics and Electronics, Henan University, Kaifeng, 475004 Henan, PR China
| | - Mingdong Dong
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000 Aarhus, Denmark
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Janković B, Pelipenko J, Škarabot M, Muševič I, Kristl J. The design trend in tissue-engineering scaffolds based on nanomechanical properties of individual electrospun nanofibers. Int J Pharm 2013; 455:338-47. [DOI: 10.1016/j.ijpharm.2013.06.083] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 06/26/2013] [Accepted: 06/30/2013] [Indexed: 11/30/2022]
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8
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Wan F, Wu JX, Bohr A, Baldursdottir SG, Maltesen MJ, Bjerregaard S, Foged C, Rantanen J, Yang M. Impact of PLGA molecular behavior in the feed solution on the drug release kinetics of spray dried microparticles. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.08.044] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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9
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Advanced technologies for assessment of polymer swelling and erosion behaviors in pharmaceutical aspect. Eur J Pharm Biopharm 2013. [DOI: 10.1016/j.ejpb.2012.10.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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