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Zhao W, Zou W, Liu F, Zhou F, Altun NE. Molecular dynamics simulations of the solubility and conformation change of chitosan grafted polyacrylamide: Impact of grafting rate. J Mol Graph Model 2024; 126:108660. [PMID: 37956531 DOI: 10.1016/j.jmgm.2023.108660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 10/24/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023]
Abstract
Graft modification is an effective approach to improve the water solubility and molecular weight of chitosan. This work investigated the effect of grafting rate on water solubility of chitosan-grafted polyacrylamide (Chi-g-PAM) using molecular dynamics simulations. The intramolecular and intermolecular interaction between Chi-g-PAM with the grafting rate of 100%-250% and water together with the conformation change were analyzed by radial distribution function (RDF), radius of gyration, solvation free energy (ΔGSFE), mean square displacement, diffusion coefficient and shear viscosity. The results showed that the intramolecular hydrogen bonding of Chi-g-PAM was the dominant factor affecting its water solubility. While the grafting rate of Chi-g-PAM increased from 100% to 250%, the RDF of Chi-g-PAM decreased from 5.39 to 3.57 between O-H at 2.0 Å and 2.60 to 1.30 between N-H at 2.1 Å. The interaction between Chi-g-PAM and water increased with grafting rate as the absolute value of ΔGSFE for Chi-g-PAM increased from 432.917 kcal/mol to 858.749 kcal/mol. The solubility of Chi-g-PAM in acidic solution was much better than that of Chi-g-PAM in aqueous solution. Our work on the fundamental insights into the effect of grafted molecular structure of chitosan-based copolymer on its solubility will benefit the development of environmentally friendly chitosan-based flocculants.
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Affiliation(s)
- Wei Zhao
- State Key Laboratory of High-Efficient Mining and Safety of Metal Mines of Ministry of Education, University of Science and Technology Beijing, Beijing 100083, China; State Key Laboratory of Water Resource Protection and Utilization in Coal Mining, China
| | - Wenjie Zou
- State Key Laboratory of Water Resource Protection and Utilization in Coal Mining, China; School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China.
| | - Fengyang Liu
- School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Fang Zhou
- Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan, 430073, China
| | - N Emre Altun
- Middle East Technical University, Mining Engineering Department, Ankara, Turkey
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Bhaskaran NA, Jitta SR, Salwa, Kumar L, Sharma P, Kulkarni OP, Hari G, Gourishetti K, Verma R, Birangal SR, Bhaskar KV. Folic acid-chitosan functionalized polymeric nanocarriers to treat colon cancer. Int J Biol Macromol 2023; 253:127142. [PMID: 37797853 DOI: 10.1016/j.ijbiomac.2023.127142] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/27/2023] [Accepted: 09/27/2023] [Indexed: 10/07/2023]
Abstract
In the present study, polymeric nanoparticles loaded with IRI and quercetin, a p-gp inhibitor, were developed to target folate receptors expressed by colon cancer cells for oral targeted delivery. This work reports the development of PNPs with an entrapment efficiency of 41.26 ± 0.56 % for IRI and 55.83 ± 4.51 for QT. PNPs were further surface modified using chitosan-folic acid conjugates for better targetability to obtain folic acid-chitosan coated nanoparticles. DLS and FeSEM revealed particles in the nanometric size range with spherical morphology, while FTIR and DSC provided details on their structure and encapsulation. In vitro drug release studies confirmed a sustained release pattern of IRI and QT, while cell line studies confirmed the superiority of C-FA-PNPs when tested on Caco2 cells. Pharmacodynamic studies in colon cancer induced rats showed similar efficacy for PNPs and C-FA-PNPs. Further examination from a bio-distribution study in healthy rats, revealed the failure of C-FA-PNPs to deliver the drugs to the colon adequately, while the PNPs improved the available concentration of IRI at the colon by almost 1.8 folds when compared to the available marketed product. Hence, the developed PNP formulation sticks out as a plausible substitute for the intravenous dosage forms of IRI which have been conventionally prevailing.
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Affiliation(s)
- Navya Ajitkumar Bhaskaran
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka, India; Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mithibai College Campus, Gate No. 2, V.M. Road, Vile Parle (W), Mumbai 400056, Maharashtra, India
| | - Srinivas Reddy Jitta
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka, India
| | - Salwa
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka, India
| | - Lalit Kumar
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka, India; Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hajipur, Vaishali, Bihar, India.
| | - Pravesh Sharma
- Department of Pharmacy, Birla Institute of Technology and Science - Pilani, Hyderabad campus, India
| | - Onkar Prakash Kulkarni
- Department of Pharmacy, Birla Institute of Technology and Science - Pilani, Hyderabad campus, India
| | - Gangadhar Hari
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka, India
| | - Karthik Gourishetti
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka, India; Biotherapeutics Laboratory, Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, USA
| | - Ruchi Verma
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka, India
| | - Sumit Raosaheb Birangal
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka, India
| | - K Vijaya Bhaskar
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka, India
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Chitosan-Based Hemostatic Hydrogels: The Concept, Mechanism, Application, and Prospects. Molecules 2023; 28:molecules28031473. [PMID: 36771141 PMCID: PMC9921727 DOI: 10.3390/molecules28031473] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/19/2023] [Accepted: 01/27/2023] [Indexed: 02/05/2023] Open
Abstract
The design of new hemostatic materials to mitigate uncontrolled bleeding in emergencies is challenging. Chitosan-based hemostatic hydrogels have frequently been used for hemostasis due to their unique biocompatibility, tunable mechanical properties, injectability, and ease of handling. Moreover, chitosan (CS) absorbs red blood cells and activates platelets to promote hemostasis. Benefiting from these desired properties, the hemostatic application of CS hydrogels is attracting ever-increasing research attention. This paper reviews the recent research progress of CS-based hemostatic hydrogels and their advantageous characteristics compared to traditional hemostatic materials. The effects of the hemostatic mechanism, effects of deacetylation degree, relative molecular mass, and chemical modification on the hemostatic performance of CS hydrogels are summarized. Meanwhile, some typical applications of CS hydrogels are introduced to provide references for the preparation of efficient hemostatic hydrogels. Finally, the future perspectives of CS-based hemostatic hydrogels are presented.
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Kujawska M, Raulo A, Millar M, Warren F, Baltrūnaitė L, Knowles SCL, Hall LJ. Bifidobacterium castoris strains isolated from wild mice show evidence of frequent host switching and diverse carbohydrate metabolism potential. ISME COMMUNICATIONS 2022; 2:20. [PMID: 37938745 PMCID: PMC9723756 DOI: 10.1038/s43705-022-00102-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 01/30/2022] [Accepted: 02/09/2022] [Indexed: 11/09/2023]
Abstract
Members of the gut microbiota genus Bifidobacterium are widely distributed human and animal symbionts believed to exert beneficial effects on their hosts. However, in-depth genomic analyses of animal-associated species and strains are somewhat lacking, particularly in wild animal populations. Here, to examine patterns of host specificity and carbohydrate metabolism capacity, we sequenced whole genomes of Bifidobacterium isolated from wild-caught small mammals from two European countries (UK and Lithuania). Members of Bifidobacterium castoris, Bifidobacterium animalis and Bifodobacterium pseudolongum were detected in wild mice (Apodemus sylvaticus, Apodemus agrarius and Apodemus flavicollis), but not voles or shrews. B. castoris constituted the most commonly recovered Bifidobacterium (78% of all isolates), with the majority of strains only detected in a single population, although populations frequently harboured multiple co-circulating strains. Phylogenetic analysis revealed that the mouse-associated B. castoris clades were not specific to a particular location or host species, and their distribution across the host phylogeny was consistent with regular host shifts rather than host-microbe codiversification. Functional analysis, including in vitro growth assays, suggested that mouse-derived B. castoris strains encoded an extensive arsenal of carbohydrate-active enzymes, including putative novel glycosyl hydrolases such as chitosanases, along with genes encoding putative exopolysaccharides, some of which may have been acquired via horizontal gene transfer. Overall, these results provide a rare genome-level analysis of host specificity and genomic capacity among important gut symbionts of wild animals, and reveal that Bifidobacterium has a labile relationship with its host over evolutionary time scales.
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Affiliation(s)
- Magdalena Kujawska
- Gut Microbes & Health, Quadram Institute Biosciences, Norwich Research Park, Norwich, UK
- Intestinal Microbiome, ZIEL - Institute for Food & Health, Technical University of Munich, Freising, Germany
| | - Aura Raulo
- Department of Zoology, University of Oxford, Mansfield Road, Oxford, UK
| | - Molly Millar
- Food Innovation and Health, Quadram Institute Biosciences, Norwich Research Park, Norwich, UK
| | - Fred Warren
- Food Innovation and Health, Quadram Institute Biosciences, Norwich Research Park, Norwich, UK
| | | | - Sarah C L Knowles
- Department of Zoology, University of Oxford, Mansfield Road, Oxford, UK
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, Hatfield, Herfordshire, UK
| | - Lindsay J Hall
- Gut Microbes & Health, Quadram Institute Biosciences, Norwich Research Park, Norwich, UK.
- Intestinal Microbiome, ZIEL - Institute for Food & Health, Technical University of Munich, Freising, Germany.
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, UK.
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The effect of chitosan (CS) coagulation bath on structure and performance of polylactic acid (PLA) microfiltration membrane. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-021-0992-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yan G, Hong Y, Zhu H, Li C, Zhang B. Preparation and characterization of n-octylamine modified alginate/chitosan microspheres for controlled release of avermectin. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2020.1785888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Guangyao Yan
- Institute of New Pesticide Innovation & Research, Qingdao Agricultural University, Qingdao, PR China
| | - Yuxi Hong
- Institute of New Pesticide Innovation & Research, Qingdao Agricultural University, Qingdao, PR China
| | - Haiyun Zhu
- College of Energy and Chemical Engineering, Ningxia Vocational Technical College of Industry and Commerce, Yinchuan, PR China
| | - Changyou Li
- Key Lab of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, PR China
| | - Baohua Zhang
- Institute of New Pesticide Innovation & Research, Qingdao Agricultural University, Qingdao, PR China
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Chen D, Chen C, Zheng X, Chen J, He W, Lin C, Chen H, Chen Y, Xue T. Chitosan Oligosaccharide Production Potential of Mitsuaria sp. C4 and Its Whole-Genome Sequencing. Front Microbiol 2021; 12:695571. [PMID: 34421850 PMCID: PMC8374441 DOI: 10.3389/fmicb.2021.695571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 06/03/2021] [Indexed: 12/05/2022] Open
Abstract
Chitooligosaccharide is a kind of functional food, which is the degradation product of chitosan (COS) catalyzed by the endo-chitosanase (COSE) enzyme. A COSE with a molecular weight of 34 kDa was purified and characterized from a newly isolated Mitsuaria sp. C4 (C4), and a 38.46% recovery rate and 4.79-fold purification were achieved. The purified C4 COSE exhibited optimum activity at 40°C and pH 7.2 and was significantly inhibited in the presence of Cu2+ and Fe3+. The Km and Vmin of the COSE toward COS were 2.449 g/L and 0.042 g/min/L, respectively. The highest COSE activity reached 8.344 U/ml after optimizing, which represented a 1.34-fold of increase. Additionally, chitooligosaccharide obtained by COSE hydrolysis of COS was verified by using thin-layer chromatography and high-performance liquid chromatography analysis. Whole-genome sequencing demonstrated that the C4 strain contains 211 carbohydrate enzymes, our purified COSE belonging to GHs-46 involved in carbohydrate degradation. Phylogenetic analysis showed that the novel COSE obtained from the C4 strain was clustered into the degree of polymerization = two to three groups, which can perform catalysis in a similar manner to produce (GlcN)2 and (GlcN)3. This work indicates that the C4 strain could be a good resource for enhancing carbohydrate degradation and might represent a useful tool for chitooligosaccharide production in the functional food industry.
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Affiliation(s)
- Duo Chen
- The Public Service Platform for Industrialization Development Technology of Marine Biological Medicine and Products of the State Oceanic Administration, Fujian Key Laboratory of Special Marine Bioresource Sustainable Utilization, Key Laboratory of Developmental and Neural Biology, College of Life Sciences, Southern Institute of Oceanography, Fujian Normal University, Fuzhou, China
| | - Congcong Chen
- The Public Service Platform for Industrialization Development Technology of Marine Biological Medicine and Products of the State Oceanic Administration, Fujian Key Laboratory of Special Marine Bioresource Sustainable Utilization, Key Laboratory of Developmental and Neural Biology, College of Life Sciences, Southern Institute of Oceanography, Fujian Normal University, Fuzhou, China
| | - Xuehai Zheng
- The Public Service Platform for Industrialization Development Technology of Marine Biological Medicine and Products of the State Oceanic Administration, Fujian Key Laboratory of Special Marine Bioresource Sustainable Utilization, Key Laboratory of Developmental and Neural Biology, College of Life Sciences, Southern Institute of Oceanography, Fujian Normal University, Fuzhou, China
| | - Jiannan Chen
- The Public Service Platform for Industrialization Development Technology of Marine Biological Medicine and Products of the State Oceanic Administration, Fujian Key Laboratory of Special Marine Bioresource Sustainable Utilization, Key Laboratory of Developmental and Neural Biology, College of Life Sciences, Southern Institute of Oceanography, Fujian Normal University, Fuzhou, China
| | - Wenjin He
- The Public Service Platform for Industrialization Development Technology of Marine Biological Medicine and Products of the State Oceanic Administration, Fujian Key Laboratory of Special Marine Bioresource Sustainable Utilization, Key Laboratory of Developmental and Neural Biology, College of Life Sciences, Southern Institute of Oceanography, Fujian Normal University, Fuzhou, China
| | - Chentao Lin
- The Public Service Platform for Industrialization Development Technology of Marine Biological Medicine and Products of the State Oceanic Administration, Fujian Key Laboratory of Special Marine Bioresource Sustainable Utilization, Key Laboratory of Developmental and Neural Biology, College of Life Sciences, Southern Institute of Oceanography, Fujian Normal University, Fuzhou, China
| | - Huibin Chen
- The Public Service Platform for Industrialization Development Technology of Marine Biological Medicine and Products of the State Oceanic Administration, Fujian Key Laboratory of Special Marine Bioresource Sustainable Utilization, Key Laboratory of Developmental and Neural Biology, College of Life Sciences, Southern Institute of Oceanography, Fujian Normal University, Fuzhou, China
| | - Youqiang Chen
- The Public Service Platform for Industrialization Development Technology of Marine Biological Medicine and Products of the State Oceanic Administration, Fujian Key Laboratory of Special Marine Bioresource Sustainable Utilization, Key Laboratory of Developmental and Neural Biology, College of Life Sciences, Southern Institute of Oceanography, Fujian Normal University, Fuzhou, China
| | - Ting Xue
- The Public Service Platform for Industrialization Development Technology of Marine Biological Medicine and Products of the State Oceanic Administration, Fujian Key Laboratory of Special Marine Bioresource Sustainable Utilization, Key Laboratory of Developmental and Neural Biology, College of Life Sciences, Southern Institute of Oceanography, Fujian Normal University, Fuzhou, China
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Bezrodnykh EA, Berezin BB, Kulikov SN, Zelenikhin PV, Vyshivannaya OV, Blagodatskikh IV, Tikhonov VE. Unusual Compatibility of N‐Reacetylated Oligochitosan with Sodium Dodecyl Sulfate in Aqueous Solution with a Wide Range of the Solution pH. STARCH-STARKE 2021. [DOI: 10.1002/star.202000234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Evgeniya A. Bezrodnykh
- Polymer Department A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Russia, Vavilova st. 28 Moscow 119991 Russia
| | - Boris B. Berezin
- Polymer Department A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Russia, Vavilova st. 28 Moscow 119991 Russia
| | - Sergey N. Kulikov
- Department of Immunology Kazan Scientific Research Institute of Epidemiology and Microbiology Bolshaya Krasnaya st. 67 Kazan 420015 Russia
- Department of Microbiology Kazan Federal University Kremlyovskaya st. 18 Kazan 420008 Russia
| | - Pavel V. Zelenikhin
- Department of Microbiology Kazan Federal University Kremlyovskaya st. 18 Kazan 420008 Russia
| | - Oxana V. Vyshivannaya
- Polymer Department A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Russia, Vavilova st. 28 Moscow 119991 Russia
| | - Inesa V. Blagodatskikh
- Polymer Department A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Russia, Vavilova st. 28 Moscow 119991 Russia
| | - Vladimir E. Tikhonov
- Polymer Department A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Russia, Vavilova st. 28 Moscow 119991 Russia
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Ćirić A, Medarević Đ, Čalija B, Dobričić V, Mitrić M, Djekic L. Study of chitosan/xanthan gum polyelectrolyte complexes formation, solid state and influence on ibuprofen release kinetics. Int J Biol Macromol 2020; 148:942-955. [DOI: 10.1016/j.ijbiomac.2020.01.138] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/14/2020] [Accepted: 01/14/2020] [Indexed: 01/24/2023]
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