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Qi Q, Fan C, Wu H, Sun L, Cao C. Preparation of Trichoderma asperellum Microcapsules and Biocontrol of Cucumber Powdery Mildew. Microbiol Spectr 2023; 11:e0508422. [PMID: 37102872 PMCID: PMC10269890 DOI: 10.1128/spectrum.05084-22] [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: 12/10/2022] [Accepted: 04/08/2023] [Indexed: 04/28/2023] Open
Abstract
Microencapsulation is an important technique for protecting the viability and activity of microorganisms under adverse environmental conditions. To improve biological control, controlled-release microcapsules of Trichoderma asperellum were prepared and embedded in combinations of the biodegradable wall materials sodium alginate (SA). The microcapsules were evaluated for their ability to control cucumber powdery mildew in the greenhouse. The results showed that the highest encapsulation efficiency of 95% was obtained by applying 1% SA and 4% calcium chloride. The microcapsules provided good, controlled release and UV resistance, and could be stored for a long time. The greenhouse experiment revealed that the T. asperellum microcapsules had a maximal biocontrol efficiency of 76% against cucumber powdery mildew. In summary, embedding T. asperellum in microcapsules is a promising technique to improve the survivability of T. asperellum conidia. The T. asperellum microcapsules exerted significant biocontrol efficiency against cucumber powdery mildew. IMPORTANCE Trichoderma asperellum is widely found in plant roots and soil and has been used for the biocontrol of various plant pathogens; however, the control efficiency of T. asperellum is usually unstable in field trials. To improve the control efficiency of T. asperellum, in the present study, T. asperellum microcapsules were prepared using sodium alginate as wall material to reduce the effects of temperature, UV irradiation, and other environmental factors on its activity, and to significantly improve its biocontrol efficiency on cucumber powdery mildew. Microcapsules can prolong the shelf life of microbial pesticides. This study provides a new way to prepare a biocontrol agent against cucumber powdery mildew with high efficiency.
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Affiliation(s)
- Qi Qi
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, Harbin, People’s Republic of China
| | - Chengcheng Fan
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, Harbin, People’s Republic of China
| | - Hongqu Wu
- Hubei Biopesticide Engineering Research Center, Wuhan, Hubei, People’s Republic of China
| | - Lili Sun
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, Harbin, People’s Republic of China
| | - Chuanwang Cao
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, Harbin, People’s Republic of China
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Horue M, Silva JM, Berti IR, Brandão LR, Barud HDS, Castro GR. Bacterial Cellulose-Based Materials as Dressings for Wound Healing. Pharmaceutics 2023; 15:pharmaceutics15020424. [PMID: 36839745 PMCID: PMC9963514 DOI: 10.3390/pharmaceutics15020424] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/10/2022] [Accepted: 12/23/2022] [Indexed: 01/31/2023] Open
Abstract
Bacterial cellulose (BC) is produced by several microorganisms as extracellular structures and can be modified by various physicochemical and biological strategies to produce different cellulosic formats. The main advantages of BC for biomedical applications can be summarized thus: easy moldability, purification, and scalability; high biocompatibility; and straightforward tailoring. The presence of a high amount of free hydroxyl residues, linked with water and nanoporous morphology, makes BC polymer an ideal candidate for wound healing. In this frame, acute and chronic wounds, associated with prevalent pathologies, were addressed to find adequate therapeutic strategies. Hence, the main characteristics of different BC structures-such as membranes and films, fibrous and spheroidal, nanocrystals and nanofibers, and different BC blends, as well as recent advances in BC composites with alginate, collagen, chitosan, silk sericin, and some miscellaneous blends-are reported in detail. Moreover, the development of novel antimicrobial BC and drug delivery systems are discussed.
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Affiliation(s)
- Manuel Horue
- Laboratorio de Nanobiomateriales, CINDEFI, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP)-CONICET (CCT La Plata), Calle 47 y 115, La Plata B1900, Argentina
| | - Jhonatan Miguel Silva
- Biopolymers and Biomaterials Laboratory—BioPolMat, University of Araraquara—UNIARA, Araraquara 14801-320, SP, Brazil
| | - Ignacio Rivero Berti
- Laboratorio de Nanobiomateriales, CINDEFI, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP)-CONICET (CCT La Plata), Calle 47 y 115, La Plata B1900, Argentina
| | - Larissa Reis Brandão
- Biopolymers and Biomaterials Laboratory—BioPolMat, University of Araraquara—UNIARA, Araraquara 14801-320, SP, Brazil
| | - Hernane da Silva Barud
- Biopolymers and Biomaterials Laboratory—BioPolMat, University of Araraquara—UNIARA, Araraquara 14801-320, SP, Brazil
- Correspondence: (H.d.S.B.); (G.R.C.)
| | - Guillermo R. Castro
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC), Partner Laboratory of the Max Planck Institute for Biophysical Chemistry (MPIbpC, MPG), Centro de Estudios Interdisciplinarios (CEI), Universidad Nacional de Rosario, Maipú 1065, Rosario S2000, Argentina
- Nanomedicine Research Unit (Nanomed), Center for Natural and Human Sciences (CCNH), Universidade Federal do ABC (UFABC), Santo André 09210-580, SP, Brazil
- Correspondence: (H.d.S.B.); (G.R.C.)
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Alginates Combined with Natural Polymers as Valuable Drug Delivery Platforms. Mar Drugs 2022; 21:md21010011. [PMID: 36662184 PMCID: PMC9861938 DOI: 10.3390/md21010011] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
Alginates (ALG) have been used in biomedical and pharmaceutical technologies for decades. ALG are natural polymers occurring in brown algae and feature multiple advantages, including biocompatibility, low toxicity and mucoadhesiveness. Moreover, ALG demonstrate biological activities per se, including anti-hyperlipidemic, antimicrobial, anti-reflux, immunomodulatory or anti-inflammatory activities. ALG are characterized by gelling ability, one of the most frequently utilized properties in the drug form design. ALG have numerous applications in pharmaceutical technology that include micro- and nanoparticles, tablets, mucoadhesive dosage forms, wound dressings and films. However, there are some shortcomings, which impede the development of modified-release dosage forms or formulations with adequate mechanical strength based on pure ALG. Other natural polymers combined with ALG create great potential as drug carriers, improving limitations of ALG matrices. Therefore, in this paper, ALG blends with pectins, chitosan, gelatin, and carrageenans were critically reviewed.
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Antibiotic delivery based on poly(lactic-co-glycolic) acid and natural polymers: a biocomposite strategy. IRANIAN POLYMER JOURNAL 2022. [DOI: 10.1007/s13726-022-01124-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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The New Strategy for Studying Drug-Delivery Systems with Prolonged Release: Seven-Day In Vitro Antibacterial Action. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27228026. [PMID: 36432127 PMCID: PMC9695913 DOI: 10.3390/molecules27228026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022]
Abstract
The new method of antibacterial-drug-activity investigation in vitro is proposed as a powerful strategy for understanding how carriers affect drug action during long periods (7 days). In this paper, we observed fluoroquinolone moxifloxacin (MF) antibacterial-efficiency in non-covalent complexes, with the sulfobutyl ether derivative of β-cyclodextrin (SCD) and its polymer (SCDpol). We conducted in vitro studies on two Escherichia coli strains that differed in surface morphology. It was found that MF loses its antibacterial action after 3-4 days in liquid media, whereas the inclusion of the drug in SCD led to the increase of MF antibacterial activity by up to 1.4 times within 1-5 days of the experiment. In the case of MF-SCDpol, we observed a 12-fold increase in the MF action, and a tendency to prolonged antibacterial activity. We visualized this phenomenon (the state of bacteria, cell membrane, and surface morphology) during MF and MF-carrier exposure by TEM. SCD and SCDpol did not change the drug's mechanism of action. Particle adsorption on cells was the crucial factor for determining the observed effects. The proteinaceous fimbriae on the bacteria surface gave a 2-fold increase of the drug carrier adsorption, hence the strains with fimbriae are more preferable for the proposed treatment. Furthermore, the approach to visualize the CD polymer adsorption on bacteria via TEM is suggested. We hope that the proposed comprehensive method will be useful for the studies of drug-delivery systems to uncover long-term antibacterial action.
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Pectin Microspheres: Synthesis Methods, Properties, and Their Multidisciplinary Applications. CHEMISTRY 2022. [DOI: 10.3390/chemistry4010011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
There is great contemporary interest in using cleaner technologies through green chemistry and utilizing biopolymers as raw material. Pectin is found on plant cell walls, and it is commonly extracted from fruit shells, mostly apples or citrus fruits. Pectin has applications in many areas of commercial relevance; for this reason, it is possible to find available information about novel methods to transform pectin and pursuing enhanced features, with the structuring of biopolymer microspheres being highly cited to enhance its activity. The structuring of polymers is a technique that has been growing in recent decades, due to its potential for diverse applications in various fields of science and technology. Several techniques are used for the synthesis of microspheres, such as ionotropic gelation, extrusion, aerosol drying, or emulsions, with the latter being the most commonly used method based on its reproducibility and simplicity. The most cited applications are in drug delivery, especially for the treatment of colon diseases and digestive-tract-related issues. In the industrial field, it is used for protecting encapsulated compounds; moreover, the environmental applications mainly include the bioremediation of toxic substances. However, there are still many possibilities for expanding the use of this biopolymer in the environmental field.
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Exploration of the Microstructure and Rheological Properties of Sodium Alginate-Pectin-Whey Protein Isolate Stabilized Β-Carotene Emulsions: To Improve Stability and Achieve Gastrointestinal Sustained Release. Foods 2021; 10:foods10091991. [PMID: 34574098 PMCID: PMC8465917 DOI: 10.3390/foods10091991] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/21/2021] [Accepted: 08/23/2021] [Indexed: 01/04/2023] Open
Abstract
Sodium alginate (SA)-pectin (PEC)-whey protein isolate (WPI) complexes were used as an emulsifier to prepare β-carotene emulsions, and the encapsulation efficiency for β-carotene was up to 93.08%. The confocal laser scanning microscope (CLSM) and scanning electron microscope (SEM) images showed that the SA-PEC-WPI emulsion had a compact network structure. The SA-PEC-WPI emulsion exhibited shear-thinning behavior and was in a semi-dilute or weak network state. The SA-PEC-WPI stabilized β-carotene emulsion had better thermal, physical and chemical stability. A small amount of β-carotene (19.46 ± 1.33%) was released from SA-PEC-WPI stabilized β-carotene emulsion in simulated gastric digestion, while a large amount of β-carotene (90.33 ± 1.58%) was released in simulated intestinal digestion. Fourier transform infrared (FTIR) experiments indicated that the formation of SA-PEC-WPI stabilized β-carotene emulsion was attributed to the electrostatic and hydrogen bonding interactions between WPI and SA or PEC, and the hydrophobic interactions between β-carotene and WPI. These results can facilitate the design of polysaccharide-protein stabilized emulsions with high encapsulation efficiency and stability for nutraceutical delivery in food and supplement products.
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Saberi-Riseh R, Moradi-Pour M, Mohammadinejad R, Thakur VK. Biopolymers for Biological Control of Plant Pathogens: Advances in Microencapsulation of Beneficial Microorganisms. Polymers (Basel) 2021; 13:1938. [PMID: 34200966 PMCID: PMC8230584 DOI: 10.3390/polym13121938] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/29/2021] [Accepted: 06/01/2021] [Indexed: 12/17/2022] Open
Abstract
The use of biofertilizers, including biocontrol agents such as Pseudomonas and Bacillus in agriculture can increase soil characteristics and plant acquisition of nutrients and enhancement the efficiency of manure and mineral fertilizer. Despite the problems that liquid and solid formulations have in maintaining the viability of microbial agents, encapsulation can improve their application with extended shelf-life, and controlled release from formulations. Research into novel formulation methods especially encapsulation techniques has increased in recent years due to the mounting demand for microbial biological control. The application of polymeric materials in agriculture has developed recently as a replacement for traditional materials and considered an improvement in technological processes in the growing of crops. This study aims to overview of types of biopolymers and methods used for encapsulation of living biological control agents, especially microbial organisms.
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Affiliation(s)
- Roohallah Saberi-Riseh
- Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan 7718893514, Iran;
| | - Mojde Moradi-Pour
- Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan 7718893514, Iran;
| | - Reza Mohammadinejad
- Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman 7618866749, Iran;
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, Scotland’s Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK
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Zhang M, Cai Z, Zhang G, Zhang Y, Xue N, Zhang D, Pan X. Effectively reducing antibiotic contamination and resistance in fishery by efficient gastrointestine-blood delivering dietary millispheres. JOURNAL OF HAZARDOUS MATERIALS 2021; 409:125012. [PMID: 33440322 DOI: 10.1016/j.jhazmat.2020.125012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 12/27/2020] [Accepted: 12/28/2020] [Indexed: 06/12/2023]
Abstract
The overuse of antibiotics during the medication treatment is inevitable in the extensively-applied intensive and semi-intensive aquaculture mode; the accompanied antibiotic contamination and antimicrobial resistance pose threats to the ecosystems and cause great loss to the aquaculture industry. To solve the problem, this work introduced the antibiotic-laden dietary millispheres (DMSs) with internal porous structure for the high availability, attractiveness and digestibility to fish. Two types of antibiotics with distinct solubilities - tetracycline chloride (TCH) and sulfadiazine (SDZ) were made into the DMSs, individually, which were then directly adopted in the feeding of fish. Carassius auratus was chosen as the target fish in this work. The mesocosm study demonstrate that, compared with the regular way of oral administration (feeding the mixture of antibiotics and commercial feed pellets), the DMSs could use much less (i.e. one order of magnitude lower) antibiotic dose to reach the equivalent antibiotic concentration in gastrointestine and blood. As a robust alternative, either TCH- or SDZ-laden DMSs achieved efficient drug delivery in vivo, which importantly facilitated the source reduction of antibiotics, the alleviation of antibiotic contamination in fishery and the control of antibiotic resistance especially in sediments.
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Affiliation(s)
- Ming Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Zhongxia Cai
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Guofu Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yin Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Nana Xue
- Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Daoyong Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Xiangliang Pan
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China; Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; University of Chinese Academy of Sciences, Beijing 100049, China
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Afzaal M, Saeed F, Hussain S, Mohamed AA, Alamri MS, Ahmad A, Ateeq H, Tufail T, Hussain M. Survival and storage stability of encapsulated probiotic under simulated digestion conditions and on dried apple snacks. Food Sci Nutr 2020; 8:5392-5401. [PMID: 33133541 PMCID: PMC7590301 DOI: 10.1002/fsn3.1815] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 07/14/2020] [Accepted: 07/16/2020] [Indexed: 01/16/2023] Open
Abstract
The objective of the current study was to explore the probiotics carrier potential of apple dried snacks and improve the survival of probiotics under simulated gastrointestinal conditions. Purposely, the probiotics were encapsulated using two hydrogel materials (sodium alginate and carrageenan) by using encapsulator. Briefly, slices of apple were immersed in solution containing free and encapsulated probiotics and then dried by conventional drying method. The dried apple snack was analyzed for different characteristics (physiochemical and microbiological) during storage. The viability of the free and encapsulated probiotics was accessed in apple snack and under simulated gastrointestinal conditions. Apple snack rich with encapsulated probiotics showed a significant result (p < .05) regarding the survival and stability. The encapsulated probiotics decreased from 9.5 log CFU/g to 8.83 log CFU/g as compared to free probiotics that decreased to 5.28 log CFU/g. Furthermore, encapsulated probiotics exhibited a better stability under simulated gastrointestinal conditions as compared to free. During storage, an increase in phenolic content and hardness was observed while decrease in pH was noted. Results of sensory parameters indicated apple snack as potential and acceptable probiotics carrier.
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Affiliation(s)
- Muhammad Afzaal
- Institute of Home & Food SciencesGovernment College University FaisalabadFaisalabadPakistan
| | - Farhan Saeed
- Institute of Home & Food SciencesGovernment College University FaisalabadFaisalabadPakistan
| | - Shahzad Hussain
- Department of Food Science & NutritionKing Saud UniversityRiyadhSaudi Arabia
| | | | - Mohamed S. Alamri
- Department of Food Science & NutritionKing Saud UniversityRiyadhSaudi Arabia
| | - Aftab Ahmad
- Institute of Home & Food SciencesGovernment College University FaisalabadFaisalabadPakistan
| | - Huda Ateeq
- Institute of Home & Food SciencesGovernment College University FaisalabadFaisalabadPakistan
| | - Tabussam Tufail
- Institute of Home & Food SciencesGovernment College University FaisalabadFaisalabadPakistan
| | - Muzammil Hussain
- Institute of Home & Food SciencesGovernment College University FaisalabadFaisalabadPakistan
- The University of GambiaSerrekundaGambia
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Miranda-Linares V, Quintanar-Guerrero D, Del Real A, Zambrano-Zaragoza M. Spray-drying method for the encapsulation of a functionalized ingredient in alginate-pectin nano- and microparticles loaded with distinct natural actives: Stability and antioxidant effect. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.105560] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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12
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Khine YY, Batchelor R, Raveendran R, Stenzel MH. Photo‐Induced Modification of Nanocellulose: The Design of Self‐Fluorescent Drug Carriers. Macromol Rapid Commun 2019; 41:e1900499. [DOI: 10.1002/marc.201900499] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/02/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Yee Yee Khine
- Center for Advanced Macromolecular DesignSchool of ChemistryThe University of New South Wales Sydney 2052 Australia
| | - Rhiannon Batchelor
- Center for Advanced Macromolecular DesignSchool of ChemistryThe University of New South Wales Sydney 2052 Australia
| | - Radhika Raveendran
- Center for Advanced Macromolecular DesignSchool of ChemistryThe University of New South Wales Sydney 2052 Australia
| | - Martina H. Stenzel
- Center for Advanced Macromolecular DesignSchool of ChemistryThe University of New South Wales Sydney 2052 Australia
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Production and characterization of functional flavored milk and flavored fermented milk using microencapsulated canthaxanthin. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.108373] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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14
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Optimization of Alginate-Whey Protein Isolate Microcapsules for Survivability and Release Behavior of Probiotic Bacteria. Appl Biochem Biotechnol 2019; 190:182-196. [DOI: 10.1007/s12010-019-03071-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 07/05/2019] [Indexed: 10/26/2022]
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Lactoferrin-Loaded Alginate Microparticles to Target Clostridioides difficile Infection. J Pharm Sci 2019; 108:2438-2446. [PMID: 30851342 DOI: 10.1016/j.xphs.2019.02.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 02/17/2019] [Accepted: 02/27/2019] [Indexed: 12/30/2022]
Abstract
Some forms of bovine lactoferrin (bLf) are effective in delaying Clostridioides difficile growth and preventing toxin production. However, therapeutic use of bLf may be limited by protein stability issues. The objective of this study was to prepare and evaluate colon-targeted, pH-triggered alginate microparticles loaded with bioactive bLf and to evaluate their anti-C difficile defense properties in vitro. Different forms of metal-bound bLf were encapsulated in alginate microparticles using an emulsification or internal gelation method. The microparticles were coated with chitosan to control protein release. In vitro drug release studies were conducted in pH-simulated gastrointestinal conditions to investigate the release kinetics of encapsulated protein. No significant release of metal-bound bLf was observed at acidic pH; however, on reaching simulated colonic pH, most of the encapsulated lactoferrin was released. The application of bLf (5 mg/mL) delivered from alginate microparticles to human intestinal epithelial cells significantly reduced the cytotoxic effects of toxins A and B as well as bacterial supernatant on Caco-2 and Vero cells, respectively. These results are the first to suggest that alginate-bLf microparticles show protective effects against C difficile toxin-mediated epithelial damage and impairment of barrier function in human intestinal epithelial cells. The future potential of lactoferrin-loaded alginate microparticles against C difficile deserves further study.
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Berti IR, Rodenak-Kladniew B, Perez AA, Santiago L, Duran N, Castro GR. Development of biocarrier for violacein controlled release in the treatment of cancer. REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2019.01.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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17
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Arab M, Hosseini SM, Nayebzadeh K, Khorshidian N, Yousefi M, Razavi SH, Mortazavian AM. Microencapsulation of microbial canthaxanthin with alginate and high methoxyl pectin and evaluation the release properties in neutral and acidic condition. Int J Biol Macromol 2018; 121:691-698. [PMID: 30336238 DOI: 10.1016/j.ijbiomac.2018.10.114] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 09/19/2018] [Accepted: 10/14/2018] [Indexed: 01/31/2023]
Abstract
Canthaxanthin (CX) is an orange-red keto-carotenoid with high antioxidant activity. This functional pigment is sensitive to oxygen, light, pH and heat. In this study, CX was produced by the Dietzia natronolimnaea HS-1 and was encapsulated in Alginate (Alg) and Alg-high methoxyl pectin (HMP) through O/W/O multiple emulsion/external gelation method to developed resistant microparticles among acidic and neutral pHs. Results showed that initial CX concentration had a significant influence on total CX (TCX), surface CX (SCX), microencapsulation efficiency (EE) and particles size. The highest EE% for Alg (60.21 ± 0.18) and Alg-HMP (70.60 ± 0.68) were obtained with CX initial concentration of 11 and 18 μg/mg, respectively. Alg microparticles showed smaller size compare to Alg-HMP microcapsules. Presence of CX in microparticles and good antioxidant activity was confirmed by FT-IR spectroscopy and DPPH assay, respectively. CX in vitro release was 66% and 49% in acidic condition and 76% and 50% in neutral condition for Alg and Alg-HMP, respectively. Thus, Alg-HMP-CX18 microparticles were selected to be used in both neutral and acidic foods such as milk and fermented milks products as an antioxidant and a colorant agent.
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Affiliation(s)
- Masoumeh Arab
- Student Research Committee, Department of Food Technology, Faculty of Nutrition Sciences and Food Technology/National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyede Marzieh Hosseini
- Department of Food Technology, Faculty of Nutrition Sciences and Food Technology/National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kooshan Nayebzadeh
- Department of Food Technology, Faculty of Nutrition Sciences and Food Technology/National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nasim Khorshidian
- Food Safety Research Center (Salt), School of Nutrition and Food Sciences, Semnan University of Medical Sciences, Semnan, Iran
| | - Mojtaba Yousefi
- Food Safety Research Center (Salt), School of Nutrition and Food Sciences, Semnan University of Medical Sciences, Semnan, Iran
| | - Seyed Hadi Razavi
- Department of Food Science, Engineering and Technology, Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj, Iran.
| | - Amir Mohammad Mortazavian
- Department of Food Technology, Faculty of Nutrition Sciences and Food Technology/National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Devi P, Rathor S, Sharma P, Sen J, Kaur H, Singh J. Development of novel gastroretentive salbutamol sulfate-loaded sodium alginate-pectin bubble beads prepared by co-axial needle air-injection method and in vivo clinical evaluation by ultrasound studies. Eur J Pharm Sci 2018; 122:359-373. [PMID: 30017846 DOI: 10.1016/j.ejps.2018.07.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 06/22/2018] [Accepted: 07/06/2018] [Indexed: 11/28/2022]
Abstract
In the present study, the salbutamol sulfate-loaded sodium alginate-pectin (SS-loaded SA-PEC) bubble beads have been optimized and evaluated for drug loading, in vitro drug release, in vivo floating behavior in the stomach, etc. Nine batches (F1-F9) of bubble beads with different SA and PEC contents were prepared by novel co-axial needle air-injection method and related to their percent drug loading efficiency (%DLE) and percent drug release at 4 h (%R4h) as response factors. The multivariate analysis has shown the effect of SA/PEC ratio, total polymer content, as well as their interaction on %DLE and %R4h. In the quantitative modeling, the satisfactory adjustment of the linear models (along with interaction terms) with the experimental data for both %DLE and %R4h has confirmed the findings of the multivariate analysis. The optimized SS-loaded SA-PEC bubble beads based on 2D (contours), 3D, desirability, and overlay plots has exhibited %DLE of 87.35 ± 2.48% (n = 3 and error = 2.94%) and %R4h of 85.79 ± 2.98% (n = 3 and error = 0.25%). The in vitro drug release studies have shown almost complete (≥85%) SS release from all the batches within 4-6 h in simulated gastric fluid (SGF) pH 1.2. The in vivo clinical findings by ultrasound studies have shown excellent floatation (>6 h) behavior of bubble beads in the upper gastrointestinal tract (GIT) and efficient stomach-specific gastroretention.
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Affiliation(s)
- Pooja Devi
- College of Pharmacy, PGIMS, University of Health Sciences, Rohtak 124001, Haryana, India
| | - Sandeep Rathor
- College of Pharmacy, PGIMS, University of Health Sciences, Rohtak 124001, Haryana, India
| | - Pratibha Sharma
- College of Pharmacy, PGIMS, University of Health Sciences, Rohtak 124001, Haryana, India
| | - Jyotsna Sen
- Department of Radiodiagnosis, PGIMS, University of Health Sciences, Rohtak 124001, Haryana, India
| | - Harmeet Kaur
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak 124001, Haryana, India
| | - Jasbir Singh
- College of Pharmacy, PGIMS, University of Health Sciences, Rohtak 124001, Haryana, India.
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Lara-Espinoza C, Carvajal-Millán E, Balandrán-Quintana R, López-Franco Y, Rascón-Chu A. Pectin and Pectin-Based Composite Materials: Beyond Food Texture. Molecules 2018; 23:E942. [PMID: 29670040 PMCID: PMC6017442 DOI: 10.3390/molecules23040942] [Citation(s) in RCA: 186] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 04/07/2018] [Accepted: 04/12/2018] [Indexed: 12/03/2022] Open
Abstract
Pectins are plant cell wall natural heteropolysaccharides composed mainly of α-1-4 d-galacturonic acid units, which may or may not be methyl esterified, possesses neutral sugars branching that harbor functional moieties. Physicochemical features as pH, temperature, ions concentration, and cosolute presence, affect directly the extraction yield and gelling capacity of pectins. The chemical and structural features of this polysaccharide enables its interaction with a wide range of molecules, a property that scientists profit from to form new composite matrices for target/controlled delivery of therapeutic molecules, genes or cells. Considered a prebiotic dietary fiber, pectins meetmany regulations easily, regarding health applications within the pharmaceutical industry as a raw material and as an agent for the prevention of cancer. Thus, this review lists many emergent pectin-based composite materials which will probably palliate the impact of obesity, diabetes and heart disease, aid to forestall actual epidemics, expand the ken of food additives and food products design.
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Affiliation(s)
- Claudia Lara-Espinoza
- Research Center for Food and Development, CIAD, A.C., Carretera a La Victoria Km. 0.6, Hermosillo, Sonora 83304, Mexico.
| | - Elizabeth Carvajal-Millán
- Research Center for Food and Development, CIAD, A.C., Carretera a La Victoria Km. 0.6, Hermosillo, Sonora 83304, Mexico.
| | - René Balandrán-Quintana
- Research Center for Food and Development, CIAD, A.C., Carretera a La Victoria Km. 0.6, Hermosillo, Sonora 83304, Mexico.
| | - Yolanda López-Franco
- Research Center for Food and Development, CIAD, A.C., Carretera a La Victoria Km. 0.6, Hermosillo, Sonora 83304, Mexico.
| | - Agustín Rascón-Chu
- Research Center for Food and Development, CIAD, A.C., Carretera a La Victoria Km. 0.6, Hermosillo, Sonora 83304, Mexico.
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Cacicedo ML, Islan GA, Drachemberg MF, Alvarez VA, Bartel LC, Bolzán AD, Castro GR. Hybrid bacterial cellulose–pectin films for delivery of bioactive molecules. NEW J CHEM 2018. [DOI: 10.1039/c7nj03973e] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Novel biopolymeric films based on bacterial cellulose (BC) modified with high methoxylated pectin (HMP) were developed for drug delivery.
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Affiliation(s)
- Maximiliano L. Cacicedo
- Laboratorio de Nanobiomateriales
- CINDEFI
- Departamento de Química
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata-CONICET (CCT La Plata)
| | - Germán A. Islan
- Laboratorio de Nanobiomateriales
- CINDEFI
- Departamento de Química
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata-CONICET (CCT La Plata)
| | - M. Florencia Drachemberg
- Laboratorio de Nanobiomateriales
- CINDEFI
- Departamento de Química
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata-CONICET (CCT La Plata)
| | - Vera A. Alvarez
- Grupo de Materiales Compuestos (CoMP)
- INTEMA (National Research Institute of Material Science and Technology)
- Facultad de Ingeniería
- Universidad Nacional de Mar del Plata
- (B7608FDQ) Mar del Plata
| | - Laura C. Bartel
- Laboratorio de Citogenética y Mutagénesis
- Instituto Multidisciplinario de Biología Celular (IMBICE, CONICET-CCT La Plata – CICPBA)
- 1900 La Plata
- Argentina
| | - Alejandro D. Bolzán
- Laboratorio de Citogenética y Mutagénesis
- Instituto Multidisciplinario de Biología Celular (IMBICE, CONICET-CCT La Plata – CICPBA)
- 1900 La Plata
- Argentina
| | - Guillermo R. Castro
- Laboratorio de Nanobiomateriales
- CINDEFI
- Departamento de Química
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata-CONICET (CCT La Plata)
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Le-Deygen IM, Skuredina AA, Kudryashova EV. Drug delivery systems for fluoroquinolones: New prospects in tuberculosis treatment. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1068162017050077] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Biopolymer-based coacervates: Structures, functionality and applications in food products. Curr Opin Colloid Interface Sci 2017. [DOI: 10.1016/j.cocis.2017.03.006] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Kefiran-alginate gel microspheres for oral delivery of ciprofloxacin. Colloids Surf B Biointerfaces 2016; 145:706-715. [DOI: 10.1016/j.colsurfb.2016.05.078] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 05/06/2016] [Accepted: 05/27/2016] [Indexed: 01/01/2023]
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Chew SC, Nyam KL. Oxidative Stability of Microencapsulated Kenaf Seed Oil Using Co-extrusion Technology. J AM OIL CHEM SOC 2016. [DOI: 10.1007/s11746-016-2794-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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L Cacicedo M, E León I, S Gonzalez J, M Porto L, A Alvarez V, Castro GR. Modified bacterial cellulose scaffolds for localized doxorubicin release in human colorectal HT-29 cells. Colloids Surf B Biointerfaces 2016; 140:421-429. [PMID: 26784658 DOI: 10.1016/j.colsurfb.2016.01.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 12/06/2015] [Accepted: 01/03/2016] [Indexed: 02/03/2023]
Abstract
Bacterial cellulose (BC) films modified by the in situ method with the addition of alginate (Alg) during the microbial cultivation of Gluconacetobacter hansenii under static conditions increased the loading of doxorubicin by at least three times. Biophysical analysis of BC-Alg films by scanning electron microscopy, thermogravimetry, X-ray diffraction and FTIR showed a highly homogeneous interpenetrated network scaffold without changes in the BC crystalline structure but with an increased amorphous phase. The main molecular interactions determined by FTIR between both biopolymers clearly suggest high compatibility. These results indicate that alginate plays a key role in the biophysical properties of the hybrid BC matrix. BC-Alg scaffold analysis by nitrogen adsorption isotherms revealed by the Brunauer-Emmett-Teller (BET) method an increase in surface area of about 84% and in pore volume of more than 200%. The Barrett-Joyner-Halenda (BJH) model also showed an increase of about 25% in the pore size compared to the BC film. Loading BC-Alg scaffolds with different amounts of doxorubicin decreased the cell viability of HT-29 human colorectal adenocarcinoma cell line compared to the free Dox from around 95-53% after 24h and from 63% to 37% after 48 h. Dox kinetic release from the BC-Alg nanocomposite displayed hyperbolic curves related to the different amounts of drug payload and was stable for at least 14 days. The results of the BC-Alg nanocomposites show a promissory potential for anticancer therapies of solid tumors.
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Affiliation(s)
- Maximiliano L Cacicedo
- Nanobiomaterials Laboratory, Institute of Applied Biotechnology (CINDEFI, UNLP-CONICET-CCT La Plata), Department of Chemistry, School of Sciences, Universidad Nacional de La Plata, Calle 47 y115, CP 1900 La Plata, Argentina
| | - Ignacio E León
- Chemical Inorganic Center (CEQUINOR, UNLP, CONICET), School of Sciences, Universidad Nacional de La Plata (UNLP), Calle 47 y 115, (1900) La Plata, Argentina
| | - Jimena S Gonzalez
- CoMP (Composite Materials Group), Research Institute of Material Science and Technology (INTEMA), Engineering School, National University of Mar del Plata, Solis 7575, (B7608FDQ) Mar del Plata, Argentina
| | - Luismar M Porto
- Integrated Technologies Laboratory (InteLAB), CTC/EQA, Universidad Federal de Santa Catarina, Florianopolis, Brazil
| | - Vera A Alvarez
- CoMP (Composite Materials Group), Research Institute of Material Science and Technology (INTEMA), Engineering School, National University of Mar del Plata, Solis 7575, (B7608FDQ) Mar del Plata, Argentina
| | - Guillermo R Castro
- Nanobiomaterials Laboratory, Institute of Applied Biotechnology (CINDEFI, UNLP-CONICET-CCT La Plata), Department of Chemistry, School of Sciences, Universidad Nacional de La Plata, Calle 47 y115, CP 1900 La Plata, Argentina.
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Islan GA, Dini C, Bartel LC, Bolzán AD, Castro GR. Characterization of smart auto-degradative hydrogel matrix containing alginate lyase to enhance levofloxacin delivery against bacterial biofilms. Int J Pharm 2015; 496:953-64. [DOI: 10.1016/j.ijpharm.2015.10.050] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 09/23/2015] [Accepted: 10/17/2015] [Indexed: 02/01/2023]
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Development and characterization of new enzymatic modified hybrid calcium carbonate microparticles to obtain nano-architectured surfaces for enhanced drug loading. J Colloid Interface Sci 2015; 439:76-87. [DOI: 10.1016/j.jcis.2014.10.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 10/07/2014] [Accepted: 10/09/2014] [Indexed: 01/09/2023]
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Islan GA, Mukherjee A, Castro GR. Development of biopolymer nanocomposite for silver nanoparticles and Ciprofloxacin controlled release. Int J Biol Macromol 2014; 72:740-50. [PMID: 25256547 DOI: 10.1016/j.ijbiomac.2014.09.020] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Revised: 08/12/2014] [Accepted: 09/07/2014] [Indexed: 01/16/2023]
Abstract
Screening of biopolymeric gel beads containing Silver NanoParticles (Ag-NPs) stabilized in Guar Gum Alkyl Amine (GGAA) and Ciprofloxacin (Cip) was carried out in order to obtain a novel nanocomposite with controlled release profile of both antimicrobians. The selected matrix composed of Alginate/High Methoxyl Pectin (HMP)/GGAA (4:4:1) was able to co-incorporate Ag-NPs and Cip with encapsulation efficiency higher than 70%. SEM images revealed good cohesivity and compatibility between the biopolymers and the cargos. Beads provided protection against Ag-NPs degradation at acidic pHs and HMP would played a key role providing hydrophobic regions. While Cip release profile showed a pH independent diffusional process, Ag-NPs release was restricted to matrix erodability. Calcium quelating agents and/or alginate degrading enzymes could modulate the release profile. The bactericidal activity of beads was tested in liquid medium, showing cooperative effects between the antimicrobials against Pseudomonas aeruginosa, Escherichia coli, Bacillus cereus and Staphylococcus aureus. TEM images confirmed interaction of Ag-NPs with bacterial surfaces followed by membrane damage. Results suggested the nanocomposite matrix as a promising system for oral treatment of intestinal infectious diseases caused by multidrug resistant and unknown microorganisms, since both Cip and Ag-NPs would be able to reach intestine in the active form.
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Affiliation(s)
- German A Islan
- Nanobiomaterials Laboratory, Institute of Applied Biotechnology CINDEFI (UNLP-CONICET, CCT La Plata), Dept of Chemistry, School of Sciences, Universidad Nacional de La Plata, Calle 47y 115, La Plata 1900, Argentina
| | - Arup Mukherjee
- Department of Chemical Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, India
| | - Guillermo R Castro
- Nanobiomaterials Laboratory, Institute of Applied Biotechnology CINDEFI (UNLP-CONICET, CCT La Plata), Dept of Chemistry, School of Sciences, Universidad Nacional de La Plata, Calle 47y 115, La Plata 1900, Argentina.
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Khaksar R, Hosseini SM, Hosseini H, Shojaee-Aliabadi S, Mohammadifar MA, Mortazavian AM, khosravi-Darani K, Haji Seyed Javadi N, Komeily R. Nisin-loaded alginate-high methoxy pectin microparticles: preparation and physicochemical characterisation. Int J Food Sci Technol 2014. [DOI: 10.1111/ijfs.12516] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ramin Khaksar
- Department of Food Science and Technology; Faculty of Nutrition Sciences and Food Technology; National Nutrition and Food Technology Research Institute; Shahid Beheshti University of Medical Sciences; P.O. Box 19395-4741 Tehran Iran
| | - Seyede Marzieh Hosseini
- Department of Food Science and Technology; Faculty of Nutrition Sciences and Food Technology; National Nutrition and Food Technology Research Institute; Shahid Beheshti University of Medical Sciences; P.O. Box 19395-4741 Tehran Iran
- Student Research Committee; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - Hedayat Hosseini
- Department of Food Science and Technology; Faculty of Nutrition Sciences and Food Technology; National Nutrition and Food Technology Research Institute; Shahid Beheshti University of Medical Sciences; P.O. Box 19395-4741 Tehran Iran
| | - Saeedeh Shojaee-Aliabadi
- Department of Food Science and Technology; Faculty of Nutrition Sciences and Food Technology; National Nutrition and Food Technology Research Institute; Shahid Beheshti University of Medical Sciences; P.O. Box 19395-4741 Tehran Iran
| | - Mohammad Amin Mohammadifar
- Department of Food Science and Technology; Faculty of Nutrition Sciences and Food Technology; National Nutrition and Food Technology Research Institute; Shahid Beheshti University of Medical Sciences; P.O. Box 19395-4741 Tehran Iran
| | - Amir Mohammad Mortazavian
- Department of Food Science and Technology; Faculty of Nutrition Sciences and Food Technology; National Nutrition and Food Technology Research Institute; Shahid Beheshti University of Medical Sciences; P.O. Box 19395-4741 Tehran Iran
| | - Kianoosh khosravi-Darani
- Research Department of Food Technology; Faculty of Nutrition Sciences and Food Technology; National Nutrition and Food Technology Research Institute; Shahid Beheshti University of Medical Science; P.O. Box 19395-4741 Tehran Iran
| | - Nasrin Haji Seyed Javadi
- Research Department of Food Technology; Faculty of Nutrition Sciences and Food Technology; National Nutrition and Food Technology Research Institute; Shahid Beheshti University of Medical Science; P.O. Box 19395-4741 Tehran Iran
| | - Rozita Komeily
- Research Department of Food Technology; Faculty of Nutrition Sciences and Food Technology; National Nutrition and Food Technology Research Institute; Shahid Beheshti University of Medical Science; P.O. Box 19395-4741 Tehran Iran
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Corrêa GG, Morais EC, Brambilla R, Bernardes AA, Radtke C, Dezen D, Júnior AV, Fronza N, Santos JHZD. Effects of the sol-gel route on the structural characteristics and antibacterial activity of silica-encapsulated gentamicin. Colloids Surf B Biointerfaces 2014; 116:510-7. [PMID: 24572495 DOI: 10.1016/j.colsurfb.2014.01.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 12/23/2013] [Accepted: 01/21/2014] [Indexed: 10/25/2022]
Abstract
The effects of sol-gel processes, i.e., acid-catalyzed gelation, base-catalyzed gelation and base-catalyzed precipitation routes, on the encapsulation of gentamicin were investigated. The resulting xerogels were characterized using a series of complementary instrumental techniques, i.e., the adsorption/desorption of nitrogen, small-angle X-ray scattering, Fourier transform infrared spectroscopy, diffuse reflectance spectroscopy, X-ray photoelectron spectroscopy, atomic force microscopy and scanning electron microscopy. The encapsulated gentamicin samples were tested against a series of Gram-positive and Gram-negative bacterial strains. The best antimicrobial activity was observed with the encapsulated gentamicin that was prepared via the precipitation route, even in comparison with the neat antibiotic, especially in the case of the Gram-positive strain Staphylococcus aureus. The gentamicin concentration on the outermost surface and the zeta potential were identified as factors that affected the highest efficiency, as observed in the case of encapsulation via the base-catalyzed process.
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Affiliation(s)
- G G Corrêa
- Universidade Federal do Rio Grande do Sul, Instituto de Química, Av. Bento Gonçalves, 9500, Porto Alegre 91501-970, RS, Brazil
| | - E C Morais
- Universidade Federal do Rio Grande do Sul, Instituto de Química, Av. Bento Gonçalves, 9500, Porto Alegre 91501-970, RS, Brazil
| | - R Brambilla
- Universidade Federal do Rio Grande do Sul, Instituto de Química, Av. Bento Gonçalves, 9500, Porto Alegre 91501-970, RS, Brazil
| | - A A Bernardes
- Universidade Federal do Rio Grande do Sul, Instituto de Química, Av. Bento Gonçalves, 9500, Porto Alegre 91501-970, RS, Brazil
| | - C Radtke
- Universidade Federal do Rio Grande do Sul, Instituto de Química, Av. Bento Gonçalves, 9500, Porto Alegre 91501-970, RS, Brazil
| | - D Dezen
- Instituto Federal de Educação, Ciência e Tecnologia Catarinense, Campus Concórdia, SC, Brazil
| | - A V Júnior
- Instituto Federal de Educação, Ciência e Tecnologia Catarinense, Campus Concórdia, SC, Brazil
| | - N Fronza
- Instituto Federal de Educação, Ciência e Tecnologia Catarinense, Campus Concórdia, SC, Brazil
| | - J H Z Dos Santos
- Universidade Federal do Rio Grande do Sul, Instituto de Química, Av. Bento Gonçalves, 9500, Porto Alegre 91501-970, RS, Brazil.
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Islan GA, Castro GR. Tailoring of alginate-gelatin microspheres properties for oral Ciprofloxacin-controlled release against Pseudomonas aeruginosa. Drug Deliv 2014; 21:615-26. [PMID: 24401147 DOI: 10.3109/10717544.2013.870257] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
CONTEXT Ciprofloxacin (Cip) is a broad spectrum antibiotic frequently used in the treatment of infectious diseases caused by Pseudomonas aeruginosa. Cip oral administration is commonly associated with poor drug biodisponibility, gastrointestinal tract irritation, and toxic undesirable side effects. OBJECTIVE The aim of this work is to provide an oral biopolymeric system for controlled release of Cip. MATERIALS AND METHODS Alginate-gelatin blend microspheres were crosslinked in the presence of 1,2-propylene glycol, calcium, and glutaraldehyde. Studies of Cip encapsulation and release were performed. Matrix characteristics were studied simultaneously by optical microscopy and Fourier transform infrared spectroscopy (FTIR) using synchrotron light, and by texturometric analysis. Microsphere surface topologies were observed by scanning electron microscopy (SEM), atomic force microscopy (AFM), and epifluorescence microscopy. RESULTS Microspheres crosslinked with glutaraldehyde showed about 80% Cip encapsulation and less than 10% Cip release under simulated gastric conditions in 15 min, while a controlled release profile was observed at intestinal environment conditions. Antimicrobial activity against P. aeruginosa showed an increasing bacterial growth inhibition in time. Finally, bovine serum albumin (BSA) was used as model protein for binding of macromolecules onto active surface of microspheres, with a consequently modulation of Cip release. DISCUSSION AND CONCLUSIONS The results are indicating that alginate/gelatin matrix crosslinked via Ca(2+) and glutaraldehyde can be tailored by decorating the microsphere surface with biological active molecules useful for targeting, making a potential tool to improve Cip oral administration for infection diseases.
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Affiliation(s)
- German A Islan
- Nanobiomaterials Laboratory, Institute of Applied Biotechnology (CINDEFI, UNLP-CONICET CCT La Plata) -- Department of Chemistry, School of Sciences, Universidad Nacional de La Plata , La Plata , Argentina
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Co-extrusion encapsulation of canola oil with alginate: Effect of quercetin addition to oil core and pectin addition to alginate shell on oil stability. Food Res Int 2013. [DOI: 10.1016/j.foodres.2013.08.038] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Islan GA, Bosio VE, Castro GR. Alginate lyase and ciprofloxacin co-immobilization on biopolymeric microspheres for cystic fibrosis treatment. Macromol Biosci 2013; 13:1238-48. [PMID: 23966229 DOI: 10.1002/mabi.201300134] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2013] [Revised: 04/25/2013] [Indexed: 11/11/2022]
Abstract
A new formulation is described based on biopolymeric microspheres containing alginate lyase (AL) and ciprofloxacin (Cip) for sustainable oral delivery in CF patients. Alginate (ALG) and high-methoxyl pectin (HMP) are selected as the biopolymers to develop a composite matrix. ALG microspheres coated with HMP and ALG-HMP blend are gelled in water/organic solvents mixtures, obtaining Cip encapsulations from 46.0 to 100.0%. ALG-HMP shows a Cip sustainable release profile and is able to encapsulate 90.0% of AL, showing 76.0% enzyme activity after release under simulated intestinal conditions. The developed system is a promising delivery carrier to treat chronic infection of Pseudomonas aeruginosa and to reduce the viscoelasticity of the mucus accumulated into intestine of CF patients.
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Affiliation(s)
- German A Islan
- Nanobiomaterials Laboratory, Applied Biotechnology Institute (CINDEFI, UNLP-CONICET CCT La Plata) - School of Sciences, Universidad Nacional de La Plata, Calle 47 y 115, CP 1900, La Plata, Argentina
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Novel Biopolymer Matrices for Microencapsulation of Phages: Enhanced Protection Against Acidity and Protease Activity. Macromol Biosci 2012; 12:1200-8. [DOI: 10.1002/mabi.201200109] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Indexed: 01/19/2023]
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