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Ciani M, Decorosi F, Ratti C, De Philippis R, Adessi A. Semi-continuous cultivation of EPS-producing marine cyanobacteria: A green biotechnology to remove dissolved metals obtaining metal-organic materials. N Biotechnol 2024; 82:33-42. [PMID: 38714292 DOI: 10.1016/j.nbt.2024.04.004] [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: 01/15/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/09/2024]
Abstract
Given the necessity for bioprocesses scaling-up, the present study aims to explore the potential of three marine cyanobacteria and a consortium, cultivated in semi-continuous mode, as a green approach for i) continuous exopolysaccharide-rich biomass production and ii) removal of positively charged metals (Cu, Ni, Zn) from mono and multi-metallic solutions. To ensure the effectiveness of both cellular and released exopolysaccharides, weekly harvested whole cultures were confined in dialysis tubings. The results revealed that all the tested cyanobacteria have a stronger affinity towards Cu in mono and three-metal systems. Despite the amount of metals removed per gram of biomass decreased with higher biosorbent dosage, the more soluble carbohydrates were produced, the greater was the metal uptake, underscoring the pivotal role of released exopolysaccharides in metal biosorption. According to this, Dactylococcopsis salina 16Som2 showed the highest carbohydrate productivity (142 mg L-1 d-1) and metal uptake (84 mg Cu g-1 biomass) representing a promising candidate for further studies. The semi-continuous cultivation of marine cyanobacteria here reported assures a schedulable production of exopolysaccharide-rich biosorbents with high metal removal and recovery potential, even from multi-metallic solutions, as a step forward in the industrial application of cyanobacteria.
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Affiliation(s)
- Matilde Ciani
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Piazzale delle Cascine, 18, 50144 Florence, Italy
| | - Francesca Decorosi
- Genexpress Laboratory, Department of Agronomy, Food, Environmental and Forestry Sciences (DAGRI), University of Florence, I-50019 Sesto Fiorentino, Italy
| | - Claudio Ratti
- Department of Agricultural and Food Sciences, University of Bologna, Viale G. Fanin, 40, 40127 Bologna, Italy
| | - Roberto De Philippis
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Piazzale delle Cascine, 18, 50144 Florence, Italy
| | - Alessandra Adessi
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Piazzale delle Cascine, 18, 50144 Florence, Italy.
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2
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Platon IV, Ghiorghita CA, Lazar MM, Aprotosoaie AC, Gradinaru AC, Nacu I, Verestiuc L, Nicolescu A, Ciocarlan N, Dinu MV. Highly Compressible, Superabsorbent, and Biocompatible Hybrid Cryogel Constructs Comprising Functionalized Chitosan and St. John's Wort Extract. Biomacromolecules 2024; 25:5081-5097. [PMID: 38990059 DOI: 10.1021/acs.biomac.4c00496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
Biobased porous hydrogels enriched with phytocompounds-rich herbal extracts have aroused great interest in recent years, especially in healthcare. In this study, new macroporous hybrid cryogel constructs comprising thiourea-containing chitosan (CSTU) derivative and a Hypericum perforatum L. extract (HYPE), commonly known as St John's wort, were prepared by a facile one-pot ice-templating strategy. Benefiting from the strong interactions between the functional groups of the CSTU matrix and those of polyphenols in HYPE, the hybrid cryogels possess excellent liquid absorption capacity, mechanical resilience, antioxidant performance, and a broad spectrum of antibacterial activity simultaneously. Thus, owing to their design, the hybrid constructs exhibit an interconnected porous architecture with the ability to absorb over 33 and 136 times their dry weight, respectively, when contacted with a phosphate buffer solution (pH 7.4) and an acidic aqueous solution (pH 2). These cryogel constructs have extremely high compressive strengths ranging from 839 to 1045 kPa and withstand elevated strains of over 70% without developing fractures. Moreover, the water-swollen hybrid cryogels with the highest HYPE content revealed a complete and instant shape recovery after uniaxial compression. The incorporation of HYPE into CSTU cryogels enabled substantial improvement in scavenging reactive oxygen species and an expanded antibacterial spectrum toward multiple pathogens, including Gram-positive bacteria (Staphylococcus aureus and Staphylococcus epidermidis), Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa), and fungi (Candida albicans). Cell viability experiments demonstrated the cytocompatibility of the 3D cryogel constructs, which did not induce changes in the fibroblast morphology. This work showcases a simple and effective strategy to immobilize HYPE extracts on CSTU 3D networks, allowing the development of novel multifunctional platforms with promising potential in hemostasis, wound dressing, and dermal regeneration scaffolds.
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Affiliation(s)
- Ioana-Victoria Platon
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, Iasi 700487, Romania
| | | | - Maria Marinela Lazar
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, Iasi 700487, Romania
| | - Ana Clara Aprotosoaie
- Faculty of Pharmacy, "Grigore T. Popa" University of Medicine and Pharmacy, Universitatii Street 16, Iasi 700115, Romania
| | - Adina Catinca Gradinaru
- Faculty of Pharmacy, "Grigore T. Popa" University of Medicine and Pharmacy, Universitatii Street 16, Iasi 700115, Romania
| | - Isabella Nacu
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, Iasi 700487, Romania
- Faculty of Medical Bioengineering, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi 700115, Romania
| | - Liliana Verestiuc
- Faculty of Medical Bioengineering, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi 700115, Romania
| | - Alina Nicolescu
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, Iasi 700487, Romania
| | - Nina Ciocarlan
- Botanical Garden, Academy of Sciences of Moldova, Padurii Street 18, Chisinau 2002, Republic of Moldova
| | - Maria Valentina Dinu
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, Iasi 700487, Romania
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Liu S, Feng Y, Tan Y, Chen J, Yang T, Wang X, Li L, Wang F, Liang H, Zhong JL, Qi C, Lei X. Photosensitizer-loaded hydrogels: A new antibacterial dressing. Wound Repair Regen 2024; 32:301-313. [PMID: 38308577 DOI: 10.1111/wrr.13156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 11/29/2023] [Accepted: 12/27/2023] [Indexed: 02/05/2024]
Abstract
Bacterial wound infection has emerged as a pivotal threat to human health worldwide, and the situation has worsened owing to the gradual increase in antibiotic-resistant bacteria caused by the improper use of antibiotics. To reduce the use of antibiotics and avoid the increase in antibiotic-resistant bacteria, researchers are increasingly paying attention to photodynamic therapy, which uses light to produce reactive oxygen species to kill bacteria. Treating bacteria-infected wounds by photodynamic therapy requires fixing the photosensitizer (PS) at the wound site and maintaining a certain level of wound humidity. Hydrogels are materials with a high water content and are well suited for fixing PSs at wound sites for antibacterial photodynamic therapy. Therefore, hydrogels are often loaded with PSs for treating bacteria-infected wounds via antibacterial photodynamic therapy. In this review, we systematically summarised the antibacterial mechanisms and applications of PS-loaded hydrogels for treating bacteria-infected wounds via photodynamic therapy. In addition, the recent studies and the research status progresses of novel antibacterial hydrogels are discussed. Finally, the challenges and future prospects of PS-loaded hydrogels are reviewed.
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Affiliation(s)
- Shunying Liu
- Department of Dermatology, Daping Hospital, Army Medical University, Chongqing, China
- Chongqing Engineering Research Center of Organ Intelligent Bio-Manufacturing, Chongqing, China
| | - Yanhai Feng
- Department of Dermatology, Daping Hospital, Army Medical University, Chongqing, China
- Chongqing Engineering Research Center of Organ Intelligent Bio-Manufacturing, Chongqing, China
- Army 953 Hospital, Shigatse Branch of Xinqiao Hospital, Army Medical University, Shigatse, China
| | - Yang Tan
- Department of Dermatology, Daping Hospital, Army Medical University, Chongqing, China
- Chongqing Engineering Research Center of Organ Intelligent Bio-Manufacturing, Chongqing, China
| | - Jinyi Chen
- Department of Dermatology, Daping Hospital, Army Medical University, Chongqing, China
- Chongqing Engineering Research Center of Organ Intelligent Bio-Manufacturing, Chongqing, China
| | - Tao Yang
- Department of Dermatology, Daping Hospital, Army Medical University, Chongqing, China
- Chongqing Engineering Research Center of Organ Intelligent Bio-Manufacturing, Chongqing, China
| | - Xiaoyu Wang
- Department of Dermatology, Daping Hospital, Army Medical University, Chongqing, China
- Chongqing Engineering Research Center of Organ Intelligent Bio-Manufacturing, Chongqing, China
| | - Lingfei Li
- Department of Dermatology, Daping Hospital, Army Medical University, Chongqing, China
- Chongqing Engineering Research Center of Organ Intelligent Bio-Manufacturing, Chongqing, China
| | - Fangjie Wang
- The First Research Department, Daping Hospital, Army Medical University, Chongqing, China
| | - Huaping Liang
- The First Research Department, Daping Hospital, Army Medical University, Chongqing, China
| | - Julia-Li Zhong
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Chao Qi
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Xia Lei
- Department of Dermatology, Daping Hospital, Army Medical University, Chongqing, China
- Chongqing Engineering Research Center of Organ Intelligent Bio-Manufacturing, Chongqing, China
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Vazquez-Ayala L, Del Ángel-Olarte C, Escobar-García DM, Rosales-Mendoza S, Solis-Andrade I, Pozos-Guillén A, Palestino G. Chitosan sponges loaded with metformin and microalgae as dressing for wound healing: A study in diabetic bio-models. Int J Biol Macromol 2024; 254:127691. [PMID: 37898249 DOI: 10.1016/j.ijbiomac.2023.127691] [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: 03/03/2023] [Revised: 10/21/2023] [Accepted: 10/25/2023] [Indexed: 10/30/2023]
Abstract
Among the conditions caused by diabetes, the diabetic foot is a significant public health problem due to its delayed healing process. That makes it essential to design, manufacture, and apply auxiliary dressings during healing. In this work, chitosan sponges were developed and evaluated as wound dressings. Metformin, fucoidan, and exopolysaccharide from Porphyridium purpureum algae were loaded into the sponges and studied as healing promoters. The composite sponges were physicochemically, morphologically, and thermally characterized, allowing us to determine the chemical mechanisms involved in the sponge formation. The mechanical analysis demonstrated that sponge composites have shape memory and good mechanical performance under compression stress, showing a compressive strength above 30 kPa. These results correlated with the materials' porosity, influencing the swelling capacity that reached a maximum of 70 %. The morphology of materials was observed by SEM, resulting in folded films with surface porosity. The results of the biocompatibility tests confirmed that the materials are not cytotoxic or hemolytic and have good antibacterial activity. In vivo wound healing evaluation showed that metformin-loaded chitosan sponges regenerated skin tissue after 21 days of treatment, highlighting the rate of healing provided when exopolysaccharide was added to promote tissue regeneration, which can be corroborated by histological analysis. These results make chitosan sponge compounds promising dressings for diabetic foot wound treatment.
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Affiliation(s)
- Laura Vazquez-Ayala
- Grupo de Biopolímeros y Nanoestructuras, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6, San Luis Potosí 78210, Mexico; Sección de Biotecnología, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, Lomas 2a. sección, San Luis Potosí 78210, Mexico
| | - César Del Ángel-Olarte
- Grupo de Biopolímeros y Nanoestructuras, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6, San Luis Potosí 78210, Mexico
| | - Diana María Escobar-García
- Laboratorio de Ciencias Básicas, Universidad Autónoma de San Luis Potosí, Facultad de Estomatología, Av. Dr. Manuel Nava No. 2, San Luis Potosí 78290, Mexico
| | - Sergio Rosales-Mendoza
- Grupo de Biopolímeros y Nanoestructuras, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6, San Luis Potosí 78210, Mexico; Sección de Biotecnología, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, Lomas 2a. sección, San Luis Potosí 78210, Mexico
| | - Ivon Solis-Andrade
- Sección de Biotecnología, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, Lomas 2a. sección, San Luis Potosí 78210, Mexico
| | - Amaury Pozos-Guillén
- Laboratorio de Ciencias Básicas, Universidad Autónoma de San Luis Potosí, Facultad de Estomatología, Av. Dr. Manuel Nava No. 2, San Luis Potosí 78290, Mexico
| | - Gabriela Palestino
- Grupo de Biopolímeros y Nanoestructuras, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6, San Luis Potosí 78210, Mexico; Sección de Biotecnología, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, Lomas 2a. sección, San Luis Potosí 78210, Mexico.
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Abdullah BA, Basyigit B, Karaaslan M. Drying Technique Providing Maximum Benefits on Hydrogelling Ability of Avocado Seed Protein: Spray Drying. Foods 2023; 12:4219. [PMID: 38231597 DOI: 10.3390/foods12234219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 01/19/2024] Open
Abstract
The current study focused on creating natural hydrogels consisting of mixtures of avocado seed proteins dried with different techniques and locust bean gum. Proteins were extracted from avocado seed by alkali and isoelectric precipitation methods. Avocado seed proteins were dried by five different drying methods, namely ambient drying, oven drying, vacuum drying, freeze drying, and spray drying. FT-IR spectra were used to analyze the chemical structure of proteins dried using various techniques. Additionally, hydrogel models were constructed in the presence of avocado seed proteins and locust bean gum to clarify the effect of drying techniques on their hydrogelling ability. The impact of drying techniques on the functional behavior of hydrogels was notable. The maximum water holding capacity values were detected in the hydrogel system containing spray-dried proteins (93.79%), followed by freeze-dried (86.83%), vacuum-dried (76.17%), oven-dried (72.29%), and ambient-dried (64.8%) counterparts. The swelling ratio was 34.10, 33.51, 23.05, 18.93, and 14.39% for gels in the presence of freeze-dried, spray-dried, vacuum-dried, oven-dried, and ambient-dried proteins, respectively. Additionally, the desirable values for the amount of protein leaking from the systems prepared using spray-dried (7.99%) and freeze-dried (12.14%) proteins were obtained compared to others (ambient-dried: 24.03%; oven-dried: 17.69%; vacuum-dried: 19.10%). Superior results in terms of textural properties were achieved in hydrogel models containing spray-dried and freeze-dried proteins. In general, hydrogel models exhibited elastic behavior rather than viscous properties; however, the magnitudes of elasticity varied. Furthermore, the success of gels containing hydrogel models containing spray-dried protein and locust bean gum in the bioactive compound delivery system was obvious compared with protein ones alone.
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Affiliation(s)
- Bakhtiyar Azad Abdullah
- Department of Biology, Faculty of Science and Health, Koya University, Danielle Mitterrand Boulevard, Koya KOY45, Kurdistan Region-F.R., Iraq
- Food Engineering Department, Engineering Faculty, Harran University, Sanliurfa 63000, Turkey
| | - Bulent Basyigit
- Food Engineering Department, Engineering Faculty, Harran University, Sanliurfa 63000, Turkey
| | - Mehmet Karaaslan
- Food Engineering Department, Engineering Faculty, Harran University, Sanliurfa 63000, Turkey
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Feyissa Z, Edossa GD, Gupta NK, Negera D. Development of double crosslinked sodium alginate/chitosan based hydrogels for controlled release of metronidazole and its antibacterial activity. Heliyon 2023; 9:e20144. [PMID: 37809897 PMCID: PMC10559936 DOI: 10.1016/j.heliyon.2023.e20144] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 09/08/2023] [Accepted: 09/13/2023] [Indexed: 10/10/2023] Open
Abstract
Double network sodium alginate/chitosan hydrogels were prepared using calcium chloride (CaCl2) and glutaraldehyde as the crosslinking agents by the ionotropic interaction method for controlled metronidazole release. The effect of polymer ratios and CaCl2 amount is investigated by the developing porosity, gel fraction, and extent of swelling in simulated physiological fluids. Interaction between the polymers with the formation of crosslinked structures, good stability, phase nature, and morphology of the hydrogels is revealed by Fourier-transform infrared spectroscopy, thermogravimetric analysis, X-ray diffraction, and scanning electron microscopy. A sodium alginate/chitosan hydrogel (weight ratio of 75:25) crosslinked with two percent CaCl2 is chosen for the in-situ loading of 200 mg of metronidazole. The drug release kinetics using different models show that the best-fit Korsmeyer-Peppas model suggests metronidazole release from the matrix follows diffusion and swelling-controlled time-dependent non-Fickian transport related to hydrogel erosion. This composition displays enhanced antimicrobial activity against Staphylococcus aureus and Escherichia coli.
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Affiliation(s)
- Zerihun Feyissa
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama, Ethiopia
| | - Gemechu Deressa Edossa
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama, Ethiopia
| | - Neeraj Kumar Gupta
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama, Ethiopia
| | - Defaru Negera
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama, Ethiopia
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Taheri A, Kashaninejad M, Tamaddon AM, Du J, Jafari SM. Rheological Characteristics of Soluble Cress Seed Mucilage and β-Lactoglobulin Complexes with Salts Addition: Rheological Evidence of Structural Rearrangement. Gels 2023; 9:485. [PMID: 37367155 DOI: 10.3390/gels9060485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/28/2023] Open
Abstract
Functional, physicochemical, and rheological properties of protein-polysaccharide complexes are remarkably under the influence of the quality of solvent or cosolute in a food system. Here, a comprehensive description of the rheological properties and microstructural peculiarities of cress seed mucilage (CSM)-β-lactoglobulin (Blg) complexes are discussed in the presence of CaCl2 (2-10 mM), (CSM-Blg-Ca), and NaCl (10-100 mM) (CSM-Blg-Na). Our results on steady-flow and oscillatory measurements indicated that shear thinning properties can be fitted well by the Herschel-Bulkley model and by the formation of highly interconnected gel structures in the complexes, respectively. Analyzing the rheological and structural features simultaneously led to an understanding that formations of extra junctions and the rearrangement of the particles in the CSM-Blg-Ca could enhance elasticity and viscosity, as compared with the effect of CSM-Blg complex without salts. NaCl reduced the viscosity and dynamic rheological properties and intrinsic viscosity through the salt screening effect and dissociation of structure. Moreover, the compatibility and homogeneity of complexes were approved by dynamic rheometry based on the Cole-Cole plot supported by intrinsic viscosity and molecular parameters such as stiffness. The results outlined the importance of rheological properties as criteria for investigations that determine the strength of interaction while facilitating the fabrication of new structures in salt-containing foods that incorporate protein-polysaccharide complexes.
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Affiliation(s)
- Afsaneh Taheri
- Department of Food Process Engineering, Faculty of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan 49138-15739, Iran
- Food, Chemical and Biotechnology Cluster, Singapore Institute of Technology, 10 Dover Drive, Singapore 138683, Singapore
| | - Mahdi Kashaninejad
- Department of Food Process Engineering, Faculty of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan 49138-15739, Iran
| | - Ali Mohammad Tamaddon
- Department of Pharmaceutical Nanotechnology and Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz 71348-14336, Iran
| | - Juan Du
- Food, Chemical and Biotechnology Cluster, Singapore Institute of Technology, 10 Dover Drive, Singapore 138683, Singapore
| | - Seid Mahdi Jafari
- Department of Food Process Engineering, Faculty of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan 49138-15739, Iran
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Basyigit B. Designing Nanoliposome-in-Natural Hydrogel Hybrid System for Controllable Release of Essential Oil in Gastrointestinal Tract: A Novel Vehicle. Foods 2023; 12:foods12112242. [PMID: 37297484 DOI: 10.3390/foods12112242] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 05/28/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
In this study, thyme essential oil (essential oil to total lipid: 14.23, 20, 25, and 33.33%)-burdened nanoliposomes with/without maltodextrin solution were infused with natural hydrogels fabricated using equal volumes (1:1, v/v) of pea protein (30%) and gum Arabic (1.5%) solutions. The production process of the solutions infused with gels was verified using FTIR spectroscopy. In comparison to the nanoliposome solution (NL1) containing soybean lecithin and essential oil, the addition of maltodextrin (molar ratio of lecithin to maltodextrin: 0.80, 0.40, and 0.20 for NL2, NL3, and NL4, respectively) to these solutions led to a remarkable shift in particle size (487.10-664.40 nm), negative zeta potential (23.50-38.30 mV), and encapsulation efficiency (56.25-67.62%) values. Distortions in the three-dimensional structure of the hydrogel (H2) constructed in the presence of free (uncoated) essential oil were obvious in the photographs when compared to the control (H1) consisting of a pea protein-gum Arabic matrix. Additionally, the incorporation of NL1 caused visible deformations in the gel (HNL1). Porous surfaces were dominant in H1 and the hydrogels (HNL2, HNL3, and HNL4) containing NL2, NL3, and NL4 in the SEM images. The most convenient values for functional behaviors were found in H1 and HNL4, followed by HNL3, HNL2, HNL1, and H2. This hierarchical order was also valid for mechanical properties. The prominent hydrogels in terms of essential oil delivery throughout the simulated gastrointestinal tract were HNL2, HNL3, and HNL4. To sum up, findings showed the necessity of mediators such as maltodextrin in the establishment of such systems.
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Affiliation(s)
- Bulent Basyigit
- Food Engineering Department, Engineering Faculty, Harran University, 63000 Sanliurfa, Turkey
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9
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Ciani M, Adessi A. Cyanoremediation and phyconanotechnology: cyanobacteria for metal biosorption toward a circular economy. Front Microbiol 2023; 14:1166612. [PMID: 37323915 PMCID: PMC10266413 DOI: 10.3389/fmicb.2023.1166612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 05/09/2023] [Indexed: 06/17/2023] Open
Abstract
Cyanobacteria are widespread phototrophic microorganisms that represent a promising biotechnological tool to satisfy current sustainability and circularity requirements. They are potential bio-factories of a wide range of compounds that can be exploited in several fields including bioremediation and nanotechnology sectors. This article aims to illustrate the most recent trends in the use of cyanobacteria for the bioremoval (i.e., cyanoremediation) of heavy metals and metal recovery and reuse. Heavy metal biosorption by cyanobacteria can be combined with the consecutive valorization of the obtained metal-organic materials to get added-value compounds, including metal nanoparticles, opening the field of phyconanotechnology. It is thus possible that the use of combined approaches could increase the environmental and economic feasibility of cyanobacteria-based processes, promoting the transition toward a circular economy.
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10
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Başyiğit B, Altun G, Yücetepe M, Karaaslan A, Karaaslan M. Locust bean gum provides excellent mechanical and release attributes to soy protein-based natural hydrogels. Int J Biol Macromol 2023; 231:123352. [PMID: 36681221 DOI: 10.1016/j.ijbiomac.2023.123352] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 01/19/2023]
Abstract
The current study concentrated on designing soy protein (SP)-based natural hydrogels in the presence of locust bean gum (LBG). For this, the gums were recovered from the kernel of the relevant plant and incorporated into SP gel models. Three more hydrogels were fabricated using commercial carbohydrates (gum Arabic (GA), maltodextrin (MD), and pectin (PC)) to decipher exactly the ability of LBG in these models. The chemical and morphological structures of the samples were elaborated by FTIR and SEM analyses. The coexistence of protein and carbohydrates led to an enhancement in functional (water holding capacity (WHC), swelling ratio, protein leachability, volumetric gel index (VGI)) and mechanical (textural and rheological behavior) features of natural gels compared to SP alone (control) but the quality of hydrogels was impressed by the carbohydrate type. Hydrogels designed with LBG came to the fore in terms of these attributes. Additionally, these gel models created awareness for phenolic delivery.
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Affiliation(s)
- Bülent Başyiğit
- Harran University, Engineering Faculty, Food Engineering Department, 63000 Şanlıurfa, Turkey
| | - Gülbahar Altun
- Harran University, Engineering Faculty, Food Engineering Department, 63000 Şanlıurfa, Turkey
| | - Melike Yücetepe
- Harran University, Engineering Faculty, Food Engineering Department, 63000 Şanlıurfa, Turkey
| | - Asliye Karaaslan
- Harran University, Vocational School, Food Processing Programme, 63200 Şanlıurfa, Turkey
| | - Mehmet Karaaslan
- Harran University, Engineering Faculty, Food Engineering Department, 63000 Şanlıurfa, Turkey.
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pH-Responsive Super-Porous Hybrid Hydrogels for Gastroretentive Controlled-Release Drug Delivery. Pharmaceutics 2023; 15:pharmaceutics15030816. [PMID: 36986676 PMCID: PMC10053105 DOI: 10.3390/pharmaceutics15030816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/10/2023] [Accepted: 02/22/2023] [Indexed: 03/06/2023] Open
Abstract
Super-porous hydrogels are considered a potential drug delivery network for the sedation of gastric mechanisms with retention windows in the abdomen and upper part of the gastrointestinal tract (GIT). In this study, a novel pH-responsive super-porous hybrid hydrogels (SPHHs) was synthesized from pectin, poly 2-hydroxyethyl methacrylate (2HEMA), and N, N methylene-bis-acrylamide (BIS) via the gas-blowing technique, and then loaded with a selected drug (amoxicillin trihydrate, AT) at pH 5 via an aqueous loading method. The drug-loaded SPHHs-AT carrier demonstrated outstanding (in vitro) gastroretentive drug delivery capability. The study attributed excellent swelling and delayed drug release to acidic conditions at pH 1.2. Moreover, in vitro controlled-release drug delivery systems at different pH values, namely, 1.2 (97.99%) and 7.4 (88%), were studied. These exceptional features of SPHHs—improved elasticity, pH responsivity, and high swelling performance—should be investigated for broader drug delivery applications in the future.
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Antiviral and Antibacterial Sulfated Polysaccharide-Chitosan Nanocomposite Particles as a Drug Carrier. Molecules 2023; 28:molecules28052105. [PMID: 36903350 PMCID: PMC10003885 DOI: 10.3390/molecules28052105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 02/10/2023] [Accepted: 02/20/2023] [Indexed: 02/26/2023] Open
Abstract
Drug delivery system (DDS) refers to the method of delivering drugs to the targeted sites with minimal risk. One popular strategy of DDS is using nanoparticles as a drug carrier, which are made from biocompatible and degradable polymers. Here, nanoparticles composed of Arthrospira-derived sulfated polysaccharide (AP) and chitosan were developed and expected to possess the capabilities of antiviral, antibacterial, and pH-sensitive properties. The composite nanoparticles, abbreviated as APC, were optimized for stability of morphology and size (~160 nm) in the physiological environment (pH = 7.4). Potent antibacterial (over 2 μg/mL) and antiviral (over 6.596 μg/mL) properties were verified in vitro. The pH-sensitive release behavior and release kinetics of drug-loaded APC nanoparticles were examined for various categories of drugs, including hydrophilic, hydrophobic, and protein drugs, under different pH values of the surroundings. Effects of APC nanoparticles were also evaluated in lung cancer cells and neural stem cells. The use of APC nanoparticles as a drug delivery system maintained the bioactivity of the drug to inhibit the proliferation of lung cancer cells (with ~40% reduction) and to relieve the growth inhibitory effect on neural stem cells. These findings indicate that the pH-sensitive and biocompatible composite nanoparticles of sulfated polysaccharide and chitosan well keep the antiviral and antibacterial properties and may serve as a promising multifunctional drug carrier for further biomedical applications.
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Guo Y, Zhang ZG, Cai J, Li WR, Chen LY, Wu WC. Co-folding of soy protein isolates and shellac by structural interplays to induce hydrogels. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Yehuda N, Gheber LA, Kushmaro A, (Mails) Arad S. Complexes of Cu-Polysaccharide of a Marine Red Microalga Produce Spikes with Antimicrobial Activity. Mar Drugs 2022; 20:md20120787. [PMID: 36547934 PMCID: PMC9783634 DOI: 10.3390/md20120787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/28/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Metal-polysaccharides have recently raised significant interest due to their multifunctional bioactivities. The antimicrobial activity of a complex of Cu2O with the sulfated polysaccharide (PS) of the marine red microalga Porphyridium sp. was previously attributed to spikes formed on the complex surface (roughness). This hypothesis was further examined here using other Cu-PS complexes (i.e., monovalent-Cu2O, CuCl and divalent-CuO, CuCl2). The nanostructure parameters of the monovalent complexes, namely, longer spikes (1000 nm) and greater density (2000-5000 spikes/µm2) were found to be related to the superior inhibition of microbial growth and viability and biofilm formation. When Escherichia coli TV1061, used as a bioluminescent test organism, was exposed to the monovalent Cu-PS complexes, enhanced bioluminescence accumulation was observed, probably due to membrane perforation by the spikes on the surface of the complexes and consequent cytoplasmic leakage. In addition, differences were found in the surface chemistry of the monovalent and divalent Cu-PS complexes, with the monovalent Cu-PS complexes exhibiting greater stability (ζ-potential, FTIR spectra, and leaching out), which could be related to spike formation. This study thus supports our hypothesis that the spikes protruding from the monovalent Cu-PS surfaces, as characterized by their aspect ratio, are responsible for the antimicrobial and antibiofilm activities of the complexes.
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Affiliation(s)
- Nofar Yehuda
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Levi A. Gheber
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- The Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Ariel Kushmaro
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- The Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- School of Sustainability and Climate Change, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Shoshana (Mails) Arad
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- Correspondence: ; Tel.: +972-747795257
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Thixotropic Red Microalgae Sulfated Polysaccharide-Peptide Composite Hydrogels as Scaffolds for Tissue Engineering. Biomedicines 2022; 10:biomedicines10061388. [PMID: 35740409 PMCID: PMC9220243 DOI: 10.3390/biomedicines10061388] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/04/2022] [Accepted: 06/07/2022] [Indexed: 11/21/2022] Open
Abstract
Sulfated polysaccharides of red marine microalgae have recently gained much attention for biomedical applications due to their anti-inflammatory and antioxidant properties. However, their low mechanical properties limit their use in tissue engineering. Herein, to enhance the mechanical properties of the sulfated polysaccharide produced by the red marine microalga, Porphyridium sp. (PS), it was integrated with the fluorenylmethoxycarbonyl diphenylalanine (FmocFF) peptide hydrogelator. Transparent, stable hydrogels were formed when mixing the two components at a 1:1 ratio in three different concentrations. Electron microscopy showed that all hydrogels exhibited a nanofibrous structure, mimicking the extracellular matrix. Furthermore, the hydrogels were injectable, and tunable mechanical properties were obtained by changing the hydrogel concentration. The composite hydrogels allowed the sustained release of curcumin which was controlled by the change in the hydrogel concentration. Finally, the hydrogels supported MC3T3-E1 preosteoblasts viability and calcium deposition. The synergy between the sulfated polysaccharide, with its unique bioactivities, and FmocFF peptide, with its structural and mechanical properties, bears a promising potential for developing novel tunable scaffolds for tissue engineering that may allow cell differentiation into various lineages.
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Kang J, Jia X, Wang N, Xiao M, Song S, Wu S, Li Z, Wang S, Cui SW, Guo Q. Insights into the structure-bioactivity relationships of marine sulfated polysaccharides: A review. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107049] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Colusse GA, Carneiro J, Duarte MER, Carvalho JCD, Noseda MD. Advances in microalgal cell wall polysaccharides: a review focused on structure, production, and biological application. Crit Rev Biotechnol 2021; 42:562-577. [PMID: 34320897 DOI: 10.1080/07388551.2021.1941750] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Microalgae have been shown to be useful in several biotechnological fields due to their feasible cultivation and high-value biomolecules production. Several substances of interest produced by microalgae, such as: proteins, lipids, and natural colorants, have already been explored. Based on the continuing demand for new natural molecules, microalgae could also be a valuable source of polysaccharides. Polysaccharides are extremely important in aquaculture, cosmetics, pharmaceutical, and food industries, and have great economic impact worldwide. Despite this, reviews on microalgal polysaccharide production, biological activity, and chemical structure are not abundant. Moreover, techniques of microalgal cultivation, coupled with carbohydrate production, need to be clarified in order to develop forward-looking technologies. The present review provides an overview of the main advances in microalgal cell wall polysaccharide production, as well as their associated potential biological applications and chemical structure. Several studies on future prospects, related to microalgae are presented, highlighting the key challenges in microalgal polysaccharide production.
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Affiliation(s)
- Guilherme Augusto Colusse
- Graduate Program in Bioprocess Engineering and Biotechnology, Federal University of Paraná, Curitiba, Brazil.,Biochemistry and Molecular Biology Department, Federal University of Paraná, Curitiba, Brazil
| | - Jaqueline Carneiro
- Biochemistry and Molecular Biology Department, Federal University of Paraná, Curitiba, Brazil
| | | | - Julio Cesar de Carvalho
- Bioprocess Engineering and Biotechnology Department, Federal University of Paraná, Curitiba, Brazil
| | - Miguel Daniel Noseda
- Biochemistry and Molecular Biology Department, Federal University of Paraná, Curitiba, Brazil
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Meléndez-Ortiz HI, Betancourt-Galindo R, Puente-Urbina B, Ledezma A, Rodríguez-Fernández O. Synthesis and characterization of hydrogels based on maltodextrins with antimicrobial properties. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1931209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- H. Iván Meléndez-Ortiz
- Polymerization Processes Division, CONACyT-Centro de Investigación en Química Aplicada, Saltillo, México
| | | | - Bertha Puente-Urbina
- Advanced Materials Division, Centro de Investigación en Química Aplicada, Saltillo, México
| | - Antonio Ledezma
- Advanced Materials Division, Centro de Investigación en Química Aplicada, Saltillo, México
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