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Yadav H, Maiti S. Poly(allylamine)-adorned heptylcarboxymethyl galactomannan nanocarriers of canagliflozin for controlling type-2 diabetes: Optimization by Box-Behnken design and in vivo performance. Int J Biol Macromol 2024; 277:134253. [PMID: 39084426 DOI: 10.1016/j.ijbiomac.2024.134253] [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: 05/13/2024] [Revised: 07/10/2024] [Accepted: 07/27/2024] [Indexed: 08/02/2024]
Abstract
In the past three decades, the prevalence of type-2 diabetes has arisen dramatically in countries of all income levels. A novel, most effective nanotechnology-based strategy may reduce the prevalence of diabetes. Recently, the shell-crosslinked polysaccharide-based micellar nanocarriers (MNCs) have shown great promise in terms of stability, controlled drug release, and improved in vivo performance. In this study, heptyl carboxymethyl guar gum was synthesized and characterized by ATR-FTIR, 1HNMR spectroscopy, surface charge, critical micelle concentration (23.9 μg/mL), and cytotoxicity analysis. Box-Behnken design was used to optimize the diameter, zeta potential, drug entrapment efficiency (DEE), and drug release characteristics of poly (allylamine)-crosslinked MNCs containing canagliflozin. The optimized MNCs revealed spherical morphology under TEM and had 149.3 nm diameter (PDI 21.2 %), +53.8 mV zeta potential, and 84 % DEE. The MNCs released about 63 % of the drug in 12 h under varying pH of the simulated gastrointestinal fluid. DSC and x-ray analyses suggested amorphous dispersion of drugs in the MNCs. CAM assay demonstrated the biocompatibility of the MNCs. The MNCs showed hemolysis of <1 %, 85 % mucin adsorption, and stability over three months. The MNCs demonstrated excellent anti-diabetic efficacy in streptozotocin-nicotinamide-induced diabetic rats, continuously lowering blood glucose levels up to 12 h.
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Affiliation(s)
- Harsh Yadav
- Department of Pharmacy, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
| | - Sabyasachi Maiti
- Department of Pharmacy, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India.
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2
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Amjed N, Zeshan M, Farooq A, Naz S. Applications of guar gum polysaccharide for pharmaceutical drug delivery: A review. Int J Biol Macromol 2024; 257:128390. [PMID: 38043657 DOI: 10.1016/j.ijbiomac.2023.128390] [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: 09/29/2023] [Revised: 11/10/2023] [Accepted: 11/21/2023] [Indexed: 12/05/2023]
Abstract
Bio-based materials are rapidly replacing synthetic materials owing to their significant biomedical applications, easy availability, nontoxicity, biodegradability and biocompatibility. Guar gum (GG) is a plant-derived biocompatible and biodegradable polymeric compound found abundantly in nature. It is a non-ionic, hydrophilic carbohydrate and is a cost-effective hydrocolloid polysaccharide considered as a wonderful representative of the new generation of plant gums. Various composites of guar gum with other polymers have been reported in last few decades and they are extensively used in different industries like food, textile, mining, petrochemical, paper and explosives etc. Easy availability, non-toxicity, eco-friendly and biodegradable nature of GG has made it ideal candidate for for drug delivery (DD) applications. GG based hydrogels, films, scaffolds and nanoparticles have been explored widely for their DD applications. These non-toxic DD carriers can be used for targeted drug delivery. This review article directs the current efforts and improvements on GG and GG-based materials to be used in DD.
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Affiliation(s)
- Nyla Amjed
- Department of Chemistry, The University of Lahore, Pakistan.
| | - Muhammad Zeshan
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan.
| | - Ariba Farooq
- Department of Chemistry, The University of Lahore, Pakistan.
| | - Sadaf Naz
- Department of Chemistry, The University of Lahore, Pakistan.
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3
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Halawani EMS, Alzahrani SSS, Gad El-Rab SMF. Biosynthesis Strategy of Gold Nanoparticles and Biofabrication of a Novel Amoxicillin Gold Nanodrug to Overcome the Resistance of Multidrug-Resistant Bacterial Pathogens MRSA and E. coli. Biomimetics (Basel) 2023; 8:452. [PMID: 37887583 PMCID: PMC10603918 DOI: 10.3390/biomimetics8060452] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/11/2023] [Accepted: 09/18/2023] [Indexed: 10/28/2023] Open
Abstract
The prevalence of multidrug-resistant (MDR) bacteria has recently increased dramatically, seriously endangering human health. Herein, amoxicillin (Amoxi)-conjugated gold nanoparticles (AuNPs) were created as a novel drug delivery system to overcome MDR bacteria. MDR bacteria were isolated from a variety of infection sources. Phenotype, biotype, and 16S rRNA gene analyses were used for isolate identification. Additionally, Juniperus excelsa was used for the production of AuNPs. The conjugation of AuNPs with Amoxi using sodium tri-polyphosphate (TPP) as a linker to produce Amoxi-TPP-AuNPs was studied. The AuNP and Amoxi-TPP-AuNP diameters ranged from 15.99 to 24.71 nm, with spherical and hexagonal shapes. A total of 83% of amoxicillin was released from Amoxi-TPP-AuNPs after 12 h, and after 3 days, 90% of the medication was released. The Amoxi-TPP-AuNPs exhibited superior antibacterial effectiveness against MRSA and MDR E. coli strains. Amoxi-TPP-AuNPs had MICs of 3.6-8 µg mL-1 against the tested bacteria. This is 37.5-83 fold higher compared to values reported in the literature. Amoxi-TPP-AuNPs exhibit a remarkable ability against MRSA and E. coli strains. These results demonstrate the applicability of Amoxi-TPP-AuNPs as a drug delivery system to improve therapeutic action.
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Affiliation(s)
- Eman M S Halawani
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Seham S S Alzahrani
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Sanaa M F Gad El-Rab
- Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
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4
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Caballero Gómez N, Manetsberger J, Benomar N, Abriouel H. Novel combination of nanoparticles and metallo-β-lactamase inhibitor/antimicrobial-based formulation to combat antibiotic resistant Enterococcus sp. and Pseudomonas sp. strains. Int J Biol Macromol 2023; 248:125982. [PMID: 37499723 DOI: 10.1016/j.ijbiomac.2023.125982] [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: 03/18/2023] [Revised: 07/16/2023] [Accepted: 07/23/2023] [Indexed: 07/29/2023]
Abstract
Nanotechnology presents an innovative strategy to combat the spread of antibiotic resistant bacteria and their resistance genes throughout different ecosystems. To address this challenge, nanoparticles (silver, gold, zinc and copper) alone or in combination with metallo-β-lactamase inhibitor/antimicrobial-based formulation (EDTA/HLE) showed antimicrobial activity against antibiotic resistant Enterococcus sp. and Pseudomonas sp. strains. Furthermore, the observed synergistic effect was detected notably for silver, zinc or copper nanoparticles with EDTA (ethylenediaminetetraacetic acid) and silver nanoparticles with HLE against planktonic Enterococcus sp. strains, or gold nanoparticles+EDTA or HLE against Pseudomonas sp. Regarding activity against bacterial biofilms, zinc nanoparticles combined with either of the reagents caused strong inhibition of developing biofilms of antibiotic resistant Enterococcus sp. Pseudomonas sp. strains, while preformed biofilms were mainly inhibited by silver nanoparticles+reagent. Microscopic analyses confirmed that the antimicrobial activity of nanoparticles was caused by adsorption to the bacterial cell surface, and further enhanced by chelating agents. Hence, we can conclude that nanoparticles+EDTA or HLE could represent a good alternative to limit the spread of antibiotic resistant bacteria in the food chain and the environment.
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Affiliation(s)
- Natacha Caballero Gómez
- Área de Microbiología, Departamento de Ciencias de la Salud, Facultad de Ciencias Experimentales, Universidad de Jaén, Jaén, Spain
| | - Julia Manetsberger
- Área de Microbiología, Departamento de Ciencias de la Salud, Facultad de Ciencias Experimentales, Universidad de Jaén, Jaén, Spain
| | - Nabil Benomar
- Área de Microbiología, Departamento de Ciencias de la Salud, Facultad de Ciencias Experimentales, Universidad de Jaén, Jaén, Spain
| | - Hikmate Abriouel
- Área de Microbiología, Departamento de Ciencias de la Salud, Facultad de Ciencias Experimentales, Universidad de Jaén, Jaén, Spain.
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Raghav N, Vashisth C, Mor N, Arya P, Sharma MR, Kaur R, Bhatti SP, Kennedy JF. Recent advances in cellulose, pectin, carrageenan and alginate-based oral drug delivery systems. Int J Biol Macromol 2023:125357. [PMID: 37327920 DOI: 10.1016/j.ijbiomac.2023.125357] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 06/05/2023] [Accepted: 06/10/2023] [Indexed: 06/18/2023]
Abstract
Polymers-based drug delivery systems constitute one of the highly explored thrust areas in the field of the medicinal and pharmaceutical industries. In the past years, the properties of polymers have been modified in context to their solubility, release kinetics, targeted action site, absorption, and therapeutic efficacy. Despite the availability of diverse synthetic polymers for the bioavailability enhancement of drugs, the use of natural polymers is still highly recommended due to their easy availability, accessibility, and non-toxicity. The aim of the review is to provide the available literature of the last five years on oral drug delivery systems based on four natural polymers i.e., cellulose, pectin, carrageenan, and alginate in a concise and tabulated manner. In this review, most of the information is in tabulated form to provide easy accessibility to the reader. The data related to active pharmaceutical ingredients and supported components in different formulations of the mentioned polymers have been made available.
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Affiliation(s)
- Neera Raghav
- Chemistry Department, Kurukshetra University, Kurukshetra, Haryana 136119, India.
| | - Chanchal Vashisth
- Chemistry Department, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Nitika Mor
- Chemistry Department, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Priyanka Arya
- Chemistry Department, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Manishita R Sharma
- Chemistry Department, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Ravinder Kaur
- Chemistry Department, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | | | - John F Kennedy
- Chembiotech laboratories Ltd, Tenbury Wells, WR15 8FF, United Kingdom.
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Alginate-Based Hydrogels and Scaffolds for Biomedical Applications. Mar Drugs 2023; 21:md21030177. [PMID: 36976226 PMCID: PMC10055882 DOI: 10.3390/md21030177] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/08/2023] [Accepted: 03/10/2023] [Indexed: 03/16/2023] Open
Abstract
Alginate is a natural polymer of marine origin and, due to its exceptional properties, has great importance as an essential component for the preparation of hydrogels and scaffolds for biomedical applications. The design of biologically interactive hydrogels and scaffolds with advanced, expected and required properties are one of the key issues for successful outcomes in the healing of injured tissues. This review paper presents the multifunctional biomedical applications of alginate-based hydrogels and scaffolds in selected areas, highlighting the key effect of alginate and its influence on the essential properties of the selected biomedical applications. The first part covers scientific achievements for alginate in dermal tissue regeneration, drug delivery systems, cancer treatment, and antimicrobials. The second part is dedicated to our scientific results obtained for the research opus of hydrogel materials for scaffolds based on alginate in synergy with different materials (polymers and bioactive agents). Alginate has proved to be an exceptional polymer for combining with other naturally occurring and synthetic polymers, as well as loading bioactive therapeutic agents to achieve dermal, controlled drug delivery, cancer treatment, and antimicrobial purposes. Our research was based on combinations of alginate with gelatin, 2-hydroxyethyl methacrylate, apatite, graphene oxide and iron(III) oxide, as well as curcumin and resveratrol as bioactive agents. Important features of the prepared scaffolds, such as morphology, porosity, absorption capacity, hydrophilicity, mechanical properties, in vitro degradation, and in vitro and in vivo biocompatibility, have shown favorable properties for the aforementioned applications, and alginate has been an important link in achieving these properties. Alginate, as a component of these systems, proved to be an indispensable factor and played an excellent “role” in the optimal adjustment of the tested properties. This study provides valuable data and information for researchers and demonstrates the importance of the role of alginate as a biomaterial in the design of hydrogels and scaffolds that are powerful medical “tools” for biomedical applications.
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Eltaweil AS, Ahmed MS, El-Subruiti GM, Khalifa RE, Omer AM. Efficient loading and delivery of ciprofloxacin by smart alginate/carboxylated graphene oxide/aminated chitosan composite microbeads: in vitro release and kinetic studies. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2022.104533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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8
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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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9
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Antioxidant Effect of Nanoparticles Composed of Zein and Orange (Citrus sinensis) Extract Obtained by Ultrasound-Assisted Extraction. MATERIALS 2022; 15:ma15144838. [PMID: 35888305 PMCID: PMC9320882 DOI: 10.3390/ma15144838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/06/2022] [Accepted: 07/06/2022] [Indexed: 02/04/2023]
Abstract
In the present research, an orange extract (OE) was obtained and encapsulated in a zein matrix for its subsequent physicochemical characterization and evaluation of its antioxidant capacity. The OE consists of phenolic compounds and flavonoids extracted from orange peel (Citrus sinensis) by ultrasound-assisted extraction (UAE). The results obtained by dynamic light scattering (DLS) and scanning electron microscopy (SEM) indicated that zein nanoparticles with orange extract (NpZOE) presented a nanometric size and spherical shape, presenting a hydrodynamic diameter of 159.26 ± 5.96 nm. Furthermore, ζ-potential evolution and Fourier transform infrared spectroscopy (FTIR) techniques were used to evaluate the interaction between zein and OE. Regarding antioxidant activity, ABTS and DPPH assays indicated no significant differences at high concentrations of orange peel extract and NpZOE; however, NpZOE was more effective at low concentrations. Although this indicates that ultrasonication as an extraction method effectively obtains the phenolic compounds present in orange peels, the nanoprecipitation method under the conditions used allowed us to obtain particles in the nanometric range with positive ζ-potential. On the other hand, the antioxidant capacity analysis indicated a high antioxidant capacity of both OE and the NpZOE. This study presents the possibility of obtaining orange extracts by ultrasound and coupling them to zein-based nanoparticulate systems to be applied as biomedical materials functionalized with antioxidant substances of pharmaceutical utility.
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Mirhaj M, Labbaf S, Tavakoli M, Seifalian A. An Overview on the Recent Advances in the Treatment of Infected Wounds: Antibacterial Wound Dressings. Macromol Biosci 2022; 22:e2200014. [PMID: 35421269 DOI: 10.1002/mabi.202200014] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/20/2022] [Indexed: 11/11/2022]
Abstract
A wound can be surgical, cuts from an operation or due to accident and trauma. The infected wound, as a result of bacteria growth within the damaged skin, interrupts the natural wound healing process and significantly impacts the quality of life. Wound dressing is an important segment of the skincare industry with its economic burden estimated at $ 20.4 billion (in 2021) in the global market. The results of recent clinical trials suggest that the use of modern dressings can be the easiest, most accessible, and most cost-effective way to treat chronic wounds and, hence, holds significant promise. With the sheer number of dressings in the market, the selection of correct dressing is confusing for clinicians and healthcare workers. The aim of this research was to review widely used types of antibacterial wound dressings, as well as emerging products, for their efficiency and mode of action. In this review, we focus on introducing antibiotics and antibacterial nanoparticles as two important and clinically widely used categories of antibacterial agents. The perspectives and challenges for paving the way for future research in this field are also discussed. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Marjan Mirhaj
- Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
| | - Sheyda Labbaf
- Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
| | - Mohamadreza Tavakoli
- Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
| | - Amelia Seifalian
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
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11
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Ogbonna C, Kavaz D. Development of novel silver-apple pectin nanocomposite beads for antioxidant, antimicrobial and anticancer studies. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-021-00993-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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12
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Aboelmaati MG, Abdel Gaber SA, Soliman WE, Elkhatib WF, Abdelhameed AM, Sahyon HA, El-Kemary M. Biogenic and biocompatible silver nanoparticles for an apoptotic anti-ovarian activity and as polydopamine-functionalized antibiotic carrier for an augmented antibiofilm activity. Colloids Surf B Biointerfaces 2021; 206:111935. [PMID: 34252691 DOI: 10.1016/j.colsurfb.2021.111935] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/09/2021] [Accepted: 06/18/2021] [Indexed: 12/21/2022]
Abstract
Silver nanoparticles (AgNPs) could be employed in the combat against COVID-19, yet are associated with toxicities. In this study, biogenic and biocompatible AgNPs using the agro-waste, non-edible Hibiscus sabdariffa stem were synthesized. Under optimized reaction conditions, synthesized green AgNPs were crystalline, face cubic centered, spherical with a diameter of around 17 nm and a surface charge of -20 mV. Their murine lethal dose 50 (LD50) was 4 folds higher than the chemical AgNPs. Furthermore, they were more murine hepato- and nephro-tolerated than chemical counterparts due to activation of Nrf-2 and HO-1 pathway. They exerted an apoptotic anti-ovarian cancer activity with IC50 value 6 times more than the normal cell line. Being functionalized with polydopamine and conjugated to either moxifloxacin or gatifloxacin, the conjugates exerted an augmented antibiofilm activity against Klebsiella pneumoniae, Pseudomonas aeruginosa, and Acinetobacter baumannii biofilms that was significantly higher than antibiotic alone or functionalized AgNPs suggesting a synergistic activity. In conclusion, this study introduced a facile one-pot synthesis of biogenic and biocompatible AgNPs with preferential anti-cancer activity and could be utilized as antibiotic delivery system for a successful eradication of Gram-negative biofilms.
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Affiliation(s)
- Mohamed G Aboelmaati
- Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
| | - Sara A Abdel Gaber
- Nanomedicine Department, Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt.
| | - Wafaa E Soliman
- Department of Biomedical Sciences, College of Clinical Pharmacy, King Faisal University, Alhofuf, Al-Ahsa, 31982, Saudi Arabia; Department of Microbiology and Immunology, Faculty of Pharmacy, Delta University of Science and Technology, Gamasa, Mansoura, 11152, Egypt
| | - Walid F Elkhatib
- Microbiology and Immunology Department, Faculty of Pharmacy, Ain Shams University, African Union Organization St., Abbassia, Cairo, 11566, Egypt; Department of Microbiology and Immunology, Faculty of Pharmacy, Galala University, New Galala City, Suez, Egypt.
| | - Amr M Abdelhameed
- Institute of Global Public Health and Human Ecology, School of Sciences & Engineering, The American University in Cairo, AUC Avenue, P.O. Box 74, Cairo, 11835, Egypt
| | - Heba A Sahyon
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
| | - Maged El-Kemary
- Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
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Vidallon MLP, Teo BM. Recent developments in biomolecule-based nanoencapsulation systems for antimicrobial delivery and biofilm disruption. Chem Commun (Camb) 2021; 56:13907-13917. [PMID: 33146161 DOI: 10.1039/d0cc05880g] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biomolecules are very attractive nanomaterial components, generally, due to their biocompatibility, biodegradability, abundance, renewability, and sustainability, as compared to other resources for nanoparticle-based delivery systems. Biomolecule-based nanoencapsulation and nanodelivery systems can be designed and engineered for antimicrobial cargos in order to surmount classical and current challenges, including the emergence of multi-drug resistant strains of microorganisms, the low effectiveness and limitations in the applicability of the present antimicrobials, and biofilm formation. This feature article highlights the recent applications and capabilities of biomacromolecule-based nanomaterials for the delivery and activity enhancement of antimicrobials, and disruption of biofilms. Unique properties of some nanomaterials, arising from specific biomacromolecules, were also emphasized. We expect that this review will be helpful to researchers in engineering new types of antimicrobial nanocarriers, hybrid particles and colloidal systems with tailored properties.
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Affiliation(s)
- Mark Louis P Vidallon
- School of Chemistry, Faculty of Science, Monash University, Clayton, VIC 3800, Australia.
| | - Boon Mian Teo
- School of Chemistry, Faculty of Science, Monash University, Clayton, VIC 3800, Australia.
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14
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Flavonoid-Decorated Nano-gold for Antimicrobial Therapy Against Gram-negative Bacteria Escherichia coli. Appl Biochem Biotechnol 2021; 193:1727-1743. [PMID: 33713270 DOI: 10.1007/s12010-021-03543-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 02/26/2021] [Indexed: 10/21/2022]
Abstract
Nano-gold (Aunps) have emerged as promising options that exhibit unique features discrete from traditional materials suited for biomedical applications. Aunps were synthesized using flavonoid quercetin (Q) as reducing agent, and resultant nanoparticles were further conjugated with the flavonoid. The resultant nano-system was expected to perform a dual role as antibacterial and as antioxidant agent. Nano-gold surface plasmon peaks were recorded at 560 nm with size around 62 nm and having slim distribution pattern. Spherical particle with smooth surface was observed under TEM and AFM studies. TEM micrographs confirmed a homogeneous particle population of size around 30 nm. Quercetin association to nano-gold was corroborated through FTIR and EDAX analysis. Antioxidant nature of nano-gold prevented rapid oxidation of brilliant cresyl blue dye, in presence of sodium hypochlorite. Antimicrobial action of QuAunp was tested against Gram-negative bacteria Escherichia coli. Nano-gold designed produced a minimum inhibitory concentration of 7.6 μg/ml and minimum bactericidal concentration 10.5 μg/ml against E. coli. Further TEM analysis and membrane permeability studies revealed the impact of QuAunps on bacterial membrane leading to cell damage.
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15
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Simultaneous electrochemical detection of ciprofloxacin and Ag(I) in a silver nanoparticle dissolution: Application to ecotoxicological acute studies. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105832] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Abstract
Galactomannans are versatile macromolecules with broad industrial potential. The influence of changes in the chemical structures and respective bioactivities of these polysaccharides have been extensively studied. The derivatives obtained by sulfation, complexation, and phosphorylation are the most studied biological properties in galactomannans. The derivatives obtained have shown several pharmacological activities such as antiviral, antimicrobial, anticoagulant, fibrinolytic, chemopreventive, anticancer, antioxidant, chondroprotective, analgesic, immunomodulatory, and antileishmanial. Considering the relevance of these studies, we aim to provide an overview of studies that apply galactomannan modification or derivatization strategies to improve their properties for applications in the biomedical area. We identified the success of most modified galactomannans for pharmacological purposes. However, some studies found loss of bioactivity of the original polysaccharide after chemical changes to its original structures.
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17
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Khalil IA, Saleh B, Ibrahim DM, Jumelle C, Yung A, Dana R, Annabi N. Ciprofloxacin-loaded bioadhesive hydrogels for ocular applications. Biomater Sci 2020; 8:5196-5209. [PMID: 32840522 PMCID: PMC7594650 DOI: 10.1039/d0bm00935k] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The management of corneal infections often requires complex therapeutic regimens involving the prolonged and high-frequency application of antibiotics that provide many challenges to patients and impact compliance with the therapeutic regimens. In the context of severe injuries that lead to tissue defects (e.g. corneal lacerations) topical drug regimens are inadequate and suturing is often indicated. There is thus an unmet need for interventions that can provide tissue closure while concurrently preventing or treating infection. In this study, we describe the development of an antibacterial bioadhesive hydrogel loaded with micelles containing ciprofloxacin (CPX) for the management of corneal injuries at risk of infection. The in vitro release profile showed that the hydrogel system can release CPX, a broad-spectrum antibacterial drug, for up to 24 h. Moreover, the developed CPX-loaded hydrogels exhibited excellent antibacterial properties against Staphylococcus aureus and Pseudomonas aeruginosa, two bacterial strains responsible for the most ocular infections. Physical characterization, as well as adhesion and cytocompatibility tests, were performed to assess the effect of CPX loading in the developed hydrogel. Results showed that CPX loading did not affect stiffness, adhesive properties, or cytocompatibility of hydrogels. The efficiency of the antibacterial hydrogel was assessed using an ex vivo model of infectious pig corneal injury. Corneal tissues treated with the antibacterial hydrogel showed a significant decrease in bacterial colony-forming units (CFU) and a higher corneal epithelial viability after 24 h as compared to non-treated corneas and corneas treated with hydrogel without CPX. These results suggest that the developed adhesive hydrogel system presents a promising suture-free solution to seal corneal wounds while preventing infection.
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Affiliation(s)
- Islam A Khalil
- Department of Chemical Engineering, Northeastern University, Boston, MA, USA and Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA and Department of Pharmaceutics, Misr University of Science and Technology, 6th of October City 12566, Giza, Egypt
| | - Bahram Saleh
- Department of Chemical Engineering, Northeastern University, Boston, MA, USA
| | - Dina M Ibrahim
- Department of Chemical Engineering, Northeastern University, Boston, MA, USA and Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
| | - Clotilde Jumelle
- Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Ann Yung
- Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Reza Dana
- Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Nasim Annabi
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA and Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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Hariyadi DM, Islam N. Current Status of Alginate in Drug Delivery. Adv Pharmacol Pharm Sci 2020; 2020:8886095. [PMID: 32832902 PMCID: PMC7428837 DOI: 10.1155/2020/8886095] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/19/2020] [Accepted: 06/23/2020] [Indexed: 12/21/2022] Open
Abstract
Alginate is one of the natural polymers that are often used in drug- and protein-delivery systems. The use of alginate can provide several advantages including ease of preparation, biocompatibility, biodegradability, and nontoxicity. It can be applied to various routes of drug administration including targeted or localized drug-delivery systems. The development of alginates as a selected polymer in various delivery systems can be adjusted depending on the challenges that must be overcome by drug or proteins or the system itself. The increased effectiveness and safety of sodium alginate in the drug- or protein-delivery system are evidenced by changing the physicochemical characteristics of the drug or proteins. In this review, various routes of alginate-based drug or protein delivery, the effectivity of alginate in the stem cells, and cell encapsulation have been discussed. The recent advances in the in vivo alginate-based drug-delivery systems as well as their toxicities have also been reviewed.
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Affiliation(s)
- Dewi Melani Hariyadi
- Pharmaceutics Department, Faculty of Pharmacy, Airlangga University, Nanizar Zaman Joenoes Building, Jl. Mulyorejo Campus C, Surabaya 60115, Indonesia
| | - Nazrul Islam
- School of Clinical Sciences, Queensland University of Technology, Brisbane, Australia
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology, Brisbane, QLD, Australia
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Giri P, Zandu SK, Singh I. Chemical Modifications of Guar Gum for Drug Delivery Applications: A Review. ACTA ACUST UNITED AC 2020. [DOI: 10.14233/ajchem.2020.22607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Guar gum is a natural excipient extracted from the plant seed of Cyamopsis tetragonolobus, belonging
to the Leguminosae family. In the pharmaceutical industries, it contributes an important role due to its
non-toxicity, ease of availability, biodegradability and eco-friendly nature. The major constituents of
guar gum is galactomannan which is composed of D-galactose anhydride and mannose anhydride.
Hydroxyl groups present in galactomannan can be modified by carboxymethylation, grafting or
cross-linking with other excipients for developing modified polymers having desirable properties.
Guar gum is commonly used as a suspending, emulsifying, stabilizing, gelling and thickening agent
in various dosage forms. The guar gum derivatives are also useful in controlling the drug release from
the pharmaceutical dosage forms. In this review, different aspects of synthesis of guar gum derivatives
and its applications in various drug delivery systems is described.
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Affiliation(s)
- Pankaj Giri
- Chitkara College of Pharmacy, Chitkara University, Chandigarh-Patiala National Highway (NH-64), Rajpura-140401, India
| | - Simran Kaur Zandu
- Chitkara College of Pharmacy, Chitkara University, Chandigarh-Patiala National Highway (NH-64), Rajpura-140401, India
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Chandigarh-Patiala National Highway (NH-64), Rajpura-140401, India
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Karp F, Turino L, Estenoz D, Castro G, Islan G. Encapsulation of florfenicol by in situ crystallization into novel alginate-Eudragit RS® blended matrix for pH modulated release. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101241] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Cacicedo ML, Pacheco G, Islan GA, Alvarez VA, Barud HS, Castro GR. Chitosan-bacterial cellulose patch of ciprofloxacin for wound dressing: Preparation and characterization studies. Int J Biol Macromol 2019; 147:1136-1145. [PMID: 31739047 DOI: 10.1016/j.ijbiomac.2019.10.082] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 08/23/2019] [Accepted: 10/08/2019] [Indexed: 01/07/2023]
Abstract
Biopolymeric blends based on bacterial cellulose (BC) films modified with low molecular weight chitosan (Chi) were developed for controlled release of ciprofloxacin (Cip). Biophysical studies revealed a compatible and cooperative network between BC and Chi including deep structural changes in the BC matrix shown by spectroscopic and thermal analyses (SEM, roughness analysis, FTIR, XRD, TGA, mechanical properties and water vapor transmission rate). Incorporation of chitosan to BC matrix generated a thickening scaffold with high permeability to water vapor from 0.7 to 3.2 g mm/m2 h. Cip loaded onto the BC-Chi film showed a hyperbolic release profile with a 30% decrease in antibiotic release mediated by the presence of Chi. BC-Chi blend films containing Cip tested against Pseudomonas aeruginosa and Staphylococcus aureus showed a synergic effect of chitosan on Cip antimicrobial activity. Besides, in vitro studies revealed the lack of cytotoxicity of BC-Chi-Cip films in human fibroblasts.
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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), Calle 47 y 115, B1900AJL La Plata, Argentina
| | - Guilherme Pacheco
- Universidade de Araraquara (UNIARA) - Laboratório de Biopolímeros e Biomateriais (BioPolMat), Rua Carlos Gomes 1217, 14.801-320, Araraquara, SP, Brazil
| | - German A Islan
- Laboratorio de Nanobiomateriales, CINDEFI, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata-CONICET (CCT La Plata), Calle 47 y 115, B1900AJL La Plata, Argentina
| | - Vera A Alvarez
- CoMP (Grupo de Materiales Compuestos), Instituto de investigación en Ciencia y Tecnología de Materiales (INTEMA) (CONICET, UNMdP), Solís 7575, B7608FDQ Mar del Plata, Argentina
| | - Hernane S Barud
- Universidade de Araraquara (UNIARA) - Laboratório de Biopolímeros e Biomateriais (BioPolMat), Rua Carlos Gomes 1217, 14.801-320, Araraquara, SP, Brazil
| | - Guillermo R Castro
- Laboratorio de Nanobiomateriales, CINDEFI, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata-CONICET (CCT La Plata), Calle 47 y 115, B1900AJL La Plata, Argentina.
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Islan GA, Das S, Cacicedo ML, Halder A, Mukherjee A, Cuestas ML, Roy P, Castro GR, Mukherjee A. Silybin-conjugated gold nanoparticles for antimicrobial chemotherapy against Gram-negative bacteria. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101181] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Innovative natural polymer metal nanocomposites and their antimicrobial activity. Int J Biol Macromol 2019; 136:586-596. [DOI: 10.1016/j.ijbiomac.2019.06.114] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/31/2019] [Accepted: 06/16/2019] [Indexed: 02/06/2023]
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Shah A, Yameen MA, Fatima N, Murtaza G. Chemical synthesis of chitosan/silver nanocomposites films loaded with moxifloxacin: Their characterization and potential antibacterial activity. Int J Pharm 2019; 561:19-34. [DOI: 10.1016/j.ijpharm.2019.02.029] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 11/09/2018] [Accepted: 02/15/2019] [Indexed: 01/07/2023]
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25
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George A, Shah PA, Shrivastav PS. Guar gum: Versatile natural polymer for drug delivery applications. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.10.042] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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26
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Milionis I, Banti CN, Sainis I, Raptopoulou CP, Psycharis V, Kourkoumelis N, Hadjikakou SK. Silver ciprofloxacin (CIPAG): a successful combination of chemically modified antibiotic in inorganic-organic hybrid. J Biol Inorg Chem 2018; 23:705-723. [PMID: 29654371 DOI: 10.1007/s00775-018-1561-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 04/08/2018] [Indexed: 12/29/2022]
Abstract
The new silver(I) ionic, water soluble, compound {[Ag(CIPH)2]NO3∙0.75MeOH∙1.2H2O} (CIPAG) was obtained by reacting silver(I) nitrate with the antibiotic ciprofloxacin (CIPH). The complex was characterized by m.p., mid-FT-IR, 1H-NMR, UV-Vis spectroscopic techniques. The crystal structures of both CIPAG and the hexahydrated neutral free drug {[CIPH]∙6(H2O)} (2) were characterized by X-ray crystallography. Two neutral ligands are datively bonded to the metal ion through the piperidinic nitrogen atoms forming a cationic {[Ag(CIPH)2]+} counter part which is neutralized by a nitrate group. The antibacterial effect of CIPAG and the commercially available hydrochloric salt of the antibiotic ({[CIPH 2+ ]∙Cl - } (3)) were tested against the bacterial species Pseudomonas aeruginosa (PAO1), Staphylococcus epidermidis (St. epidermidis) and Staphylococcus aureus (St. aureus) by the mean of minimum inhibitory concentration, minimum bactericidal concentration and their inhibitory zone (IZ). The influence of CIPAG and 3 against the formation of biofilm of PAO1 or St. aureus was also evaluated by mean of biofilm elimination concentration. The IZ caused by CIPAG which has been loaded in poly-hydroxyethylmethacrylate, is determined. The genotoxicity of CIPAG and 3 is tested in vitro against normal human corneal epithelial cells (HCET cells), by the presence of micronucleus in HCET cells and in vivo by mean of Allium cepa test.
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Affiliation(s)
- I Milionis
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110, Ioannina, Greece
| | - C N Banti
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110, Ioannina, Greece.
| | - I Sainis
- Cancer Biobank Center, University of Ioannina, Ioannina, Greece
| | - C P Raptopoulou
- Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", Agia Paraskevi, Attikis, Greece
| | - V Psycharis
- Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", Agia Paraskevi, Attikis, Greece
| | - N Kourkoumelis
- Medical Physics Laboratory, Medical School, University of Ioannina, Ioannina, Greece
| | - S K Hadjikakou
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110, Ioannina, Greece.
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Assessment of synergistic interactions on self-assembled sodium alginate/nano-hydroxyapatite composites: to the conception of new bone tissue dressings. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4190-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Islan GA, Durán M, Cacicedo ML, Nakazato G, Kobayashi RKT, Martinez DST, Castro GR, Durán N. Nanopharmaceuticals as a solution to neglected diseases: Is it possible? Acta Trop 2017; 170:16-42. [PMID: 28232069 DOI: 10.1016/j.actatropica.2017.02.019] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 12/05/2016] [Accepted: 02/10/2017] [Indexed: 12/22/2022]
Abstract
The study of neglected diseases has not received much attention, especially from public and private institutions over the last years, in terms of strong support for developing treatment for these diseases. Support in the form of substantial amounts of private and public investment is greatly needed in this area. Due to the lack of novel drugs for these diseases, nanobiotechnology has appeared as an important new breakthrough for the treatment of neglected diseases. Recently, very few reviews focusing on filiarasis, leishmaniasis, leprosy, malaria, onchocerciasis, schistosomiasis, trypanosomiasis, and tuberculosis, and dengue virus have been published. New developments in nanocarriers have made promising advances in the treatment of several kinds of diseases with less toxicity, high efficacy and improved bioavailability of drugs with extended release and fewer applications. This review deals with the current status of nanobiotechnology in the treatment of neglected diseases and highlights how it provides key tools for exploring new perspectives in the treatment of a wide range of diseases.
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Affiliation(s)
- German A Islan
- Laboratorio de Nanobiomateriales, CINDEFI, Depto. de Quimica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET (CCT La Plata), 1900, La Plata, Argentina
| | - Marcela Durán
- Urogenital Carcinogenesis: Urogenitaland Immunotherapy Laboratory, Institute of Biology, University of Campinas, Campinas, SP, Brazil,; NanoBioss, Chemistry Institute, University of Campinas, SP, Brazil
| | - Maximiliano L Cacicedo
- Laboratorio de Nanobiomateriales, CINDEFI, Depto. de Quimica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET (CCT La Plata), 1900, La Plata, Argentina
| | - Gerson Nakazato
- Department of Microbiology, Biology Sciences Center, Londrina State University (UEL), Londrina, Brazil
| | - Renata K T Kobayashi
- Department of Microbiology, Biology Sciences Center, Londrina State University (UEL), Londrina, Brazil
| | - Diego S T Martinez
- NanoBioss, Chemistry Institute, University of Campinas, SP, Brazil; Brazilian Nanotechnology National Laboratory (LNNano-CNPEM), Campinas, SP, Brazil
| | - Guillermo R Castro
- Laboratorio de Nanobiomateriales, CINDEFI, Depto. de Quimica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET (CCT La Plata), 1900, La Plata, Argentina.
| | - Nelson Durán
- NanoBioss, Chemistry Institute, University of Campinas, SP, Brazil; Brazilian Nanotechnology National Laboratory (LNNano-CNPEM), Campinas, SP, Brazil; Biological Chemistry Laboratory, Institute of Chemistry, University of Campinas, Campinas, SP. Brazil.
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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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30
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31
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Chen L, Liu X, Wong KH. Novel nanoparticle materials for drug/food delivery-polysaccharides. PHYSICAL SCIENCES REVIEWS 2016. [DOI: 10.1515/psr-2016-0053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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32
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Chitosan based films as supports for dual antimicrobial release. Carbohydr Polym 2016; 146:402-10. [DOI: 10.1016/j.carbpol.2016.03.064] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 03/21/2016] [Accepted: 03/22/2016] [Indexed: 11/19/2022]
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An update on polysaccharide-based nanomaterials for antimicrobial applications. Appl Microbiol Biotechnol 2016; 100:2603-15. [PMID: 26830099 DOI: 10.1007/s00253-016-7315-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/09/2016] [Accepted: 01/12/2016] [Indexed: 01/01/2023]
Abstract
Scientific community has made a lot of efforts to combat the infectious diseases using antimicrobial agents, but these are associated with problems of development of multi-drug resistance and their adverse side effects. To tackle these challenges, nanocarrier-based drug delivery system using polysaccharides has received enormous attention in the past few years. These antimicrobial agents can become more efficacious when adsorbed, entrapped, or linked to polysaccharides. In addition, these nanocarrier-based systems provide an increase in the surface area of the drug and are able to achieve the targeted drug delivery as well as used for the synthesis of packaging materials with improved mechanical strength, barrier, and antimicrobial properties. This review focuses on potential therapeutic applications of nanocarrier-based drug delivery systems using polysaccharides for antimicrobial applications.
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34
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Martins AF, Follmann HDM, Monteiro JP, Bonafé EG, Nocchi S, Silva CTP, Nakamura CV, Girotto EM, Rubira AF, Muniz EC. Polyelectrolyte complex containing silver nanoparticles with antitumor property on Caco-2 colon cancer cells. Int J Biol Macromol 2015; 79:748-55. [PMID: 26051341 DOI: 10.1016/j.ijbiomac.2015.05.036] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 05/14/2015] [Accepted: 05/18/2015] [Indexed: 11/18/2022]
Abstract
Polyelectrolyte complex (beads) based on N,N,N-trimethyl chitosan/alginate was successful obtained and silver nanoparticles (AgNPs) were loaded within beads. In vitro cytotoxicity assays using beads/silver nanoparticles (beads/AgNPs) provided results, indicating that this material significantly inhibited the growth of colon cancer cells (Caco-2). In vitro release studies showed that the beads stabilized AgNPs and repressed Ag(0) oxidation under gastric conditions (pH 2.0). On the other hand, at physiological condition (pH 7.4) the beads/AgNPs released 3.3 μg of Ag(+) per each beads milligram. These studies showed that the concentration of Ag(+) released (3.3 μg) was cytotoxic for the Caco-2 cells and was not cytotoxic on healthy VERO cells. This result opens new perspectives for the manufacture of biomaterials based on beads/AgNPs with anti-tumor properties.
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Affiliation(s)
- Alessandro F Martins
- Departamento de Química, Universidade Tecnológica Federal do Paraná (UTFPR), Apucarana 86812-1200, Brazil; Grupo de Materiais Poliméricos e Compósitos, Universidade Estadual de Maringá (UEM), Maringá 87020-900, Brazil.
| | - Heveline D M Follmann
- Grupo de Materiais Poliméricos e Compósitos, Universidade Estadual de Maringá (UEM), Maringá 87020-900, Brazil
| | - Johny P Monteiro
- Departamento de Química, Universidade Tecnológica Federal do Paraná (UTFPR), Apucarana 86812-1200, Brazil; Grupo de Materiais Poliméricos e Compósitos, Universidade Estadual de Maringá (UEM), Maringá 87020-900, Brazil
| | - Elton G Bonafé
- Departamento de Química, Universidade Tecnológica Federal do Paraná (UTFPR), Apucarana 86812-1200, Brazil; Grupo de Materiais Poliméricos e Compósitos, Universidade Estadual de Maringá (UEM), Maringá 87020-900, Brazil
| | - Samara Nocchi
- Departamento de Ciências Básicas da Saúde, Universidade Estadual de Maringá (UEM), Maringá 87020-900, Brazil
| | - Cleiser T P Silva
- Grupo de Materiais Poliméricos e Compósitos, Universidade Estadual de Maringá (UEM), Maringá 87020-900, Brazil
| | - Celso V Nakamura
- Departamento de Ciências Básicas da Saúde, Universidade Estadual de Maringá (UEM), Maringá 87020-900, Brazil
| | - Emerson M Girotto
- Grupo de Materiais Poliméricos e Compósitos, Universidade Estadual de Maringá (UEM), Maringá 87020-900, Brazil
| | - Adley F Rubira
- Grupo de Materiais Poliméricos e Compósitos, Universidade Estadual de Maringá (UEM), Maringá 87020-900, Brazil
| | - Edvani C Muniz
- Grupo de Materiais Poliméricos e Compósitos, Universidade Estadual de Maringá (UEM), Maringá 87020-900, Brazil
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Shao W, Liu H, Liu X, Sun H, Wang S, Zhang R. pH-responsive release behavior and anti-bacterial activity of bacterial cellulose-silver nanocomposites. Int J Biol Macromol 2015; 76:209-17. [PMID: 25748842 DOI: 10.1016/j.ijbiomac.2015.02.048] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 02/19/2015] [Accepted: 02/20/2015] [Indexed: 01/17/2023]
Abstract
Bacterial cellulose (BC) has been extensively explored as some of the most promising biomaterials for biomedical applications due to their unique properties, such as high crystallinity, high mechanical strength, ultrafine fiber network structure, good water holding capacity and biocompatibility. However, BC is lack of anti-bacterial activity which is the main issue to be solved. In the study, BC-Ag nanocomposites were prepared in situ by introducing silver nanoparticles (AgNPs) into BC acting as the templates. The BC and as-prepared BC-Ag nanocomposites were characterized by several techniques including scanning electron microscope, Fourier transform infrared spectra, ultraviolet-visible absorption spectra, X-ray diffraction and thermogravimetric analyses. These results indicate AgNPs successfully impregnated into BC. The releases of Ag(+) at different pH values were studied, which showed pH-responsive release behaviors of BC-Ag nanocomposites. The anti-bacterial performances of BC-Ag nanocomposites were evaluated with Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 6538, Bacillus subtilis ATCC 9372 and Candida albicans CMCC(F) 98001, which frequently causes medical associated infections. The experimental results showed BC-Ag nanocomposites have excellent anti-bacterial activities, thus confirming its utility as potential wound dressings.
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Affiliation(s)
- Wei Shao
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, PR China.
| | - Hui Liu
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, PR China
| | - Xiufeng Liu
- College of Life Science, Nanjing University, Nanjing 210093, PR China
| | - Haijun Sun
- Advanced Analysis and Testing Center, Nanjing Forestry University, Nanjing 210037, PR China
| | - Shuxia Wang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, PR China
| | - Rui Zhang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, PR China.
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