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Sari BR, Yesilot S, Ozmen O, Aydin Acar C. Superior In Vivo Wound-Healing Activity of Biosynthesized Silver Nanoparticles with Nepeta cataria (Catnip) on Excision Wound Model in Rat. Biol Trace Elem Res 2024:10.1007/s12011-024-04268-4. [PMID: 38865065 DOI: 10.1007/s12011-024-04268-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 06/06/2024] [Indexed: 06/13/2024]
Abstract
Silver nanoparticles were biosynthesized with Nepeta cataria plant extract. It was determined that the synthesized Nc-AgNPs gave a strong absorbance peak at 438 nm wavelength in the UV-vis spectrophotometer. SEM and TEM analyses of Nc-AgNPs showed that the synthesized nanoparticles had a spherical morphology. Based on XRD analysis, the average crystallite size of Nc-AgNPs was calculated at 15.74 nm. At the same time, EDS spectrum analysis exhibited dominant emission energy at 3 keV, indicative of Nc-AgNPs. Nc-AgNPs showed an inhibition zone of 12 nm in gram-negative Escherichia coli, 10 nm in gram-positive Enterococcus faecalis, and 11 nm in Staphylococcus aureus. Nc-AgNPs showed high antioxidant properties, with 63% at 5000 μg/mL. The wound-healing properties of Nc-AgNPs were evaluated in vivo in wound models created in a total of 20 Wistar albino male rats, divided into four groups. After 10 days of treatment, the highest wound closure rate was seen in the Nc-AgNP + Vaseline (Group IV) treatment group, at 94%. It was observed that Nc-AgNP + Vaseline nanoformulation significantly increased wound healing, similar to Silverdin®, and Vaseline alone supported healing but did not result in complete closure. Histopathological examination revealed an increase in mature Type 1 collagen in Group IV and positive control (Group II), with better collagen maturation in vehicle control (Group III) compared to negative control (Group I). Immunohistochemical analysis showed complete epithelialization in Group IV and Group II, with distinct cytokeratin expressions, while Group III exhibited mild expressions.
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Affiliation(s)
- Berfin Rumeysa Sari
- Department of Health and Biomedical Sciences, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
| | - Sukriye Yesilot
- Department of Health and Biomedical Sciences, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
- Department of Nursing, Bucak School of Health, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
| | - Ozlem Ozmen
- Veterinary Faculty, Department of Pathology, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
| | - Cigdem Aydin Acar
- Department of Health and Biomedical Sciences, Burdur Mehmet Akif Ersoy University, Burdur, Turkey.
- Department of Nursing, Bucak School of Health, Burdur Mehmet Akif Ersoy University, Burdur, Turkey.
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Sanhueza C, Pavéz M, Hermosilla J, Rocha S, Valdivia-Gandur I, Manzanares MC, Beltrán V, Acevedo F. Poly-3-hydroxybutyrate-silver nanoparticles membranes as advanced antibiofilm strategies for combatting peri-implantitis. Int J Biol Macromol 2024; 269:131974. [PMID: 38692546 DOI: 10.1016/j.ijbiomac.2024.131974] [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: 10/31/2023] [Revised: 04/26/2024] [Accepted: 04/28/2024] [Indexed: 05/03/2024]
Abstract
Dental implant success is threatened by peri-implantitis, an inflammation leading to implant failure. Conventional treatments struggle with the intricate microbial and host factors involved. Antibacterial membranes, acting as barriers and delivering antimicrobials, may offer a promising solution. Thus, this study highlights the potential of developing antibacterial membranes of poly-3-hydroxybutyrate and silver nanoparticles (Ag Nps) to address peri-implantitis challenges, discussing design and efficacy against potential pathogens. Electrospun membranes composed of PHB microfibers and Ag Nps were synthesized in a blend of DMF/chloroform at three different concentrations. Various studies were conducted on the characterization and antimicrobial activity of the membranes. The synthesized Ag Nps ranged from 4 to 8 nm in size. Furthermore, Young's modulus decreased, reducing from 13.308 MPa in PHB membranes without Ag Nps to 0.983 MPa in PHB membranes containing higher concentrations of Ag Nps. This demonstrates that adding Ag Nps results in a less stiff membrane. An increase in elongation at break was noted with the rise in Ag Nps concentration, from 23.597 % in PHB membranes to 60.136 % in PHB membranes loaded with Ag Nps. The antibiotic and antibiofilm activity of the membranes were evaluated against Pseudomonas aeruginosa, Staphylococcus aureus, Streptococcus mutans, and Candida albicans. The results indicated that all PHB membranes containing Ag Nps exhibited potent antibacterial activity by inhibiting the growth of biofilms and planktonic bacteria. However, inhibition of C. albicans occurred only with the PHB-Ag Nps C membrane. These findings emphasize the versatility and potential of Ag Nps-incorporated membranes as a multifunctional approach for preventing and addressing microbial infections associated with peri-implantitis. The combination of antibacterial and antibiofilm properties in these membranes holds promise for improving the management and treatment of peri-implantitis-related complications.
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Affiliation(s)
- Claudia Sanhueza
- Center of Excellence in Translational Medicine - Scientific and Technology Bioresource Nucleus (CEMT- BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile; Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, Chile
| | - Mónica Pavéz
- Center of Excellence in Translational Medicine - Scientific and Technology Bioresource Nucleus (CEMT- BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Jeyson Hermosilla
- Center of Excellence in Translational Medicine - Scientific and Technology Bioresource Nucleus (CEMT- BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile; Doctoral Program in Sciences of Natural Resources, Universidad de La Frontera, Casilla 54-D, Temuco, Chile; Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, Chile
| | - Sebastián Rocha
- Escuela de Ingeniería, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Temuco, Chile
| | - Iván Valdivia-Gandur
- Biomedical Department, Universidad de Antofagasta, Av. Angamos 601, Antofagasta, Chile
| | - María-Cristina Manzanares
- Human Anatomy and Embryology Unit, Experimental Pathology and Therapeutics Department, Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain
| | - Víctor Beltrán
- Center of Excellence in Translational Medicine - Scientific and Technology Bioresource Nucleus (CEMT- BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile; Clinical Investigation and Dental Innovation Center (CIDIC), Dental School, Universidad de La Frontera, Temuco, Chile; Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, Chile.
| | - Francisca Acevedo
- Center of Excellence in Translational Medicine - Scientific and Technology Bioresource Nucleus (CEMT- BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile; Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, Chile; Department of Basic Sciences, Faculty of Medicine, Universidad de La Frontera, Casilla 54-D, Temuco, Chile.
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3
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Xu B, Yu D, Xu C, Gao Y, Sun H, Liu L, Yang Y, Qi D, Wu J. Study on synergistic mechanism of molybdenum disulfide/sodium carboxymethyl cellulose composite nanofiber mats for photothermal/photodynamic antibacterial treatment. Int J Biol Macromol 2024; 266:130838. [PMID: 38521322 DOI: 10.1016/j.ijbiomac.2024.130838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 03/02/2024] [Accepted: 03/11/2024] [Indexed: 03/25/2024]
Abstract
Innovative antibacterial therapies using nanomaterials, such as photothermal (PTT) and photodynamic (PDT) treatments, have been developed for treating wound infections. However, creating secure wound dressings with these therapies faces challenges. The primary focus of this study is to prepare an antibacterial nanofiber dressing that effectively incorporates stable loads of functional nanoparticles and demonstrates an efficient synergistic effect between PTT and PDT. Herein, a composite nanofiber mat was fabricated, integrating spherical molybdenum disulfide (MoS2) nanoparticles. MoS2 was deposited onto polylactic acid (PLA) nanofiber mats using vacuum filtration, which was further stabilized by sodium carboxymethyl cellulose (CMC) adhesion and glutaraldehyde (GA) cross-linking. The composite nanofibers demonstrated synergistic antibacterial effects under NIR light irradiation, and the underlying mechanism was explored. They induce bacterial membrane permeability, protein leakage, and intracellular reactive oxygen species (ROS) elevation, ultimately leading to >95 % antibacterial activity against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli), which is higher than that of single thermotherapy (almost no antibacterial activity) or ROS therapy (about 80 %). In addition, the composite nanofiber mats exhibited promotion effects on infected wound healing in vivo. This study demonstrates the great prospects of composite nanofiber dressings in clinical treatment of bacterial-infected wounds.
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Affiliation(s)
- Bingjie Xu
- MOE Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Dan Yu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Chenlu Xu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Yujie Gao
- MOE Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Hengqiu Sun
- Department of Pediatric Surgery, Taizhou Women and Children's Hospital of Wenzhou Medical University, Taizhou 318000, China.
| | - Lei Liu
- MOE Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yang Yang
- MOE Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Dongming Qi
- MOE Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China; Key Laboratory of Green Cleaning Technology & Detergent of Zhejiang Province, Lishui 323000, China.
| | - Jindan Wu
- MOE Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China; Key Laboratory of Green Cleaning Technology & Detergent of Zhejiang Province, Lishui 323000, China.
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Chicea D, Nicolae-Maranciuc A, Chicea LM. Silver Nanoparticles-Chitosan Nanocomposites: A Comparative Study Regarding Different Chemical Syntheses Procedures and Their Antibacterial Effect. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1113. [PMID: 38473584 DOI: 10.3390/ma17051113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/15/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024]
Abstract
Nanocomposites based on silver nanoparticles and chitosan present important advantages for medical applications, showing over time their role in antibacterial evaluation. This work presents the comparative study of two chemical synthesis procedures of nanocomposites, based on trisodium citrate dihydrate and sodium hydroxide, using various chitosan concentrations for a complex investigation. The nanocomposites were characterized by AFM and DLS regarding their dimensions, while FT-IR and UV-VIS spectrometry were used for the optical properties and to reveal the binding of silver nanoparticles with chitosan. Their antibacterial effect was determined using a disk diffusion method on two bacteria strains, E. coli and S. aureus. The results indicate that, when using both methods, the nanocomposites obtained were below 100 nm, yet the antibacterial effect proved to be stronger for the nanocomposites obtained using sodium hydroxide. Furthermore, the antibacterial effect can be related to the nanocomposites' sizes, since the smallest dimension nanocomposites exhibited the best bacterial growth inhibition on both bacteria strains we tested and for both types of silver nanocomposites.
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Affiliation(s)
- Dan Chicea
- Research Center for Complex Physical Systems, Faculty of Sciences, Lucian Blaga University of Sibiu, 550012 Sibiu, Romania
| | - Alexandra Nicolae-Maranciuc
- Research Center for Complex Physical Systems, Faculty of Sciences, Lucian Blaga University of Sibiu, 550012 Sibiu, Romania
- Institute for Interdisciplinary Studies and Research (ISCI), Lucian Blaga University of Sibiu, 550024 Sibiu, Romania
| | - Liana-Maria Chicea
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania
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Hassanen EI, Hussien AM, Mehanna S, Morsy EA. Chitosan coating silver nanoparticles as a promising feed additive in broilers chicken. BMC Vet Res 2023; 19:265. [PMID: 38071292 PMCID: PMC10709949 DOI: 10.1186/s12917-023-03826-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
The present study aimed to evaluate the potential of chitosan coating silver nanoparticles to enhance the growth performance and immune status of broilers without inducing oxidative stress-related pathological lesions in any organs or leaving residues of silver in the edible parts. Five clusters of Cobb one-day-old chicks (n = 10/group in each replication) were given oral therapy, once a week for 36 days as follows: (1) distilled water, (2, 3) 0.5- and 5 ppm silver nanoparticles (AgNPs), respectively, (4, 5) 0.5- and 5 ppm chitosan/silver nanoconjugates (CS/Ag-NCs), respectively. The results demonstrated a marked elevation in the body weight gain with a decline in the food conversion ratio and marked improvement in feeding and drinking behavior of all nanoparticles treated groups, but higher in CS/Ag-NCs groups than AgNPs groups and control group. In contrast to the 0.5 ppm AgNPs receiving group, the group receiving 5 ppm AgNPs noticed remarkable histological changes in some organs, including the liver, kidneys, spleen, and heart. Moreover, the administration of CS/Ag-NCs at two dosage levels didn't influence any histological changes. The AgNPs groups' antibody titers against the ND and AI viruses were almost identical to those of the control group. Otherwise, CS/Ag-NCs groups recorded the highest antibody titers. Additionally, there was a significant increase in silver content in most edible organs of AgNPs groups at a dosage level of 5 ppm. Otherwise, the coating of AgNPs by CSNPs could decrease the aggregation of silver in the biological organs. Thus, we recommend utilizing 0.5 ppm CS/Ag-NCs in broiler farms to promote their growth performance and strengthen their immune defense.
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Affiliation(s)
- Eman I Hassanen
- Pathology Department, Faculty of Veterinary Medicine, Cairo University, P.O.Box 12211, Giza, Egypt.
| | - Ahmed M Hussien
- Toxicology and Forensic Medicine Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Sally Mehanna
- Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Eman A Morsy
- Poultry Disease Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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Sun YX, Zou Q, Zhao J, Li XZ, Jiang H, Cai YJ, Yang X, Liu Y, Li YB, Wu YG, Yang ZH, Gai JG. Eco-Friendly Silver Nanoparticles/Chitosan/Poly(vinyl alcohol) Composites Exhibit Remarkable EMI Shielding Capabilities and Outstanding Thermal Conductivities. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37436846 DOI: 10.1021/acsami.3c04813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
The integration and miniaturization of contemporary electronics have led to significant challenges in dealing with electromagnetic (EM) radiation and heat accumulation. Despite these issues, achieving high thermal conductivity (TC) and electromagnetic interference (EMI) shielding effectiveness (SE) in polymer composite films remains an exceptionally difficult task. In this work, we used a straightforward in situ reduction process and a vacuum-drying method to successfully prepare a flexible Ag NPs/chitosan (CS)/PVA nanocomposite with three-dimensional (3D) conductive and thermally conductive network architectures. The 3D silver pathways formed by attaching to the chitosan fibers endow the material with simultaneous exceptional TC and EMI capabilities. At a silver concentration of 25 vol %, the TC of Ag NPs/CS/PVA nanocomposites reaches 5.18 W·m-1·K-1, exhibiting an approximately 25 times increase compared to CS/PVA composites. The electromagnetic shielding performance of 78.5 dB significantly outperforms the specifications of standard commercial EMI shielding applications by a significant margin. Additionally, Ag NPs/CS/PVA nanocomposites have greatly benefited from microwave absorption (SEA), effectively impeding the transmission of EM waves and reducing the reflected secondary EM wave pollution. Meanwhile, the composite material still maintains good mechanical properties and bendability. This endeavor helped develop malleable and durable composites that possess superior EMI shielding capabilities and intriguing heat dissipation properties using innovative design and fabrication methods.
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Affiliation(s)
- Yi-Xing Sun
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, Sichuan, China
| | - Qian Zou
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, Sichuan, China
| | - Jing Zhao
- PetroChina Liaoyang Petrochemical Company, No. 7 Torch Street, Hongwei District, Liaoyang 111000, Liaoning, China
| | - Xin-Zheng Li
- Nuclear Power Institute of China, 328, Section 1, Changshun Avenue, Huayang, Shuangliu District, Chengdu 610200, Sichuan, China
| | - Han Jiang
- Nuclear Power Institute of China, 328, Section 1, Changshun Avenue, Huayang, Shuangliu District, Chengdu 610200, Sichuan, China
| | - Ya-Juan Cai
- Sichuan Guojian Inspection Co., Ltd., No. 17, Section 1, Kangcheng Road, Jiangyang District, Luzhou 646099, Sichuan, China
| | - Xu Yang
- PetroChina Liaoyang Petrochemical Company, No. 7 Torch Street, Hongwei District, Liaoyang 111000, Liaoning, China
| | - Yang Liu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, Sichuan, China
| | - Yi-Bo Li
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, Sichuan, China
| | - Ya-Ge Wu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, Sichuan, China
| | - Zi-Hao Yang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, Sichuan, China
| | - Jing-Gang Gai
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, Sichuan, China
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Mbanga O, Cukrowska E, Gulumian M. A Comparative Study of the Biodurability and Persistence of Gold, Silver and Titanium Dioxide Nanoparticles Using the Continuous Flow through System. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13101653. [PMID: 37242069 DOI: 10.3390/nano13101653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/12/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023]
Abstract
The potential for nanoparticles to cause harm to human health and the environment is correlated with their biodurability in the human body and persistence in the environment. Dissolution testing serves to predict biodurability and nanoparticle environmental persistence. In this study, dissolution testing using the continuous flow through system was used to investigate the biodurability and persistence of gold nanoparticles (AuNPs), silver nanoparticles (AgNPs) and titanium dioxide nanoparticles (TiO2 NPs) in five different simulated biological fluids and two synthetic environmental media to predict their behaviour in real life situations. This study examined the physicochemical properties and agglomeration state of gold, silver and titanium dioxide nanoparticles before and after dissolution tests using three different techniques (UV-vis, XRD and TEM). The UV-vis spectra revealed that all three nanoparticles shifted to higher wavelengths after being exposed to simulated fluids. The titanium powder was found to be mixed with both rutile and anatase, according to XRD examination. The average diameter of gold nanoparticles was 14 nm, silver nanoparticles were 10 nm and titanium dioxide nanoparticles were 25 nm, according to TEM images. The gold and silver nanoparticles were observed to be spherical, but the titanium dioxide nanoparticles were irregular in shape, with some being spherical. The level of dissolved nanoparticles in simulated acidic media was higher in magnitude compared to that dissolved in simulated alkaline media. The results obtained via the continuous flow through dissolution system also displayed very significant dissolution rates. For TiO2 NPs the calculated half-times were in the range of 13-14 days, followed by AuNPs ranging between 4-12 days, significantly longer if compared to the half-times of AgNPs ranging between 2-7 days. AuNPs and TiO2 NPs were characterized by low dissolution rates therefore are expected to be (bio)durable in physiological surroundings and persistent in the environment thus, they might impose long-term effects on humans and the environment. In contrast, AgNPs have high dissolution rates and not (bio)durable and hence may cause short-term effects. The results suggest a hierarchy of biodurability and persistence of TiO2 NPs > AuNPs > AgNPs. It is recommended that nanoparticle product developers should follow the test guidelines stipulated by the OECD to ensure product safety for use before it is taken to the market.
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Affiliation(s)
- Odwa Mbanga
- Molecular Sciences Institute, School of Chemistry, University of Witwatersrand, Private Bag X3, Johannesburg 2050, South Africa
| | - Ewa Cukrowska
- Molecular Sciences Institute, School of Chemistry, University of Witwatersrand, Private Bag X3, Johannesburg 2050, South Africa
| | - Mary Gulumian
- Water Research Group, Unit for Environmental Sciences and Management, Northwest University, Private Bag X6001, Potchefstroom 2520, South Africa
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Chitosan Composites with Bacterial Cellulose Nanofibers Doped with Nanosized Cerium Oxide: Characterization and Cytocompatibility Evaluation. Int J Mol Sci 2023; 24:ijms24065415. [PMID: 36982493 PMCID: PMC10051111 DOI: 10.3390/ijms24065415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
In this work, new composite films were prepared by incorporating the disintegrated bacterial cellulose (BCd) nanofibers and cerium oxide nanoparticles into chitosan (CS) matrices. The influence of the amount of nanofillers on the structure and properties of the polymer composites and the specific features of the intermolecular interactions in the materials were determined. An increase in film stiffness was observed as a result of reinforcing the CS matrix with BCd nanofibers: the Young’s modulus increased from 4.55 to 6.3 GPa with the introduction of 5% BCd. A further increase in Young’s modulus of 6.7 GPa and a significant increase in film strength (22% increase in yield stress compared to the CS film) were observed when the BCd concentration was increased to 20%. The amount of nanosized ceria affected the structure of the composite, followed by a change in the hydrophilic properties and texture of the composite films. Increasing the amount of nanoceria to 8% significantly improved the biocompatibility of the films and their adhesion to the culture of mesenchymal stem cells. The obtained nanocomposite films combine a number of favorable properties (good mechanical strength in dry and swollen states, improved biocompatibility in relation to the culture of mesenchymal stem cells), which allows us to recommend them for use as a matrix material for the culture of mesenchymal stem cells and wound dressings.
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Guo Y, Wang M, Liu Q, Liu G, Wang S, Li J. Recent advances in the medical applications of hemostatic materials. Theranostics 2023; 13:161-196. [PMID: 36593953 PMCID: PMC9800728 DOI: 10.7150/thno.79639] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/14/2022] [Indexed: 12/03/2022] Open
Abstract
Bleeding caused by trauma or surgery is a serious health problem, and uncontrollable bleeding can result in death. Therefore, developing safe, effective, and convenient hemostatic materials is important. Active hemostatic agents currently used to investigate the field of hemostasis are divided into four broad categories: natural polymers, synthetic polymers, inorganic materials, and metal-containing materials. Hemostatic materials are prepared in various forms for wound care applications based on the active ingredients used. These materials include nanofibers, gels, sponges, and nanoparticles. Hemostatic materials find their applications in the field of wound care, and they are also used for hemostasis during malignant tumor surgery. Prompt and effective hemostasis can reduce the possibility of the spread of tumor cells with blood. This review discusses the outcomes of current research conducted in the field and the problems persisting in the field of developing hemostatic materials. The review also presents a platform for the further development of hemostatic materials. Bleeding caused by trauma or surgery is a serious health problem, and uncontrollable bleeding can result in death. Therefore, developing safe, effective, and convenient hemostatic materials is important. Active hemostatic agents currently used to investigate the field of hemostasis are divided into four broad categories: natural polymers, synthetic polymers, inorganic materials, and metal-containing materials. Hemostatic materials are prepared in various forms for wound care applications based on the active ingredients used. These materials include nanofibers, gels, sponges, and nanoparticles. Hemostatic materials find their applications in the field of wound care, and they are also used for hemostasis during malignant tumor surgery. Prompt and effective hemostasis can reduce the possibility of the spread of tumor cells with blood. This review discusses the outcomes of current research conducted in the field and the problems persisting in the field of developing hemostatic materials. The review also presents a platform for the further development of hemostatic materials.
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Affiliation(s)
- Yu Guo
- Department of the General Surgery, Jilin University Second Hospital, Changchun, China
| | - Min Wang
- Department of the General Surgery, Jilin University Second Hospital, Changchun, China
| | - Qi Liu
- Department of the General Surgery, Jilin University Second Hospital, Changchun, China
| | - Guoliang Liu
- Department of Operating Theater and Anesthesiology, Jilin University Second Hospital, Changchun, China
| | - Shuang Wang
- Department of the Dermatology, Jilin University Second Hospital, Changchun, China.,✉ Corresponding authors: Shuang Wang, E-mail: , Department of the Dermatology, Jilin University Second Hospital, Changchun, China. Jiannan Li, E-mail: , Department of the General Surgery, Jilin University Second Hospital, Changchun, China
| | - Jiannan Li
- Department of the General Surgery, Jilin University Second Hospital, Changchun, China.,✉ Corresponding authors: Shuang Wang, E-mail: , Department of the Dermatology, Jilin University Second Hospital, Changchun, China. Jiannan Li, E-mail: , Department of the General Surgery, Jilin University Second Hospital, Changchun, China
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10
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Lee SJ, Kwon KH. Anti-bacterial effects of functional cosmetics containing silver ions (Ag + ) on problematic toenails in Republic of Korea. J Cosmet Dermatol 2022; 21:6005-6009. [PMID: 36153802 DOI: 10.1111/jocd.14451] [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: 08/07/2021] [Accepted: 08/30/2021] [Indexed: 12/27/2022]
Abstract
BACKGROUND Problematic toenails caused by various diseases that are infected by various bacteria are discolored or deformed if left unattended for a long time are gradually increasing in modern society. Accordingly, the present study examines the anti-bacterial effects of LCN products, focused on Pseudomonas aeruginosa and Trichophyton rubrum, which can appear in problematic toenail symptoms. After the treatment, a significant anti-bacterial effect occurring on problematic toenails when a product containing silver ion (Ag+ ) will be analyzed. METHODS The anti-bacterial activity of LCN functional gel products in anti-fungal and/or anti-bacterial potency was confirmed by the paper disk method against two strains (Pseudomonas aeruginosa and Trichophyton rubum). RESULTS From July 2019 to October 2019, 30 men and women in their 20s and 50s who needed to manage problematic toenails in Wonju city, Gangwon-do, Republic of Korea, were asked to use LCN products once every two weeks. After 4 months, changes in the managed toenails were observed. Both products showed very good anti-microbial activity against, Trichophyton rubum but a very weak one against Pseudomonas aeruginosa. CONCLUSION As a result of this study, although there was a difference between individuals, the feet treated with LCN products showed effective anti-bacterial activity against topical anti-bacterial effects.
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Affiliation(s)
- Soo Jin Lee
- Division of Beauty Arts Care, Department of Beauty Arts Care, Graduate School, Dongguk University, Seoul, Republic of KOREA.,Nail Bam Co., Wonju, Republic of KOREA
| | - Ki Han Kwon
- College of General Education, Kookmin University, Seoul, Republic of KOREA
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Dubashynskaya NV, Skorik YA. Patches as Polymeric Systems for Improved Delivery of Topical Corticosteroids: Advances and Future Perspectives. Int J Mol Sci 2022; 23:12980. [PMID: 36361769 PMCID: PMC9657685 DOI: 10.3390/ijms232112980] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/20/2022] [Accepted: 10/25/2022] [Indexed: 12/25/2023] Open
Abstract
Mucoadhesive polymer patches are a promising alternative for prolonged and controlled delivery of topical corticosteroids (CS) to improve their biopharmaceutical properties (mainly increasing local bioavailability and reducing systemic toxicity). The main biopharmaceutical advantages of patches compared to traditional oral dosage forms are their excellent bioadhesive properties and their increased drug residence time, modified and unidirectional drug release, improved local bioavailability and safety profile, additional pain receptor protection, and patient friendliness. This review describes the main approaches that can be used for the pharmaceutical R&D of oromucosal patches with improved physicochemical, mechanical, and pharmacological properties. The review mainly focuses on ways to increase the bioadhesion of oromucosal patches and to modify drug release, as well as ways to improve local bioavailability and safety by developing unidirectional -release poly-layer patches. Various techniques for obtaining patches and their influence on the structure and properties of the resulting dosage forms are also presented.
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Affiliation(s)
| | - Yury A. Skorik
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, 199004 St. Petersburg, Russia
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12
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Bionanocomposite Active Packaging Material Based on Soy Protein Isolate/Persian Gum/Silver Nanoparticles; Fabrication and Characteristics. COLLOIDS AND INTERFACES 2022. [DOI: 10.3390/colloids6040057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this study, nanocomposite active films were fabricated containing silver nanoparticles (SNPs) embedded within soy protein isolate (SPI)/Persian gum (PG) matrices. The physical, mechanical, and antibacterial properties of these composite films were then characterized. In addition, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) were used to provide information about the microstructure, interactions, and crystallinity of the films. Pure SPI films had poor physicochemical attributes but the addition of PG (0.25, 0.5, or 1 wt%) improved their water vapor permeability, mechanical properties, and water solubility (WS). The moisture content (MC) of the films decreased after the introduction of PG, which was attributed to fewer free hydroxyl groups to bind to the water molecules. Our results suggest there was a strong interaction between the SPI and the PG and SNPs in the films, suggesting these additives behaved like active fillers. Optimum film properties were obtained at 0.25% PG in the SPI films. The addition of PG (0.25%) and SNPs (1%) led to a considerable increase in tensile strength (TS) and a decrease in elongation at break (EB). Furthermore, the incorporation of the SNPs into the SPI/PG composite films increased their antibacterial activity against pathogenic bacteria (Escherichia coli and Staphylococcus aureus), with the effects being more prominent for S. aureus. Spectroscopy analyses provided insights into the nature of the molecular interactions between the different components in the films. Overall, the biodegradable active films developed in this study may be suitable for utilization as eco-friendly packaging materials in the food industry.
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13
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Liu J, Wu S, Ma J, Liu C, Dai T, Wu X, Zhao H, Zhou D. Polycaprolactone/Gelatin/Hydroxyapatite Electrospun Nanomembrane Materials Incorporated with Different Proportions of Attapulgite Synergistically Promote Bone Formation. Int J Nanomedicine 2022; 17:4087-4103. [PMID: 36105619 PMCID: PMC9467850 DOI: 10.2147/ijn.s372247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 08/31/2022] [Indexed: 12/28/2022] Open
Abstract
Purpose To enhance the osteoinductive effect of Hydroxyapatite (HA) in bone tissue engineering, this study manufactured polycaprolactone (PCL)/gelatin (GEL)/HA nanofibrous scaffolds incorporated with different ratios of attapulgite (ATP): HA (0:3, 0:0, 1:1, 2:1 and 3:0) by high-voltage electrospinning. The synergistic effect exerted by ATP and HA on bone formation was explored both in vivo and in vitro. Methods and Results First, we determined the group composition and crystal structure of the nanosheets by Fourier transform infrared (FTIR) and X-ray diffraction (XRD) analyses. Then, the physical properties of the scaffolds, including the modulus of elasticity, porosity and water absorption were evaluated. Moreover, the surface microstructure of the nanofibrous scaffolds was captured by Scanning electron microscopy (SEM) and Transmission Electron Microscope (TEM). The biocompatibility of the fabricated scaffolds represented by cell counting kit 8 (CCK-8) and phalloidin staining was also assessed. Next, in vitro osteogenesis was evaluated. Real-time PCR, alkaline phosphatase (ALP) staining and Alizarin red S (ARS) staining results showed that the materials incorporated with HA and ATP at a ratio of 2:1 synergistically promoted more osteoblastic differentiation and extracellular mineralization than scaffolds doped with HA and ATP alone. Last, in vivo, Hematoxylin-Eosin staining (HE staining) and Masson staining showed that groups treated with HA and ATP acquired optimal patterns of bone regeneration. Conclusion This study clarified for the first time that the combination of HA and ATP orchestrated biomaterial-induced osseointegration, and the synergistic effect was more significant when the ratio of ATP/HA was 2:1. This conclusion also provides new ideas and a scientific basis for the development of functionalized nanomaterials in bone tissue engineering.
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Affiliation(s)
- Jun Liu
- Medical Research Centre, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213164, People's Republic of China.,Dalian Medical University, Dalian, 116044, People's Republic of China
| | - Siyu Wu
- Medical Research Centre, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213164, People's Republic of China.,Dalian Medical University, Dalian, 116044, People's Republic of China
| | - Jiayi Ma
- Medical Research Centre, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213164, People's Republic of China.,Dalian Medical University, Dalian, 116044, People's Republic of China
| | - Chun Liu
- Medical Research Centre, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213164, People's Republic of China
| | - Ting Dai
- Medical Research Centre, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213164, People's Republic of China
| | - Xiaoyu Wu
- Medical Research Centre, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213164, People's Republic of China
| | - Hongbin Zhao
- Medical Research Centre, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213164, People's Republic of China
| | - Dong Zhou
- Medical Research Centre, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213164, People's Republic of China
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14
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Osorio Echavarría J, Gómez Vanegas NA, Orozco CPO. Chitosan/carboxymethyl cellulose wound dressings supplemented with biologically synthesized silver nanoparticles from the ligninolytic fungus Anamorphous Bjerkandera sp. R1. Heliyon 2022; 8:e10258. [PMID: 36060464 PMCID: PMC9437809 DOI: 10.1016/j.heliyon.2022.e10258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 11/08/2021] [Accepted: 08/02/2022] [Indexed: 01/08/2023] Open
Abstract
Chitosan (CHI) and carboxymethyl cellulose (CMC) are naturally sourced materials with excellent physical, chemical, and biological properties, which make them a promising tool for the development of different medical devices. In this research, CHI-CMC wound dressings were manufactured, by using different colloidal suspensions of silver nanoparticles (AgNPs) synthesized from the ligninolytic fungus Anamorphous Bjerkandera sp. R1, called CS and SN. Transmission electron microscopy (TEM), UV-Vis spectroscopy, and dynamic light scattering (DLS) analysis were used to characterize AgNPs. The wound dressings were characterized, by scanning electron microscopy (SEM), optical microscopy and their mechanical, antimicrobial, and biological properties were evaluated. The results of the different characterizations revealed the formation of spherical AgNPs with a mean size between 10 and 70 nm for the different mixtures worked. The mechanical properties of CHI-CMS-AgNPs doped with CS and SN suspensions showed superior mechanical properties with respect to CHI-CMC wound dressings. Compared to the latter, CHI-CMC-AgNPs wound dressings yielded better antibacterial activity against the pathogen Escherichia coli. In biological assays, it was observed that manufactured CHI-CMC-AgNPs wound dressings were not toxic when in contact with human skin fibroblasts (Detroit). This study, then, suggests that this type of wound dressings with a chitosan matrix and carboxymethyl cellulose doped with biologically synthesized nanoparticles from the fungus Bjerkandera sp., may be an ideal alternative for the manufacture of new wound dressings.
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Affiliation(s)
- Jerónimo Osorio Echavarría
- Bioprocess Group, Department of Chemical Engineering, University of Antioquia, Street 70 # 52 – 21, Medellin 1226, Colombia
- Corresponding author.
| | - Natalia Andrea Gómez Vanegas
- Bioprocess Group, Department of Chemical Engineering, University of Antioquia, Street 70 # 52 – 21, Medellin 1226, Colombia
| | - Claudia Patricia Ossa Orozco
- Biomaterials Research Group, Bioengineering Program, University of Antioquia, Street 70 # 52 – 21, Medellin 1226, Colombia
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15
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Shetty K, Bhandari A, Yadav KS. Nanoparticles incorporated in nanofibers using electrospinning: A novel nano-in-nano delivery system. J Control Release 2022; 350:421-434. [PMID: 36002053 DOI: 10.1016/j.jconrel.2022.08.035] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/16/2022] [Accepted: 08/17/2022] [Indexed: 12/26/2022]
Abstract
Nanofibers are cutting-edge drug delivery systems that are being utilised to treat a variety of ailments. Nanofibers are mostly woven by electrospinning techniques that are majorly used in drug delivery, wound dressing, tissue engineering, sensors, etc. They have several limitations that can be addressed by developing nano-in-nano delivery techniques. Nanoparticles are incorporated into nanofibers in these nano-in-nano systems. They offer a lot of benefits over other nanosystems, including the ability to shield drugs from physical deterioration, the ability to provide prolonged drug release, high surface area to volume ratio, increased drug loading capacity and the potential to be employed in critical conditions such as cancer. These nanoparticles can be encapsulated, entrapped, or adsorbed onto nanofibers in a variety of ways. To include nanosystems into nanofibers, a variety of materials and different kinds of nanoparticles can be used. The present review gives an insight to the applications of nano - in - nano drug delivery system for different diseases/disorders. The review also brings forward the current state of these novel delivery systems along with future perspectives.
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Affiliation(s)
- Karishma Shetty
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM'S NMIMS (Deemed to be University), Mumbai 400056, India
| | - Ayush Bhandari
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM'S NMIMS (Deemed to be University), Mumbai 400056, India
| | - Khushwant S Yadav
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM'S NMIMS (Deemed to be University), Mumbai 400056, India.
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16
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Deniz F, Nazır H, Keskin NOS. Synergistic Antibacterial and Anticorrosive Effect of Polysulfone Nanofibers Embedded with Biogenic Silver Nanoparticles for Microbiologically Influenced Corrosion of Nickel. ChemistrySelect 2022. [DOI: 10.1002/slct.202104607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Furkan Deniz
- Polatlı Science and Literature Faculty Biology Department Nanosan Laboratory Ankara Hacı Bayram Veli University Ankara 06900 Turkey
| | - Hasan Nazır
- Faculty of Science Department of Chemistry Ankara University Ankara 06100 Turkey
| | - Nalan Oya San Keskin
- Polatlı Science and Literature Faculty Biology Department Nanosan Laboratory Ankara Hacı Bayram Veli University Ankara 06900 Turkey
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17
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Zhou J, Nie Y, Jin C, Zhang JXJ. Engineering Biomimetic Extracellular Matrix with Silica Nanofibers: From 1D Material to 3D Network. ACS Biomater Sci Eng 2022; 8:2258-2280. [PMID: 35377596 DOI: 10.1021/acsbiomaterials.1c01525] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Biomaterials at nanoscale is a fast-expanding research field with which extensive studies have been conducted on understanding the interactions between cells and their surrounding microenvironments as well as intracellular communications. Among many kinds of nanoscale biomaterials, mesoporous fibrous structures are especially attractive as a promising approach to mimic the natural extracellular matrix (ECM) for cell and tissue research. Silica is a well-studied biocompatible, natural inorganic material that can be synthesized as morpho-genetically active scaffolds by various methods. This review compares silica nanofibers (SNFs) to other ECM materials such as hydrogel, polymers, and decellularized natural ECM, summarizes fabrication techniques for SNFs, and discusses different strategies of constructing ECM using SNFs. In addition, the latest progress on SNFs synthesis and biomimetic ECM substrates fabrication is summarized and highlighted. Lastly, we look at the wide use of SNF-based ECM scaffolds in biological applications, including stem cell regulation, tissue engineering, drug release, and environmental applications.
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Affiliation(s)
- Junhu Zhou
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Yuan Nie
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Congran Jin
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - John X J Zhang
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
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18
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Priyanto A, Hapidin DA, Khairurrijal K. Potential Loading of Virgin Coconut Oil into Centrifugally‐Spun Nanofibers for Biomedical Applications. CHEMBIOENG REVIEWS 2022. [DOI: 10.1002/cben.202100043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Aan Priyanto
- Institut Teknologi Bandung Department of Physics Jalan Ganesa 10 40132 Bandung Indonesia
| | - Dian Ahmad Hapidin
- Institut Teknologi Bandung Department of Physics Jalan Ganesa 10 40132 Bandung Indonesia
| | - Khairurrijal Khairurrijal
- Institut Teknologi Bandung Department of Physics Jalan Ganesa 10 40132 Bandung Indonesia
- Institut Teknologi Bandung University Center of Excellence – Nutraceutical, Bioscience and Biotechnology Research Center Jalan Ganesa 10 40132 Bandung Indonesia
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19
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Chitosan: A Sustainable Material for Multifarious Applications. Polymers (Basel) 2022; 14:polym14122335. [PMID: 35745912 PMCID: PMC9228948 DOI: 10.3390/polym14122335] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/25/2022] [Accepted: 05/30/2022] [Indexed: 02/04/2023] Open
Abstract
Due to the versatility of its features and capabilities, chitosan generated from marine crustacean waste is gaining importance and appeal in a wide variety of applications. It was initially used in pharmaceutical and medical applications due to its antibacterial, biocompatible, and biodegradable properties. However, as the demand for innovative materials with environmentally benign properties has increased, the application range of chitosan has expanded, and it is now used in a variety of everyday applications. The most exciting aspect of the chitosan is its bactericidal properties against pathogens, which are prevalent in contaminated water and cause a variety of human ailments. Apart from antimicrobial and water filtration applications, chitosan is used in dentistry, in water filtration membranes to remove metal ions and some heavy metals from industrial effluents, in microbial fuel cell membranes, and in agriculture to maintain moisture in fruits and leaves. It is also used in skin care products and cosmetics as a moisturizer, in conjunction with fertilizer to boost plant immunity, and as a bi-adhesive for bonding woods and metals. As it has the capacity to increase the life span of food items and raw meat, it is an unavoidable component in food packing and preservation. The numerous applications of chitosan are reviewed in this brief study, as well as the approaches used to incorporate chitosan alongside traditional materials and its effect on the outputs.
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20
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Samodelova MV, Kapitanova OO, Evdokimov PV, Eremina OE, Goodilin EA, Veselova IA. Plasmonic features of free-standing chitosan nanocomposite film with silver and graphene oxide for SERS applications. NANOTECHNOLOGY 2022; 33:335501. [PMID: 35508104 DOI: 10.1088/1361-6528/ac6c98] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 05/04/2022] [Indexed: 06/14/2023]
Abstract
A scalable procedure of SERS substrates design was developed using a novel plasmonic structure based on a freestanding chitosan film, silver nanoparticles, and graphene oxide. Chitosan provides a uniform distribution of silver nanoparticles from a colloidal suspension and, therefore, a reproducible Raman signal from local areas of measurements of several tens of microns. The addition of graphene oxide (GO) to the colloidal solution of silver nanoparticles suppresses the tortuous background fluorescence signal from the analyte and leads to an increase in the signal-to-fluorescence background intensity ratio by up to 6 times as compared to structures without GO. The manufactured plasmonic polymer nanocomposite provides a detection limit of down to 100 pM for R6G using a laser wavelength of 532 nm through a portable ×10 objective. The high colloidal stability of GO in water and the use of an aqueous colloid of silver nanoparticles simplify the procedure for creating a substrate by applying the GO-silver composite on the surface of a chitosan film without a need to form a GO film. Therefore, our approach paves a promising avenue to provide more sensitive detection even for the fluorescent analytes with short-wavelength lasers (532, 633 nm) instead of IR (785, 1024 nm) and foster the practical application of the developed plasmonic composites on portable Raman spectrometers.
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Affiliation(s)
- Mariia V Samodelova
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie gory 1, Moscow, 119991, Russia
| | - Olesya O Kapitanova
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie gory 1, Moscow, 119991, Russia
- Center for photonics and 2D materials, Moscow Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny, Moscow Region, 141701, Russia
| | - Pavel V Evdokimov
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie gory 1, Moscow, 119991, Russia
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Leninskii prospect 31, Moscow, 119991, Russia
| | - Olga E Eremina
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie gory 1, Moscow, 119991, Russia
| | - Eugene A Goodilin
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie gory 1, Moscow, 119991, Russia
- Faculty of Materials Science, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Irina A Veselova
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie gory 1, Moscow, 119991, Russia
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21
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Aggarwal S, Ikram S. Zinc oxide nanoparticles-impregnated chitosan surfaces for covalent immobilization of trypsin: Stability & kinetic studies. Int J Biol Macromol 2022; 207:205-221. [PMID: 35259431 DOI: 10.1016/j.ijbiomac.2022.03.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/31/2022] [Accepted: 03/03/2022] [Indexed: 11/25/2022]
Abstract
Trypsin (Try, EC. 3.4.21.4) was effectively immobilized on the surface of glutaraldehyde(GA)-activated ZnO/Chitosan nanocomposite through covalent attachment via Schiff-base linkages. Size, structure, surface morphology, & percentage elemental composition of the prepared ZnO nanoparticles and chitosan-coated ZnO nanocomposite were studied by UV-Visible spectroscopy, Fourier-transform infrared spectroscopy (FTIR), X-Ray diffraction analysis (XRD), transmission electron microscopy (TEM), Scanning electron microscopy (SEM), and Energy-Dispersive X-Ray Microanalysis (EDAX) techniques. Optimal immobilization conditions (incubation time (16 h), enzyme concentration (1.8 mg/ml), and pH (7.8)) were investigated to obtain the maximum expressed activity of the immobilized trypsin. Immobilized & solubilized trypsin exhibited the optimum catalytic activity at pH 8.5, 60 °C, and pH 7.8, 45 °C respectively. Kinetic parameters (Km, Vmax) of immobilized (27.12 μM, 8.82 μM/min) & free trypsin (25.76 μM, 4.16 μM/min) were determined, indicating that efficiency of trypsin improves after immobilization. Immobilized trypsin preserved 67% of initial activity at 50 °C during 2 h of incubation & sustained nearly 50% of catalytic activity until the 9th repeated cycle of utilization. Moreover, immobilized trypsin retained 50% of enzymatic activity after 90 days of storage at 4 °C. Hence, the current findings suggest that ZnO/Chitosan-GA-Trypsin would be a promising biocatalyst for large-scale biotechnological applications.
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Affiliation(s)
- Shalu Aggarwal
- Bio/Polymers Research Laboratory, Department of Chemistry, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Saiqa Ikram
- Bio/Polymers Research Laboratory, Department of Chemistry, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi 110025, India.
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22
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Cyriac V, Molakalu Padre S, Ismayil, Sangam Chandrashekar G, Chavan C, Fakeerappa Bhajantri R, Murari MS. Tuning the ionic conductivity of flexible polyvinyl alcohol/sodium bromide polymer electrolyte films by incorporating silver nanoparticles for energy storage device applications. J Appl Polym Sci 2022. [DOI: 10.1002/app.52525] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Vipin Cyriac
- Department of Sciences Manipal Academy of Higher Education Manipal Karnataka India
- Nanomaterials and Polymer Physics Lab, Department of Physics, Manipal Institute of Technology Manipal Academy of Higher Education Manipal Karnataka India
| | - Shilpa Molakalu Padre
- Department of Sciences Manipal Academy of Higher Education Manipal Karnataka India
- Nanomaterials and Polymer Physics Lab, Department of Physics, Manipal Institute of Technology Manipal Academy of Higher Education Manipal Karnataka India
| | - Ismayil
- Nanomaterials and Polymer Physics Lab, Department of Physics, Manipal Institute of Technology Manipal Academy of Higher Education Manipal Karnataka India
| | - Gurumurthy Sangam Chandrashekar
- Nanomaterials and Polymer Physics Lab, Department of Physics, Manipal Institute of Technology Manipal Academy of Higher Education Manipal Karnataka India
| | - Chetan Chavan
- Department of Studies in Physics Karnataka University Dharwad Karnataka India
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23
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Physicochemical and Morphological Properties of Hybrid Films Containing Silver-Based Silica Materials Deposited on Glass Substrates. COATINGS 2022. [DOI: 10.3390/coatings12020242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The main goal of this study was to present a facile and inexpensive approach for the preparation of hybrid coatings by the deposition under ambient air conditions of silver-based silica materials on glass substrates, which can be used to improve solar cells’ performance. The silica materials containing silver nanoparticles (AgNPs) were synthesized by the hydrolytic condensation of tetraethylorthosilicate (TEOS), triethoxymethylsilane (MTES), and trimethoxyhexadecylsilane (HDTMES), under acidic conditions, at room temperature (25 ± 2 °C). The silver nitrate solution (AgNO3, 0.1 wt. %) was used as a source of Ag+ ions. The final samples were investigated through Fourier Transform Infrared Spectroscopy–Attenuated Total Reflectance (FTIR–ATR), Transmission Electron Microscopy equipped with energy dispersive X–ray (TEM–EDX), UV–Vis spectroscopy, Atomic Force Microscopy (AFM), and Raman Spectroscopy (RS). The TEM images confirmed the formation of AgNPs and were found to be around 3 nm. It was observed that AgNPs were embedded in the silica matrix. EDX also confirmed the presence of the resulting AgNPs within the silica material. AFM images demonstrated that the morphology of the hybrid films’ surfaces can be changed as a function of sol–gel composition. RS analysis indicated that silanol groups were significantly present on the silver-based silica film surface. The UV–Vis spectra revealed that the hybrid coatings presented a reflectance of ~8%, at 550 nm. This study will enhance the value of nanocoating technology in optoelectronics, particularly in the development of nanostructures that improve the performance in thin-film solar cells.
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Zakhireh S, Barar J, Adibkia K, Beygi-Khosrowshahi Y, Fathi M, Omidain H, Omidi Y. Bioactive Chitosan-Based Organometallic Scaffolds for Tissue Engineering and Regeneration. Top Curr Chem (Cham) 2022; 380:13. [PMID: 35149879 DOI: 10.1007/s41061-022-00364-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 01/04/2022] [Indexed: 12/14/2022]
Abstract
Captivating achievements in developing advanced hybrid biostructures through integrating natural biopolymers with inorganic materials (e.g., metals and metalloids) have paved the way towards the application of bioactive organometallic scaffolds (OMSs) in tissue engineering and regenerative medicine (TERM). Of various biopolymers, chitosan (CS) has been used widely for the development of bioactive OMSs, in large part due to its unique characteristics (e.g., biocompatibility, biodegradability, surface chemistry, and functionalization potential). In integration with inorganic elements, CS has been used to engineer advanced biomimetic matrices to accommodate both embedded cells and drug molecules and serve as scaffolds in TERM. The use of the CS-based OMSs is envisioned to provide a new pragmatic potential in TERM and even in precision medicine. In this review, we aim to elaborate on recent achievements in a variety of CS/metal, CS/metalloid hybrid scaffolds, and discuss their applications in TERM. We also provide comprehensive insights into the formulation, surface modification, characterization, biocompatibility, and cytotoxicity of different types of CS-based OMSs.
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Affiliation(s)
- Solmaz Zakhireh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jaleh Barar
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khosro Adibkia
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Younes Beygi-Khosrowshahi
- Chemical Engineering Department, Faculty of Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Marziyeh Fathi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Omidain
- Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL, 33328, USA
| | - Yadollah Omidi
- Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL, 33328, USA.
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25
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Green synthesis of chitosan-stabilized silver-colloidal nanoparticles immobilized on white-silica-gel beads and the antibacterial activities in a simulated-air-filter. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103596] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Gao Z, Wang Q, Yao Q, Zhang P. Application of Electrospun Nanofiber Membrane in the Treatment of Diabetic Wounds. Pharmaceutics 2021; 14:6. [PMID: 35056901 PMCID: PMC8780153 DOI: 10.3390/pharmaceutics14010006] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/12/2021] [Accepted: 12/16/2021] [Indexed: 01/09/2023] Open
Abstract
Diabetic wounds are complications of diabetes which are caused by skin dystrophy because of local ischemia and hypoxia. Diabetes causes wounds in a pathological state of inflammation, resulting in delayed wound healing. The structure of electrospun nanofibers is similar to that of the extracellular matrix (ECM), which is conducive to the attachment, growth, and migration of fibroblasts, thus favoring the formation of new skin tissue at the wound. The composition and size of electrospun nanofiber membranes can be easily adjusted, and the controlled release of loaded drugs can be realized by regulating the fiber structure. The porous structure of the fiber membrane is beneficial to gas exchange and exudate absorption at the wound, and the fiber surface can be easily modified to give it function. Electrospun fibers can be used as wound dressing and have great application potential in the treatment of diabetic wounds. In this study, the applications of polymer electrospun fibers, nanoparticle-loaded electrospun fibers, drug-loaded electrospun fibers, and cell-loaded electrospun fibers, in the treatment of diabetic wounds were reviewed, and provide new ideas for the effective treatment of diabetic wounds.
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Affiliation(s)
| | | | - Qingqiang Yao
- School of Pharmacy and Pharmaceutical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China; (Z.G.); (Q.W.)
| | - Pingping Zhang
- School of Pharmacy and Pharmaceutical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China; (Z.G.); (Q.W.)
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Hileuskaya KS, Mashkin ME, Kraskouski AN, Kabanava VS, Stepanova EA, Kuzminski II, Kulikouskaya VI, Agabekov VE. Hydrothermal Synthesis and Properties of Chitosan–Silver Nanocomposites. RUSS J INORG CHEM+ 2021. [DOI: 10.1134/s0036023621080064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ardean C, Davidescu CM, Nemeş NS, Negrea A, Ciopec M, Duteanu N, Negrea P, Duda-Seiman D, Musta V. Factors Influencing the Antibacterial Activity of Chitosan and Chitosan Modified by Functionalization. Int J Mol Sci 2021; 22:7449. [PMID: 34299068 PMCID: PMC8303267 DOI: 10.3390/ijms22147449] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 01/13/2023] Open
Abstract
The biomedical and therapeutic importance of chitosan and chitosan derivatives is the subject of interdisciplinary research. In this analysis, we intended to consolidate some of the recent discoveries regarding the potential of chitosan and its derivatives to be used for biomedical and other purposes. Why chitosan? Because chitosan is a natural biopolymer that can be obtained from one of the most abundant polysaccharides in nature, which is chitin. Compared to other biopolymers, chitosan presents some advantages, such as accessibility, biocompatibility, biodegradability, and no toxicity, expressing significant antibacterial potential. In addition, through chemical processes, a high number of chitosan derivatives can be obtained with many possibilities for use. The presence of several types of functional groups in the structure of the polymer and the fact that it has cationic properties are determinant for the increased reactive properties of chitosan. We analyzed the intrinsic properties of chitosan in relation to its source: the molecular mass, the degree of deacetylation, and polymerization. We also studied the most important extrinsic factors responsible for different properties of chitosan, such as the type of bacteria on which chitosan is active. In addition, some chitosan derivatives obtained by functionalization and some complexes formed by chitosan with various metallic ions were studied. The present research can be extended in order to analyze many other factors than those mentioned. Further in this paper were discussed the most important factors that influence the antibacterial effect of chitosan and its derivatives. The aim was to demonstrate that the bactericidal effect of chitosan depends on a number of very complex factors, their knowledge being essential to explain the role of each of them for the bactericidal activity of this biopolymer.
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Affiliation(s)
- Cristina Ardean
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, 2 Piata Victoriei, 300006 Timisoara, Romania; (C.A.); (A.N.); (M.C.); (N.D.); (P.N.)
| | - Corneliu Mircea Davidescu
- Renewable Energy Research Institute-ICER, University Politehnica of Timisoara, 138 Gavril Musicescu Street, 300774 Timisoara, Romania;
| | - Nicoleta Sorina Nemeş
- Renewable Energy Research Institute-ICER, University Politehnica of Timisoara, 138 Gavril Musicescu Street, 300774 Timisoara, Romania;
| | - Adina Negrea
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, 2 Piata Victoriei, 300006 Timisoara, Romania; (C.A.); (A.N.); (M.C.); (N.D.); (P.N.)
| | - Mihaela Ciopec
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, 2 Piata Victoriei, 300006 Timisoara, Romania; (C.A.); (A.N.); (M.C.); (N.D.); (P.N.)
| | - Narcis Duteanu
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, 2 Piata Victoriei, 300006 Timisoara, Romania; (C.A.); (A.N.); (M.C.); (N.D.); (P.N.)
| | - Petru Negrea
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, 2 Piata Victoriei, 300006 Timisoara, Romania; (C.A.); (A.N.); (M.C.); (N.D.); (P.N.)
| | - Daniel Duda-Seiman
- University of Medicine and Pharmacy “Victor Babeș” Timișoara, 2 Piața Eftimie Murgu, 300041 Timișoara, Romania
| | - Virgil Musta
- University of Medicine and Pharmacy “Victor Babeș” Timișoara, 2 Piața Eftimie Murgu, 300041 Timișoara, Romania
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Sivanesan I, Gopal J, Muthu M, Shin J, Mari S, Oh J. Green Synthesized Chitosan/Chitosan Nanoforms/Nanocomposites for Drug Delivery Applications. Polymers (Basel) 2021; 13:2256. [PMID: 34301013 PMCID: PMC8309384 DOI: 10.3390/polym13142256] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 11/16/2022] Open
Abstract
Chitosan has become a highlighted polymer, gaining paramount importance and research attention. The fact that this valuable polymer can be extracted from food industry-generated shell waste gives it immense value. Chitosan, owing to its biological and physicochemical properties, has become an attractive option for biomedical applications. This review briefly runs through the various methods involved in the preparation of chitosan and chitosan nanoforms. For the first time, we consolidate the available scattered reports on the various attempts towards greens synthesis of chitosan, chitosan nanomaterials, and chitosan nanocomposites. The drug delivery applications of chitosan and its nanoforms have been reviewed. This review points to the lack of systematic research in the area of green synthesis of chitosan. Researchers have been concentrating more on recovering chitosan from marine shell waste through chemical and synthetic processes that generate toxic wastes, rather than working on eco-friendly green processes-this is projected in this review. This review draws the attention of researchers to turn to novel and innovative green processes. More so, there are scarce reports on the application of green synthesized chitosan nanoforms and nanocomposites towards drug delivery applications. This is another area that deserves research focus. These have been speculated and highlighted as future perspectives in this review.
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Affiliation(s)
- Iyyakkannu Sivanesan
- Department of Bioresources and Food Science, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, Korea
| | - Judy Gopal
- Laboratory of Neo Natural Farming, Chunnampet, Tamil Nadu 603 401, India
| | - Manikandan Muthu
- Laboratory of Neo Natural Farming, Chunnampet, Tamil Nadu 603 401, India
| | - Juhyun Shin
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul 143-701, Korea
| | - Selvaraj Mari
- Department of Chemistry, Guru Nanak College, Chennai 600 042, India
| | - Jaewook Oh
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul 143-701, Korea
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Mohamady Hussein MA, Guler E, Rayaman E, Cam ME, Sahin A, Grinholc M, Sezgin Mansuroglu D, Sahin YM, Gunduz O, Muhammed M, El-Sherbiny IM, Megahed M. Dual-drug delivery of Ag-chitosan nanoparticles and phenytoin via core-shell PVA/PCL electrospun nanofibers. Carbohydr Polym 2021; 270:118373. [PMID: 34364617 DOI: 10.1016/j.carbpol.2021.118373] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/06/2021] [Accepted: 06/21/2021] [Indexed: 12/20/2022]
Abstract
Dual-drug delivery systems were constructed through coaxial techniques, which were convenient for the model drugs used the present work. This study aimed to fabricate core-shell electrospun nanofibrous membranes displaying simultaneous cell proliferation and antibacterial activity. For that purpose, phenytoin (Ph), a well-known proliferative agent, was loaded into a polycaprolactone (PCL) shell membrane, and as-prepared silver-chitosan nanoparticles (Ag-CS NPs), as biocidal agents, were embedded in a polyvinyl alcohol (PVA) core layer. The morphology, chemical composition, mechanical and thermal properties of the nanofibrous membranes were characterized by FESEM/STEM, FTIR and DSC. The coaxial PVA-Ag CS NPs/PCL-Ph nanofibers (NFs) showed more controlled Ph release than PVA/PCL-Ph NFs. There was notable improvement in the morphology, thermal, mechanical, antibacterial properties and cytobiocompatibility of the fibers upon incorporation of Ph and Ag-CS NPs. The proposed core-shell PVA/PCL NFs represent promising scaffolds for tissue regeneration and wound healing by the effective dual delivery of phenytoin and Ag-CS NPs.
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Affiliation(s)
- Mohamed Ahmed Mohamady Hussein
- Clinic of Dermatology, University Hospital of RWTH Aachen, Aachen 52074, Germany; Department of Pharmacology, Medical Research Division, National Research Center, Dokki, Cairo 12622, Egypt.
| | - Ece Guler
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey; Department of Pharmacology, Faculty of Pharmacy, Marmara University, Istanbul 34716, Turkey
| | - Erkan Rayaman
- Department of Pharmaceutical Microbiology, Marmara University, Istanbul, Turkey.
| | - Muhammet Emin Cam
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey; Department of Pharmacology, Faculty of Pharmacy, Marmara University, Istanbul 34716, Turkey; Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK.
| | - Ali Sahin
- Department of Biochemistry, School of Medicine/Genetic and Metabolic Diseases Research and Investigation Center, Marmara University, 34722 Istanbul, Turkey.
| | - Mariusz Grinholc
- Laboratory of Molecular Diagnostics, Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk, Gdansk, Poland.
| | - Demet Sezgin Mansuroglu
- Polymer Technologies and Composite Application and Research Center (ArelPOTKAM), Istanbul Arel University, Istanbul 34537, Turkey
| | - Yesim Müge Sahin
- Polymer Technologies and Composite Application and Research Center (ArelPOTKAM), Istanbul Arel University, Istanbul 34537, Turkey.
| | - Oguzhan Gunduz
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey.
| | - Mamoun Muhammed
- KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
| | - Ibrahim M El-Sherbiny
- Nanomedicine Laboratory, Center for Materials Science (CMS), Zewail City of Science and Technology, 6th of October, Giza 12578, Egypt.
| | - Mosaad Megahed
- Clinic of Dermatology, University Hospital of RWTH Aachen, Aachen 52074, Germany.
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Enhancement of Nano-Biopolymer Antibacterial Activity by Pulsed Electric Fields. Polymers (Basel) 2021; 13:polym13111869. [PMID: 34200040 PMCID: PMC8200249 DOI: 10.3390/polym13111869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 05/20/2021] [Accepted: 05/30/2021] [Indexed: 11/17/2022] Open
Abstract
Chronic wounds are commonly colonized with bacteria in a way that prevents full healing process and capacity for repair. Nano-chitosan, a biodegradable and nontoxic biopolymer, has shown bacteriostatic activity against a wide spectrum of bacteria. Effectively, pulsed electromagnetic fields are shown to have both wound healing enhancement and antibacterial activity. This work aimed to combine the use of nano-chitosan and exposure to a pulsed electric field to overcome two common types of infectious bacteria, namely P. aeruginosa and S. aureus. Here, bacteria growing rate, growth kinetics and cell cytotoxicity (levels of lactate dehydrogenase, protein leakage and nucleic acid leakage) were investigated. Our findings confirmed the maximum antibacterial synergistic combination of nano-chitosan and exposure against P. aeruginosa than using each one alone. It is presumed that the exposure has influenced bacteria membrane charge distribution in a manner that allowed more chitosan to anchor the surface and enter inside the cell. Significantly, cell cytotoxicity substantiates high enzymatic levels as a result of cell membrane disintegration. In conclusion, exposure to pulsed electromagnetic fields has a synergistic antibacterial effect against S. aureus and P. aeruginosa with maximum inhibitory effect for the last one. Extensive work should be done to evaluate the combination against different bacteria types to get general conclusive results. The ability of using pulsed electromagnetic fields as a wound healing accelerator and antibacterial cofactor has been proved, but in vivo experimental work in the future to verify the use of such a new combination against infectious wounds and to determine optimum treatment conditions is a must.
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Ehsani M, Soleymani J, Mohammadalizadeh P, Hasanzadeh M, Jouyban A, Khoubnasabjafari M, Vaez-Gharamaleki Y. Low potential detection of doxorubicin using a sensitive electrochemical sensor based on glassy carbon electrode modified with silver nanoparticles-supported poly(chitosan): A new platform in pharmaceutical analysis. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106101] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Meena M, Zehra A, Swapnil P, Harish, Marwal A, Yadav G, Sonigra P. Endophytic Nanotechnology: An Approach to Study Scope and Potential Applications. Front Chem 2021; 9:613343. [PMID: 34113600 PMCID: PMC8185355 DOI: 10.3389/fchem.2021.613343] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 01/18/2021] [Indexed: 12/11/2022] Open
Abstract
Nanotechnology has become a very advanced and popular form of technology with huge potentials. Nanotechnology has been very well explored in the fields of electronics, automobiles, construction, medicine, and cosmetics, but the exploration of nanotecnology's use in agriculture is still limited. Due to climate change, each year around 40% of crops face abiotic and biotic stress; with the global demand for food increasing, nanotechnology is seen as the best method to mitigate challenges in disease management in crops by reducing the use of chemical inputs such as herbicides, pesticides, and fungicides. The use of these toxic chemicals is potentially harmful to humans and the environment. Therefore, using NPs as fungicides/ bactericides or as nanofertilizers, due to their small size and high surface area with high reactivity, reduces the problems in plant disease management. There are several methods that have been used to synthesize NPs, such as physical and chemical methods. Specially, we need ecofriendly and nontoxic methods for the synthesis of NPs. Some biological organisms like plants, algae, yeast, bacteria, actinomycetes, and fungi have emerged as superlative candidates for the biological synthesis of NPs (also considered as green synthesis). Among these biological methods, endophytic microorganisms have been widely used to synthesize NPs with low metallic ions, which opens a new possibility on the edge of biological nanotechnology. In this review, we will have discussed the different methods of synthesis of NPs, such as top-down, bottom-up, and green synthesis (specially including endophytic microorganisms) methods, their mechanisms, different forms of NPs, such as magnesium oxide nanoparticles (MgO-NPs), copper nanoparticles (Cu-NPs), chitosan nanoparticles (CS-NPs), β-d-glucan nanoparticles (GNPs), and engineered nanoparticles (quantum dots, metalloids, nonmetals, carbon nanomaterials, dendrimers, and liposomes), and their molecular approaches in various aspects. At the molecular level, nanoparticles, such as mesoporous silica nanoparticles (MSN) and RNA-interference molecules, can also be used as molecular tools to carry genetic material during genetic engineering of plants. In plant disease management, NPs can be used as biosensors to diagnose the disease.
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Affiliation(s)
- Mukesh Meena
- Laboratory of Phytopathology and Microbial Biotechnology, Department of Botany, Mohanlal Sukhadia University, Udaipur, India
| | - Andleeb Zehra
- Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Prashant Swapnil
- Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, India
- Department of Botany, Acharya Narendra Dev College, University of Delhi, New Delhi, India
| | - Harish
- Plant Biotechnology Laboratory, Department of Botany, Mohanlal Sukhadia University, Udaipur, India
| | - Avinash Marwal
- Department of Biotechnology, Vigyan Bhawan, Mohanlal Sukhadia University, Udaipur, India
| | - Garima Yadav
- Laboratory of Phytopathology and Microbial Biotechnology, Department of Botany, Mohanlal Sukhadia University, Udaipur, India
| | - Priyankaraj Sonigra
- Laboratory of Phytopathology and Microbial Biotechnology, Department of Botany, Mohanlal Sukhadia University, Udaipur, India
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Hassanen EI, Morsy EA, Hussien AM, Farroh KY, Ali ME. Comparative assessment of the bactericidal effect of nanoparticles of copper oxide, silver, and chitosan-silver against Escherichia coli infection in broilers. Biosci Rep 2021; 41:BSR20204091. [PMID: 33786574 PMCID: PMC8056002 DOI: 10.1042/bsr20204091] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 02/18/2021] [Accepted: 02/25/2021] [Indexed: 12/03/2022] Open
Abstract
Escherichia coli infection is considered one of the most economically important multi-systemic diseases in poultry farms. Several nanoparticles such as silver, chitosan, and copper oxide are known to be highly toxic to several microbes. However, there are no data concerning their success against in vivo experimental E. coli infection in broilers. Therefore, the present study was designed to investigate the bactericidal effect of low doses of CuO-NPs (5 mg/kg bwt), Ag-NPs (0.5 mg/kg bwt), and Ch-Ag NPs (0.5 mg/kg bwt) against E. coli experimental infection in broilers. One hundred chicks were divided into five groups as follows: (1) control; (2) E. coli (4 × 108 CFU/ml) challenged; (3) E. coli +CuO-NPs; (4) E. coli +Ag-NPs; (5) E. coli +Ch-Ag NPs. The challenged untreated group, not NPs treated groups, recorded the lowest weight gain as well as the highest bacterial count and lesion score in all examined organs. The highest liver content of silver was observed in Ag-NPs treated group compared with the Ch-Ag NPs treated group. Our results concluded that Ch-Ag NPs not only had the best antibacterial effects but also acted as a growth promoter in broilers without leaving any residues in edible organs. We recommend using Ch-Ag NPs in broiler farms instead of antibiotics or probiotics.
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Affiliation(s)
- Eman I. Hassanen
- Pathology Department, Faculty of Veterinary Medicine, Cairo University, Giza 12613, Cairo, Egypt
| | - Eman A. Morsy
- Poultry Disease Department, Faculty of Veterinary Medicine, Cairo University, Giza 12613, Cairo, Egypt
| | - Ahmed M. Hussien
- Toxicology and Forensic Medicine Department, Faculty of Veterinary Medicine, Cairo University, Giza 12613, Cairo, Egypt
| | - Khaled Y. Farroh
- Nanotechnology Department, Agricultural Research Center, Giza 12619, Cairo, Egypt
| | - Merhan E. Ali
- Pathology Department, Faculty of Veterinary Medicine, Cairo University, Giza 12613, Cairo, Egypt
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Hussein MAM, Grinholc M, Dena ASA, El-Sherbiny IM, Megahed M. Boosting the antibacterial activity of chitosan–gold nanoparticles against antibiotic–resistant bacteria by Punicagranatum L. extract. Carbohydr Polym 2021; 256:117498. [DOI: 10.1016/j.carbpol.2020.117498] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 12/04/2020] [Accepted: 12/07/2020] [Indexed: 12/19/2022]
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Zienkiewicz-Strzałka M, Deryło-Marczewska A. Small AgNP in the Biopolymer Nanocomposite System. Int J Mol Sci 2020; 21:ijms21249388. [PMID: 33317218 PMCID: PMC7763337 DOI: 10.3390/ijms21249388] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/06/2020] [Accepted: 12/07/2020] [Indexed: 12/25/2022] Open
Abstract
In this work, ultra-small and stable silver nanoparticles (AgNP) on chitosan biopolymer (BP/AgP) were prepared by in situ reduction of the diamminesilver(I) complex ([Ag(NH3)2]+) to create a biostatic membrane system. The small AgNP (3 nm) as a stable source of silver ions, their crystal form, and homogeneous distribution in the whole solid membrane were confirmed by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and atomic force microscopy (AFM). The X-ray photoelectron spectroscopy (XPS) and Auger analysis were applied to investigate the elemental composition, concentration, and chemical state of surface atoms. It was found that ultra-small metallic nanoparticles might form a steady source of silver ions and enhance the biostatic properties of solid membranes. Ultra-small AgNP with disturbed electronic structure and plasmonic properties may generate interaction between amine groups of the biopolymer for improving the homogeneity of the nanometallic layer. In this work, the significant differences between the typical way (deposition of ex-situ-prepared AgNP) and the proposed in-situ synthesis approach were determined. The improved thermal stability (by thermogravimetry and differential scanning calorimetry (TG/DSC) analysis) for BP/AgP was observed and explained by the presence of the protective layer of a low-molecular silver phase. Finally, the antibacterial activity of the BP/AgP nanocomposite was tested using selected bacteria biofilms. The grafted membrane showed clear inhibition properties by destruction and multiple damages of bacteria cells. The possible mechanisms of biocidal activity were discussed, and the investigation of the AgNP influence on the bacteria body was illustrated by AFM measurements. The results obtained concluded that the biopolymer membrane properties were significantly improved by the integration with ultra-small Ag nanoparticles, which added value to its applications as a biostatic membrane system for filtration and separation issues.
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Dubashynskaya NV, Skorik YA. Polymyxin Delivery Systems: Recent Advances and Challenges. Pharmaceuticals (Basel) 2020; 13:E83. [PMID: 32365637 PMCID: PMC7281078 DOI: 10.3390/ph13050083] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 04/26/2020] [Accepted: 04/27/2020] [Indexed: 02/07/2023] Open
Abstract
Polymyxins are vital antibiotics for the treatment of multiresistant Gram-negative ESKAPE pathogen infections. However, their clinical value is limited by their high nephrotoxicity and neurotoxicity, as well as their poor permeability and absorption in the gastrointestinal tract. This review focuses on various polymyxin delivery systems that improve polymyxin bioavailability and reduce drug toxicity through targeted and controlled release. Currently, the most suitable systems for improving oral, inhalation, and parenteral polymyxin delivery are polymer particles, liposomes, and conjugates, while gels, polymer fibers, and membranes are attractive materials for topical administration of polymyxin for the treatment of infected wounds and burns. In general, the application of these systems protects polymyxin molecules from the negative effects of both physiological and pathological factors while achieving higher concentrations at the target site and reducing dosage and toxicity. Improving the properties of polymyxin will be of great interest to researchers who are focused on developing antimicrobial drugs that show increased efficacy and safety.
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Affiliation(s)
| | - Yury A. Skorik
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, St. Petersburg 199004, Russia;
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