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Kasza K, Soukarieh F, Romero M, Hardie KR, Gurnani P, Cámara M, Alexander C. Triblock copolymer micelles enhance solubility, permeability and activity of a quorum sensing inhibitor against Pseudomonas aeruginosa biofilms. RSC APPLIED POLYMERS 2024; 2:444-455. [PMID: 38800514 PMCID: PMC11114570 DOI: 10.1039/d3lp00208j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 02/26/2024] [Indexed: 05/29/2024]
Abstract
Antimicrobial resistance is a threat to public health for which new treatments are urgently required. The capability of bacteria to form biofilms is of particular concern as it enables high bacterial tolerance to conventional therapies by reducing drug diffusion through the dense, exopolymeric biofilm matrix and the upregulation of antimicrobial resistance machinery. Quorum sensing (QS), a process where bacteria use diffusible chemical signals to coordinate group behaviour, has been shown to be closely interconnected with biofilm formation and bacterial virulence in many top priority pathogens including Pseudomonas aeruginosa. Inhibition of QS pathways therefore pose an attractive target for new therapeutics. We have recently reported a new series of pqs quorum sensing inhibitors (QSIs) that serve as potentiators for antibiotics in P. aeruginosa infections. The impact on biofilms of some reported QSIs was however hindered by their poor penetration through the bacterial biofilm, limiting the potential for clinical translation. In this study we developed a series of poly(β-amino ester) (PBAE) triblock copolymers and evaluated their ability to form micelles, encapsulate a QSI and enhance subsequent delivery to P. aeruginosa biofilms. We observed that the QSI could be released from polymer micelles, perturbing the pqs pathway in planktonic P. aeruginosa. In addition, one of the prepared polymer variants increased the QSIs efficacy, leading to an enhanced potentiation of ciprofloxacin (CIP) action and therefore improved reduction in biofilm viability, compared to the non-encapsulated QSI. Thus, we demonstrate QSI encapsulation in polymeric particles can enhance its efficacy through improved biofilm penetration.
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Affiliation(s)
- Karolina Kasza
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham NG7 2RD UK
- National Biofilms Innovation Centre, School of Life Sciences, Biodiscovery Institute, University Park, University of Nottingham Nottingham NG7 2RD UK
| | - Fadi Soukarieh
- National Biofilms Innovation Centre, School of Life Sciences, Biodiscovery Institute, University Park, University of Nottingham Nottingham NG7 2RD UK
| | - Manuel Romero
- National Biofilms Innovation Centre, School of Life Sciences, Biodiscovery Institute, University Park, University of Nottingham Nottingham NG7 2RD UK
- Department of Microbiology and Parasitology, Faculty of Biology-CIBUS, Universidade de Santiago de Compostela Santiago de Compostela 15782 Spain
- Aquatic One Health Research Center (ARCUS), Universidade de Santiago de Compostela Santiago de Compostela, 15782 Spain
| | - Kim R Hardie
- National Biofilms Innovation Centre, School of Life Sciences, Biodiscovery Institute, University Park, University of Nottingham Nottingham NG7 2RD UK
| | - Pratik Gurnani
- UCL School of Pharmacy, University College London 29-39 Brunswick Square London WC1N 1AX UK
| | - Miguel Cámara
- National Biofilms Innovation Centre, School of Life Sciences, Biodiscovery Institute, University Park, University of Nottingham Nottingham NG7 2RD UK
| | - Cameron Alexander
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham NG7 2RD UK
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Afzal O, Altamimi ASA, Nadeem MS, Alzarea SI, Almalki WH, Tariq A, Mubeen B, Murtaza BN, Iftikhar S, Riaz N, Kazmi I. Nanoparticles in Drug Delivery: From History to Therapeutic Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12244494. [PMID: 36558344 PMCID: PMC9781272 DOI: 10.3390/nano12244494] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/04/2022] [Accepted: 12/14/2022] [Indexed: 05/25/2023]
Abstract
Current research into the role of engineered nanoparticles in drug delivery systems (DDSs) for medical purposes has developed numerous fascinating nanocarriers. This paper reviews the various conventionally used and current used carriage system to deliver drugs. Due to numerous drawbacks of conventional DDSs, nanocarriers have gained immense interest. Nanocarriers like polymeric nanoparticles, mesoporous nanoparticles, nanomaterials, carbon nanotubes, dendrimers, liposomes, metallic nanoparticles, nanomedicine, and engineered nanomaterials are used as carriage systems for targeted delivery at specific sites of affected areas in the body. Nanomedicine has rapidly grown to treat certain diseases like brain cancer, lung cancer, breast cancer, cardiovascular diseases, and many others. These nanomedicines can improve drug bioavailability and drug absorption time, reduce release time, eliminate drug aggregation, and enhance drug solubility in the blood. Nanomedicine has introduced a new era for drug carriage by refining the therapeutic directories of the energetic pharmaceutical elements engineered within nanoparticles. In this context, the vital information on engineered nanoparticles was reviewed and conferred towards the role in drug carriage systems to treat many ailments. All these nanocarriers were tested in vitro and in vivo. In the coming years, nanomedicines can improve human health more effectively by adding more advanced techniques into the drug delivery system.
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Affiliation(s)
- Obaid Afzal
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Abdulmalik S. A. Altamimi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Muhammad Shahid Nadeem
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sami I. Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka 72341, Saudi Arabia
| | - Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Aqsa Tariq
- Institute of Molecular Biology and Biotechnology (IMBB), The University of Lahore, Lahore 54000, Pakistan
| | - Bismillah Mubeen
- Institute of Molecular Biology and Biotechnology (IMBB), The University of Lahore, Lahore 54000, Pakistan
| | - Bibi Nazia Murtaza
- Department of Zoology, Abbottabad University of Science and Technology (AUST), Abbottabad 22310, Pakistan
| | - Saima Iftikhar
- School of Biological Sciences, University of Punjab, Lahore 54000, Pakistan
| | - Naeem Riaz
- Department of Pharmacy, COMSATS University, Abbottabad 22020, Pakistan
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Merzougui C, Miao F, Liao Z, Wang L, Wei Y, Huang D. Electrospun nanofibers with antibacterial properties for wound dressings. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:2165-2183. [PMID: 36001387 DOI: 10.1080/09205063.2022.2099662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/03/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
The antibacterial nanofibers have been proposed as an interesting material for wound healing management, since the majority of traditional wound dressings exhibit issues and complications such as infection, pain, discomfort, and poor adhesive proprieties. It allows the organism's passage through the dressing and delay the wound healing progression. Electrospun nanofibers have been intensively investigated for wound dressings in tissue engineering applications due to their distinctive features and structural similarities to the extracellular matrix including the various available methods to load the antibacterial compounds onto the nanofiber webs. To construct an effective electrospun wound dressing, various efforts have been made to design different strategies to develop advanced polymers, such as employing synthetic and/or natural materials, modifying fiber orientation, and incorporating chemicals and metallic nanoparticles (NPs) as intriguing materials for antibacterial bandages. Thus, this review summarizes the relevant recent studies on the production of electrospun antibacterial nanofibers from a wide variety of polymers used in biomedical applications for wound dressings.
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Affiliation(s)
- Chaima Merzougui
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Shanxi Key Laboratory of Materials Strength & Structural Impact, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Fenyan Miao
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Shanxi Key Laboratory of Materials Strength & Structural Impact, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Ziming Liao
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Shanxi Key Laboratory of Materials Strength & Structural Impact, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Longfei Wang
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Shanxi Key Laboratory of Materials Strength & Structural Impact, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Yan Wei
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Shanxi Key Laboratory of Materials Strength & Structural Impact, Taiyuan University of Technology, Taiyuan, P.R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, P.R. China
| | - Di Huang
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Shanxi Key Laboratory of Materials Strength & Structural Impact, Taiyuan University of Technology, Taiyuan, P.R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, P.R. China
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Gupta V, Kant V, Sharma A, Sharma M. Comparative evaluation of antibacterial potentials of nano cobalt oxide with standard antimicrobials. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Iles B, Ribeiro de Sá Guimarães Nolêto I, Dourado FF, de Oliveira Silva Ribeiro F, de Araújo AR, de Oliveira TM, Souza JMT, Barros AB, Sousa GC, de Jesus Oliveira AC, da Silva Martins C, de Oliveira Viana Veras M, de Carvalho Leitão RF, de Souza de Almeida Leite JR, da Silva DA, Medeiros JVR. Alendronate sodium-polymeric nanoparticles display low toxicity in gastric mucosal of rats and Ofcol II cells. NANOIMPACT 2021; 24:100355. [PMID: 35559814 DOI: 10.1016/j.impact.2021.100355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 06/15/2023]
Abstract
The use of bisphosphonates constitutes the gold-standard therapy for the control and treatment of bone diseases. However, its long-term use may lead to gastric problems, which limits the treatment. Thus, this study aimed to formulate a nanostructured system with biodegradable polymers for the controlled release of alendronate sodium. The nanoparticles were characterized, and its gastric toxicity was investigated in rats. The synthesis process proved to be effective for encapsulating alendronate sodium, exhibiting nanoparticles with an average size of 51.02 nm and 98.5% of alendronate sodium incorporation. The release tests demonstrated a controlled release of the drug in 420 min, while the morphological analyzes showed spherical shapes and no apparent roughness. The biological tests demonstrated that the alendronate sodium nanoformulation reversed the gastric lesions, maintaining the normal levels of malondialdehyde and myeloperoxidase. Also, the encapsulated alendronate sodium showed no toxicity in murine osteoblastic cells, even at high concentrations.
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Affiliation(s)
- Bruno Iles
- Laboratory of Inflammation and Gastrointestinal Disorders (Lafidg), Federal University of the Parnaíba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil; Biotechnology and Biodiversity Research Center (Biotec), Federal University of the Parnaiba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil
| | - Isabela Ribeiro de Sá Guimarães Nolêto
- Laboratory of Inflammation and Gastrointestinal Disorders (Lafidg), Federal University of the Parnaíba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil; Biotechnology and Biodiversity Research Center (Biotec), Federal University of the Parnaiba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil
| | - Flaviane França Dourado
- Biotechnology and Biodiversity Research Center (Biotec), Federal University of the Parnaiba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil
| | - Fábio de Oliveira Silva Ribeiro
- Biotechnology and Biodiversity Research Center (Biotec), Federal University of the Parnaiba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil
| | - Alyne Rodrigues de Araújo
- Biotechnology and Biodiversity Research Center (Biotec), Federal University of the Parnaiba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil
| | - Taiane Maria de Oliveira
- Biotechnology and Biodiversity Research Center (Biotec), Federal University of the Parnaiba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil
| | - Jessica Maria Teles Souza
- Parnaíba Delta Cell Culture Laboratory (LCC-Delta), Federal University of the Parnaíba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil
| | - Ayslan Batista Barros
- Parnaíba Delta Cell Culture Laboratory (LCC-Delta), Federal University of the Parnaíba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil
| | - Gabrielle Costa Sousa
- Laboratory of Inflammation and Gastrointestinal Disorders (Lafidg), Federal University of the Parnaíba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil; Biotechnology and Biodiversity Research Center (Biotec), Federal University of the Parnaiba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil
| | - Antônia Carla de Jesus Oliveira
- Quality Control Center for Medicines and Correlates - NCQMC, Department of Pharmaceutical Sciences, Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235 - University City, Recife, PE 50670-901, Brazil
| | - Conceição da Silva Martins
- Nucleus of Studies in Microscopy and Image Processing - NEMPI, Federal University of Ceará, Rua Alexandre Baraúna, 994 - Rodolfo Teófilo, Fortaleza, CE 60430-160, Brazil
| | - Mariana de Oliveira Viana Veras
- Nucleus of Studies in Microscopy and Image Processing - NEMPI, Federal University of Ceará, Rua Alexandre Baraúna, 994 - Rodolfo Teófilo, Fortaleza, CE 60430-160, Brazil
| | - Renata Ferreira de Carvalho Leitão
- Nucleus of Studies in Microscopy and Image Processing - NEMPI, Federal University of Ceará, Rua Alexandre Baraúna, 994 - Rodolfo Teófilo, Fortaleza, CE 60430-160, Brazil
| | - José Roberto de Souza de Almeida Leite
- Center for Research in Applied Morphology and Immunology - NuPMIA, University of Brasilia, Campus Darcy Ribeiro - Asa Norte-Brasília-DF, CEP 70.910-900 Brasilia, Brazil
| | - Durcilene Alves da Silva
- Biotechnology and Biodiversity Research Center (Biotec), Federal University of the Parnaiba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil
| | - Jand Venes Rolim Medeiros
- Laboratory of Inflammation and Gastrointestinal Disorders (Lafidg), Federal University of the Parnaíba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil; Biotechnology and Biodiversity Research Center (Biotec), Federal University of the Parnaiba Delta, Av. São Sebastião, 2819, Parnaíba, PI CEP 64202-020, Brazil.
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Bharathi DS, Boopathyraja A, Nachimuthu S, Kannan K. Green Synthesis, Characterization and Antibacterial Activity of SiO2–ZnO Nanocomposite by Dictyota bartayresiana Extract and Its Cytotoxic Effect on HT29 Cell Line. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02170-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Antibacterial efficacy of facile cyanobacterial silver nanoparticles inferred by antioxidant mechanism. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 122:111888. [PMID: 33641896 DOI: 10.1016/j.msec.2021.111888] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 01/09/2021] [Accepted: 01/11/2021] [Indexed: 01/13/2023]
Abstract
Nanoparticles (NPs) have gained importance in technological advances owing to their user friendly enhanced and efficient physical, chemical, and biological characteristics compared to their bulk counterparts. Biological synthesis of NPs by using a microorganism, enzymes, or plant extracts offers a greener and eco-friendly approach besides many advantages over physical or chemical approaches. This study reports the biosynthesis of silver nanoparticles (AgNPs) using Nostoc muscorum NCCU 442 aqueous extract as the reducing and capping agent for AgNPs synthesis. The synthesized nanoparticles were characterized by UV-VIS spectrum, SEM, EDS, TEM, AFM, DLS and XRD. Results showed distinguishing polycrystalline nature of synthesized AgNPs with surface plasmon significant band in the size range of 6-45nm with average 30 size nm. FT-IR study revealed the role of secondary metabolites present in aqueous extract for the synthesis of AgNPs. Biological activities of purified AgNPs as antioxidant and antibacterial potential showed the highest antibacterial activity against Staphylococcus aureus MTCC 902.
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Javed R, Zia M, Naz S, Aisida SO, Ain NU, Ao Q. Role of capping agents in the application of nanoparticles in biomedicine and environmental remediation: recent trends and future prospects. J Nanobiotechnology 2020; 18:172. [PMID: 33225973 PMCID: PMC7682049 DOI: 10.1186/s12951-020-00704-4] [Citation(s) in RCA: 208] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/07/2020] [Indexed: 12/25/2022] Open
Abstract
Capping agents are of utmost importance as stabilizers that inhibit the over-growth of nanoparticles and prevent their aggregation/coagulation in colloidal synthesis. The capping ligands stabilize the interface where nanoparticles interact with their medium of preparation. Specific structural features of nanoparticles are attributed to capping on their surface. These stabilizing agents play a key role in altering the biological activities and environmental perspective. Stearic effects of capping agents adsorbed on the surface of nanoparticles are responsible for such changing physico-chemical and biological characteristics. Firstly, this novel review article introduces few frequently used capping agents in the fabrication of nanoparticles. Next, recent advancements in biomedicine and environmental remediation approaches of capped nanoparticles have been elaborated. Lastly, future directions of the huge impact of capping agents on the biological environment have been summarized.![]()
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Affiliation(s)
- Rabia Javed
- Department of Tissue Engineering, China Medical University, Shenyang, 110122, China.
| | - Muhammad Zia
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
| | - Sania Naz
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
| | - Samson O Aisida
- Department of Physics and Astronomy, University of Nigeria, Nsukka, 410001, Nigeria
| | - Noor Ul Ain
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
| | - Qiang Ao
- Department of Tissue Engineering, China Medical University, Shenyang, 110122, China.,Institute of Regulatory Science for Medical Device, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
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Zahin N, Anwar R, Tewari D, Kabir MT, Sajid A, Mathew B, Uddin MS, Aleya L, Abdel-Daim MM. Nanoparticles and its biomedical applications in health and diseases: special focus on drug delivery. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:19151-19168. [PMID: 31079299 DOI: 10.1007/s11356-019-05211-0] [Citation(s) in RCA: 151] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 04/16/2019] [Indexed: 05/21/2023]
Abstract
Nanotechnology is an emerging technology that deals with nanosized particles possessing crucial research roles and application. Disciplines like chemistry, biology, physics, engineering, materials science, and health sciences provide an accumulated knowledge of nanotechnology. Nonetheless, it has vast submissions precisely in biology, electronics, and medicine. Aimed at drug delivery system, nanoparticles are based on the mechanism of entrapment of the drugs or biomolecules into the interior structure of the particles; another mechanism could be that the drugs or the biomolecules can be absorbed onto the exterior surfaces of the particles. Currently, nanoparticles (NPs) are used in the delivery of drugs, proteins, genes, vaccines, polypeptides, nucleic acids, etc. In recent years, various applications of the drug delivery system via NPs have encountered an enormous position sector like pharmaceutical, medical, biological, and others. Considering the impact of NPs in drug delivery systems, this review focuses on the detailed profile of NPs, its impact on biology and medicine, and their commercialization prospects.
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Affiliation(s)
- Nuzhat Zahin
- Department of Pharmacy, BRAC University, Dhaka, Bangladesh
| | | | - Devesh Tewari
- Department of Pharmacognosy, School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India
| | | | - Amin Sajid
- Department of Pharmacy, BRAC University, Dhaka, Bangladesh
| | - Bijo Mathew
- Division of Drug Design and Medicinal Chemistry Research Lab, Department of Pharmaceutical Chemistry, Ahalia School of Pharmacy, Palakkad, India
| | - Md Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh.
| | - Lotfi Aleya
- Chrono-Environnement Laboratory, CNRS 6249, Bourgogne Franche-Comté University, Besançon, France
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Hemolysis tendency of anticancer nanoparticles changes with type of blood group antigen: An insight into blood nanoparticle interactions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 109:110645. [PMID: 32228982 DOI: 10.1016/j.msec.2020.110645] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 07/22/2019] [Accepted: 01/03/2020] [Indexed: 12/23/2022]
Abstract
Different blood groups of ABO system have specific antigen which bestows them with different biochemical properties and hence they can show different hemolytic activity. In this report, hemolytic activity of thiol-functionalized Fe3O4-Au nanoparticles were studied in presence and absence of doxorubicin and the effect of various thiol coatings were correlated towards their hemolysis tendency. The nanoparticles were functionalized with four different amino thiols, cysteamine (CEA), cystamine (CA), cysteine (Cys) and cystine (Cyt) to form Fe3O4-Au CEA, Fe3O4-Au CA, Fe3O4-Au Cys and Fe3O4-Au Cyt nanoparticles which were loaded with anticancer drug, doxorubicin. The functionalization was characterized using ATR-FTIR, HR-TEM, XPS and other spectroscopic methods. Maximum drug encapsulation efficiency of 83% was observed with Fe3O4-Au CA nanoparticles. In-vitro experiments were performed on HeLa cells to check the cellular uptake and cytotoxicity using MTT assay. Hemolytic activity was then analyzed with all the blood groups (positive and negative). The amino acid functionalized, Fe3O4-Au Cys and Fe3O4-Au Cyt nanoparticles, shows lesser hemolysis compared to amino thiol functionalized Fe3O4-Au CEA, and Fe3O4-Au CA nanoparticles. In positive blood groups, the Fe3O4-Au CA nanoparticles shows the highest rate of hemolysis followed by Fe3O4-Au CEA, while the lowest hemolysis rate was observed for Fe3O4-Au Cyt nanoparticles. For negative blood groups, the thiol coated nanoparticles show more abrupt hemolysis rate depending upon the type of antigen.
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Aqueous synthesis and antibacterial activity of Silver nanoparticles against pseudomonas putida. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.matpr.2019.03.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Severino P, da Silva CF, Andrade LN, de Lima Oliveira D, Campos J, Souto EB. Alginate Nanoparticles for Drug Delivery and Targeting. Curr Pharm Des 2019; 25:1312-1334. [PMID: 31465282 DOI: 10.2174/1381612825666190425163424] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 04/15/2019] [Indexed: 12/31/2022]
Abstract
Nanotechnology refers to the control, manipulation, study and manufacture of structures and devices at the nanometer size range. The small size, customized surface, improved solubility and multi-functionality of nanoparticles will continue to create new biomedical applications, as nanoparticles allow to dominate stability, solubility and bioavailability, as well controlled release of drugs. The type of a nanoparticle, and its related chemical, physical and morphological properties influence its interaction with living cells, as well as determine the route of clearance and possible toxic effects. This field requires cross-disciplinary research and gives opportunities to design and develop multifunctional devices, which allow the diagnosis and treatment of devastating diseases. Over the past few decades, biodegradable polymers have been studied for the fabrication of drug delivery systems. There was extensive development of biodegradable polymeric nanoparticles for drug delivery and tissue engineering, in view of their applications in controlling the release of drugs, stabilizing labile molecules from degradation and site-specific drug targeting. The primary aim is to reduce dosing frequency and prolong the therapeutic outcomes. For this purpose, inert excipients should be selected, being biopolymers, e.g. sodium alginate, commonly used in controlled drug delivery. Nanoparticles composed of alginate (known as anionic polysaccharide widely distributed in the cell walls of brown algae which, when in contact with water, forms a viscous gum) have emerged as one of the most extensively characterized biomaterials used for drug delivery and targeting a set of administration routes. Their advantages include not only the versatile physicochemical properties, which allow chemical modifications for site-specific targeting but also their biocompatibility and biodegradation profiles, as well as mucoadhesiveness. Furthermore, mechanical strength, gelation, and cell affinity can be modulated by combining alginate nanoparticles with other polymers, surface tailoring using specific targeting moieties and by chemical or physical cross-linking. However, for every physicochemical modification in the macromolecule/ nanoparticles, a new toxicological profile may be obtained. In this paper, the different aspects related to the use of alginate nanoparticles for drug delivery and targeting have been revised, as well as how their toxicological profile will determine the therapeutic outcome of the drug delivery system.
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Affiliation(s)
- Patricia Severino
- Universidade Tiradentes (Unit), Av. Murilo Dantas, 300, Farolandia, Aracaju-SE, CEP 49.032-490, Brazil
- Instituto de Tecnologia e Pesquisa, Laboratório de Nanotecnologia e Nanomedicina (LNMed) Av. Murilo Dantas, 300, Aracaju - SE, CEP 49.032-490, Brazil
| | - Classius F da Silva
- Universidade Federal de Sao Paulo, Instituto de Ciências Ambientais, Quimicas e Farmaceuticas, Departamento de Engenharia Quimica, Rua Sao Nicolau, 210, Diadema - SP, CEP 09.913-030, Brazil
| | - Luciana N Andrade
- Universidade Tiradentes (Unit), Av. Murilo Dantas, 300, Farolandia, Aracaju-SE, CEP 49.032-490, Brazil
- Instituto de Tecnologia e Pesquisa, Laboratório de Nanotecnologia e Nanomedicina (LNMed) Av. Murilo Dantas, 300, Aracaju - SE, CEP 49.032-490, Brazil
| | - Daniele de Lima Oliveira
- Universidade Tiradentes (Unit), Av. Murilo Dantas, 300, Farolandia, Aracaju-SE, CEP 49.032-490, Brazil
- Instituto de Tecnologia e Pesquisa, Laboratório de Nanotecnologia e Nanomedicina (LNMed) Av. Murilo Dantas, 300, Aracaju - SE, CEP 49.032-490, Brazil
| | - Joana Campos
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Polo das Ciencias da Saude, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Eliana B Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Polo das Ciencias da Saude, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar 4710-057 Braga, Portugal
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Sheorain J, Mehra M, Thakur R, Grewal S, Kumari S. In vitro anti-inflammatory and antioxidant potential of thymol loaded bipolymeric (tragacanth gum/chitosan) nanocarrier. Int J Biol Macromol 2018; 125:1069-1074. [PMID: 30552929 DOI: 10.1016/j.ijbiomac.2018.12.095] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 11/26/2018] [Accepted: 12/09/2018] [Indexed: 10/27/2022]
Abstract
Thymol is a natural bioactive agent which possesses various medicinal properties like antimicrobial, antifungal, anti-inflammatory, anticancer etc. and has been widely used in traditional medicine and food industries. It is eco-friendly, cheap, nontoxic and has been granted generally recognized as safe (GRAS) notation by USFDA. Its use is somewhat muted due to drawbacks like lesser bioavailability, comparatively poor solubility and low susceptibility to oxidation. In the present work, nanoformulation of thymol was prepared by ionic complexation of tragacanth gum and chitosan. Chitosan of different concentrations was used to obtain desired particle size and encapsulation efficiency. It was noted that a ratio of 1:2 (tragacanth gum:chitosan) yielded a minimum particle size along with higher encapsulation efficiency. Morphology of these optimized nanoparticles was found to be spherical using TEM. These particles were found in the size range of 150-200 nm. Further comparative study of the prepared nanoformulation and thymol for antioxidant and anti-inflammatory efficacy was done using DPPH method and HRBC (Human red blood cell) stabilization method. The results suggested an increase in both anti-inflammatory and antioxidant activity of thymol nanoformulation. This study will open up new avenues for application in the field of food and pharmaceutical industries.
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Affiliation(s)
- Jyoti Sheorain
- Department of Bio & Nano Technology, Guru Jambheshwar University of Science & Technology, Hisar, Haryana 125001, India
| | - Meenakshi Mehra
- Department of Bio & Nano Technology, Guru Jambheshwar University of Science & Technology, Hisar, Haryana 125001, India
| | - Rajesh Thakur
- Department of Bio & Nano Technology, Guru Jambheshwar University of Science & Technology, Hisar, Haryana 125001, India
| | - Sapna Grewal
- Department of Bio & Nano Technology, Guru Jambheshwar University of Science & Technology, Hisar, Haryana 125001, India
| | - Santosh Kumari
- Department of Bio & Nano Technology, Guru Jambheshwar University of Science & Technology, Hisar, Haryana 125001, India.
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14
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Application of Nanomaterials in Personal Respiratory Protection Equipment: A Literature Review. SAFETY 2018. [DOI: 10.3390/safety4040047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Exposure to air pollutants leads to a variety of health effects in humans. Inhalation is one of the most common routs of exposure to poor quality air, mostly in work environments. Respiratory masks are used to prevent breathing in hazardous gases and vapors, especially in the absence of proper controlling measures. This study aims to review the effectiveness of respiratory masks with a nanostructure. The electronic search of the genuine databases, including PubMed, Magiran, Iran Medex, Science Database (SID), Science Direct, Web of Science, and Scopus, was conducted in January and February 2017 in chronological order of publications with the keywords defined in the search strategy. Of all identified papers, nine were collected and included in the study. The results of this study indicated that the use of nanomaterials in the structure of brand new mask filters compared with conventional masks enhances the performance and efficiency of breathing air filtration, improves permeability, increases antimicrobial properties, and offers reasonable comfort to the workers.
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15
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Akram MW, Fakhar-E-Alam M, Atif M, Butt AR, Asghar A, Jamil Y, Alimgeer KS, Wang ZM. In vitro evaluation of the toxic effects of MgO nanostructure in Hela cell line. Sci Rep 2018; 8:4576. [PMID: 29545644 PMCID: PMC5854676 DOI: 10.1038/s41598-018-23105-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 03/06/2018] [Indexed: 01/28/2023] Open
Abstract
MgO is an attractive choice for carcinogenic cell destruction in photodynamic therapy, as confirmed by manifold analysis. The prime focus of the presented research is to investigate the toxicity caused by morphologically different MgO nanostructures obtained by annealing at various annealing temperatures. Smart (stimuli-responsive) MgO nanomaterials are a very promising class of nanomaterials, and their properties can be controlled by altering their size, morphology, or other relevant characteristics. The samples investigated here were grown by the co-precipitation technique. Toxicity-dependent parameters were assessed in a HeLa cell model after annealing the grown samples at 350 °C, 450 °C, and 550 °C. After the overall characterization, an analysis of toxicity caused by changes in the MgO nanostructure morphology was tested in a HeLa cell model using a neutral red assay and microscopy. The feasibility of using MgO for PDT was assessed. Empirical modelling was applied to corroborate the experimental results obtained from assessing cell viability losses and reactive oxygen species. The results indicate that MgO is an excellent candidate material for medical applications and could be utilized for its potential ability to upgrade conventionally used techniques.
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Affiliation(s)
- M Waseem Akram
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, 610054, Chengdu, China.
| | - Muhammad Fakhar-E-Alam
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, 610054, Chengdu, China
- Department of Physics, Government College University, 38000, Faisalabad, Pakistan
| | - M Atif
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, Saudi Arabia.
- National Institute of Laser and Optronics, Nilore, Islamabad, Pakistan.
| | | | - Ali Asghar
- Department of Mathematics and Statistics, University of Lahore, Lahore, Pakistan
| | - Yasir Jamil
- Laser Spectroscopy Lab., Department of Physics, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - K S Alimgeer
- COMSATS Institute of Information Technology, Islamabad, Pakistan
| | - Zhiming M Wang
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, 610054, Chengdu, China.
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16
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Antoniraj MG, Ayyavu M, Henry LJK, Nageshwar Rao G, Natesan S, Sundar DS, Kandasamy R. Cytocompatible chitosan-graft-mPEG-based 5-fluorouracil-loaded polymeric nanoparticles for tumor-targeted drug delivery. Drug Dev Ind Pharm 2017; 44:365-376. [DOI: 10.1080/03639045.2017.1371741] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- M. Gover Antoniraj
- Department of Pharmaceutical Technology, Centre for Excellence in Nanobio Translational Research (CENTRE), Anna University, BIT Campus, Tiruchirappalli, India
| | - Mahesh Ayyavu
- Centre for Excellence in Genomic Sciences, School of Biological Sciences, Madurai Kamaraj University, Madurai, India
| | - Linda Jeeva Kumari Henry
- Department of Pharmaceutical Technology, Centre for Excellence in Nanobio Translational Research (CENTRE), Anna University, BIT Campus, Tiruchirappalli, India
- National Facility for Drug Development for Academia, Pharmaceutical and Allied Industries (NFDD), Anna University, BIT Campus, Tiruchirappalli, Tamil Nadu, India
| | - Goutham Nageshwar Rao
- Centre for Excellence in Genomic Sciences, School of Biological Sciences, Madurai Kamaraj University, Madurai, India
| | - Subramanian Natesan
- Department of Pharmaceutical Technology, Centre for Excellence in Nanobio Translational Research (CENTRE), Anna University, BIT Campus, Tiruchirappalli, India
- National Facility for Drug Development for Academia, Pharmaceutical and Allied Industries (NFDD), Anna University, BIT Campus, Tiruchirappalli, Tamil Nadu, India
| | - D. Sathish Sundar
- National Facility for Drug Development for Academia, Pharmaceutical and Allied Industries (NFDD), Anna University, BIT Campus, Tiruchirappalli, Tamil Nadu, India
| | - Ruckmani Kandasamy
- Department of Pharmaceutical Technology, Centre for Excellence in Nanobio Translational Research (CENTRE), Anna University, BIT Campus, Tiruchirappalli, India
- National Facility for Drug Development for Academia, Pharmaceutical and Allied Industries (NFDD), Anna University, BIT Campus, Tiruchirappalli, Tamil Nadu, India
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17
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Kumar B, Jalodia K, Kumar P, Gautam HK. Recent advances in nanoparticle-mediated drug delivery. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.07.019] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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18
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Llera-Rojas VG, Del Real L. A, Mendoza-Muñoz N, Melgoza-Contreras LM, Quintanar-Guerrero D. Feasibility of obtaining in situ nanocapsules through modified self-microemulsifying drug delivery systems. A new manufacturing approach for oral route administration. Drug Dev Ind Pharm 2017; 43:925-931. [DOI: 10.1080/03639045.2017.1285308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Viridiana Gisela Llera-Rojas
- Laboratorio de Investigación y Posgrado en Tecnología Farmacéutica, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, México
| | - Alicia Del Real L.
- Departamento de Nanotecnología, Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Campus Juriquilla, Querétaro, México
| | - Néstor Mendoza-Muñoz
- Laboratorio de Farmacia, Facultad de Ciencias Químicas, Universidad de Colima, Carr. Coquimatlán, Colima, México
| | - Luz María Melgoza-Contreras
- Laboratorio de Tecnología Farmacéutica, Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana, Unidad Xochimilco, Ciudad de México, México
| | - David Quintanar-Guerrero
- Laboratorio de Investigación y Posgrado en Tecnología Farmacéutica, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, México
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Lozano-Pérez AA, Rivero HC, Pérez Hernández MDC, Pagán A, Montalbán MG, Víllora G, Cénis JL. Silk fibroin nanoparticles: Efficient vehicles for the natural antioxidant quercetin. Int J Pharm 2017; 518:11-19. [DOI: 10.1016/j.ijpharm.2016.12.046] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/18/2016] [Accepted: 12/20/2016] [Indexed: 11/29/2022]
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20
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Azam A, Arshad M, Dwivedi S, Ashraf MT. Antibacterial Applications of Nanomaterials. RECENT TRENDS IN NANOMATERIALS 2017. [DOI: 10.1007/978-981-10-3842-6_6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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21
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Manju S, Malaikozhundan B, Vijayakumar S, Shanthi S, Jaishabanu A, Ekambaram P, Vaseeharan B. Antibacterial, antibiofilm and cytotoxic effects of Nigella sativa essential oil coated gold nanoparticles. Microb Pathog 2015; 91:129-35. [PMID: 26703114 DOI: 10.1016/j.micpath.2015.11.021] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 11/15/2015] [Accepted: 11/19/2015] [Indexed: 11/28/2022]
Abstract
This study reports the biological synthesis of gold nanoparticles using essential oil of Nigella sativa (NsEO-AuNPs). The synthesized NsEO-AuNPs were characterized by UV-visible spectra, X-ray diffraction (XRD), FTIR and Transmission electron microscopy (TEM). UV-vis spectra of NsEO-AuNPs showed strong absorption peak at 540 nm. The X-ray diffraction analysis revealed crystalline nature of nanoparticle with distinctive facets (111, 200, 220 and 311 planes) of NsEO-AuNPs. The FTIR spectra recorded peaks at 3388, 2842, 1685, 1607, 1391 and 1018 cm(-1). TEM studies showed the spherical shape of nanoparticles and the particle size ranges between 15.6 and 28.4 nm. The antibacterial activity of NsEO-AuNPs was greater against Gram positive Staphylococcus aureus MTCC 9542 (16 mm) than Gram negative Vibrio harveyi MTCC 7771 (5 mm) at the concentration of 10 μg ml(-1). NsEO-AuNPs effectively inhibited the biofilm formation of S. aureus and V. harveyi by decreasing the hydrophobicity index (78% and 46% respectively). The in-vitro anti-lung cancer activity confirmed by MTT assay on the cell line of A549 carcinoma cells showed IC50 values of bulk Au at 87.2 μg ml(-1), N. sativa essential oil at 64.15 μg ml(-1) and NsEO-AuNPs at 28.37 μg ml(-1). The IC50 value showed that NsEO-AuNPs was highly effective in inhibiting the A549 lung cancer cells compared to bulk Au and N. sativa essential oil.
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Affiliation(s)
- Sivalingam Manju
- Crustacean Molecular Biology and Genomics Lab, Department of Animal Health and Management, 4th Floor, Science Block, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
| | - Balasubramanian Malaikozhundan
- Crustacean Molecular Biology and Genomics Lab, Department of Animal Health and Management, 4th Floor, Science Block, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
| | - Sekar Vijayakumar
- Crustacean Molecular Biology and Genomics Lab, Department of Animal Health and Management, 4th Floor, Science Block, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
| | - Sathappan Shanthi
- Crustacean Molecular Biology and Genomics Lab, Department of Animal Health and Management, 4th Floor, Science Block, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
| | - Ameeramja Jaishabanu
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - Perumal Ekambaram
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - Baskaralingam Vaseeharan
- Crustacean Molecular Biology and Genomics Lab, Department of Animal Health and Management, 4th Floor, Science Block, Alagappa University, Karaikudi 630 003, Tamil Nadu, India.
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Gold Nanoparticle Conjugation Enhances the Antiacanthamoebic Effects of Chlorhexidine. Antimicrob Agents Chemother 2015; 60:1283-8. [PMID: 26666949 DOI: 10.1128/aac.01123-15] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 11/24/2015] [Indexed: 01/14/2023] Open
Abstract
Acanthamoeba keratitis is a serious infection with blinding consequences and often associated with contact lens wear. Early diagnosis, followed by aggressive topical application of drugs, is a prerequisite in successful treatment, but even then prognosis remains poor. Several drugs have shown promise, including chlorhexidine gluconate; however, host cell toxicity at physiologically relevant concentrations remains a challenge. Nanoparticles, subcolloidal structures ranging in size from 10 to 100 nm, are effective drug carriers for enhancing drug potency. The overall aim of the present study was to determine whether conjugation with gold nanoparticles enhances the antiacanthamoebic potential of chlorhexidine. Gold-conjugated chlorhexidine nanoparticles were synthesized. Briefly, gold solution was mixed with chlorhexidine and reduced by adding sodium borohydride, resulting in an intense deep red color, indicative of colloidal gold-conjugated chlorhexidine nanoparticles. The synthesis was confirmed using UV-visible spectrophotometry that shows a plasmon resonance peak of 500 to 550 nm, indicative of gold nanoparticles. Further characterization using matrix-assisted laser desorption ionization-mass spectrometry showed a gold-conjugated chlorhexidine complex at m/z 699 ranging in size from 20 to 100 nm, as determined using atomic force microscopy. To determine the amoebicidal and amoebistatic effects, amoebae were incubated with gold-conjugated chlorhexidine nanoparticles. For controls, amoebae also were incubated with gold and silver nanoparticles alone, chlorhexidine alone, neomycin-conjugated nanoparticles, and neomycin alone. The findings showed that gold-conjugated chlorhexidine nanoparticles exhibited significant amoebicidal and amoebistatic effects at 5 μM. Amoebicidal effects were observed by parasite viability testing using a Trypan blue exclusion assay and flow-cytometric analysis using propidium iodide, while amoebistatic effects were observed using growth assays. In contrast, chlorhexidine alone, at a similar concentration, showed limited effects. Notably, neomycin alone or conjugated with nanoparticles did not show amoebicidal or amoebistatic effects. Pretreatment of A. castellanii with gold-conjugated chlorhexidine nanoparticles reduced amoeba-mediated host cell cytotoxicity from 90% to 40% at 5 μM. In contrast, chlorhexidine alone, at similar concentrations, had no protective effects for the host cells. Similarly, amoebae treated with neomycin alone or neomycin-conjugated nanoparticles showed no protective effects. Overall, these findings suggest that gold-conjugated chlorhexidine nanoparticles hold promise in the improved treatment of A. castellanii keratitis.
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Yee W, Selvaduray G, Hawkins B. Characterization of silver nanoparticle-infused tissue adhesive for ophthalmic use. J Mech Behav Biomed Mater 2015; 55:67-74. [PMID: 26562766 DOI: 10.1016/j.jmbbm.2015.10.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 10/17/2015] [Accepted: 10/20/2015] [Indexed: 12/01/2022]
Abstract
In this work, we demonstrate the successful enhancement of breaking strength, adhesive strength, and antibacterial efficacy of ophthalmic tissue adhesive (2-octyl cyanoacrylate) by doping with silver nanoparticles, and investigate the effects of nanoparticle size and concentration. Recent work has shown that silver nanoparticles are a viable antibacterial additive to many compounds, but their efficacy in tissue adhesives was heretofore untested. Our results indicate that doping the adhesive with silver nanoparticles reduced bacterial growth by an order of magnitude or more; nanoparticle size and concentration had minimal influence in the range tested. Tensile breaking strength of polymerized adhesive samples and adhesive strength between a T-shaped support and excised porcine sclera were measured using a universal testing machine according to ASTM (formerly American Society for Testing and Materials) standard techniques. Both tests showed significant improvement with the addition of silver nanoparticles. The enhanced mechanical strength and antibacterial efficacy of the doped adhesive supports the use of tissue adhesives as a viable supplement or alternative to sutures.
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Affiliation(s)
- William Yee
- Biomedical, Chemical and Materials Engineering, San José State University, one Washington Square, San Jose 95192-0082, CA, United States
| | - Guna Selvaduray
- Biomedical, Chemical and Materials Engineering, San José State University, one Washington Square, San Jose 95192-0082, CA, United States
| | - Benjamin Hawkins
- Biomedical, Chemical and Materials Engineering, San José State University, one Washington Square, San Jose 95192-0082, CA, United States.
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Mansourpour M, Mahjub R, Amini M, Ostad SN, Shamsa ES, Rafiee- Tehrani M, Dorkoosh FA. Development of acid-resistant alginate/trimethyl chitosan nanoparticles containing cationic β-cyclodextrin polymers for insulin oral delivery. AAPS PharmSciTech 2015; 16:952-62. [PMID: 25604700 DOI: 10.1208/s12249-014-0282-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 12/30/2014] [Indexed: 11/30/2022] Open
Abstract
In this study, the use of trimethylchitosan (TMC), by higher solubility in comparison with chitosan, in alginate/chitosan nanoparticles containing cationic β-cyclodextrin polymers (CPβCDs) has been studied, with the aim of increasing insulin uptake by nanoparticles. Firstly, TMCs were synthesized by iodomethane, and CPβCDs were synthesized within a one-step polycondensation reaction using choline chloride (CC) and epichlorohydrine (EP). Insulin-CβCDPs complex was prepared by mixing 1:1 portion of insulin and CPβCDs solutions. Then, nanoparticles prepared in a three-step procedure based on the iono-tropic pregelation method. Nanoparticles screened using experimental design and Placket Burman methodology to obtain minimum size and polydispercity index (pdI) and the highest entrapment efficiency (EE). CPβCDs and TMC solution concentration and pH and alginate and calcium chloride solution concentrations are found as the significant parameters on size, PdI, and EE. The nanoparticles with proper physicochemical properties were obtained; the size, PdI, and EE% of optimized nanoparticles were reported as 150.82 ± 21 nm, 0.362 ± 0.036, and 93.2% ± 4.1, respectively. The cumulative insulin release in intestinal condition achieved was 50.2% during 6 h. By SEM imaging, separate, spherical, and nonaggregated nanoparticles were found. In the cytotoxicity studies on Caco-2 cell culture, no significant cytotoxicity was observed in 5 h of incubation, but after 24 h of incubation, viability was decreased to 50% in 0.5 mμ of TMC concentration. Permeability studies across Caco-2 cells had been carried out, and permeability achieved in 240 min was 8.41 ± 0.39%, which shows noticeable increase in comparison with chitosan nanoparticles. Thus, according to the results, the optimized nanoparticles can be used as a new insulin oral delivery system.
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Distribution and Inhibition of Liposomes on Staphylococcus aureus and Pseudomonas aeruginosa Biofilm. PLoS One 2015; 10:e0131806. [PMID: 26125555 PMCID: PMC4488362 DOI: 10.1371/journal.pone.0131806] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 06/07/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Staphylococcus aureus and Pseudomonas aeruginosa are major pathogens in chronic rhinosinusitis (CRS) and their biofilms have been associated with poorer postsurgical outcomes. This study investigated the distribution and anti-biofilm effect of cationic (+) and anionic (-) phospholipid liposomes with different sizes (unilamellar and multilamellar vesicle, ULV and MLV respectively) on S. aureus and P. aeruginosa biofilms. METHOD Specific biofilm models for S. aureus ATCC 25923 and P. aeruginosa ATCC 15692 were established. Liposomal distribution was determined by observing SYTO9 stained biofilm exposed to DiI labeled liposomes using confocal scanning laser microscopy, followed by quantitative image analysis. The anti-biofilm efficacy study was carried out by using the alamarBlue assay to test the relative viability of biofilm treated with various liposomes for 24 hours and five minutes. RESULTS The smaller ULVs penetrated better than larger MLVs in both S. aureus and P. aeruginosa biofilm. Except that +ULV and -ULV displayed similar distribution in S. aureus biofilm, the cationic liposomes adhered better than their anionic counterparts. Biofilm growth was inhibited at 24-hour and five-minute exposure time, although the decrease of viability for P. aeruginosa biofilm after liposomal treatment did not reach statistical significance. CONCLUSION The distribution and anti-biofilm effects of cationic and anionic liposomes of different sizes differed in S. aureus and P. aeruginosa biofilms. Reducing the liposome size and formulating liposomes as positively charged enhanced the penetration and inhibition of S. aureus and P. aeruginosa biofilms.
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Cosco D, Paolino D, De Angelis F, Cilurzo F, Celia C, Di Marzio L, Russo D, Tsapis N, Fattal E, Fresta M. Aqueous-core PEG-coated PLA nanocapsules for an efficient entrapment of water soluble anticancer drugs and a smart therapeutic response. Eur J Pharm Biopharm 2015; 89:30-9. [DOI: 10.1016/j.ejpb.2014.11.012] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 11/12/2014] [Accepted: 11/17/2014] [Indexed: 12/18/2022]
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Kalhapure RS, Suleman N, Mocktar C, Seedat N, Govender T. Nanoengineered drug delivery systems for enhancing antibiotic therapy. J Pharm Sci 2014; 104:872-905. [PMID: 25546108 DOI: 10.1002/jps.24298] [Citation(s) in RCA: 125] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 11/07/2014] [Accepted: 11/07/2014] [Indexed: 12/12/2022]
Abstract
Formulation scientists are recognizing nanoengineered drug delivery systems as an effective strategy to overcome limitations associated with antibiotic drug therapy. Antibiotics encapsulated into nanodelivery systems will contribute to improved management of patients with various infectious diseases and to overcoming the serious global burden of antibiotic resistance. An extensive review of several antibiotic-loaded nanocarriers that have been formulated to target drugs to infectious sites, achieve controlled drug release profiles, and address formulation challenges, such as low-drug entrapment efficiencies, poor solubility and stability is presented in this paper. The physicochemical properties and the in vitro/in vivo performances of various antibiotic-loaded delivery systems, such as polymeric nanoparticles, micelles, dendrimers, liposomes, solid lipid nanoparticles, lipid-polymer hybrid nanoparticles, nanohybirds, nanofibers/scaffolds, nanosheets, nanoplexes, and nanotubes/horn/rods and nanoemulsions, are highlighted and evaluated. Future studies that will be essential to optimize formulation and commercialization of these antibiotic-loaded nanosystems are also identified. The review presented emphasizes the significant formulation progress achieved and potential that novel nanoengineered antibiotic drug delivery systems have for enhancing the treatment of patients with a range of infections.
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Affiliation(s)
- Rahul S Kalhapure
- Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal, Durban, 4000, South Africa
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Dwivedi S, Wahab R, Khan F, Mishra YK, Musarrat J, Al-Khedhairy AA. Reactive oxygen species mediated bacterial biofilm inhibition via zinc oxide nanoparticles and their statistical determination. PLoS One 2014; 9:e111289. [PMID: 25402188 PMCID: PMC4234364 DOI: 10.1371/journal.pone.0111289] [Citation(s) in RCA: 199] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 09/29/2014] [Indexed: 02/03/2023] Open
Abstract
The formation of bacterial biofilm is a major challenge in clinical applications. The main aim of this study is to describe the synthesis, characterization and biocidal potential of zinc oxide nanoparticles (NPs) against bacterial strain Pseudomonas aeruginosa. These nanoparticles were synthesized via soft chemical solution process in a very short time and their structural properties have been investigated in detail by using X-ray diffraction and transmission electron microscopy measurements. In this work, the potential of synthesized ZnO-NPs (∼10–15 nm) has been assessed in-vitro inhibition of bacteria and the formation of their biofilms was observed using the tissue culture plate assays. The crystal violet staining on biofilm formation and its optical density revealed the effect on biofilm inhibition. The NPs at a concentration of 100 µg/mL significantly inhibited the growth of bacteria and biofilm formation. The biofilm inhibition by ZnO-NPs was also confirmed via bio-transmission electron microscopy (Bio-TEM). The Bio-TEM analysis of ZnO-NPs treated bacteria confirmed the deformation and damage of cells. The bacterial growth in presence of NPs concluded the bactericidal ability of NPs in a concentration dependent manner. It has been speculated that the antibacterial activity of NPs as a surface coating material, could be a feasible approach for controlling the pathogens. Additionally, the obtained bacterial solution data is also in agreement with the results from statistical analytical methods.
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Affiliation(s)
- Sourabh Dwivedi
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Rizwan Wahab
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
- * E-mail:
| | - Farheen Khan
- Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - Yogendra K. Mishra
- Functional Nanomaterials, Institute for Materials Science, University of Kiel, Kiel, Germany
| | - Javed Musarrat
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, India
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De A, Mishra S, Mozumdar S. Stimuli‐Responsive Smart Nanoparticles for Biomedical Application. Adv Healthc Mater 2014. [DOI: 10.1002/9781118774205.ch1] [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]
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Mohammadi-Samani S, Taghipour B. PLGA micro and nanoparticles in delivery of peptides and proteins; problems and approaches. Pharm Dev Technol 2014; 20:385-93. [DOI: 10.3109/10837450.2014.882940] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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31
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Chen YP, Hsu SH. Preparation and characterization of novel water-based biodegradable polyurethane nanoparticles encapsulating superparamagnetic iron oxide and hydrophobic drugs. J Mater Chem B 2014; 2:3391-3401. [DOI: 10.1039/c4tb00069b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A green and novelin situmethod for the encapsulation of SPIO and hydrophobic drugs by PU NPs was developed, where drug release may be accelerated upon magnetic heating.
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Affiliation(s)
- Yan-Ping Chen
- Institute of Polymer Science and Engineering
- National Taiwan University
- Taipei, Republic of China
| | - Shan-hui Hsu
- Institute of Polymer Science and Engineering
- National Taiwan University
- Taipei, Republic of China
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32
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Comparative effectiveness of NiCl2, Ni- and NiO-NPs in controlling oral bacterial growth and biofilm formation on oral surfaces. Arch Oral Biol 2013; 58:1804-11. [DOI: 10.1016/j.archoralbio.2013.09.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 08/14/2013] [Accepted: 09/29/2013] [Indexed: 12/11/2022]
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33
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Khandelwal P, Singh DK, Sadhu S, Poddar P. Modulation of Reaction Kinetics for the Tuneable Synthesis of Gold Nanoparticles and Quantum Clusters: Application of Gold Quantum Clusters as “Turn-Off” Sensing Probe for Sn4+Ions. Chempluschem 2013; 79:134-142. [DOI: 10.1002/cplu.201300319] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Indexed: 11/07/2022]
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34
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Alexander-Bryant AA, Vanden Berg-Foels WS, Wen X. Bioengineering strategies for designing targeted cancer therapies. Adv Cancer Res 2013; 118:1-59. [PMID: 23768509 DOI: 10.1016/b978-0-12-407173-5.00002-9] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The goals of bioengineering strategies for targeted cancer therapies are (1) to deliver a high dose of an anticancer drug directly to a cancer tumor, (2) to enhance drug uptake by malignant cells, and (3) to minimize drug uptake by nonmalignant cells. Effective cancer-targeting therapies will require both passive- and active-targeting strategies and a thorough understanding of physiologic barriers to targeted drug delivery. Designing a targeted therapy includes the selection and optimization of a nanoparticle delivery vehicle for passive accumulation in tumors, a targeting moiety for active receptor-mediated uptake, and stimuli-responsive polymers for control of drug release. The future direction of cancer targeting is a combinatorial approach, in which targeting therapies are designed to use multiple-targeting strategies. The combinatorial approach will enable combination therapy for delivery of multiple drugs and dual ligand targeting to improve targeting specificity. Targeted cancer treatments in development and the new combinatorial approaches show promise for improving targeted anticancer drug delivery and improving treatment outcomes.
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Affiliation(s)
- Angela A Alexander-Bryant
- Department of Bioengineering, Clemson University, Clemson, South Carolina, USA.,Department of Craniofacial Biology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Wendy S Vanden Berg-Foels
- Department of Bioengineering, Clemson University, Clemson, South Carolina, USA.,Department of Craniofacial Biology, Medical University of South Carolina, Charleston, South Carolina, USA.,Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Xuejun Wen
- Department of Bioengineering, Clemson University, Clemson, South Carolina, USA.,Department of Craniofacial Biology, Medical University of South Carolina, Charleston, South Carolina, USA.,Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia, USA.,Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina, USA.,Department of Orthopedic Surgery, Medical University of South Carolina, Charleston, South Carolina, USA.,Institute for Biomedical Engineering and Nanotechnology, Tongji University School of Medicine, Shanghai, China.,Hollings Cancer Center, Medical University of South Carolina, Charleston, South Carolina, USA.,College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
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Yadav R, Kumar D, Kumari A, Yadav SK. Encapsulation of podophyllotoxin and etoposide in biodegradable poly-d,l-lactide nanoparticles improved their anticancer activity. J Microencapsul 2013; 31:211-9. [DOI: 10.3109/02652048.2013.834988] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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36
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37
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Fonseca LB, Nele M, Volpato NM, Seiceira RC, Pinto JC. Production of PMMA Nanoparticles Loaded with Praziquantel Through “In Situ” Miniemulsion Polymerization. MACROMOL REACT ENG 2012. [DOI: 10.1002/mren.201200036] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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38
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Mohamed Hamouda I. Current perspectives of nanoparticles in medical and dental biomaterials. J Biomed Res 2012; 26:143-51. [PMID: 23554743 PMCID: PMC3596063 DOI: 10.7555/jbr.26.20120027] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Revised: 04/02/2012] [Accepted: 04/25/2012] [Indexed: 11/20/2022] Open
Abstract
Nanotechnology is gaining tremendous impetus due to its capability of modulating metals into their nanosize, which drastically changes the chemical, physical and optical properties of metals. Nanoparticles have been introduced as materials with good potential to be extensively used in biological and medical applications. Nanoparticles are clusters of atoms in the size range of 1-100 nm. Inorganic nanoparticles and their nano-composites are applied as good antibacterial agents. Due to the outbreak of infectious diseases caused by different pathogenic bacteria and the development of antibiotic resistance, pharmaceutical companies and researchers are searching for new antibacterial agents. The metallic nanoparticles are the most promising as they show good antibacterial properties due to their large surface area to volume ratios, which draw growing interest from researchers due to increasing microbial resistance against metal ions, antibiotics and the development of resistant strains. Metallic nanoparticles can be used as effective growth inhibitors in various microorganisms and thereby are applicable to diverse medical devices. Nanotechnology discloses the use of elemental nanoparticles as active antibacterial ingredient for dental materials. In dentistry, both restorative materials and oral bacteria are believed to be responsible for restoration failure. Secondary caries is found to be the main reason to restoration failure. Secondary caries is primarily caused by invasion of plaque bacteria (acid-producing bacteria) such as Streptococcus mutans and lactobacilli in the presence of fermentable carbohydrates. To make long-lasting restorations, antibacterial materials should be made. The potential of nanoparticles to control the formation of biofilms within the oral cavity is also coming under increasing scrutiny. Possible uses of nanoparticles as topically applied agents within dental materials and the application of nanoparticles in the control of oral infections are also reviewed.
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Affiliation(s)
- Ibrahim Mohamed Hamouda
- Department of Dental Biomaterials and Restorative Dentistry, Faculty of Dentistry, Mansoura University, Mansoura, Dakahleya 35516, Egypt
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39
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Mahjub R, Dorkoosh FA, Amini M, Khoshayand MR, Rafiee-Tehrani M. Preparation, statistical optimization, and in vitro characterization of insulin nanoparticles composed of quaternized aromatic derivatives of chitosan. AAPS PharmSciTech 2011; 12:1407-19. [PMID: 22033812 DOI: 10.1208/s12249-011-9716-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Accepted: 10/06/2011] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was the preparation, optimization, and in vitro characterization of insulin nanoparticles composed of methylated N-(4-N,N-dimethylaminobenzyl), methylated N-(4-pyridinyl), and methylated N-(benzyl) chitosan. Three types of derivatives were synthesized by the Schiff base reaction followed by quaternization. Nanoparticles were prepared by the polyelectrolyte complexation method. Experimental design D-optimal response surface methodology was used for the optimization of the nanoparticles. Independent variables were pH of polymer solution, concentration ratio of polymer/insulin, and also polymer type. Dependent variables include size, zeta potential, polydispersity index (PdI), and entrapment efficiency (EE%). Optimized nanoparticles were studied morphologically by transmission electron microscopy (TEM), and in vitro release of insulin from nanoparticles were determined under phosphate buffer (pH = 6.8) condition. Although a quadratic model has been chosen to fit the responses for size, PdI, and EE%, the zeta potential of the particles has been best fitted to 2-FI model. The optimized nanoparticles were characterized. The size of the particles were found to be 346, 318, and 289 nm; zeta potentials were 28.5, 27.7, and 22.2 mV; PdI of particles were 0.305, 0.333, and 0.437; and calculated EE% were 70.3%, 84.5%, and 69.2%, for methylated (aminobenzyl), methylated (pyridinyl), and methylated (benzyl) chitosan nanoparticles, respectively. TEM images show separated and non-aggregated nanoparticles with sub-spherical shapes and smooth surfaces. An in vitro release study of the prepared nanoparticles showed that the cumulative percentage of insulin released from the nanoparticles were 47.1%, 38%, and 68.7% for (aminobenzyl), (pyridinyl), and (benzyl) chitosan, respectively, within 300 min.
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Lee KN, Ye Y, Carr JH, Karem K, D’Souza MJ. Formulation, pharmacokinetics and biodistribution of Ofloxacin-loaded albumin microparticles and nanoparticles. J Microencapsul 2011; 28:363-9. [DOI: 10.3109/02652048.2011.569766] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Kumari A, Yadav SK, Pakade YB, Singh B, Yadav SC. Development of biodegradable nanoparticles for delivery of quercetin. Colloids Surf B Biointerfaces 2010; 80:184-92. [PMID: 20598513 DOI: 10.1016/j.colsurfb.2010.06.002] [Citation(s) in RCA: 269] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Revised: 05/31/2010] [Accepted: 06/03/2010] [Indexed: 01/26/2023]
Abstract
The antioxidant molecule quercetin has been encapsulated on poly-D,L-lactide (PLA) nanoparticles by solvent evaporation method for the improvement of its poor aqueous solubility and stability. The surface morphology and average size of PLA and quercetin loaded PLA nanoparticles are 170+/-25 and 130+/-30 nm respectively. The antioxidant activities of the PLA encapsulated quercetin nanomedicine are identical to free quercetin. The nanoencapsulation efficiency of quercetin evaluated by HPLC and antioxidant assay is 96.7%. The in vitro release kinetics under physiological condition show initial burst release followed by slow and sustained release. The complete release and maximum retention of quercetin is 72 and 96h respectively. The less fluorescence quenching efficiency of quercetin-PLA nanoparticles than free quercetin on BSA confirms the controlled release of quercetin from PLA nanoparticles. These properties of PLA encapsulated quercetin molecule pave way for encapsulating various therapeutically less useful highly active antioxidant molecules towards the development of better therapeutic compounds.
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Affiliation(s)
- Avnesh Kumari
- Biotechnology Division, Institute of Himalayan Bioresource Technology, CSIR, Palampur 176061, HP, India
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George C, Kuriakose S, Prakashkumar B, Mathew T. Synthesis, characterisation and antibacterial applications of water-soluble, silver nanoparticle-encapsulated β-cyclodextrin. Supramol Chem 2010. [DOI: 10.1080/10610278.2010.487565] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Cincy George
- a Research and Post Graduate Department of Chemistry , St Thomas College, Mahatma Gandhi University , Pala, Kerala, 686574, India
| | - Sunny Kuriakose
- a Research and Post Graduate Department of Chemistry , St Thomas College, Mahatma Gandhi University , Pala, Kerala, 686574, India
| | - B. Prakashkumar
- a Research and Post Graduate Department of Chemistry , St Thomas College, Mahatma Gandhi University , Pala, Kerala, 686574, India
| | - Tessymol Mathew
- b Research and Post Graduate Department of Chemistry , St George's College, Mahatma Gandhi University , Aruvithura, Kerala, India
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43
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Prema P, Raju R. Fabrication and characterization of silver nanoparticle and its potential antibacterial activity. BIOTECHNOL BIOPROC E 2010. [DOI: 10.1007/s12257-008-0222-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
Nanotechnology could be defined as the technology that has allowed for the control, manipulation, study, and manufacture of structures and devices in the "nanometer" size range. These nano-sized objects, e.g., "nanoparticles", take on novel properties and functions that differ markedly from those seen from items made of identical materials. The small size, customized surface, improved solubility, and multi-functionality of nanoparticles will continue to open many doors and create new biomedical applications. Indeed, the novel properties of nanoparticles offer the ability to interact with complex cellular functions in new ways. This rapidly growing field requires cross-disciplinary research and provides opportunities to design and develop multifunctional devices that can target, diagnose, and treat devastating diseases such as cancer. This article presents an overview of nanotechnology for the biologist and discusses the attributes of our novel XPclad((c)) nanoparticle formulation that has shown efficacy in treating solid tumors, single dose vaccination, and oral delivery of therapeutic proteins.
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Affiliation(s)
- Rajesh Singh
- Department of Microbiology and Immunology, James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, KY 40202, USA
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45
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Manocha B, Margaritis A. Production and Characterization of γ-Polyglutamic Acid Nanoparticles for Controlled Anticancer Drug Release. Crit Rev Biotechnol 2008; 28:83-99. [DOI: 10.1080/07388550802107483] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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46
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Development of a nanosomal formulation of moxifloxacin based on poly(butyl-2-cyanoacrylate). Pharm Chem J 2008. [DOI: 10.1007/s11094-008-0073-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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47
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Bayat A, Dorkoosh FA, Dehpour AR, Moezi L, Larijani B, Junginger HE, Rafiee-Tehrani M. Nanoparticles of quaternized chitosan derivatives as a carrier for colon delivery of insulin: Ex vivo and in vivo studies. Int J Pharm 2008; 356:259-66. [DOI: 10.1016/j.ijpharm.2007.12.037] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2007] [Revised: 11/14/2007] [Accepted: 12/18/2007] [Indexed: 01/10/2023]
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48
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Preparation and characterization of insulin nanoparticles using chitosan and its quaternized derivatives. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2008; 4:115-20. [PMID: 18339584 DOI: 10.1016/j.nano.2008.01.003] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2007] [Revised: 01/20/2008] [Accepted: 01/31/2008] [Indexed: 11/24/2022]
Abstract
Insulin (INS), like other peptides, has low therapeutic activity when administered orally due to degradation by proteolytic enzymes. Polymeric nanoparticles have been introduced as a useful carrier for peptide oral delivery, because they can protect these compounds from degradation. The objective of the present study is to develop an INS nanoparticulate system by using chitosan (CS), triethylchitosan (TEC), and dimethyl-ethylchitosan (DMEC, a new quaternized derivative of CS). INS-polymer nanoparticles were prepared by the polyelectrolyte complexation method. The physicochemical properties of the nanoparticles including particle size distribution, zeta potential, and polydispersity index were determined by using dynamic light scattering technique. Transmission electron microscopy was also used to observe the morphology of the nanoparticles. The amount of INS loaded into the nanoparticles was determined by measuring the association efficiency and also the content of INS in the nanoparticles. In vitro release studies showed a relatively small burst effect at the beginning and then a sustained release characteristic for 5 hours.
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49
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Vauthier C, Labarre D, Ponchel G. Design aspects of poly(alkylcyanoacrylate) nanoparticles for drug delivery. J Drug Target 2008; 15:641-63. [PMID: 18041633 DOI: 10.1080/10611860701603372] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Poly(alkylcyanoacrylate) (PACA) nanoparticles were first developed 25 years ago taking advantage of the in vivo degradation potential of the polymer and of its good acceptance by living tissues. Since then, various PACA nanoparticles were designed including nanospheres, oil-containing and water-containing nanocapsules. This made possible the in vivo delivery of many types of drugs including those presenting serious challenging delivery problems. PACA nanoparticles were proven to improve treatments of severe diseases like cancer, infections and metabolic disease. For instance, they can transport drugs across barriers allowing delivery of therapeutic doses in difficult tissues to reach including in the brain or in multidrug resistant cells. This review gives an update on the more recent developments and achievements on design aspects of PACA nanoparticles as delivery systems for various drugs to be administered in vivo by different routes of administration.
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50
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Antibacterial efficacy of aminoglycosidic antibiotics protected gold nanoparticles—A brief study. Colloids Surf A Physicochem Eng Asp 2007. [DOI: 10.1016/j.colsurfa.2006.10.024] [Citation(s) in RCA: 200] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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