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Tkachenko A, Özdemir S, Tollu G, Dizge N, Ocakoglu K, Prokopiuk V, Onishchenko A, Сhumachenko V, Virych P, Pavlenko V, Kutsevol N. Antibacterial and antioxidant activity of gold and silver nanoparticles in dextran-polyacrylamide copolymers. Biometals 2024; 37:115-130. [PMID: 37651060 DOI: 10.1007/s10534-023-00532-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 08/22/2023] [Indexed: 09/01/2023]
Abstract
Search for new antimicrobial agents is of great significance due to the issue of antimicrobial resistance, which nowadays has become more important than many diseases. The aim of this study was to evaluate the toxicity and biological effects of a dextran-graft-polyacrylamide (D-PAA) polymer-nanocarrier with/without silver or gold nanoparticles (AgNPs/D-PAA and AuNPs/D-PAA, respectively) to analyze their potential to replace or supplement conventional antibiotic therapy. The toxicity of nanocomplexes against eukaryotic cells was assessed on primary dermal fibroblasts using scratch, micronucleus and proliferation assays. DPPH (2,2-diphenyl-1-picrylhydrazylradical) assay was used to evaluate the antioxidant capacity of D-PAA, AgNPs/D-PAA and AuNPs/D-PAA. DNA cleavage, antimicrobial and biofilm inhibition effects of nanocomplexes were investigated. Nanocomplexes were found to be of moderate toxicity against fibroblasts with no genotoxicity observed. AgNPs/D-PAA reduced motility and proliferation at lower concentrations compared with the other studied nanomaterials. AgNPs/D-PAA and AuNPs/D-PAA showed radical scavenging capacities in a dose-dependent manner. The antimicrobial activity of AgNPs/D-PAA against various bacteria was found to be much higher compared to D-PAA and AuNPs/D-PAA, especially against E. hirae, E. faecalis and S. aureus, respectively. D-PAA, AgNPs/D-PAA and AuNPs/D-PAA showed DNA-cleaving and biofilm inhibitory activity, while AgNPs/D-PAA displayed the highest anti-biofilm activity. AgNPs/D-PAA and AuNPs/D-PAA were characterized by good antimicrobial activity. According to the findings of the study, AgNPs/D-PAA and AuNPs/D-PAA can be evaluated as alternatives for the preparation of new antimicrobial agents, the fight against biofilms, sterilization and disinfection processes. Our findings confirm the versatility of nanosystems based on dextran-polyacrylamide polymers and indicate that AgNPs/D-PAA and AuNPs/D-PAA can be evaluated as alternatives for the preparation of novel antimicrobial agents.
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Affiliation(s)
- Anton Tkachenko
- Research Institute of Experimental and Clinical Medicine, Kharkiv National Medical University, Kharkiv, 61022, Ukraine.
| | - Sadin Özdemir
- Food Processing Programme, Technical Science Vocational School, Mersin University, 33343, Yenişehir, Mersin, Turkey
| | - Gülşah Tollu
- Laboratory and Veterinary Health, Technical Science Vocational School, Mersin University, 33343, Yenişehir, Mersin, Turkey
| | - Nadir Dizge
- Department of Environmental Engineering, Mersin University, 33343, Yenişehir, Mersin, Turkey.
| | - Kasim Ocakoglu
- Department of Eng. Fundamental Sciences, Faculty of Engineering, Tarsus University, 33400, Tarsus, Turkey
| | - Volodymyr Prokopiuk
- Research Institute of Experimental and Clinical Medicine, Kharkiv National Medical University, Kharkiv, 61022, Ukraine
- Department of Cryobiochemistry, Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, Kharkiv, 61015, Ukraine
| | - Anatolii Onishchenko
- Research Institute of Experimental and Clinical Medicine, Kharkiv National Medical University, Kharkiv, 61022, Ukraine
| | - Vasyl Сhumachenko
- Faculty of Chemistry, Taras Shevchenko University of Kyiv, Kyiv, 01601, Ukraine
| | - Pavlo Virych
- Faculty of Chemistry, Taras Shevchenko University of Kyiv, Kyiv, 01601, Ukraine
| | - Vadym Pavlenko
- Faculty of Chemistry, Taras Shevchenko University of Kyiv, Kyiv, 01601, Ukraine
| | - Nataliya Kutsevol
- Faculty of Chemistry, Taras Shevchenko University of Kyiv, Kyiv, 01601, Ukraine
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Mani A, Suriya R, Anirudhan TS. Molecularly imprinted nanoparticles doped graphene oxide based electrochemical platform for highly sensitive and selective detection of L-tyrosine. Colloids Surf B Biointerfaces 2023; 231:113580. [PMID: 37832174 DOI: 10.1016/j.colsurfb.2023.113580] [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: 07/12/2023] [Revised: 09/23/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023]
Abstract
A highly sensitive and selective electrochemical sensor was developed using a surface modified glassy carbon electrode (GCE) through molecularly imprinted polymerization on the surface of vinyltrimethoxysilane (VTMS) coated magnetic nanoparticle (Fe3O4) decorated silver nanoparticles incorporated graphene oxide, GO (VTMS-Fe3O4/AgGO) for L- Tyrosine (Tyr) detection. A molecular imprinting technique based on free radical polymerization was applied to synthesize molecularly imprinted Methacrylic acid (MAA) and Acrylamide (AA) grafted VTMS-Fe3O4/AgGO polymer (MAA/AA-g- VTMS-Fe3O4/AgGO) designated as MIP and non-imprinted polymer (NIP). The structure and morphology of the prepared polymers were FTIR, XRD, FE-SEM and VSM. MIP and NIP were chosen for modifying the GCE surface by drop casting process to construct the sensors and their electrochemical properties were characterized via EIS and CV. Compared with NIP/GCE sensor, MIP /GCE sensor exhibits excellent sensing response towards Tyr with a wide linear range of 0.25 × 10-13 M to 0.10 × 10-3 M and the limit of detection and limit of quantification as 0.15 × 10-13 M and 0.50 × 10-13 M, respectively with R2 value of 0.9934 by DPV technique. Moreover, MIP/GCE sensor exhibits long-time storage, excellent selectivity and good stability in multiple cycle usage. The practical applicability of MIP/GCE sensor was tested in human blood serum sample. The recovery percentage was obtained between 98.8% and 106.0% with a relative standard deviation (RSD) between 1.01% and 1.59%. Results of the investigations revealed the clinical applicability of the MIP/GCE sensor.
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Affiliation(s)
- Athira Mani
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Kariavattom, Trivandrum 695 581, Kerala, India
| | - R Suriya
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Kariavattom, Trivandrum 695 581, Kerala, India
| | - T S Anirudhan
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Kariavattom, Trivandrum 695 581, Kerala, India.
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Tabasum H, Bhat BA, Sheikh BA, Mehta VN, Rohit JV. Emerging perspectives of plant-derived nanoparticles as effective antimicrobial agents. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Qin J, Zhao J, Wu Y, Li L, Li D, Deng H, Liu J, Zhang L. Chitosan/collagen layer-by-layer deposition for improving the esophageal regeneration ability of nanofibrous mats. Carbohydr Polym 2022; 286:119269. [DOI: 10.1016/j.carbpol.2022.119269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 02/06/2022] [Accepted: 02/16/2022] [Indexed: 11/02/2022]
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Nguyen TT, Dung Nguyen TT, Vo TK, Tran NMA, Nguyen MK, Van Vo T, Van Vo G. Nanotechnology-based drug delivery for central nervous system disorders. Biomed Pharmacother 2021; 143:112117. [PMID: 34479020 DOI: 10.1016/j.biopha.2021.112117] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/12/2021] [Accepted: 08/24/2021] [Indexed: 02/06/2023] Open
Abstract
Drug delivery to central nervous system (CNS) diseases is very challenging since the presence of the innate blood-brain barrier (BBB) and the blood-cerebrospinal fluid barrier that impede drug delivery. Among new strategies to overcome these limitations and successfully deliver drugs to the CNS, nanotechnology-based drug delivery platform, offers potential therapeutic approach for the treatment of some common neurological disorders like Alzheimer's disease, frontotemporal dementia, amyotrophic lateral sclerosis, Parkinson's disease, Huntington's disease. This review aimed to highlight advances in research on the development of nano-based therapeutics for their implications in therapy of CNS disorders. The challenges during clinical translation of nanomedicine from bench to bed side is also discussed.
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Affiliation(s)
- Thuy Trang Nguyen
- Faculty of Pharmacy, Ho Chi Minh City University of Technology (HUTECH), Ho Chi Minh City 700000, Viet Nam
| | - Thi Thuy Dung Nguyen
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Viet Nam
| | - Tuong Kha Vo
- Viet Nam Sports Hospital, Ministry of Culture, Sports and Tourism, Hanoi 100000, Viet Nam
| | - Nguyen-Minh-An Tran
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City 71420, Viet Nam
| | - Minh Kim Nguyen
- Department of Chemical Engineering-Environment, The University of Danang, University of Technology and Education, 48 Cao Thang St., Hai Chau Dist., Danang City 550000, Viet Nam
| | - Toi Van Vo
- School of Biomedical Engineering, International University, Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City 700000, Viet Nam; Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City 700000, Viet Nam.
| | - Giau Van Vo
- Department of Biomedical Engineering, School of Medicine, Vietnam National University -Ho Chi Minh City (VNU-HCM), Ho Chi Minh City 700000, Viet Nam; Research Center for Genetics and Reproductive Health, School of Medicine, Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City 700000, Viet Nam; Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City 700000, Viet Nam.
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Advances in developing therapeutic strategies for Alzheimer's disease. Biomed Pharmacother 2021; 139:111623. [DOI: 10.1016/j.biopha.2021.111623] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/29/2021] [Accepted: 04/12/2021] [Indexed: 12/11/2022] Open
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Karimadom BR, Kornweitz H. Mechanism of Producing Metallic Nanoparticles, with an Emphasis on Silver and Gold Nanoparticles, Using Bottom-Up Methods. Molecules 2021; 26:2968. [PMID: 34067624 PMCID: PMC8156005 DOI: 10.3390/molecules26102968] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/09/2021] [Accepted: 05/14/2021] [Indexed: 11/16/2022] Open
Abstract
Bottom-up nanoparticle (NP) formation is assumed to begin with the reduction of the precursor metallic ions to form zero-valent atoms. Studies in which this assumption was made are reviewed. The standard reduction potential for the formation of aqueous metallic atoms-E0(Mn+aq/M0aq)-is significantly lower than the usual standard reduction potential for reducing metallic ions Mn+ in aqueous solution to a metal in solid state. E0(Mn+aq/M0solid). E0(Mn+aq/M0aq) values are negative for many typical metals, including Ag and Au, for which E0(Mn+aq/M0solid) is positive. Therefore, many common moderate reduction agents that do not have significantly high negative reduction standard potentials (e.g., hydrogen, carbon monoxide, citrate, hydroxylamine, formaldehyde, ascorbate, squartic acid, and BH4-), and cannot reduce the metallic cations to zero-valent atoms, indicating that the mechanism of NP production should be reconsidered. Both AgNP and AuNP formations were found to be multi-step processes that begin with the formation of clusters constructed from a skeleton of M+-M+ (M = Ag or Au) bonds that is followed by the reduction of a cation M+ in the cluster to M0, to form Mn0 via the formation of NPs. The plausibility of M+-M+ formation is reviewed. Studies that suggest a revised mechanism for the formation of AgNPs and AuNPs are also reviewed.
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Affiliation(s)
| | - Haya Kornweitz
- Chemical Sciences Department, Ariel University, Ariel 4077625, Israel;
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Tonami H, Nishiuchi H. Protein immobilization on polyvinylphenol via tyrosine oxidation of proteins catalyzed by horseradish peroxidase. J Appl Polym Sci 2021. [DOI: 10.1002/app.50475] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hiroyuki Tonami
- Department of Biomedical Engineering Osaka Institute of Technology Osaka Japan
| | - Hitachi Nishiuchi
- Department of Biomedical Engineering Osaka Institute of Technology Osaka Japan
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Nguyen TT, Vo TK, Vo GV. Therapeutic Strategies and Nano-Drug Delivery Applications in Management of Aging Alzheimer's Disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1286:183-198. [PMID: 33725354 DOI: 10.1007/978-3-030-55035-6_13] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder in which the death of brain cells causes memory loss and cognitive decline. Existing drugs only suppress symptoms or delay further deterioration but do not address the cause of the disease. In spite of screening numerous drug candidates against various molecular targets of AD, only a few candidates, such as acetylcholinesterase inhibitors, are currently utilized as an effective clinical therapy. Currently, nano-based therapies can make a difference, providing new therapeutic options by helping drugs to cross the blood-brain barrier and enter the brain more effectively. The main aim of this review was to highlight advances in research on the development of nano-based therapeutics for improved treatment of AD.
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Affiliation(s)
- Thuy Trang Nguyen
- Faculty of Pharmacy, Ho Chi Minh City University of Technology (HUTECH), Ho Chi Minh City, Vietnam
| | - Tuong Kha Vo
- Vietnam Sports Hospital, Ministry of Culture, Sports and Tourism, Hanoi, Vietnam
| | - Giau Van Vo
- Department of Industrial and Environmental Engineering, Gachon University, Seongnam-si, South Korea. .,Department of Bionano Technology, Gachon University, Seongnam-si, South Korea. .,School of Medicine, Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam.
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Metwally S, Stachewicz U. Surface potential and charges impact on cell responses on biomaterials interfaces for medical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109883. [DOI: 10.1016/j.msec.2019.109883] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 05/02/2019] [Accepted: 06/11/2019] [Indexed: 12/12/2022]
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Delaney LJ, MacDonald D, Leung J, Fitzgerald K, Sevit AM, Eisenbrey JR, Patel N, Forsberg F, Kepler CK, Fang T, Kurtz SM, Hickok NJ. Ultrasound-triggered antibiotic release from PEEK clips to prevent spinal fusion infection: Initial evaluations. Acta Biomater 2019; 93:12-24. [PMID: 30826477 PMCID: PMC6764442 DOI: 10.1016/j.actbio.2019.02.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 02/21/2019] [Accepted: 02/26/2019] [Indexed: 01/01/2023]
Abstract
Despite aggressive peri-operative antibiotic treatments, up to 10% of patients undergoing instrumented spinal surgery develop an infection. Like most implant-associated infections, spinal infections persist through colonization and biofilm formation on spinal instrumentation, which can include metal screws and rods for fixation and an intervertebral cage commonly comprised of polyether ether ketone (PEEK). We have designed a PEEK antibiotic reservoir that would clip to the metal fixation rod and that would achieve slow antibiotic release over several days, followed by a bolus release of antibiotics triggered by ultrasound (US) rupture of a reservoir membrane. We have found using human physiological fluid (synovial fluid), that higher levels (100–500 μg) of vancomycin are required to achieve a marked reduction in adherent bacteria vs. that seen in the common bacterial medium, trypticase soy broth. To achieve these levels of release, we applied a polylactic acid coating to a porous PEEK puck, which exhibited both slow and US-triggered release. This design was further refined to a one-hole or two-hole cylindrical PEEK reservoir that can clip onto a spinal rod for clinical use. Short-term release of high levels of antibiotic (340 ± 168 μg), followed by US-triggered release was measured (7420 ± 2992 μg at 48 h). These levels are sufficient to prevent adhesion of Staphylococcus aureus to implant materials. This study demonstrates the feasibility of an US-mediated antibiotic delivery device, which could be a potent weapon against spinal surgical site infection.
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Affiliation(s)
- Lauren J Delaney
- Department of Radiology, Thomas Jefferson University, 132 S. 10th Street, Philadelphia, PA 19107, USA
| | - Daniel MacDonald
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA
| | - Jay Leung
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA
| | - Keith Fitzgerald
- Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street, Philadelphia, PA 19107, USA
| | - Alex M Sevit
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, 132 S. 10th Street, Philadelphia, PA 19107, USA
| | - Neil Patel
- Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street, Philadelphia, PA 19107, USA
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University, 132 S. 10th Street, Philadelphia, PA 19107, USA
| | - Christopher K Kepler
- Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street, Philadelphia, PA 19107, USA; The Rothman Institute, Thomas Jefferson University, 925 Chestnut Street, Philadelphia, PA 19107, USA
| | - Taolin Fang
- Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street, Philadelphia, PA 19107, USA; The Rothman Institute, Thomas Jefferson University, 925 Chestnut Street, Philadelphia, PA 19107, USA
| | - Steven M Kurtz
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA; Exponent, Inc., 3440 Market Street Suite 600, Philadelphia, PA 19104, USA
| | - Noreen J Hickok
- Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street, Philadelphia, PA 19107, USA.
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Reznickova A, Slavikova N, Kolska Z, Kolarova K, Belinova T, Hubalek Kalbacova M, Cieslar M, Svorcik V. PEGylated gold nanoparticles: Stability, cytotoxicity and antibacterial activity. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.09.083] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Van Giau V, An SSA, Hulme JP. Mitochondrial therapeutic interventions in Alzheimer's disease. J Neurol Sci 2018; 395:62-70. [PMID: 30292965 DOI: 10.1016/j.jns.2018.09.033] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/09/2018] [Accepted: 09/26/2018] [Indexed: 01/26/2023]
Abstract
Alzheimer's Disease (AD) is one of the most common age-related neurodegenerative diseases in the developed world. Treatment of AD is particularly challenging as the drug must overcome the blood brain barrier (BBB) before it can reach its target. Mitochondria are recognized as one of the most important targets for neurological drugs as the organelle is known to play a critical role in diverse cellular processes such as energy production and apoptosis regulation. Mitochondrial targeting was originally developed to study mitochondrial dysfunction and the organelles interaction with other sub-cellular organelles. The purpose of this review is to provide an overview of mitochondrial dysfunction and its role in late onset AD pathology. We then highlight recent antioxidant and enzymatic treatments used to alleviate mitochondrial dysfunction. Finally, we describe current applications of targeted mitochondrial delivery in the treatment of AD.
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Affiliation(s)
- Vo Van Giau
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Sungnam-daero, Seongnam-si, Gyeonggi-do 461-701, South Korea
| | - Seong Soo A An
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Sungnam-daero, Seongnam-si, Gyeonggi-do 461-701, South Korea.
| | - John P Hulme
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Sungnam-daero, Seongnam-si, Gyeonggi-do 461-701, South Korea.
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Recent progress in nanocomposites based on conducting polymer: application as electrochemical sensors. INTERNATIONAL NANO LETTERS 2018. [DOI: 10.1007/s40089-018-0238-2] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Slepička P, Přibyl M, Fajstavr D, Ulbrich P, Siegel J, Řezníčková A, Švorčík V. Grafting of platinum nanostructures on biopolymer at elevated temperature. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Vannozzi L, Iacovacci V, Menciassi A, Ricotti L. Nanocomposite thin films for triggerable drug delivery. Expert Opin Drug Deliv 2018. [PMID: 29521583 DOI: 10.1080/17425247.2018.1451512] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
INTRODUCTION Traditional drug release systems normally rely on a passive delivery of therapeutic compounds, which can be partially programmed, prior to injection or implantation, through variations in the material composition. With this strategy, the drug release kinetics cannot be remotely modified and thus adapted to changing therapeutic needs. To overcome this issue, drug delivery systems able to respond to external stimuli are highly desirable, as they allow a high level of temporal and spatial control over drug release kinetics, in an operator-dependent fashion. AREAS COVERED On-demand drug delivery systems actually represent a frontier in this field and are attracting an increasing interest at both research and industrial level. Stimuli-responsive thin films, enabled by nanofillers, hold a tremendous potential in the field of triggerable drug delivery systems. The inclusion of responsive elements in homogeneous or heterogeneous thin film-shaped polymeric matrices strengthens and/or adds intriguing properties to conventional (bare) materials in film shape. EXPERT OPINION This Expert Opinion review aims to discuss the approaches currently pursued to achieve an effective on-demand drug delivery, through nanocomposite thin films. Different triggering mechanisms allowing a fine control on drug delivery are described, together with current challenges and possible future applications in therapy and surgery.
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Affiliation(s)
- Lorenzo Vannozzi
- a The BioRobotics Institute , Scuola Superiore Sant'Anna , Pontedera , Italy
| | - Veronica Iacovacci
- a The BioRobotics Institute , Scuola Superiore Sant'Anna , Pontedera , Italy
| | - Arianna Menciassi
- a The BioRobotics Institute , Scuola Superiore Sant'Anna , Pontedera , Italy
| | - Leonardo Ricotti
- a The BioRobotics Institute , Scuola Superiore Sant'Anna , Pontedera , Italy
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Bokhari H. Exploitation of microbial forensics and nanotechnology for the monitoring of emerging pathogens. Crit Rev Microbiol 2018. [PMID: 29513060 DOI: 10.1080/1040841x.2018.1444013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Emerging infectious diseases remain among the leading causes of global mortality. Traditional laboratory diagnostic approaches designed to detect and track infectious disease agents provide a framework for surveillance of bio threats. However, surveillance and outbreak investigations using such time-consuming approaches for early detection of pathogens remain the major pitfall. Hence, reasonable real-time surveillance systems to anticipate threats to public health and environment are critical for identifying specific aetiologies and preventing the global spread of infectious disease. The current review discusses the growing need for monitoring and surveillance of pathogens with the same zeal and approach as adopted by microbial forensics laboratories, and further strengthening it by integrating with the innovative nanotechnology for rapid detection of microbial pathogens. Such innovative diagnostics platforms will help to track pathogens from high risk areas and environment by pre-emptive approach that will minimize damages. The various scenarios with the examples are discussed where the high risk associated human pathogens in particular were successfully detected using various nanotechnology approaches with potential future prospects in the field of microbial forensics.
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Affiliation(s)
- Habib Bokhari
- a Microbiology & Public Health Lab, Department of Biosciences , COMSATS Institute of Information Technology , Islamabad , Pakistan
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Silver and gold in the Protein Data Bank. J Inorg Biochem 2017; 175:244-247. [DOI: 10.1016/j.jinorgbio.2017.07.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 07/26/2017] [Indexed: 01/15/2023]
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Pezzini I, Mattoli V, Ciofani G. Mitochondria and neurodegenerative diseases: the promising role of nanotechnology in targeted drug delivery. Expert Opin Drug Deliv 2016; 14:513-523. [PMID: 27467010 DOI: 10.1080/17425247.2016.1218461] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
INTRODUCTION Neurodegenerative diseases (NDs) represent a group of different clinical entities that, despite the specific primary etiologies, share a common signature in terms of a general mitochondrial dysfunction with consequent oxidative stress accumulation. As these two events occur early during neurodegenerative process, they could be considered ideal therapeutic targets. Areas covered: This review describes the nanotechnologies explored for the specific targeted delivery of drugs, in order to precisely direct molecules into the intended site, where they can practice their therapeutic effects. Expert opinion: Conventional drug delivery systems cannot provide adequate restoration and connection patterns that are essential for a functional recovery in NDs. Since orally delivered antioxidants are easily destroyed by acids and enzymes, only a small portion of consumed antioxidants gets absorbed, leading to low bioavailability and low concentration at the target site. In this scenario, the identification of new proenergetic drugs, in combination with the development of methods for selectively delivering biologically active molecules into mitochondria, will potentially launch new therapeutic approaches for the treatment of NDs, where energetic imbalance plays a central role.
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Affiliation(s)
- Ilaria Pezzini
- a The BioRobotics Institute , Scuola Superiore Sant'Anna , Pisa , Italy.,b Istituto Italiano di Tecnologia , Center for Micro-BioRobotics @SSSA , Pisa , Italy
| | - Virgilio Mattoli
- b Istituto Italiano di Tecnologia , Center for Micro-BioRobotics @SSSA , Pisa , Italy
| | - Gianni Ciofani
- b Istituto Italiano di Tecnologia , Center for Micro-BioRobotics @SSSA , Pisa , Italy.,c Department of Mechanical and Aerospace Engineering , Politecnico di Torino , Torino , Italy
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Dahoumane SA, Wujcik EK, Jeffryes C. Noble metal, oxide and chalcogenide-based nanomaterials from scalable phototrophic culture systems. Enzyme Microb Technol 2016; 95:13-27. [PMID: 27866608 DOI: 10.1016/j.enzmictec.2016.06.008] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 05/10/2016] [Accepted: 06/12/2016] [Indexed: 12/21/2022]
Abstract
Phototrophic cell or tissue cultures can produce nanostructured noble metals, oxides and chalcogenides at ambient temperatures and pressures in an aqueous environment and without the need for potentially toxic solvents or the generation of dangerous waste products. These "green" synthesized nanobiomaterials can be used to fabricate biosensors and bio-reporting tools, theranostic vehicles, medical imaging agents, as well as tissue engineering scaffolds and biomaterials. While successful at the lab and experimental scales, significant barriers still inhibit the development of higher capacity processes. While scalability issues in traditional algal bioprocess engineering are well known, such as the controlled delivery of photons and gas-exchange, the large-scale algal synthesis of nanomaterials introduces additional parameters to be understood, i.e., nanoparticle (NP) formation kinetics and mechanisms, biological transport of metal cations and the effect of environmental conditions on the final form of the NPs. Only after a clear understanding of the kinetics and mechanisms can the strain selection, photobioreactor type, medium pH and ionic strength, mean light intensity and other relevant parameters be specified for an optimal bioprocess. To this end, this mini-review will examine the current best practices and understanding of these phenomena to establish a path forward for this technology.
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Affiliation(s)
- Si Amar Dahoumane
- School of Life Science and Biotechnology, Yachay Tech University, San Miguel de Urcuquí, Ecuador
| | - Evan K Wujcik
- Materials Engineering and Nanosensor (MEAN) Laboratory, Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX, USA
| | - Clayton Jeffryes
- Nanobiomaterials and Bioprocessing (NAB) Laboratory, Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX, USA.
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Ciuca S, Badea M, Pozna E, Pana I, Kiss A, Floroian L, Semenescu A, Cotrut C, Moga M, Vladescu A. Evaluation of Ag containing hydroxyapatite coatings to the Candida albicans infection. J Microbiol Methods 2016; 125:12-8. [DOI: 10.1016/j.mimet.2016.03.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 03/18/2016] [Accepted: 03/21/2016] [Indexed: 10/22/2022]
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