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Ali R, Almousa R, Aly SM, Saleh SM. Nanoscale potassium sensing based on valinomycin-anchored fluorescent gold nanoclusters. Mikrochim Acta 2024; 191:299. [PMID: 38709371 DOI: 10.1007/s00604-024-06392-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 04/28/2024] [Indexed: 05/07/2024]
Abstract
Gold nanoclusters are a smart platform for sensing potassium ions (K+). They have been synthesized using bovine serum albumin (BSA) and valinomycin (Val) to protect and cap the nanoclusters. The nanoclusters (Val-AuNCs) produced have a red emission at 616 nm under excitation with 470 nm. In the presence of K+, the valinomycin polar groups switch to the molecule's interior by complexing with K+, forming a bracelet structure, and being surrounded by the hydrophobic exterior conformation. This structure allows a proposed fluorometric method for detecting K+ by switching between the Val-AuNCs' hydrophilicity and hydrophobicity, which induces the aggregation of gold nanoclusters. As a result, significant quenching is seen in fluorescence after adding K+. The quenching in fluorescence in the presence of K+ is attributed to the aggregation mechanism. This sensing technique provides a highly precise and selective sensing method for K+ in the range 0.78 to 8 µM with LOD equal to 233 nM. The selectivity of Val-AuNCs toward K+ ions was investigated compared to other ions. Furthermore, the Val-AuNCs have novel possibilities as favorable sensor candidates for various imaging applications. Our detection technique was validated by determining K+ ions in postmortem vitreous humor samples, which yielded promising results.
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Affiliation(s)
- Reham Ali
- Department of Chemistry, College of Science, Qassim University, 52571, Buraidah, Saudi Arabia.
- Chemistry Department, Faculty of Science, Suez University, Suez, 43518, Egypt.
| | - Reem Almousa
- Department of Chemistry, College of Science, Qassim University, 52571, Buraidah, Saudi Arabia
| | - Sanaa M Aly
- Department of Forensic Medicine & Clinical Toxicology, Faculty of Medicine, Suez Canal University, Ismailia, 41522, Egypt
| | - Sayed M Saleh
- Department of Chemistry, College of Science, Qassim University, 52571, Buraidah, Saudi Arabia
- Department of Petroleum Refining and Petrochemical Engineering Department, Faculty of Petroleum and Mining Engineering, Suez University, Suez, 43721, Egypt
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2
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Evstigneeva SS, Chumakov DS, Tumskiy RS, Khlebtsov BN, Khlebtsov NG. Detection and imaging of bacterial biofilms with glutathione-stabilized gold nanoclusters. Talanta 2023; 264:124773. [PMID: 37320983 DOI: 10.1016/j.talanta.2023.124773] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/25/2023] [Accepted: 06/05/2023] [Indexed: 06/17/2023]
Abstract
Bacterial biofilms colonize chronic wounds and surfaces of medical devices, thus making the development of reliable methods for imaging and detection of biofilms crucial. Although fluorescent identification of bacteria is sensitive and non-destructive, the lack of biofilm-specific fluorescent dyes limits the application of this technique to biofilm detection. Here, we demonstrate, for the first time, that fluorescent glutathione-stabilized gold nanoclusters (GSH-AuNCs) without targeting ligands can specifically interact with extracellular matrix components of Gram-negative and Gram-positive bacterial biofilms resulting in fluorescent staining of bacterial biofilms. By contrast, fluorescent bovine serum albumin-stabilized gold nanoclusters and 11-mercaptoundecanoic acid - stabilized gold nanoclusters do not stain the extracellular matrix of biofilms. According to molecular docking studies, GSH-AuNCs show affinity to several targets in extracellular matrix, including amyloid-anchoring proteins, matrix proteins and polysaccharides. Some experimental evidence was obtained for the interaction of GSH-AuNCs with the lipopolysaccharide (LPS) that was isolated from the matrix of Azospirillum baldaniorum biofilms. Based on GSH-AuNCs properties, we propose a new fluorescent method for the measurement of biofilm biomass with a limit of detection 1.7 × 105 CFU/mL. The sensitivity of the method is 10-fold higher than the standard biofilm quantification with the crystal violet assay. There is a good linear relationship between the fluorescence intensity from the biofilms and the number of CFU from the biofilms in the range from 2.6 × 105 to 6.7 × 107 CFU/mL. The developed nanocluster-mediated method of biofilm staining was successfully applied for quantitative detection of biofilm formation on urinary catheter surface. The presented data suggest that fluorescent GSH-AuNCs can be used to diagnose medical device-associated infections.
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Affiliation(s)
- S S Evstigneeva
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 13 Prospekt Entuziastov, Saratov, 410049, Russia.
| | - D S Chumakov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 13 Prospekt Entuziastov, Saratov, 410049, Russia
| | - R S Tumskiy
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 13 Prospekt Entuziastov, Saratov, 410049, Russia
| | - B N Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 13 Prospekt Entuziastov, Saratov, 410049, Russia; Institute of Physics, Saratov State University, 410012, Saratov, Russia
| | - N G Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 13 Prospekt Entuziastov, Saratov, 410049, Russia; Institute of Physics, Saratov State University, 410012, Saratov, Russia
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3
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Zhang Y, Yan H, Su R, Li P, Wen F, Lv Y, Cai J, Su W. Photoactivated multifunctional nanoplatform based on lysozyme-Au nanoclusters-curcumin conjugates with FRET effect and multiamplified antimicrobial activity. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Thomas-Moore BA, Del Valle CA, Field RA, Marín MJ. Recent advances in nanoparticle-based targeting tactics for antibacterial photodynamic therapy. Photochem Photobiol Sci 2022; 21:1111-1131. [PMID: 35384638 PMCID: PMC9287206 DOI: 10.1007/s43630-022-00194-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 02/23/2022] [Indexed: 12/21/2022]
Abstract
Abstract The rise of antibacterial drug resistance means treatment options are becoming increasingly limited. We must find ways to tackle these hard-to-treat drug-resistant and biofilm infections. With the lack of new antibacterial drugs (such as antibiotics) reaching the clinics, research has switched focus to exploring alternative strategies. One such strategy is antibacterial photodynamic therapy (aPDT), a system that relies on light, oxygen, and a non-toxic dye (photosensitiser) to generate cytotoxic reactive oxygen species. This technique has already been shown capable of handling both drug-resistant and biofilm infections but has limited clinical approval to date, which is in part due to the low bioavailability and selectivity of hydrophobic photosensitisers. Nanotechnology-based techniques have the potential to address the limitations of current aPDT, as already well-documented in anti-cancer PDT. Here, we review recent advances in nanoparticle-based targeting tactics for aPDT. Graphical Abstract ![]()
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Affiliation(s)
- Brydie A Thomas-Moore
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
- Norwich Research Park Innovation Centre, Iceni Glycoscience Ltd, Colney Lane, Norwich, NR4 7GJ, UK.
| | - Carla Arnau Del Valle
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Robert A Field
- Norwich Research Park Innovation Centre, Iceni Glycoscience Ltd, Colney Lane, Norwich, NR4 7GJ, UK
- Department of Chemistry and Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK
| | - María J Marín
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
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Tuchin VV, Genina EA, Tuchina ES, Svetlakova AV, Svenskaya YI. Optical clearing of tissues: Issues of antimicrobial phototherapy and drug delivery. Adv Drug Deliv Rev 2022; 180:114037. [PMID: 34752842 DOI: 10.1016/j.addr.2021.114037] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/23/2021] [Accepted: 10/28/2021] [Indexed: 02/08/2023]
Abstract
This review presents principles and novelties in the field of tissue optical clearing (TOC) technology, as well as application for optical monitoring of drug delivery and effective antimicrobial phototherapy. TOC is based on altering the optical properties of tissue through the introduction of immersion optical cleaning agents (OCA), which impregnate the tissue of interest. We also analyze various methods and kinetics of delivery of photodynamic agents, nanoantibiotics and their mixtures with OCAs into the tissue depth in the context of antimicrobial and antifungal phototherapy. In vitro and in vivo studies of antimicrobial phototherapies, such as photodynamic, photothermal plasmonic and photocatalytic, are summarized, and the prospects of a new TOC technology for effective killing of pathogens are discussed.
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Hosseini S, Wetzel O, Kostka K, Heggen M, Loza K, Epple M. Pathways for Oral and Rectal Delivery of Gold Nanoparticles (1.7 nm) and Gold Nanoclusters into the Colon: Enteric-Coated Capsules and Suppositories. Molecules 2021; 26:5069. [PMID: 34443657 PMCID: PMC8401122 DOI: 10.3390/molecules26165069] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/09/2021] [Accepted: 08/19/2021] [Indexed: 12/26/2022] Open
Abstract
Two ways to deliver ultrasmall gold nanoparticles and gold-bovine serum albumin (BSA) nanoclusters to the colon were developed. First, oral administration is possible by incorporation into gelatin capsules that were coated with an enteric polymer. These permit the transfer across the stomach whose acidic environment damages many drugs. The enteric coating dissolves due to the neutral pH of the colon and releases the capsule's cargo. Second, rectal administration is possible by incorporation into hard-fat suppositories that melt in the colon and then release the nanocarriers. The feasibility of the two concepts was demonstrated by in-vitro release studies and cell culture studies that showed the easy redispersibility after dissolution of the respective transport system. This clears a pathway for therapeutic applications of drug-loaded nanoparticles to address colon diseases, such as chronic inflammation and cancer.
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Affiliation(s)
- Shabnam Hosseini
- Inorganic Chemistry and Centre for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Universitaetsstr. 5-7, 45117 Essen, Germany; (S.H.); (O.W.); (K.K.); (K.L.)
| | - Oliver Wetzel
- Inorganic Chemistry and Centre for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Universitaetsstr. 5-7, 45117 Essen, Germany; (S.H.); (O.W.); (K.K.); (K.L.)
| | - Kathrin Kostka
- Inorganic Chemistry and Centre for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Universitaetsstr. 5-7, 45117 Essen, Germany; (S.H.); (O.W.); (K.K.); (K.L.)
| | - Marc Heggen
- Ernst Ruska Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, 52428 Jülich, Germany;
| | - Kateryna Loza
- Inorganic Chemistry and Centre for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Universitaetsstr. 5-7, 45117 Essen, Germany; (S.H.); (O.W.); (K.K.); (K.L.)
| | - Matthias Epple
- Inorganic Chemistry and Centre for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Universitaetsstr. 5-7, 45117 Essen, Germany; (S.H.); (O.W.); (K.K.); (K.L.)
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7
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Gao P, Chang X, Zhang D, Cai Y, Chen G, Wang H, Wang T. Synergistic integration of metal nanoclusters and biomolecules as hybrid systems for therapeutic applications. Acta Pharm Sin B 2021; 11:1175-1199. [PMID: 34094827 PMCID: PMC8144895 DOI: 10.1016/j.apsb.2020.12.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 10/02/2020] [Accepted: 10/13/2020] [Indexed: 12/14/2022] Open
Abstract
Therapeutic nanoparticles are designed to enhance efficacy, real-time monitoring, targeting accuracy, biocompatibility, biodegradability, safety, and the synergy of diagnosis and treatment of diseases by leveraging the unique physicochemical and biological properties of well-developed bio-nanomaterials. Recently, bio-inspired metal nanoclusters (NCs) consisting of several to roughly dozens of atoms (<2 nm) have attracted increasing research interest, owing to their ultrafine size, tunable fluorescent capability, good biocompatibility, variable metallic composition, and extensive surface bio-functionalization. Hybrid core-shell nanostructures that effectively incorporate unique fluorescent inorganic moieties with various biomolecules, such as proteins (enzymes, antigens, and antibodies), DNA, and specific cells, create fluorescently visualized molecular nanoparticle. The resultant nanoparticles possess combinatorial properties and synergistic efficacy, such as simplicity, active bio-responsiveness, improved applicability, and low cost, for combination therapy, such as accurate targeting, bioimaging, and enhanced therapeutic and biocatalytic effects. In contrast to larger nanoparticles, bio-inspired metal NCs allow rapid renal clearance and better pharmacokinetics in biological systems. Notably, advances in nanoscience, interfacial chemistry, and biotechnologies have further spurred researchers to explore bio-inspired metal NCs for therapeutic purposes. The current review presents a comprehensive and timely overview of various metal NCs for various therapeutic applications, with a special emphasis on the design rationale behind the use of biomolecules/cells as the main scaffolds. In the different hybrid platform, we summarize the current challenges and emerging perspectives, which are expected to offer in-depth insight into the rational design of bio-inspired metal NCs for personalized treatment and clinical translation.
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Affiliation(s)
- Peng Gao
- Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, Shenzhen University, Shenzhen 518060, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Xin Chang
- Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes, College of Life Sciences, Anhui Normal University, Wuhu 241000, China
| | - Dagan Zhang
- Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, Shenzhen University, Shenzhen 518060, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Yafei Cai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Gen Chen
- School of Materials Science and Engineering, Central South University, Changsha 410083, China
| | - Hao Wang
- College of Energy, Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215006, China
| | - Tianfu Wang
- Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, Shenzhen University, Shenzhen 518060, China
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9
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Tang M, Zhang J, Yang C, Zheng Y, Jiang H. Gold Nanoclusters for Bacterial Detection and Infection Therapy. Front Chem 2020; 8:181. [PMID: 32266210 PMCID: PMC7105725 DOI: 10.3389/fchem.2020.00181] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 02/26/2020] [Indexed: 12/31/2022] Open
Abstract
Infections caused by antibiotic-resistant bacteria have become one of the most serious global public health crises. Early detection and effective treatment can effectively prevent deterioration and further spreading of the bacterial infections. Therefore, there is an urgent need for time-saving diagnosis as well as therapeutically potent therapy approaches. Development of nanomedicine has provided more choices for detection and therapy of bacterial infections. Ultrasmall gold nanoclusters (Au NCs) are emerging as potential antibacterial agents and have drawn intense attention in the biomedical fields owing to their excellent biocompatibility and unusual physicochemical properties. Recent significant efforts have shown that these versatile Au NCs also have great application potential in the selective detection of bacteria and infection treatment. In this review, we will provide an overview of research progress on the development of versatile Au NCs for bacterial detection and infection treatment, and the mechanisms of action of designed diagnostic and therapeutic agents will be highlighted. Based on these cases, we have briefly discussed the current issues and perspective of Au NCs for bacterial detection and infection treatment applications.
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Affiliation(s)
- Mingxiu Tang
- The Second Affiliated Hospital, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Jian Zhang
- The Second Affiliated Hospital, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Chunyan Yang
- The Second Affiliated Hospital, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Youkun Zheng
- Key Laboratory of Medical Electrophysiology of Ministry of Education, Drug Discovery Research Center, Southwest Medical University, Luzhou, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Hui Jiang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
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10
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Poderys V, Jarockyte G, Bagdonas S, Karabanovas V, Rotomskis R. Protein-stabilized gold nanoclusters for PDT: ROS and singlet oxygen generation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 204:111802. [PMID: 31981990 DOI: 10.1016/j.jphotobiol.2020.111802] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/10/2019] [Accepted: 01/18/2020] [Indexed: 10/25/2022]
Abstract
Suitable properties as well as eco-friendly synthesis of photoluminescent Au nanoclusters (NCs) make them promising compounds for biomedical diagnostics and visualization applications. However, the potential photochemical activity of such agents on cancerous cells is largely unknown. The nanoclusters (BSA-Au NCs) were synthetized in the presence of BSA (an average hydrodynamic diameter was about 9.4 nm, while the size of the metal cluster was <1.3 nm according to atomic force microscopy measurements) and possessed a broad photoluminescence band at 680 nm in buffered (pH 7.2) aqueous medium. The photochemical activity was studied by adding two fluorescent probes (dihydrorhodamine or Singlet Oxygen Sensor Green) for detection of reactive oxygen species in samples irradiated at 405 nm to minimize direct excitation of the probes. The photoluminescence measurements evidenced the capability of BSA-Au NCs to generate reactive oxygen species upon light exposure, while the observed sensitivity of the photoluminescence properties might be used to indicate photooxidative processes in the medium. The viability test performed on breast cancer cells after incubation with BSA-Au NCs and subsequent irradiation revealed notable difference in induced phototoxicity between two cell lines, which was not the case after the corresponding treatment using the photosensitizer chlorin e6.
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Affiliation(s)
- Vilius Poderys
- Laboratory of Biomedical Physics, National Cancer Institute, Baublio 3b, LT-08406 Vilnius, Lithuania
| | - Greta Jarockyte
- Laboratory of Biomedical Physics, National Cancer Institute, Baublio 3b, LT-08406 Vilnius, Lithuania
| | - Saulius Bagdonas
- Biophotonics group of Laser Research Center, Faculty of Physics of Vilnius University, Sauletekio 9, bldg. 3, LT-10222 Vilnius, Lithuania
| | - Vitalijus Karabanovas
- Laboratory of Biomedical Physics, National Cancer Institute, Baublio 3b, LT-08406 Vilnius, Lithuania; Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, Sauletekio 11, LT-10223 Vilnius, Lithuania.
| | - Ricardas Rotomskis
- Laboratory of Biomedical Physics, National Cancer Institute, Baublio 3b, LT-08406 Vilnius, Lithuania; Biophotonics group of Laser Research Center, Faculty of Physics of Vilnius University, Sauletekio 9, bldg. 3, LT-10222 Vilnius, Lithuania.
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Li D, Kumari B, Makabenta JM, Gupta A, Rotello V. Effective detection of bacteria using metal nanoclusters. NANOSCALE 2019; 11:22172-22181. [PMID: 31746916 PMCID: PMC8582014 DOI: 10.1039/c9nr08510f] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Antibiotic-resistant bacterial infections cause more than 700 000 deaths each year worldwide. Detection of bacteria is critical in limiting infection-based damage. Nanomaterials provide promising sensing platforms owing to their ability to access new interaction modalities. Nanoclusters feature sizes smaller than traditional nanomaterials, providing great sensitive ability for detecting analytes. The distinct optical and catalytic properties of nanoclusters combined with their biocompatibility enables them as efficient biosensors. In this review, we summarize multiple strategies that utilize nanoclusters for detection of pathogenic bacteria.
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Affiliation(s)
- Dan Li
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, USA.
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12
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Recent progress in nanomaterial-based electrochemical and optical sensors for hypoxanthine and xanthine. A review. Mikrochim Acta 2019; 186:749. [DOI: 10.1007/s00604-019-3842-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 09/16/2019] [Indexed: 12/26/2022]
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13
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Dykman LA, Khlebtsov NG. Methods for chemical synthesis of colloidal gold. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4843] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Wang Y, Yang H, Chen S, Chen H, Chai Z. Fabrication of Hybrid Polymeric Micelles Containing AuNPs and Metalloporphyrin in the Core. Polymers (Basel) 2019; 11:E390. [PMID: 30960374 PMCID: PMC6474126 DOI: 10.3390/polym11030390] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/15/2019] [Accepted: 02/20/2019] [Indexed: 11/16/2022] Open
Abstract
Multi-structure assemblies consisting of gold nanoparticles and porphyrin were fabricated by using diblock copolymer, poly(ethylene glycol)-block-poly(4-vinylpyridine) (PEG-b-P4VP). The copolymer of PEG-b-P4VP was used in the formation of core-shell micelles in water, in which the P4VP block serves as the core, while the PEG block forms the shell. In the micellar core, gold nanoparticle and metalloporphyrin were dispersed through the axial coordination. Structural and morphological characterizations of the complex micelle were carried out by transmission electron microscopy, laser light scatting, and UV-visible spectroscopy. Metalloporphyrin in the complex micelle exhibited excellent photostability by reducing the generation of the singlet oxygen. This strategy may provide a novel approach to design photocatalysts that have target applications in photocatalysis and solar cells.
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Affiliation(s)
- Yanxia Wang
- Department of Environmental Engineering, North China Institute of Science and Technology, P.O. Box 206, Yanjiao, Beijing 101601, China.
| | - Heng Yang
- Department of Environmental Engineering, North China Institute of Science and Technology, P.O. Box 206, Yanjiao, Beijing 101601, China.
| | - Si Chen
- Department of Environmental Engineering, North China Institute of Science and Technology, P.O. Box 206, Yanjiao, Beijing 101601, China.
| | - Hua Chen
- Department of Environmental Engineering, North China Institute of Science and Technology, P.O. Box 206, Yanjiao, Beijing 101601, China.
| | - Zhihua Chai
- Department of Environmental Engineering, North China Institute of Science and Technology, P.O. Box 206, Yanjiao, Beijing 101601, China.
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Jin S, Liu W, Hu D, Zou X, Kang X, Du W, Chen S, Wei S, Wang S, Zhu M. Aggregation-Induced Emission (AIE) in Ag-Au Bimetallic Nanocluster. Chemistry 2018; 24:3712-3715. [PMID: 29392775 DOI: 10.1002/chem.201800189] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Indexed: 12/20/2022]
Abstract
Herein we report the synthesis and structure determination of a non-fluorescent Au4 Ag5 (dppm)2 (SAdm)6 (BPh4 ) (dppm=bis(diphenylphosphino)methane and HSAdm=1-adamantane mercaptan) nanocluster in methanol with extremely strong AIE when aggregating to the solid state (i.e., film or crystal). This phenomenon was rarely reported in structural determined noble metal nanoclusters. The extended X-ray absorption fine structure (EXAFS) measurement ruled out the hypothesis that the luminescence originated from the structure change in different states. Besides, the crystal structure (determined by X-ray diffraction) revealed that the tightly combined left- and right-handed enantiomers induced the strong restriction of intramolecular motions (RIM), which may have an impact on aggregation-induced emission.
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Affiliation(s)
- Shan Jin
- Department of Chemistry, Center for Atomic Engineering of, Advanced Materials, Anhui University, Hefei, Anhui, 230601, P.R. China
| | - Wei Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, P.R. China
| | - Daqiao Hu
- Department of Chemistry, Center for Atomic Engineering of, Advanced Materials, Anhui University, Hefei, Anhui, 230601, P.R. China
| | - Xuejuan Zou
- Department of Chemistry, Center for Atomic Engineering of, Advanced Materials, Anhui University, Hefei, Anhui, 230601, P.R. China
| | - Xi Kang
- Department of Chemistry, Center for Atomic Engineering of, Advanced Materials, Anhui University, Hefei, Anhui, 230601, P.R. China
| | - Wenjun Du
- Department of Chemistry, Center for Atomic Engineering of, Advanced Materials, Anhui University, Hefei, Anhui, 230601, P.R. China
| | - Shuang Chen
- Department of Chemistry, Center for Atomic Engineering of, Advanced Materials, Anhui University, Hefei, Anhui, 230601, P.R. China
| | - Shiqiang Wei
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, P.R. China
| | - Shuxin Wang
- Department of Chemistry, Center for Atomic Engineering of, Advanced Materials, Anhui University, Hefei, Anhui, 230601, P.R. China
| | - Manzhou Zhu
- Department of Chemistry, Center for Atomic Engineering of, Advanced Materials, Anhui University, Hefei, Anhui, 230601, P.R. China
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16
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Chen Q, Zhang L, Feng Y, Shi F, Wang Y, Wang P, Liu L. Dual-functional peptide conjugated gold nanorods for the detection and photothermal ablation of pathogenic bacteria. J Mater Chem B 2018; 6:7643-7651. [DOI: 10.1039/c8tb01835a] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Au@peptide937 nanorods for detecting bacteria by specific binding and killing bacteria due to the local hyperthermal effect.
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Affiliation(s)
- Qingyu Chen
- Institute for Advanced Materials
- School of Materials Science and Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Liwei Zhang
- Institute for Advanced Materials
- School of Materials Science and Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Yonghai Feng
- Institute for Advanced Materials
- School of Materials Science and Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Fan Shi
- State Key Laboratory of Bioreactor Engineering
- Biomedical Nanotechnology Center
- Shanghai Collaborative Innovation Center for Biomanufacturing
- School of Biotechnology
- East China University of Science and Technology
| | - Yibing Wang
- State Key Laboratory of Bioreactor Engineering
- Biomedical Nanotechnology Center
- Shanghai Collaborative Innovation Center for Biomanufacturing
- School of Biotechnology
- East China University of Science and Technology
| | - Ping Wang
- State Key Laboratory of Bioreactor Engineering
- Biomedical Nanotechnology Center
- Shanghai Collaborative Innovation Center for Biomanufacturing
- School of Biotechnology
- East China University of Science and Technology
| | - Lei Liu
- Institute for Advanced Materials
- School of Materials Science and Engineering
- Jiangsu University
- Zhenjiang 212013
- China
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17
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Cui HD, Hu DH, Zhang JN, Gao GH, Zheng CF, Gong P, Xi XH, Sheng ZH, Cai LT. Theranostic gold cluster nanoassembly for simultaneous enhanced cancer imaging and photodynamic therapy. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.12.038] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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18
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Wang Y, Hu L, Li L, Zhu JJ. Fluorescent Gold Nanoclusters: Promising Fluorescent Probes for Sensors and Bioimaging. JOURNAL OF ANALYSIS AND TESTING 2017. [DOI: 10.1007/s41664-017-0015-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Lv Y, Kang X, Yang S, Chen T, Liu A, Yu H, Zhu M. Theoretical investigations on the structure–property relationships of Au13and AuxM13−xnanoclusters. RSC Adv 2017. [DOI: 10.1039/c7ra08421h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The effect of ligands and dopants on AuxM13−xNCs was studied by DFT and TD-DFT calculations.
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Affiliation(s)
- Ying Lv
- Department of Chemistry
- Center for Atomic Engineering of Advanced Materials
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials
- Anhui University
- Hefei
| | - Xi Kang
- Department of Chemistry
- Center for Atomic Engineering of Advanced Materials
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials
- Anhui University
- Hefei
| | - Sha Yang
- Department of Chemistry
- Center for Atomic Engineering of Advanced Materials
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials
- Anhui University
- Hefei
| | - Tao Chen
- Department of Chemistry
- Center for Atomic Engineering of Advanced Materials
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials
- Anhui University
- Hefei
| | - Ao Liu
- Department of Chemistry
- Center for Atomic Engineering of Advanced Materials
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials
- Anhui University
- Hefei
| | - Haizhu Yu
- Department of Chemistry
- Center for Atomic Engineering of Advanced Materials
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials
- Anhui University
- Hefei
| | - Manzhou Zhu
- Department of Chemistry
- Center for Atomic Engineering of Advanced Materials
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials
- Anhui University
- Hefei
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20
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Khandelwal P, Poddar P. Fluorescent metal quantum clusters: an updated overview of the synthesis, properties, and biological applications. J Mater Chem B 2017; 5:9055-9084. [DOI: 10.1039/c7tb02320k] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A brief history of metal quantum clusters, their synthesis methods, physical properties, and an updated overview of their applications is provided.
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Affiliation(s)
- Puneet Khandelwal
- Physical & Materials Chemistry Division
- CSIR-National Chemical Laboratory
- Pune – 411008
- India
| | - Pankaj Poddar
- Physical & Materials Chemistry Division
- CSIR-National Chemical Laboratory
- Pune – 411008
- India
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21
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Borghei YS, Hosseini M, Khoobi M, Ganjali MR. Novel Fluorometric Assay for Detection of Cysteine as a Reducing Agent and Template in Formation of Copper Nanoclusters. J Fluoresc 2016; 27:529-536. [DOI: 10.1007/s10895-016-1980-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Accepted: 11/03/2016] [Indexed: 11/30/2022]
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22
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Ramazanov RR, Sych TS, Reveguk ZV, Maksimov DA, Vdovichev AA, Kononov AI. Ag-DNA Emitter: Metal Nanorod or Supramolecular Complex? J Phys Chem Lett 2016; 7:3560-6. [PMID: 27564452 DOI: 10.1021/acs.jpclett.6b01672] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Ligand-stabilized luminescent metal clusters, in particular, DNA-based Ag clusters, are now employed in a host of applications such as sensing and bioimaging. Despite their utility, the nature of their excited states as well as detailed structures of the luminescent metal-ligand complexes remain poorly understood. We apply a new joint experimental and theoretical approach based on QM/MM-MD simulations of the fluorescence excitation spectra for three Ag clusters synthesized on a 12-mer DNA. Contrary to a previously proposed "rod-like" model, our results show that (1) three to four Ag atoms suffice to form a partially oxidized nanocluster emitting in visible range; (2) charge transfer from Ag cluster to DNA contributes to the excited states of the complexes; and (3) excitation spectra of the clusters are strongly affected by the bonding of Ag atoms to DNA bases. The presented approach can also provide a practical way to determine the structure and properties of other luminescent metal clusters.
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Affiliation(s)
- Ruslan R Ramazanov
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg State University , 199034 St. Petersburg, Russia
| | - Tomash S Sych
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg State University , 199034 St. Petersburg, Russia
| | - Zakhar V Reveguk
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg State University , 199034 St. Petersburg, Russia
| | - Dmitriy A Maksimov
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg State University , 199034 St. Petersburg, Russia
| | - Artem A Vdovichev
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg State University , 199034 St. Petersburg, Russia
| | - Alexei I Kononov
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg State University , 199034 St. Petersburg, Russia
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23
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Dykman LA, Khlebtsov NG. Multifunctional gold-based nanocomposites for theranostics. Biomaterials 2016; 108:13-34. [PMID: 27614818 DOI: 10.1016/j.biomaterials.2016.08.040] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 08/08/2016] [Accepted: 08/23/2016] [Indexed: 01/21/2023]
Abstract
Although Au-particle potential in nanobiotechnology has been recognized for the last 15 years, new insights into the unique properties of multifunctional nanostructures have just recently started to emerge. Multifunctional gold-based nanocomposites combine multiple modalities to improve the efficacy of the therapeutic and diagnostic treatment of cancer and other socially significant diseases. This review is focused on multifunctional gold-based theranostic nanocomposites, which can be fabricated by three main routes. The first route is to create composite (or hybrid) nanoparticles, whose components enable diagnostic and therapeutic functions. The second route is based on smart bioconjugation techniques to functionalize gold nanoparticles with a set of different molecules, enabling them to perform targeting, diagnostic, and therapeutic functions in a single treatment procedure. Finally, the third route for multifunctionalized composite nanoparticles is a combination of the first two and involves additional functionalization of hybrid nanoparticles with several molecules possessing different theranostic modalities. This last class of multifunctionalized composites also includes fluorescent atomic clusters with multiple functionalities.
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Affiliation(s)
- Lev A Dykman
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia.
| | - Nikolai G Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia; Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov 410012, Russia
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24
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Jin R, Zeng C, Zhou M, Chen Y. Atomically Precise Colloidal Metal Nanoclusters and Nanoparticles: Fundamentals and Opportunities. Chem Rev 2016; 116:10346-413. [DOI: 10.1021/acs.chemrev.5b00703] [Citation(s) in RCA: 1953] [Impact Index Per Article: 244.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Rongchao Jin
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Chenjie Zeng
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Meng Zhou
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Yuxiang Chen
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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25
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Bucharskaya A, Maslyakova G, Terentyuk G, Yakunin A, Avetisyan Y, Bibikova O, Tuchina E, Khlebtsov B, Khlebtsov N, Tuchin V. Towards Effective Photothermal/Photodynamic Treatment Using Plasmonic Gold Nanoparticles. Int J Mol Sci 2016; 17:E1295. [PMID: 27517913 PMCID: PMC5000692 DOI: 10.3390/ijms17081295] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 07/22/2016] [Accepted: 07/29/2016] [Indexed: 01/24/2023] Open
Abstract
Gold nanoparticles (AuNPs) of different size and shape are widely used as photosensitizers for cancer diagnostics and plasmonic photothermal (PPT)/photodynamic (PDT) therapy, as nanocarriers for drug delivery and laser-mediated pathogen killing, even the underlying mechanisms of treatment effects remain poorly understood. There is a need in analyzing and improving the ways to increase accumulation of AuNP in tumors and other crucial steps in interaction of AuNPs with laser light and tissues. In this review, we summarize our recent theoretical, experimental, and pre-clinical results on light activated interaction of AuNPs with tissues and cells. Specifically, we discuss a combined PPT/PDT treatment of tumors and killing of pathogen bacteria with gold-based nanocomposites and atomic clusters, cell optoporation, and theoretical simulations of nanoparticle-mediated laser heating of tissues and cells.
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Affiliation(s)
- Alla Bucharskaya
- Research Institute for Fundamental and Clinical Uronephrology, Saratov State Medical University, n.a. V.I. Razumovsky, 410012 Saratov, Russia.
| | - Galina Maslyakova
- Research Institute for Fundamental and Clinical Uronephrology, Saratov State Medical University, n.a. V.I. Razumovsky, 410012 Saratov, Russia.
| | - Georgy Terentyuk
- Research Institute for Fundamental and Clinical Uronephrology, Saratov State Medical University, n.a. V.I. Razumovsky, 410012 Saratov, Russia.
- Research-Education Institute of Optics and Biophotonics, Saratov National Research State University, 410012 Saratov, Russia.
| | - Alexander Yakunin
- Institute of Precision Mechanics and Control, RAS, 410028 Saratov, Russia.
| | - Yuri Avetisyan
- Institute of Precision Mechanics and Control, RAS, 410028 Saratov, Russia.
| | - Olga Bibikova
- Research-Education Institute of Optics and Biophotonics, Saratov National Research State University, 410012 Saratov, Russia.
- Artphotonics GmbH, 12489 Berlin, Germany.
- Optoelectronics and Measurement Techniques Laboratory, University of Oulu, 90014 Oulu, Finland.
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, 89081 Ulm, Germany.
| | - Elena Tuchina
- Department of Biology, Saratov National Research State University, 410012 Saratov, Russia.
| | - Boris Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, RAS, 410049 Saratov, Russia.
- Department of Nano- and Biomedical Technologies, Saratov National Research State University, 410012 Saratov, Russia.
| | - Nikolai Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, RAS, 410049 Saratov, Russia.
- Department of Nano- and Biomedical Technologies, Saratov National Research State University, 410012 Saratov, Russia.
| | - Valery Tuchin
- Research-Education Institute of Optics and Biophotonics, Saratov National Research State University, 410012 Saratov, Russia.
- Institute of Precision Mechanics and Control, RAS, 410028 Saratov, Russia.
- Interdisciplinary Laboratory of Biophotonics, National Research Tomsk State University, 634050 Tomsk, Russia.
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26
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Yu Y, Mok BYL, Loh XJ, Tan YN. Rational Design of Biomolecular Templates for Synthesizing Multifunctional Noble Metal Nanoclusters toward Personalized Theranostic Applications. Adv Healthc Mater 2016; 5:1844-59. [PMID: 27377035 DOI: 10.1002/adhm.201600192] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 04/08/2016] [Indexed: 12/21/2022]
Abstract
Biomolecule-templated or biotemplated metal nanoclusters (NCs) are ultrasmall (<2 nm) metal (Au, Ag) particles stabilized by a certain type of biomolecular template (e.g., peptides, proteins, and DNA). Due to their unique physiochemical properties, biotemplated metal NCs have been widely used in sensing, imaging, delivery and therapy. The overwhelming applications in these individual areas imply the great promise of harnessing biotemplated metal NCs in more advanced biomedical aspects such as theranostics. Although applications of biotemplated metal NCs as theranostic agents are trending, the rational design of biomolecular templates suitable for the synthesis of multifunctional metal NCs for theranostics is comparatively underexplored. This progress report first identifies the essential attributes of biotemplated metal NCs for theranostics by reviewing the state-of-art applications in each of the four modalities of theranostics, namely sensing, imaging, delivery and therapy. To achieve high efficacy in these modalities, we elucidate the design principles underlying the use of biomolecules (proteins, peptides and nucleic acids) to control the NC size, emission color and surface chemistries for post-functionalization of therapeutic moieties. We then propose a unified strategy to engineer biomolecular templates that combine all these modalities to produce multifunctional biotemplated metal NCs that can serve as the next-generation personalized theranostic agents.
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Affiliation(s)
- Yong Yu
- Institute of Materials Research and Engineering; The Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, #08-03 Innovis 138634 Singapore
| | - Beverly Y. L. Mok
- Institute of Materials Research and Engineering; The Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, #08-03 Innovis 138634 Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering; The Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, #08-03 Innovis 138634 Singapore
| | - Yen Nee Tan
- Institute of Materials Research and Engineering; The Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, #08-03 Innovis 138634 Singapore
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27
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Ruiyi L, Huiying W, Xiaoyan Z, Xiaoqing L, Xiulan S, Zaijun L. d-Penicillamine and bovine serum albumin co-stabilized copper nanoclusters with remarkably enhanced fluorescence intensity and photostability for ultrasensitive detection of Ag+. NEW J CHEM 2016. [DOI: 10.1039/c5nj02615f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study reports the synthesis of d-penicillamine and bovine serum albumin co-stabilized copper nanoclusters. The nanoclusters show high fluorescence intensity, stability and response towards silver ion.
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Affiliation(s)
- Li Ruiyi
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- China
| | - Wang Huiying
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- China
| | - Zhou Xiaoyan
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- China
| | - Liao Xiaoqing
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- China
| | - Sun Xiulan
- School of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- China
| | - Li Zaijun
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- China
- Key Laboratory of Food Colloids and Biotechnology
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28
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Gharatape A, Davaran S, Salehi R, Hamishehkar H. Engineered gold nanoparticles for photothermal cancer therapy and bacteria killing. RSC Adv 2016. [DOI: 10.1039/c6ra18760a] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Gold nanoparticle mediated photothermal therapy in future medicine.
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Affiliation(s)
- Alireza Gharatape
- Department of Medical Nanotechnology
- School of Advanced Medical Science
- Tabriz University of Medical Science
- Tabriz
- Iran
| | - Soodabeh Davaran
- Drug Applied Research Center and Department of Medicinal Chemistry
- Faculty of Pharmacy
- Tabriz University of Medical Science
- Tabriz
- Iran
| | - Roya Salehi
- Research Center for Pharmaceutical Nanotechnology and Department of Medical Nanotechnology
- School of Advanced Medical Science
- Tabriz University of Medical Science
- Tabriz
- Iran
| | - Hamed Hamishehkar
- Drug Applied Research Center
- Tabriz University of Medical Science
- Tabriz
- Iran
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29
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Ruiz-González R, Agut M, Reddi E, Nonell S. A Comparative Study on Two Cationic Porphycenes: Photophysical and Antimicrobial Photoinactivation Evaluation. Int J Mol Sci 2015; 16:27072-86. [PMID: 26569238 PMCID: PMC4661857 DOI: 10.3390/ijms161125999] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 10/19/2015] [Accepted: 11/02/2015] [Indexed: 11/22/2022] Open
Abstract
Over the last decades, the number of pathogenic multi-resistant microorganisms has grown dramatically, which has stimulated the search for novel strategies to combat antimicrobial resistance. Antimicrobial photodynamic therapy (aPDT) is one of the promising alternatives to conventional treatments based on antibiotics. Here, we present a comparative study of two aryl tricationic porphycenes where photoinactivation efficiency against model pathogenic microorganisms is correlated to the photophysical behavior of the porphycene derivatives. Moreover, the extent of photosensitizer cell binding to bacteria has been assessed by flow cytometry in experiments with, or without, removing the unbound porphycene from the incubation medium. Results show that the peripheral substituent change do not significantly affect the overall behavior for both tricationic compounds neither in terms of photokilling efficiency, nor in terms of binding.
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Affiliation(s)
- Rubén Ruiz-González
- Institut Químic de Sarrià, Universitat Ramon Llull, via Augusta 390, E-08017 Barcelona, Spain.
| | - Montserrat Agut
- Institut Químic de Sarrià, Universitat Ramon Llull, via Augusta 390, E-08017 Barcelona, Spain.
| | - Elena Reddi
- Department of Biology, University of Padova, via U. Bassi 58/B, E-35121 Padova, Italy.
| | - Santi Nonell
- Institut Químic de Sarrià, Universitat Ramon Llull, via Augusta 390, E-08017 Barcelona, Spain.
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