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Xu F, Li Y, Zhao X, Liu G, Pang B, Liao N, Li H, Shi J. Diversity of fungus-mediated synthesis of gold nanoparticles: properties, mechanisms, challenges, and solving methods. Crit Rev Biotechnol 2024; 44:924-940. [PMID: 37455417 DOI: 10.1080/07388551.2023.2225131] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 05/21/2023] [Indexed: 07/18/2023]
Abstract
Fungi-mediated synthesis of Gold nanoparticles (AuNPs) has advantages in: high efficiency, low energy consumption, no need for extra capping and stabilizing agents, simple operation, and easy isolation and purification. Many fungi have been found to synthesize AuNPs inside cells or outside cells, providing different composition and properties of particles when different fungi species or reaction conditions are used. This is good to produce AuNPs with different properties, but may cause challenges to precisely control the particle shape, size, and activities. Besides, low concentrations of substrate and fungal biomass are needed to synthesize small-size particles, limiting the yield of AuNPs in a large scale. To find clues for the development methods to solve these challenges, the reported mechanisms of the fungi-mediated synthesis of AuNPs were summarized. The mechanisms of intracellular AuNPs synthesis are dependent on gold ions absorption by the fungal cell wall via proteins, polysaccharides, or electric absorption, and the reduction of gold ions via enzymes, proteins, and other cytoplasmic redox mediators in the cytoplasm or cell wall. The extracellular synthesis of AuNPs is mainly due to the metabolites outside fungal cells, including proteins, peptides, enzymes, and phenolic metabolites. These mechanisms cause the great diversity of the produced AuNPs in functional groups, element composition, shapes, sizes, and properties. Many methods have been developed to improve the synthesis efficiency by changing: chloroauric acid concentrations, reaction temperature, pH, fungal mass, and reaction time. However, future studies are still required to precisely control the: shape, size, composition, and properties of fungal AuNPs.
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Affiliation(s)
- Fengqin Xu
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
| | - Yinghui Li
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
| | - Xixi Zhao
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
| | - Guanwen Liu
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
| | - Bing Pang
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
| | - Ning Liao
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
| | - Huixin Li
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
| | - Junling Shi
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
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2
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Yang DH, Nah H, Lee D, Min SJ, Park S, An SH, Wang J, He H, Choi KS, Ko WK, Lee JS, Kwon IK, Lee SJ, Heo DN. A review on gold nanoparticles as an innovative therapeutic cue in bone tissue engineering: Prospects and future clinical applications. Mater Today Bio 2024; 26:101016. [PMID: 38516171 PMCID: PMC10952045 DOI: 10.1016/j.mtbio.2024.101016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 02/19/2024] [Accepted: 03/02/2024] [Indexed: 03/23/2024] Open
Abstract
Bone damage is a complex orthopedic problem primarily caused by trauma, cancer, or bacterial infection of bone tissue. Clinical care management for bone damage remains a significant clinical challenge and there is a growing need for more advanced bone therapy options. Nanotechnology has been widely explored in the field of orthopedic therapy for the treatment of a severe bone disease. Among nanomaterials, gold nanoparticles (GNPs) along with other biomaterials are emerging as a new paradigm for treatment with excellent potential for bone tissue engineering and regenerative medicine applications. In recent years, a great deal of research has focused on demonstrating the potential for GNPs to provide for enhancement of osteogenesis, reduction of osteoclastogenesis/osteomyelitis, and treatment of bone cancer. This review details the latest understandings in regards to GNPs based therapeutic systems, mechanisms, and the applications of GNPs against various bone disorders. The present review aims to summarize i) the mechanisms of GNPs in bone tissue remodeling, ii) preparation methods of GNPs, and iii) functionalization of GNPs and its decoration on biomaterials as a delivery vehicle in a specific bone tissue engineering for future clinical application.
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Affiliation(s)
- Dae Hyeok Yang
- Institute of Cell and Tissue Engineering, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Haram Nah
- Department of Dentistry, Graduate School, Kyung Hee University, 26 Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
| | - Donghyun Lee
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu, 41061, Republic of Korea
| | - Sung Jun Min
- Department of Dentistry, Graduate School, Kyung Hee University, 26 Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
| | - Seulki Park
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu, 41061, Republic of Korea
| | - Sang-Hyun An
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu, 41061, Republic of Korea
| | - Jianxin Wang
- Department of Pharmaceutics, School of Pharmacy, Fudan University & Key Laboratory of Smart Drug Delivery, Ministry of Education, Shanghai, 201203, China
| | - Huining He
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Kyu-Sun Choi
- Department of Neurosurgery, College of Medicine, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Wan-Kyu Ko
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
| | - Jae Seo Lee
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Il Keun Kwon
- Department of Dental Materials, School of Dentistry, Kyung Hee University, 26 Kyungheedae-Ro, Dongdaemun-Gu, Seoul 02447, Republic of Korea
- Kyung Hee University Medical Science Research Institute, Kyung Hee University, 23 Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
| | - Sang Jin Lee
- Biofunctional Materials, Division of Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Sai Ying Pun, Hong Kong SAR, China
| | - Dong Nyoung Heo
- Department of Dental Materials, School of Dentistry, Kyung Hee University, 26 Kyungheedae-Ro, Dongdaemun-Gu, Seoul 02447, Republic of Korea
- Biofriends Inc, 26 Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
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3
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Zhang R, Thoröe-Boveleth S, Chigrin DN, Kiessling F, Lammers T, Pallares RM. Nanoscale engineering of gold nanostars for enhanced photoacoustic imaging. J Nanobiotechnology 2024; 22:115. [PMID: 38493118 PMCID: PMC10943878 DOI: 10.1186/s12951-024-02379-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 02/28/2024] [Indexed: 03/18/2024] Open
Abstract
Photoacoustic (PA) imaging is a diagnostic modality that combines the high contrast resolution of optical imaging with the high tissue penetration of ultrasound. While certain endogenous chromophores can be visualized via PA imaging, many diagnostic assessments require the administration of external probes. Anisotropic gold nanoparticles are particularly valued as contrast agents, since they produce strong PA signals and do not photobleach. However, the synthesis of anisotropic nanoparticles typically requires cytotoxic reagents, which can hinder their biological application. In this work, we developed new PA probes based on nanostar cores and polymeric shells. These AuNS were obtained through one-pot synthesis with biocompatible Good's buffers, and were subsequently functionalized with polyethylene glycol, chitosan or melanin, three coatings widely used in (pre)clinical research. Notably, the structural features of the nanostar cores strongly affected the PA signal. For instance, despite displaying similar sizes (i.e. 45 nm), AuNS obtained with MOPS buffer generated between 2 and 3-fold greater signal intensities in the region between 700 and 800 nm than nanostars obtained with HEPES and EPPS buffers, and up to 25-fold stronger signals than spherical gold nanoparticles. A point source analytical model demonstrated that AuNS synthesized with MOPS displayed greater absorption coefficients than the other particles, corroborating the stronger PA responses. Furthermore, the AuNS shell not only improved the biocompatibility of the nanoconstructs but also affected their performance, with melanin coating enhancing the signal more than 4-fold, due to its own PA capacity, as demonstrated by both in vitro and ex vivo imaging. Taken together, these results highlight the strengths of gold nanoconstructs as PA probes and offer insights into the design rules for the nanoengineering of new nanodiagnostic agents.
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Affiliation(s)
- Rui Zhang
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, 52074, Aachen, Germany
| | - Sven Thoröe-Boveleth
- Institute for Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, 52074, Aachen, Germany
| | - Dmitry N Chigrin
- Institute of Physics (1A), RWTH Aachen University, 52056, Aachen, Germany
- DWI - Leibniz Institute for Interactive Materials, 52076, Aachen, Germany
| | - Fabian Kiessling
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, 52074, Aachen, Germany
| | - Twan Lammers
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, 52074, Aachen, Germany
| | - Roger M Pallares
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, 52074, Aachen, Germany.
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4
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Song Z, Yang Y, Hou P, Zhang X, Liang S, Chen J. Wave absorbing properties of Ni Nanoparticle/CNT composite film fabricated by AAO/CNTs electrode. Heliyon 2024; 10:e26054. [PMID: 38404821 PMCID: PMC10884799 DOI: 10.1016/j.heliyon.2024.e26054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 02/07/2024] [Accepted: 02/07/2024] [Indexed: 02/27/2024] Open
Abstract
An effective wave absorbing Nano-Ni/carbon nanotubes (CNTs) composite film was developed by electrodeposition using an anodic aluminum oxide (AAO)/CNTs electrode. Scanning electron microscopy images confirmed the uniform dispersion of Ni nano-particles within the CNTs, and the particle diameter increasing from 20 nm to 100 nm as the deposition time increased. XRD test results revealed that the crystal phase of the Ni nano-particles remained unchanged during different deposition time, exhibiting a Face Center Cubic (fcc) structure. The microwave electromagnetic properties of the film were evaluated using a vector network analyzer, and the return loss curve demonstrated that the Ni nano-particles/CNTs composite exhibited exceptional wave absorption capabilities. The composite film showed an effective absorption width of 13 GHz (4-17 GHz) and achieved a minimum reflection loss (RL) of -17 dB at 14 GHz.
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Affiliation(s)
- Zhenxing Song
- School of Science, Tianjin University of Science and Technology, Tianjin 300450, China
| | - Yue Yang
- School of Science, Tianjin University of Science and Technology, Tianjin 300450, China
| | - Panchao Hou
- School of Science, Tianjin University of Science and Technology, Tianjin 300450, China
| | - Xiaorui Zhang
- School of Science, Tianjin University of Science and Technology, Tianjin 300450, China
| | - Shan Liang
- School of Science, Tianjin University of Science and Technology, Tianjin 300450, China
| | - Jun Chen
- Hunan Kejing New Energy Technology Co., Ltd., China
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5
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Menichetti A, Mordini D, Montalti M. Polydopamine Nanosystems in Drug Delivery: Effect of Size, Morphology, and Surface Charge. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:303. [PMID: 38334574 PMCID: PMC10856634 DOI: 10.3390/nano14030303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/10/2024]
Abstract
Recently, drug delivery strategies based on nanomaterials have attracted a lot of interest in different kinds of therapies because of their superior properties. Polydopamine (PDA), one of the most interesting materials in nanomedicine because of its versatility and biocompatibility, has been widely investigated in the drug delivery field. It can be easily functionalized to favor processes like cellular uptake and blood circulation, and it can also induce drug release through two kinds of stimuli: NIR light irradiation and pH. In this review, we describe PDA nanomaterials' performance on drug delivery, based on their size, morphology, and surface charge. Indeed, these characteristics strongly influence the main mechanisms involved in a drug delivery system: blood circulation, cellular uptake, drug loading, and drug release. The understanding of the connections between PDA nanosystems' properties and these phenomena is pivotal to obtain a controlled design of new nanocarriers based on the specific drug delivery applications.
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Affiliation(s)
| | | | - Marco Montalti
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy; (A.M.); (D.M.)
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6
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Zhang J, Zhu W, Liang J, Li L, Zheng L, Shi X, Wang C, Dong Y, Li C, Zhu X. In Situ Synthesis of Gold Nanoparticles from Chitin Nanogels and Their Drug Release Response to Stimulation. Polymers (Basel) 2024; 16:390. [PMID: 38337280 DOI: 10.3390/polym16030390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
In this study, gold nanoparticles (AuNPs) were synthesized in situ using chitin nanogels (CNGs) as templates to prepare composites (CNGs@AuNPs) with good photothermal properties, wherein their drug release properties in response to stimulation by near-infrared (NIR) light were investigated. AuNPs with particle sizes ranging from 2.5 nm to 90 nm were prepared by varying the reaction temperature and chloroauric acid concentration. The photothermal effect of different materials was probed by near-infrared light. Under 1 mg/mL of chloroauric acid at 120 °C, the prepared CNGs@AuNPs could increase the temperature by 32 °C within 10 min at a power of 2 W/cm2. The Adriamycin hydrochloride (DOX) was loaded into the CNGs@AuNPs to investigate their release behaviors under different pH values, temperatures, and near-infrared light stimulations. The results showed that CNGs@AuNPs were pH- and temperature-responsive, suggesting that low pH and high temperature could promote drug release. In addition, NIR light stimulation accelerated the drug release. Cellular experiments confirmed the synergistic effect of DOX-loaded CNGs@AuNPs on chemotherapy and photothermal therapy under NIR radiation.
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Affiliation(s)
- Jianwei Zhang
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China
| | - Wenjin Zhu
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China
| | - Jingyi Liang
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Limei Li
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China
| | - Longhui Zheng
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China
| | - Xiaowen Shi
- School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China
| | - Chao Wang
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Youming Dong
- College of Materials Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Cheng Li
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China
| | - Xiuhong Zhu
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China
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7
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Rathnam SS, Deepak T, Sahoo BN, Meena T, Singh Y, Joshi A. Metallic Nanocarriers for Therapeutic Peptides: Emerging Solutions Addressing the Delivery Challenges in Brain Ailments. J Pharmacol Exp Ther 2024; 388:39-53. [PMID: 37875308 DOI: 10.1124/jpet.123.001689] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 10/01/2023] [Accepted: 10/10/2023] [Indexed: 10/26/2023] Open
Abstract
Peptides and proteins have recently emerged as efficient therapeutic alternatives to conventional therapies. Although they emerged a few decades back, extensive exploration of various ailments or disorders began recently. The drawbacks of current chemotherapies and irradiation treatments, such as drug resistance and damage to healthy tissues, have enabled the rise of peptides in the quest for better prospects. The chemical tunability and smaller size make them easy to design selectively for target tissues. Other remarkable properties include antifungal, antiviral, anti-inflammatory, protection from hemorrhage stroke, and as therapeutic agents for gastric disorders and Alzheimer and Parkinson diseases. Despite these unmatched properties, their practical applicability is often hindered due to their weak susceptibility to enzymatic digestion, serum degradation, liver metabolism, kidney clearance, and immunogenic reactions. Several methods are adapted to increase the half-life of peptides, such as chemical modifications, fusing with Fc fragment, change in amino acid composition, and carrier-based delivery. Among these, nanocarrier-mediated encapsulation not only increases the half-life of the peptides in vivo but also aids in the targeted delivery. Despite its structural complexity, they also efficiently deliver therapeutic molecules across the blood-brain barrier. Here, in this review, we tried to emphasize the possible potentiality of metallic nanoparticles to be used as an efficient peptide delivery system against brain tumors and neurodegenerative disorders. SIGNIFICANCE STATEMENT: In this review, we have emphasized the various therapeutic applications of peptides/proteins, including antimicrobial, anticancer, anti-inflammatory, and neurodegenerative diseases. We also focused on these peptides' challenges under physiological conditions after administration. We highlighted the importance and potentiality of metallic nanocarriers in the ability to cross the blood-brain barrier, increasing the stability and half-life of peptides, their efficiency in targeting the delivery, and their diagnostic applications.
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Affiliation(s)
- Shanmuga Sharan Rathnam
- Department of Biosciences and Biomedical Engineering (S.S.R., B.N.S., T.M., Y.S., A.J.), Indian Institute of Technology Indore, Simrol, India and Department of Biotechnology and Medical Engineering (T.D.), National Institute of Technology Rourkela, Rourkela, India
| | - Thirumalai Deepak
- Department of Biosciences and Biomedical Engineering (S.S.R., B.N.S., T.M., Y.S., A.J.), Indian Institute of Technology Indore, Simrol, India and Department of Biotechnology and Medical Engineering (T.D.), National Institute of Technology Rourkela, Rourkela, India
| | - Badri Narayana Sahoo
- Department of Biosciences and Biomedical Engineering (S.S.R., B.N.S., T.M., Y.S., A.J.), Indian Institute of Technology Indore, Simrol, India and Department of Biotechnology and Medical Engineering (T.D.), National Institute of Technology Rourkela, Rourkela, India
| | - Tanishq Meena
- Department of Biosciences and Biomedical Engineering (S.S.R., B.N.S., T.M., Y.S., A.J.), Indian Institute of Technology Indore, Simrol, India and Department of Biotechnology and Medical Engineering (T.D.), National Institute of Technology Rourkela, Rourkela, India
| | - Yogesh Singh
- Department of Biosciences and Biomedical Engineering (S.S.R., B.N.S., T.M., Y.S., A.J.), Indian Institute of Technology Indore, Simrol, India and Department of Biotechnology and Medical Engineering (T.D.), National Institute of Technology Rourkela, Rourkela, India
| | - Abhijeet Joshi
- Department of Biosciences and Biomedical Engineering (S.S.R., B.N.S., T.M., Y.S., A.J.), Indian Institute of Technology Indore, Simrol, India and Department of Biotechnology and Medical Engineering (T.D.), National Institute of Technology Rourkela, Rourkela, India
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8
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Nazarova D, Nedelchev L, Berberova-Buhova N, Mateev G. Nanocomposite Photoanisotropic Materials for Applications in Polarization Holography and Photonics. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2946. [PMID: 37999300 PMCID: PMC10674406 DOI: 10.3390/nano13222946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/27/2023] [Accepted: 11/03/2023] [Indexed: 11/25/2023]
Abstract
Photoanisotropic materials, in particular azodyes and azopolymers, have attracted significant research interest in the last decades. This is due to their applications in polarization holography and 4G optics, enabling polarization-selective diffractive optical elements with unique properties, including circular polarization beam-splitters, polarization-selective bifocal lenses, and many others. Numerous methods have been applied to increase the photoinduced birefringence of these materials, and as a result, to obtain polarization holographic elements with a high diffraction efficiency. Recently, a new approach has emerged that has been extensively studied by many research groups, namely doping azobenzene-containing materials with nanoparticles with various compositions, sizes, and morphologies. The resulting nanocomposites have shown significant enhancement in their photoanisotropic response, including increased photoinduced birefringence, leading to a higher diffraction efficiency and a larger surface relief modulation in the case of polarization holographic recordings. This review aims to cover the most important achievements in this new but fast-growing field of research and to present an extensive comparative analysis of the result, reported by many research groups during the last two decades. Different hypotheses to explain the mechanism of photoanisotropy enhancement in these nanocomposites are also discussed. Finally, we present our vision for the future development of this scientific field and outline its potential applications in advanced photonics technologies.
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Affiliation(s)
- Dimana Nazarova
- Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (D.N.); (N.B.-B.); (G.M.)
- Department of Physics, University of Chemical Technology and Metallurgy, 1756 Sofia, Bulgaria
| | - Lian Nedelchev
- Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (D.N.); (N.B.-B.); (G.M.)
- Department of Physics, University of Chemical Technology and Metallurgy, 1756 Sofia, Bulgaria
| | - Nataliya Berberova-Buhova
- Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (D.N.); (N.B.-B.); (G.M.)
- Department of Physics, University of Chemical Technology and Metallurgy, 1756 Sofia, Bulgaria
| | - Georgi Mateev
- Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (D.N.); (N.B.-B.); (G.M.)
- Department of Physics, University of Chemical Technology and Metallurgy, 1756 Sofia, Bulgaria
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9
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Peck K, Lien J, Su M, Stacy AD, Guo T. Bottom-Up Then Top-Down Synthesis of Gold Nanostructures Using Mesoporous Silica-Coated Gold Nanorods. ACS OMEGA 2023; 8:42667-42677. [PMID: 38024760 PMCID: PMC10652254 DOI: 10.1021/acsomega.3c05444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/22/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023]
Abstract
Gold nanostructures were synthesized by etching away gold from heat-treated mesoporous silica-coated gold nanorods (AuNR@mSiO2), providing an example of top-down modification of nanostructures made using bottom-up methodology. Twelve different types of nanostructures were made using this bottom-up-then-top-down synthesis (BUTTONS), of which the etching of the same starting nanomaterial of AuNR@mSiO2 was found to be controlled by how AuNR@mSiO2 were heat treated, the etchant concentration, and etching time. When the heat treatment occurred in smooth moving solutions in round-bottomed flasks, red-shifted longitudinal surface plasmon resonance (LSPR) was observed, on the order of 10-30 min, indicating increased aspect ratios of the gold nanostructures inside the mesoporous silica shells. When the heat treatment occurred in turbulent solutions in scintillation vials, a blue shift of the LSPR was obtained within a few minutes or less, resulting from reduced aspect ratios of the rods in the shells. The influence of the shape of the glassware, which may impact the flow patterns of the solution, on the heat treatment was investigated. One possible explanation is that the flow patterns affect the location of opened pores in the mesoporous shells, with the smooth flow of solution mainly removing CTAB surfactants from the pores along the cylindrical body of mSiO2, therefore increasing the aspect ratios after etching, and the turbulent solutions removing more surfactants from the pores of the two ends or tips of the silica shells, hence decreasing the aspect ratios after etching. These new stable gold nanostructures in silica shells, bare and without surfactant protection, may possess unique chemical properties and capabilities. Catalysis using heat-treated nanomaterials was studied as an example of potential applications of these nanostructures.
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Affiliation(s)
- Kristin
A. Peck
- Department of Chemistry, University
of California, Davis, California 95616, United States
| | - Jennifer Lien
- Department of Chemistry, University
of California, Davis, California 95616, United States
| | - Mengqi Su
- Department of Chemistry, University
of California, Davis, California 95616, United States
| | - Aaron D. Stacy
- Department of Chemistry, University
of California, Davis, California 95616, United States
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10
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Manuel LD, Vincely VD, Bayer CL, McPeak KM. Monodisperse Sub-100 nm Au Nanoshells for Low-Fluence Deep-Tissue Photoacoustic Imaging. NANO LETTERS 2023; 23:7334-7340. [PMID: 37540682 PMCID: PMC10450810 DOI: 10.1021/acs.nanolett.3c01696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/29/2023] [Indexed: 08/06/2023]
Abstract
Nanoparticles with high absorption cross sections will advance therapeutic and bioimaging nanomedicine technologies. While Au nanoshells have shown great promise in nanomedicine, state-of-the-art synthesis methods result in scattering-dominant particles, mitigating their efficacy in absorption-based techniques that leverage the photothermal effect, such as photoacoustic (PA) imaging. We introduce a highly reproducible synthesis route to monodisperse sub-100 nm Au nanoshells with an absorption-dominant optical response. Au nanoshells with 48 nm SiO2 cores and 7 nm Au shells show a 14-fold increase in their volumetric absorption coefficient compared to commercial Au nanoshells with dimensions commonly used in nanomedicine. PA imaging with Au nanoshell contrast agents showed a 50% improvement in imaging depth for sub-100 nm Au nanoshells compared with the smallest commercially available nanoshells in a turbid phantom. Furthermore, the high PA signal at low fluences, enabled by sub-100 nm nanoshells, will aid the deployment of low-cost, low-fluence light-emitting diodes for PA imaging.
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Affiliation(s)
- Luis D.
B. Manuel
- Gordon
and Mary Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Vinoin Devpaul Vincely
- Department
of Biomedical Engineering, Tulane University, New Orleans, Louisiana 70118, United States
| | - Carolyn L. Bayer
- Department
of Biomedical Engineering, Tulane University, New Orleans, Louisiana 70118, United States
| | - Kevin M. McPeak
- Gordon
and Mary Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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11
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Domenis N, Grobas Illobre P, Marsili M, Stener M, Toffoli D, Coccia E. Time Evolution of Plasmonic Features in Pentagonal Ag Clusters. Molecules 2023; 28:5671. [PMID: 37570641 PMCID: PMC10420145 DOI: 10.3390/molecules28155671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/15/2023] [Accepted: 07/19/2023] [Indexed: 08/13/2023] Open
Abstract
In the present work, we apply recently developed real-time descriptors to study the time evolution of plasmonic features of pentagonal Ag clusters. The method is based on the propagation of the time-dependent Schrödinger equation within a singly excited TDDFT ansatz. We use transition contribution maps (TCMs) and induced density to characterize the optical longitudinal and transverse response of such clusters, when interacting with pulses resonant with the low-energy (around 2-3 eV, A1) size-dependent or the high-energy (around 4 eV, E1) size-independent peak. TCMs plots on the analyzed clusters, Ag25+ and Ag43+ show off-diagonal peaks consistent with a plasmonic response when a longitudinal pulse resonant at A1 frequency is applied, and dominant diagonal spots, typical of a molecular transition, when a transverse E1 pulse is employed. Induced densities confirm this behavior, with a dipole-like charge distribution in the first case. The optical features show a time delay with respect to the evolution of the external pulse, consistent with those found in the literature for real-time TDDFT calculations on metal clusters.
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Affiliation(s)
- Nicola Domenis
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via L Giorgieri 1, 34127 Trieste, Italy
| | | | - Margherita Marsili
- Dipartimento di Fisica e Astronomia “Augusto Righi”, University of Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy
| | - Mauro Stener
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via L Giorgieri 1, 34127 Trieste, Italy
| | - Daniele Toffoli
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via L Giorgieri 1, 34127 Trieste, Italy
| | - Emanuele Coccia
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via L Giorgieri 1, 34127 Trieste, Italy
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12
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Ellis M, Pant U, Lou-Franco J, Logan N, Cao C. Directed Assembly of Au Nanostar@Ag Satellite Nanostructures for SERS-Based Sensing of Hg 2+ Ions. ACS APPLIED NANO MATERIALS 2023; 6:10431-10440. [PMID: 37384129 PMCID: PMC10294701 DOI: 10.1021/acsanm.3c01382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 05/19/2023] [Indexed: 06/30/2023]
Abstract
Embedding Raman reporters within nanosized gaps of metallic nanoparticles is an attractive route for surface-enhanced Raman spectroscopy (SERS) applications, although often this involves complex synthesis procedures that limit their practical use. Herein, we present the tip-selective direct growth of silver satellites surrounding gold nanostars (AuNSt@AgSAT), mediated by a dithiol Raman reporter 1,4-benzenedithiol (BDT). We propose that BDT is embedded within nanogaps which form between the AuNSt tips and the satellites, and plays a key role in mediating the satellite growth. Not only proposing a rationale for the mechanistic growth of the AuNSt@AgSAT, we also demonstrate an example for its use for the detection of Hg2+ ions in water. The presence of Hg2+ resulted in amalgamation of the AuNSt@AgSAT, which altered both its structural morphology and Raman enhancement properties. This provides a basis for the detection where the Raman intensity of BDT is inversely proportional to the Hg2+ concentrations. As a result, Hg2+ could be detected at concentrations as low as 0.1 ppb. This paper not only provides important mechanistic insight into the tip-selective direct growth of the anisotropic nanostructure but also proposes its excellent Raman enhancement capability for bioimaging as well as biological and chemical sensing applications.
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13
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Kandathil V, Manoj N. Advances in CO 2 utilization employing anisotropic nanomaterials as catalysts: a review. Front Chem 2023; 11:1175132. [PMID: 37304687 PMCID: PMC10248019 DOI: 10.3389/fchem.2023.1175132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 05/18/2023] [Indexed: 06/13/2023] Open
Abstract
Anisotropic nanomaterials are materials with structures and properties that vary depending on the direction in which they are measured. Unlike isotropic materials, which exhibit uniform physical properties in all directions, anisotropic materials have different mechanical, electrical, thermal, and optical properties in different directions. Examples of anisotropic nanomaterials include nanocubes, nanowires, nanorods, nanoprisms, nanostars, and so on. These materials have unique properties that make them useful in a variety of applications, such as electronics, energy storage, catalysis, and biomedical engineering. One of the key advantages of anisotropic nanomaterials is their high aspect ratio, which refers to the ratio of their length to their width, which can enhance their mechanical and electrical properties, making them suitable for use in nanocomposites and other nanoscale applications. However, the anisotropic nature of these materials also presents challenges in their synthesis and processing. For example, it can be difficult to align the nanostructures in a specific direction to impart modulation of a specific property. Despite these challenges, research into anisotropic nanomaterials continues to grow, and scientists are working to develop new synthesis methods and processing techniques to unlock their full potential. Utilization of carbon dioxide (CO2) as a renewable and sustainable source of carbon has been a topic of increasing interest due to its impact on reducing the level of greenhouse gas emissions. Anisotropic nanomaterials have been used to improve the efficiency of CO2 conversion into useful chemicals and fuels using a variety of processes such as photocatalysis, electrocatalysis, and thermocatalysis. More study is required to improve the usage of anisotropic nanomaterials for CO2 consumption and to scale up these technologies for industrial use. The unique properties of anisotropic nanomaterials, such as their high surface area, tunable morphology, and high activity, make them promising catalysts for CO2 utilization. This review article discusses briefly about various approaches towards the synthesis of anisotropic nanomaterials and their applications in CO2 utilization. The article also highlights the challenges and opportunities in this field and the future direction of research.
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Halford GC, Personick ML. Bridging Colloidal and Electrochemical Nanoparticle Growth with In Situ Electrochemical Measurements. Acc Chem Res 2023; 56:1228-1238. [PMID: 37140656 DOI: 10.1021/acs.accounts.3c00112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
ConspectusProspective applications involving the electrification of industrial chemical processes and electrical energy to chemical fuels interconversion as part of the energy transition to renewable energy sources have led to an increasing need for highly tailored nanostructures immobilized on electrode surfaces. Control of surface facet structure across material compositions is of particular importance for ensuring performance in such applications. Colloidal methods for producing shaped nanoparticles in solution are abundant, particularly for noble metals. However, significant technical challenges remain with respect to rationally designing syntheses for the novel compositions and morphologies required to sustainably enable the above technological advances as well as in developing methods for uniformly and reproducibly dispersing colloidally synthesized nanostructures on electrode surfaces. The direct synthesis of nanoparticles on electrodes using chemical reduction approaches remains challenging, though recent advances have been made for certain materials and structures. Electrochemical nanoparticle synthesis─where an applied current or potential instead of a chemical reducing agent drives the redox chemistry of nanoparticle growth─is poised to play an important role in advancing the fabrication of nanostructured electrodes. Specifically, this Account focuses on the colloidal-inspired design of electrochemical syntheses and the interplay between colloidal and electrochemical approaches in terms of understanding the fundamental chemical reaction mechanisms of nanoparticle growth. An initial discussion of the development of electrochemical particle syntheses that incorporate colloidal synthetic tools highlights the promising emergent capabilities that result from blending these two approaches. Furthermore, it demonstrates how existing colloidal syntheses can be directly translated to electrochemical growth on a conductive surface using real-time electrochemical measurements of the chemistry of the growth solution. Measuring the open circuit potential of a colloidal synthesis over time and then replicating that measured potential during electrochemical deposition leads to the formation of the same nanoparticle shape. These in situ open circuit and chronopotentiometric measurements also give fundamental insight about the changing chemical environment during particle growth. We highlight how these time-resolved electrochemical measurements, as well as correlated spectroelectrochemical monitoring of particle formation kinetics, enable the extraction of information regarding mechanisms of particle formation that is difficult to obtain using other approaches. This information can be translated back into colloidal synthesis design via a directed, intentional approach to synthetic development. We additionally explore the added flexibility of synthetic design for methods involving electrochemically driven reduction as compared to the use of chemical reducing agents. The Account concludes with a brief perspective on potential future directions in both fundamental studies and synthetic development enabled by this emerging integrated electrochemical approach.
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Affiliation(s)
- Gabriel C Halford
- Department of Chemistry, Wesleyan University, Middletown, Connecticut 06459, United States
| | - Michelle L Personick
- Department of Chemistry, Wesleyan University, Middletown, Connecticut 06459, United States
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15
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Cheng H, Wang C, Qin D, Xia Y. Galvanic Replacement Synthesis of Metal Nanostructures: Bridging the Gap between Chemical and Electrochemical Approaches. Acc Chem Res 2023; 56:900-909. [PMID: 36966410 PMCID: PMC10077583 DOI: 10.1021/acs.accounts.3c00067] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2023]
Abstract
ConspectusGalvanic replacement synthesis involves oxidation and dissolution of atoms from a substrate while the salt precursor to another material with a higher reduction potential is reduced and deposited on the substrate. The driving force or spontaneity of such a synthesis comes from the difference in reduction potential between the redox pairs involved. Both bulk and micro/nanostructured materials have been explored as substrates for galvanic replacement synthesis. The use of micro/nanostructured materials can significantly increase the surface area, offering immediate advantages over the conventional electrosynthesis. The micro/nanostructured materials can also be intimately mixed with the salt precursor in a solution phase, resembling the setting of a typical chemical synthesis. The reduced material tends to be directly deposited on the surface of the substrate, just like the situation in an electrosynthesis. Different from an electrosynthesis where the two electrodes are spatially separated by an electrolyte solution, the cathodes and anodes are situated on the same surface, albeit at different sites, even for a micro/nanostructured substrate. Since the oxidation and dissolution reactions occur at sites different from those for reduction and deposition reactions, one can control the growth pattern of the newly deposited atoms on the same surface of a substrate to access nanostructured materials with diverse and controllable compositions, shapes, and morphologies in a single step. Galvanic replacement synthesis has been successfully applied to different types of substrates, including those made of crystalline and amorphous materials, as well as metallic and nonmetallic materials. Depending on the substrate involved, the deposited material can take different nucleation and growth patterns, resulting in diverse but well-controlled nanomaterials sought for a variety of studies and applications.In this Account, we recapitulate our efforts over the past two decades in fabricating metal nanostructures for a broad range of applications by leveraging the unique capability of galvanic replacement synthesis. We begin with a brief introduction to the fundamentals of galvanic replacement between metal nanocrystals and salt precursors, followed by a discussion of the roles played by surface capping agents in achieving site-selected carving and deposition for the fabrication of various bimetallic nanostructures. Two examples based on the Ag-Au and Pd-Pt systems are selected to illustrate the concept and mechanism. We then highlight our recent work on the galvanic replacement synthesis involving nonmetallic substrates, with a focus on the protocol, mechanistic understanding, and experimental control for the fabrication of Au- and Pt-based nanostructures with tunable morphologies. Finally, we showcase the unique properties and applications of nanostructured materials derived from galvanic replacement reactions for biomedicine and catalysis. We also offer some perspectives on the challenges and opportunities in this emerging field of research.
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Affiliation(s)
- Haoyan Cheng
- School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, P. R. China
| | - Chenxiao Wang
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Dong Qin
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Younan Xia
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
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16
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Manjubaashini N, Daniel Thangadurai T. Unaided-eye detection of diverse Metal ions by AuNPs-based Nanocomposites: A Review. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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17
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Bhatti MM, Sait SM, Ellahi R. Magnetic Nanoparticles for Drug Delivery through Tapered Stenosed Artery with Blood Based Non-Newtonian Fluid. Pharmaceuticals (Basel) 2022; 15:1352. [PMID: 36355524 PMCID: PMC9694980 DOI: 10.3390/ph15111352] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 10/29/2022] [Accepted: 10/30/2022] [Indexed: 10/21/2023] Open
Abstract
Nanoparticles play an essential role in biomedical applications. A most promising area in nanomedicine is drug targeting which is done with the aid of magnetized nanoparticles. In this study, the hemodynamics of hybrid nanofluid flow with gold and copper nanoparticles suspended in it is investigated. This research primarily focuses on magnetic drug delivery which is propagated through a tapered stenosed artery under three situations, including converging, diverging, and non-tapering arteries. To explore the rheological characteristics of blood, a Sutterby fluid, which is a non-Newtonian fluid, is postulated. The energy equation also incorporates the effects of the magnetic field and joule heating, as well as the viscous dissipation function. Lubrication theory provides a mathematical framework for model formulation. The hypothesized modeling is simplified to a set of nonlinear differential equations that are then solved using a perturbation method up to the second order of approximation. Graphs are used to describe the outcomes of different evolving parameters. The Sutterby fluid parameter opposes the flow negligibly, whereas the Hartmann number and thermal Grashof number strengthen the flow field. Copper nanoparticles (in the absence of gold nanoparticles) are observed to deplete the thermal profile substantially more than gold nanoparticles. Nevertheless, the thermal profile is enhanced by the presence of both nanoparticles (hybrid nanofluids). For greater values of the Sutterby fluid parameter, the wall shear stress has been observed to rise considerably, whereas the inverse is true for the Hartmann number and the thermal Grashof number. The present results have been improved to give significant information for biomedical scientists who are striving to study blood flow in stenosis situations, as well as for those who will find the knowledge valuable in the treatment of different diseases.
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Affiliation(s)
- Muhammad Mubashir Bhatti
- College of Mathematics and Systems Science, Shandong University of Science and Technology, Qingdao 266590, China
| | - Sadiq M. Sait
- Center for Communications and IT Research, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Rahmat Ellahi
- Center for Modeling & Computer Simulation, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
- Department of Mathematics & Statistics, Faculty of Basic and Applied Sciences, International Islamic University, Islamabad 44000, Pakistan
- Fulbright Fellow Department of Mechanical Engineering, University of California Riverside, Riverside, CA 92521, USA
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18
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Pasparakis G. Recent developments in the use of gold and silver nanoparticles in biomedicine. WIRES NANOMEDICINE AND NANOBIOTECHNOLOGY 2022; 14:e1817. [PMID: 35775611 PMCID: PMC9539467 DOI: 10.1002/wnan.1817] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/20/2022] [Accepted: 04/22/2022] [Indexed: 12/18/2022]
Abstract
Gold and silver nanoparticles (NPs) are widely used in the biomedical research both in the therapeutic and the sensing/diagnostics fronts. Both metals share some common optical properties with surface plasmon resonance being the most widely exploited property in therapeutics and diagnostics. Au NPs exhibit excellent light‐to‐heat conversion efficiencies and hence have found applications primarily in precision oncology, while Ag NPs have excellent antibacterial properties which can be harnessed in biomaterials' design. Both metals constitute excellent biosensing platforms owing to their plasmonic properties and are now routinely used in various optical platforms. The utilization of Au and Ag NPs in the COVID‐19 pandemic was rapidly expanded mostly in biosensing and point‐of‐care platforms and to some extent in therapeutics. In this review article, the main physicochemical properties of Au and Ag NPs are discussed with selective examples from the recent literature. This article is categorized under:Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease Diagnostic Tools > In Vitro Nanoparticle‐Based Sensing Nanotechnology Approaches to Biology > Nanoscale Systems in Biology
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Affiliation(s)
- George Pasparakis
- Department of Chemical Engineering University of Patras Patras Greece
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19
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Saha P, Akter R, Shah SS, Mahfoz W, Aziz MA, Ahammad AJS. Gold Nanomaterials and their Composites as Electrochemical Sensing Platforms for Nitrite Detection. Chem Asian J 2022; 17:e202200823. [PMID: 36039466 DOI: 10.1002/asia.202200823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/29/2022] [Indexed: 02/01/2023]
Abstract
Nitrite is one of the abundant toxic components existing in the environment and is likely to have a great potential to affect human health badly. For that reason, it has become crucial to build a reliable nitrite detection method. In recent years, several nitrite monitoring systems have been proposed. Compared with traditional analytical strategies, the electrochemical approach has a bunch of advantages, including low cost, rapid response, easy operation, simplicity, etc. In this case, noble metal nanomaterials, especially Au-based nanomaterials, have attracted attention in electrode modification because of higher catalytic activity, facile mass transfer, and broad active area for determining nitrite. This review is based on the state-of-the-art, which includes a variety of nanomaterials that have been coupled with AuNPs for the creation of nanocomposites, and the construction as well as development of electrochemical sensors for nitrite detection over the last few years (2016-2022). A background study on synthesizing different morphological AuNPs and nanocomposites has also been introduced. The fabrication methods and sensing capabilities of modified electrodes are given special consideration.
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Affiliation(s)
- Protity Saha
- Jagannath University, Chemistry, Department of Chemistry, 1100, BANGLADESH
| | - Riva Akter
- Jagannath University, Chemistry, Department of Chemistry, 1100, BANGLADESH
| | - Syed Shaheen Shah
- King Fahd University of Petroleum & Minerals, Physics Department, Building 6, 31261, Dhahran, SAUDI ARABIA
| | - Wael Mahfoz
- King Fahd University of Petroleum & Minerals, Chemistry, Chemistry Department, 31261, Dhahran, SAUDI ARABIA
| | - Md Abdul Aziz
- King Fahd University of Petroleum & Minerals, Center of Research excellence in Nanotechnology, KFUPM Box # 81, 31261, Dhahran, SAUDI ARABIA
| | - A J Saleh Ahammad
- Jagannath University, Chemistry, Department of Chemistry, 1100, BANGLADESH
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20
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Li M, Wei J, Song Y, Chen F. Gold nanocrystals: optical properties, fine-tuning of the shape, and biomedical applications. RSC Adv 2022; 12:23057-23073. [PMID: 36090439 PMCID: PMC9380198 DOI: 10.1039/d2ra04242h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 07/29/2022] [Indexed: 02/06/2023] Open
Abstract
Noble metal nanomaterials with special physical and chemical properties have attracted considerable attention in the past decades. In particular, Au nanocrystals (NCs), which possess high chemical inertness and unique surface plasmon resonance (SPR), have attracted extensive research interest. In this study, we review the properties and preparation of Au NCs with different morphologies as well as their important applications in biological detection. The preparation of Au NCs with different shapes by many methods such as seed-mediated growth method, seedless synthesis, polyol process, ultrasonic method, and hydrothermal treatment has already been introduced. In the seed-mediated growth method, the influence factors in determining the final shape of Au NCs are discussed. Au NCs, which show significant size-dependent color differences are proposed for preparing biological probes to detect biomacromolecules such as DNA and protein, while probe conjugate molecules serves as unique coupling agents with a target. Particularly, Au nanorods (NRs) have some unique advantages in the application of biological probes and photothermal cancer therapy compared to Au nanoparticles (NPs).
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Affiliation(s)
- Meng Li
- Resources and Environment Innovation Institute, Shandong Jianzhu University Jinan 250101 P. R. China
| | - Jianlu Wei
- Department of Orthopaedic Surgery, Qilu Hospital Shandong University 107 Wenhua Xi Road Jinan 250012 P. R. China
| | - Yang Song
- Resources and Environment Innovation Institute, Shandong Jianzhu University Jinan 250101 P. R. China
| | - Feiyong Chen
- Resources and Environment Innovation Institute, Shandong Jianzhu University Jinan 250101 P. R. China
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21
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Wang X, Liu Y, Xu Z. On the deformation of spherical Au nanoparticles by slow highly charged Xe ions. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110455] [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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22
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Moulik SP, Chakraborty I, Rakshit AK. Role of surface‐active materials (amphiphiles and surfactants) in the formation of nanocolloidal dispersions, and their applications. J SURFACTANTS DETERG 2022. [DOI: 10.1002/jsde.12612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Satya Priya Moulik
- Center for Surface Science, Department of Chemistry Jadavpur University Kolkata India
| | | | - Animesh Kumar Rakshit
- Indian Society for Surface Science and Technology, Department of Chemistry Jadavpur University Kolkata India
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23
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Maldonado-Ortega DA, Martínez-Castañón G, Palestino G, Navarro-Tovar G, Gonzalez C. Two Methods of AuNPs Synthesis Induce Differential Vascular Effects. The Role of the Endothelial Glycocalyx. Front Med (Lausanne) 2022; 9:889952. [PMID: 35847820 PMCID: PMC9277019 DOI: 10.3389/fmed.2022.889952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 05/02/2022] [Indexed: 11/13/2022] Open
Abstract
AuNPs are synthesized through several methods to tune their physicochemical properties. Although AuNPs are considered biocompatible, a change in morphology or properties can modify their biological impact. In this work, AuNPs (~12 to 16 nm) capping with either sodium citrate (CA) or gallic acid (GA) were evaluated in a rat aorta ex vivo model, which endothelial inner layer surface is formed by glycocalyx (hyaluronic acid, HA, as the main component), promoting vascular processes, most of them dependent on nitric oxide (NO) production. Results showed that contractile effects were more evident with AuNPsCA, while dilator effects predominated with AuNPsGA. Furthermore, treatments with AuNPsCA and AuNPsGA in the presence or absence of glycocalyx changed the NO levels, differently. This work contributes to understanding the biological effects of AuNPs with different capping agents, as well as the key role that of HA in the vascular effects induced by AuNPs in potential biomedical applications.
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Affiliation(s)
| | | | - Gabriela Palestino
- Facultad de Ciencias Quimicas, Universidad Autonoma de San Luis Potosi, San Luis Potosi, Mexico
- Centro de Investigacion en Ciencias de la Salud y Biomedicina, Universidad Autonoma de San Luis Potosi, San Luis Potosi, Mexico
| | - Gabriela Navarro-Tovar
- Facultad de Ciencias Quimicas, Universidad Autonoma de San Luis Potosi, San Luis Potosi, Mexico
- Centro de Investigacion en Ciencias de la Salud y Biomedicina, Universidad Autonoma de San Luis Potosi, San Luis Potosi, Mexico
- Consejo Nacional de Ciencia y Tecnología, Benito Juarez, Mexico
| | - Carmen Gonzalez
- Facultad de Ciencias Quimicas, Universidad Autonoma de San Luis Potosi, San Luis Potosi, Mexico
- *Correspondence: Carmen Gonzalez
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24
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Spirin MG, Brichkin SB, Lizunova AA, Razumov VF. Synthesis of Gold Nanorods in a Binary Mixture of Cationic Surfactants. COLLOID JOURNAL 2022. [DOI: 10.1134/s1061933x22010136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Photothermal Conversion Profiling of Large-Scaled Synthesized Gold Nanorods Using Binary Surfactant with Hydroquinone as a Reducing Agent. NANOMATERIALS 2022; 12:nano12101723. [PMID: 35630943 PMCID: PMC9145525 DOI: 10.3390/nano12101723] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/04/2022] [Accepted: 05/16/2022] [Indexed: 12/10/2022]
Abstract
Photothermal application of gold nanorods (AuNRs) is widely increasing because of their good photothermal conversion efficiency (PCE) due to local surface plasmon resonance. However, the high concentration of hexadecyltrimethylammonium bromide used in the synthesis is a concern. Moreover, the mild and commonly used reducing agent-ascorbic acid does not reduce the Au(I) to A(0) entirely, resulting in a low yield of gold nanorods. Herein we report for the first time the PCE of large-scaled synthesized AuNRs using the binary surfactant seed-mediated method with hydroquinone (HQ) as the reducing agent. The temporal evolution of the optical properties and morphology was investigated by varying the Ag concentration, HQ concentration, HCl volumes, and seed solution volume. The results showed that the seed volume, HQ concentration, and HCl volume played a significant role in forming mini-AuNRs absorbing in the 800 nm region with a shape yield of 87.7%. The as-synthesized AuNRs were successfully up-scaled to a larger volume based on the optimum synthetic conditions followed by photothermal profiling. The photothermal profiling analysis showed a temperature increase of more than 54.2 °C at 2.55 W cm−2 at a low optical density (OD) of 0.160 after 630 s irradiation, with a PCE of approximately 21%, presenting it as an ideal photothermal agent.
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26
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Sahu AK, Raj S. Understanding the Coupling Mechanism of Gold Nanostructures by Finite-Difference Time-Domain Method. INTERNATIONAL JOURNAL OF NANOSCIENCE 2022. [DOI: 10.1142/s0219581x22500077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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27
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Liu Z, Oviedo MB, Wong BM, Aikens CM. Plasmon-induced excitation energy transfer in silver nanoparticle dimers: A real-time TDDFTB investigation. J Chem Phys 2022; 156:154705. [PMID: 35459307 DOI: 10.1063/5.0082960] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Using real-time quantum dynamics calculations, we perform theoretical investigations of light-induced interactions and electronic excitation transfer in a silver nanoparticle dimer. Real-time time-dependent density functional tight-binding (RT-TDDFTB) calculations provide details of the quantum dynamical processes at an electronic/atomistic level with attosecond resolution. The computational efficiency of RT-TDDFTB allows us to examine electronic dynamics up to picosecond time scales. With time scales varying over six orders of magnitude, we provide insight into interactions between the nanoparticle and laser and between nanoparticles. Our results show that the coupling between nanoparticle monomers is dependent on the separation distance between the nanoparticles in the dimer. As the interparticle distance is varied, the dipole-dipole interactions and electronic excitation transfer mechanisms are markedly different. At large distances (from 50 to 20 Å), the energy transfer from NP1 to NP2 becomes more efficient as the interparticle distance decreases. The total dipole moment of the Ag14 nanoparticle dimer increases linearly at an interparticle distance of 20 Å and reaches its maximum after 1.2 ps. The electronic excitation transfer is also the most efficient at 20 Å. At short distances, back-transfer effects reduce the ability of the dimer and NP1 to accept energy from the incident electric field. We attribute the distance-dependent features of the nanoparticle dimer to the beating between the laser acting on NP1 and the back transfer from NP2 to NP1.
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Affiliation(s)
- Zhen Liu
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, USA
| | - M Belén Oviedo
- Department of Chemical and Environmental Engineering and Materials Science and Engineering Program, University of California-Riverside, Riverside, California 92521, USA
| | - Bryan M Wong
- Department of Chemical and Environmental Engineering and Materials Science and Engineering Program, University of California-Riverside, Riverside, California 92521, USA
| | - Christine M Aikens
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, USA
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28
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Electrochemical Synthesis of Plasmonic Nanostructures. Molecules 2022; 27:molecules27082485. [PMID: 35458688 PMCID: PMC9027786 DOI: 10.3390/molecules27082485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/01/2022] [Accepted: 04/08/2022] [Indexed: 11/23/2022] Open
Abstract
Thanks to their tunable and strong interaction with light, plasmonic nanostructures have been investigated for a wide range of applications. In most cases, controlling the electric field enhancement at the metal surface is crucial. This can be achieved by controlling the metal nanostructure size, shape, and location in three dimensions, which is synthetically challenging. Electrochemical methods can provide a reliable, simple, and cost-effective approach to nanostructure metals with a high degree of geometrical freedom. Herein, we review the use of electrochemistry to synthesize metal nanostructures in the context of plasmonics. Both template-free and templated electrochemical syntheses are presented, along with their strengths and limitations. While template-free techniques can be used for the mass production of low-cost but efficient plasmonic substrates, templated approaches offer an unprecedented synthetic control. Thus, a special emphasis is given to templated electrochemical lithographies, which can be used to synthesize complex metal architectures with defined dimensions and compositions in one, two and three dimensions. These techniques provide a spatial resolution down to the sub-10 nanometer range and are particularly successful at synthesizing well-defined metal nanoscale gaps that provide very large electric field enhancements, which are relevant for both fundamental and applied research in plasmonics.
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29
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Zare I, Yaraki MT, Speranza G, Najafabadi AH, Haghighi AS, Nik AB, Manshian BB, Saraiva C, Soenen SJ, Kogan MJ, Lee JW, Apollo NV, Bernardino L, Araya E, Mayer D, Mao G, Hamblin MR. Gold nanostructures: synthesis, properties, and neurological applications. Chem Soc Rev 2022; 51:2601-2680. [PMID: 35234776 DOI: 10.1039/d1cs01111a] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent advances in technology are expected to increase our current understanding of neuroscience. Nanotechnology and nanomaterials can alter and control neural functionality in both in vitro and in vivo experimental setups. The intersection between neuroscience and nanoscience may generate long-term neural interfaces adapted at the molecular level. Owing to their intrinsic physicochemical characteristics, gold nanostructures (GNSs) have received much attention in neuroscience, especially for combined diagnostic and therapeutic (theragnostic) purposes. GNSs have been successfully employed to stimulate and monitor neurophysiological signals. Hence, GNSs could provide a promising solution for the regeneration and recovery of neural tissue, novel neuroprotective strategies, and integrated implantable materials. This review covers the broad range of neurological applications of GNS-based materials to improve clinical diagnosis and therapy. Sub-topics include neurotoxicity, targeted delivery of therapeutics to the central nervous system (CNS), neurochemical sensing, neuromodulation, neuroimaging, neurotherapy, tissue engineering, and neural regeneration. It focuses on core concepts of GNSs in neurology, to circumvent the limitations and significant obstacles of innovative approaches in neurobiology and neurochemistry, including theragnostics. We will discuss recent advances in the use of GNSs to overcome current bottlenecks and tackle technical and conceptual challenges.
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Affiliation(s)
- Iman Zare
- Research and Development Department, Sina Medical Biochemistry Technologies Co. Ltd., Shiraz 7178795844, Iran
| | | | - Giorgio Speranza
- CMM - FBK, v. Sommarive 18, 38123 Trento, Italy.,IFN - CNR, CSMFO Lab., via alla Cascata 56/C Povo, 38123 Trento, Italy.,Department of Industrial Engineering, University of Trento, v. Sommarive 9, 38123 Trento, Italy
| | - Alireza Hassani Najafabadi
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, CA 90064, USA.,Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Alireza Shourangiz Haghighi
- Department of Mechanical Engineering, Shiraz University of Technology, Modarres Boulevard, 13876-71557, Shiraz, Iran
| | - Amirala Bakhshian Nik
- Department of Biomedical Engineering, Florida International University, Miami, FL 33174, USA
| | - Bella B Manshian
- Translational Cell and Tissue Research Unit, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
| | - Cláudia Saraiva
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7 Avenue des Hauts-Fourneaux, 4362 Esch-sur-Alzette, Luxembourg.,Health Sciences Research Centre (CICS-UBI), University of Beira Interior, Rua Marques d'Avila e Bolama, 6201-001 Covilha, Portugal
| | - Stefaan J Soenen
- NanoHealth and Optical Imaging Group, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
| | - Marcelo J Kogan
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas, Departamento de Química Farmacológica y Toxicológica, Universidad de Chile, 8380492 Santiago, Chile
| | - Jee Woong Lee
- Department of Medical Sciences, Clinical Neurophysiology, Uppsala University, Uppsala, SE-751 23, Sweden
| | - Nicholas V Apollo
- Center for Neuroengineering and Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.,School of Physics, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Liliana Bernardino
- Health Sciences Research Centre (CICS-UBI), University of Beira Interior, Rua Marques d'Avila e Bolama, 6201-001 Covilha, Portugal
| | - Eyleen Araya
- Departamento de Ciencias Quimicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Av. Republica 275, Santiago, Chile
| | - Dirk Mayer
- Institute of Biological Information Processing, Bioelectronics (IBI-3), Forschungszentrum Jülich GmbH, Germany
| | - Guangzhao Mao
- School of Chemical Engineering, University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia
| | - Michael R Hamblin
- Laser Research Center, University of Johannesburg, Doorfontein 2028, South Africa.
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30
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Qamar M, Abbas G, Afzaal M, Naz MY, Ghuffar A, Irfan M, Legutko S, Jozwik J, Zawada-Michalowska M, Ghanim AAJ, Rahman S, Niazi UM, Jalalah M, Alkahtani FS, Khan MKA, Kosicka E. Gold Nanorods for Doxorubicin Delivery: Numerical Analysis of Electric Field Enhancement, Optical Properties and Drug Loading/Releasing Efficiency. MATERIALS 2022; 15:ma15051764. [PMID: 35268995 PMCID: PMC8911263 DOI: 10.3390/ma15051764] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/12/2022] [Accepted: 02/19/2022] [Indexed: 12/28/2022]
Abstract
The optical properties and electric field enhancement of gold nanorods for different cases were investigated in this study. The numerical analysis was carried out to understand the functionality and working of gold nanorods, while the experimental portion of the work was focused on the efficiency of gold nanorods for targeted drug delivery. COMSOL Multiphysics was used for numerical analysis. The theoretical results suggest the use of gold nanorods (AuNRs) for anticancer applications. The resonance peaks for gold nanorods of 10 nm diameter were observed at 560 nm. The resonance peaks shifted towards longer wavelengths with an increase in nanorod size. The resonance peaks showed a shift of 140 nm with a change in nanorod length from 25 to 45 nm. On the experimental side, 22 nm, 35 nm and 47 nm long gold nanorods were produced using the seed-mediated growth method. The surface morphology of the nanorods, as well as their optical characteristics, were characterized. Later, gold nanorods were applied to the targeted delivery of the doxorubicin drug. Gold nanorods showed better efficiency for doxorubicin drug loading time, release time, loading temperature, and release temperature. These results reveal that AuNRs@DA possess good ability to load and deliver the drug directly to the tumorous cells since these cells show high temperature and acidity.
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Affiliation(s)
- Muhammad Qamar
- Department of Physics, Riphah International University Faisalabad Campus, Faisalabad 44000, Pakistan; (M.Q.); (M.A.); (A.G.)
| | - Ghulam Abbas
- Department of Physics, Riphah International University Faisalabad Campus, Faisalabad 44000, Pakistan; (M.Q.); (M.A.); (A.G.)
- Correspondence:
| | - Muhammad Afzaal
- Department of Physics, Riphah International University Faisalabad Campus, Faisalabad 44000, Pakistan; (M.Q.); (M.A.); (A.G.)
| | - Muhammad Y. Naz
- Department of Physics, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan;
| | - Abdul Ghuffar
- Department of Physics, Riphah International University Faisalabad Campus, Faisalabad 44000, Pakistan; (M.Q.); (M.A.); (A.G.)
| | - Muhammad Irfan
- Electrical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 11001, Saudi Arabia; (M.I.); (S.R.); (M.J.); (F.S.A.)
| | - Stanislaw Legutko
- Faculty of Mechanical Engineering, Poznan University of Technology, 60-965 Poznan, Poland;
| | - Jerzy Jozwik
- Faculty of Mechanical Engineering, Lublin University of Technology, 20-618 Lublin, Poland; (J.J.); (M.Z.-M.); (E.K.)
| | - Magdalena Zawada-Michalowska
- Faculty of Mechanical Engineering, Lublin University of Technology, 20-618 Lublin, Poland; (J.J.); (M.Z.-M.); (E.K.)
| | - Abdulnour Ali Jazem Ghanim
- Civil Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 61441, Saudi Arabia;
| | - Saifur Rahman
- Electrical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 11001, Saudi Arabia; (M.I.); (S.R.); (M.J.); (F.S.A.)
| | - Usama M. Niazi
- Department of Mechanical Engineering Technology, National Skills University Islamabad, Islamabad 44000, Pakistan;
| | - Mohammed Jalalah
- Electrical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 11001, Saudi Arabia; (M.I.); (S.R.); (M.J.); (F.S.A.)
| | - Fahad Salem Alkahtani
- Electrical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 11001, Saudi Arabia; (M.I.); (S.R.); (M.J.); (F.S.A.)
| | - Mohammad K. A. Khan
- Mechanical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 11001, Saudi Arabia;
| | - Ewelina Kosicka
- Faculty of Mechanical Engineering, Lublin University of Technology, 20-618 Lublin, Poland; (J.J.); (M.Z.-M.); (E.K.)
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31
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Single-Step Fabrication and Characterization of Nanoscale Cu Thinfilms for Optoelectronic Applications. CRYSTALS 2022. [DOI: 10.3390/cryst12010062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Nanostructured materials with optical transmittance with sufficient electrical conductivity are feasible for the transparent electrical devices and optoelectronic applications. Copper (Cu) possesses inherent superior electrical conductivity. Cu thin films on glass substrates provide the basic design understanding of the transparent electrodes for humidity sensors and solar cells applications. To understand the fundamental fabrication and electrical properties, a single-step facile fabrication approach was applied for Cu nanofilms through the DC sputtering method. Correlation of thickness of Cu nanofilms with optical and electrical properties was established. Parameters such as current, voltage, vacuum pressure, and time of coating were varied to develop different thickness of metal coating. Under optimized conditions of 10−1 torr vacuum, 1.45 KV voltage, and 4–6 min coating time, a conductive path is successfully established. A 1 min coated sample demonstrated resistance of 4000 ohm and conductance of a 6 min coated sample was raised to 56 m-mho. A higher surge of voltage assisted the production of relatively thick and uniform coatings with the crystallite size of 12 nm. The average coating thickness of 19.8 nm and roughness of 4.5 nm was obtained for a 5 min coated sample through AFM analysis. Further, it was observed that uniform nanostructured coating is essential to establish a mean free path of coated particles.
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32
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Xie L, Zhang X, Chu C, Dong Y, Zhang T, Li X, Liu G, Cai W, Han S. Preparation, toxicity reduction and radiation therapy application of gold nanorods. J Nanobiotechnology 2021; 19:454. [PMID: 34963479 PMCID: PMC8715590 DOI: 10.1186/s12951-021-01209-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 12/14/2021] [Indexed: 12/28/2022] Open
Abstract
Gold nanorods (GNRs) have a broad application prospect in biomedical fields because of their unique properties and controllable surface modification. The element aurum (Au) with high atomic number (high-Z) render GNRs ideal radiosensitive materials for radiation therapy and computed tomography (CT) imaging. Besides, GNRs have the capability of efficiently converting light energy to heat in the near-infrared (NIR) region for photothermal therapy. Although there are more and more researches on GNRs for radiation therapy, how to improve their biocompatibility and how to efficiently utilize them for radiation therapy should be further studied. This review will focuse on the research progress regarding the preparation and toxicity reduction of GNRs, as well as GNRs-mediated radiation therapy.
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Affiliation(s)
- Lina Xie
- Department of Radiation Oncology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Xujia Zhang
- Institute of Medical Engineering, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Chengchao Chu
- Eye Institute of Xiamen University, Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, School of Medicine, Xiamen University, Xiamen, 361102, Fujian, China
| | - Yingqi Dong
- Institute of Medical Engineering, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Tianzi Zhang
- Institute of Medical Engineering, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Xinyue Li
- Department of Radiation Oncology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Gang Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, Fujian, China
| | - Wen Cai
- Institute of Medical Engineering, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
| | - Suxia Han
- Department of Radiation Oncology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
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33
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Ferreira-Gonçalves T, Ferreira D, Ferreira HA, Reis CP. Nanogold-based materials in medicine: from their origins to their future. Nanomedicine (Lond) 2021; 16:2695-2723. [PMID: 34879741 DOI: 10.2217/nnm-2021-0265] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The properties of gold-based materials have been explored for centuries in several research fields, including medicine. Multiple published production methods for gold nanoparticles (AuNPs) have shown that the physicochemical and optical properties of AuNPs depend on the production method used. These different AuNP properties have allowed exploration of their usefulness in countless distinct biomedical applications over the last few years. Here we present an extensive overview of the most commonly used AuNP production methods, the resulting distinct properties of the AuNPs and the potential application of these AuNPs in diagnostic and therapeutic approaches in biomedicine.
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Affiliation(s)
- Tânia Ferreira-Gonçalves
- Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health Technologies (DFFTS), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, Lisboa, 1649-003, Portugal
| | - David Ferreira
- Comprehensive Health Research Centre (CHRC), Departamento de Desporto e Saúde, Escola de Saúde e Desenvolvimento Humano, Universidade de Évora, Largo dos Colegiais, Évora, 7000, Portugal
| | - Hugo A Ferreira
- Instituto de Biofísica e Engenharia Biomédica (IBEB), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa, 1749-016, Portugal
| | - Catarina P Reis
- Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health Technologies (DFFTS), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, Lisboa, 1649-003, Portugal.,Instituto de Biofísica e Engenharia Biomédica (IBEB), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa, 1749-016, Portugal
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34
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Zhao H, Isozaki K, Taguchi T, Yang S, Miki K. Laying down of gold nanorods monolayers on solid surfaces for surface enhanced Raman spectroscopy applications. Phys Chem Chem Phys 2021; 23:26822-26828. [PMID: 34817481 DOI: 10.1039/d1cp02497c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Laying-down gold nanorods (GNRs) of a monolayer immobilized on a solid substrate was realized with a hybrid method, a combination of three elemental technologies: surface modification, electrophoresis, and solvent evaporation. The self-assembly of CTAB-protected GNRs in the solution was induced by 0.05 mM of EDTA. The assembled GNRs were deposited in a laying-down form on the solid surface during the hybrid method. The final coverage was over 71% on the substrate with an area larger than 0.6 cm2. The spacing between the sides of the GNRs was fixed to be 4.6 ± 0.9 nm by the thermal annealing-promoted crystalline packing of the bilayer of CTAB salt-bridged with EDTA. The obtained laying-down GNRs of a monolayer on the gold substrate show a small shift of the transverse LSPR around 550-570 nm (with a width of around 100 nm) and a large red shift of the longitudinal LSPR to be 900-1050 nm (with a width of 500 nm), because of the strong electromagnetic coupling between the GNRs and gold substrate. Therefore it can be used in a wide range of wavelengths for surface enhanced Raman spectroscopy (SERS) applications. The film has a high enhancement factor with 105 for R6G.
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Affiliation(s)
- Haidong Zhao
- School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, Shan Xi, People's Republic of China.,National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. .,School of Science, State Key Laboratory for Mechanical Behavior of Materials, Ministry of Education Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, Shan Xi, People's Republic of China
| | - Katsuhiro Isozaki
- National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. .,Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Tomoya Taguchi
- National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
| | - Shengchun Yang
- School of Science, State Key Laboratory for Mechanical Behavior of Materials, Ministry of Education Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, Shan Xi, People's Republic of China
| | - Kazushi Miki
- National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
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35
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Impact of Synthesized AuNPs from Crocin Against Aggregation and Conformational Change in α-Lactalbumin. Int J Pept Res Ther 2021. [DOI: 10.1007/s10989-021-10252-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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36
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Zheng J, Cheng X, Zhang H, Bai X, Ai R, Shao L, Wang J. Gold Nanorods: The Most Versatile Plasmonic Nanoparticles. Chem Rev 2021; 121:13342-13453. [PMID: 34569789 DOI: 10.1021/acs.chemrev.1c00422] [Citation(s) in RCA: 148] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Gold nanorods (NRs), pseudo-one-dimensional rod-shaped nanoparticles (NPs), have become one of the burgeoning materials in the recent years due to their anisotropic shape and adjustable plasmonic properties. With the continuous improvement in synthetic methods, a variety of materials have been attached around Au NRs to achieve unexpected or improved plasmonic properties and explore state-of-the-art technologies. In this review, we comprehensively summarize the latest progress on Au NRs, the most versatile anisotropic plasmonic NPs. We present a representative overview of the advances in the synthetic strategies and outline an extensive catalogue of Au-NR-based heterostructures with tailored architectures and special functionalities. The bottom-up assembly of Au NRs into preprogrammed metastructures is then discussed, as well as the design principles. We also provide a systematic elucidation of the different plasmonic properties associated with the Au-NR-based structures, followed by a discussion of the promising applications of Au NRs in various fields. We finally discuss the future research directions and challenges of Au NRs.
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Affiliation(s)
- Jiapeng Zheng
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
| | - Xizhe Cheng
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
| | - Han Zhang
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
| | - Xiaopeng Bai
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
| | - Ruoqi Ai
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
| | - Lei Shao
- Beijing Computational Science Research Center, Beijing 100193, China
| | - Jianfang Wang
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
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37
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Sánchez-Iglesias A, Jenkinson K, Bals S, Liz-Marzán LM. Kinetic Regulation of the Synthesis of Pentatwinned Gold Nanorods below Room Temperature. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2021; 125:23937-23944. [PMID: 34765074 PMCID: PMC8573768 DOI: 10.1021/acs.jpcc.1c07284] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/30/2021] [Indexed: 05/14/2023]
Abstract
The synthesis of gold nanorods requires the presence of symmetry-breaking and shape-directing additives, among which bromide ions and quaternary ammonium surfactants have been reported as essential. As a result, hexadecyltrimethylammonium bromide (CTAB) has been selected as the most efficient surfactant to direct anisotropic growth. One of the difficulties arising from this selection is the low solubility of CTAB in water at room temperature, and therefore the seeded growth of gold nanorods is usually performed at 25 °C or above, which has restricted so far the analysis of kinetic effects derived from lower temperatures. We report a systematic study of the synthesis of gold nanorods from pentatwinned seeds using hexadecyltrimethylammonium chloride (CTAC) as the principal surfactant and a low concentration of bromide as shape-directing agent. Under these conditions, the synthesis can be performed at temperatures as low as 8 °C, and the corresponding kinetic effects can be studied, resulting in temperature-controlled aspect ratio tunability.
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Affiliation(s)
- Ana Sánchez-Iglesias
- CIC biomaGUNE,
Basque Research
and Technology Alliance (BRTA), 20014 Donostia-San Sebastián, Spain
- Centro
de Investigación Biomédica en Red de Bioingeniería,
Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San Sebastián, Spain
- (A.S.-I.)
| | - Kellie Jenkinson
- EMAT, University
of Antwerp, 2020 Antwerp, Belgium
- NANOlab
Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Sara Bals
- EMAT, University
of Antwerp, 2020 Antwerp, Belgium
- NANOlab
Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Luis M. Liz-Marzán
- CIC biomaGUNE,
Basque Research
and Technology Alliance (BRTA), 20014 Donostia-San Sebastián, Spain
- Centro
de Investigación Biomédica en Red de Bioingeniería,
Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San Sebastián, Spain
- Ikerbasque,
Basque Foundation for Science, 48009 Bilbao, Spain
- Email (L.M.L.-M.)
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38
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Chen H, Chen J, Zhao L, Zhu T, Yang Z. Electrochemical synthesis of colloidal lead- and bismuth-based perovskite nanocrystals. Chem Commun (Camb) 2021; 57:11553-11556. [PMID: 34664568 DOI: 10.1039/d1cc04327g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal halide perovskite nanocrystals (PNCs) have aroused worldwide research interest for optoelectronics. Herein, we report the first electrochemical approach to prepare colloidal PNCs with drastically reduced consumption of salts, solvents, and ligands. This method can be extended to prepare mixed-halide and bismuth-based PNCs by changing precursor compositions and metal components.
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Affiliation(s)
- Hushui Chen
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China.
| | - Jie Chen
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China.
| | - Liang Zhao
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China.
| | - Tingshun Zhu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China.
| | - Zhenyu Yang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China. .,Dongguan Institute, Sun Yat-sen University, Dongguan, 523808, China
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39
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Meireles IBDCJ, Cipreste MF, Gastelois PL, Macedo WADA, Gomes DA, de Sousa EMB. Synthesis and characterization of gold nanorods coated by mesoporous silica MCM-41 as a platform bioapplication in photohyperthermia. NANOTECHNOLOGY 2021; 32:505720. [PMID: 34547742 DOI: 10.1088/1361-6528/ac28db] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/21/2021] [Indexed: 06/13/2023]
Abstract
Gold nanoparticles have been widely investigated for biomedical applications due to their optical properties. These particles present the interesting feature of absorbing light when stimulated with laser radiation to generate heating. Among the possible morphologies for synthetic gold nanoparticles, gold nanorods have properties of great interest for applications in the photohyperthermia processes. Due to their morphology, gold nanorods can absorb light at longer wavelengths comprising specific regions of the electromagnetic spectrum, such as the region of the biological window, in which laser radiation has less interaction with tissues. However, these nanoparticles present limitations in biomedical applications, such as low colloidal and thermal stabilities that can be overcome by coating the gold nanorods with silica MCM-41. The silicate covering can provide greater stability for gold nanorods and allow multifunctionality in treating different diseases through photohyperthermia. This work developed a specific chemical route through seed and growth solutions to synthesize gold nanorods with controlled particle size, rod morphology, and silica covering for photohyperthermia applications. The synthesized samples were characterized through a multi-technique approach that successfully demonstrated the presence of gold nanorods inside the silica coating, presenting high stability and desirable textural and morphological characteristics for bioapplications. Furthermore, silica-coated gold nanorods exhibit high biocompatibility and great performance in generating therapeutic heating by absorbing laser radiation in the biological window range, making the system developed in this work a promising agent in photohyperthermia.
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Affiliation(s)
| | | | - Pedro Lana Gastelois
- Centro de Desenvolvimento da Tecnologia Nuclear, CDTN, 31270-901 Belo Horizonte, MG, Brazil
| | | | - Dawidson Assis Gomes
- Departamento de Bioquímica e Imunologia-ICB-UFMG, 31270-901 Belo Horizonte, MG, Brazil
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Jose A, Pai SDKR, Pinheiro D, Kasinathan K. Visible light photodegradation of organic dyes using electrochemically synthesized MoO 3/ZnO. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:52202-52215. [PMID: 34003439 DOI: 10.1007/s11356-021-14311-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
In this study, flake-like MoO3-ZnO composite was prepared using a simple and robust electrochemical setup. The composite was characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, elemental analysis, X-ray photoelectron spectroscopy, thermogravimetric analysis, photoluminescence, zeta potential analysis, and electrochemical impedance study. The modified ZnO shows a remarkable catalytic activity towards the photodegradation of three potentially hazardous dyes, malachite green, crystal violet, and methylene blue. More than 95% of both malachite green and crystal violet degraded within 140 min under visible light irradiation. Scavenger studies reveal that OH· radicals produced by the photo-separated charges on MoO3-ZnO are responsible for the degradation of all three dyes. The photoactive charge carriers show less recombination rate as evidenced by the photoluminescence spectrum due to the interparticle charge migration process. This work suggests a new versatile procedure for the synthesis of MoO3-ZnO composites and establishes its photocatalytic efficacy under visible light with three common pollutant dyes found in wastewater.
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Affiliation(s)
- Ajay Jose
- Department of Chemistry, CHRIST (Deemed to be University), Bangalore, Karnataka, 560029, India
| | | | - Dephan Pinheiro
- Department of Chemistry, CHRIST (Deemed to be University), Bangalore, Karnataka, 560029, India
| | - Karthik Kasinathan
- Department of Chemistry, CHRIST (Deemed to be University), Bangalore, Karnataka, 560029, India
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Odion RA, Liu Y, Vo-Dinh T. Plasmonic Gold Nanostar-Mediated Photothermal Immunotherapy. IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS : A PUBLICATION OF THE IEEE LASERS AND ELECTRO-OPTICS SOCIETY 2021; 27:4800109. [PMID: 34054285 PMCID: PMC8159156 DOI: 10.1109/jstqe.2021.3061462] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Cancer is among the leading cause of death around the world, causing close to 10 million deaths each year. Significant efforts have been devoted to developing novel technologies that can detect and treat cancer early and effectively to reduce cancer recurrences, treatment costs, and mortality. Gold nanoparticles (GNP) have been given particular attention for its use with photo-induced hyperthermia coupled with novel immunotherapy methods to provide a new platform for highly selective and less invasive cancer treatment. Among the various GNP platforms, gold nanostars (GNS) have a unique star-shaped geometric structure that allows superior light absorption and photothermal heating. This photothermal effect have also been found to amplify the anti-tumor immune response and can be exploited with adjuvant treatments using immune checkpoint inhibitors. This combination treatment known as Synergistic Immuno Photo Nanotherapy (SYMPHONY) has been shown to reverse tumor-mediated immunosuppression and has led to effective and long-lasting immunity against not only primary tumors but also cancer metastasis. This overview highlights the development and applications of GNS-mediated therapy developed in our laboratory for cancer treatment. This paper also presents recent results of experimental studies to illustrate the superior performance of GNS for photothermal treatment applications.
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Affiliation(s)
- Ren A Odion
- Biomedical Engineering Department, Duke University, Durham, NC 27708 USA
| | - Yang Liu
- Chemistry Department and the Biomedical Engineering Department, Duke University, Durham, NC 27708 USA
| | - Tuan Vo-Dinh
- Biomedical Engineering and Chemistry Department, Duke University, Durham, NC 27708 USA.; Fitzpatrick Institute for Photonics at Duke University
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Using Gold-Nanorod-Filled Mesoporous Silica Nanobeads for Enhanced Radiotherapy of Oral Squamous Carcinoma. NANOMATERIALS 2021; 11:nano11092235. [PMID: 34578551 PMCID: PMC8472528 DOI: 10.3390/nano11092235] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/21/2021] [Accepted: 08/24/2021] [Indexed: 11/30/2022]
Abstract
Radiotherapy (RT), in combination with surgery, is an essential treatment strategy for oral cancer. Although irradiation provides effective control over tumor growth, the surrounding normal tissues are almost inevitably affected. With further understanding of the molecular mechanisms involved in radiation response and recent advances in nanotechnology, using gold nanoparticles as a radiosensitizer provides the preferential sensitization of tumor cells to radiation and minimizes normal tissue damage. Herein, we developed gold nano-sesame-beads (GNSbs), a gold-nanorod-seeded mesoporous silica nanoparticle, as a novel radioenhancer to achieve radiotherapy with a higher therapeutic index. GNSbs in combination with 2 Gy irradiation effectively enhanced the cytotoxic activity CAL-27 cells. The well-designed structure of GNSbs showed preferential cellular uptake by CAL-27 cells at 24 h after incubation. Gold nanorods with high density modified on mesoporous silica nanoparticles resulted in significant reactive oxygen species (ROS) formation after irradiation exposure compared with irradiation alone. Furthermore, GNSbs and irradiation induced more prominent DNA double-strand breaks and G2/M phase arrest in CAL-27 than those in L929. In animal studies, radiotherapy using GNSbs as a radiosensitizer showed significant suppression of tumor growth in an orthotopic model of oral cancer. These results demonstrate that using GNSbs as a radiosensitizer could possess clinical potential for the treatment of oral squamous carcinoma.
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Cai YY, Tauzin LJ, Ostovar B, Lee S, Link S. Light emission from plasmonic nanostructures. J Chem Phys 2021; 155:060901. [PMID: 34391373 DOI: 10.1063/5.0053320] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The mechanism of light emission from metallic nanoparticles has been a subject of debate in recent years. Photoluminescence and electronic Raman scattering mechanisms have both been proposed to explain the observed emission from plasmonic nanostructures. Recent results from Stokes and anti-Stokes emission spectroscopy of single gold nanorods using continuous wave laser excitation carried out in our laboratory are summarized here. We show that varying excitation wavelength and power change the energy distribution of hot carriers and impact the emission spectral lineshape. We then examine the role of interband and intraband transitions in the emission lineshape by varying the particle size. We establish a relationship between the single particle emission quantum yield and its corresponding plasmonic resonance quality factor, which we also tune through nanorod crystallinity. Finally, based on anti-Stokes emission, we extract electron temperatures that further suggest a hot carrier based mechanism. The central role of hot carriers in our systematic study on gold nanorods as a model system supports a Purcell effect enhanced hot carrier photoluminescence mechanism. We end with a discussion on the impact of understanding the light emission mechanism on fields utilizing hot carrier distributions, such as photocatalysis and nanothermometry.
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Affiliation(s)
- Yi-Yu Cai
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - Lawrence J Tauzin
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - Behnaz Ostovar
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - Stephen Lee
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - Stephan Link
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA
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Khan NU, Lin J, Younas MR, Liu X, Shen L. Synthesis of gold nanorods and their performance in the field of cancer cell imaging and photothermal therapy. Cancer Nanotechnol 2021. [DOI: 10.1186/s12645-021-00092-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
AbstractCancer is one of the most common incident in the world, with malignant tumors having a death rate of up to 19%. A new method of treating cancer cells effectively with minimal cytotoxicity is needed. In the field of biomedicine with unique shape-dependent optical properties, gold nanorods (GNRs) have attracted worldwide interest. These nanorods have two distinct plasmon bands. One is transverse plasmon band in the area of visible light, and the other is longitudinal band of plasmons in near infrared region. These specific characters provide promise for the design of new optically active reagents that simultaneously perform light-mediated imaging and photothermal cancer treatment. We begin our review by summarizing the latest developments in gold nanorods synthesis with a focus on seed-mediated growth method. Nanorods spontaneous self-assembly, polymer-based alignment and its applications as a novel agent for simultaneous bioimaging and photothermal cancer therapy are listed in particular.
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Liu H, Gage TE, Singh P, Jaiswal A, Schaller RD, Tang J, Park ST, Gray SK, Arslan I. Visualization of Plasmonic Couplings Using Ultrafast Electron Microscopy. NANO LETTERS 2021; 21:5842-5849. [PMID: 34153185 DOI: 10.1021/acs.nanolett.1c01824] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Hybrids of graphene and metal plasmonic nanostructures are promising building blocks for applications in optoelectronics, surface-enhanced scattering, biosensing, and quantum information. An understanding of the coupling mechanism in these hybrid systems is of vital importance to its applications. Previous efforts in this field mainly focused on spectroscopic studies of strong coupling within the hybrids with no spatial resolution. Here we report direct imaging of the local plasmonic coupling between single Au nanocapsules and graphene step edges at the nanometer scale by photon-induced near-field electron microscopy in an ultrafast electron microscope for the first time. The proximity of a step in the graphene to the nanocapsule causes asymmetric surface charge density at the ends of the nanocapsules. Computational electromagnetic simulations confirm the experimental observations. The results reported here indicate that this hybrid system could be used to manipulate the localized electromagnetic field on the nanoscale, enabling promising future plasmonic devices.
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Affiliation(s)
- Haihua Liu
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Thomas E Gage
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Prem Singh
- School of Basic Sciences, Indian Institute of Technology Mandi, Kamand, Mandi 175005, Himachal Pradesh, India
| | - Amit Jaiswal
- School of Basic Sciences, Indian Institute of Technology Mandi, Kamand, Mandi 175005, Himachal Pradesh, India
| | - Richard D Schaller
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Jau Tang
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China
| | - Sang Tae Park
- IDES, Inc. (a JEOL company), Pleasanton, California 94588, United States
| | - Stephen K Gray
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Ilke Arslan
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
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Akil S, Omar R, Kuznetsov D, Shur V, En Naciri A, Jradi S. Advanced Large-Scale Nanofabrication Route for Ultrasensitive SERS Platforms Based on Precisely Shaped Gold Nanostructures. NANOMATERIALS 2021; 11:nano11071806. [PMID: 34361192 PMCID: PMC8308318 DOI: 10.3390/nano11071806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/06/2021] [Accepted: 07/08/2021] [Indexed: 11/16/2022]
Abstract
One of the key issues for SERS-based trace applications is engineering structurally uniform substrates with ultrasensitivity, stability, and good reproducibility. A label-free, cost-effective, and reproducible fabrication strategy of ultrasensitive SERS sensors was reported in this work. Herein, we present recent progress in self-assembly-based synthesis to elaborate precisely shaped and abundant gold nanoparticles in a large area. We demonstrated that shape control is driven by the selective adsorption of a cation (Na+, K+, and H+) on a single facet of gold nanocrystal seeds during the growth process. We studied SERS features as a function of morphology. Importantly, we found a correlation between the shape and experimental SERS enhancement factors. We observed a detection threshold of 10-20 M of bipyridine ethylene (BPE), which matches the lowest value determined in literature for BPE until now. Such novel sensing finding could be very promising for diseases and pathogen detection and opens up an avenue toward predicting which other morphologies could offer improved sensitivity.
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Affiliation(s)
- Suzanna Akil
- LCP-A2MC, Jean Barriol Institute, Lorraine University, 1 Arago Avenue, 57070 Metz, France; (R.O.); (A.E.N.)
- Correspondence: ; Tel.: +33-6-1839-3579
| | - Rana Omar
- LCP-A2MC, Jean Barriol Institute, Lorraine University, 1 Arago Avenue, 57070 Metz, France; (R.O.); (A.E.N.)
| | - Dmitry Kuznetsov
- School of Natural Sciences and Mathematics, Ural Federal University, 51 Lenin Avenue, 620000 Ekaterinburg, Russia; (D.K.); (V.S.)
| | - Vladimir Shur
- School of Natural Sciences and Mathematics, Ural Federal University, 51 Lenin Avenue, 620000 Ekaterinburg, Russia; (D.K.); (V.S.)
| | - Aotmane En Naciri
- LCP-A2MC, Jean Barriol Institute, Lorraine University, 1 Arago Avenue, 57070 Metz, France; (R.O.); (A.E.N.)
| | - Safi Jradi
- Light, Nanomaterials, Nanotechnologies (L2n) Laboratory, CNRS ERL 7004, University of Technology of Troyes, 12 Rue Marie Curie, 10004 Troyes, France;
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Wani IA, Jain SK, Khan H, Kalam A, Ahmad T. Gold Nanoparticles as Efficient Catalysts in Organic Transformations. Curr Pharm Biotechnol 2021; 22:724-732. [PMID: 33602074 DOI: 10.2174/1389201022666210218195205] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/31/2021] [Accepted: 12/20/2020] [Indexed: 11/22/2022]
Abstract
This review summarizes the utilization of gold nanoparticles as efficient catalysts for a variety of chemical transformations like oxidation, hydrogenation, and coupling reactions as compared to conventional catalytic materials. This review explores the gold nanoparticles-based catalysts for the liquid phase chemo-selective organic transformations which are proving to be evergreen reactions and have importance for industrial applications. Apart from organic transformation reactions, gold nanoparticles have been found to be applicable in removing the atmospheric contaminants and improving the efficiency of the fuel cells by removing the impurities of carbon monoxide.
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Affiliation(s)
- Irshad A Wani
- Department of Chemistry, Nanochemistry Laboratory, Jamia Millia Islamia, New Delhi 110025, India
| | - Sapan K Jain
- Department of Chemistry, Nanochemistry Laboratory, Jamia Millia Islamia, New Delhi 110025, India
| | - Huma Khan
- Department of Chemistry, Nanochemistry Laboratory, Jamia Millia Islamia, New Delhi 110025, India
| | - Abul Kalam
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Tokeer Ahmad
- Department of Chemistry, Nanochemistry Laboratory, Jamia Millia Islamia, New Delhi 110025, India
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Herrera-Carbajal A, Rodríguez-Lugo V, Hernández-Ávila J, Sánchez-Castillo A. A theoretical study on the electronic, structural and optical properties of armchair, zigzag and chiral silicon-germanium nanotubes. Phys Chem Chem Phys 2021; 23:13075-13086. [PMID: 34042934 DOI: 10.1039/d1cp00519g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work we have studied infinite size silicon-germanium alloy nanotubes of several types, armchair, zigzag and chiral, by theoretical analysis based on density functional theory as implemented in the SIESTA code, which utilizes a linear combination of atomic orbitals and a generalized gradient approximation proposed by Perdew, Burke and Ernzerhof (GGA-PBE) for the exchange and correlation energy. The structures were relaxed until the atomic forces were less than 0.0001 eV Å-1. The electronic band structure, density of states and cohesive energy were then computed; the optical calculation was run in between 0 and 6 eV, with a broadening of 0.05 eV. The obtained results exhibit the deformation of the structure on the surface, which seems to be related to its stability. The armchair and zigzag tubes are direct band gap semiconductor materials, while chiral nanotubes shift from indirect to direct bandgap semiconductors, depending on their diameter size. Likewise, the bandgap depends on the diameter of the SiGe nanotubes (SiGeNTs). We have associated the absorption curves and the density of states through Van Hove singularities. In summary, our results on the structural and electronic properties of SiGeNTs elucidate their possible applications in thermoelectrics, photovoltaics and nanoelectronics, while the possibility of associating the absorption curves with the density of states provides a method of characterization.
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Affiliation(s)
- Alejandro Herrera-Carbajal
- Area Academica de Ciencias de la Tierra y Materiales, Universidad Autonoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo km 4.5, Mineral de la Reforma, Hidalgo C.P. 42184, Mexico
| | - Ventura Rodríguez-Lugo
- Area Academica de Ciencias de la Tierra y Materiales, Universidad Autonoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo km 4.5, Mineral de la Reforma, Hidalgo C.P. 42184, Mexico
| | - Juan Hernández-Ávila
- Area Academica de Ciencias de la Tierra y Materiales, Universidad Autonoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo km 4.5, Mineral de la Reforma, Hidalgo C.P. 42184, Mexico
| | - Ariadna Sánchez-Castillo
- Escuela Superior de Apan, Universidad Autónoma del Estado de Hidalgo, Carretera Apan-Calpulalpan km 8, Apan, Hidalgo C.P 43920, Mexico.
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Functionalization of Metal and Carbon Nanoparticles with Potential in Cancer Theranostics. Molecules 2021; 26:molecules26113085. [PMID: 34064173 PMCID: PMC8196792 DOI: 10.3390/molecules26113085] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/17/2021] [Accepted: 05/18/2021] [Indexed: 01/19/2023] Open
Abstract
Cancer theranostics is a new concept of medical approach that attempts to combine in a unique nanoplatform diagnosis, monitoring and therapy so as to provide eradication of a solid tumor in a non-invasive fashion. There are many available solutions to tackle cancer using theranostic agents such as photothermal therapy (PTT) and photodynamic therapy (PDT) under the guidance of imaging techniques (e.g., magnetic resonance-MRI, photoacoustic-PA or computed tomography-CT imaging). Additionally, there are several potential theranostic nanoplatforms able to combine diagnosis and therapy at once, such as gold nanoparticles (GNPs), graphene oxide (GO), superparamagnetic iron oxide nanoparticles (SPIONs) and carbon nanodots (CDs). Currently, surface functionalization of these nanoplatforms is an extremely useful protocol for effectively tuning their structures, interface features and physicochemical properties. This approach is much more reliable and amenable to fine adjustment, reaching both physicochemical and regulatory requirements as a function of the specific field of application. Here, we summarize and compare the most promising metal- and carbon-based theranostic tools reported as potential candidates in precision cancer theranostics. We focused our review on the latest developments in surface functionalization strategies for these nanosystems, or hybrid nanocomposites consisting of their combination, and discuss their main characteristics and potential applications in precision cancer medicine.
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Sierra-Martin B, Fernandez-Barbero A. Particles and nanovoids for plasmonics. Adv Colloid Interface Sci 2021; 290:102394. [PMID: 33711675 DOI: 10.1016/j.cis.2021.102394] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 12/19/2022]
Abstract
This article reviews and compares the optical properties of metallic nanoparticles and nanovoids, which have received great attention due to their ability to generate and control plasmon resonances. These systems are capable of concentrating and manipulating the fields at nanometer scale, being very attractive as building blocks for emerging applications. Metal particles and nanovoids present different plasmonics modes, strongly dependent on the size, shape and nature of the metal and dielectric. Specific geometrical features, as the presence of rims, make the nanovoids very promising structures to design exotic band spectra because of the coupling between different resonant modes.
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