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Peng S, Song J, Wu S, Wang Q, Shen L, Li D, Peng J, Zhang Q, Yang X, Xu H, Redshaw C, Li Y. Aggregation-Induced Emission Photosensitizer with Ag(I)-π Interaction-Enhanced Reactive Oxygen Species for Eliminating Multidrug Resistant Bacteria. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30915-30928. [PMID: 38847621 DOI: 10.1021/acsami.4c05202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
Multidrug-resistant (MDR) bacteria pose serious threats to public health due to the lack of effective and biocompatible drugs to kill MDR bacteria. Photodynamic antibacterial therapy has been widely studied due to its low induction of resistance. However, photosensitizers that can efficiently generate reactive oxygen species (ROS) through both type I and type II mechanisms and that have the capability of multiple modes of action are rarely reported. Addressing this issue, we developed a near-infrared-emitting triphenylamine indole iodoethane (TTII) and its silver(I) self-assembled (TTIIS) aggregation-induced emission (AIE) photosensitizer for multimode bacterial infection therapy. TTII can efficiently produce both Type I ROS •OH and Type II ROS 1O2. Interestingly, the Ag(I)-π interaction contributed in TTIIS efficiency promotion of the generation of 1O2. Moreover, by releasing Ag+, TTIIS enabled photodynamic-Ag(I) dual-mode sterilization. As a result, TTIIS achieved an effective enhancement of antibacterial activity, with a 1-2-fold boost against multidrug-resistant Escherichia coli (MDR E. coli). Both TTII and TTIIS at a concentration as low as 0.55 μg mL-1 can kill more than 98% of methicillin resistant Staphylococcus aureus (MRSA) on MRSA-infected full-thickness defect wounds of a mouse, and both TTII and TTIIS were effective in eliminating the bacteria and promoting wound healing.
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Affiliation(s)
- Senlin Peng
- School of Biology and Engineering (School of Health Medicine Modern Industry), Guizhou Medical University, Guiyang 550025, China
| | - Jiayi Song
- Innovation Research Center for AIE Pharmaceutical Biology, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Shouting Wu
- School of Biology and Engineering (School of Health Medicine Modern Industry), Guizhou Medical University, Guiyang 550025, China
| | - Qian Wang
- School of Basic Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Lingyi Shen
- School of Basic Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Dongmei Li
- School of Basic Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Jian Peng
- School of Basic Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Qilong Zhang
- School of Basic Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Xianjiong Yang
- School of Basic Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Hong Xu
- School of Basic Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Carl Redshaw
- Chemistry, School of Natural Sciences, University of Hull, Cottingham Road, Hull, Yorkshire HU6 7RX, United Kingdom
| | - Ying Li
- Innovation Research Center for AIE Pharmaceutical Biology, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, China
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2
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Kaja S, Mathews AV, Nag A. Dual-functional nano-photosensitizers: Eosin-Y decorated gold nanorods for plasmon-enhanced fluorescence and singlet oxygen generation. RSC Adv 2024; 14:12417-12427. [PMID: 38633485 PMCID: PMC11022186 DOI: 10.1039/d4ra01551g] [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: 02/28/2024] [Accepted: 04/08/2024] [Indexed: 04/19/2024] Open
Abstract
Photosensitizer (PS) with enhanced fluorescence is attractive for image-guided photodynamic therapy (PDT) due to its dual functional role in Singlet Oxygen Generation (SOG) and producing high fluorescence signals. Here, Eosin-Y (Ey) decorated polymer coated gold nanorods (GNRs) of different aspect ratios are synthesized and introduced as novel plasmon-enhanced nano-photosensitizers for this purpose. We show, upon excitation at 519 nm, simultaneous enhancement in fluorescence and SOG was achieved for the hybrid nanostructure. The best enhancement factors of 110 and 18 for metal-enhanced fluorescence and metal-enhanced SOG, respectively, are obtained with GNRs of length 133 nm and width 45 nm, where Ey is positioned at 12.6 nm from the metal core using layer-by-layer assembly of oppositely charged polymers. The observed plasmonic effect is critically analysed by comparing the near field damping rate along with decay length, far field scattering and nonradiative energy transfer of the nanohybrids.
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Affiliation(s)
- Sravani Kaja
- Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus Hyderabad 500078 India
| | - Ashin Varghese Mathews
- Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus Hyderabad 500078 India
| | - Amit Nag
- Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus Hyderabad 500078 India
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3
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More SB, Mohan M, Kulkarni P, Ahire KC. Lycopene attenuates silver nanoparticle-induced liver injury in albino mice. J Biochem Mol Toxicol 2023; 37:e23500. [PMID: 37555715 DOI: 10.1002/jbt.23500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 07/20/2023] [Accepted: 07/31/2023] [Indexed: 08/10/2023]
Abstract
Lycopene is a carotenoid widely used for its dominant antioxidant properties and beneficial health effects. Silver nanoparticles (AgNP) have gained attention for use in many medicinal and consumer products, leading to animal, human, and environmental exposure. This study investigated the dose-dependent effects of lycopene on AgNP-induced hepatotoxicity in albino mice. The four experimental groups, comprising eight albino mice each, were as follows: Group I, vehicle control (C); Group II, AgNP-treated (5 mg/kg/day) (AgNP); Group III, AgNP/lycopene-treated (5 + 10 mg/kg/day) (AgNP + LP10); and Group IV, AgNP/lycopene-treated (5 + 100 mg/kg/day) (AgNP + LP100). All solutions were orally administered to the mice once in a day for consecutive 14 days. The levels of serum aspartate transaminase, alanine transaminase, alkaline phosphatase, and total bilirubin were significantly higher in the AgNP-treated group than in the control group but significantly lower in the AgNP + LP100 group than in the AgNP-treated group. A significant decrease in reduced glutathione level and superoxide dismutase activity and an increase in lipid peroxidation were observed in the AgNP-treated group; these were significantly suppressed in the AgNP+LP100 as compared to AgNP-treated group. Histopathological examination showed substantial morphological alterations in hepatic tissues in the AgNP, which were adequately improved in the low and high dose lycopene-treated groups. The dose of 100 mg/kg/day of lycopene was more effective than 10 mg/kg/day, as pretreatment with high dose lycopene significantly diminished the adverse changes occurred due to AgNP in liver weight, hepatic architecture, serum functional markers, and antioxidant markers. Thus, present study shows that pretreatment with lycopene offers protection against AgNP-induced hepatotoxicity and oxidative stress.
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Affiliation(s)
- Sonal B More
- Department of Pharmacology, MGV Pharmacy College, Nashik, India
| | - Mahalaxmi Mohan
- Department of Pharmacology, MGV Pharmacy College, Nashik, India
| | - Prayrna Kulkarni
- Department of Zoology, Savitribai Phule Pune University, Pune, India
| | - Kedar C Ahire
- Department of Zoology, Savitribai Phule Pune University, Pune, India
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Zhao T, Xu Y, Liu R, Shang X, Huang C, Dong W, Long M, Zou B, Wang X, Li G, Shen Y, Liu T, Tang B. Molecular Engineering Design of Enhanced Donor-Acceptor Therapeutic Reagent for Efficient Image-Guided Photodynamic Therapy. Adv Healthc Mater 2023; 12:e2301035. [PMID: 37450348 DOI: 10.1002/adhm.202301035] [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: 04/02/2023] [Revised: 07/01/2023] [Accepted: 07/10/2023] [Indexed: 07/18/2023]
Abstract
The greatest barrier to the further development and clinical application of tumor image-guided photodynamic therapy (PDT), is the inconsistency between the fluorescence intensity and singlet oxygen generation yield of the photosensitizer under light excitation. Herein, a novel donor-acceptor (D-A) system is designed from the point of molecular selection by wrapping a classical porphyrin molecule (5,10,15,20-tetraphenylphorphyrin, H2 TPP) as an acceptor into conjugated polymer (Poly[N,N'-bis(4-butylpheny)-N,N'-bis(phenyl)benzidine], ADS254BE) as a donor through fluorescence resonance energy transfer (FRET) mechanism, which exhibits bright red emission centered at 650 nm (quantum yield, 0.12), relatively large Stoke shift of 276 nm, enhanced singlet oxygen generation rate of 0.73, and excellent photostability. The investigations on distribution and killing effect of nanomaterials in cancer cells reveal that ADS254BE/H2 TPP NPs can accumulate in the cytoplasm for imaging while simultaneously producing a large amount of singlet oxygen to remarkably kill cancer cells, which can be used for real-time image-guided PDT. In the xenograft tumor model, real-time imaging and long-term tracing in tumor tissue with ADS254BE/H2 TPP NPs disclose that the growth of lung cancer in mice can be effectively inhibited during in situ imaging. From the standpoint of molecular engineering design, this work provides a feasible strategy for novel D-A systems to improve the development of image-guided PDT.
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Affiliation(s)
- Tingting Zhao
- School, of Basic Medical Sciences, Biopharmaceutical Research Institute, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, China
| | - Yanli Xu
- School, of Basic Medical Sciences, Biopharmaceutical Research Institute, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, China
| | - Rui Liu
- School, of Basic Medical Sciences, Biopharmaceutical Research Institute, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, China
| | - Xiaofei Shang
- School, of Basic Medical Sciences, Biopharmaceutical Research Institute, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, China
| | - Ciyuan Huang
- Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key Lab of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education; School of Resources, Environments and Materials, Guangxi University, Nanning, 530004, China
| | - Wuqi Dong
- School, of Basic Medical Sciences, Biopharmaceutical Research Institute, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, China
| | - Min Long
- Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key Lab of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education; School of Resources, Environments and Materials, Guangxi University, Nanning, 530004, China
| | - Bingsuo Zou
- Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key Lab of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education; School of Resources, Environments and Materials, Guangxi University, Nanning, 530004, China
| | - Xianwen Wang
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230032, China
| | - Gang Li
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan, 250014, China
| | - Yuxian Shen
- School, of Basic Medical Sciences, Biopharmaceutical Research Institute, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, China
| | - Tao Liu
- Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key Lab of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education; School of Resources, Environments and Materials, Guangxi University, Nanning, 530004, China
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan, 250014, China
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5
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Wolnicka-Glubisz A, Wisniewska-Becker A. Dual Action of Curcumin as an Anti- and Pro-Oxidant from a Biophysical Perspective. Antioxidants (Basel) 2023; 12:1725. [PMID: 37760028 PMCID: PMC10525529 DOI: 10.3390/antiox12091725] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/30/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Curcumin, a natural polyphenol widely used as a spice, colorant and food additive, has been shown to have therapeutic effects against different disorders, mostly due to its anti-oxidant properties. Curcumin also reduces the efficiency of melanin synthesis and affects cell membranes. However, curcumin can act as a pro-oxidant when blue light is applied, since upon illumination it can generate singlet oxygen. Our review aims to describe this dual role of curcumin from a biophysical perspective, bearing in mind its concentration, bioavailability-enhancing modifications and membrane interactions, as well as environmental conditions such as light. In low concentrations and without irradiation, curcumin shows positive effects and can be recommended as a beneficial food supplement. On the other hand, when used in excess or irradiated, curcumin can be toxic. Therefore, numerous attempts have been undertaken to test curcumin as a potential photosensitizer in photodynamic therapy (PDT). At that point, we underline that curcumin-based PDT is limited to the treatment of superficial tumors or skin and oral infections due to the weak penetration of blue light. Additionally, we conclude that an increase in curcumin bioavailability through the using nanocarriers, and therefore its concentration, as well as its topical use if skin is exposed to light, may be dangerous.
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Affiliation(s)
- Agnieszka Wolnicka-Glubisz
- Department of Biophysics and Cancer Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland
| | - Anna Wisniewska-Becker
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland
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6
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Bhattacharjee R, Negi A, Bhattacharya B, Dey T, Mitra P, Preetam S, Kumar L, Kar S, Das SS, Iqbal D, Kamal M, Alghofaili F, Malik S, Dey A, Jha SK, Ojha S, Paiva-Santos AC, Kesari KK, Jha NK. Nanotheranostics to Target Antibiotic-resistant Bacteria: Strategies and Applications. OPENNANO 2023. [DOI: 10.1016/j.onano.2023.100138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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7
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Tamtaji M, Guo X, Tyagi A, Galligan PR, Liu Z, Roxas A, Liu H, Cai Y, Wong H, Zeng L, Xie J, Du Y, Hu Z, Lu D, Goddard WA, Zhu Y, Luo Z. Machine Learning-Aided Design of Gold Core-Shell Nanocatalysts toward Enhanced and Selective Photooxygenation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:46471-46480. [PMID: 36197146 DOI: 10.1021/acsami.2c11101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
We demonstrate the use of the machine learning (ML) tools to rapidly and accurately predict the electric field as a guide for designing core-shell Au-silica nanoparticles to enhance 1O2 sensitization and selectivity of organic synthesis. Based on the feature importance analysis, obtained from a deep neural network algorithm, we found a general and linear dependent descriptor (θ ∝ aD0.25t-1, where a, D, and t are the shape constant, size of metal nanoparticles, and distance from the metal surface) for the electric field around the core-shell plasmonic nanoparticle. Directed by the new descriptor, we synthesized gold-silica nanoparticles and validated their plasmonic intensity using scanning transmission electron microscopy-electron energy loss spectroscopy (STEM-EELS) mapping. The nanoparticles with θ = 0.40 demonstrate an ∼3-fold increase in the reaction rate of photooxygenation of anthracene and 4% increase in the selectivity of photooxygenation of dihydroartemisinic acid (DHAA), a long-standing goal in organic synthesis. In addition, the combination of ML and experimental investigations shows the synergetic effect of plasmonic enhancement and fluorescence quenching, leading to enhancement for 1O2 generation. Our results from time-dependent density functional theory (TD-DFT) calculations suggest that the presence of an electric field can favor intersystem crossing (ISC) of methylene blue to enhance 1O2 generation. The strategy reported here provides a data-driven catalyst preparation method that can significantly reduce experimental cost while paving the way for designing photocatalysts for organic drug synthesis.
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Affiliation(s)
- Mohsen Tamtaji
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology, and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999077, P. R. China
| | - Xuyun Guo
- Department of Applied Physics, Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hong Kong, China
| | - Abhishek Tyagi
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology, and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999077, P. R. China
| | - Patrick Ryan Galligan
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology, and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999077, P. R. China
| | - Zhenjing Liu
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology, and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999077, P. R. China
| | - Alexander Roxas
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology, and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999077, P. R. China
| | - Hongwei Liu
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology, and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999077, P. R. China
| | - Yuting Cai
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology, and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999077, P. R. China
| | - Hoilun Wong
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology, and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999077, P. R. China
| | - Lun Zeng
- Guangzhou Baiyun Medical Adhesive Co. Ltd., Guangzhou, Guangdong510405, P. R. China
| | - Jianbo Xie
- Guangzhou Baiyun Medical Adhesive Co. Ltd., Guangzhou, Guangdong510405, P. R. China
| | - Yucong Du
- Guangzhou Baiyun Medical Adhesive Co. Ltd., Guangzhou, Guangdong510405, P. R. China
| | - Zhigang Hu
- Silver Age Engineering Plastics (Dongguan) Co. Ltd., Dongguan, Guangdong523187, P. R. China
| | - Dong Lu
- Guangzhou HKUST Fok Ying Tung Research Institute, Guangzhou, Guangdong511458, P. R. China
| | - William A Goddard
- Materials and Process Simulation Center (MSC), MC 139-74, California Institute of Technology, Pasadena, California91125, United States
| | - Ye Zhu
- Department of Applied Physics, Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hong Kong, China
| | - Zhengtang Luo
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology, and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999077, P. R. China
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8
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George BP, Chota A, Sarbadhikary P, Abrahamse H. Fundamentals and applications of metal nanoparticle- enhanced singlet oxygen generation for improved cancer photodynamic therapy. Front Chem 2022; 10:964674. [PMID: 35936097 PMCID: PMC9352943 DOI: 10.3389/fchem.2022.964674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 06/30/2022] [Indexed: 12/12/2022] Open
Abstract
The introduction of nanotechnology in the field of Photodynamic Therapy (PDT) has proven to have great potential to overcome some of the challenges associated with traditional organic photosensitizers (PS) with respect to their solubility, drug delivery, distribution and site-specific targeting. Other focused areas in PDT involve high singlet oxygen production capability and excitability of PS by deep tissue penetrating light wavelengths. Owing to their very promising optical and surface plasmon resonance properties, combination of traditional PSs with plasmonic metallic nanoparticles like gold and silver nanoparticles results in remarkably high singlet oxygen production and extended excitation property from visible and near-infrared lights. This review summarizes the importance, fundamentals and applications of on plasmonic metallic nanoparticles in PDT. Lastly, we highlight the future prospects of these plasmonic nanoengineering strategies with or without PS combination, to have a significant impact in improving the therapeutic efficacy of cancer PDT.
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Alessandri I. 4‐Aminothiophenol Photodimerization Without Plasmons**. Angew Chem Int Ed Engl 2022; 61:e202205013. [PMID: 35532974 PMCID: PMC9401036 DOI: 10.1002/anie.202205013] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Indexed: 11/10/2022]
Abstract
The photodimerization of 4‐aminothiophenol (PATP) into 4,4′‐dimercaptobenzene (DMAB) has been extensively utilized as a paradigm reaction to probe the role of surface plasmons in nanoparticle‐mediated light‐driven processes. Here I report the first observation of the PATP‐to‐DMAB photoreaction in the absence of any plasmonic mediators. The reaction was observed to occur with different kinetics either for PATP adsorbed on non‐plasmonic nanoparticles (TiO2, ZnO, SiO2) or deposited as macroscopic droplets. Confocal microRaman spectroscopy enabled to investigate the reaction progress in different plasmon‐free contexts, either aerobic or anaerobic, suggesting a new interpretation of the photodimerization process, based on direct laser‐induced activation of singlet oxygen species. These results provide new insights in light‐driven redox processes, elucidating the role of sample morphology, light and oxygen.
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Affiliation(s)
- Ivano Alessandri
- Sustainable Chemistry and Materials Group Department of Information Engineering University of Brescia Italy
- INSTM Consorzio Nazionale per la Scienza e Tecnologia dei Materiali RU Brescia via Branze 38 25123 Brescia Italy
- INO-CNR RU Brescia via Branze 43 25123 Brescia Italy
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10
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Kuthala N, Shanmugam M, Kong X, Chiang CS, Hwang KC. Salt-mediated, plasmonic field-field/field-lattice coupling-enhanced NIR-II photodynamic therapy using core-gap-shell gold nanopeanuts. NANOSCALE HORIZONS 2022; 7:589-606. [PMID: 35527504 DOI: 10.1039/d1nh00631b] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Plasmonic field-field coupling-induced enhancement of the optical properties of dye molecules in the nanogaps among metal nanoparticle clusters and thin films has attracted significant attention especially in disease-related theranostic applications. However, it is very challenging to synthesize plasmonic core-gap-shell nanostructures with a well-controlled nanogap, uniform shape, and distances to maximize the plasmonic field-field coupling between the core and the shell. Herein, we synthesized Au@gap@AuAg nanopeanut-shaped core-gap-shell nanostructures (Au NPN) and tuned their optical absorption from near-infrared region-I (NIR-I) to near-infrared region-II (NIR-II) by filling their nanogap with a high dielectric NaCl(aq) aqueous solution, which led to a dramatic redshift in the plasmonic absorption band by 320 nm from 660 to 980 nm and a 12.6-fold increase (at 1064 nm) in the extinction coefficient in the NIR region (1000-1300 nm). Upon filling the nanogap with NaCl(aq) aqueous solution, the Au NPN6.5(NaCl) (i.e., ∼6.5 nm nanogap)-mediated NIR-II photodynamic therapy effect was dramatically enhanced, resulting in a much longer average lifespan of >55 days for the mice bearing a murine colon tumor and treated with Au NPN6.5(NaCl) plus 1064 nm light irradiation compared to the mice treated with Au NPN6.5 + 1064 nm light irradiation (without nanogap filled with dielectric NaCl(aq), 40 d) and the doxorubicin-treated group (23 d). This study demonstrates a simple but effective method to tune and maximize the plasmonic field-field coupling between the metal shell and metal core of core-gap-shell nanostructures, the plasmonic field-lattice interactions, and biomedical applications for the treatment of tumors. Overall, our work presents a new way to enhance/maximize the plasmonic field-field and field-lattice coupling, and thus the performance/sensitivities in nanogap-based bioimaging, sensing, and theranostic nanomaterials and devices.
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Affiliation(s)
- Naresh Kuthala
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan, Republic of China.
| | - Munusamy Shanmugam
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan, Republic of China.
| | - Xiangyi Kong
- Department of Breast Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Chi-Shiun Chiang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan, Republic of China
| | - Kuo Chu Hwang
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan, Republic of China.
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11
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Affiliation(s)
- Ivano Alessandri
- Sustainable Chemistry and Materials Group Department of Information Engineering University of Brescia Italy
- INSTM Consorzio Nazionale per la Scienza e Tecnologia dei Materiali RU Brescia via Branze 38 25123 Brescia Italy
- INO-CNR RU Brescia via Branze 43 25123 Brescia Italy
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12
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Saw WS, Anasamy T, Anh Do TT, Lee HB, Chee CF, Isci U, Misran M, Dumoulin F, Chong WY, Kiew LV, Imae T, Chung LY. Nanoscaled PAMAM Dendrimer Spacer Improved the Photothermal-Photodynamic Treatment Efficiency of Photosensitizer-Decorated Confeito-Like Gold Nanoparticles for Cancer Therapy. Macromol Biosci 2022; 22:e2200130. [PMID: 35579182 DOI: 10.1002/mabi.202200130] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/07/2022] [Indexed: 11/11/2022]
Abstract
A critical factor in developing an efficient photosensitizer-gold nanoparticle (PS-AuNP) hybrid system with improved plasmonic photosensitization is to allocate a suitable space between AuNPs and PS. Poly(amidoamine) (PAMAM) dendrimer is selected as a spacer between the PS and confeito-like gold nanoparticles (confeito-AuNPs), providing the required distance (≈2.5-22.5 nm) for plasmon-enhanced singlet oxygen generation and heat production upon 638-nm laser irradiation and increase the cellular internalization of the nanoconjugates. The loading of the PS, tetrakis(4-carboxyphenyl) porphyrin (TCPP) and modified zinc phthalocyanine (ZnPc1) onto PAMAM-confeito-AuNPs demonstrate better in vitro cancer cell-killing efficacy, as the combined photothermal-photodynamic therapies (PTT-PDTs) outperforms the single treatment modalities (PTT or PDT alone). These PS-PAMAM-confeito-AuNPs also demonstrate higher phototoxicity than photosensitizers directly conjugated to confeito-AuNPs (TCPP-confeito-AuNPs and ZnPc1-confeito-AuNPs) against all breast cancer cell lines tested (MDA-MB-231, MCF7 and 4T1). In the in vivo studies, TCPP-PAMAM-confeito-AuNPs are biocompatible and exhibit a selective tumor accumulation effect, resulting in higher antitumor efficacy than free TCPP, PAMAM-confeito-AuNPs and TCPP-confeito-AuNPs. In vitro and in vivo evaluations confirm PAMAM effectiveness in facilitating cellular uptake, plasmon-enhanced singlet oxygen and heat generation. In summary, this study highlights the potential of integrating a PAMAM spacer in enhancing the plasmon effect-based photothermal-photodynamic anticancer treatment efficiency of PS-decorated confeito-AuNPs. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Wen Shang Saw
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Theebaa Anasamy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Malaya, Kuala Lumpur, 50603, Malaysia.,Department of Pharmacology, Faculty of Medicine, Manipal University College Malaysia, Jalan Batu Hampar, Bukit Baru, 75150, Malaysia
| | - Thu Thi Anh Do
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei, 10607, Taiwan
| | - Hong Boon Lee
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Malaya, Kuala Lumpur, 50603, Malaysia.,School of Biosciences, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Selangor, 47500, Malaysia
| | - Chin Fei Chee
- Nanotechnology and Catalysis Research Centre, Institute for Advanced Studies, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Umit Isci
- Department of Chemistry, Gebze Technical University, Gebze, 41400, Turkey
| | - Misni Misran
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Fabienne Dumoulin
- Department of Medical Engineering, Faculty of Engineering, Acıbadem Mehmet Ali Aydınlar University, İstanbul, Turkey
| | - Wu Yi Chong
- Photonics Research Centre, Faculty of Science, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Lik Voon Kiew
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Toyoko Imae
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei, 10607, Taiwan.,Department of Chemical Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei, 10607, Taiwan
| | - Lip Yong Chung
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Malaya, Kuala Lumpur, 50603, Malaysia
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13
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Tavakkoli Yaraki M, Liu B, Tan YN. Emerging Strategies in Enhancing Singlet Oxygen Generation of Nano-Photosensitizers Toward Advanced Phototherapy. NANO-MICRO LETTERS 2022; 14:123. [PMID: 35513555 PMCID: PMC9072609 DOI: 10.1007/s40820-022-00856-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 03/21/2022] [Indexed: 05/06/2023]
Abstract
The great promise of photodynamic therapy (PDT) has thrusted the rapid progress of developing highly effective photosensitizers (PS) in killing cancerous cells and bacteria. To mitigate the intrinsic limitations of the classical molecular photosensitizers, researchers have been looking into designing new generation of nanomaterial-based photosensitizers (nano-photosensitizers) with better photostability and higher singlet oxygen generation (SOG) efficiency, and ways of enhancing the performance of existing photosensitizers. In this paper, we review the recent development of nano-photosensitizers and nanoplasmonic strategies to enhance the SOG efficiency for better PDT performance. Firstly, we explain the mechanism of reactive oxygen species generation by classical photosensitizers, followed by a brief discussion on the commercially available photosensitizers and their limitations in PDT. We then introduce three types of new generation nano-photosensitizers that can effectively produce singlet oxygen molecules under visible light illumination, i.e., aggregation-induced emission nanodots, metal nanoclusters (< 2 nm), and carbon dots. Different design approaches to synthesize these nano-photosensitizers were also discussed. To further enhance the SOG rate of nano-photosensitizers, plasmonic strategies on using different types of metal nanoparticles in both colloidal and planar metal-PS systems are reviewed. The key parameters that determine the metal-enhanced SOG (ME-SOG) efficiency and their underlined enhancement mechanism are discussed. Lastly, we highlight the future prospects of these nanoengineering strategies, and discuss how the future development in nanobiotechnology and theoretical simulation could accelerate the design of new photosensitizers and ME-SOG systems for highly effective image-guided photodynamic therapy.
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Affiliation(s)
- Mohammad Tavakkoli Yaraki
- Institute of Materials Research and Engineering, The Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, #08-03, Innovis, 138634, Singapore
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore.
| | - Yen Nee Tan
- Institute of Materials Research and Engineering, The Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, #08-03, Innovis, 138634, Singapore.
- Faculty of Science, Agriculture and Engineering, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK.
- Newcastle Research and Innovation Institute, Newcastle University in Singapore, 80 Jurong East Street 21, #05-04, Singapore, 609607, Singapore.
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14
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de Oliveira de Siqueira LB, Dos Santos Matos AP, da Silva MRM, Pinto SR, Santos-Oliveira R, Ricci-Júnior E. Pharmaceutical Nanotechnology Applied to Phthalocyanines for the Promotion of the Antimicrobial Photodynamic Therapy: A Literature Review. Photodiagnosis Photodyn Ther 2022; 39:102896. [PMID: 35525432 DOI: 10.1016/j.pdpdt.2022.102896] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/08/2022] [Accepted: 05/02/2022] [Indexed: 12/24/2022]
Abstract
Phthalocyanines are photosensitizers activated by light at a specific wavelength in the presence of oxygen and act topically through the production of Reactive Oxygen Species, which simultaneously attack several biomolecular targets in the pathogen agent and, therefore, have multiple and variable action sites. This nonspecific action site delineates the conventional resistance mechanisms. Antimicrobial Photodynamic Therapy (aPDT) is safe, easy to implement and, unlike conventional agents, the activity spectrum of photoantimicrobials. This work is a systematic review of the literature based on nanocarriers containing phthalocyanines in aPDT against bacteria, fungi, viruses, and protozoa. The search was performed in two different databases (MEDLINE/PubMed and Web of Science) between 2011 and May 2021. Nanocarriers often improve the action or are equivalent to free drugs, but their use allows substituting the organic solvent in the case of hydrophobic phthalocyanines, allowing for a safer application of aPDT with the possibility of prolonged release. In the case of hydrophilic phthalocyanines, they would allow for nonspecific site delivery with a possibility of cellular internalization. A single infectious lesion can have multiple microorganisms, and PDT with phthalocyanines is an interesting treatment given its ample spectrum of action. It is possible to highlight the upconversion nanosystems, which allow for the activation of phthalocyanine in deeper tissues by using longer wavelengths, as a system that has not yet been studied, but which could provide treatment solutions. The use of nanocarriers containing phthalocyanines requires more studies in animal models and clinical studies to establish the use of aPDT in humans.
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Affiliation(s)
| | - Ana Paula Dos Santos Matos
- Galenic Development Laboratory (LADEG), Pharmacy School, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
| | - Marcio Robert Mattos da Silva
- Galenic Development Laboratory (LADEG), Pharmacy School, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Suyene Rocha Pinto
- Laboratory of Nanoradiopharmaceutical and Synthesis of Novels Radiopharmaceuticals, Nuclear Engineering Institute, Rio de Janeiro, RJ, Brazil
| | - Ralph Santos-Oliveira
- Laboratory of Nanoradiopharmaceutical and Synthesis of Novels Radiopharmaceuticals, Nuclear Engineering Institute, Rio de Janeiro, RJ, Brazil; Laboratory of Nanoradiopharmacy and Radiopharmaceuticals, Zona Oeste State University, Rio de Janeiro, RJ, Brazil
| | - Eduardo Ricci-Júnior
- Galenic Development Laboratory (LADEG), Pharmacy School, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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15
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Lu Y, Wu LW, Cao W, Huang YF. Finding a Sensitive Surface-Enhanced Raman Spectroscopic Thermometer at the Nanoscale by Examining the Functional Groups. Anal Chem 2022; 94:6011-6016. [PMID: 35377614 DOI: 10.1021/acs.analchem.2c00633] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Temperature variation at the nanoscale is pivotal for the thermodynamics and kinetics of small entities. Surface-enhanced Raman spectroscopy (SERS) is a promising technique for monitoring temperature variations at the nanoscale. A key but ambiguous topic is methods to design a sensitive SERS thermometer. Here, we elucidate that the type of chemical bond of molecular probes and the surface chemical bonding effect are crucial for maximizing the sensitivity of the SERS thermometer, as illustrated by the variable-temperature SERS measurements and quantum chemistry calculations for the frequency-temperature functions of a series of molecules. The sensitivity of the frequency-temperature function follows the sequence of triple bond > double bond > single bond, which is available for both aliphatic and aromatic molecules. The surface chemical bonding effect between the SERS substrate and molecular probe substantially increases the sensitivity of the frequency-temperature function. These results provide universally available guidelines for the rational design of a sensitive SERS thermometer by examining the functional groups of molecular probes.
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Affiliation(s)
- Yang Lu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
| | - Li-Wen Wu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
| | - Wumei Cao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
| | - Yi-Fan Huang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
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16
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Etim UJ, Bai P, Gazit OM, Zhong Z. Low-Temperature Heterogeneous Oxidation Catalysis and Molecular Oxygen Activation. CATALYSIS REVIEWS 2021. [DOI: 10.1080/01614940.2021.1919044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ubong J. Etim
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong, China
| | - Peng Bai
- College of Chemical Engineering, China University of Petroleum, Qingdao, China
| | - Oz M. Gazit
- Wolfson Faculty of Chemical Engineering, Technion – Israel Institute of Technology, Haifa, Israel
| | - Ziyi Zhong
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong, China
- Technion Israel Institute of Technology (IIT), Haifa, Israel
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17
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Robbins E, Leroy-Lhez S, Villandier N, Samoć M, Matczyszyn K. Prospects for More Efficient Multi-Photon Absorption Photosensitizers Exhibiting Both Reactive Oxygen Species Generation and Luminescence. Molecules 2021; 26:molecules26206323. [PMID: 34684904 PMCID: PMC8541311 DOI: 10.3390/molecules26206323] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 01/10/2023] Open
Abstract
The use of two-photon absorption (TPA) for such applications as microscopy, imaging, and photodynamic therapy (PDT) offers several advantages over the usual one-photon excitation. This creates a need for photosensitizers that exhibit both strong two-photon absorption and the highly efficient generation of reactive oxygen species (ROS), as well as, ideally, bright luminescence. This review focuses on different strategies utilized to improve the TPA properties of various multi-photon absorbing species that have the required photophysical properties. Along with well-known families of photosensitizers, including porphyrins, we also describe other promising organic and organometallic structures and more complex systems involving organic and inorganic nanoparticles. We concentrate on the published studies that provide two-photon absorption cross-section values and the singlet oxygen (or other ROS) and luminescence quantum yields, which are crucial for potential use within PDT and diagnostics. We hope that this review will aid in the design and modification of novel TPA photosensitizers, which can help in exploiting the features of nonlinear absorption processes.
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Affiliation(s)
- Emma Robbins
- Laboratoire PEIRENE, Université de Limoges, 123 Avenue Albert Thomas, 87060 Limoges, France; (E.R.); (S.L.-L.); (N.V.)
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspianskiego 27, 50-370 Wrocław, Poland;
| | - Stéphanie Leroy-Lhez
- Laboratoire PEIRENE, Université de Limoges, 123 Avenue Albert Thomas, 87060 Limoges, France; (E.R.); (S.L.-L.); (N.V.)
| | - Nicolas Villandier
- Laboratoire PEIRENE, Université de Limoges, 123 Avenue Albert Thomas, 87060 Limoges, France; (E.R.); (S.L.-L.); (N.V.)
| | - Marek Samoć
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspianskiego 27, 50-370 Wrocław, Poland;
| | - Katarzyna Matczyszyn
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspianskiego 27, 50-370 Wrocław, Poland;
- Correspondence:
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18
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Farooq S, de Araujo RE. Identifying high performance gold nanoshells for singlet oxygen generation enhancement. Photodiagnosis Photodyn Ther 2021; 35:102466. [PMID: 34343668 DOI: 10.1016/j.pdpdt.2021.102466] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 07/11/2021] [Accepted: 07/26/2021] [Indexed: 12/30/2022]
Abstract
Metallic nanostructures can improve the production of singlet oxygen (1O2) of a photosensitizer during photodynamic therapy (PDT) . Engineering a high performance nanoparticle is mandatory for an appropriate use of plasmonic nanostructures in PDT. Metal enhanced singlet oxygen generation requires the use of nanoparticles with high scattering efficiency, capable of inducing a significant electric field enhancement and with plasmon peak overlapping the photosensitizer absorption spectrum. Herein, we report the optimization of nanoshells structure (silica core radius and gold shell thickness) to increase the singlet oxygen production by Methylene Blue photosensitizer. A 3D Full-wave field analysis was used to evaluate the plasmonic spectrum, scattering efficiency and localized field intensity of Au nanoshells as a function of their dimensions. The 40/20 core radius/shell thickness optimized gold nanoshell showed 75% scattering efficiency and field enhancement up to 35 times. Metal-enhanced singlet oxygen generation was observed and quantified for Methylene Blue water solution with gold nanoshell particles. Moreover, the influence of the irradiation time and the metallic nanostructures concentration on metal enhanced singlet oxygen generation were also appraised. The experimental results showed that the use of gold nanoshell improved 320% the 1O2 production in a MB solution. The approach used to select a high performance metallic nanoparticle provides insights on engineering plasmonic structures for metal enhanced singlet oxygen generation for PDT.
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Affiliation(s)
- Sajid Farooq
- Institute of Innovation and Technology, University of Pernambuco, Recife, Brazil; Department of Electronic and System, Federal University of Pernambuco, Recife, Brazil
| | - Renato E de Araujo
- Department of Electronic and System, Federal University of Pernambuco, Recife, Brazil.
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19
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Mota DR, Lima GAS, de Oliveira HPM, Pellosi DS. Pluronic-loaded Silver Nanoparticles/Photosensitizers Nanohybrids: Influence of the Polymer Chain Length on Metal-enhanced Photophysical Properties. Photochem Photobiol 2021; 98:175-183. [PMID: 34309861 DOI: 10.1111/php.13492] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 07/21/2021] [Indexed: 11/29/2022]
Abstract
Silver nanoparticles (AgNPs) are incredibly versatile nanostructures that more recently have been exploited to create advanced optoelectronic materials due enhancement of local magnetic field after its irradiation. However, the use of AgNPs as nanoantennas to amplify photophysical properties of close photosensitizer (PS) molecules in photodynamic therapy is still underexplored. The reason for that is the difficulty to control crucial parameters such as silver-PS distance in aqueous solution. In this scenario, here we propose a nanohybrid system where AgNP/PS distance is controlled by a thin layer of different Pluronic copolymers. The controllable distance and aqueous stability of proposed nanohybrids allow a tunable enhancement of fluorescence emission and singlet oxygen generation of some selected PS molecules. A detailed mechanism investigation demonstrated that the observed metal-enhanced photophysics is due to magnetic field enhancement close to AgNP surface (AgNP/PS distance-controlled effect) and the resonant coupling of AgNP hot electrons and HOMO-LUMO energies of the PS (AgNP/PS spectral overlap-controlled effect). These results show that the rational design in engineering new nanohybrid structures allowed photophysical improvement of PS molecules in aqueous solution in a tunable way and point out Pluronic-based AgNP/PS nanohybrids as a smart material for further developments aiming at theranostic applications in photodynamic therapy.
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Affiliation(s)
- Danielle Ramos Mota
- Laboratory of Hybrid Materials, Department of Chemistry, Federal University of São Paulo, Diadema, São Paulo, Brazil
| | | | | | - Diogo Silva Pellosi
- Laboratory of Hybrid Materials, Department of Chemistry, Federal University of São Paulo, Diadema, São Paulo, Brazil
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20
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The effect of gold nanoparticle capping agents on 1O2 detection by singlet oxygen sensor green. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113170] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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21
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Affiliation(s)
- Jinxing Chen
- Department of Chemistry University of California Riverside CA 92521 USA
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Institute of Functional Nano and Soft Materials (FUNSOM) Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Zuyang Ye
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Fan Yang
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Yadong Yin
- Department of Chemistry University of California Riverside CA 92521 USA
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22
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Tavakkoli Yaraki M, Wu M, Middha E, Wu W, Daqiqeh Rezaei S, Liu B, Tan YN. Gold Nanostars-AIE Theranostic Nanodots with Enhanced Fluorescence and Photosensitization Towards Effective Image-Guided Photodynamic Therapy. NANO-MICRO LETTERS 2021; 13:58. [PMID: 34138261 PMCID: PMC8187487 DOI: 10.1007/s40820-020-00583-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 12/08/2020] [Indexed: 05/05/2023]
Abstract
Dual-functional aggregation-induced photosensitizers (AIE-PSs) with singlet oxygen generation (SOG) ability and bright fluorescence in aggregated state have received much attention in image-guided photodynamic therapy (PDT). However, designing an AIE-PS with both high SOG and intense fluorescence via molecular design is still challenging. In this work, we report a new nanohybrid consisting of gold nanostar (AuNS) and AIE-PS dots with enhanced fluorescence and photosensitization for theranostic applications. The spectral overlap between the extinction of AuNS and fluorescence emission of AIE-PS dots (665 nm) is carefully selected using five different AuNSs with distinct localized surface plasmon (LSPR) peaks. Results show that all the AuNSs can enhance the 1O2 production of AIE-PS dots, among which the AuNS with LSPR peak at 585 nm exhibited the highest 1O2 enhancement factor of 15-fold with increased fluorescence brightness. To the best of our knowledge, this is the highest enhancement factor reported for the metal-enhanced singlet oxygen generation systems. The Au585@AIE-PS nanodots were applied for simultaneous fluorescence imaging and photodynamic ablation of HeLa cancer cells with strongly enhanced PDT efficiency in vitro. This study provides a better understanding of the metal-enhanced AIE-PS nanohybrid systems, opening up new avenue towards advanced image-guided PDT with greatly improved efficacy.
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Affiliation(s)
- Mohammad Tavakkoli Yaraki
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), Singapore, 138634, Singapore
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Min Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Eshu Middha
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Wenbo Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Soroosh Daqiqeh Rezaei
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), Singapore, 138634, Singapore
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117575, Singapore
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore.
| | - Yen Nee Tan
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), Singapore, 138634, Singapore.
- Faculty of Science, Agriculture and Engineering, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK.
- Newcastle Research and Innovation Institute (NewRIIS), 80 Jurong East Street 21, #05-04, Singapore, 609607, Singapore.
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Improved photothermal therapy of brain cancer cells and photogeneration of reactive oxygen species by biotin conjugated gold photoactive nanoparticles. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 215:112102. [PMID: 33388605 DOI: 10.1016/j.jphotobiol.2020.112102] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 10/15/2020] [Accepted: 12/09/2020] [Indexed: 12/20/2022]
Abstract
Herein, we report on the design and development of functionalized acrylic polymeric nanoparticles with Spiropyrans (SPs) and imidazole moieties via superficial polymerizations. Then, Au3+ ions were immobilized and reduced on their surface to obtain photoresponsive gold-decorated polymer nanoparticles(Au-NPs). The synthesized Au-NPs were surface adapted with biotin as specific targeting tumor penetration cells and enhance the intercellular uptake through the endocytosis. FT-IR (Fourier-transform Infrared Spectroscopy), UV-Vis (Ultra Violet-Visible Spectrophotometer), EDS (Energy Dispersive X-Ray Spectroscopy), SEM (Scanning Electron Microscope) and HR-TEM (High-resolution transmission electron microscopy) descriptions were engaged to illustrate their spectral analysis and morphological examinations of Bt@Au-NPs. Fluorescence microscopy images of cellular uptake descriptions and ICP-MS (Inductively coupled plasma mass spectrometry) investigation established the cell lines labeling ability and enhanced targetting efficacy of biotin-conjugated Au-NPs (Bt@Au-NPs) toward C6 glioma cells (brain cancer cells) with 72.5% cellular uptake relative to 30.2% for non-conjugated lone. These were further established through intracellular ROS examinations and in vitro cytotoxicity investigation on the C6 glioma cell line. The solid surface plasmon absorptions of the Au-NPs and Bt@Au-NPs providing raised photothermal therapy under UV irradiation. The synthesized multifunctional Bt@Au-NPs with an inclusive combination of potential resources presented encouraging nanoprobe with targeting capability, improved photodynamic and photothermal cancer therapy.
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Dhanalekshmi KI, Sangeetha K, Magesan P, Johnson J, Zhang X, Jayamoorthy K. Photodynamic cancer therapy: role of Ag- and Au-based hybrid nano-photosensitizers. J Biomol Struct Dyn 2020; 40:4766-4773. [PMID: 33300461 DOI: 10.1080/07391102.2020.1858965] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The utilization of photodynamic therapy (PDT) has been rapidly increasing due to its advantage as an effective treatment modality for cancer. The organic photosensitizers employed for PDT have some disadvantages, including high toxicity, non-selectivity toward tumors and poor absorption of light. The low light penetration into the tumor sites resulting from low wavelength of absorption and long-term skin photosensitivity. Hence, the attention toward non-toxic inorganic photosensitizers like noble metal nanoparticles (NPs) has been increasing nowadays. In bioscience, NPs are replacing organic dyes since they have photostability and non-toxicity. Generally, nanomaterials can easily form compounds with other substances as well as organic materials and the modified NPs surface enhances the chemical activity. Among the metal NPs, noble metals, especially gold and silver are attractive because of their size and shape-dependent unique optoelectronic properties. The coating of inorganic/organic materials on top of the noble metal makes the NPs bio-compatible and less toxic. Furthermore, Ag- and Au-based inorganic/organic complex NPs could offer a new possibility because of their unique structures. Meanwhile, the coating of inorganic/organic complex NPs protects the noble metals and stabilizes them against chemical corrosion and enhances the production of reactive oxygen species. Thus, in this review, we have highlighted the role of Ag- and Au-based inorganic/organic hybrid nano-photosensitizers in photodynamic therapy.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- K I Dhanalekshmi
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China
| | - K Sangeetha
- Department of IBT, Bharath Institute of Higher Education & Research, Bharath University, Chennai, Tamil Nadu, India
| | - P Magesan
- Department of Chemistry, Bharath Institute of Higher Education & Research, Bharath University, Chennai, Tamil Nadu, India
| | - Jijo Johnson
- Department of Chemistry, Santhom Malankara Arts and Science College, Edanji, Thiruvananthapuram, Kerala, India
| | - Xiang Zhang
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China
| | - K Jayamoorthy
- Department of Chemistry, St. Joseph's College of Engineering, Chennai, Tamil Nadu, India
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25
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Mendoza C, Désert A, Chateau D, Monnereau C, Khrouz L, Lerouge F, Andraud C, Monbaliu JCM, Parola S, Heinrichs B. Au nanobipyramids@mSiO 2 core-shell nanoparticles for plasmon-enhanced singlet oxygen photooxygenations in segmented flow microreactors. NANOSCALE ADVANCES 2020; 2:5280-5287. [PMID: 36132037 PMCID: PMC9416853 DOI: 10.1039/d0na00533a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 08/28/2020] [Indexed: 05/21/2023]
Abstract
The plasmonic features of gold nanomaterials provide intriguing optical effects which can find potential applications in various fields. These effects depend strongly on the size and shape of the metal nanostructures. For instance, Au bipyramids (AuBPs) exhibit intense and well-defined plasmon resonance, easily tunable by controlling their aspect ratio, which can act synergistically with chromophores for enhancing their photophysical properties. In Rose Bengal-nanoparticle systems it is now well established that the control of the dye-to-nanoparticle distance ranging from 10 to 20 nm as well as spectral overlaps is crucial to achieve appropriate coupling between the plasmon resonance and the dye, thus affecting its ability to generate singlet oxygen (1O2). We have developed AuBPs@mSiO2 core-shell nanostructures that provide control over the distance between the metal surface and the photosensitizers for improving the production of 1O2 (metal-enhanced 1O2 production - ME1O2). A drastic enhancement of 1O2 generation is evidenced for the resulting AuBPs and AuBPs@mSiO2 in the presence of Rose Bengal, using a combination of three indirect methods of 1O2 detection, namely in operando Electron Paramagnetic Resonance (EPR) with 2,2,6,6-tetramethylpiperidine (TEMP) as a chemical trap, photooxygenation of the fluorescence probe anthracene-9,10-dipropionic acid (ADPA), and photooxygenation of methionine to methionine sulfoxide in a segmented flow microreactor.
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Affiliation(s)
- Carlos Mendoza
- Nanomaterials, Catalysis & Electrochemistry (NCE), Department of Chemical Engineering, University of Liège B-4000 Liège Belgium
| | - Anthony Désert
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1, UMR 5182, Laboratoire de Chimie 46 Allée d'Italie Lyon F69364 France
| | - Denis Chateau
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1, UMR 5182, Laboratoire de Chimie 46 Allée d'Italie Lyon F69364 France
| | - Cyrille Monnereau
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1, UMR 5182, Laboratoire de Chimie 46 Allée d'Italie Lyon F69364 France
| | - Lhoussain Khrouz
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1, UMR 5182, Laboratoire de Chimie 46 Allée d'Italie Lyon F69364 France
| | - Fréderic Lerouge
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1, UMR 5182, Laboratoire de Chimie 46 Allée d'Italie Lyon F69364 France
| | - Chantal Andraud
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1, UMR 5182, Laboratoire de Chimie 46 Allée d'Italie Lyon F69364 France
| | - Jean-Christophe M Monbaliu
- Center for Integrated Technology and Organic Synthesis (CiTOS), Research Unit MolSys, University of Liège B-4000 Liège Belgium
| | - Stéphane Parola
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1, UMR 5182, Laboratoire de Chimie 46 Allée d'Italie Lyon F69364 France
| | - Benoît Heinrichs
- Nanomaterials, Catalysis & Electrochemistry (NCE), Department of Chemical Engineering, University of Liège B-4000 Liège Belgium
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Morales-de-Echegaray AV, Lin L, Sivasubramaniam B, Yermembetova A, Wang Q, Abutaleb NS, Seleem MN, Wei A. Antimicrobial photodynamic activity of gallium-substituted haemoglobin on silver nanoparticles. NANOSCALE 2020; 12:21734-21742. [PMID: 33094755 PMCID: PMC7663423 DOI: 10.1039/c9nr09064a] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA), a major scourge in skin and soft-tissue infections, expresses surface-bound haemoprotein receptors that can be exploited for the targeted delivery of photosensitizers. We have developed a nanosized agent for targeted antimicrobial photodynamic therapy (aPDT), comprised of GaPpIX (a hemin analog with potent photosensitizer activity) encapsulated in haemoglobin (GaHb), mounted on 10 nm Ag nanoparticles (AgNPs). The average GaHb-AgNP contains 28 GaPpIX units stabilized by Hb αβ-dimer units. Eradication (>6-log reduction) of S. aureus and MRSA can be achieved by a 10-second exposure to 405 nm irradiation from a light-emitting diode (LED) array (140 mW cm-2), with GaHb-AgNP loadings as low as 5.6 μg mL-1 for S. aureus and 16.6 μg mL-1 for MRSA, corresponding to nanomolar levels of GaPpIX. This reduction in bacterial count is several orders of magnitude greater than that of GaHb or free GaPpIX on a per mole basis. The GaHb-AgNP platform is also effective against persister MRSA and intracellular MRSA, and can provide comparable levels of aPDT with a 15-minute irradiation by an inexpensive compact fluorescent lightbulb. Collateral phototoxicity to keratinocytes (HaCaT cells) is low at the GaHb-AgNP concentrations and fluences used for aPDT. GaHb adsorbed on 10 nm AgNPs is much more potent than that on 40 nm AgNPs or 10 nm AuNPs, indicating that both size and plasmon-resonant coupling are important factors for enhanced aPDT. Electron microscopy analysis reveals that GaHb-AgNPs are not readily internalized by S. aureus but remain attached to the bacterial cell wall, the likely target of photo-oxidative damage.
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Knoblauch R, Geddes CD. Carbon Nanodots in Photodynamic Antimicrobial Therapy: A Review. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4004. [PMID: 32927673 PMCID: PMC7559411 DOI: 10.3390/ma13184004] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/24/2020] [Accepted: 08/25/2020] [Indexed: 02/08/2023]
Abstract
Antibiotic resistance development in bacteria is an ever-increasing global health concern as new resistant strains and/or resistance mechanisms emerge each day, out-pacing the discovery of novel antibiotics. Increasingly, research focuses on alternate techniques, such as antimicrobial photodynamic therapy (APDT) or photocatalytic disinfection, to combat pathogens even before infection occurs. Small molecule "photosensitizers" have been developed to date for this application, using light energy to inflict damage and death on nearby pathogens via the generation of reactive oxygen species (ROS). These molecular agents are frequently limited in widespread application by synthetic expense and complexity. Carbon dots, or fluorescent, quasi-spherical nanoparticle structures, provide an inexpensive and "green" solution for a new class of APDT photosensitizers. To date, reviews have examined the overall antimicrobial properties of carbon dot structures. Herein we provide a focused review on the recent progress for carbon nanodots in photodynamic disinfection, highlighting select studies of carbon dots as intrinsic photosensitizers, structural tuning strategies for optimization, and their use in hybrid disinfection systems and materials. Limitations and challenges are also discussed, and contemporary experimental strategies presented. This review provides a focused foundation for which APDT using carbon dots may be expanded in future research, ultimately on a global scale.
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Affiliation(s)
| | - Chris D. Geddes
- Institute of Fluorescence and Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, 701 East Pratt Street, Baltimore, MD 21202, USA;
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28
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Synthesis of Pluronic-based silver nanoparticles/methylene blue nanohybrids: Influence of the metal shape on photophysical properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 114:110987. [DOI: 10.1016/j.msec.2020.110987] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/07/2020] [Accepted: 04/17/2020] [Indexed: 12/18/2022]
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29
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Tavakkoli Yaraki M, Hu F, Daqiqeh Rezaei S, Liu B, Tan YN. Metal-enhancement study of dual functional photosensitizers with aggregation-induced emission and singlet oxygen generation. NANOSCALE ADVANCES 2020; 2:2859-2869. [PMID: 36132415 PMCID: PMC9419615 DOI: 10.1039/d0na00182a] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 06/09/2020] [Indexed: 05/10/2023]
Abstract
Photosensitizers with aggregation-induced emission (AIE-PS) are attractive for image-guided photodynamic therapy due to their dual functional role in generating singlet oxygen and producing high fluorescent signal in the aggregated state. However, their brightness and treatment efficiency maybe limited in current practice. Herein we report the first systematic investigation on the metal-enhanced fluorescence (MEF) and singlet oxygen generation (ME-SOG) ability of our newly synthesized AIE-photosensitizers. The Ag@AIE-PS of varied sizes were prepared via layer-by-layer assembly with controlled distance between silver nanoparticles (AgNPs) and AIE-PS. A maximum of 6-fold enhancement in fluorescence and 2-fold increment in SOG were observed for the 85nmAg@AIE-PS. Comprehensive characterization and simulation were conducted to unravel the plasmon-enhancement mechanisms of Ag@AIE-PS. Results show that MEF of AIE-PS is determined by the enhanced electric field around AgNPs, while ME-SOG is dictated by the scattering efficiency of the metal core, where bigger AgNPs would result in larger enhancement factor. Furthermore, the optimum distance between AgNPs and AIE-PS to achieve maximum SOG enhancement is shorter than that required for the highest MEF. The correlation of MEF and ME-SOG found in this study is useful for designing new a generation of AIE-photosensitizers with high brightness and treatment efficiency towards practical theranostic application in the future.
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Affiliation(s)
- Mohammad Tavakkoli Yaraki
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR) 138634 Singapore
- Department Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Fang Hu
- Department Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Soroosh Daqiqeh Rezaei
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR) 138634 Singapore
- Department of Mechanical Engineering, National University of Singapore 9 Engineering Drive 1 117575 Singapore
| | - Bin Liu
- Department Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Yen Nee Tan
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR) 138634 Singapore
- Faculty of Science, Agriculture & Engineering, Newcastle University Newcastle Upon Tyne NE1 7RU UK
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30
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Huang YF, Wang W, Guo HY, Zhan C, Duan S, Zhan D, Wu DY, Ren B, Tian ZQ. Microphotoelectrochemical Surface-Enhanced Raman Spectroscopy: Toward Bridging Hot-Electron Transfer with a Molecular Reaction. J Am Chem Soc 2020; 142:8483-8489. [DOI: 10.1021/jacs.0c02523] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yi-Fan Huang
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Wei Wang
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Hong-Yu Guo
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Chao Zhan
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Sai Duan
- MOE Key Laboratory of Computational Physical Sciences, Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Dongping Zhan
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - De-Yin Wu
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Bin Ren
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhong-Qun Tian
- The State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
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31
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Zhang L, Cheng Q, Li C, Zeng X, Zhang XZ. Near infrared light-triggered metal ion and photodynamic therapy based on AgNPs/porphyrinic MOFs for tumors and pathogens elimination. Biomaterials 2020; 248:120029. [PMID: 32289589 DOI: 10.1016/j.biomaterials.2020.120029] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 04/02/2020] [Accepted: 04/02/2020] [Indexed: 12/29/2022]
Abstract
Although metal-based agents are widely used in disease treatment, precisely controlled metal ions release is still a challenge. Here, we demonstrated a nanoplatform (PAM) to achieve on-demand activation and release of metal ions via controlling oxidation condition by near infrared (NIR) light-inducted photodynamic therapy (PDT). PAM was constructed by decorating silver nanoparticles (AgNPs) onto the porphyrinic porous coordination network (PCN) and further camouflaging with the neutrophil membrane (NM) with inflammatory targeting ability. PAM was inactive without irradiation, causing no damage to normal tissues. However, under NIR irradiation at tumor or infected tissues, PCN locally generated singlet oxygen (1O2), enabling AgNPs to be partly degraded to release cytotoxic Ag+ for metal ions therapy (MIT). Simultaneously, the incorporated AgNPs promoted the 1O2 yield of PCN due to the localized electric field effect. Consequently, the NIR light-controlled interlocking interactions between AgNPs and PCN might offer a great potential for achieving controlled, precise and efficient disease treatment with reduced side-effect.
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Affiliation(s)
- Lu Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, PR China
| | - Qian Cheng
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, PR China
| | - Chuxin Li
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, PR China
| | - Xuan Zeng
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, PR China
| | - Xian-Zheng Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, PR China.
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32
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Tavakkoli Yaraki M, Daqiqeh Rezaei S, Tan YN. Simulation guided design of silver nanostructures for plasmon-enhanced fluorescence, singlet oxygen generation and SERS applications. Phys Chem Chem Phys 2020; 22:5673-5687. [PMID: 32103209 DOI: 10.1039/c9cp06029d] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Plasmonic nanostructures such as gold and silver could alter the intrinsic properties of fluorophores, photosensitizers or Raman reporters in their close vicinity. In this study, we have conducted systematic simulations to provide insight for the design of silver nanostructures with appropriate geometrical features for metal-enhanced fluorescence (MEF), metal-enhanced singlet oxygen generation (ME-SOG) and surface-enhanced Raman scattering (SERS) applications. The size-dependent optical properties and electric field enhancement of single and dimeric nanocubes were simulated. The extinction spectra of silver nanocubes were analysed by the multipole expansion method. Results show that a suitable size of Ag nanocubes for MEF and ME-SOG can be selected based on their maximum light scattering yield, the excitation and emission wavelengths of a particular fluorophore/photosensitizer and their maximum spectral overlap. Simulations of the 'hot-spot' or gap distance between two silver nanocubes with different configurations (i.e., face-to-face, edge-to-edge and corner-to-corner) were also performed. A direct correlation was found between the size and enhanced electric field around the Ag nanocubes simulated under 15 common Raman laser wavelengths from the UV to near-infrared region. The maximum SERS enhancement factor can be achieved by selecting the silver nanocubes with the right orientation, suitable edge length and gap distance that give the highest electric field at a specific Raman laser wavelength. It was also found that the higher order of silver nanostructures, e.g., trimer and tetramer, can lead to better enhancement effects. These simulation results can serve as generic guidelines to rationally design metal-enhancement systems including MEF, ME-SOG and SERS for different application needs without cumbersome optimization and tedious trial-and-error experimentation.
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Affiliation(s)
- Mohammad Tavakkoli Yaraki
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 138634, Singapore
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33
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Penjweini R, Kim MM, Ong YH, Zhu TC. 1O 2 determined from the measured PDT dose and 3O 2 predicts long-term response to Photofrin-mediated PDT. Phys Med Biol 2020; 65:03LT01. [PMID: 31751964 DOI: 10.1088/1361-6560/ab59f1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Photodynamic therapy (PDT) that employs the photochemical interaction of light, photosensitizer and oxygen is an established modality for the treatment of cancer. However, dosimetry for PDT is becoming increasingly complex due to the heterogeneous photosensitizer uptake by the tumor, and complicated relationship between the tissue oxygenation ([3O2]), interstitial light distribution, photosensitizer photobleaching and PDT effect. As a result, experts argue that the failure to realize PDT's true potential is, at least partly due to the complexity of the dosimetry problem. In this study, we examine the efficacy of singlet oxygen explicit dosimetry (SOED) based on the measurements of the interstitial light fluence rate distribution, changes of [3O2] and photosensitizer concentration during Photofrin-mediated PDT to predict long-term control rates of radiation-induced fibrosarcoma tumors. We further show how variation in tissue [3O2] between animals induces variation in the treatment response for the same PDT protocol. PDT was performed with 5 mg kg-1 Photofrin (a drug-light interval of 24 h), in-air fluence rates (ϕ air) of 50 and 75 mW cm-2 and in-air fluences from 225 to 540 J cm-2. The tumor regrowth was tracked for 90 d after the treatment and Kaplan-Meier analyses for local control rate were performed based on a tumor volume ⩽100 mm3 for the two dosimetry quantities of PDT dose and SOED. Based on the results, SOED allowed for reduced subject variation and improved treatment evaluation as compared to the PDT dose.
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Affiliation(s)
- Rozhin Penjweini
- Department of Radiation Oncology, University of Pennsylvania, School of Medicine, 3400 Civic Center Boulevard TRC 4W, Philadelphia, PA 19104, United States of America. Laboratory of Advanced Microscopy and Biophotonics, National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Building 10, Room 5D14, Bethesda, MD 20892-1412, United States of America
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Noor N, Mutalik S, Younas MW, Chan CY, Thakur S, Wang F, Yao MZ, Mou Q, Leung PHM. Durable Antimicrobial Behaviour from Silver-Graphene Coated Medical Textile Composites. Polymers (Basel) 2019; 11:E2000. [PMID: 31816952 PMCID: PMC6961056 DOI: 10.3390/polym11122000] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 11/20/2019] [Accepted: 11/29/2019] [Indexed: 01/01/2023] Open
Abstract
Silver nanoparticle (AgNP) and AgNP/reduced graphene oxide (rGO) nanocomposite impregnated medical grade polyviscose textile pads were formed using a facile, surface-mediated wet chemical solution-dipping process, without further annealing. Surfaces were sequentially treated in situ with a sodium borohydride (NaBH4) reducing agent, prior to formation, deposition, and fixation of Ag nanostructures and/or rGO nanosheets throughout porous non-woven (i.e., randomly interwoven) fibrous scaffolds. There was no need for stabilising agent use. The surface morphology of the treated fabrics and the reaction mechanism were characterised by Fourier transform infrared (FTIR) spectra, ultraviolet-visible (UV-Vis) absorption spectra, X-ray diffraction (XRD), Raman spectroscopy, dynamic light scattering (DLS) energy-dispersive X-ray analysis (EDS), and scanning electron microscopic (SEM). XRD and EDS confirmed the presence of pure-phase metallic silver. Variation of reducing agent concentration allowed control over characteristic plasmon absorption of AgNP while SEM imaging, EDS, and DLS confirmed the presence of and dispersion of Ag particles, with smaller agglomerates existing with concurrent rGO use, which also coincided with enhanced AgNP loading. The composites demonstrated potent antimicrobial activity against the clinically relevant gram-negative Escherichia coli (a key causative bacterial agent of healthcare-associated infections; HAIs). The best antibacterial rate achieved for treated substrates was 100% with only a slight decrease (to 90.1%) after 12 equivalent laundering cycles of standard washing. Investigation of silver ion release behaviours through inductively coupled plasmon optical emission spectroscopy (ICP-OES) and laundering durability tests showed that AgNP adhesion was aided by the presence of the rGO host matrix allowing for robust immobilisation of silver nanostructures with relatively high stability, which offered a rapid, convenient, scalable route to conformal NP-decorated and nanocomposite soft matter coatings.
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Affiliation(s)
- Nuruzzaman Noor
- Materials Synthesis and Processing Lab, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (S.M.); (M.W.Y.); (C.Y.C.); (S.T.); (F.W.)
| | - Suhas Mutalik
- Materials Synthesis and Processing Lab, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (S.M.); (M.W.Y.); (C.Y.C.); (S.T.); (F.W.)
| | - Muhammad Waseem Younas
- Materials Synthesis and Processing Lab, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (S.M.); (M.W.Y.); (C.Y.C.); (S.T.); (F.W.)
| | - Cheuk Ying Chan
- Materials Synthesis and Processing Lab, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (S.M.); (M.W.Y.); (C.Y.C.); (S.T.); (F.W.)
| | - Suman Thakur
- Materials Synthesis and Processing Lab, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (S.M.); (M.W.Y.); (C.Y.C.); (S.T.); (F.W.)
| | - Faming Wang
- Materials Synthesis and Processing Lab, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (S.M.); (M.W.Y.); (C.Y.C.); (S.T.); (F.W.)
| | - Mian Zhi Yao
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Lee Shau Kee Building, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (M.Z.Y.); (Q.M.); (P.H.-m.L.)
| | - Qianqian Mou
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Lee Shau Kee Building, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (M.Z.Y.); (Q.M.); (P.H.-m.L.)
| | - Polly Hang-mei Leung
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Lee Shau Kee Building, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (M.Z.Y.); (Q.M.); (P.H.-m.L.)
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Li S, Shen X, Xu QH, Cao Y. Gold nanorod enhanced conjugated polymer/photosensitizer composite nanoparticles for simultaneous two-photon excitation fluorescence imaging and photodynamic therapy. NANOSCALE 2019; 11:19551-19560. [PMID: 31578535 DOI: 10.1039/c9nr05488j] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Two-photon photodynamic therapy (2P-PDT) is a novel minimal invasive cancer treatment method with advantages of deep penetration and intrinsic three-dimensionally localized activation to precisely target cancerous tissues. However, the therapeutic efficacy of 2P-PDT is limited by small two-photon absorption cross sections of conventional organic photosensitizers. In addition, traditional photosensitizers generally exhibit weak emission and lack imaging modality. In this work, conjugated polymers and gold nanorods (Au NRs) were integrated to fabricate nano-sized photosensitizers to improve the performance of molecular photosensitizers for 2P-PDT. A molecular photosensitizer, tetraphenylporphyrin, was encapsulated into the conjugated polymer PFV to form conjugated polymer nanoparticles (CPNs), which were then covalently linked to silica coated Au NRs. In these integrated nanoparticles, the two-photon optical properties of tetraphenylporphyrin were first enhanced by fluorescence resonance energy transfer from PFV, then further enhanced by Au NRs through plasmon resonance. A silica shell was utilized as the spacer between Au NRs and CPNs to optimize the enhancement effects. Through the combined enhancement effects of energy transfer and plasmon resonance, two-photon excitation fluorescence and two-photon induced singlet oxygen generation of tetraphenylporphyrin were enhanced by up to 980- and 792-fold, respectively, at a silica spacer thickness of 9 nm. The application of these nanoparticles as photosensitizers for simultaneous two-photon imaging and 2P-PDT treatment have been demonstrated on HeLa cancer cells with high brightness and significantly enhanced cancer cell killing efficiency. These nanoparticles can act as promising nano-photosensitizers for 2P-PDT with simultaneous imaging modality.
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Affiliation(s)
- Shuang Li
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, P. R. China
| | - Xiaoqin Shen
- National University of Singapore (Suzhou) Research Institute, Suzhou 215123, China.
| | - Qing-Hua Xu
- National University of Singapore (Suzhou) Research Institute, Suzhou 215123, China. and Department of Chemistry, National University of Singapore, 117543, Singapore
| | - Yong Cao
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, P. R. China
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Bermúdez-Jiménez C, Romney MG, Roa-Flores SA, Martínez-Castañón G, Bach H. Hydrogel-embedded gold nanorods activated by plasmonic photothermy with potent antimicrobial activity. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2019; 22:102093. [DOI: 10.1016/j.nano.2019.102093] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 08/01/2019] [Accepted: 09/05/2019] [Indexed: 12/16/2022]
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Kim M, Lee J, Nam J. Plasmonic Photothermal Nanoparticles for Biomedical Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900471. [PMID: 31508273 PMCID: PMC6724476 DOI: 10.1002/advs.201900471] [Citation(s) in RCA: 257] [Impact Index Per Article: 51.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 05/19/2019] [Indexed: 05/02/2023]
Abstract
Recent advances of plasmonic nanoparticles include fascinating developments in the fields of energy, catalyst chemistry, optics, biotechnology, and medicine. The plasmonic photothermal properties of metallic nanoparticles are of enormous interest in biomedical fields because of their strong and tunable optical response and the capability to manipulate the photothermal effect by an external light source. To date, most biomedical applications using photothermal nanoparticles have focused on photothermal therapy; however, to fully realize the potential of these particles for clinical and other applications, the fundamental properties of photothermal nanoparticles need to be better understood and controlled, and the photothermal effect-based diagnosis, treatment, and theranostics should be thoroughly explored. This Progress Report summarizes recent advances in the understanding and applications of plasmonic photothermal nanoparticles, particularly for sensing, imaging, therapy, and drug delivery, and discusses the future directions of these fields.
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Affiliation(s)
- Minho Kim
- Department of ChemistrySeoul National UniversitySeoul08826South Korea
| | - Jung‐Hoon Lee
- Department of ChemistryCity University of Hong KongHong Kong SAR, P. R. China
| | - Jwa‐Min Nam
- Department of ChemistrySeoul National UniversitySeoul08826South Korea
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Macia N, Kabanov V, Côté-Cyr M, Heyne B. Roles of Near and Far Fields in Plasmon-Enhanced Singlet Oxygen Production. J Phys Chem Lett 2019; 10:3654-3660. [PMID: 31194564 DOI: 10.1021/acs.jpclett.9b01165] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
In plasmon-enhanced singlet oxygen (1O2) production, irradiation of a hybrid photosensitizer-metal nanoparticle leads to a significant alteration of the photosensitizer's 1O2 yield. The quest for a more rational design of these nanomaterials calls for a better understanding of the enhancement mechanism that, to this day, remains largely unexplored. Herein, we introduce a new methodology to distinguish the near- and far-field contributions to the plasmon-enhanced 1O2 production using a tunable model nanoplatform, Rose Bengal-decorated silica-coated metal nanoparticles. By correlating 1O2 production to the experimental and simulated optical properties of our nanoparticles, we effectively discriminate how the near- and far-field effects contribute to the plasmonic interactions. We show that these effects work in synergy; i.e., for nanoparticles with a similar local field, the production of 1O2 correlates with maximized scattering yields. Our results expound the critical plasmonic aspects in terms of near and far fields for the design of an efficient hybrid plasmonic nanoparticle photosensitizer.
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Affiliation(s)
- Nicolas Macia
- Department of Chemistry , University of Calgary , 2500 University Drive Northwest , Calgary , Alberta , Canada T2N 1N4
| | - Vladimir Kabanov
- Department of Chemistry , University of Calgary , 2500 University Drive Northwest , Calgary , Alberta , Canada T2N 1N4
| | - Mélanie Côté-Cyr
- Department of Chemistry , University of Calgary , 2500 University Drive Northwest , Calgary , Alberta , Canada T2N 1N4
| | - Belinda Heyne
- Department of Chemistry , University of Calgary , 2500 University Drive Northwest , Calgary , Alberta , Canada T2N 1N4
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Kumar PPP, Yadav P, Shanavas A, Thurakkal S, Joseph J, Neelakandan PP. A three-component supramolecular nanocomposite as a heavy-atom-free photosensitizer. Chem Commun (Camb) 2019; 55:5623-5626. [DOI: 10.1039/c9cc02480h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The preparation of a supramolecular nanocomposite containing BODIPY, tryptophan and gold nanoparticles capable of photosensitized generation of singlet oxygen is reported.
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Affiliation(s)
| | - Pranjali Yadav
- Institute of Nano Science and Technology
- Habitat Centre
- Mohali 160062
- India
| | - Asifkhan Shanavas
- Institute of Nano Science and Technology
- Habitat Centre
- Mohali 160062
- India
| | - Shameel Thurakkal
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Thiruvananthapuram 695019
- India
| | - Joshy Joseph
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Thiruvananthapuram 695019
- India
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Macia N, Bresoli-Obach R, Nonell S, Heyne B. Hybrid Silver Nanocubes for Improved Plasmon-Enhanced Singlet Oxygen Production and Inactivation of Bacteria. J Am Chem Soc 2018; 141:684-692. [PMID: 30525580 DOI: 10.1021/jacs.8b12206] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Plasmonic nanoparticles can strongly interact with adjacent photosensitizer molecules, resulting in a significant alteration of their singlet oxygen (1O2) production. In this work, we report the next generation of metal-enhanced 1O2 nanoplatforms exploiting the lightning rod effect, or plasmon hot spots, in anisotropic (nonspherical) metal nanoparticles. We describe the synthesis of Rose Bengal-decorated silica-coated silver nanocubes (Ag@SiO2-RB NCs) with silica shell thicknesses ranging from 5 to 50 nm based on an optimized protocol yielding highly homogeneous Ag NCs. Steady-state and time-resolved 1O2 measurements demonstrate not only the silica shell thickness dependence on the metal-enhanced 1O2 production phenomenon but also the superiority of this next generation of nanoplatforms. A maximum enhancement of 1O2 of approximately 12-fold is observed with a 10 nm silica shell, which is among the largest 1O2 production metal enhancement factors ever reported for a colloidal suspension of nanoparticles. Finally, the Ag@SiO2-RB NCs were benchmarked against the Ag@SiO2-RB nanospheres previously reported by our group, and the superior 1O2 production of Ag@SiO2-RB NCs resulted in improved antimicrobial activities in photodynamic inactivation experiments using both Gram-positive and -negative bacteria model strains.
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Affiliation(s)
- Nicolas Macia
- Department of Chemistry , University of Calgary , Calgary , Alberta , Canada T2N 1N4
| | - Roger Bresoli-Obach
- Institut Quimic de Sarria , Universitat Ramon Llull , Barcelona 08029 , Spain
| | - Santi Nonell
- Institut Quimic de Sarria , Universitat Ramon Llull , Barcelona 08029 , Spain
| | - Belinda Heyne
- Department of Chemistry , University of Calgary , Calgary , Alberta , Canada T2N 1N4
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Mfouo Tynga I, Abrahamse H. Nano-Mediated Photodynamic Therapy for Cancer: Enhancement of Cancer Specificity and Therapeutic Effects. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E923. [PMID: 30412991 PMCID: PMC6266777 DOI: 10.3390/nano8110923] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 10/24/2018] [Accepted: 10/25/2018] [Indexed: 12/12/2022]
Abstract
Deregulation of cell growth and development lead to cancer, a severe condition that claims millions of lives worldwide. Targeted or selective approaches used during cancer treatment determine the efficacy and outcome of the therapy. In order to enhance specificity and targeting and obtain better treatment options for cancer, novel modalities are currently under development. Photodynamic therapy has the potential to eradicate cancer, and combination therapy would yield even greater outcomes. Nanomedicine-aided cancer therapy shows enhanced specificity for cancer cells and minimal side-effects coupled with effective cancer destruction both in vitro and in vivo. Nanocarriers used in drug-delivery systems are very capable of penetrating the cancer stem cell niche, simultaneously killing cancer cells and eradicating drug-resistant cancer stem cells, yielding therapeutic efficiency of up to 100-fold against drug-resistant cancer in comparison with free drugs. Safety precautions should be considered when using nano-mediated therapy as the effects of extended exposure to biological environments are still to be determined.
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Affiliation(s)
- Ivan Mfouo Tynga
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa.
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa.
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Murugan E, J NJ, Ariraman M, Rajendran S, Kathirvel J, Akshata CR, Kumar K. Core-Shell Nanostructured Fe 3O 4-Poly(styrene- co-vinylbenzyl chloride) Grafted PPI Dendrimers Stabilized with AuNPs/PdNPs for Efficient Nuclease Activity. ACS OMEGA 2018; 3:13685-13693. [PMID: 30411048 PMCID: PMC6217652 DOI: 10.1021/acsomega.8b01326] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 09/17/2018] [Indexed: 06/08/2023]
Abstract
Four different novel magnetic core-shell nanocomposites stabilized with Au/Pd nanoparticles (NPs) were prepared by a simple procedure and demonstrated their catalytic activity for effective cleavage of pBR322 DNA. Initially, the Fe3O4-poly(styrene-divinylbenzene-vinylbenzyl chloride) (ST-DVB-VBC) matrix functionalized with 3-aminobenzoic acid was prepared and grafted with PPI-G(2) and PPI-G(3) dendrimers. Each core-shell matrix was immobilized with AuNPs and PdNPs separately. The resulting composites were characterized by FT-IR, UV-vis, SEM, TEM, XRD, VSM, XPS, Raman, and TGA. The magnetic core-shell nanocomposites at concentrations from 30 to 50 μM were employed separately to study DNA cleavage by agarose gel electrophoresis. Among the four magnetic core-shell nanocomposites, Fe3O4-poly(ST-DVB-VBC)-PPI-G(3)-AuNPs showed higher activity than others for DNA cleavage, and formed Form-II and -III DNA. When the concentration of Fe3O4-poly(ST-DVB-VBC)-PPI-G(3)-AuNPs was increased from 40 to 45 and 45 to 50 μM, Form-III (linear) DNA was observed with 10 and 22%, respectively, in addition to Form-II. This observation suggests formation of linear DNA from the supercoiled DNA via nicked DNA-intermediated consecutive cleaving process. The magnetic core-shell nanocomposites were stable and monodispersed, and exhibited rapid magnetic response. These properties are crucial for their application in biomolecular separations and targeted drug-delivery in the future.
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Affiliation(s)
- Eagambaram Murugan
- Department
of Physical Chemistry, School of Chemical Sciences, University of Madras, Maraimalai Campus, Chennai 600025, Tamil Nadu, India
| | - Nimita Jebaranjitham J
- PG
Department of Chemistry, Women’s
Christian College (An Autonomous Institution Affiliated to University
of Madras), College Road, Chennai 600 006, India
| | - Mathivathanan Ariraman
- Department
of Chemical Engineering, National Chung
Hsing University, Taichung
City 402, Taiwan
| | - Saravanan Rajendran
- Escuela
Universitaria de Ingeniería Mecánica (EUDIM), Universidad de Tarapacá, Avda. General Velásquez, 1775 Arica, Chile
| | - Janankiraman Kathirvel
- Department
of Physical Chemistry, School of Chemical Sciences, University of Madras, Maraimalai Campus, Chennai 600025, Tamil Nadu, India
| | - C. R. Akshata
- Department
of Physical Chemistry, School of Chemical Sciences, University of Madras, Maraimalai Campus, Chennai 600025, Tamil Nadu, India
| | - Kalpana Kumar
- Department
of Physical Chemistry, School of Chemical Sciences, University of Madras, Maraimalai Campus, Chennai 600025, Tamil Nadu, India
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Jin C, Liu X, Tan L, Cui Z, Yang X, Zheng Y, Yeung KWK, Chu PK, Wu S. Ag/AgBr-loaded mesoporous silica for rapid sterilization and promotion of wound healing. Biomater Sci 2018; 6:1735-1744. [PMID: 29808218 DOI: 10.1039/c8bm00353j] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Bacterial infection is a major concern during the wound healing process. Herein, Ag/AgBr-loaded mesoporous silica nanoparticles (Ag/AgBr/MSNs) are designed to harvest visible light for rapid sterilization and acceleration of wound healing. The Ag/AgBr nanostructure has remarkable photocatalysis ability due to the critical factor that it can generate electron-hole pairs easily after light absorption. This remarkable photocatalytic effect enhances the antibacterial activity by producing reactive oxygen species (ROS). The bacterial killing efficiency of Ag/AgBr/MSNs is 95.62% and 99.99% against Staphylococcus aureus and Escherichia coli, respectively, within 15 min under simulated solar light irradiation due to the generation of ROS. Furthermore, the composites can arrest the bacterial growth and damage the bacterial membrane through electrostatic interaction. The gradual release of Ag+ not only prevents bacterial infection with good long-term effectiveness but also stimulates the immune function to produce a large number of white blood cells and neutrophils, which favors the promotion of the wound healing process. This platform provides an effective strategy to prevent bacterial infection during wound healing.
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Affiliation(s)
- Chen Jin
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University, Wuhan 430062, China
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García Calavia P, Bruce G, Pérez-García L, Russell DA. Photosensitiser-gold nanoparticle conjugates for photodynamic therapy of cancer. Photochem Photobiol Sci 2018; 17:1534-1552. [PMID: 30118115 DOI: 10.1039/c8pp00271a] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Gold nanoparticles (AuNPs) have been extensively studied within biomedicine due to their biocompatibility and low toxicity. In particular, AuNPs have been widely used to deliver photosensitiser agents for photodynamic therapy (PDT) of cancer. Here we review the state-of-the-art for the functionalisation of the gold nanoparticle surface with both photosensitisers and targeting ligands for the active targeting of cancer cell surface receptors. From the initial use of the AuNPs as a simple carrier of the photosensitiser for PDT, the field has significantly advanced to include: the use of PEGylated modification to provide aqueous compatibility and stealth properties for in vivo use; gold metal-surface enhanced singlet oxygen generation; functionalisation of the AuNP surface with biological ligands to specifically target over-expressed receptors on the surface of cancer cells and; the creation of nanorods and nanostars to enable combined PDT and photothermal therapies. These versatile AuNPs have significantly enhanced the efficacy of traditional photosensitisers for both in vitro and in vivo cancer therapy. From this review it is apparent that AuNPs have an important future in the treatment of cancer.
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Affiliation(s)
- Paula García Calavia
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
| | - Gordon Bruce
- School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Lluïsa Pérez-García
- School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - David A Russell
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
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Rasmussen M, Serov A, Artyushkova K, Chen D, Rose TC, Atanassov P, Harris JM, Minteer SD. Enhancement of Electrocatalytic Oxidation of Glycerol by Plasmonics. ChemElectroChem 2018. [DOI: 10.1002/celc.201800611] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Michelle Rasmussen
- Departments of Chemistry and Materials Science and Engineering University of Utah 315 S 1400 E Room 2020 Salt Lake City UT 84112 United States
| | - Alexey Serov
- Department of Chemical and Nuclear Engineering University of New Mexico Albuquerque NM 87131
| | - Kateryna Artyushkova
- Department of Chemical and Nuclear Engineering University of New Mexico Albuquerque NM 87131
| | - Dayi Chen
- Departments of Chemistry and Materials Science and Engineering University of Utah 315 S 1400 E Room 2020 Salt Lake City UT 84112 United States
| | - Timothy C. Rose
- Departments of Chemistry and Materials Science and Engineering University of Utah 315 S 1400 E Room 2020 Salt Lake City UT 84112 United States
| | - Plamen Atanassov
- Department of Chemical and Nuclear Engineering University of New Mexico Albuquerque NM 87131
| | - Joel M. Harris
- Department of Chemistry University of Utah 315 S 1400 E Room 2020 Salt Lake City UT 84112 United States
| | - Shelley D. Minteer
- Departments of Chemistry and Materials Science and Engineering University of Utah 315 S 1400 E Room 2020 Salt Lake City UT 84112 United States
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Keyvan Rad J, Mahdavian AR, Khoei S, Shirvalilou S. Enhanced Photogeneration of Reactive Oxygen Species and Targeted Photothermal Therapy of C6 Glioma Brain Cancer Cells by Folate-Conjugated Gold-Photoactive Polymer Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2018; 10:19483-19493. [PMID: 29787247 DOI: 10.1021/acsami.8b05252] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Tumor-selective photodynamic therapy is a successful method for ablation of malignant and cancerous cells. Herein, we introduce the design and preparation of functionalized acrylic copolymer nanoparticles with spiropyran (SP) and imidazole groups through a facile semicontinuous emulsion polymerization. Then, Au3+ ions were immobilized and reduced on their surface to obtain photoresponsive gold-decorated polymer nanoparticles (PGPNPs). The prepared PGPNPs were surface-modified with folic acid as a site-specific tumor cell targeting agent and improve intracellular uptake via endocytosis. Fourier transform infrared spectroscopy and energy dispersive X-ray spectroscopy analyses, UV-vis spectroscopy, scanning electron microscopy, and high-resolution transmission electron microscopy images were employed to characterize their spectral and morphological properties. Fluorescence microscopy images and inductively coupled plasma analysis demonstrated the cell line labeling capability and improved targeting efficiency of folate-conjugated PGPNPs (FA-PGPNPs) toward rat brain cancer cells (C6 glioma) with 71.8% cell uptake in comparison with 28.8% for the nonconjugated ones. Nonpolar SP groups are converted to zwitterionic merocyanine isomers under UV irradiation at 365 nm and their conjugation with Au nanoparticles exhibited enhanced photogeneration of reactive oxygen species (ROS). These were confirmed by intracellular ROS analysis and cytotoxicity evaluation on malignant C6 glioma cells. Owing to the strong surface plasmon resonance absorption of gold nanoparticles, FA-PGPNPs provided elevated local photothermal efficiency under near-IR irradiation at 808 nm. The prepared multifunctional FA-PGPNPs with a comprehensive integration of prospective materials introduced promising nanoprobes with targeting ability, enhanced tumor photodynamic therapy, cell tracking, and photothermal therapy.
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Affiliation(s)
- Jaber Keyvan Rad
- Polymer Science Department , Iran Polymer & Petrochemical Institute , P.O. Box 14965/115, Tehran 1497713115 , Iran
| | - Ali Reza Mahdavian
- Polymer Science Department , Iran Polymer & Petrochemical Institute , P.O. Box 14965/115, Tehran 1497713115 , Iran
| | - Samideh Khoei
- Medical Physics Department, School of Medicine , Iran University of Medical Sciences , Tehran 1449614525 , Iran
| | - Sakine Shirvalilou
- Medical Physics Department, School of Medicine , Iran University of Medical Sciences , Tehran 1449614525 , Iran
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Photodynamic inactivation assisted by localized surface plasmon resonance of silver nanoparticles: In vitro evaluation on Escherichia coli and Streptococcus mutans. Photodiagnosis Photodyn Ther 2018; 22:191-196. [PMID: 29678678 DOI: 10.1016/j.pdpdt.2018.04.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 04/11/2018] [Accepted: 04/13/2018] [Indexed: 01/18/2023]
Abstract
Localized surface plasmon resonance (LSPR) of gold nanoparticles has been reported to increase the antimicrobial effect of the photodynamic therapy. Although silver nanoparticles (AgNPs) are an efficient growth inhibitor of microorganisms, no studies exploring LSPR of AgNPs to enhance the photodynamic inactivation (PDI) have been related. In this work, we described the LSPR phenomenon of AgNP sand investigated its interaction with riboflavin, a natural photosensitizer. We evaluated the use of AgNPs coated with pectin (p-AgNP) in riboflavin (Rb)-mediated PDI of Escherichia coli (Gram- bacteria) and Streptococcus mutans (Gram + bacteria) using a blue light-emitting diode (λ = 455 ± 20 nm) of optical power 200 mW. Irradiance was 90 mW/cm2 and radiant exposure varied according to the time exposure. Uptake of Rb and p-AgNP by the cells was evaluated by measuring the supernatant absorption spectra of the samples. We observed that LSPR of p-AgNPs was able to enhance the riboflavin photodynamic action on S. mutans but not on E. coli, probably due to the lower uptake of Rb by E. coli. Taken together, our results provide insights to explore the use of the LPRS promoted by silver nanostructures to optimize antimicrobial PDI protocols.
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Son G, Lee BI, Chung YJ, Park CB. Light-triggered dissociation of self-assembled β-amyloid aggregates into small, nontoxic fragments by ruthenium (II) complex. Acta Biomater 2018; 67:147-155. [PMID: 29221856 DOI: 10.1016/j.actbio.2017.11.048] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 11/16/2017] [Accepted: 11/28/2017] [Indexed: 10/18/2022]
Abstract
The self-assembly of β-amyloid (Aβ) peptides into highly stable plaques is a major hallmark of Alzheimer's disease. Here, we report visible light-driven dissociation of β-sheet-rich Aβ aggregates into small, nontoxic fragments using ruthenium (II) complex {[Ru(bpy)3]2+} that functions as a highly sensitive, biocompatible, photoresponsive anti-Aβ agent. According to our multiple analyses using thioflavin T, bicinchoninic acid, dynamic light scattering, atomic force microscopy, circular dichroism, and Fourier transform infrared spectroscopy, [Ru(bpy)3]2+ successfully disassembled Aβ aggregates by destabilizing the β-sheet secondary structure under illumination of white light-emitting diode light. We validated that photoexcited [Ru(bpy)3]2+ causes oxidative damages of Aβ peptides, resulting in the dissociation of Aβ aggregates. The efficacy of [Ru(bpy)3]2+ is attributed to reactive oxygen species, such as singlet oxygen, generated from [Ru(bpy)3]2+ that absorbed photon energy in the visible range. Furthermore, photoexcited [Ru(bpy)3]2+ strongly inhibited the self-assembly of Aβ monomers even at concentrations as low as 1 nM and reduced the cytotoxicity of Aβ aggregates. STATEMENT OF SIGNIFICANCE Alzheimer's disease is the most common progressive neurodegenerative disease, affecting more than 13% of the population over age 65. Over the last decades, researchers have focused on understanding the mechanism of amyloid formation, the hallmark of various amyloid diseases including Alzheimer's and Parkinson's. In this paper, we successfully demonstrate the dissociation of β-Amyloid (Aβ) aggregates into small, less-amyloidic fragments by photoexcited [Ru(bpy)3]2+ through destabilization of β-sheet secondary structure. We validated the light-triggered dissociation of amyloid structure using multiple analytical tools. Furthermore, we confirmed that photoexcited [Ru(bpy)3]2+ reduces cytotoxicity of Aβ aggregates. Our work should open a new horizon in the study of Alzheimer's amyloid aggregation by showing the potential of photoexcited dye molecules as an alternative therapeutic strategy for treating Alzheimer's disease in future.
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García Calavia P, Marín MJ, Chambrier I, Cook MJ, Russell DA. Towards optimisation of surface enhanced photodynamic therapy of breast cancer cells using gold nanoparticle–photosensitiser conjugates. Photochem Photobiol Sci 2018; 17:281-289. [DOI: 10.1039/c7pp00225d] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Surface enhanced fluorescence of zinc pthalocyanine-functionalised gold nanoparticles leads to a remarkable enhancement in photodynamic efficiency and cell death.
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Affiliation(s)
| | - María J. Marín
- School of Chemistry
- University of East Anglia
- Norwich Research Park
- Norwich
- UK
| | - Isabelle Chambrier
- School of Chemistry
- University of East Anglia
- Norwich Research Park
- Norwich
- UK
| | - Michael J. Cook
- School of Chemistry
- University of East Anglia
- Norwich Research Park
- Norwich
- UK
| | - David A. Russell
- School of Chemistry
- University of East Anglia
- Norwich Research Park
- Norwich
- UK
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