1001
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Zhan J, Ma Z, Wang D, Li X, Li X, Le L, Kang A, Hu P, She L, Yang F. Magnetic and pH dual-responsive mesoporous silica nanocomposites for effective and low-toxic photodynamic therapy. Int J Nanomedicine 2017; 12:2733-2748. [PMID: 28442903 PMCID: PMC5396969 DOI: 10.2147/ijn.s127528] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Nonspecific targeting, large doses and phototoxicity severely hamper the clinical effect of photodynamic therapy (PDT). In this work, superparamagnetic Fe3O4 mesoporous silica nanoparticles grafted by pH-responsive block polymer polyethylene glycol-b-poly(aspartic acid) (PEG-b-PAsp) were fabricated to load the model photosensitizer rose bengal (RB) in the aim of enhancing the efficiency of PDT. Compared to free RB, the nanocomposites (polyethylene glycol-b-polyaspartate-modified rose bengal-loaded magnetic mesoporous silica [RB−MMSNs]) could greatly enhance the cellular uptake due to their effective endocytosis by mouse melanoma B16 cell and exhibited higher induced apoptosis although with little dark toxicity. RB−MMSNs had little dark toxicity and even much could be facilitated by magnetic field in vitro. RB−MMSNs demonstrated 10 times induced apoptosis efficiency than that of free RB at the same RB concentration, both by cell counting kit-8 (CCK-8) result and apoptosis detection. Furthermore, RB−MMSNs-mediated PDT in vivo on tumor-bearing mice showed steady physical targeting of RB−MMSNs to the tumor site; tumor volumes were significantly reduced in the magnetic field with green light irradiation. More importantly, the survival time of tumor-bearing mice treated with RB−MMSNs was much prolonged. Henceforth, polyethylene glycol-b-polyaspartate-modified magnetic mesoporous silica (MMSNs) probably have great potential in clinical cancer photodynamic treatment because of their effective and low-toxic performance as photosensitizers’ vesicles.
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Affiliation(s)
- Jieqiong Zhan
- Department of Pharmacy, Hebei North University, Zhangjiakou, Hebei.,Department of Inorganic Chemistry, School of Pharmacy
| | - Zhiqiang Ma
- Department of Inorganic Chemistry, School of Pharmacy
| | - Dan Wang
- Department of Obstetrics and Gynecology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Xinfang Li
- Department of Inorganic Chemistry, School of Pharmacy
| | - Xiangui Li
- Department of Inorganic Chemistry, School of Pharmacy
| | - Lijing Le
- Department of Inorganic Chemistry, School of Pharmacy
| | - Anfeng Kang
- Department of Inorganic Chemistry, School of Pharmacy
| | - Pengwei Hu
- Department of Pharmacy, Hebei North University, Zhangjiakou, Hebei
| | - Lan She
- Department of Inorganic Chemistry, School of Pharmacy
| | - Feng Yang
- Department of Pharmacy, Hebei North University, Zhangjiakou, Hebei.,Department of Inorganic Chemistry, School of Pharmacy
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1002
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Novel therapeutics for bacterial infections. Emerg Top Life Sci 2017; 1:85-92. [PMID: 33525811 DOI: 10.1042/etls20160017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 02/22/2017] [Accepted: 02/22/2017] [Indexed: 01/28/2023]
Abstract
The relentless increase in antibiotic resistance among all major groups of bacterial pathogens shows no sign of abating. The situation is exacerbated by a marked decline in the number of new antibiotics entering the marketplace. It is essential that new ways to treat severe bacterial infections are investigated before the antibiotic well runs dry. This review covers many promising approaches, some novel and some based on old ideas that were not considered viable when clinicians were able to exploit a wide palette of cheap and effective antibacterial chemotherapeutics. These approaches include the use of photosensitive dyes, bacteriophage and phage-encoded proteins, and agents that compromise virulence and antibiotic-resistance machineries. I also make a case for continuing in some form with tried and trusted platforms for drug discovery that served society well in the past.
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1003
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Büyükekşi SI, Topal SZ, Atilla D. Novel Silicon Phthalocyanines Bearing Triethylene Glycol Groups: Photophysical and Photochemical Properties as well as pH-Induced Spectral Behaviour. J Fluoresc 2017; 27:1257-1266. [DOI: 10.1007/s10895-017-2057-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 02/19/2017] [Indexed: 11/28/2022]
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1004
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Deng K, Chen Y, Li C, Deng X, Hou Z, Cheng Z, Han Y, Xing B, Lin J. 808 nm light responsive nanotheranostic agents based on near-infrared dye functionalized manganese ferrite for magnetic-targeted and imaging-guided photodynamic/photothermal therapy. J Mater Chem B 2017; 5:1803-1814. [PMID: 32263921 DOI: 10.1039/c6tb03233h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Near-infrared (NIR) light induced phototherapy has attracted considerable attention due to its deep therapeutic depth. To improve the therapeutic outcome and address non-selective side effects, the combination of complementary phototherapeutic strategies in a single nanoagent with precise targeting ability may provide an effective approach for cancer therapy. Thus we have developed an 808 nm NIR light triggered nanosystem based on IR806 dye functionalized MnFe2O4 (MFO-IR) for synchronous magnetic targeted and magnetic resonance (MR) imaging guided in vivo photodynamic/photothermal synergistic therapy. In this construction strategy, carboxylic acid functionalized NIR dye IR806 is explored as an 808 nm NIR-excited photosensitizer (PS) for the first time, which can also provide a conjugation site for MnFe2O4 nanoparticles (MFO NPs). Here, monodisperse MFO NPs have multiple capacities as dye carriers, targeting ligands, MRI contrast agents and photothermal agents. MFO-IR nanocomposites (NCs) with negligible toxicity present efficient NIR-mediated photothermal damage and ROS cytotoxicity via the relevant in vitro experimental investigations. With ideal magnetic targeting effects and remarkable NIR light-responsive properties, these MFO-IR NCs exhibit high in vivo tumor localization and could destroy subcutaneous solid tumors completely under an external magnetic field and 808 nm laser irradiation. Consequently, this magnetic nanosystem has great potential for simultaneous diagnosis and precise cancer phototherapy.
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Affiliation(s)
- Kerong Deng
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
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1005
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Tang Y, Chen H, Chang K, Liu Z, Wang Y, Qu S, Xu H, Wu C. Photo-Cross-Linkable Polymer Dots with Stable Sensitizer Loading and Amplified Singlet Oxygen Generation for Photodynamic Therapy. ACS APPLIED MATERIALS & INTERFACES 2017; 9:3419-3431. [PMID: 28067486 DOI: 10.1021/acsami.6b14325] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Photodynamic therapy (PDT) is a promising treatment modality for clinical cancer therapy. However, the therapeutic effect of PDT is strongly dependent on the property of photosensitizer. Here, we developed photo-cross-linkable semiconductor polymer dots doped with photosensitizer Chlorin e6 (Ce6) to construct a nanoparticle platform for photodynamic therapy. Photoreactive oxetane groups were attached to the side chains of the semiconductor polymer. After photo-cross-linking reaction, the Ce6-doped Pdots formed an interpenetrated structure to prevent Ce6 leaching out from the Pdot matrix. Spectroscopic characterizations revealed an efficient energy transfer from the polymer to Ce6 molecules, resulting in amplified generation of singlet oxygen. We evaluated the cellular uptake, cytotoxicity, and photodynamic effect of the Pdots in gastric adenocarcinoma cells. In vitro photodynamic experiments indicated that the Ce6-doped Pdots (∼10 μg/mL) effectively killed the cancer cells under low dose of light irradiation (∼60 J/cm2). Furthermore, in vivo photodynamic experiments were carried out in tumor-bearing nude mice, which indicated that the Pdot photosensitizer apparently suppressed the growth of solid tumors. Our results demonstrate that the photo-cross-linkable Pdots doped with photosensitizer are promising for photodynamic cancer treatment.
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Affiliation(s)
- Ying Tang
- Department of Gastroenterology, The First Hospital of Jilin University , Changchun 130021, China
| | - Haobin Chen
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, China
| | - Kaiwen Chang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, China
| | - Zhihe Liu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, China
| | - Yu Wang
- Department of Gastroenterology, The First Hospital of Jilin University , Changchun 130021, China
| | - Songnan Qu
- State Key Laboratory of Luminescence and Applications, Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun 130033, China
| | - Hong Xu
- Department of Gastroenterology, The First Hospital of Jilin University , Changchun 130021, China
| | - Changfeng Wu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, China
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1006
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Fabregat V, Burguete MI, Luis SV, Galindo F. Improving photocatalytic oxygenation mediated by polymer supported photosensitizers using semiconductor quantum dots as ‘light antennas’. RSC Adv 2017. [DOI: 10.1039/c7ra06036j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Semiconductor nanoparticles (quantum dots) sensitize the photochemical generation of singlet oxygen at the surface of a photoactive polymer.
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Affiliation(s)
- Víctor Fabregat
- Universitat Jaume I
- Departamento de Química Inorgánica y Orgánica
- Spain
| | | | - Santiago V. Luis
- Universitat Jaume I
- Departamento de Química Inorgánica y Orgánica
- Spain
| | - Francisco Galindo
- Universitat Jaume I
- Departamento de Química Inorgánica y Orgánica
- Spain
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1007
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Cao Y, Liu H, Yuan Z, Wei G. Two New Oxovanadium(IV) Compounds Containing Amino Acid Schiff Base and 1,10-Bathophenanthroline Ligands: Syntheses, Crystal Structures, and In Vitro Evaluation of the Anticancer Activities. Aust J Chem 2017. [DOI: 10.1071/ch16538] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Two new oxovanadium(iv) compounds containing 1,10-bathophenanthroline (Bphen) and amino Schiff base derivatives [VO(hnd-napha)(Bphen)] (1) and [VO(o-van-met)(Bphen)] (2) were synthesised (where hnd-napha and o-van-met are N-Schiff bases derived from the reaction of 2-hydroxy-1-naphthaldehyde with 3-(1-naphthyl)-l-alanine and o-vanillin with l-methionine, respectively). These compounds were characterised by elemental analysis, infrared spectroscopy, high-resolution mass spectrometry, and single-crystal X-ray diffraction (XRD). Both compounds showed low molar conductance values, indicating that they are non-electrolytes. The XRD results showed that the VIV atoms in both compounds existed in the VO3N3 coordination geometry with Schiff base and Bphen ligands. The in vitro anticancer activities of compounds 1 and 2 were evaluated against A549 human lung carcinoma and HepG2 human hepatoma cell lines using a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, and the results revealed that both compounds were cytotoxic with half maximal inhibitory concentration (IC50) values in the range of 8.22 ± 1.0 to 94.89 ± 3.2 μmol L−1. Notably, compound 2 exhibited much better anticancer activity in vitro against A549 cells (8.22 ± 1 μmol L−1) than [VO(acac)2] (24 ± 6 μmol L−1) or any of our previously reported oxovanadium(iv) compounds, making it comparable in activity to cisplatin (3.1 ± 0.5 μmol L−1). These results therefore suggest that compound 2 could be used as a promising lead for the development of anticancer agents for the treatment of lung cancer.
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1008
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Hemmer E, Acosta-Mora P, Méndez-Ramos J, Fischer S. Optical nanoprobes for biomedical applications: shining a light on upconverting and near-infrared emitting nanoparticles for imaging, thermal sensing, and photodynamic therapy. J Mater Chem B 2017; 5:4365-4392. [DOI: 10.1039/c7tb00403f] [Citation(s) in RCA: 150] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Shining a light on spectrally converting lanthanide (Ln3+)-doped nanoparticles: progress, trends, and challenges in Ln3+-nanoprobes for near-infrared bioimaging, nanothermometry, and photodynamic therapy.
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Affiliation(s)
- E. Hemmer
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa (ON)
- Canada
| | - P. Acosta-Mora
- Departamento de Fíísica
- Universidad de La Laguna
- Tenerife
- Spain
| | - J. Méndez-Ramos
- Departamento de Fíísica
- Universidad de La Laguna
- Tenerife
- Spain
| | - S. Fischer
- Department of Materials Science and Engineering, University of California—Berkeley
- Berkeley
- USA
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1009
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Dang J, He H, Chen D, Yin L. Manipulating tumor hypoxia toward enhanced photodynamic therapy (PDT). Biomater Sci 2017; 5:1500-1511. [DOI: 10.1039/c7bm00392g] [Citation(s) in RCA: 199] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This mini-review summarizes various methods for overcoming or utilizing hypoxia for enhanced PDT.
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Affiliation(s)
- Juanjuan Dang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices
- Institute of Functional Nano and Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- P.R. China
| | - Hua He
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices
- Institute of Functional Nano and Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- P.R. China
| | - Donglai Chen
- Department of Thoracic Surgery
- Shanghai Pulmonary Hospital
- Tongji University School of Medicine
- Shanghai
- P.R. China
| | - Lichen Yin
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices
- Institute of Functional Nano and Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- P.R. China
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1010
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Liu J, Jin C, Yuan B, Chen Y, Liu X, Ji L, Chao H. Enhanced cancer therapy by the marriage of metabolic alteration and mitochondrial-targeted photodynamic therapy using cyclometalated Ir(iii) complexes. Chem Commun (Camb) 2017; 53:9878-9881. [DOI: 10.1039/c7cc05518h] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of DCA-Ir(iii) co-drug complexes were demonstrated to act in synergy by sensitizing cancer cell for PDT to achieve cancer-specifically enhanced two-photon PDT in the hypoxic muticellular tumor spheroids.
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Affiliation(s)
- Jiangping Liu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Chengzhi Jin
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Bo Yuan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Yu Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Xingguo Liu
- Guangzhou Institute of Biomedicine and Health
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
| | - Liangnian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Hui Chao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
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1011
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Cai HJ, Shen TT, Zhang J, Shan CF, Jia JG, Li X, Liu WS, Tang Y. A core–shell metal–organic-framework (MOF)-based smart nanocomposite for efficient NIR/H2O2-responsive photodynamic therapy against hypoxic tumor cells. J Mater Chem B 2017; 5:2390-2394. [DOI: 10.1039/c7tb00314e] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this work, core–shell MOF-based smart nanocomposite UCNPs/MB@ZIF-8@catalase has been constructed for bio-imaging and efficient NIR/H2O2-responsive photodynamic therapy against hypoxic tumor cells.
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Affiliation(s)
- Hui-Juan Cai
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Ting-Ting Shen
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Jian Zhang
- Department of Chemistry
- University of Nebraska-Lincoln
- Lincoln
- USA
| | - Chang-Fu Shan
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Jian-Guo Jia
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Xiang Li
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Wei-Sheng Liu
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Yu Tang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
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1012
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Mei X, Liang R, Peng L, Hu T, Wei M. Layered double hydroxide bio-composites toward excellent systematic anticancer therapy. J Mater Chem B 2017; 5:3212-3216. [DOI: 10.1039/c7tb00209b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A supramolecular bio-composite with an excellent chemotherapy–PDT synergistic anticancer effect is fabricated and shows potential application in the field of cancer therapy.
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Affiliation(s)
- Xuan Mei
- State Key Laboratory of Chemical Resource Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Ruizheng Liang
- State Key Laboratory of Chemical Resource Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Liuqi Peng
- State Key Laboratory of Chemical Resource Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Tongyang Hu
- State Key Laboratory of Chemical Resource Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Min Wei
- State Key Laboratory of Chemical Resource Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
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