1
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Aminfar P, Yousefalizadeh G, Steele E, Chen J, Zheng G, Stamplecoskie KG. Photochemical synthesis of fluorescent Au 16(RGDC) 14 and excited state reactivity with molecular oxygen. NANOSCALE 2023; 15:13561-13566. [PMID: 37551778 DOI: 10.1039/d3nr02258g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Aqueous metal nanoclusters have emerged as effective materials for biomedical imaging and therapy. Among them, gold nanoclusters (AuNCs) have been widely studied due to their unique electronic structures. These nanoclusters are often optically impure, comprising a mixture of fluorescent clusters with different metal/ligand compositions. The polydispersity of nanoclusters makes it challenging to isolate the most stable structure, and poses further risks for eventual clinical applications. Herein, Au16L14 clusters are reported which are optically pure as assessed by fluorescence excitation-emission matrix (EEM) spectroscopy and parallel factor (PARAFAC) analysis. The reactivity of their excited state with molecular oxygen was also probed, demonstrating that the Au16L14 clusters generate type I reactive oxygen species (ROS), which can make them effective sensitizers for photodynamic therapy.
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Affiliation(s)
- Parimah Aminfar
- Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6, Canada.
| | | | - Emily Steele
- Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6, Canada.
| | - Juan Chen
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, M5G 1L7, Canada
- Institute of Biomaterials and Biomedical Engineering and Department of Medical Biophysics, University of Toronto, Toronto, Ontario, M5S 3G9, Canada
| | - Gang Zheng
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, M5G 1L7, Canada
- Institute of Biomaterials and Biomedical Engineering and Department of Medical Biophysics, University of Toronto, Toronto, Ontario, M5S 3G9, Canada
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2
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Park SE, El-Sayed NS, Shamloo K, Lohan S, Kumar S, Sajid MI, Tiwari RK. Targeted Delivery of Cabazitaxel Using Cyclic Cell-Penetrating Peptide and Biomarkers of Extracellular Matrix for Prostate and Breast Cancer Therapy. Bioconjug Chem 2021; 32:1898-1914. [PMID: 34309357 DOI: 10.1021/acs.bioconjchem.1c00319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Targeted drug delivery for cancer therapy is an emerging area of research. Cancer cells overexpress certain biomarkers that can be exploited for their targeted therapy. Cyclic cell-penetrating peptides (cCPP) are increasingly assessed for intracellular cargo delivery in cancer cells. In this study, we have conjugated cabazitaxel (CBT) to the cCPP via an ester bond to assist CBT release in the tumor's acidic environment. Integrin targeting (RGDC, TP1) and extra domain B of fibronectin (EDB-Fn) targeting (CTVRTSAD, TP2) peptides were linked to the peptide-drug conjugate (cCPP-CBT) via a disulfide bond to provide targeting ability to the conjugates until they reach the tumor site. Conjugate 11 (TP1-cCPP-CBT) and conjugate 16 (TP2-cCPP-CBT) showed approximately 3-4-fold less antiproliferative activity on integrin and EDB-FN overexpressing cancer cell lines as compared to the CBT analogue used for comparison (CBT-GA, 5). Conjugates (11 and 16) were less toxic (31-34-fold less antiproliferative activity) to the normal human embryonic kidney (HEK-293) cells as compared to CBT. The flow cytometry and quantitative confocal microscopy data further confirm the selective efficacy of conjugates (TP1-cCPP-FAM (10) and TP1-cCPP-FAM (15)) toward biomarker overexpressing cancer cells. Furthermore, the stability and release studies of conjugate 11 revealed its therapeutic potential under different conditions, such as human plasma, different pHs, and redox conditions. This conjugation strategy was proven to enhance chemotherapeutics agents' efficacy and targeting and can be applied to other chemotherapeutic agents.
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Affiliation(s)
- Shang Eun Park
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, California 92618, United States
| | - Naglaa Salem El-Sayed
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, California 92618, United States.,Cellulose and Paper Department, National Research Center, Dokki 12622, Cairo, Egypt
| | - Kiumars Shamloo
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, California 92618, United States
| | - Sandeep Lohan
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, California 92618, United States
| | - Sumit Kumar
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, Haryana 131039, India
| | - Muhammad Imran Sajid
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, California 92618, United States.,Faculty of Pharmacy, University of Central Punjab, Lahore 54000, Pakistan
| | - Rakesh Kumar Tiwari
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, California 92618, United States
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3
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Hwang JW, Jung SJ, Cheong TC, Kim Y, Shin EP, Heo I, Kim G, Cho NH, Wang KK, Kim YR. Smart Hybrid Nanocomposite for Photodynamic Inactivation of Cancer Cells with Selectivity. J Phys Chem B 2019; 123:6776-6783. [PMID: 31310131 DOI: 10.1021/acs.jpcb.9b04301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Photodynamic therapy has been efficiently applied for cancer therapy. Here, we have fabricated the folic acid (FA)- and pheophorbide A (PA)-conjugated FA/PA@Fe3O4 nanoparticle (smart hybrid nanocomposite, SHN) to enhance the photodynamic inactivation (PDI) of specific cancer cells. SHN coated with the PDI agent is designed to have selectivity for the folate receptor (FR) expressed on cancer cells. Structural characteristics and morphology of the fabricated MNPs were studied with X-ray diffraction and scanning electron microscopy. The photophysical properties of SHN were investigated with absorption, emission spectroscopies, and Fourier transform infrared spectroscopy. In addition, the magnetic property of Fe3O4 nanoparticle (MNP) can be utilized for the collection of SHNs by an external magnetic field. The photofunctionality was given by the photosensitizer, PA, which generates reactive oxygen species by irradiation of visible light. Generation of singlet oxygen was directly evaluated with time-resolved phosphorescence spectroscopy. Biocompatibility and cellular interaction of SHN were also analyzed by using various cancer cells, such as KB, HeLa, and MCF-7 cells which express different levels of FR on the surface. Cellular adsorption and the PDI effect of SHN on the various cancer cells in vitro were correlated well with the surface expression levels of FR, suggesting potential applicability of SHN on specific targeting and PDI of FR-positive cancers.
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Affiliation(s)
- Jeong-Wook Hwang
- Department of Chemistry , Yonsei University , 50 Yonsei-ro , Seodaemun-gu Seoul 03722 , Republic of Korea
| | - Seung-Jin Jung
- Department of Chemistry , Yonsei University , 50 Yonsei-ro , Seodaemun-gu Seoul 03722 , Republic of Korea
| | - Taek-Chin Cheong
- Department of Microbiology and Immunology , Seoul National University College of Medicine , 103 Daehak-ro , Jongno-gu Seoul 03080 , Republic of Korea.,Department of Biomedical Sciences , Seoul National University College of Medicine , 103 Daehak-ro , Jongno-gu Seoul 03080 , Republic of Korea
| | - Yuri Kim
- Department of Microbiology and Immunology , Seoul National University College of Medicine , 103 Daehak-ro , Jongno-gu Seoul 03080 , Republic of Korea.,Department of Biomedical Sciences , Seoul National University College of Medicine , 103 Daehak-ro , Jongno-gu Seoul 03080 , Republic of Korea
| | - Eon Pil Shin
- Department of Chemistry , Yonsei University , 50 Yonsei-ro , Seodaemun-gu Seoul 03722 , Republic of Korea
| | - Il Heo
- Department of Chemistry , Yonsei University , 50 Yonsei-ro , Seodaemun-gu Seoul 03722 , Republic of Korea
| | - Gwanghun Kim
- Department of Microbiology and Immunology , Seoul National University College of Medicine , 103 Daehak-ro , Jongno-gu Seoul 03080 , Republic of Korea.,Department of Biomedical Sciences , Seoul National University College of Medicine , 103 Daehak-ro , Jongno-gu Seoul 03080 , Republic of Korea
| | - Nam-Hyuk Cho
- Department of Microbiology and Immunology , Seoul National University College of Medicine , 103 Daehak-ro , Jongno-gu Seoul 03080 , Republic of Korea.,Department of Biomedical Sciences , Seoul National University College of Medicine , 103 Daehak-ro , Jongno-gu Seoul 03080 , Republic of Korea
| | - Kang-Kyun Wang
- Department of Chemistry , Yonsei University , 50 Yonsei-ro , Seodaemun-gu Seoul 03722 , Republic of Korea
| | - Yong-Rok Kim
- Department of Chemistry , Yonsei University , 50 Yonsei-ro , Seodaemun-gu Seoul 03722 , Republic of Korea
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Zhang R, Yan F, Chen Y. Exogenous Physical Irradiation on Titania Semiconductors: Materials Chemistry and Tumor-Specific Nanomedicine. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1801175. [PMID: 30581710 PMCID: PMC6299725 DOI: 10.1002/advs.201801175] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 09/26/2018] [Indexed: 05/04/2023]
Abstract
Titania semiconductors can be activated by external physical triggers to produce electrons (e-) and holes (h+) pairs from the energy-band structure and subsequently induce the generation of reactive oxygen species for killing cancer cells, but the traditional ultraviolet light with potential phototoxicity and low-tissue-penetrating depth as the irradiation source significantly hinders the further in vivo broad biomedical applications. Here, the very-recent development of novel exogenous physical irradiation of titania semiconductors for tumor-specific therapies based on their unique physiochemical properties, including near infrared (NIR)-triggered photothermal hyperthermia and photodynamic therapy, X-ray/Cerenkov radiation-activated deep-seated photodynamic therapy, ultrasound-triggered sonodynamic therapy, and the intriguing synergistic therapeutic paradigms by combined exogenous physical irradiations are in focus. Most of these promising therapeutic modalities are based on the semiconductor nature of titania nanoplatforms, together with their defect modulation for photothermal hyperthermia. The biocompatibility and biosafety of these titania semiconductors are also highlighted for guaranteeing their further clinical translation. Challenges and future developments of titania-based therapeutic nanoplatforms and the corresponding developed therapeutic modalities for potential clinical translation of tumor-specific therapy are also discussed and outlooked.
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Affiliation(s)
- Ruifang Zhang
- Department of UltrasoundThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan Province450052P. R. China
| | - Fei Yan
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055P. R. China
| | - Yu Chen
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of SciencesShanghai200050P. R. China
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5
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Yurt F, Sarı FA, Ince M, Colak SG, Er O, Soylu HM, Kurt CC, Avci CB, Gunduz C, Ocakoglu K. Photodynamic therapy and nuclear imaging activities of SubPhthalocyanine integrated TiO2 nanoparticles. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.08.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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6
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Dai Z, Song XZ, Cao J, He Y, Wen W, Xu X, Tan Z. Dual-stimuli-responsive TiO x /DOX nanodrug system for lung cancer synergistic therapy. RSC Adv 2018; 8:21975-21984. [PMID: 35541696 PMCID: PMC9081125 DOI: 10.1039/c8ra02899k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 06/09/2018] [Indexed: 11/21/2022] Open
Abstract
Biological applications of nanosheets are rapidly increasing currently, which introduces new possibilities to improve the efficacy of cancer chemotherapy and radiotherapy. Herein, we designed and synthesized a novel nano-drug system, doxorubicin (DOX) loaded titanium peroxide (TiO x ) nanosheets, toward the synergistic treatment of lung cancer. The precursor of TiO2 nanosheets with high specific surface area was synthesized by a modified hydrothermal process using the polymer P123 as a soft template to control the shape. TiO x nanosheets were obtained by oxidizing TiO2 nanosheets with H2O2. The anti-cancer drug DOX was effectively loaded on the surface of TiO x nanosheets. Generation of reactive oxygen species, including H2O2, ·OH and ·O2 -, was promoted from TiO x nanosheets under X-ray irradiation, which is effective for cancer radiotherapy and drug release in cancer cells. In this way, chemotherapy and radiotherapy were combined effectively for the synergistic therapy of cancers. Our results reinforce the DOX loaded TiO x nanosheets as a pH sensitive and X-ray controlled dual-stimuli-responsive drug release system. The cytotoxicity, cellular uptake, and intracellular location of the formulations were evaluated in the A549 human non-small cell lung cancer cell line. Our results showed that TiO x /DOX complexes exhibited a greater cytotoxicity toward A549 cells than free DOX. This work demonstrates that the therapeutic efficacy of DOX-loaded TiO x nanosheets is strongly dependent on their loading mode and the chemotherapeutic and radiotherapy effect is improved under X-ray illumination, which provides a significant breakthrough for future applications of TiO x as a light activated drug carrier in cancer chemotherapy and radiotherapy.
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Affiliation(s)
- Zideng Dai
- School of Petroleum and Chemical Engineering, Dalian University of Technology Panjin 124221 P. R. China
| | - Xue-Zhi Song
- School of Petroleum and Chemical Engineering, Dalian University of Technology Panjin 124221 P. R. China
| | - Junkai Cao
- School of Petroleum and Chemical Engineering, Dalian University of Technology Panjin 124221 P. R. China
| | - Yunping He
- School of Petroleum and Chemical Engineering, Dalian University of Technology Panjin 124221 P. R. China
| | - Wen Wen
- School of Petroleum and Chemical Engineering, Dalian University of Technology Panjin 124221 P. R. China
| | - Xinyu Xu
- School of Petroleum and Chemical Engineering, Dalian University of Technology Panjin 124221 P. R. China
| | - Zhenquan Tan
- School of Petroleum and Chemical Engineering, Dalian University of Technology Panjin 124221 P. R. China
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7
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Ren W, Iqbal MZ, Zeng L, Chen T, Pan Y, Zhao J, Yin H, Zhang L, Zhang J, Li A, Wu A. Black TiO 2 based core-shell nanocomposites as doxorubicin carriers for thermal imaging guided synergistic therapy of breast cancer. NANOSCALE 2017; 9:11195-11204. [PMID: 28749498 DOI: 10.1039/c7nr04039c] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
TiO2 nanomaterials have been widely used for anticancer drug carriers and UV/980 nm NIR triggered cancer synergistic platforms. However, traditional pure TiO2 nanocarriers encounter some serious drawbacks, such as low drug loading ability, limited tissue penetration of UV light, and heating effect of 980 nm NIR on normal tissue, which obstruct their further application in cancer treatment. To overcome those challenges, novel mesoporous silica (mSiO2) coated black TiO2 core-shell nanocomposites are designed and constructed as doxorubicin carriers for 808 nm NIR triggered thermal imaging guided photothermal therapy combined chemotherapy of breast cancer. Properties of the nanocomposites such as micro-morphology, size, drug loading ability and release, targeting performance, and therapy efficiency in vitro and in vivo were evaluated. The results indicated the core-shell nanocomposites with dramatically increased loading ability were pH-responsive/NIR-accelerated doxorubicin release nanocarriers and showed synergistic breast cancer treatment in vitro and in vivo. This study verifies that the newly prepared mSiO2 coated black TiO2 core-shell nanocarriers can overcome the limitations of traditional TiO2 nanocarriers and thus improve and broaden usage of TiO2 nanoparticles in nanomedicine.
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Affiliation(s)
- Wenzhi Ren
- CAS Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province & Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 ZhongGuan West Road, 315201, Ningbo, China.
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8
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Xu Y, Wei MT, Ou-Yang HD, Walker SG, Wang HZ, Gordon CR, Guterman S, Zawacki E, Applebaum E, Brink PR, Rafailovich M, Mironava T. Exposure to TiO2 nanoparticles increases Staphylococcus aureus infection of HeLa cells. J Nanobiotechnology 2016; 14:34. [PMID: 27102228 PMCID: PMC4840899 DOI: 10.1186/s12951-016-0184-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 04/10/2016] [Indexed: 01/02/2023] Open
Abstract
Background Titanium dioxide (TiO2) is one of the most common nanoparticles found in industry ranging from food additives to energy generation. Approximately four million tons of TiO2 particles are produced worldwide each year with approximately 3000 tons being produced in nanoparticulate form, hence exposure to these particles is almost certain. Results Even though TiO2 is also used as an anti-bacterial agent in combination with UV, we have found that, in the absence of UV, exposure of HeLa cells to TiO2 nanoparticles significantly increased their risk of bacterial invasion. HeLa cells cultured with 0.1 mg/ml rutile and anatase TiO2 nanoparticles for 24 h prior to exposure to bacteria had 350 and 250 % respectively more bacteria per cell. The increase was attributed to bacterial polysaccharides absorption on TiO2 NPs, increased extracellular LDH, and changes in the mechanical response of the cell membrane. On the other hand, macrophages exposed to TiO2 particles ingested 40 % fewer bacteria, further increasing the risk of infection. Conclusions In combination, these two factors raise serious concerns regarding the impact of exposure to TiO2 nanoparticles on the ability of organisms to resist bacterial infection. Electronic supplementary material The online version of this article (doi:10.1186/s12951-016-0184-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yan Xu
- Department of Materials Science and Engineering, Stony Brook University, Stony Brook, NY, USA
| | - Ming-Tzo Wei
- Department of Bioengineering, Lehigh University, Bethlehem, PA, USA
| | - H Daniel Ou-Yang
- Department of Bioengineering, Lehigh University, Bethlehem, PA, USA
| | - Stephen G Walker
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Hong Zhan Wang
- Department of Physiology and Biophysics, Stony Brook University, Stony Brook, NY, USA
| | - Chris R Gordon
- Department of Physiology and Biophysics, Stony Brook University, Stony Brook, NY, USA
| | | | - Emma Zawacki
- University of California at Los Angeles, Los Angeles, CA, USA
| | | | - Peter R Brink
- Department of Physiology and Biophysics, Stony Brook University, Stony Brook, NY, USA
| | - Miriam Rafailovich
- Department of Materials Science and Engineering, Stony Brook University, Stony Brook, NY, USA
| | - Tatsiana Mironava
- Department of Materials Science and Engineering, Stony Brook University, Stony Brook, NY, USA.
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9
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Duncan DA, Pfisterer JHK, Deimel PS, Acres RG, Fritton M, Feulner P, Barth JV, Allegretti F. Formation of a thermally stable bilayer of coadsorbed intact and deprotonated thymine exploiting the surface corrugation of rutile TiO2(110). Phys Chem Chem Phys 2016; 18:20433-42. [DOI: 10.1039/c6cp02541b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Adsorption of thymine on rutile TiO2(110) leads to a room temperature stable bilayer which follows the corrugation of the oxide surface and consists of both intact and deprotonated molecules.
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Affiliation(s)
- D. A. Duncan
- Physik-Department E20
- Technische Universität München
- D-85748 Garching
- Germany
- Diamond Light Source
| | - J. H. K. Pfisterer
- Physik-Department E20
- Technische Universität München
- D-85748 Garching
- Germany
| | - P. S. Deimel
- Physik-Department E20
- Technische Universität München
- D-85748 Garching
- Germany
| | - R. G. Acres
- Elettra-Sincrotrone Trieste
- 34149 Basovizza
- Italy
| | | | - P. Feulner
- Physik-Department E20
- Technische Universität München
- D-85748 Garching
- Germany
| | - J. V. Barth
- Physik-Department E20
- Technische Universität München
- D-85748 Garching
- Germany
| | - F. Allegretti
- Physik-Department E20
- Technische Universität München
- D-85748 Garching
- Germany
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10
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Xu H, Zhang X, Han R, Yang P, Ma H, Song Y, Lu Z, Yin W, Wu X, Wang H. Nanoparticles in sonodynamic therapy: state of the art review. RSC Adv 2016. [DOI: 10.1039/c6ra06862f] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The different types and advantages of nanoparticles in sonodynamic therapy.
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Affiliation(s)
- Hongyan Xu
- Department of Pharmacy
- People′s Hospital of Linzi District
- Linzi
- China
| | - Xia Zhang
- Department of Pharmacy
- People′s Hospital of Linzi District
- Linzi
- China
| | - Rubing Han
- Department of Pharmacy
- People′s Hospital of Linzi District
- Linzi
- China
| | - Peimin Yang
- Department of Pharmacy
- People′s Hospital of Linzi District
- Linzi
- China
| | - Haifeng Ma
- Department of Pharmacy
- People′s Hospital of Linzi District
- Linzi
- China
| | - Yan Song
- Department of Pharmacy
- People′s Hospital of Linzi District
- Linzi
- China
| | - Zhichao Lu
- Department of Pharmacy
- People′s Hospital of Linzi District
- Linzi
- China
| | - Weidong Yin
- Department of Pharmacy
- People′s Hospital of Linzi District
- Linzi
- China
| | - XiangXia Wu
- Department of Pharmacy
- People′s Hospital of Linzi District
- Linzi
- China
| | - Hui Wang
- Department of Pharmacy
- People′s Hospital of Linzi District
- Linzi
- China
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11
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Gao X, Wang Y, Peng S, Yue B, Fan C, Chen W, Li X. Comparative toxicities of bismuth oxybromide and titanium dioxide exposure on human skin keratinocyte cells. CHEMOSPHERE 2015; 135:83-93. [PMID: 25917605 DOI: 10.1016/j.chemosphere.2015.03.075] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2014] [Revised: 03/05/2015] [Accepted: 03/14/2015] [Indexed: 05/07/2023]
Abstract
Nano-sized bismuth oxybromide (BiOBr) particles are being considered for applications within the semiconductor industry. However, little is known about their potential impact on human health. In this study, we comparatively investigated the cytotoxicity of BiOBr and titanium dioxide (TiO2) nanoparticles (NPs) using human skin keratinocyte cell line (HaCaT) as a research model. Results indicate that lamellar-shaped BiOBr (length: 200 nm, width: 150 nm, and an average thickness: around 15 nm) has less toxic effects on cell viability and intracellular organelles than TiO2 (P25) NPs. BiOBr mainly induced late cell apoptosis, while for TiO2, both early apoptosis and late apoptosis were involved. Cell cycle arrest was found in cells on both NPs exposure, and more prominent in TiO2-treated cells. More cellular uptake was achieved after TiO2 exposure, particularly at 10 μg mL(-1), presence of TiO2 resulted in more than 2-fold increase in cellular granularity compared with BiOBr. Furthermore, TiO2 had a high potential to generate intracellular reactive oxygen species (ROS) in cells, where a 2.7-fold increase in TiO2 group and 2.0-fold increase in BiOBr group at the same concentration of 25 μg mL(-1). Higher cellular uptake and ROS stimulation should contribute to the more hazards of TiO2 than BiOBr NPs. This knowledge is a crucial component in the environmental and human hazard assessment of BiOBr and TiO2 NPs.
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Affiliation(s)
- Xiaoya Gao
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Yawen Wang
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Shiqi Peng
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Bin Yue
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Caimei Fan
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China.
| | - Weiyi Chen
- Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Xiaona Li
- Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
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12
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Ren W, Yan Y, Zeng L, Shi Z, Gong A, Schaaf P, Wang D, Zhao J, Zou B, Yu H, Chen G, Brown EMB, Wu A. A Near Infrared Light Triggered Hydrogenated Black TiO2 for Cancer Photothermal Therapy. Adv Healthc Mater 2015; 4:1526-36. [PMID: 26010821 DOI: 10.1002/adhm.201500273] [Citation(s) in RCA: 200] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 04/30/2015] [Indexed: 01/19/2023]
Abstract
White TiO2 nanoparticles (NPs) have been widely used for cancer photodynamic therapy based on their ultraviolet light-triggered properties. To date, biomedical applications using white TiO2 NPs have been limited, since ultraviolet light is a well-known mutagen and shallow penetration. This work is the first report about hydrogenated black TiO2 (H-TiO2 ) NPs with near infrared absorption explored as photothermal agent for cancer photothermal therapy to circumvent the obstacle of ultraviolet light excitation. Here, it is shown that photothermal effect of H-TiO2 NPs can be attributed to their dramatically enhanced nonradiative recombination. After polyethylene glycol (PEG) coating, H-TiO2 -PEG NPs exhibit high photothermal conversion efficiency of 40.8%, and stable size distribution in serum solution. The toxicity and cancer therapy effect of H-TiO2 -PEG NPs are relative systemically evaluated in vitro and in vivo. The findings herein demonstrate that infrared-irradiated H-TiO2 -PEG NPs exhibit low toxicity, high efficiency as a photothermal agent for cancer therapy, and are promising for further biomedical applications.
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Affiliation(s)
- Wenzhi Ren
- Key Laboratory of Magnetic Materials and Devices & Division of Functional Materials and Nanodevices; Ningbo Institute of Materials Technology and Engineering; Chinese Academy of Sciences; 1219 ZhongGuan West Road Ningbo 315201 China
| | - Yong Yan
- Chair Materials for Electrical Engineering and Electronics; Institute of Materials Engineering and Institute of Micro- and Nanotechnologies MarcoNano, TU Ilmenau; Gustav-Kirchhoff-Str. 5 Ilmenau 98693 Germany
| | - Leyong Zeng
- Key Laboratory of Magnetic Materials and Devices & Division of Functional Materials and Nanodevices; Ningbo Institute of Materials Technology and Engineering; Chinese Academy of Sciences; 1219 ZhongGuan West Road Ningbo 315201 China
| | - Zhenzhi Shi
- Key Laboratory of Magnetic Materials and Devices & Division of Functional Materials and Nanodevices; Ningbo Institute of Materials Technology and Engineering; Chinese Academy of Sciences; 1219 ZhongGuan West Road Ningbo 315201 China
| | - An Gong
- Key Laboratory of Magnetic Materials and Devices & Division of Functional Materials and Nanodevices; Ningbo Institute of Materials Technology and Engineering; Chinese Academy of Sciences; 1219 ZhongGuan West Road Ningbo 315201 China
| | - Peter Schaaf
- Chair Materials for Electrical Engineering and Electronics; Institute of Materials Engineering and Institute of Micro- and Nanotechnologies MarcoNano, TU Ilmenau; Gustav-Kirchhoff-Str. 5 Ilmenau 98693 Germany
| | - Dong Wang
- Chair Materials for Electrical Engineering and Electronics; Institute of Materials Engineering and Institute of Micro- and Nanotechnologies MarcoNano, TU Ilmenau; Gustav-Kirchhoff-Str. 5 Ilmenau 98693 Germany
| | - Jinshun Zhao
- Public Health Department; Ningbo University; 818 Fenghua Road Ningbo 315211 China
| | - Baobo Zou
- Public Health Department; Ningbo University; 818 Fenghua Road Ningbo 315211 China
| | - Hongsheng Yu
- Affiliated Hospital of Medical School; Ningbo University; 247 People Road Ningbo 315020 China
| | - Ge Chen
- College of Environmental & Energy Engineering; Beijing University of Technology; 100 Pingleyuan Beijing 100124 China
| | | | - Aiguo Wu
- Key Laboratory of Magnetic Materials and Devices & Division of Functional Materials and Nanodevices; Ningbo Institute of Materials Technology and Engineering; Chinese Academy of Sciences; 1219 ZhongGuan West Road Ningbo 315201 China
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Li YL, Meng YF, Zhang ZM, Jiang Y. Detecting the oligomeric state of Escherichia coli MutS from its geometric architecture observed by an atomic force microscope at a single molecular level. J Phys Chem B 2014; 118:9218-24. [PMID: 25029278 DOI: 10.1021/jp504644r] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Atomic force microscopy (AFM), which provides true 3D surface topography, can also be used to determine the geometric parameters of proteins quantitatively at a single molecular level. In this paper, two different kinds of Escherichia coli MutS (MutS) protein were observed using AFM, and the geometric parameters of the proteins such as height, perimeter, area, and volume were measured. On the basis of these measurements, the molecular weight, association constant, oligomeric state, and orientation of MutS proteins on a mica surface were deduced. The oligomerization mechanism of MutS was analyzed in detail, and the results show that two different kinds of interactions between MutS protein may be involved in oligomerization. Our results also show that AFM imaging is an accurate method for analyzing the geometric structures of a single protein quantitatively at a single-molecule level.
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Affiliation(s)
- Yan-Li Li
- School of Chemistry and Chemical Engineering, Southeast University , No. 2 Dongnandaxue Road, Jiangning, Nanjing, Jiangsu 211189, China
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