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Cancer thermal therapy nano

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https://www.readbyqxmd.com/read/29663923/selenium-and-iron-oxide-nanocomposites-for-magnetically-targeted-anti-cancer-applications
#1
Halla Laufey Hauksdóttir, Thomas J Webster
Iron oxide nanoparticles (IONP) are already well-established in the medical field due to their ability to improve contrast in magnetic resonance imaging (MRI) and for their external magnetic control in the body. Moreover, selenium has been shown to kill numerous cancer cells at lower concentrations that IONP (e.g., 1 μg/ml). Selenium is a trace mineral of growing interest in cancer treatment since it is an essential nutrient in the human body and can interfere with thiolcontaining proteins necessary for cancer cells to function...
March 1, 2018: Journal of Biomedical Nanotechnology
https://www.readbyqxmd.com/read/29493665/lanthanide-doped-upconversion-nanoparticles-complexed-with-nano-oxide-graphene-used-for-upconversion-fluorescence-imaging-and-photothermal-therapy
#2
Po Li, Yue Yan, Binlong Chen, Pan Zhang, Siling Wang, Jing Zhou, Haiming Fan, Yiguang Wang, Xiaonan Huang
In recent years, multifunctional nanoparticles have attracted much research interest in various biomedical applications such as biosensors, diagnosis, and drug delivery systems. In this study, we report an NIR imaging diagnosis and therapy nanoplatform which is developed by complexing upconversion nanoparticles (UCNP@OA) NaLuF4 :Er3+ ,Yb3+ with nanographene oxide (NGO). The obtained nanocomposites UCNP@NGO showed excellent stability and low cell toxicity, which not only acted as upconversion luminescence (UCL) probes for tumor imaging, but also served as therapy agents by converting laser energy into thermal energy for photothermal therapy (PTT) with high photothermal conversion efficiency...
March 1, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29486617/selective-apoptosis-induction-in-cancer-cells-using-folate-conjugated-gold-nanoparticles-and-controlling-the-laser-irradiation-conditions
#3
Elham Zeinizade, Mousa Tabei, Ali Shakeri-Zadeh, Habib Ghaznavi, Neda Attaran, Ali Komeili, Behafarid Ghalandari, Shayan Maleki, S Kamran Kamrava
In this study, we explained in detail a targeted nano-photo-thermal therapy (NPTT) method to induce selective apoptosis in cancer cells. Folate-conjugated gold nanoparticles (F-AuNPs) were synthesized by tailoring the surface of AuNPs with folic acid to enhance the specificity of NPTT. KB cancer cells, as a folate receptor over-expressing cell line, and L929 normal cells with low level of folate receptors were incubated with the synthesized F-AuNPs and then irradiated with various laser intensities and exposure durations...
February 27, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29459928/nano-graphene-oxide-ucnp-ce6-covalently-constructed-nanocomposites-for-nir-mediated-bioimaging-and-ptt-pdt-combinatorial-therapy
#4
Arif Gulzar, Jiating Xu, Dan Yang, Liangge Xu, Fei He, Shili Gai, Piaoping Yang
NIR light-induced imaging-guided cancer therapy is an encouraging route in the cancer theranostic field. Herein, we describe a novel nanoscale proposal, which is established by covalently implanting core-shell structured upconversion nanoparticles (UCNPs) with nanographene oxide (NGO) by a process utilizing polyethylene glycol (PEG), and consequently loading Chlorin e6 (Ce6) onto the surface of NGO. The acquired NGO-UCNP-Ce6 (NUC) nanocomposites can not only be employed as upconversion luminescence (UCL) imaging probes of cells and whole-body animals with high contrast for diagnosis, but also can generate reactive oxygen species (ROS) under 808 nm light excitation for photodynamic therapy (PDT); over and above, they can swiftly and proficiently translate the 808 nm photon into thermal energy for photothermal therapy (PTT)...
February 20, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29382198/gold-nanorods-conjugated-porous-silicon-nanoparticles-encapsulated-in-calcium-alginate-nano-hydrogels-using-microemulsion-templates
#5
Hongbo Zhang, Yueqi Zhu, Liangliang Qu, Huayin Wu, Haixin Kong, Zhou Yang, Dong Chen, Ermei Makila, Jarno J Salonen, Hélder A Santos, Mingtan Hai, David A Weitz
Porous silicon nanoparticles (PSiNPs) and gold nanorods (AuNRs) can be used as biocompatible nanocarriers for delivery of therapeutics, but undesired leakage makes them inefficient. By encapsulating the PSiNPs and AuNRs in a hydrogel shell, we create a biocompatible functional nanocarrier that enables sustained release of therapeutics. Here, we report the fabrication of AuNRs conjugated PSi nanoparticles (AuNRsPSiNPs) through two-steps chemical reaction for high-capacity loading of hydrophobic and hydrophilic therapeutics with photothermal property...
January 31, 2018: Nano Letters
https://www.readbyqxmd.com/read/29101365/biomineral-nano-theranostic-agent-for-magnetic-resonance-image-guided-augmented-radiofrequency-ablation-of-liver-tumor
#6
Anusha Ashokan, Vijay Harish Somasundaram, Genekehal Siddaramana Gowd, Ida M Anna, Giridharan L Malarvizhi, Badrinathan Sridharan, Rupal B Jobanputra, Reshmi Peethambaran, A K K Unni, Shantikumar Nair, Manzoor Koyakutty
Theranostic nanoparticles based on biocompatible mineral compositions can significantly improve the translational potential of image guided cancer nano-therapy. Here, we report development of a single-phase calcium phosphate biomineral nanoparticle (nCP) with dual-mode magnetic resonance contrast (T1-T2) together with radiofrequency (RF) mediated thermal response suitable for image-guided RF ablation of cancer. The nanoparticles (NP) are engineered to provide dual MR contrast by an optimized doping concentration (4...
November 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28966368/in-situ-formation-of-holmium-oxide-in-pores-of-mesoporous-carbon-nanoparticles-as-substrates-for-neutron-activatable-radiotherapeutics
#7
Junghyun Kim, Zhi-Xiang Luo, Yue Wu, Xiuling Lu, Michael Jay
Radionuclide therapy with nano-sized carriers is a very promising approach to treat various types of cancer. The preparation of radioactive nanocarriers can be achieved with minimum handling using a neutron-activation approach. However, the nanocarrier material must possess certain characteristics such as low density, heat-resistance, high metal adsorption, easy surface modification and low toxicity in order to be useful. Mesoporous Carbon Nanoparticles (MCNs) in which holmium oxide is formed in their pores by a wet-impregnation process are investigated as a suitable material for this application...
June 2017: Carbon
https://www.readbyqxmd.com/read/28699509/combination-of-multifunctional-nanoparticles-and-interventional-techniques-makes-each-other-going-further-in-the-field-of-cancer-treatment
#8
Haibo Shao, Tengchuang Ma, Duo Hong, Wenhan Xu, Shuai Li, Ronald S Arellano, Ke Xu
Nano-oncology and interventional oncology are both rapidly emerging fields in loco-regional cancer therapies. Synergistic combination of both fields offers drastic improvement in performance and efficacy of cancer killings. Interventional techniques such selective arterial catheterization, irreversible electroporation (IRE) and radiofrequency ablation (RFA) had dramatically enhance the cancer targetability and anticancer efficacy of nanoparticles (NPs). Furthermore, there is synergistic effect by using different interventional techniques together on NPs assisted cancer treatment...
July 10, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28580979/design-of-tpgs-functionalized-cu3bis3-nanocrystals-with-strong-absorption-in-the-second-near-infrared-window-for-radiation-therapy-enhancement
#9
Jiangfeng Du, Xiaopeng Zheng, Yuan Yong, Jie Yu, Xinghua Dong, Chenyang Zhang, Ruyi Zhou, Bai Li, Liang Yan, Chunying Chen, Zhanjun Gu, Yuliang Zhao
Integrating radiation therapy with high-depth photothermal therapy in the second near-infrared (NIR) window is highly required for efficient treatment of deep-seated tumor cells. Here, we constructed a multifunctional nano-theranostic with bimetallic chalcogenide nanocrystals (NCs) functionalized with amphiphilic d-α-tocopherol polyethylene glycol 1000 succinate (TPGS-Cu3BiS3). Benefiting from the strong absorbance of both X-ray and NIR light in the second NIR window, TPGS-Cu3BiS3 CNs can not only deposit more radiation dose to trigger enhanced radiation damage in vivo, but also conduct photo-induced hyperthermia for thermal ablation in the second NIR window and effective improvement of tumor oxygenation to overcome the hypoxia-associated radio-resistance of tumors...
June 22, 2017: Nanoscale
https://www.readbyqxmd.com/read/28576058/colloidal-properties-and-in-vitro-evaluation-of-hydroxy-ethyl-cellulose-coated-iron-oxide-particles-for-targeted-drug-delivery
#10
Maide Gökçe Bekaroğlu, Yavuz İşçi, Sevim İşçi
In this study, superparamagnetic iron oxide (Fe3O4) nanoparticles were prepared for the targeted drug delivery applications by controlling the colloidal properties with a cellulosic polymer that is Hydroxy ethyl cellulose (HEC). Fe3O4 particles were treated with HEC in a variable range of polymer concentration. Rheological, electrokinetic, magnetorheological and morphological properties of the dispersions were investigated to have stable and fully covered surfaces of Fe3O4 particles by coating with HEC and obtaining non-toxic biocompatible multifunctional magnetic particles...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28496166/measurement-of-local-temperature-increments-induced-by-cultured-hepg2-cells-with-micro-thermocouples-in-a-thermally-stabilized-system
#11
Fan Yang, Gang Li, Jiamin Yang, Zhenhai Wang, Danhong Han, Fengjie Zheng, Shengyong Xu
To monitor the temperature distribution of a cell and its changes under varied conditions is currently a technical challenge. A variety of non-contact methods used for measuring cellular temperature have been developed, where changes of local temperature at cell-level and sub-cell-level are indirectly calculated through the changes in intensity, band-shape, bandwidth, lifetime or polarization anisotropy of the fluorescence spectra recorded from the nano-sized fluorescent materials pre-injected into the target cell...
May 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28490761/nanoscale-brownian-heating-by-interacting-magnetic-dipolar-particles
#12
Yann Chalopin, Jean-Claude Bacri, Florence Gazeau, Martin Devaud
Clusters of magnetic nanoparticles have received considerable interest in various research fields. Their capacity to generate heat under an alternating magnetic field has recently opened the way to applications such as cancer therapy by hyperthermia. This work is an attempt to investigate the collective effects of interacting dipoles embedded in magnetic nano-particles (MNP) to predict their thermal dissipation with a liquid. We first present a general approach, based on the tracking of the microscopic dipole fluctuations, to access to the dissipation spectra of any spatial distribution of MNPs...
May 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28476039/nano-pulse-stimulation-nps-ablate-tumors-and-inhibit-lung-metastasis-on-both-canine-spontaneous-osteosarcoma-and-murine-transplanted-hepatocellular-carcinoma-with-high-metastatic-potential
#13
Xinhua Chen, Yiling Chen, Jianwen Jiang, Liming Wu, Shengyong Yin, Xudong Miao, Robert J Swanson, Shusen Zheng
BACKGROUND: Nanosecond pulsed electric field (nsPEF), which is also termed as nano-pulse stimulation (NPS), has the potential of stimulating immune responses toward cancer cells. The current study investigates its local and systemic antitumor efficacy in vivo in late stage tumors with lung metastasis. METHOD: The 12 canines with spontaneous osteosarcomas and 12 nude mice transplanted with human hepatocellular carcinoma were divided randomly and were given NPS treatment, surgery or no treatment control...
July 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28452928/near-infrared-fluorescence-imaging-in-nano-therapeutics-and-photo-thermal-evaluation
#14
REVIEW
Mukti Vats, Sumit Kumar Mishra, Mahdieh Shojaei Baghini, Deepak S Chauhan, Rohit Srivastava, Abhijit De
The unresolved and paramount challenge in bio-imaging and targeted therapy is to clearly define and demarcate the physical margins of tumor tissue. The ability to outline the healthy vital tissues to be carefully navigated with transection while an intraoperative surgery procedure is performed sets up a necessary and under-researched goal. To achieve the aforementioned objectives, there is a need to optimize design considerations in order to not only obtain an effective imaging agent but to also achieve attributes like favorable water solubility, biocompatibility, high molecular brightness, and a tissue specific targeting approach...
April 28, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28428881/nano-pulse-stimulation-is-a-physical-modality-that-can-trigger-immunogenic-tumor-cell-death
#15
Richard Nuccitelli, Amanda McDaniel, Snjezana Anand, John Cha, Zachary Mallon, Jon Casey Berridge, Darrin Uecker
BACKGROUND: We have been developing a non-thermal, drug-free tumor therapy called Nano-Pulse Stimulation (NPS) that delivers ultrashort electric pulses to tumor cells which eliminates the tumor and inhibits secondary tumor growth. We hypothesized that the mechanism for inhibiting secondary tumor growth involves stimulating an adaptive immune response via an immunogenic form of apoptosis, commonly known as immunogenic cell death (ICD). ICD is characterized by the emission of danger-associated molecular patterns (DAMPs) that serve to recruit immune cells to the site of the tumor...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28356042/recent-advances-in-oncological-submissions-of-dendrimer
#16
Namrata Soni, Muktika Tekade, Prashant Kesharwani, Pallab Bhattacharya, Rahul Maheshwari, Kamal Dua, Philp M Hansbro, Rakesh Kumar Tekade
BACKGROUND: Disseminated metastatic cancer requires insistent management owing to its reduced responsiveness for chemotherapeutic agents, toxicity to normal cells consequently lower survival rate and hampered quality of life of patients. METHODS: Dendrimer mediated cancer therapy is advantageous over conventional chemotherapy, radiotherapy and surgical resection due to reduced systemic toxicity, and molecular level cell injury to cancerous mass, for an appreciable survival of the subject...
March 29, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28191450/remotely-triggered-nano-theranostics-for-cancer-applications
#17
Alexandra Sneider, Derek VanDyke, Shailee Paliwal, Prakash Rai
Nanotechnology has enabled the development of smart theranostic platforms that can concurrently diagnose disease, start primary treatment, monitor response, and, if required, initiate secondary treatments. Recent in vivo experiments demonstrate the promise of using theranostics in the clinic. In this paper, we review the use of remotely triggered theranostic nanoparticles for cancer applications, focusing heavily on advances in the past five years. Remote triggering mechanisms covered include photodynamic, photothermal, phototriggered chemotherapeutic release, ultrasound, electro-thermal, magneto-thermal, X-ray, and radiofrequency therapies...
2017: Nanotheranostics
https://www.readbyqxmd.com/read/28106955/cypate-mediated-thermosensitive-nanoliposome-for-tumor-imaging-and-photothermal-triggered-drug-release
#18
Zhihao Han, Liwei Lv, Yi Ma, Zhaohui Wang, Yuxi Liu, Min Zhang, Siwen Li, Yueqing Gu
It is an emerging focus to explore controlled release drug delivery systems for simultaneous cancer imaging and therapy. Herein, we synthesized a photothermal sensitive multifunctional nano-liposome drug delivery system, with doxorubicin wrapped in the hydropholic layer as the therapeutical agent and cypate doped in the hydrophobic layer as the diagnostic agent. A series of in vitro and in vivo characterization demonstrated the stability of synthesized liposome, as the DL% was 9 ± 1.5 and the EE% was 82.7 ± 2...
December 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/27461058/ballistic-heat-transport-in-laser-generated-nano-bubbles
#19
Julien Lombard, Thierry Biben, Samy Merabia
Nanobubbles generated by laser heated plasmonic nanoparticles are of interest for biomedical and energy harvesting applications. Of utmost importance is the maximal size of these transient bubbles. Here, we report hydrodynamic phase field simulations of the dynamics of laser induced nanobubbles, with the aim to understand which physical processes govern their maximal size. We show that the nanobubble maximal size and lifetime are to a large extent controlled by the ballistic thermal flux which is present inside the bubble...
August 4, 2016: Nanoscale
https://www.readbyqxmd.com/read/27264551/nanotechnology-in-hyperthermia-cancer-therapy-from-fundamental-principles-to-advanced-applications
#20
REVIEW
Jaber Beik, Ziaeddin Abed, Fatemeh S Ghoreishi, Samira Hosseini-Nami, Saeed Mehrzadi, Ali Shakeri-Zadeh, S Kamran Kamrava
In this work, we present an in-depth review of recent breakthroughs in nanotechnology for hyperthermia cancer therapy. Conventional hyperthermia methods do not thermally discriminate between the target and the surrounding normal tissues, and this non-selective tissue heating can lead to serious side effects. Nanotechnology is expected to have great potential to revolutionize current hyperthermia methods. To find an appropriate place in cancer treatment, all nanotechnology-based hyperthermia methods and their risks/benefits must be thoroughly understood...
August 10, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
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