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Cancer thermal therapy nano

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
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
Pooya Davoodi, Madapusi P Srinivasan, Chi-Hwa Wang
UNLABELLED: This study aims to present a new intelligent polymeric nano-system used for combining chemotherapy with non-viral gene therapy against human cancers. An amphiphilic copolymer synthesized through the conjugation of low molecular weight polyethyleneimine (LMw-PEI) and poly(ε-caprolactone) (PCL) via a bio-cleavable disulfide linkage was successfully employed for the simultaneous delivery of drug and gene molecules into target cells. Compared to the conventional PCL copolymerization pathway, this paper represents a straightforward and efficient reaction pathway including the activation of PCL-diol hydroxyl end groups, cystamine attachment and LMw-PEI conjugation which are successfully performed at mild conditions as confirmed by FTIR and (1)H NMR...
July 15, 2016: Acta Biomaterialia
Anilchandra Attaluri, Madhav Seshadri, Sahar Mirpour, Michele Wabler, Thomas Marinho, Muhammad Furqan, Haoming Zhou, Silvia De Paoli, Cordula Gruettner, Wesley Gilson, Theodore DeWeese, Monica Garcia, Robert Ivkov, Eleni Liapi
PURPOSE/OBJECTIVE: The aim of this study was to develop and investigate the properties of a magnetic iron oxide nanoparticle-ethiodised oil formulation for image-guided thermal therapy of liver cancer. MATERIALS AND METHODS: The formulation comprises bionised nano-ferrite (BNF) nanoparticles suspended in ethiodised oil, emulsified with polysorbate 20 (BNF-lip). Nanoparticle size was measured via photon correlation spectroscopy and transmission electron microscopy...
August 2016: International Journal of Hyperthermia
Pei-Ru Wei, Yaswanth Kuthati, Ranjith Kumar Kankala, Chia-Hung Lee
We designed a study for photodynamic therapy (PDT) using chitosan coated Mg-Al layered double hydroxide (LDH) nanoparticles as the delivery system. A Food and Drug Administration (FDA) approved near-infrared (NIR) fluorescent dye, indocyanine green (ICG) with photoactive properties was intercalated into amine modified LDH interlayers by ion-exchange. The efficient positively charged polymer (chitosan (CS)) coating was achieved by the cross linkage using surface amine groups modified on the LDH nanoparticle surface with glutaraldehyde as a spacer...
2015: International Journal of Molecular Sciences
Guohai Yang, Chengzhou Zhu, Dan Du, Junjie Zhu, Yuehe Lin
The development of nanotechnology provides promising opportunities for various important applications. The recent discovery of atomically-thick two-dimensional (2D) nanomaterials can offer manifold perspectives to construct versatile devices with high-performance to satisfy multiple requirements. Many studies directed at graphene have stimulated renewed interest on graphene-like 2D layered nanomaterials (GLNs). GLNs including boron nitride nanosheets, graphitic-carbon nitride nanosheets and transition metal dichalcogenides (e...
September 14, 2015: Nanoscale
Ruichan Lv, Piaoping Yang, Fei He, Shili Gai, Guixin Yang, Yunlu Dai, Zhiyao Hou, Jun Lin
To integrate biological imaging and multimodal therapies into one platform for enhanced anti-cancer efficacy, we have designed a novel core/shell structured nano-theranostic by conjugating photosensitive Au25(SR)18 - (SR refers to thiolate) clusters, pH/temperature-responsive polymer P(NIPAm-MAA), and anti-cancer drug (doxorubicin, DOX) onto the surface of mesoporous silica coated core-shell up-conversion nanoparticles (UCNPs). It is found that the photodynamic therapy (PDT) derived from the generated reactive oxygen species and the photothermal therapy (PTT) arising from the photothermal effect can be simultaneously triggered by a single 980 nm near infrared (NIR) light...
September 2015: Biomaterials
Shazid Md Sharker, Jung Eun Lee, Sung Han Kim, Ji Hoon Jeong, Insik In, Haeshin Lee, Sung Young Park
We have synthesized a pH-dependent, NIR-sensitive, reduced graphene oxide (rGO) hybrid nano-composite via electrostatic interaction with indocyanine green (ICG) which is designed not only to destroy localized cancer cells but also be minimally invasive to surrounding normal cells. The near-infrared (NIR) irradiated hybrid nano-composites showed pH dependent photo-thermal heat generation capability from pH 5.0 to 7.4 due to the pH response relief and quenching effects of poly(2-dimethyl amino ethyl methacrylate) [poly(PDMAEMA)] with ICG on a single rGO sheet...
August 2015: Biomaterials
N Sanoj Rejinold, R Jayakumar, Yeu-Chun Kim
Radiofrequency (RF)-assisted cancer therapy is well-known in the medical field as it is non-hazardous and can penetrate tissues, enabling a deeply rooted cancer treatment. However, the current treatment regimen is non-specific and invasive, making it difficult for patients to undergo the RF ablation procedure. Recently, there has been tremendous attention given on replacing RF probes (through which the RF current passes into the tumors) with metallic nanoparticles (NPs) such as gold and iron oxide. These metallic NPs can be combined with stimuli responsive polymers to have a simultaneous drug delivery to tumors and better thermal ablation...
April 28, 2015: Journal of Controlled Release: Official Journal of the Controlled Release Society
L Saenz del Burgo, J L Pedraz, G Orive
Over the past decade, together with the improvement of traditional cancer treatments, conveniently designed (with respect to their size, shape, main material, and coating) and specifically targeted nanovehicles have been developed. Nano-sized carriers can be functionalized to recognize key structures expressed in cancer cells and/or their surrounding tissues. Recently, some more complex systems have been developed that exploit the human body's own communication systems to enhance their efficacy. Some of the newest nanoparticles have the capacity to not only serve as drug delivery systems for a myriad of molecules, but also operate as direct cancer treatment agents themselves, such as in thermal therapies...
October 2014: Drug Discovery Today
Nai-Tzu Chen, Kuo-Chun Tang, Ming-Fang Chung, Shih-Hsun Cheng, Ching-Mao Huang, Chia-Hui Chu, Pi-Tai Chou, Jeffrey S Souris, Chin-Tu Chen, Chung-Yuan Mou, Leu-Wei Lo
The unique optical properties of gold nanorods (GNRs) have recently drawn considerable interest from those working in in vivo biomolecular sensing and bioimaging. Especially appealing in these applications is the plasmon-enhanced photoluminescence of GNRs induced by two-photon excitation at infrared wavelengths, owing to the significant penetration depth of infrared light in tissue. Unfortunately, many studies have also shown that often the intensity of pulsed coherent irradiation of GNRs needed results in irreversible deformation of GNRs, greatly reducing their two-photon luminescence (TPL) emission intensity...
2014: Theranostics
Timur Saliev, Katsuro Tachibana, Denis Bulanin, Sergey Mikhalovsky, Ray D L Whitby
Bio-effects mediated by non-ionizing electromagnetic fields (EMF) have become a hot topic of research in the last decades. This interest has been triggered by a growing public concern about the rapid expansion of telecommunication devices and possible consequences of their use on human health. Despite a feasibility study of potential negative impacts, the therapeutic advantages of EMF could be effectively harnessed for the treatment of cancer and other diseases. This review aims to examine recent findings relating to the mechanisms of action underlying the bio-effects induced by non-ionizing EMF...
2014: Frontiers in Bioscience (Elite Edition)
Shu-Guang Zheng, Hui-Xiong Xu, Hang-Rong Chen
Microbubbles have been used for many years now in clinical practice as contrast agents in ultrasound imaging. Recently, their therapeutic applications have also attracted more attention. However, the short circulation time (minutes) and relatively large size (two to ten micrometers) of currently used commercial microbubbles do not allow effective extravasation into tumor tissue, preventing efficient tumor targeting. Fortunately, more multifunctional and theranostic nanoparticles with some special advantages over the traditional microbubbles have been widely investigated and explored for biomedical applications...
December 28, 2013: World Journal of Radiology
M Sheikh Mohamed, Srivani Veeranarayanan, Aby Cheruvathoor Poulose, Yutaka Nagaoka, Hiroaki Minegishi, Yasuhiko Yoshida, Toru Maekawa, D Sakthi Kumar
BACKGROUND: Gliomas have been termed recurrent cancers due to their highly aggressive nature. Their tendency to infiltrate and metastasize has posed significant roadblocks to in attaining fool proof treatment solutions. An initiative to curb such a scenario was successfully demonstrated in vitro, utilizing a multi-conceptual gold nanoparticle based photo-thermal and drug combination therapy. METHODS: Gold nanoparticles (Au NPs) were synthesized with a highly environmentally benign process...
June 2014: Biochimica et Biophysica Acta
Mostafa Heidari Majd, Jaleh Barar, Davoud Asgari, Hadi Valizadeh, Mohammad Reza Rashidi, Vala Kafil, Javid Shahbazi, Yadollah Omidi
PURPOSE: To achieve simultaneous imaging and therapy potentials, targeted fluoromagnetic nanoparticles were synthesized and examined in human breast cancer MCF-7 cells. METHODS: Fe3O4 nanoparticles (NPs) were synthesized through thermal decomposition of Fe(acac)3. Then, magnetic nanoparticles (MNPs) modified by dopamine-poly ethylene glycol (PEG)-NH2; finally, half equivalent fluorescein isothiocyanate (FITC) and half equivalent folic acid were conjugated to one equivalent of it...
2013: Advanced Pharmaceutical Bulletin
Christopher G England, Thomas Priest, Guandong Zhang, Xinghua Sun, Dhruvinkumar N Patel, Lacey R McNally, Victor van Berkel, André M Gobin, Hermann B Frieboes
Nano-scale particles sized 10-400 nm administered systemically preferentially extravasate from tumor vasculature due to the enhanced permeability and retention effect. Therapeutic success remains elusive, however, because of inhomogeneous particle distribution within tumor tissue. Insufficient tumor vascularization limits particle transport and also results in avascular hypoxic regions with non-proliferating cells, which can regenerate tissue after nanoparticle-delivered cytotoxicity or thermal ablation. Nanoparticle surface modifications provide for increasing tumor targeting and uptake while decreasing immunogenicity and toxicity...
2013: International Journal of Nanomedicine
M Abdolahad, M Janmaleki, S Mohajerzadeh, O Akhavan, S Abbasi
Green tea-reduced graphene oxide (GT-rGO) sheets have been exploited for high efficiency near infrared (NIR) photothermal therapy of HT29 and SW48 colon cancer cells. The biocompatibility of GT-rGO sheets was investigated by means of MTT assays. The polyphenol constituents of GT-rGO act as effective targeting ligands for the attachment of rGO to the surface of cancer cells, as confirmed by the cell granularity test in flow cytometry assays and also by scanning electron microscopy. The photo-thermal destruction of higher metastatic cancer cells (SW48) is found to be more than 20% higher than that of the lower metastatic one (HT29)...
April 1, 2013: Materials Science & Engineering. C, Materials for Biological Applications
Seyed Yazdan Madani, Farzad Shabani, Miriam V Dwek, Alexander M Seifalian
Cancer is one of the leading causes of death worldwide and early detection provides the best possible prognosis for cancer patients. Nanotechnology is the branch of engineering that deals with the manipulation of individual atoms and molecules. This area of science has the potential to help identify cancerous cells and to destroy them by various methods such as drug delivery or thermal treatment of cancer. Carbon nanotubes (CNT) and quantum dots (QDs) are the two nanoparticles, which have received considerable interest in view of their application for diagnosis and treatment of cancer...
2013: International Journal of Nanomedicine
Maoquan Chu, Jinliang Peng, Jiajia Zhao, Shanlu Liang, Yuxiang Shao, Qiang Wu
Among carbon-based nanomaterials, activated carbon (AC) may be an ideal candidate as a carrier for tumor therapeutic agents. Here we found a new property of nanoscale activated carbon (NAC) with narrow size distribution, namely the rapid conversion of light to thermal energy both in vitro and in vivo. An aqueous suspension of 200 μL of NAC (1 mg/mL) exhibited a rapid temperature increase of more than 35 °C after irradiation for 20 min with a 655-nm laser; this was within the temperature range for effective tumor treatment...
February 2013: Biomaterials
Jin-Gang Yu, Fei-Peng Jiao, Xiao-Qing Chen, Xin-Yu Jiang, Zhi-Guang Peng, Dong-Ming Zeng, Du-Shu Huang
Anticancer drugs such as biological therapeutic proteins and peptides are used for treatment of a variety of tumors. However, their wider use has been hindered by their poor bioavailability and the uncontrollable sites of action in vivo. Cancer nano-therapeutics is rapidly progressing, which is being applied for solving some limitations of conventional drug delivery systems. To improve the bio-distribution of anticancer drugs, carbon nanotubes have been used as one of the most effective drug carriers. This review discusses the carbon nanotubes-mediated methods for the delivery of anticancer drugs, with emphasis on the radiation-induced drug-targeted releasing and selective photo-thermal cancer therapy...
July 2012: Journal of Cancer Research and Therapeutics
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