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Cancer photothermal therapy nano

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https://www.readbyqxmd.com/read/29777957/dual-ph-reduction-responsive-hybrid-polymeric-micelles-for-targeted-chemo-photothermal-combination-therapy
#1
Linhua Zhang, Yu Qin, Zhiming Zhang, Fan Fan, Chenlu Huang, Li Lu, Hai Wang, Xu Jin, Hanxue Zhao, Deling Kong, Chun Wang, Hongfan Sun, Xigang Leng, Dunwan Zhu
The combination of chemotherapy and photothermal therapy in multifunctional nanovesicles has emerged as a promising strategy to improve cancer therapeutic efficacy. Herein, we designed new pH/reduction dual-responsive and folate decorated polymeric micelles (FA Co-PMs) as theranostic nanocarrier to co-encapsulate doxorubicin (DOX) and indocyanine green (ICG) for targeted NIR imaging and chemo-photothermal combination therapy. The Co-PMs exhibited nano-sized structure (∼100 nm) with good monodispersity, high encapsulation efficiency of both ICG and DOX, triggered DOX release in response to acid pH and reduction environment, and excellent temperature conversion with laser irradiation...
May 16, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29774063/dual-target-gene-therapy-to-eml4-alk-nsclc-by-a-gold-nanoshell-based-system
#2
Siwen Li, Yuxi Liu, Yalan Rui, Liping Tang, Samuel Achilefu, Yueqing Gu
Although EML4-ALK transforming fusion gene is represented in only 8% of non-small cell lung cancer (NSCLC) cases, its expression is partly responsive for the failure of current NSCLC treatments. Preventing secondary mutation of the ALK protein through direct gene manipulation could overcome NSCLC drug resistance. Method: In this study, we developed a gold nanoshell (HAuNs) drug carrier for delivery and selective photo-thermal release of genes that target ALK and microRNA-301 in NSCLC. Additionally, the densely-coated nanoshell adsorbed high amounts of the positively-charged anticancer drug doxorubicin (DOX), generating an exciting multidimensional treatment strategy that includes gene-, thermal- and chemo- therapy...
2018: Theranostics
https://www.readbyqxmd.com/read/29718060/platinum-nanoparticles-a-non-toxic-effective-and-thermally-stable-alternative-plasmonic-material-for-cancer-therapy-and-bioengineering
#3
Akbar Samadi, Henrik Klingberg, Liselotte Jauffred, Andreas Kjær, Poul Martin Bendix, Lene B Oddershede
Absorption of near infrared (NIR) light by metallic nanoparticles can cause extreme heating and is of interest for instance in cancer treatment since NIR light has a relatively large penetration depth into biological tissue. Here, we quantify the extraordinary thermoplasmonic properties of platinum nanoparticles and demonstrate their efficiency in photothermal cancer therapy. Although platinum nanoparticles are extensively used for catalysis, they are much overlooked in a biological context. Via direct measurements based on a biological matrix we show that individual irradiated platinum nanoparticles with diameters of 50-70 nm can easily reach surface temperatures up to 900 K...
May 2, 2018: Nanoscale
https://www.readbyqxmd.com/read/29676558/utilizing-intramolecular-photoinduced-electron-transfer-to-enhance-photothermal-tumor-treatment-of-aza-bodipy-based-nir-nanoparticles
#4
Yunjian Xu, Teng Feng, Tianshe Yang, Huanjie Wei, Huiran Yang, Guo Li, Menglong Zhao, Shujuan Liu, Wei Huang, Qiang Zhao
Photothermal therapy (PTT) as a kind of noninvasive tumor treatment has attracted increasing research interest. However, the efficiency of existing PTT agents in the near-infrared (NIR) region is the major problem that has hindered further development of PTT. Herein, we present an effective strategy to construct the efficient photothermal agent by utilizing an intramolecular photoinduced electron transfer (PeT) mechanism, which is able to dramatically improve photothermal conversion efficiency in NIR region...
April 20, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29664607/polyserotonin-nanoparticles-as-multifunctional-materials-for-biomedical-applications
#5
Nako Nakatsuka, Mohammad Mahdi Hasani-Sadrabadi, Kevin M Cheung, Thomas D Young, Ghasem Bahlakeh, Alireza Moshaverinia, Paul S Weiss, Anne M Andrews
Serotonin-based nanoparticles represent a class of previously unexplored multifunctional nanoplatforms with potential biomedical applications. Serotonin, under basic conditions, self-assembles into monodisperse nanoparticles via autoxidation of serotonin monomers. To demonstrate potential applications of polyserotonin nanoparticles for cancer therapeutics, we show that these particles are biocompatible, exhibit photothermal effects when exposed to near-infrared radiation, and load the chemotherapeutic drug doxorubicin releasing it contextually and responsively in specific microenvironments...
April 17, 2018: ACS Nano
https://www.readbyqxmd.com/read/29593960/titania-coated-gold-nano-bipyramids-for-blocking-autophagy-flux-and-sensitizing-cancer-cells-to-proteasome-inhibitor-induced-death
#6
Hong-Ye Wan, Jian-Li Chen, Xingzhong Zhu, Liang Liu, Jianfang Wang, Xiao-Ming Zhu
Targeting protein degradation is recognized as a valid approach to cancer therapy. The ubiquitin-proteasome system (UPS) and the autophagy-lysosome pathway are two major pathways for intracellular protein degradation. Proteasome inhibitors such as bortezomib are clinically approved for treating malignancies, but to date, they are still unsatisfactory for cancer therapy. This study identifies titania-coated gold nano-bipyramid (NBP/TiO2 ) nanostructures as an autophagic flux inhibitor, as the smallest NBP/TiO2 nanostructures induce significant autophagosome accumulation in human glioblastoma U-87 MG cells via blocking the autophagosome-lysosome fusion process and inhibiting lysosomal degradation...
March 2018: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/29577015/multifunctional-pegylated-albumin-ir780-iron-oxide-nanocomplexes-for-cancer-photothermal-therapy-and-mr-imaging
#7
Ssu-Yu Lin, Rih-Yang Huang, Wei-Chen Liao, Chun-Chiao Chuang, Chien-Wen Chang
A multifunctional albumin/superparamagnetic iron oxide nanoparticle (SPIO) nanocomplex system to deliver IR780, a photothermal agent, for cancer theranostic applications was proposed in this study. Single emulsion method was utilized to fabricate the human albumin/IR780/SPIO (HISP) nanocomplexes with a hydrophobic core (SPIO and IR780) and a hydrophilic shell (human serum albumin (HSA) and poly (ethylene glycol) (PEG)). Effects of PEGylation on the size and surface potential of nanocomplexes were analyzed. Nanospheres containing uniformly dispersed SPIO was observed using Transmission Electron Microscopy (TEM) imaging...
2018: Nanotheranostics
https://www.readbyqxmd.com/read/29569431/polydopamine-derivated-hierarchical-nanoplatform-for-efficient-dual-modal-imaging-guided-combination-in-vivo-cancer-therapy
#8
Lijiao Ao, Chunlei Wu, Ke Liu, Wei Wang, Lijing Fang, Liang Huang, Wu Su
Exploring multifunctional nanomaterials from biocompatible constituents, with integrated imaging and targeted combination therapeutic modalities of tumors in vivo, provides great prospects for clinical cancer theranostic applications. Here we report a combination strategy for functionalization of polydopamine (PDA) nanohosts with magnetic response and stimuli-controlled drug release capabilities for in vivo cancer theranostic. The high processibility of PDA as nano-templates and surface coating layers as well as its natural affinity to metals, facilitated the sandwich of a compact iron oxide nanoparticles (IOs) layer into the PDA matrix, realizing enhanced near infrared (NIR) photothermal conversion and strong superparamagnetic responsiveness...
March 23, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29504512/nano-black-phosphorus-for-combined-cancer-phototherapy-recent-advances-and-prospects
#9
Xiaoyan Yang, Gongyuan Liu, Yunhao Shi, Wei Huang, Jinjun Shao, Xiaochen Dong
Black phosphorus (BP), emerging as a new member of two-dimensional nanomaterials, has attracted growing research interests for its amazing photoelectric properties and promising application in electronic devices. Recently, BP has been confirmed to be a desirable candidate for phototherapy against cancer, including photothermal therapy and photodynamic therapy. By regulating the number of layers, the bandgap of BP nanosheets (NSs) can be finely tuned to present near infrared light triggered phototherapeutic behaviors...
June 1, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29493665/lanthanide-doped-upconversion-nanoparticles-complexed-with-nano-oxide-graphene-used-for-upconversion-fluorescence-imaging-and-photothermal-therapy
#10
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 26, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29459928/nano-graphene-oxide-ucnp-ce6-covalently-constructed-nanocomposites-for-nir-mediated-bioimaging-and-ptt-pdt-combinatorial-therapy
#11
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)...
March 12, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29451575/functionalized-cu-3-bis-3-nanoparticles-for-dual-modal-imaging-and-targeted-photothermal-photodynamic-therapy
#12
Yanke Wang, Dongdong Cai, Huixia Wu, Yu Fu, Yang Cao, Yingjian Zhang, Dongmei Wu, Qiwei Tian, Shiping Yang
Multifunctional nano-biomaterials with the integration of diagnostic and therapeutic functions have shown great promise in improving the efficacy of cancer therapy. Herein, a new nanoplatform based on functionalized Cu3 BiS3 nanoparticles (NPs) is fabricated for tumour-targeted combination phototherapy. The as-synthesized hydrophobic Cu3 BiS3 NPs are modified with DSPE-PEG/DSPE-PEG-NH2 , followed by the conjugation of the photosensitizer chlorin e6 (Ce6) and the target ligand folic acid (FA). The introduced Ce6 can further form a chelate complex with Gd3+ ...
March 1, 2018: Nanoscale
https://www.readbyqxmd.com/read/29438610/compact-plasmonic-blackbody-for-cancer-theranosis-in-the-near-infrared-ii-window
#13
Jiajing Zhou, Yuyan Jiang, Shuai Hou, Paul Kumar Upputuri, Di Wu, Jingchao Li, Peng Wang, Xu Zhen, Manojit Pramanik, Kanyi Pu, Hongwei Duan
We have developed a class of blackbody materials, i. e., hyperbranched Au plasmonic blackbodies (AuPBs), of compact sizes (<50 nm). The AuPBs were prepared in a seedless and surfactant-free approach based on the use of mussel-inspired dopamine. Strong intraparticle plasmonic coupling among branches in close proximity leads to intense and uniform broadband absorption across 400-1350 nm. The blackbody absorption imparts the compact AuPB with a superior photothermal efficiency of >80% and closely matched photothermal activity in the first near-infrared (NIR-I) and the second near-infrared (NIR-II) spectral windows, making it a rare broadband theranostic probe for integrated photoacoustic imaging and photothermal therapy (PTT)...
March 27, 2018: ACS Nano
https://www.readbyqxmd.com/read/29424524/second-near-infrared-conjugated-polymer-nanoparticles-for-photoacoustic-imaging-and-photothermal-therapy
#14
Tingting Sun, Jin-Hu Dou, Shi Liu, Xin Wang, Xiaohua Zheng, Yapei Wang, Jian Pei, Zhigang Xie
Photothermal conversion in the second near-infrared (NIR-II) window allows deeper penetration and higher exposure to lasers, but examples of NIR-II photothermal agents are mainly formulated by inorganic compounds. In view of the underlying influence of inorganic materials, a novel NIR-II photothermal nanoagent based on a narrow band gap D-A conjugated polymer (TBDOPV-DT) with 2,2-bithiophene as the donor and thiophene-fused benzodifurandione-based oligo( p-phenylenevinylene) as the acceptor has been developed...
March 7, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29413703/synthesis-and-characterization-of-tamoxifen-citrate-modified-reduced-graphene-oxide-nano-sheets-for-breast-cancer-therapy
#15
Yu-Jin Zhang, Bao-An Li, Zhao-Yuan Li, Ning Xia, Hai-Ying Yu, Ya-Zhi Zhang
Theranostic agents are of immense consideration in the current generation nanomedicine. In this study, we have developed a facile approach for the fabrication of Tamoxifen citrate modified nanosized reduced graphene oxide (nano-rGO) with more stability and low cytotoxicity. The prepared nano-rGO sheets were characterized using HR-TEM and AFM imaging techniques. Further, the cytotoxicity was assessed using MTT assay on female BALB/c nude mice MCF-7 cell lines. In addition, by means of continuous-wave near-infrared laser, cancer cells in vivo were significantly ablated because of the photothermal effect stimulated by tamoxifen modified nano-rGO...
March 2018: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29401694/polymer-based-nanocarriers-for-co-delivery-and-combination-of-diverse-therapies-against-cancers
#16
Guowen Yan, Aihua Li, Aitang Zhang, Yong Sun, Jingquan Liu
Cancer gives rise to an enormous number of deaths worldwide nowadays. Therefore, it is in urgent need to develop new therapies, among which combined therapies including photothermal therapy (PTT) and chemotherapy (CHT) using polymer-based nanocarriers have attracted enormous interest due to the significantly enhanced efficacy and great progress has been made so far. The preparation of such nanocarriers is a comprehensive task involving the cooperation of nanomaterial science and biomedicine science. In this review, we try to introduce and analyze the structure, preparation and synergistic therapeutic effect of various polymer-based nanocarriers composed of anti-tumor drugs, nano-sized photothermal materials and other possible parts...
February 3, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29382198/gold-nanorods-conjugated-porous-silicon-nanoparticles-encapsulated-in-calcium-alginate-nano-hydrogels-using-microemulsion-templates
#17
Hongbo Zhang, Yueqi Zhu, Liangliang Qu, Huayin Wu, Haixin Kong, Zhou Yang, Dong Chen, Ermei Mäkilä, Jarno 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-step chemical reaction for high-capacity loading of hydrophobic and hydrophilic therapeutics with photothermal property...
February 14, 2018: Nano Letters
https://www.readbyqxmd.com/read/29367975/se-sio2-fa-cus-nanocomposites-for-targeted-delivery-of-dox-and-nano-selenium-in-synergistic-combination-of-chemo-photothermal-therapy
#18
Yeying Wang, Xijian Liu, Guoying Deng, Jian Sun, Haikuan Yuan, Qi Li, Qiugeng Wang, Jie Lu
In this study, a versatile tumor-targeted and multi-stimuli-responsive drug delivery vehicle (Se particle@porous silica-folic acid-copper sulfide/doxorubicin (Se@SiO2-FA-CuS/DOX)) was fabricated for combined photothermal therapy with chemotherapy in cancer treatment. Due to excellent targeting ability, the Se@SiO2-FA-CuS/DOX nanocomposites actively accumulated in tumor tissues and thus provided photothermal therapy under NIR irradiation and chemotherapy through the release of DOX and Se. Owing to the synergistic effect of chemotherapy (Se and DOX) and photothermal therapy, the Se@SiO2-FA-CuS/DOX nanocomposites could efficiently inhibit cancer cells both in vitro and in vivo and even completely eliminate tumors...
January 25, 2018: Nanoscale
https://www.readbyqxmd.com/read/29337533/localized-fe-ii-induced-cytotoxic-reactive-oxygen-species-generating-nanosystem-for-enhanced-anticancer-therapy
#19
Yuxue Ding, Jiaxun Wan, Zihao Zhang, Fang Wang, Jia Guo, Changchun Wang
The anticancer therapy on the basis of reactive oxygen species (ROS)-mediated cellular apoptosis has achieved great progress. However, this kind of theraputic strategy still faces some challenges such as light, photosensitizer and oxygen (O2 ) dependence. In this article, a ROS-mediated anticancer therapy independent of light, photosensitizer and oxygen was established based on a Fe2+ -induced ROS-generating nanosystem. First, artemisinin (ART) was loaded in porous magnetic supraparticles (MSP) by a nanodeposition method...
February 7, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29300453/novel-metal-polyphenol-framework-for-mr-imaging-guided-photothermal-therapy
#20
Gaozheng Zhao, Huihui Wu, Ruilu Feng, Dongdong Wang, Pengping Xu, Peng Jiang, Kang Yang, Haibao Wang, Zhen Guo, Qianwang Chen
Phothermal therapy has received increasing attention in recent years as a potentially effective way to treat cancer. In pursuit of a more biocompatible photothermal agent, we utilize biosafe materials including ellagic acid (EA), polyvinylpyrrolidone (PVP), and iron element as building blocks, and we successfully fabricate a homogeneous nanosized Fe-EA framework for the first time by a facile method. As expected, the novel nanoagent exhibits no obvious cytotoxicity and good hemocompatibility in vitro and in vivo...
January 31, 2018: ACS Applied Materials & Interfaces
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