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Enhance photothermal therapy

Weijun Xu, Junmin Qian, Guanghui Hou, Yaping Wang, Jinlei Wang, Tiantian Sun, Lijie Ji, Aili Suo, Yu Yao
Integration of multimodal therapies into one nanoplatform holds great promise to overcome the drawbacks of conventional single-modal therapy and pursues enhanced anticancer efficacy. Herein, we developed a PEGylated gold nanorods (GNRs)-based nanoplatform (GNRs-MPH-ALA/DOX -PEG) with pH-responsive drug release property for triple-combined chemotherapy (CT), photodynamic therapy (PDT) and photothermal therapy (PTT) of breast cancer. GNRs were first decorated with mercaptopropionylhydrazide (MPH) and thiol-terminated monomethoxyl poly(ethylene glycol) (mPEG-SH) via Au-thiol linkage, and subsequently conjugated with chemotherapeutant doxorubicin (DOX) and pro-photosensitizer 5-aminolevulinic acid (ALA) through acid-liable hydrazone bonds between drugs and MPH molecules...
October 15, 2018: Acta Biomaterialia
Li-Juan Yan, Xin-Hong Guo, Wei-Ping Wang, Yu-Rong Hu, Shao-Feng Duan, Ying Liu, Zhi Sun, Sheng-Nan Huang, Hui-Li Li
MicroRNA (miRNA) therapy, which was widely considered to treat a series of cancer, has been confronted with numerous obstacles to being delivered into target cells because of its easy biodegradation and instability. In this research, we successfully constructed 11-mercaptoundecanoic acid modified gold nanocages (AuNCs)/polyethyleneimine (PEI)/miRNA/hyaluronic acid (HA) complexes (abbreviated as AuNCs/PEI/miRNA/HA) using a layer-by-layer method for target-specific intracellular delivery of miRNA by HA receptor mediated endocytosis...
October 16, 2018: Current Cancer Drug Targets
Yanping Liu, Xuwu Zhang, Liyao Luo, Lei Li, Rui Yan Zhu, Anshuo Li, Yuchu He, Weiwei Cao, Kang Niu, Huan Liu, Jingyue Yang, Dawei Gao
Development of combined chemo-photothermal nanoplatform is of great interest for enhancing antitumor efficacy. Herein, a multifunctional drug delivery system was synthesized based on gold-nanobranched coated betulinic acid liposomes (GNBS-BA-Lips) for chemo-photothermal synergistic therapy. In this system, GNBS-BA-Lips exhibited broad near-infrared (NIR) absorption, preferable photothermal response and good photostability under NIR irradiation. Importantly, the gold-nanobranched nanostructure possessed high photothermal conversion efficiency (η=55...
October 13, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
Junfeng Fang, Yanqing Liu, Yiwen Chen, Dimei Ouyang, Guangji Yang, Tao Yu
Background: Carbon-based drug delivery systems have attracted great interest because of their excellent photothermal conversion capability and high specific surface area for drug loading. Herein, we report a multifunctional nanoplatform based on hyaluronic acid (HA)-modified and graphene quantum dot (GQD)-gated hollow mesoporous carbon nanoparticle (HMCN) for anticancer drug encapsulation and targeted chemo-photothermal therapy of CD44 receptor-overexpressed cancer cells. Methods: In this design, HMCN was not only used as a nanocarrier with high drug loading content to achieve chemotherapy, but also as a near-infrared absorbing agent to realize photothermal therapy...
2018: International Journal of Nanomedicine
Jihwan Son, Gawon Yi, Jihye Yoo, Changhee Park, Heebeom Koo, Hak Soo Choi
Nanoparticles (NPs) play a key role in nanomedicine in multimodal imaging, drug delivery and targeted therapy of human diseases. Consequently, due to the attractive properties of NPs including high stability, high payload, multifunctionality, design flexibility, and efficient delivery to target tissues, nanomedicine employs various types of NPs to enhance targeting and treatment efficacy. In this review, we primarily focus on light-responsive materials, such as fluorophores, photosensitizers, semiconducting polymers, carbon structures, gold particles, quantum dots, and upconversion crystals, for their biomedical applications...
October 12, 2018: Advanced Drug Delivery Reviews
Luping Sha, Qinfu Zhao, Da Wang, Xian Li, Xiudan Wang, Xinyao Guan, Siling Wang
"Gate" engineered mesoporous silica nanoparticles (MSN) have been extensively applied in cancer theranostics. Due to the complexity of tumor development and progression, with chemotherapy alone, it has often been difficult to achieve a good therapeutic effect. Currently, it has been shown that the combination with photothermal therapy overcomes the shortcoming of chemotherapy. In most studies, the photothermal effect has proven to accelerate drug release from nanocarriers and ablate malignant cells directly, but the influence on the intracellular fate of nanocarriers remains unknown...
September 27, 2018: Journal of Colloid and Interface Science
Penghe Zhao, Zhaokui Jin, Qian Chen, Tian Yang, Danyang Chen, Jin Meng, Xifeng Lu, Zhen Gu, Qianjun He
By delivering the concept of clean hydrogen energy and green catalysis to the biomedical field, engineering of hydrogen-generating nanomaterials for treatment of major diseases holds great promise. Leveraging virtue of versatile abilities of Pd hydride nanomaterials in high/stable hydrogen storage, self-catalytic hydrogenation, near-infrared (NIR) light absorption and photothermal conversion, here we utilize the cubic PdH0.2 nanocrystals for tumour-targeted and photoacoustic imaging (PAI)-guided hydrogenothermal therapy of cancer...
October 12, 2018: Nature Communications
Hainan Yang, Zaijia Liu, Xufeng Li, Zhenfeng Zhang, Deji Chen, Hui Lian
Herein, a tumor-targeted multifunctional theranostic agent was synthetized using a facile method, combining four clinically approved materials: artesunate (Arte), human serum albumin (HSA), folic acid (FA), and indocyanine green (ICG). The obtained nanocomposites (FA-IHA NPs) showed an excellent photo- and physiological stability. The ICG in the FA-IHA NPs was used not only for near infrared (NIR) fluorescence imaging, but also for photothermal and photodynamic (PTT-PDT) therapy under a single NIR irradiation...
October 11, 2018: Nanoscale Research Letters
Ting-Ting Zhang, Cong-Hui Xu, Wei Zhao, Yu Gu, Xiang-Ling Li, Jing-Juan Xu, Hong-Yuan Chen
Development of tumor microenvironment responsive and modulating theranostic nano-systems is of great importance for specific and efficient cancer therapy. Herein, we report a redox-sensitive nanoagent combining manganese dioxide (MnO2 ) and gold nanoshell coated silicon nanoparticles for synergistic chemo-photothermal therapy of hypoxia solid tumors. In highly reducing tumor tissues, the outer MnO2 nanosheet with the loaded drug would be dissociated by intracellular glutathione (GSH), resulting in on-demand drug release, as well as generating Mn2+ ions which provided high contrast magnetic resonance imaging (MRI), and fluorescence imaging (FI) in vitro and in vivo ...
September 7, 2018: Chemical Science
Qin Gao, Xiao Zhang, Wenyan Yin, Dongqing Ma, Changjian Xie, Lirong Zheng, Xinghua Dong, Linqiang Mei, Jie Yu, Chaozhan Wang, Zhanjun Gu, Yuliang Zhao
The rising dangers of bacterial infections have created an urgent need for the development of a new generation of antibacterial nanoagents and therapeutics. A new near-infrared 808 nm laser-mediated nitric oxide (NO)-releasing nanovehicle (MoS2 -BNN6) is reported through the simple assembly of α-cyclodextrin-modified MoS2 nanosheets with a heat-sensitive NO donor N,N'-di-sec-butyl-N,N'-dinitroso-1,4-phenylenediamine (BNN6) for the rapid and effective treatment of three typical Gram-negative and Gram-positive bacteria (ampicillin-resistant Escherichia coli, heat-resistant Escherichia faecalis, and pathogen Staphylococcus aureus)...
October 11, 2018: Small
Chunyan Hu, Fan Fan, Yu Qin, Chenlu Huang, Zhiming Zhang, Qing Guo, Li Zhang, Xiangbin Pang, Wenbin Ou-Yang, Kongyin Zhao, Dunwan Zhu, Linhua Zhang
We have developed redox-sensitive folic acid-conjugated PCL-PEG-PCL (PCEP) nanoparticles for co-delivering chemotherapeutic agent doxorubicin (DOX) and imaging and hyperthermia agent indocyanine green (ICG) with simultaneous imaging and combined therapy for breast cancer. DOX and ICG were entrapped into PCEP nanoparticles through the thin-film hydration and ultrasonic dispersion. Then nanoparticles were surface decorated with folic acid ligands against FR overexpressing breast cancers. Drug-loading nanoparticles exhibited an enhanced reduction-sensitivity in the presence of 10 mM glutathione...
December 1, 2018: Journal of Biomedical Nanotechnology
Ji Hyun Choi, Hojun Seo, Ju Hyang Park, Jin Ho Son, Da In Kim, Jongbok Kim, Geon Dae Moon, Dong Choon Hyun
This work introduces a new fibrous system for synergistic cancer therapy. The system consists of poly(d,l-lactic-co-glycolic acid) (PLGA) fibers with a core encapsulating an anticancer drug and a shell entrapping gold nanorods (AuNRs) as a photothermal agent. On exposure to NIR light, the photothermal agent generates heat to raise the local temperature of the fibers. If the temperature is above a glass transition (Tg ) of the polymer, the polymer chains will be mobile, increasing free volume in size within the shell...
October 2, 2018: Colloids and Surfaces. B, Biointerfaces
Quan Zou, Jiani Huang, Xuejun Zhang
Theranostic materials are of great significance to a personalized precise medicine. However, conventional theranostic agents are mainly fabricated by combining presynthesized independent imaging probes and therapeutic agents, suffering from multiple synthesis procedures, poor morphological control, and time/reagent-consuming process. Herein, iodinated polypyrrole (I-PPy) nanoparticles are fabricated via a one-step synthesis strategy combining chemical oxidation and iodination for computed tomography (CT) imaging-guided photothermal therapy...
October 9, 2018: Small
Zhenglin Li, Ying Hu, Zhaohua Miao, Han Xu, Chunxiao Li, Yan Zhao, Zhuo Li, Manli Chang, Zhuo Ma, Ye Sun, Flemming Besenbacher, Peng Huang, Miao Yu
Development of stimuli-responsive theranostics is of great importance for precise cancer diagnosis and treatment. Herein, bovine serum albumin (BSA) modified bismuth nanoraspberries (Bi-BSA NRs) are developed as cancer theranostic agents for multimodal imaging and chemo-photothermal combination therapy. The Bi-BSA NRs are synthesized in aqueous phase via a facile reduction method using Bi2 O3 nanospheres as the sacrificial template. The morphology, biocompatibility, photothermal effect, drug loading/releasing abilities, chemotherapy effect, synergistic chemo-photothermal therapy efficacy, and multimodal imaging capacities of Bi-BSA NRs have been investigated...
October 5, 2018: Nano Letters
Rajendra Prasad, Deepak S Chauhan, Amit S Yadav, Janhavi Devrukhkar, Barkha Singh, Mahadeo Gorain, Mayur Temgire, Jayesh Bellare, Gopal C Kundu, Rohit Srivastava
Specific targeting and phototriggered therapy in mouse model have recently emerged as the starting point of cancer theragnosis. Herein, we report a bioresponsive and degradable nanohybrid, a liposomal nanohybrid decorated with red emissive carbon dots, for localized tumor imaging and light-mediated tumor growth inhibition. Unsaturated carbon dots (C-dots) anchored to liposomes convert near-infrared (NIR) light into heat and also produce reactive oxygen species (ROS), demonstrating the capability of phototriggered cancer cell death and tumor regression...
October 18, 2018: Nanoscale
Shu Hu, Bi-Ju Liu, Jia-Min Feng, Cheng Zong, Kai-Qiang Lin, Xiang Wang, De-Yin Wu, Bin Ren
Precise measurement of the temperature right at the surface of thermoplasmonic nanoparticles is a grand challenge but extremely important for the photochemical reaction and photothermal therapy. We present here a method capable of measuring the surface temperature of plasmonic nanostructures with surface-enhanced Raman spectroscopy (SERS), which is not achievable by existing methods. We observe a sensitive shift of stretching vibration of phenyl isocyanide (PIC) molecule with temperature (0.232 cm-1/ºC) as a result of the temperature-dependent molecular orientation change...
October 3, 2018: Journal of the American Chemical Society
Wenquan Ou, Liyuan Jiang, Raj Kumar Thapa, Zar Chi Soe, Kishwor Poudel, Jae-Hoon Chang, Sae Kwang Ku, Han-Gon Choi, Chul Soon Yong, Jong Oh Kim
The efficacy of combined near-infrared (NIR) and immune therapies for inhibiting tumor growth and recurrence has gained increasing research attention. Regulatory T cells in the tumor microenvironment constitute a major obstacle in achieving robust CD8+ T cell antitumor immunotherapy. In the present study, we designed a photoimmunotherapy-based strategy involving a combination of photothermal and photodynamic therapies, followed by Treg cell suppression, for eliciting an immune response with IR-780- and imatinib-loaded layer-by-layer hybrid nanoparticles...
2018: Theranostics
Zhiming Liu, Haolin Chen, Yali Jia, Wen Zhang, Henan Zhao, Wendong Fan, Wolun Zhang, Huiqing Zhong, Yirong Ni, Zhouyi Guo
Flake-shaped nanohybrids based on black phosphorus (BP) have been developed as multifunctional theranostic nanoplatforms for drug delivery, phototherapy and bioimaging. In this work, we report a facile strategy for fabrication of black phosphorus-Au nanoparticle hybrids (BP-AuNPs), which reveal an extraordinary near-infrared (NIR) photothermal transduction efficiency and drug delivery capacity. The applications of the nanocomposites as therapeutic agents for high-performance chemo-photothermal tumor therapy are accomplished in vitro and in vivo...
October 21, 2018: Nanoscale
Yudi Ruan, Xiaodai Jia, Chao Wang, Wenyao Zhen, Xiue Jiang
Iron-manganese layered double hydroxide nanosheets were developed as an effective photothermal nanocarrier for loading a photosensitizer. The catalase-like activity enables the nanosheets to decompose H2 O2 into O2 , overcoming tumor hypoxia and enhancing O2 -dependent photodynamic therapy (PDT). The combination of PDT and photothermal therapy (PTT) can almost completely eliminate tumor tissues.
October 25, 2018: Chemical Communications: Chem Comm
Xueyi Zhang, Jianrong Wu, Gareth R Williams, Shiwei Niu, Qianqian Qian, Li-Min Zhu
Molybdenum disulfide (MoS2 ) has been extensively explored for biomedical applications due to its excellent photothermal conversion ability. In this paper, we report a nanoplatform based on folic acid (FA) targeted dual-stimuli responsive MoS2 nanosheets and explore this for the treatment of FA-receptor positive human breast cancer. The nanocomposites generated had a uniform diameter (ca. 133 nm), and could be loaded with the anti-cancer drug doxorubicin (DOX) to a high capacity (151.4 mg/g). The release of DOX was greatly accelerated at pH 5...
September 21, 2018: Colloids and Surfaces. B, Biointerfaces
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