Read by QxMD icon Read


Bo Huang, Lei Tan, Xiangmei Liu, Jun Li, Shuilin Wu
Bone-implant materials are important for bone repairing and orthopedics surgery, which include bone plates and bone nails. These materials need to be designed not only considering its biostability and biocompatibility, but also their by-products induced infection after therapy or long-time treatment in vivo . Thus, the development of novel implant materials is quite urgent. Red phosphorus has great biocompatibility and exhibits efficient photothermal ability. Herein, a red phosphorus/IR780/arginine-glycine-asparticacid-cysteine (RGDC) coating on titanium bone-implant was prepared...
March 2019: Bioactive Materials
Xiaoyu Xu, Yu Chong, Xiaoyun Liu, Han Fu, Chenggong Yu, Jie Huang, Zhijun Zhang
In this work, we developed a novel multifunctional nanoplatform based on hyaluronic acid modified Au nanocages (AuNCs-HA). The rational design of AuNCs-HA renders the nanoplatform three functionalities: (1) AuNCs-HA with excellent LSPR peak in the NIR region act as contrast agent for enhanced photoacoustic (PA) imaging and photothermal therapy (PTT); (2) the nanoplatform with high-energy rays (X-ray) absorption and auger electrons generation acts as a radiosensitizer for radiotherapy; (3) good photocatalytic property and large surface area make AuNCs-HA a photosensitive agent for photodynamic therapy (PDT)...
November 27, 2018: Acta Biomaterialia
Xu Hu, Hailong Tian, Wei Jiang, Aixin Song, Zhonghao Li, Yuxia Luan
Phototherapy as a promising cancer diagnostic and therapeutic strategy has aroused extensive attention. However, single-wavelength near-infrared (NIR) light-triggered combinational treatment of photothermal therapy (PTT) and photodynamic therapy (PDT) is still a great challenge. Herein, a multifunctional micelle activated by a single-wavelength laser for simultaneous PTT and PDT as well as fluorescence imaging is developed. Briefly, new indocyanine green (IR820) is conjugated to d-α-tocopheryl polyethylene glycol 1000 succinate (TPGS) via the linker 6-aminocaproic acid, and then, chlorin e6 (Ce6) is encapsulated into the micelles formed by TPGS-IR820 conjugates to fabricate TPGS-IR820/Ce6 micelles...
November 26, 2018: Small
Weijun Xu, Junmin Qian, Guanghui Hou, Yaping Wang, Jinlei Wang, Tiantian Sun, Lijie Ji, Aili Suo, Yu Yao
Multi-stimuli-responsive theranostic nanoplatform integrating functions of both imaging and multimodal therapeutics holds great promise for improving diagnosis and therapeutic efficacy. In this study, we reported a pH, glutathione (GSH) and hyaluronidase (HAase) triple-responsive nanoplatform for HER2 and CD44 dual-targeted and fluorescence imaging-guided PDT/PTT dual-therapy against HER2-overexpressed breast cancer. The nanoplatform was fabricated by functionalizing gold nanorods (GNRs) with hyaluronic acid (HA) bearing pendant hydrazide and thiol groups via Au-S bonds, and subsequently chemically conjugating 5-aminolevulinic acid (ALA), Cy7...
November 19, 2018: Acta Biomaterialia
Hadi Ranji-Burachaloo, Paul A Gurr, Dave E Dunstan, Greg G Qiao
Currently, cancer is the second largest cause of death worldwide and has reached critical levels. In spite of all the efforts, common treatments including chemotherapy, photodynamic therapy, and photothermal therapy suffer from various problems which limit their efficiency and performance. For this reason, different strategies are being explored which improve the efficiency of these traditional therapeutic methods or treat the tumor cells directly. One such strategy utilizing the Fenton reaction has been investigated by many groups for the possible treatment of cancer cells...
November 28, 2018: ACS Nano
Xu Zhen, Penghui Cheng, Kanyi Pu
Phototherapy including photothermal therapy (PTT) and photodynamic therapy (PDT) employs phototherapeutic agents to generate heat or cytotoxic reactive oxygen species (ROS), and has therefore garnered particular interest for cancer therapy. However, the main challenges faced by conventional phototherapeutic agents include easy recognition by the immune system, rapid clearance from blood circulation, and low accumulation in target sites. Cell-membrane coating has emerged as a potential way to overcome these limitations, owing to the abundant proteins on the surface of cell membranes that can be inherited to the cell membrane-camouflaged nanoparticles...
November 20, 2018: Small
Peng Yang, Ye Tian, Yongzhi Men, Ranran Guo, Haibao Peng, Qin Jiang, Wuli Yang
Combination of photothermal therapy (PTT) and photodynamic therapy (PDT) has become a promising cancer treatment in recent years. However, their applications are limited by complex synthetic protocols and low efficacy. Hence, optimizing experimental approach and improving the efficiency of phototherapy is the current research focus. In this work, various pyrolysis temperatures and sizes of zeolitic imidazolate framework-8 (ZIF-8) derived carbon nanoparticles (ZCNs) are obtained by a simple direct pyrolysis of the ZIF-8 nanoparticles...
November 28, 2018: ACS Applied Materials & Interfaces
Xian-Wu Hua, Yan-Wen Bao, Jia Zeng, Fu-Gen Wu
Integration of multiple diagnostic/therapeutic modalities into a single system with ultrasmall size, excellent photothermal/photodynamic properties, high cellular uptake efficiency, nuclear delivery capacity, rapid renal clearance, and good biosafety is highly desirable for cancer theranostics, but still remains challenging. Here, a novel type of multifunctional nanodots (denoted as BCCGH) was synthesized by mixing bovine serum albumin, carbon dots, and metal ions (Cu2+ and Gd3+), followed by the conjugation with a photosensitizer (HPPH)...
November 7, 2018: ACS Applied Materials & Interfaces
Xuechao Cai, Bei Liu, Maolin Pang, Jun Lin
Recently, fabrication of nanoscale MOFs (NMOFs) has attracted great attention for biomedical applications. NMOFs not only maintain the structural diversity and physicochemical properties of bulk MOFs, but also possess suitable dimensions, making them potential nanocarriers for imaging agents and drug molecules. In this work, highly monodispersed Fe-soc-MOF nanoparticles (about 100 nm) were fabricated through the liquid-solid-solution (LSS) method. Indocyanine green (ICG) was conjugated to the surface-modified Fe-soc-MOF to construct a multifunctional theranostic platform...
November 22, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
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
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
Xuwu Zhang, Liyao Luo, Lei Li, Yuchu He, Weiwei Cao, Huan Liu, Kang Niu, Dawei Gao
A multifunctional antitumor drug delivery system was synthesized based on graphene oxide (GO) for near-infrared (NIR) light controlling chemotherapeutic/photothermal (PTT) /photodynamic (PDT) trimodal synergistic therapy. The system named ICG-Wed-GO was formed by co-loading wedelolactone (Wed) and indocyanine green (ICG) on the surface of GO through π-π stacking interaction. Under NIR laser irradiation, ICG-Wed-GO could effectively absorb and transform optical energy to heat, generate reactive oxygen species (ROS) to ablating and damage tumor cells...
October 6, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
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
Peng Xue, Mengmeng Hou, Lihong Sun, Qian Li, Lei Zhang, Zhigang Xu, Yuejun Kang
Indocyanine green (ICG) is an efficient photosensitizer that can facilitate producing cytotoxic reactive oxygen species (ROS). At the same time, ICG also has characteristic absorption of near-infrared light and thus can induce a strong photothermal effect. Both of these important features of ICG may be applied for noninvasive light-induced tumor ablation. On the other hand, ICG is lack of stability in blood circulation and susceptible to aggregation or premature clearance from the body. These issues need to be effectively addressed before antitumor application of ICG becomes possible...
September 27, 2018: Acta Biomaterialia
Yanyan Liu, Yaqin Jiang, Meng Zhang, Zhongmin Tang, Mingyuan He, Wenbo Bu
The common existence of hypoxia in solid tumors has been heavily researched because it renders tumors more resistant to most standard therapeutic methods, such as radiotherapy (RT), chemotherapy, and photodynamic therapy (PDT), and is associated with a more malignant phenotype and poor survival in patients with tumors. The development of hypoxia modulation methods for advanced therapeutic activity is therefore of great interest but remains a considerable challenge. Since the significant development of nanotechnology and nanomedicine, functionalized nanomaterials can be exploited as adjuvant "drugs" for these oxygen-dependent standard therapies or as hypoxia initiators for advanced new therapies to solid tumors...
October 16, 2018: Accounts of Chemical Research
Huaqin Zuo, Junxian Tao, Hua Shi, Jian He, Zhengyang Zhou, Chao Zhang
W18 O49 -mediated photodynamic therapy (PDT) and photothermal therapy (PTT) are limited by the easily oxidized property and tumor hypoxia. Here, we report the development of platelet membranes as nanocarriers to co-load W18 O49 nanoparticles (NPs) and metformin (PM-W18 O49 -Met NPs). Platelet membranes can protect W18 O49 from oxidation and immune evasion, and increase the accumulation of W18 O49 in tumor sites via the passive EPR effect and active adhesion between platelets and cancer cells. The introduction of metformin (Met), a typical anti-diabetic drug, can alleviate the tumor hypoxia through reducing oxygen consumption...
September 15, 2018: Acta Biomaterialia
Alberto Marcos Heredia-Rizo, Kristian Kjær Petersen, Pascal Madeleine, Lars Arendt-Nielsen
OBJECTIVES: The effects of eccentric exercises on clinical outcomes and central pain mechanisms are unclear in neck/shoulder pain (NSP). The aims were to (1) evaluate the clinical impact of unilateral eccentric training in female computer users with chronic NSP, (2) compare pressure pain sensitivity, temporal summation of pain (TSP), and conditioned pain modulation (CPM) in female office workers with and without NSP, and (3) assess sensitization and central pain responses after training...
September 15, 2018: Clinical Journal of Pain
Lihong Sun, Qian Li, Mengmeng Hou, Ya Gao, Ruihao Yang, Lei Zhang, Zhigang Xu, Yuejun Kang, Peng Xue
Multiple therapeutic modalities, such as photodynamic (PDT) and photothermal (PTT) therapies, have been jointly applied to produce a synergistic effect for tumor eradication based on the hyperthermia and generation of reactive oxygen species (ROS) mediated by photoactive agents. Effective delivery of highly efficient photosensitizers and photothermal agents is the key for combination of PDT/PTT. Herein, we propose a strategy to functionalize Prussian blue (PB) nanoparticles (NPs) with Chlorin e6 (Ce6)-imbedded erythrocyte membrane vesicles...
October 24, 2018: Biomaterials Science
Wei Zhao, Aihua Li, Aitang Zhang, Yiwei Zheng, Jingquan Liu
In this review, we focus on recent advances in the synthesis of polymer-functionalized transition-metal-based nanomaterials and follow this up by discussing their applications in bioimaging diagnosis and cancer therapy. Transition-metal-based nanomaterials show great potential in cancer therapy owing to their intensive near-IR absorption, excellent photothermal conversion efficiency, strong X-ray attenuation, and magnetic properties. Functional polymers are usually introduced by a one-step or multistep method to further endow these nanomaterials with great biocompatibility and physiological stability...
August 28, 2018: ChemMedChem
Rachel S Riley, Rachel K O'Sullivan, Andrea M Potocny, Joel Rosenthal, Emily S Day
Light-activated therapies are ideal for treating cancer because they are non-invasive and highly specific to the area of light application. Photothermal therapy (PTT) and photodynamic therapy (PDT) are two types of light-activated therapies that show great promise for treating solid tumors. In PTT, nanoparticles embedded within tumors emit heat in response to laser light that induces cancer cell death. In PDT, photosensitizers introduced to the diseased tissue transfer the absorbed light energy to nearby ground state molecular oxygen to produce singlet oxygen, which is a potent reactive oxygen species (ROS) that is toxic to cancer cells...
August 25, 2018: Nanomaterials
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"