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https://www.readbyqxmd.com/read/28351128/nanoparticles-of-titanium-and-zinc-oxides-as-novel-agents-in-tumor-treatment-a-review
#1
Janusz Bogdan, Joanna Pławińska-Czarnak, Joanna Zarzyńska
Cancer has become a global problem. On all continents, a great number of people are diagnosed with this disease. In spite of the progress in medical care, cancer still ends fatal for a great number of the ill, either as a result of a late diagnosis or due to inefficiency of therapies. The majority of the tumors are resistant to drugs. Thus, the search for new, more effective therapy methods continues. Recently, nanotechnology has been attributed with big expectations in respect of the cancer fight. That interdisciplinary field of science creates nanomaterials (NMs) and nanoparticles (NPs) that can be applied, e...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28335356/refinement-of-magnetite-nanoparticles-by-coating-with-organic-stabilizers
#2
Monica Cîrcu, Alexandrina Nan, Gheorghe Borodi, Jürgen Liebscher, Rodica Turcu
Magnetite nanoparticles are of great importance in nanotechnology and nanomedicine and have found manifold applications. Here, the effect of coating of magnetite nanoparticles with organic stabilizers, such as O-phosphoryl ethanolamine, glycerol phosphate, phospho-l-ascorbic acid, phospho-d,l-serine, glycolic acid, lactic acid, d,l-malic acid, and d,l-mandelic acid was studied. Remarkably, this procedure led to an improvement of saturation magnetization in three cases rather than to an unfavorable decrease as usually observed...
November 29, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28300237/modular-synthesis-of-supramolecular-dna-amphiphiles-through-host-guest-interactions-and-their-self-assembly-into-dna-decorated-nanovesicles
#3
Shine K Albert, Hari Veera Prasad Thelu, Murali Golla, Nithiyanandan Krishnan, Reji Varghese
DNA nanostructures have found potential applications in various fields including nanotechnology, materials science and nanomedicine, hence the design and synthesis of DNA nanostructures is extremely important. Self-assembly of DNA amphiphiles provides an efficient strategy for the crafting of soft DNA nanostructures. However, the synthesis of DNA amphiphiles is always challenging. Herein, we show a non-covalent approach based on the host-guest interaction between β-CD and adamantane for the synthesis of DNA amphiphiles, and report their amphiphilicity-driven self-assembly into DNA decorated vesicles...
March 16, 2017: Nanoscale
https://www.readbyqxmd.com/read/28296287/bio-inspired-nanomedicine-strategies-for-artificial-blood-components
#4
REVIEW
Anirban Sen Gupta
Blood is a fluid connective tissue where living cells are suspended in noncellular liquid matrix. The cellular components of blood render gas exchange (RBCs), immune surveillance (WBCs) and hemostatic responses (platelets), and the noncellular components (salts, proteins, etc.) provide nutrition to various tissues in the body. Dysfunction and deficiencies in these blood components can lead to significant tissue morbidity and mortality. Consequently, transfusion of whole blood or its components is a clinical mainstay in the management of trauma, surgery, myelosuppression, and congenital blood disorders...
March 15, 2017: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
https://www.readbyqxmd.com/read/28296286/nanomedicine-approaches-to-improve-cancer-immunotherapy
#5
REVIEW
Hui Qiu, Yuanzeng Min, Zach Rodgers, Longzhen Zhang, Andrew Z Wang
Significant advances have been made in the field of cancer immunotherapy by orchestrating the body's immune system to eradicate cancer cells. However, safety and efficacy concerns stemming from the systemic delivery of immunomodulatory compounds limits cancer immunotherapies expansion and application. In this context, nanotechnology presents a number of advantages, such as targeted delivery to immune cells, enhanced clinical outcomes, and reduced adverse events, which may aid in the delivery of cancer vaccines and immunomodulatory agents...
March 10, 2017: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
https://www.readbyqxmd.com/read/28295864/block-copolymer-micellization-as-a-protection-strategy-for-dna-origami
#6
Nayan P Agarwal, Michael Matthies, Fatih N Gür, Kensuke Osada, Thorsten L Schmidt
DNA nanotechnology enables the synthesis of nanometer-sized objects that can be site-specifically functionalized with a large variety of materials. For these reasons, DNA-based devices such as DNA origami are being considered for applications in molecular biology and nanomedicine. However, many DNA structures need a higher ionic strength than that of common cell culture buffers or bodily fluids to maintain their integrity and can be degraded quickly by nucleases. To overcome these deficiencies, we coated several different DNA origami structures with a cationic poly(ethylene glycol)-polylysine block copolymer, which electrostatically covered the DNA nanostructures to form DNA origami polyplex micelles (DOPMs)...
March 15, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28292726/cell-membrane-derived-nanomaterials-for-biomedical-applications
#7
REVIEW
Ronnie H Fang, Yao Jiang, Jean C Fang, Liangfang Zhang
The continued evolution of biomedical nanotechnology has enabled clinicians to better detect, prevent, manage, and treat human disease. In order to further push the limits of nanoparticle performance and functionality, there has recently been a paradigm shift towards biomimetic design strategies. By taking inspiration from nature, the goal is to create next-generation nanoparticle platforms that can more effectively navigate and interact with the incredibly complex biological systems that exist within the body...
March 1, 2017: Biomaterials
https://www.readbyqxmd.com/read/28291372/spotlight-on-the-delivery-of-photosensitizers-different-approaches-for-photodynamic-based-therapies
#8
Diogo Silva Pellosi, Priscila da Costa Carvalho De Jesus, Antonio Claudio Tedesco
Nanomedicine development allowed the discovery of new photosensitizers (PS) and drug delivery systems (DDS) to overcome current issues on phototherapy. Nano-engineered materials have the potential to improve the solubility of PS, control drug pharmacokinetics, decreasing side effects, increasing bioavailability, and overcoming multidrug resistance. A recent approach is the co-delivery of PS with other therapeutic agents in a multimodal platform for synergic and improved results. Areas covered: This paper discusses the delivery of PS-nanostructured platforms for conventional, photothermal, and antimicrobial photodynamic therapies, as well as in a recent therapeutic modality for photobiomodulation, covering applications of cancer diagnosis, targeting to skin pathogens, photoregeneration and wound healing...
March 27, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28288893/redox-responsive-theranostic-nanoplatforms-based-on-inorganic-nanomaterials
#9
Lu Han, Xiao-Yong Zhang, Yu-Long Wang, Xi Li, Xiao-Hong Yang, Min Huang, Kun Hu, Lu-Hai Li, Yen Wei
Spurred on by advances in materials chemistry and nanotechnology, scientists have developed many novel nanopreparations for cancer diagnosis and therapy. To treat complex malignant tumors effectively, multifunctional nanomedicines with targeting ability, imaging properties and controlled drug release behavior should be designed and exploited. The therapeutic efficiency of loaded drugs can be dramatically improved using redox-responsive nanoplatforms which can sense the differences in the redox status of tumor tissues and healthy ones...
March 10, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28285944/combination-antitumor-therapy-with-targeted-dual-nanomedicines
#10
REVIEW
Wenbing Dai, Xiaoyou Wang, Ge Song, Tongzhou Liu, Bing He, Hua Zhang, Xueqing Wang, Qiang Zhang
Combination therapy is one of the important treatment strategies for cancer at present. However, the outcome of current combination therapy based on the co-administration of conventional dosage forms is suboptimal, due to the short half-lives of chemodrugs, their deficient tumor selectivity and so forth. Nanotechnology-based targeted delivery systems show great promise in addressing the associated problems and providing superior therapeutic benefits. In this review, we focus on the combination of therapeutic strategies between different nanomedicines or drug-loaded nanocarriers, rather than the co-delivery of different drugs via a single nanocarrier...
March 7, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28278586/recent-advances-on-liposomal-nanoparticles-synthesis-characterization-and-biomedical-applications
#11
Yunes Panahi, Masoud Farshbaf, Majid Mohammadhosseini, Mozhdeh Mirahadi, Rovshan Khalilov, Siamak Saghfi, Abolfazl Akbarzadeh
Liposome is a new nanostructure for the encapsulation and delivery of bioactive agents. There are a lot of bioactive materials that could be incorporated into liposomes including cosmetics, food ingredients, and pharmaceuticals. Liposomes possess particular properties such as biocompatibility, biodegradability; accompanied by their nanosize they have potential applications in nanomedicine, cosmetics, and food industry. Nanoliposome technology offers thrilling chances for food technologists in fields including encapsulation and controlled release of food ingredients, also improved bioavailability and stability of sensitive materials...
February 8, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28266269/liposomal-nanotechnology-for-cancer-theranostics
#12
Zhifei Dai, Xiuli Yue
Liposomes are a type of biomimetic nanoparticles generated from self-assembling concentric lipid bilayer enclosing an aqueous core domain. They have been attractive nanocarriers for the delivery of many drugs (e.g. radiopharmaceuticals, chemotherapeutic agents, porphyrin) and diagnostic agents (e.g. fluorescent dyes, quantum dots, Gadolinium complex and Fe3O4) by encapsulating (or adsorbing) hydrophilic one inside the liposomal aqueous core domain (or on the bilayer membrane surface), and by entrapping hydrophobic one within the liposomal bilayer...
March 5, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28264157/unveiling-the-in-vivo-protein-corona-of-circulating-leukocyte-like-carriers
#13
Claudia Corbo, Roberto Molinaro, Francesca Taraballi, Naama E Toledano Furman, Kelly A Hartman, Michael B Sherman, Enrica De Rosa, Dickson K Kirui, Francesco Salvatore, Ennio Tasciotti
Understanding interactions occurring at the interface between nanoparticles and biological components is an urgent challenge in nanomedicine due to their effect on the biological fate of nanoparticles. After the systemic injection of nanoparticles, a protein corona constructed by blood components surrounds the carrier's surface and modulates its pharmacokinetics and biodistribution. Biomimicry-based approaches in nanotechnology attempt to imitate what happens in nature in order to transfer specific natural functionalities to synthetic nanoparticles...
March 28, 2017: ACS Nano
https://www.readbyqxmd.com/read/28255364/leukocyte-mediated-delivery-of-nanotherapeutics-in-inflammatory-and-tumor-sites
#14
REVIEW
Xinyue Dong, Dafeng Chu, Zhenjia Wang
Nanotechnology has become a powerful tool to potentially translate nanomedicine from bench to bedside. Nanotherapeutics are nanoparticles (NPs) loaded with drugs and possess the property of tissue targeting after surfaces of NPs are bio-functionalized. Designing smaller size of nanotherapeutics is presumed to increase tumor targeting based on the EPR (enhanced permeability and retention) effect. Since the immune systems possess a defence mechanism to fight diseases, there is an emerging concept that NPs selectively target immune cells to mediate the active delivery of drugs into sites of disease...
2017: Theranostics
https://www.readbyqxmd.com/read/28250648/the-influence-of-pluronic-f68-and-f127-nanocarrier-on-physicochemical-properties-in-vitro-release-and-antiproliferative-activity-of-thymoquinone-drug
#15
Salwa Shaarani, Shahrul Sahul Hamid, Noor Haida Mohd Kaus
BACKGROUND: This study reports on hydrophobic drug thymoquinone (TQ), an active compound found in the volatile oil of Nigella sativa that exhibits anticancer activities. Nanoformulation of this drug could potentially increase its bioavailability to specific target cells. OBJECTIVE: The aim of this study was to formulate TQ into polymer micelle, Pluronic F127 (5.0 wt %) and Pluronic F68 (0.1 wt %), as a drug carrier to enhance its solubility and instability in aqueous media...
January 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/28238146/air-liquid-interface-cell-exposures-to-nanoparticle-aerosols
#16
Nastassja A Lewinski, Nathan J Liu, Akrivi Asimakopoulou, Eleni Papaioannou, Athanasios Konstandopoulos, Michael Riediker
The field of nanomedicine is steadily growing and several nanomedicines are currently approved for clinical use with even more in the pipeline. Yet, while the use of nanotechnology to improve targeted drug delivery to the lungs has received some attention, the use of nanoparticles for inhalation drug delivery has not yet resulted in successful translation to market as compared to intravenous drug delivery. The reasons behind the lack of inhaled nanomedicines approved for clinical use or under preclinical development are unclear, but challenges related to safety are likely to contribute...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28228073/principal-physicochemical-methods-used-to-characterize-dendrimer-molecule-complexes-used-as-genetic-therapy-agents-nanovaccines-or-drug-carriers
#17
Rodríguez Fonseca Rolando Alberto, Rodrigues Joao, Muñoz-Fernández María de Los Angeles, Martínez Muñoz Alberto, Fragoso Vázquez Manuel Jonathan, Correa Basurto José
Nanomedicine is the application of nanotechnology to medicine. This field is related to the study of nanodevices and nanomaterials applied to various medical uses, such as in improving the pharmacological properties of different molecules. Dendrimers are synthetic nanoparticles whose physicochemical properties vary according to their chemical structure. These molecules have been extensively investigated as drug nanocarriers to improve drug solubility and as sustained-release systems. New therapies such as gene therapy and the development of nanovaccines can be improved by the use of dendrimers...
February 20, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28228070/nanoscale-delivery-systems-actual-and-potential-applications-in-the-natural-products-industry
#18
Antal Diana Simona, Ardelean Florina, Chis Aimée Rodica, Ollivier Evelyne, Serban Maria-Corina
BACKGROUND: Compounds and extracts derived from natural sources continue to stand in the spotlight of drug design owing to their versatile interaction with enzymes, receptors and metabolic pathways. Nanomedicine offers an operative tool for the efficient delivery of natural products, in terms of increased bioavailability, targeting, and controlled release while protecting active constituents against physico-chemical alterations. The interest of the scientific community in the field of nanosized delivery of natural compounds is demonstrated by the exponential growth of the publications in this field...
February 20, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28223185/nanomedicine-as-a-potent-strategy-in-melanoma-tumor-microenvironment
#19
REVIEW
Vincent Pautu, Daniela Leonetti, Elise Lepeltier, Nicolas Clere, Catherine Passirani
Melanoma originated from melanocytes is the most aggressive type of skin cancer. Despite considerable progresses in clinical treatment with the discovery of BRAF or MEK inhibitors and monoclonal antibodies, the durability of response to treatment is often limited to the development of acquired resistance and systemic toxicity. The limited success of conventional treatment highlights the importance of understanding the role of melanoma tumor microenvironment in tumor developement and drug resistance. Nanoparticles represent a promising strategy for the development of new cancer treatments able to improve the bioavailability of drugs and increase their penetration by targeting specifically tumors cells and/or tumor environment...
February 20, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28216905/green-biosynthesis-characterization-in-vitro-antidiabetic-activity-and-investigational-acute-toxicity-studies-of-some-herbal-mediated-silver-nanoparticles-on-animal-models
#20
Kalakotla Shanker, Gottumukkala Krishna Mohan, Md Ashwaq Hussain, Naradala Jayarambabu, Poka Lakshmi Pravallika
Diabetes is a metabolic disorder characterized by hyperglycemia, altered carbohydrate, lipid and protein metabolism. In recent studies, Nanoscience and nanotechnology are blazing fields for researchers; for researchers; of late there has been a prodigious excitement in the field of nanopharmacology to study silver nanoparticle (SNP) synthesis using natural products. Biological methods have been used to synthesize SNPs using medicinally active plants having an antidiabetic role, and this made us to assess the biologically synthesized SNPs from the seed extract of Psoralea corylifolia using 1 mM silver nitrate solution...
January 2017: Pharmacognosy Magazine
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