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Nanomedicine nanotechnology

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https://www.readbyqxmd.com/read/29045030/drug-delivery-to-the-brain-across-the-blood-brain-barrier-using-nanomaterials
#1
REVIEW
Yung-Hao Tsou, Xue-Qing Zhang, He Zhu, Sahla Syed, Xiaoyang Xu
A major obstacle facing brain diseases such as Alzheimer's disease, multiple sclerosis, brain tumors, and strokes is the blood-brain barrier (BBB). The BBB prevents the passage of certain molecules and pathogens from the circulatory system into the brain. Therefore, it is nearly impossible for therapeutic drugs to target the diseased cells without the assistance of carriers. Nanotechnology is an area of growing public interest; nanocarriers, such as polymer-based, lipid-based, and inorganic-based nanoparticles can be engineered in different sizes, shapes, and surface charges, and they can be modified with functional groups to enhance their penetration and targeting capabilities...
October 16, 2017: Small
https://www.readbyqxmd.com/read/29039189/composing-rna-nanostructures-from-a-syntax-of-rna-structural-modules
#2
Cody Geary, Arkadiusz Chworos, Erik Verzemnieks, Neil R Voss, Luc Jaeger
Natural stable RNAs fold and assemble into complex three-dimensional architectures by relying on the hierarchical formation of intricate, recurrent networks of non-covalent tertiary interactions. These sequence-dependent networks specify RNA structural modules enabling orientational and topological control of helical struts to form larger self-folding domains. Borrowing concepts from linguistics, we defined an extended structural syntax of RNA modules for programming RNA strands to assemble into complex, responsive nanostructures under both thermodynamic and kinetic control...
October 17, 2017: Nano Letters
https://www.readbyqxmd.com/read/29039088/evaluating-nanomedicines-obstacles-and-advancements
#3
Magdalena Swierczewska, Rachael M Crist, Scott E McNeil
Continued advancements in nanotechnology are expanding the boundaries of medical research, most notably as drug delivery agents for treatment against cancer. Drug delivery with nanotechnology can offer greater control over the biodistribution of therapeutic agents to improve the therapeutic index. In the last 20 years, a number of nanomedicines have transitioned into the clinic. As nanomedicines evolve, techniques to properly evaluate their safety and efficacy must also evolve. Characterization methods for nano-based materials must be adapted to the demands of nanomedicine developers and regulators...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29038380/integrating-nanomedicine-and-imaging
#4
REVIEW
Carlos Pérez-Medina, Sjoerd Hak, Thomas Reiner, Zahi A Fayad, Matthias Nahrendorf, Willem J M Mulder
Biomedical engineering and its associated disciplines play a pivotal role in improving our understanding and management of disease. Motivated by past accomplishments, such as the clinical implementation of coronary stents, pacemakers or recent developments in antibody therapies, disease management now enters a new era in which precision imaging and nanotechnology-enabled therapeutics are maturing to clinical translation. Preclinical molecular imaging increasingly focuses on specific components of the immune system that drive disease progression and complications, allowing the in vivo study of potential therapeutic targets...
November 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/29026204/engineering-and-physical-sciences-in-oncology-challenges-and-opportunities
#5
REVIEW
Michael J Mitchell, Rakesh K Jain, Robert Langer
The principles of engineering and physics have been applied to oncology for nearly 50 years. Engineers and physical scientists have made contributions to all aspects of cancer biology, from quantitative understanding of tumour growth and progression to improved detection and treatment of cancer. Many early efforts focused on experimental and computational modelling of drug distribution, cell cycle kinetics and tumour growth dynamics. In the past decade, we have witnessed exponential growth at the interface of engineering, physics and oncology that has been fuelled by advances in fields including materials science, microfabrication, nanomedicine, microfluidics, imaging, and catalysed by new programmes at the National Institutes of Health (NIH), including the National Institute of Biomedical Imaging and Bioengineering (NIBIB), Physical Sciences in Oncology, and the National Cancer Institute (NCI) Alliance for Nanotechnology...
October 13, 2017: Nature Reviews. Cancer
https://www.readbyqxmd.com/read/29023366/personalized-nanomedicine-a-revolution-at-the-nanoscale
#6
REVIEW
Cristina Fornaguera, Maria José García-Celma
Nanomedicine is an interdisciplinary research field that results from the application of nanotechnology to medicine and has the potential to significantly improve some current treatments. Specifically, in the field of personalized medicine, it is expected to have a great impact in the near future due to its multiple advantages, namely its versatility to adapt a drug to a cohort of patients. In the present review, the properties and requirements of pharmaceutical dosage forms at the nanoscale, so-called nanomedicines, are been highlighted...
October 12, 2017: Journal of Personalized Medicine
https://www.readbyqxmd.com/read/29019032/nanotechnology-as-a-delivery-tool-for-precision-cancer-therapies
#7
Bhawna Sharma, Rachael M Crist, Pavan P Adiseshaiah
Genomic analyses from patients with cancer have improved the understanding of the genetic elements that drive the disease, provided new targets for treating this relentless disease, and offered criteria for stratifying patient populations that will benefit most from treatments. In the last decade, several new targeted therapies have been approved by the FDA based on these omics findings, leading to significantly improved survival and quality of life for select patient populations. However, many of these precision medicines, e...
October 10, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28990403/redox-potential-and-ros-mediated-nanomedicines-for-improving-cancer-therapy
#8
Sterling Glass, Laura Gonzalez Fajardo, Andre Beringhs, Xiuling Lu
SIGNIFICANCE: The overabundance of reactive oxygen species (ROS) and antioxidants in cancer cells represents a challenge for therapeutic intervention, while also providing an opportunity for the development of new strategies to improve clinical therapeutic outcomes. Recent Advances: Nanotechnology has advanced tremendously in recent decades and now offers many potential opportunities to leverage altered redox status to improve conventional therapies. Highly tunable nanoparticle delivery systems have shown great promise for improving: 1) chemotherapy via selective redox-sensitive drug release in tumor cells and limited systemic toxicity; 2) photodynamic therapy via enhancing photoactivation and/or ROS production; and 3) radiation therapy via enhancing ROS production...
October 7, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28971063/nanoparticle-drones-to-target-lung-cancer-with-radiosensitizers-and-cannabinoids
#9
Wilfred Ngwa, Rajiv Kumar, Michele Moreau, Raymond Dabney, Allen Herman
Nanotechnology has opened up a new, previously unimaginable world in cancer diagnosis and therapy, leading to the emergence of cancer nanomedicine and nanoparticle-aided radiotherapy. Smart nanomaterials (nanoparticle drones) can now be constructed with capability to precisely target cancer cells and be remotely activated with radiation to emit micrometer-range missile-like electrons to destroy the tumor cells. These nanoparticle drones can also be programmed to deliver therapeutic payloads to tumor sites to achieve optimal therapeutic efficacy...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28945418/nanomedicine-2-0
#10
Warren C W Chan
Nanotechnology can profoundly change the way we diagnose and treat diseases, but the ability to control how engineered nanoparticles behave within the body remains largely elusive. This Commentary describes the progress and limitations of nanomedicine and the research and experimental philosophies that should be considered in our quest to advance nanotechnology to the clinic.
March 21, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28941641/targeting-tumor-associated-macrophages-the-new-challenge-for-nanomedicine
#11
REVIEW
Fernando Torres Andón, Elisabeth Digifico, Akihiro Maeda, Marco Erreni, Alberto Mantovani, María José Alonso, Paola Allavena
The engineering of new nanomedicines with ability to target and kill or re-educate Tumor Associated Macrophages (TAMs) stands up as a promising strategy to induce the effective switching of the tumor-promoting immune suppressive microenvironment, characteristic of tumors rich in macrophages, to one that kills tumor cells, is anti-angiogenic and promotes adaptive immune responses. Alternatively, the loading of monocytes/macrophages in blood circulation with nanomedicines, may be used to profit from the high infiltration ability of myeloid cells and to allow the drug release in the bulk of the tumor...
September 20, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28941640/nanoparticle-impact-on-innate-immune-cell-pattern-recognition-receptors-and-inflammasomes-activation
#12
REVIEW
Ana Luísa Silva, Carina Peres, João Conniot, Ana I Matos, Liane Moura, Bárbara Carreira, Vanessa Sainz, Anna Scomparin, Ronit Satchi-Fainaro, Véronique Préat, Helena F Florindo
Nanotechnology-based strategies can dramatically impact the treatment, prevention and diagnosis of a wide range of diseases. Despite the unprecedented success achieved with the use of nanomaterials to address unmet biomedical needs and their particular suitability for the effective application of a personalized medicine, the clinical translation of those nanoparticulate systems has still been impaired by the limited understanding on their interaction with complex biological systems. As a result, unexpected effects due to unpredicted interactions at biomaterial and biological interfaces have been underlying the biosafety concerns raised by the use of nanomaterials...
September 20, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28933284/enzyme-instructed-self-assembly-in-biological-milieu-for-theranostics-purpose
#13
Zhentao Huang, Qingxin Yao, Simin Wei, Jiali Chen, Yuan Gao
Precision medicine is in an urgent need for public healthcare. Among the past several decades, the flourishing development in nanotechnology significantly advances the realization of precision nanomedicine. Comparing to well-documented nanoparticle-based strategy, in this review we focus on the strategy using enzyme instructed self-assembly (EISA) in biological milieu for theranostics purpose. In principle, the design of small molecules for EISA requires two aspects: (1) the substrate of enzyme of interest; (2) self-assembly potency after enzymatic conversion...
September 20, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28925905/nanomedicine-in-the-diagnosis-and-treatment-of-atherosclerosis-a-systematic-review
#14
Kannan Vaidyanathan, Sandhya Gopalakrishnan
BACKGROUND: Atherosclerosis is a chronic inflammatory condition causing very high morbidity and mortality. It is characterized by accumulation of plaques within arteries. Nanomedicine is an emerging field of medicine utilizing nanotechnology for advanced imaging and therapy. Nanomedicine has led to significant developments in the field of cardiovascular diseases, including atherosclerosis. Many nanoformulations have been developed with anti-atherosclerotic effects. Nanomedicine tools have been used in the imaging of atherosclerosis...
September 18, 2017: Cardiovascular & Hematological Disorders Drug Targets
https://www.readbyqxmd.com/read/28911309/formulation-quality-control-and-safety-issues-of-nanocarriers-used-for-cancer-treatment
#15
Ismael D Bianco, Marcelo R Ceballos, Cristian Casado, Viviana G Dabbene, Carolina Rizzi, R Kiyomi Mizutamari
Cancer is becoming a leading cause of death in the last years. Although we have seen great advances, most human cancers remain incurable because many patients either do not respond or relapse to treatment. Several lines of research are disclosing new therapeutic targets which lead to new active drugs. However, there are still unsolved problems related to stabilization of the pharmaceutical ingredient in aqueous and biological media, pharmacokinetic and pharmacodynamic profiles and cellular uptake to name just a few...
June 7, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28899817/acute-oral-toxicity-study-of-magnesium-oxide-nanoparticles-and-microparticles-in-female-albino-wistar-rats
#16
Bhanuramya Mangalampalli, Naresh Dumala, Paramjit Grover
Advancements in nanotechnology have led to the development of the nanomedicine, which involves nanodevices for diagnostic and therapeutic purposes. A key requirement for the successful use of the nanoparticles (NPs) in biomedical applications is their good dispensability, colloidal stability in biological media, internalization efficiency, and low toxicity. Therefore, toxicological profiling is necessary to understand the mechanism of NPs and microparticles (MPs). MgO NPs have attracted wide scientific interest due to ease of synthesis, chemical stability and unique properties...
September 9, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28898759/cuprous-oxide-nanoparticles-trigger-er-stress-induced-apoptosis-by-regulating-copper-trafficking-and-overcoming-resistance-to-sunitinib-therapy-in-renal-cancer
#17
Qiwei Yang, Ye Wang, Qing Yang, Yi Gao, Xiaopeng Duan, Qingcheng Fu, Chuanmin Chu, Xiuwu Pan, Xingang Cui, Yinghao Sun
While the current standard first-line treatment for advanced renal cell carcinoma (RCC) is sunitinib, patients inevitably develop resistance to this drug. However, the rapid development of nanotechnology has provided emerging techniques for the treatment of advanced tumours, including RCC. In our previous research, cuprous oxide nanoparticles (CONPs) showed ideal anti-tumour effects and low systemic toxicity. While many inorganic nanomedicines, including CONPs, have similar pharmacological effects, their detailed mechanisms remain unknown...
November 2017: Biomaterials
https://www.readbyqxmd.com/read/28875844/the-clinical-translation-of-organic-nanomaterials-for-cancer-therapy-a-focus-on-polymeric-nanoparticles-micelles-liposomes-and-exosomes
#18
Stefano Palazzolo, Samer Bayda, Mohamad Hadla, Isabella Caligiuri, Giuseppe Corona, Giuseppe Toffoli, Flavio Rizzolio
The application of nanotechnology in the medical field is called nanomedicine. Nowadays, this new branch of science is a point of interest for many investigators due to the important advances in which we assisted in the lasts decades, in particular for cancer treatment. Cancer nanomedicine has been applied in different fields such as drug delivery, nanoformulation and nanoanalytical contrast reagents. The application of nanotechnology to pharmaceutical science allowed to build up nanosystems based on at least two stage vectors (drug/nanomaterial), which often shown a better pharmacokinetics (PK), bioavailability and biodistribution...
August 29, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28866227/polymeric-nanoparticles-a-study-on-the-preparation-variables-and-characterization-methods
#19
REVIEW
Carina I C Crucho, Maria Teresa Barros
Since the emergence of Nanotechnology in the past decades, the development and design of nanomaterials has become an important field of research. An emerging component in this field is nanomedicine, wherein nanoscale materials are being developed for use as imaging agents or for drug delivery applications. Much work is currently focused in the preparation of well-defined nanomaterials in terms of size and shape. These factors play a significantly role in the nanomaterial behavior in vivo. In this context, this review focuses on the toolbox of available methods for the preparation of polymeric nanoparticles...
November 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28865004/gold-nanoparticles-with-patterned-surface-monolayers-for-nanomedicine-current-perspectives
#20
REVIEW
Paolo Pengo, Maria Şologan, Lucia Pasquato, Filomena Guida, Sabrina Pacor, Alessandro Tossi, Francesco Stellacci, Domenico Marson, Silvia Boccardo, Sabrina Pricl, Paola Posocco
Molecular self-assembly is a topic attracting intense scientific interest. Various strategies have been developed for construction of molecular aggregates with rationally designed properties, geometries, and dimensions that promise to provide solutions to both theoretical and practical problems in areas such as drug delivery, medical diagnostics, and biosensors, to name but a few. In this respect, gold nanoparticles covered with self-assembled monolayers presenting nanoscale surface patterns-typically patched, striped or Janus-like domains-represent an emerging field...
September 1, 2017: European Biophysics Journal: EBJ
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