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https://www.readbyqxmd.com/read/28722430/multi-amplified-sensing-of-microrna-by-a-small-dna-fragment-driven-enzymatic-cascade-reaction
#1
Eunjung Kim, Philip D Howes, Spencer W Crowder, Molly M Stevens
Combining technological developments such as nanomaterials, DNA nanotechnology, and functional enzymes has great potential to facilitate next generation high performance molecular diagnostic systems. In this work, we describe a microRNA (miRNA) detection assay that combines target recycling and isothermal amplification in an elegantly designed enzyme-mediated cascade reaction. Target recycling is driven by the action of duplex-specific nuclease (DSN), resulting in highly amplified translation of input miRNA to short output DNA fragments...
January 27, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28590117/nanotechnology-enhanced-no-wash-biosensors-for-in-vitro-diagnostics-of-cancer
#2
Xiaolin Huang, Yijing Liu, Bryant Yung, Yonghua Xiong, Xiaoyuan Chen
In vitro biosensors have been an integral component for early diagnosis of cancer in the clinic. Among them, no-wash biosensors, which only depend on the simple mixing of the signal generating probes and the sample solution without additional washing and separation steps, have been found to be particularly attractive. The outstanding advantages of facile, convenient, and rapid response of no-wash biosensors are especially suitable for point-of-care testing (POCT). One fast-growing field of no-wash biosensor design involves the usage of nanomaterials as signal amplification carriers or direct signal generating elements...
June 27, 2017: ACS Nano
https://www.readbyqxmd.com/read/28574639/dna-origami-applications-in-cancer-therapy
#3
REVIEW
Anuttara Udomprasert, Thaned Kangsamaksin
Due to the complexity and heterogeneity of cancer, the development of cancer diagnosis and therapy is still progressing, and a complete understanding of cancer biology still remain elusive. Recently, cancer nanomedicine has gained much interest as promising diagnostic and therapeutic strategies as a wide range of nanomaterials possess unique physical properties that can render drug delivery systems more effective and safer. Also, targeted drug delivery and precision medicine have now become a new paradigm in cancer therapy...
June 2, 2017: Cancer Science
https://www.readbyqxmd.com/read/28488883/ultrasensitive-bioanalysis-current-status-and-future-trends
#4
Stéphanie Simon, Eric Ezan
Ligand-binding techniques such as immunoassays, the reference for clinical diagnosis, offer a wide range of innovative approaches based on signal DNA amplification, nanotechnologies or digital assays, which result in technologies with sensitivities more than 1000-times that of formats used 20 years ago. Providing that these technologies gain acceptance and translate into robust commercial platforms, we expect that several fields will be impacted in the near future, including the clinical diagnosis of cancer markers, the early detection of infectious diseases and the safety of biotherapeutics...
May 2017: Bioanalysis
https://www.readbyqxmd.com/read/28480874/emerging-applications-of-nanotechnology-for-diagnosis-and-therapy-of-disease-a-review
#5
Richard H Bayford, Tom Rademacher, Ivan Roitt, Scarlet Wang
Nanotechnology is of increasing interest in the fields of medicine and physiology over recent years. Its application could considerably improve disease detection and therapy, and although the potential is considerable, there are still many challenges, which need to be addressed before it is accepted in routine clinical use. This review focuses on emerging applications that nanotechnology could enhance or provide new approaches in diagnoses and therapy. The main focus of recent research centres on targeted therapies and enhancing imaging; however, the introduction of nanomaterial into the human body must be controlled, as there are many issues with possible toxicity and long-term effects...
May 8, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28394410/nanotechnology-for-electroanalytical-biosensors-of-reactive-oxygen-and-nitrogen-species
#6
REVIEW
Rajesh Seenivasan, Charles Kolodziej, Chandran Karunakaran, Clemens Burda
Over the past several decades, nanotechnology has contributed to the progress of biomedicine, biomarker discovery, and the development of highly sensitive electroanalytical / electrochemical biosensors for in vitro and in vivo monitoring, and quantification of oxidative and nitrosative stress markers like reactive oxygen species (ROS) and reactive nitrogen species (RNS). A major source of ROS and RNS is oxidative stress in cells, which can cause many human diseases, including cancer. Therefore, the detection of local concentrations of ROS (e...
April 10, 2017: Chemical Record: An Official Publication of the Chemical Society of Japan ... [et Al.]
https://www.readbyqxmd.com/read/28391865/a-novel-classification-of-prostate-specific-antigen-psa-biosensors-based-on-transducing-elements
#7
REVIEW
Mansoor Ani Najeeb, Zubair Ahmad, R A Shakoor, A M A Mohamed, Ramazan Kahraman
During the last few decades, there has been a tremendous rise in the number of research studies dedicated towards the development of diagnostic tools based on bio-sensing technology for the early detection of various diseases like cardiovascular diseases (CVD), many types of cancer, diabetes mellitus (DM) and many infectious diseases. Many breakthroughs have been developed in the areas of improving specificity, selectivity and repeatability of the biosensor devices. Innovations in the interdisciplinary areas like biotechnology, genetics, organic electronics and nanotechnology also had a great positive impact on the growth of bio-sensing technology...
June 1, 2017: Talanta
https://www.readbyqxmd.com/read/28356042/recent-advances-in-oncological-submissions-of-dendrimer
#8
Namrata Soni, Muktika Tekade, Prashant Kesharwani, Pallab Bhattacharya, Rahul Maheshwari, Kamal Dua, Philp M Hansbro, Rakesh Kumar Tekade
BACKGROUND: Disseminated metastatic cancer requires insistent management owing to its reduced responsiveness for chemotherapeutic agents, toxicity to normal cells consequently lower survival rate and hampered quality of life of patients. METHODS: Dendrimer mediated cancer therapy is advantageous over conventional chemotherapy, radiotherapy and surgical resection due to reduced systemic toxicity, and molecular level cell injury to cancerous mass, for an appreciable survival of the subject...
March 29, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28303522/nanotechnology-for-the-treatment-of-melanoma-skin-cancer
#9
REVIEW
Lucas B Naves, Chetna Dhand, Jayarama Reddy Venugopal, Lakshminarayanan Rajamani, Seeram Ramakrishna, Luis Almeida
Melanoma is the most aggressive type of skin cancer and has very high rates of mortality. An early stage melanoma can be surgically removed, with a survival rate of 99%. This literature review intends to elucidate the possibilities to treat melanoma skin cancer using hybrid nanofibers developed by advanced electrospinning process. In this review we have shown that the enhanced permeability and retention is the basis for using nanotechnology, aiming topical drug delivery. The importance of the detection of skin cancer in the early stages is directly related to non-metastatic effects and survival rates of melanoma cells...
May 2017: Progress in biomaterials
https://www.readbyqxmd.com/read/28223185/nanomedicine-as-a-potent-strategy-in-melanoma-tumor-microenvironment
#10
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/28217434/gold-nanoparticle-based-platforms-for-circulating-cancer-marker-detection
#11
Xiaohua Huang, Ryan O'Connor, Elyahb Allie Kwizera
Detection of cancer-related circulating biomarkers in body fluids has become a cutting-edge technology that has the potential to noninvasively screen cancer, diagnose cancer at early stage, monitor tumor progression, and evaluate therapy responses. Traditional molecular and cellular detection methods are either insensitive for early cancer intervention or technically costly and complicated making them impractical for typical clinical settings. Due to their exceptional structural and functional properties that are not available from bulk materials or discrete molecules, nanotechnology is opening new horizons for low cost, rapid, highly sensitive, and highly specific detection of circulating cancer markers...
2017: Nanotheranostics
https://www.readbyqxmd.com/read/28203204/circulating-tumor-cells-from-theory-to-nanotechnology-based-detection
#12
REVIEW
Yue Ming, Yuanyuan Li, Haiyan Xing, Minghe Luo, Ziwei Li, Jianhong Chen, Jingxin Mo, Sanjun Shi
Cancer stem cells with stem-cell properties are regarded as tumor initiating cells. Sharing stem-cell properties, circulating tumor cells (CTCs) are responsible for the development of metastasis, which significant affects CTC analysis in clinical practice. Due to their extremely low occurrence in blood, however, it is challenging to enumerate and analyze CTCs. Nanotechnology is able to address the problems of insufficient capture efficiency and low purity of CTCs owing to the unique structural and functional properties of nanomaterials, showing strong promise for CTC isolation and detection...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28157583/identification-of-high-independent-prognostic-value-of-nanotechnology-based-circulating-tumor-cell-enumeration-in-first-line-chemotherapy-for-metastatic-breast-cancer-patients
#13
Xiao-Ran Liu, Bin Shao, Jia-Xi Peng, Hui-Ping Li, Yan-Lian Yang, Wei-Yao Kong, Guo-Hong Song, Han-Fang Jiang, Xu Liang, Ying Yan
Enumeration of circulating tumor cells (CTCs) is a promising tool in the management of metastatic breast cancer (MBC). This study investigated the capturing efficiency and prognostic value of our previously reported peptide-based nanomagnetic CTC isolation system (Pep@MNPs). We counted CTCs in blood samples taken at baseline (n = 102) and later at patients' first clinical evaluation after starting firstline chemotherapy (n = 72) in a cohort of women treated for MBC. Their median follow-up was 16.3 months (range: 9...
April 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28122423/microrna-biomarkers-in-neurodegenerative-diseases-and-emerging-nano-sensors-technology
#14
REVIEW
Pratik Shah, Seok Keun Cho, Peter Waaben Thulstrup, Morten Jannik Bjerrum, Phil Hyu Lee, Ju-Hee Kang, Yong-Joo Bhang, Seong Wook Yang
MicroRNAs (miRNAs) are essential small RNA molecules (20-24 nt) that negatively regulate the expression of target genes at the post-transcriptional level. Due to their roles in a variety of biological processes, the aberrant expression profiles of miRNAs have been identified as biomarkers for many diseases, such as cancer, diabetes, cardiovascular disease and neurodegenerative diseases. In order to precisely, rapidly and economically monitor the expression of miRNAs, many cutting-edge nanotechnologies have been developed...
January 2017: Journal of Movement Disorders
https://www.readbyqxmd.com/read/28098821/tumor-microenvironment-modulation-via-gold-nanoparticles-targeting-malicious-exosomes-implications-for-cancer-diagnostics-and-therapy
#15
REVIEW
Catarina Roma-Rodrigues, Luís R Raposo, Rita Cabral, Fabiana Paradinha, Pedro V Baptista, Alexandra R Fernandes
Exosomes are nanovesicles formed in the endosomal pathway with an important role in paracrine and autocrine cell communication. Exosomes secreted by cancer cells, malicious exosomes, have important roles in tumor microenvironment maturation and cancer progression. The knowledge of the role of exosomes in tumorigenesis prompted a new era in cancer diagnostics and therapy, taking advantage of the use of circulating exosomes as tumor biomarkers due to their stability in body fluids and targeting malignant exosomes' release and/or uptake to inhibit or delay tumor development...
January 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28093991/cancer-nanotechnology-recent-trends-and-developments-in-strategies-for-targeting-cancer-cells-to-improve-cancer-imaging-and-treatment
#16
Jingyao Xu, Xiaoling Zhou, Yifei Li, Yudan Tian
Nanotechnology is a multidisciplinary field, which have the potential to cover applications in many subjects such as biology, chemistry and physics. The combined efforts of these subjects can lead to the successful engineering of nanodevices and nanovectors for targeted delivery and sensing/detection of cancer cells/tissues. The modulation of nanomaterials at surface and bulk level further adds value to this technology and develop strategies for early detection of precancerous and malignant cells from biological fluids...
January 16, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28075057/two-dimensional-nanomaterials-for-cancer-nanotheranostics
#17
Yongjiu Chen, Yakun Wu, Bingbing Sun, Sijin Liu, Huiyu Liu
Emerging nanotechnologies show unprecedented advantages in accelerating cancer theranostics. Among them, two-dimensional nanomaterials (2DNMs) represent a novel type of material with versatile physicochemical properties that have enabled a new horizon for applications in both cancer diagnosis and therapy. Studies have demonstrated that 2DNMs may be used in diverse aspects, including i) cancer detection due to their high propensity towards tumor markers; ii) molecular imaging for guided tumor therapies, and iii) drug and gene loading, photothermal and photodynamic cancer therapies...
January 11, 2017: Small
https://www.readbyqxmd.com/read/27993133/synthesis-and-functionalization-of-protease-activated-nanoparticles-with-tissue-plasminogen-activator-peptides-as-targeting-moiety-and-diagnostic-tool-for-pancreatic-cancer
#18
Sophie Dobiasch, Szilard Szanyi, Aleko Kjaev, Jens Werner, Albert Strauss, Christian Weis, Lars Grenacher, Katya Kapilov-Buchman, Liron-Limor Israel, Jean-Paul Lellouche, Erica Locatelli, Mauro Comes Franchini, Jennifer Vandooren, Ghislain Opdenakker, Klaus Felix
BACKGROUND: Functionalized nanoparticles (NPs) are one promising tool for detecting specific molecular targets and combine molecular biology and nanotechnology aiming at modern imaging. We aimed at ligand-directed delivery with a suitable target-biomarker to detect early pancreatic ductal adenocarcinoma (PDAC). Promising targets are galectins (Gal), due to their strong expression in and on PDAC-cells and occurrence at early stages in cancer precursor lesions, but not in adjacent normal tissues...
December 19, 2016: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/27973767/new-advances-in-nanotechnology-based-diagnosis-and-therapeutics-for-breast-cancer-an-assessment-of-active-targeting-inorganic-nanoplatforms
#19
REVIEW
Priscila Falagan-Lotsch, Elissa M Grzincic, Catherine J Murphy
Breast cancer is a major cause of suffering and mortality among women. Limitations in the current diagnostic methods and treatment approaches have led to new strategies to positively impact the survival rates and quality of life of breast cancer patients. Nanotechnology offers a real possibility of mitigating breast cancer mortality by early-stage cancer detection and more precise diagnosis as well as more effective treatments with minimal side effects. The current nanoplatforms approved for breast cancer therapeutics are based on passive tumor targeting using organic nanoparticles and have not provided the expected significant improvements in the clinic...
January 18, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/27924334/a-protein-corona-enabled-blood-test-for-early-cancer-detection
#20
D Caputo, M Papi, R Coppola, S Palchetti, L Digiacomo, G Caracciolo, D Pozzi
Pancreatic cancer is a very aggressive malignancy that is often diagnosed in the advanced stages, with the implication that long-term survivors are extremely rare. Thus, developing new methods for the early detection of pancreatic cancer is an urgent task for current research. To date, nanotechnology offers unprecedented opportunities for cancer therapeutics and diagnosis. The aim of this study is the development of a new pancreatic cancer diagnostic technology based on the exploitation of the nano-bio-interactions between nanoparticles and blood samples...
January 7, 2017: Nanoscale
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