Read by QxMD icon Read


Silvan Kretschmer, Hannu-Pekka Komsa, Peter Bøggild, Arkady V Krasheninnikov
The polymorphism of two-dimensional (2D) transition-metal dichalcogenides (TMDs) and different electronic properties of the polymorphs make TMDs particularly promising materials in the context of applications in electronics. Recently, local transformations from the semiconducting trigonal prismatic H phase to the metallic octahedral T phase in 2D MoS2 have been induced by electron irradiation [ Nat. Nanotech. 2014 , 9 , 391 ], but the mechanism of the transformations remains elusive. Using density functional theory calculations, we study the energetics of the stable and metastable phases of 2D MoS2 when additional charge, mechanical strain, and vacancies are present...
June 21, 2017: Journal of Physical Chemistry Letters
Priyanka Jain, Shilpa Varshney, Shalini Srivastava
Existing processes for the decontamination of heavy metals from water are found to be cost-prohibitive and energy-intensive which is totally against the sustainable concept of development. Green nanotechnology for water purification for ecosystem management, agricultural and industry is an emerging as leading global priority and occupies better position over the current state of water purification. Herein, the diafunctionalised polyaniline modified nanocellulose composite sorbent (PANI-NCC) has been used to introduce amine and imine functionalities for the removal of trivalent and hexavalent chromium from water bodies...
February 2017: IET Nanobiotechnology
Martin Würmseher, Lea Firmin
Since the early 2000s, numerous publications have presented major scientific opportunities that can be achieved through integrating insights from the area of nanotech into biotech (nanobiotech). This paper aims to explore the economic significance that nanobiotech has gained in the established pharmaceutical industry (big pharma). The empirical investigation draws on patent data as well as product revenue data; and to put the results into perspective, the amounts are compared with the established/traditional biotech sector...
March 2017: Nanomedicine
Alberto Moscatelli
No abstract text is available yet for this article.
December 6, 2016: Nature Nanotechnology
Andrew D Maynard
No abstract text is available yet for this article.
September 7, 2016: Nature Nanotechnology
Gopalan Sampath
Experiments have shown that DNA can be sequenced using an electrolytic cell with a nanopore and an exonuclease enzyme in the cis chamber that cleaves the leading mononucleotide in a strand of DNA. The base therein can be identified with an accuracy of 80-90% by the level of the current blockade caused in the pore; a biological adapter inside slows down the cleaved mononucleotide and lowers the detection bandwidth required. In this approach, which has been mathematically modeled, analyzed, and simulated, mononucleotides are likely to be lost to diffusion or enter the pore out of order...
September 2016: Electrophoresis
Yi Ming, Hui-Min Li, Ze-Jun Ding
Thermal rectification and negative differential thermal conductance were realized in harmonic chains in this work. We used the generalized Caldeira-Leggett model to study the heat flow. In contrast to most previous studies considering only the linear system-bath coupling, we considered the nonlinear system-bath coupling based on recent experiment [Eichler et al., Nat. Nanotech. 6, 339 (2011)]. When the linear coupling constant is weak, the multiphonon processes induced by the nonlinear coupling allow more phonons transport across the system-bath interface and hence the heat current is enhanced...
March 2016: Physical Review. E
Jose F Rodrigues, Fernando V Paulovich, Maria Cf de Oliveira, Osvaldo N de Oliveira
An overview is provided of the challenges involved in building computer-aided diagnosis systems capable of precise medical diagnostics based on integration and interpretation of data from different sources and formats. The availability of massive amounts of data and computational methods associated with the Big Data paradigm has brought hope that such systems may soon be available in routine clinical practices, which is not the case today. We focus on visual and machine learning analysis of medical data acquired with varied nanotech-based techniques and on methods for Big Data infrastructure...
April 2016: Nanomedicine
Rohan Lalani, Ambikanandan Misra, Jitendra Amrutiya, Hinal Patel, Priyanka Bhatt, Sushil K Patil
BACKGROUND: The development and progression of atherosclerosis is known to occur at a sluggish pace and the lesions remain concealed for a long duration before the factual situation of the complex atherosclerotic etiology affecting various organ gets apprehended. The root cause mainly involves an imbalance or malfunction of the cholesterol metabolizing pathway. The till date therapeutic alternatives include oral hypo-lipidemic agents along with advances made in biotechnology/tissue engineering and surgical procedures for management purpose...
2016: Recent Patents on Drug Delivery & Formulation
Kateryna Bazaka, Mohan V Jacob, Kostya Ken Ostrikov
Sustainable societal and economic development relies on novel nanotechnologies that offer maximum efficiency at minimal environmental cost. Yet, it is very challenging to apply green chemistry approaches across the entire life cycle of nanotech products, from design and nanomaterial synthesis to utilization and disposal. Recently, novel, efficient methods based on nonequilibrium reactive plasma chemistries that minimize the process steps and dramatically reduce the use of expensive and hazardous reagents have been applied to low-cost natural and waste sources to produce value-added nanomaterials with a wide range of applications...
January 13, 2016: Chemical Reviews
Paurush Ambesh, Daniel Gregory Angeli
Nanotechnology is a promising, novel field of technological development. There is great potential in research and clinical applications for neurological diseases. Here we chronicle the inception of nanotechnology, discuss its integration with neurology, and highlight the challenges in current application. Some of the problems involving practical use of neuronanotechnology are direct biological toxicity, visualization of the nanodevice, and the short life expectancy of nanomachinery. Neuron cell therapy is an upcoming field for the treatment of challenging problems in neurology...
October 2015: Annals of Indian Academy of Neurology
Chris Toumey
No abstract text is available yet for this article.
July 2015: Nature Nanotechnology
Peng Yin
No abstract text is available yet for this article.
2015: Journal of Biomolecular Structure & Dynamics
Fidel Castro Díaz-Balart, Richard Stone
No abstract text is available yet for this article.
May 15, 2015: Science
Riccardo Di Corato, Gaëlle Béalle, Jelena Kolosnjaj-Tabi, Ana Espinosa, Olivier Clément, Amanda K A Silva, Christine Ménager, Claire Wilhelm
The ongoing nanotech revolution has the potential to transform diagnostic and therapeutic methods. Stimuli-triggered nanotherapies based on remotely activated agents have become attractive alternatives to conventional chemotherapy. Herein, we designed an optimized smart nanoplatform based on dually loaded hybrid liposomes to achieve enhanced tumor therapy. The aqueous core was highly loaded with iron oxide nanoparticles, while the lipid bilayer was supplied with a photosensitizer payload. The double cargo translated into double functionality: generation of singlet oxygen under laser excitation and heat production under alternating magnetic field stimulation, coupling photodynamic therapy (PDT) to magnetic hyperthermia (MHT)...
March 24, 2015: ACS Nano
Angelo Gismondi, Giacomo Reina, Silvia Orlanducci, Francesca Mizzoni, Stefano Gay, Maria L Terranova, Antonella Canini
Nanodiamond application in biotechnological and medical fields is nowadays in continuous progress. In fact, biocompatibility, reduced dimensions and high surface chemical interaction are specific features that make nanodiamonds perfect intracellular carriers of bioactive compounds. By confocal microscopy, we confirmed that nanodiamonds were able to penetrate in cell cytoplasm but we also demonstrated how they remained embedded in nuclear membrane just exposing some little portions into nuclear area, definitively clarifying this topic...
January 2015: Biomaterials
Javier Sánchez-Rodríguez, Enrique Vacas-Córdoba, Rafael Gómez, F Javier De La Mata, Ma Ángeles Muñoz-Fernández
More than three decades since its discovery, HIV infection remains one of the most aggressive epidemics worldwide, with more than 35 million people infected. In sub-Saharan Africa, heterosexual transmissions represent nearly 80% of new infections, with 50% of these occurring in women. In an effort to stop the dramatic spread of the HIV epidemic, new preventive treatments, such as microbicides, have been developed. Nanotechnology has revolutionized this field by designing and engineering novel highly effective nano-sized materials as microbicide candidates...
January 2015: Antiviral Research
Carrie Printz
No abstract text is available yet for this article.
September 15, 2014: Cancer
Vladimir M Fomin, Markus Hippler, Veronika Magdanz, Lluís Soler, Samuel Sanchez, Oliver G Schmidt
We describe the propulsion mechanism of the catalytic microjet engines that are fabricated using rolled-up nanotech. Microjets have recently shown numerous potential applications in nanorobotics but currently there is a lack of an accurate theoretical model that describes the origin of the motion as well as the mechanism of self-propulsion. The geometric asymmetry of a tubular microjet leads to the development of a capillary force, which tends to propel a bubble toward the larger opening of the tube. Because of this motion in an asymmetric tube, there emerges a momentum transfer to the fluid...
February 1, 2014: IEEE Transactions on Robotics: a Publication of the IEEE Robotics and Automation Society
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"