Tag Archives: nanoparticles
Green synthesized Ag/AgCl nanoparticles using Malva Sylvestris aqueous leaf extracts
Nanoparticles are molecular or atomic aggregations with a size range of 1-100 nm. Their physical and chemical properties are different from bulk materials with the same formula. They can be produced by chemical, physical and green methods;
High potential polymer carriers to enhance antibiotic efficiency in bacterial biofilms
Cystic fibrosis (CF) is a frequent genetic disease resulting in chronic and difficult-to-treat pulmonary infections and inflammation that needs a lifelong treatment with aggressive antibiotic therapy by oral, intravenous or inhaled routes. The most abundant bacterial species
Superradient and subradient emission of molecules coupled via plasmons
A physical dipole consists of two equal and opposite point charges. Atoms and molecules can be viewed like oscillating dipoles, picturing each atom as a tiny antenna emitting electromagnetic waves. The excited atomic states are relaxing to
Nanotechnology, is it something useful for future agriculture?
Nanotechnology has been applied in various fields – biomedicine, electronic devices, renewable energy optical electronic medicine, physics, pharmaceutics. Does it have a place in agriculture? It is generally accepted that manipulation of a crop’s native microbiome represents
Magnetic NPs for automatic speciation analysis of inorganic arsenic in environmental water samples
Arsenic is a ubiquitous element in the environment originated from natural sources as well as human activities. This element has been identified as a public health problem because it has serious toxic effects even at low exposure
How can we make nanoparticles more effective against cancer?
Chemotherapy is an integral part of the present cancer treatment paradigm, despite its common and severe side effects. Nanotechnology provides a plethora of promising avenues for overcoming chemotherapy limitations. Drug encapsulation within nanoparticles helps to retain it
New inflammatory properties of nanoparticles (NPs): NPs can alter the biology of human eosinophils
The term nanoparticles (NPs) refer to particles with a very small size ranging in the nanometer scale. One nanometer (nm) is a unit of measure corresponding to a billionth of a meter. In general, the definition of
DIY materials will allow scientists and engineers to re-make the world
Human development has been based on making the best possible use of natural materials and resources – initially plants, wood, stone and metals, before the evolution of man-made materials such as plastics. All of these kinds of
How engineered nanoparticles are affecting the treatment of wastewater
In recent years, engineered nanoparticles (ENPs) have been incorporated into a variety of consumer products such as technology, cosmetics, pharmaceuticals and clothing to name but a few. ENPs can be defined as intentionally created particles sized 1-100
Unmet clinical needs in the treatment of systemic fungal infections. Reformulating repurposed drugs such as amphotericin B
A recent increase in the frequency of fungal infections has led to a higher number of fungal species that can cause these pathologies, as well as a decrease in the number of effective treatments against them due
Nanosensor for diabetes management
Diabetes is a major health concern for millions around the world. In addition to the analysis of free glucose level in blood, glucose bound to haemoglobin (HbA1c) is considered to be a very useful diagnostic marker for
Electrically controlled insulin release
Stimuli responsive materials are promising for designing the next generation of drug delivery systems. Such materials would enable drugs to be released on-demand or in response to patient needs, specifically at the target site, minimizing side effects.
Metal nanoparticles wire up nanowires for better battery materials
New materials are making advancements in higher power, longer life and faster charging batteries a reality. These improvements have been driven by the uptake in electric vehicles and a host of other applications that require long life
Getting health allies from agriculture enemies
In recent years, research in nanotechnologies has demonstrated that nanometer-sized particles constructed using a wide array of materials (e.g. metals, lipids, polymers, proteins) can offer answers to unmet questions concerning drug/vaccine delivery. Ideally, these systems should prevent
Gold-silver nanoparticles instead of traditional diabetic drugs
Recently, we have published a pioneering work on green biosynthesis and complete characterization of gold and core shell silver-gold nanoparticles (AuNPs and Ag@AuNPs) via using green biopolymer in the influence of microwave radiation. These synthesized nanoparticles provide
Inhaled metal oxide nanoparticles’ retention in the pulmonary tissue can be hindered by their relatively high solubilization counterbalancing their unfavorable action on the free pulmonary cells response
We hypothesized that pulmonary clearance vs. retention of metal oxide nanoparticles (NPs) is controlled not only by activity of phagocytes and other physiological mechanisms but also by the NP solubilization which, in some cases, may even prevail
Enzymes digestible nanoparticles: a new generation of biodegradable drug delivery nanosystem
Pathologies with high death rates such as cancers may well have found their solutions with the rise of nanotechnology. Nanotechnology is a newly coined word encompassing the application of nanoparticles for all kinds of technological challenges. A
Interaction of ZnO nanoparticle with biological system
Zinc oxide nanoparticles (ZnO NPs) are one of the few nanoparticles synthesised industrially. This nanoparticle possesses a broad spectrum of application in rubber industry, optoelectronics, biomedical sector and pharmaceutics. With extensive applications the exposure risk also increases
Multidimensional screening anti-counterfeiting: shapes and images
Multidimensional anti-counterfeiting technique, which could display diverse images depending on different readout conditions, provides an unparalleled approach to improve the information security and holds great potential in practical applications. Although it has been achieved by varied wavelength,
