Tag Archives: nanoparticles
Cerium fluoride nanoparticles protect cells against oxidative stress
Nano-biomaterials engineering is one of today’s most promising areas of materials science. In very recent years, nanocrystalline cerium oxide (nanoceria) has been shown to possess enormous biological activity, which originates from its ability to scavenge the reactive
Binding study of fibrinogen and albumin to metal oxide nanoparticles and its relevance in nanomedicine
The binding of proteins to different inorganic surfaces plays an important role in natural processes such as the growth of bone tissue (protein-mineral interactions) and in biotechnological and biomedical applications. Recently, the binding of proteins to metal
The fate and influence of engineered nanoparticles in wastewater treatment plants
Engineered nanoparticles (ENPs) (intentionally created particles with one or more dimensions greater than 1 nanometer and less than 100 nanometers) are now used in consumer and industrial products. However, there are concerns surrounding their potential effects on
Grow TiO2 nano-crystals on cellulose to sequester lead in water
Heavy metals in water pose significant threat to environment and public health. Lead, for example, when present above the action level in drinking water as a toxin, can cause a variety of adverse health effects such as
Can nanotechnology promote biodegradation of plastics?
It is well-known that plastic waste has become a major environmental problem. Would it not be wonderful if plastics could disappear as they were merely food waste? And even better, would it not be incredible if we
A possible new treatment for Alzheimer’s disease and stroke using nanoparticles
Alzheimer’s disease (AD) and stroke are two neurological disorders that share the common feature of neuronal death. The peptide under investigation here is IRL-1620, which has been shown in previous studies to reverse neuronal death as well
Application of pH-sensitive magnetic microgel in environmental samples
Phenoxy acid herbicides are phytotoxic compounds employed to kill annual and perennial broad leaved weeds in gardens and crops. Phenoxy acid herbicides such as 2,4-dichlorophenoxyacetic acid (2,4 – D), 4 – (2,4 – dichlorophenoxy) butanoic acid (2,4-DB),
Properties of magnetic nanocomposites for biomedical applications
Polymer nanocomposites have been receiving a lot of attention in the field of biomedical engineering. These composite materials, which consist of a polymer as the matrix and nanoparticles (nano-sized particles) as fillers, offer the opportunity for the
Gold “bowtie” coming into reality on two-dimensional MoS2 surface
“Bowtie’’, which is a type of necktie, is very popular in our daily life. In some formal meetings or parties, bowtie is the normal choice to make you look good. Actually, this kind of bowtie structures of
How to design a plasmonic sensor more sensitive to the environment?
Noble metal nanoparticles (NPs) such as Au NPs and Ag NPs support localized surface plasmon resonances (LSPRs), which are the light-coupled coherent oscillations of free electrons confined within the NPs. The LSPRs, which are characterized by the
The passion of electrons for naked “green gold” in water to develop new nanotechnology applications
Electrons are negatively charged particles that are critical to the chemical reactions. Chemical reactions in living organisms, including humans, involve the movement and transfer of electrons. Indeed, the source of energy for life involves the transportation of
Transformative nanomaterial synthesis using biological conditions
One area of promise and concern when using nanomaterials is their potentially high level of reactivity. This comes from the massively increased surface area of the material when it is segmented into much smaller pieces. A copper
A study to establishing the structural integrity of core−shell nanoparticles
Lanthanide – doped core – shell nanoparticles, such as NaYF4:Yb/Er@NaYF4, have attracted increasing attention for applications in photonics, photovoltaics, and biological imaging and therapeutics. When compared to conventional nanoparticles that suffer from extensive and uncontrollable dopant −
The “luminous” gold nanorod: direct observation of electron transfer
Photoluminescence (PL), in which photon is emitted after the absorption of another photon, has been important for many technologies. The first observation of visible PL of gold dates back to 1969, when Mooradian studied bulk gold and
The new photoelectrochemical aptamer biosensor
The photoelectrochemical (PEC) biosensing is a new and promising analytical technique to detect biomolecules with high sensitivity. As core unit of PEC biosensor, photoelectrode materials play an irreplaceable role for its detecting performance. Among them, titanium dioxide
