so Bailie did it manually. e used a sheet of plastic with silver nanowires on it, he said. hen we built a tool that uses pressure to transfer the nanowires onto the perovskite cell, kind of like a temporary tattoo.
Gong and her students also have been based studying bio polymers for more than a decade. CNF offers many benefits over current chip substrates, she says. he advantage of CNF over other polymers is that it a bio-based material and most other polymers are based petroleum polymers.
Bio-based materials are sustainable biocompatible and biodegradable, Gong says. nd, compared to other polymers,
CNF actually has a relatively low thermal expansion coefficient. The group work also demonstrates a more environmentally friendly process that showed performance similar to existing chips.
these particles are coated with polymers, which fine-tune their optical properties and their rate of degradation in the body.
These polymers can be loaded with drugs that are released gradually. Finally, carbon nanoparticles are rather small, less than eight nanometres in diameter (in comparison,
Scientists also found that they can alter the infusion of the particles into melanoma cells by adjusting the polymer coatings.
Scientists say that they can be coated with different polymers to give them different optical properties to make them even easier to detect in the organism,
When pressure is increased in the pores of the polymer, the structure swells and expands in a preferred direction.
The walls of the cells are made of a non-swellable polymer; a swellable polymer fills the interior of the chambers.
If the pressure inside the cells increases, for example, because the swellable polymer absorbs liquids, the structure expands in one direction.
Advanced Materials Interfaces/MPI of Colloids and Interfacesif you enjoy walking in the woods, you may well be familiar with the phenomenon.
To this end, they developed a computer simulation as well as tissue-like materials from a porous polymer in
Moveable parts of such robots, the actuators, might consist of a porous polymer with precisely defined pore properties. he actual motion could then be controlled by compressed air or an expandable fluid in the pores
The researchers were delighted also that the theoretical predictions from the computer simulation almost perfectly matched the results of their tests on synthesized porous polymer materials.
says Dunlop. Synthetic polymer honeycomb structures from a 3d printerthe composition of the cell walls plays a key role in the expansion process in the relevant cells of pinecones
The researchers simulated this structure for their practical experiments by bonding two different swellable polymer layers together.
The scientists envisage using porous polymer materials whose pores are filled with a hygroscopic fluid, for example a superabsorbing hydrogel, in future practical applications.
as well as semiconductive and conductive polymers to tailor the behavior of natural cotton fibers. he layers were so thin that the flexibility of the cotton fibers is preserved always,
which are coated with a charged polymer layer that helps them adhere to the target microbes,
and Staphylococcus epidermis, a bacterium that can cause harmful biofilms on plastics like catheters in the human body.
However, these devices, often created with nondegradable elastic polymers, bear an inherent risk of intestinal obstruction as a result of accidental fracture or migration.
Now, researchers at MIT Koch Institute for Integrative Cancer Research and Massachusetts General Hospital (MGH) have created a polymer gel that overcomes this safety concern
This polymer is ph-responsive: It is stable in the acidic stomach environment but dissolves in the small intestine near-neutral ph,
and folding of devices into easily ingestible capsules meaning this polymer can be used to create safe devices designed for extremely prolonged residence in the stomach. ne of the issues with any device in the GI TRACT is that there the potential for an obstruction,
polymer gel for creating gastric devices. Shiyi Zhang, a postdoc at the Koch Institute, is the paper lead author.
the researchers were interested in developing a polymer with elastic properties. n elastic device can be folded into something small,
But the size and shape of existing devices with elastic polymers have been limited by safety concerns,
Because of this, the researchers wanted their polymer to also be enteric or have a mechanism that would enable it to pass through the stomach unaltered before disintegrating in the intestines. o lower any possible risk of obstruction,
the researchers synthesized an elastic polymer and combined it in solution with a clinically utilized enteric polymer.
Adding hydrochloric acid and centrifuging the solution resulted in a flexible, yet resilient, polymer gel that exhibits both elastic and enteric properties.
The researchers used the gel polycaprolactone (PCL), a nontoxic, degradable polyester, to construct several device prototypes.
They first created ring-shaped devices by using the gel to link arcs of PCL in a circular mold.
the polymer gel dissolved, allowing for the safe passage of the small PCL pieces without obstruction.
Improving adherence The combined enteric and elastic properties of this polymer gel could significantly improve the design and adoption of gastric-resident devices.
With further work in adjusting the polymer composition or the design of the system they say that they could tailor devices to release drugs over a specific timeframe of up to weeks or months at a time.
The researchers have been studying bio-based polymers for more than a decade. While they showed some promise,
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