Research team examines graphene's effects on the lungs

Researchers from Empa and the Adolphe Merkle Institute (AMI) in Fribourg have conducted studies on a 3D lung model to examine the behavior of graphene and graphene-like materials once they have been inhaled.

AMI lung model imageThe lung model at Adolphe Merkle Institute (AMI)

Thanks to the 3-D lung model, the researchers have succeeded in simulating the actual conditions at the blood-air barrier and the impact of graphene on the lung tissue as realistically as possible – without any tests on animals or humans. It is a cell model representing the lung alveoli. Conventional in vitro tests work with cell cultures from just one cell type – the newly established lung model, on the other hand, bears three different cell types, which simulate the conditions inside the lung, namely alveolar epithelial cells and two kinds of immune cells – macrophages and dendritic cells.

Researchers develop a technique to fabricate large squares of graphene riddled with controlled holes

Researchers at MIT have found a way to directly “pinprick” microscopic holes into graphene as the material is grown in the lab. Using this technique, they have fabricated relatively large sheets of graphene (roughly the size of a postage stamp), with pores that could make filtering certain molecules out of solutions vastly more efficient.

Holes would typically be considered unwanted defects, but the MIT team has found that certain defects in graphene can be an advantage in fields such as dialysis. Typically, much thicker polymer membranes are used in laboratories to filter out specific molecules from solution, such as proteins, amino acids, chemicals, and salts. If it could be tailored with selectively-sized pores that let through certain molecules but not others, graphene could substantially improve separation membrane technology.

Archer Exploration to work on graphene-based biosensors with undisclosed German biotech partner

Archer Exploration logo imageArcher Exploration has announced that it has entered into a legally binding Material Transfer Agreement (“MTA”) with a leading German biotechnology company, regarding Archer’s graphene-based biosensor development activities with The University of Adelaide ARC Graphene Hub.

The Agreement involves the transfer of materials between Archer and the Partner for use in the development of electrochemical biosensors for the semi-quantitative detection of disease state markers. The materials to be used include those held in the inventory of the Partner (e.g. infectious disease antigens, antibodies, disease state sera, coupling and assay reagents) and materials in the inventory of Archer’s wholly owned subsidiary Carbon Allotropes (e.g. graphene, ink formulations, and printed graphene electrodes).

Graphene-enhanced pants to help the disabled with their mobility

Researchers at the University of Bristol are developing graphene-enabled ‘smart trousers’ with artificial ‘muscles’ which could help the elderly and disabled with their mobility.

The project, funded by the Engineering and Physical Sciences Research Council (EPSRC), incorporates a number of technologies including smart electronics and graphene. Some items of clothing which make use of these, including a pair of ‘power trousers’, have already been demonstrated at the British Science Festival.

Graphene-based sensor can identify biomarkers of Aging

A new study by KGI, UC Berkeley and Nanomedical Diagnostics researchers illustrates the impact of a graphene-based biosensors in identifying the circulating biomarkers of aging.

As a way to replace conventional assays, the research team presented a new portable digital device for biosensing based on functionalized graphene that can be employed for any click-able application. The lab-on-a-chip technology called Click-A+Chip is designed for facile and rapid digital detection of azido-nor-leucine (ANL)-labeled proteomes present in minute amount of sample.