Medicine - Page 2

New project will focus on graphene 'lab on a chip' medical diagnostic technology for rapid detection of infections

Researchers at the Liverpool School of Tropical Medicine (LSTM) will collaborate with ProMake, a material science and diagnostic company, as part of Innovate UK's Accelerated Knowledge Transfer Scheme. The new project will investigate how graphene technology could be utilized to rapidly detect infection and act as the basis for new medical diagnostics.

ProMake has developed a novel device prototype, the 'BioPod', a hand-held point-of-care diagnostic containing the graphene lab-on-a-chip (LOC) electrode. The LOC uses functionalized graphene, a super-strong and thin material laced with specific receptors, to detect a wide range of pathogens. The aim is to use the BioPod in the same way as lateral flow tests (LFTs), to test for COVID-19 and other pathogens. However, unlike LFTs, which provide quick results but with less accuracy than tests processed in the lab, the BioPod's advanced technology has the potential to be more accurate and easier to interpret.

Read the full story Posted: Mar 05,2024

First-in-human testing of graphene's safety shows encouraging results

Researchers at the University of Manchester, University of Edinburgh, ICN2, RIVM and the University of the Highlands and Islands have tested the safety and health implications of graphene, revealing that it has the potential to be used without risk to human health.

The study has shown that the use of graphene without harm to the human body is possible, through the carefully controlled inhalation of graphene, shown to have no short-term adverse effects on cardiovascular function.

Read the full story Posted: Feb 16,2024

Development of graphene-based sensor tattoos for sweat analysis gets funding boost

University of Massachusetts Amherst researchers have received an award to develop a graphene-based sweat monitor tattoos that can be applied to the skin just like a temporary tattoo and assess the molecules present, such as cortisol. The tattoos will aim to give users better insight into their health and serve as a tool for researchers to discover new early indications of diseases.

“There are a lot of vital biomolecules that are present in sweat that we need to measure to really understand overall human performance and correlation to different diseases,” says research lead and assistant professor of biomedical engineering, Dmitry Kireev.

Read the full story Posted: Jan 31,2024

Researchers develop self-assembling graphene sensors for modular wearable electronics

Researchers at Peking University, University of Science and Technology Beijing and Peking University Third Hospital have reported magnetically self-assembling graphene sensors. 

While wearable sensors can provide continuous, personalized health tracking beyond clinical visits, most devices today still have fixed designs targeting single applications, lacking versatility to address users' changing needs. The team's recent work could address this issue and enable modular, reconfigurable wearable electronics customized to individuals. 

Read the full story Posted: Jan 29,2024

Researchers use graphene electrodes to design neural implant capable of reading brain activity

University of California San Diego researchers have developed a neural implant capable of reading brain activity that could advance research into creating a brain-computer interface (BCI) without being overly invasive.

The new implant consists of a thin transparent strip made of a polymer with several graphene electrodes 20 micrometers in diameter, each of which is connected to a circuit board via tiny wires. The strip sits on the surface of the brain allowing it to detect neural activity consisting of electrical activity and calcium activity. Unlike previous methods, the chip allows scientists to conduct longer experiments without the need to have a subject fixed in place under a microscope.

Read the full story Posted: Jan 25,2024

Researchers design graphene biosensor that uses sound waves for chemical fingerprinting of ultrathin biolayers

Universidad Politécnica de Madrid researchers have reported the development of an electrically tunable graphene-based biosensor that leverages sound waves to provide unprecedented infrared sensitivity and specificity at the single layer limit. By precisely matching the tunable graphene plasmon frequency to target molecular vibrations, even faint spectral fingerprints emerge clearly.

This acoustically activated approach enables precise in situ study of angstrom-scale films, unlocking new infrared applications across chemistry, biology and medicine.

Read the full story Posted: Jan 23,2024

Researchers develop novel graphene-based implantable neurotechnology

A new study, led by the Catalan Institute of Nanoscience and Nanotechnology (ICN2) along with the Universitat Autònoma de Barcelona (UAB) and other international partners like the University of Manchester (under the European Graphene Flagship project), presents EGNITE (Engineered Graphene for Neural Interfaces) - a novel class of flexible, high-resolution, high-precision graphene-based implantable neurotechnology with the potential for a transformative impact in neuroscience and medical applications. 

This work aims to deliver an innovative technology to the growing field of neuroelectronics and brain-computer interfaces. EGNITE builds on the experience of its inventors in fabrication and medical translation of carbon nanomaterials. This innovative technology based on nanoporous graphene integrates fabrication processes standard in the semiconductor industry to assemble graphene microelectrodes of a mere 25 µm in diameter. The graphene microelectrodes exhibit low impedance and high charge injection, essential attributes for flexible and efficient neural interfaces.

Read the full story Posted: Jan 15,2024

Researchers design graphene quantum dots for cancer treatment

Researchers at China's Hunan University, Chinese Academy of Sciences and the University of Washington in the U.S have developed a metal-free nanozyme based on graphene quantum dots (GQDs) for highly efficient tumor chemodynamic therapy (CDT).

GQDs have potential as a cost-effective means of addressing the toxicity concerns associated with metal-based nanozymes in tumor CDT. However, the limited catalytic activity of GQDs has posed significant challenges for their clinical application, particularly under challenging catalytic conditions. "The obtained GQDs, which are made from red blood cell membranes, are highly effective in treating tumors with few side effects," said Liu Hongji, a member of the research team. "One of the advantages is that they are metal-free. In addition, they function as excellent peroxidase-like biocatalysts."

Read the full story Posted: Jan 10,2024

HydroGraph’s Graphene selected by Hawkeye Bio for use in its early-stage lung cancer detection biosensor

HydroGraph Clean Power has announced that its flagship graphene product, FGA-1, has been successfully trialed in Hawkeye Bio’s biomedical sensor aimed at the early detection of lung cancer. Hawkeye Bio is a clinical stage medical technology company focused on the early detection of cancer.

HydroGraph’s graphene was selected by Hawkeye Bio based on the purity and consistency of its graphene. Headquartered in Toronto, HydroGraph’s manufacturing facility is located in Manhattan, Kan.

Read the full story Posted: Jan 03,2024

Zentek launches Triera Biosciences

Canada-based Zentek has announced the launch of Triera Biosciences as its wholly owned subsidiary for its aptamer platform technology. This subsidiary now owns the exclusive, global licensing rights for all aptamer-based technology from the collaboration with McMaster University.

The Company is repotedly taking this action following the strong, consistent pre-clinical results of its universal aptamer as a treatment against the SARS-CoV-2 virus including the latest Omicron XBB 1.5 variant and will continue to build upon its previous work on a rapid detection platform within the new subsidiary. Triera will offer a pure play in the biotech space when operated as an independent business and be more accessible to potential pharmaceutical partners, funders, and other interested parties.

Read the full story Posted: Dec 15,2023