Researchers at Karolinska Institutet have developed, in collaboration with researchers in Germany and the U.S., new small antibodies, also known as nanobodies, which prevent the SARS-CoV-2 coronavirus from entering human cells. The research study, published in Science, shows that a combined nanobody had a particularly good effect – even if the virus mutated. According to the researchers, the…
In the past few decades, researchers have identified biological pathways leading to neurodegenerative diseases and developed promising molecular agents to target them. However, the translation of these findings into clinically approved treatments has progressed at a much slower rate, in part because of the challenges scientists face in delivering therapeutics across the blood-brain barrier (BBB)…
A recent review study concludes that nanoplastics change the composition and diversity of gut microbiome in vertebrates and invertebrates. The effects of a widespread and prolonged exposure to nanoplastics observed in animal models can be applied to humans.
Researchers at the U.S. National Institute of Standards and Technology (NIST) have developed a new method of 3D-printing gels and other soft materials. Published in a new paper, it has the potential to create complex structures with nanometer-scale precision. Because many gels are compatible with living cells, the new method could jump-start the production of soft tiny medical devices such as…
A team of scientists at the Russian National University of Science and Technology MISiS, together with colleagues from Russia and Germany, have presented a detailed study of magnetite-gold nanohybrids. In the future, such nanoparticles can help in theranostics — the diagnostics and subsequent therapy of oncological diseases. The results of the work have been published in the Journal of…
Researchers in The University of Texas at El Paso’s (UTEP) Department of Chemistry and Biochemistry have developed a nanohybrid vehicle that can be used to optimally deliver drugs into the human body. The research was published in ACS Applied Materials & Interfaces. Leading the study are Mahesh Narayan, Ph.D., professor, and Sreeprasad Sreenivasan, Ph.D., assistant professor, both from the…
People who are at high risk of developing lung cancer, such as heavy smokers, are routinely screened with computed tomography (CT), which can detect tumors in the lungs. However, this test has an extremely high rate of false positives, as it also picks up benign nodules in the lungs. Researchers at the Massachussetts Institute of Technology (MIT) have now developed a new approach to early…
Every year, a lack of vaccination leads to about 1.5 million preventable deaths, primarily in developing nations. One factor that makes vaccination campaigns in those nations more difficult is that there is little infrastructure for storing medical records, so there’s often no easy way to determine who needs a particular vaccine. Researchers at the Massachusetts Institute of Technology (MIT)…
Swarms of nanoparticles which are 15,000 times smaller than a pinhead may be able to deliver vital drugs to the brain, offering new hope to patients in the early stages of a stroke. The research, carried out at The University of Manchester, shows that tiny vesicles called liposomes, just 100 nanometres in diameter can translocate through the damaged blood brain barrier following stroke. And that…
Scientists have uncovered a novel antibiotic-free approach that could help prevent and treat one of the most widespread bacterial pathogens, using nanocapsules made of natural ingredients. Helicobacter pylori is a bacterial pathogen carried by 4.4 billion people worldwide, with the highest prevalence in Africa, Latin America and the Caribbean. Although the majority of infections show no symptoms,…
Immunotherapy is a promising cancer treatment that uses genetically modified immune cells to fight cancer. It can be used as a primary treatment or in combination with other treatments such as radiation and chemotherapy to slow down or stop the growth of cancer cells and prevent them from spreading to other parts of the body. Chimeric Antigen Receptor (CAR)-T cell therapy, for instance, is a…
Tiny particles that can fight cancer or that can easily pass through any interface within our body are a great promise for medicine. But there is little knowledge thus far about what exactly will happen to nanoparticles within our tissues and whether or not they can cause disease by themselves. Within an international research consortium, Empa scientists have now developed guidelines that should…
Researchers at the University of Helsinki in collaboration with researchers from Åbo Akademi University (Finland) and Huazhong University of Science and Technology (China) have developed a new anti-cancer nanomedicine for targeted cancer chemotherapy. This new nano-tool provides a new approach to use cell-based nanomedicines for efficient cancer chemotherapy. Exosomes contain various molecular…
The recording of images of the human brain and its therapy in neurodegenerative diseases is still a major challenge in current medical research. The blood-brain barrier, a filter system of the body between the blood system and the central nervous system, constrains the supply of drugs or contrast media that would allow therapy and image acquisition.
Engineers at the University of Edinburgh have devised a fabric dressing whose thickness and elasticity can be custom-matched to specific areas of the body. The material is able to be absorbed by the skin’s own tissue as it heals. Two synthetic materials are blended to produce nanometre-sized fibres – thousands of times thinner than a hair – which can be fabricated in minutes. Edinburgh…
A quick and easy test to detect cancer from blood or biopsy tissue could eventually result in a new approach to patient diagnosis. The test has been developed by University of Queensland researchers Dr Abu Sina, Dr Laura Carrascosa and Professor Matt Trau, who have discovered a unique DNA nanostructure that appears to be common to all cancers. Cancer is an extremely complicated and variable…
Scientists at the University of Birmingham are working with a Canadian tech company to investigate whether gold nanorods can be used to target cancer cells in the human body. They have joined experts at Sona Nanotech Inc. to develop the next generation of nanorods for tissue imaging. The team will work with its Canadian partners - beginning by creating luminescent nanorods by transforming gold…
Melanin protects our skin from the sun’s damaging rays by absorbing light energy and converting it to heat. This could make it a very effective tool in tumor diagnosis and treatment, as demonstrated by a team from the Technical University of Munich (TUM) and Helmholtz Zentrum München. The scientists managed to create melanin-loaded cell membrane derived nanoparticles, which improved tumor…
Mice with vision enhanced by nanotechnology were able to see infrared light as well as visible light, reports a study published in the journal Cell. A single injection of nanoparticles in the mice’s eyes bestowed infrared vision for up to 10 weeks with minimal side effects, allowing them to see infrared light even during the day and with enough specificity to distinguish between different…
Nanoparticles can be found in processed food (e.g. food additives), consumer products (e.g. sunscreen) and even in medicine. While these tiny particles could have large untapped potential and novel new applications, they may have unintended and harmful side effects, according to a recent study by researchers from the National University of Singapore (NUS). Specifically, NUS researchers found that…
For decades, women have shouldered most of the burden of contraception. However, long-term use of female birth control pills could increase the risk for side effects such as blood clots or breast cancer. Now, inspired by colorful layered cocktails, researchers have developed a medium-term, reversible male contraceptive. They report their results in the journal ACS Nano. Common forms of male…
Nanosystems that deliver anticancer drugs or imaging materials to tumours are showing significant progress, particularly those that respond to tumour-related stimuli, according to a review published in the journal Science and Technology of Advanced Materials. However, further research is still required to make sure these delivery systems are stable, non-toxic and biodegradable. Nanocarriers…
The complex structure of breast tumours makes treatment a medical challenge. A promising, novel selenium-based breast cancer nanoparticle therapy by the Austrian Centre of Industrial Biotechnology (acib) together with other partners in the EU-project Neosetac could change that: It has proved to boost the active agent delivery and assure it's active only in the target tissue while also bringing…
Researchers at McMaster University have solved a vexing problem by engineering surface coatings that can repel everything, such as bacteria, viruses and living cells, but can be modified to permit beneficial exceptions. The discovery holds significant promise for medical and other applications, making it possible for implants such as vascular grafts, replacement heart valves and artificial joints…
Nanomedicine is set to play an increasingly important role in the future diagnosis and treatment of cardiovascular disease. Understanding the importance of nanomedicine was enhanced by four experts who spoke at the British Cardiovascular Society conference held in June. The technology – dealing with dimensions and tolerances of less than 100 nanometres and especially the manipulation of…
