Category archives: Science

How to measure the viscosity of the liquid inside a living cell using upconverting particles

How to measure the viscosity of the liquid inside a living cell using upconverting particles

Condensed matterNanotechnologyPhysics

By DIPC

How would you measure the dynamic viscosity of cytosol, the liquid inside the cells, without destroying the cell? It seems not an easy task. However, a team of researchers that includes Nuno de Sousa (DIPC & IFIMAC), has just provided a way of achieving this and other similar feats using upconverting particles. An optical trap […]

A membrane with voltage-dependent conductances increases the energy efficiency of fly photoreceptors

A membrane with voltage-dependent conductances increases the energy efficiency of fly photoreceptors

BiologyNeurobiology

By Francisco J Hernández

The neuronal membrane, like membranes surrounding other cells, is mainly formed by a lipid surface impermeable to ions. It is only through ion channels, small protein pores embedded in the membrane, that ions can cross, allowing electrical current to charge or discharge the neuron. The inclusion of ion channels in a membrane, determines its electrical […]

Plasmons galore for myriad applications

Plasmons galore for myriad applications

ChemistryCondensed matterMaterialsNanotechnologyPhysicsQuantum physics

By DIPC

Worldwide research efforts on plasmons and metamaterials have been growing exponentially for the past ten years. Now, Antonio I. Fernández-Domínguez (IFIMAC), Francisco J. García-Vidal (IFIMAC & DIPC), and Luis Martín-Moreno (ICMA) discuss new directions for the future, such as the use of 2D materials and strong coupling phenomena, which are likely to shape the field […]

Pulsed radiotherapy

Pulsed radiotherapy

MedicinePhysics

By Invited Researcher

Can radiotherapy with laser-produced ionizing radiation be an alternative to conventional radiotherapy? Can we deep our understanding of the basic mechanisms of radiation damage? Can we study the very early biological response of the living matter and use this knowledge to design more efficient radiotherapy treatments? Contrary to popular belief, when tumoral tissue is irradiated […]

How to study magnetic Weyl fermions experimentally

How to study magnetic Weyl fermions experimentally

ChemistryCondensed matterQuantum physicsTheoretical physics

By DIPC

Imagine there exist a material in which an electron could be split into two quasiparticles. These two quasiparticles both would carry electric charge, move in opposite directions but could not move backwards. Furthermore these quasiparticles would be massless. And we can give them a fancy name, Weyl fermions. This seems to be at odds with […]

Melodrama with happy ending for Duchenne Muscular Dystrophy patients

Melodrama with happy ending for Duchenne Muscular Dystrophy patients

BiologyBiomedicineGeneticsMedicinePharmacy

By Sergio Laínez

Patients suffering from rare diseases (defined by the European as those affecting less than 5 in 10000 people) have traditionally been overlooked by pharmaceutical companies. They are usually looking for the next blockbuster drug, so the lack of a large patient pool means they may not generate the revenue needed to justify the R&D financial […]

Quantum dots embedded in graphene nanoribbons

Quantum dots embedded in graphene nanoribbons

ChemistryCondensed matterMaterialsNanotechnology

By DIPC

Graphene nanoribbons (GNRs), are strips of graphene with ultra-thin width (<50 nm). Graphene ribbons were introduced as a theoretical model by Mitsutaka Fujita and coauthors to examine the edge and nanoscale size effect in graphene. GNRs are very interesting structures, partly due to their attractive electronic properties. Those properties vary dramatically with changes in the […]

Why we almost certainly <i>do not</i> live in a simulation ? (&2)

Why we almost certainly do not live in a simulation ? (&2)

Philosophy of science

By Jesús Zamora Bonilla

In the previous entry , I described Nick Bostrom’s argument for the ‘simulation hypothesis’, i.e., the conjecture that we are very, very likely living not in a ‘real’ world, but within some kind of computer simulation, and ended offering some skeptical doubts about its structure by comparing it to Bertrand Russell’s prankish argument about whether […]