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TikTok is being overlooked as a tool for COVID-19 guidance

Research reveals regrettably little health information in coronavirus-tagged videos.

What the rest of the world can learn from South Korea’s COVID-19 response

CU Denver researcher investigates how South Korean policy enabled the country to flatten the curve without economic disaster.

The six strains of SARS-CoV-2

An extensive study carried out on SARS-CoV-2 sequencing reveals six strains of the virus.

Study: COVID-19 pandemic has negatively influenced subjective well-being

The mental health toll of the COVID-19 pandemic.

Two coronavirus vaccines show immune response in human trials

Scientists express cautious optimism about two potential COVID-19 vaccine candidates from the UK and China.

Research highlights

This month in pictures

There is art in science and science in art — here we’ve put together some of the most inspiring science images published in our journals this month.

Flowing colors

These rainbow-colored beads are an actual multi-stack of temporary color‐coded photos of floating microparticles, which were used to estimate the trajectories and velocity profiles of the flow of liquid in biomimetic device. The device, made by Vahid Hosseini, Viola Vogel, and co‐workers, is a pulsatile flow system to mimic the disease‐like extracellular matrix of vascular wall tissues and to gain insights into changes upon exposure to drugs taken to treat atherosclerosis or aneurysm.

Capturing tumor cell migration

Claudia Fischbach of Cornell University and co-workers create stunning images, such as the one here, using a new collagen-embedded multicellular spheroid platform. The study explores the connections between tissue microenvironment and obesity, which may have significant implications for breast cancer malignancy in obese patients.

Bridging the trenches

Jesper Nygård and Thomas Sand Jespersen from the University of Copenhagen and their co-workers have created a crystal growth platform for in situ growth of semiconductor/superconductor hybrids. The technique eliminates the need for etching, enabling full freedom in the choice of hybrid constituents.

Leafy veins

Vascular networks are central components of organ‐on‐a‐chip systems. Inspired by ubiquitous biological systems, such as leaf venation and circulatory systems, Jiankang He from Xi’an Jiaotong University, Xin Zhao from The Hong Kong Polytechnic University, and their co-workers devised a fabrication strategy to develop a biomimetic vascular system integrated with freely designed chambers, which function as niches for chamber‐specific vascularized organs.

Holographic tweezers and microspheres

Jonathan Hopkins of the University of California, Los Angeles and co-workers report a scalable approach to assembling 3D arrays of microgranular crystals using holographic optical tweezers.

Confined electrons

This is not the new PS5 controller, although if it were, it would need some nanoscale hands to manipulate it. A new technique allows these beautiful shapes to be made using graphenes hydrogen atoms to confine electrons.

Cell imaging

Xiaohu Gao from the University of Washington and co-workers combine two powerful technologies; quantum dots and a technique for amplifying the fluorescence given off by imaging molecules, called signal amplification by exchange reaction (SABER).


The planks in this “woodpile” design are a mere 30 nanometers apart from each other. Frederik Mayer and Martin Wegener of Karlsruhe Institute of Technology, and their co-workers built this tiny object using a new material for 3D printing.

Cellular grids

This SEM image comes courtesy of Roey Elnathan and Nicolas Voelcker at Monash University, and their co-workers, demonstrating the use of vertical silicon nanotubes (SiNTs) to manipulate cell growth and gene editing through intracellular delivery of small molecules. The large scale bar represents 10 µm, whilst the scale bar in the inset represents just 2 µm.

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