The solar cell was coming into form. Building on the existing principles of the photovoltaic effect, a similar phenomenon — photoelectric effect — was observed in 1887 by German physicist Heinrich ...

Stem cell biotechnology is a field of biotechnology that develops tools and therapeutics through modification and engineering of stem cells. Stem cell biotechnology is important in regenerative ...

Stem cells are cells that have the capacity to self-renew by dividing and to develop into more mature, specialised cells. Stem cells can be unipotent, multipotent, pluripotent or totipotent ...

The perovskite-organic tandem solar cell can achieve a photoelectric conversion efficiency of 26.4 percent, the highest efficiency for such solar cells to date, according to Li Yongfang ...

“To realize more complex and functional modulation of incident light, we used bilayer structures composed of a liquid crystal cell and a liquid crystal polymer.” In the cell, the liquid crystal layer ...

But while there is still no quantum theory of gravity, the challenge of detecting its signatures now looks a little more manageable thanks to a proposed experiment that takes inspiration from the ...

Certain cancers can cause high white blood cell (WBCs) counts, or in some cases, low levels. WBCs, also called leukocytes, are immune system cells that fight pathogens in your body. A high white blood ...

What is sickle cell disease? Sickle cell disease (SCD) is an inherited blood disorder. That means it is passed down from a parent’s genes. It causes the body to make abnormal hemoglobin. Hemoglobin is ...