Lysosome mediates toxicological effects of polyethyleneimine-based cationic carbon dots

Carbon Tetrachloride Toxicological Overview

 Acute inhalation or ingestion may cause nausea, vomiting, headache, dizziness, abdominal pain, diarrhoea, and difficulty breathing  Acute inhalation or ingestion can also cause liver and kidney damage which in severe cases may lead to coma and death  Dermal exposure may cause irritation and contact with undiluted carbon tetrachloride may cause a burning sensation and redness  Ocular exposu...

Natural carbon-based dots from humic substances

For the first time, abundant natural carbon-based dots were found and studied in humic substances (HS). Four soluble HS including three humic acids (HA) from different sources and one fulvic acids (FA) were synthetically studied. Investigation results indicate that all the four HS contain large quantities of Carbon-based dots. Carbon-based dots are mainly small-sized graphene oxide nano-sheets ...

Toxicological Profile for Carbon Tetrachloride

Spin-orbit effects in carbon-nanotube double quantum dots

S. Weiss,1 E. I. Rashba,2,3,4 F. Kuemmeth,2 H. O. H. Churchill,2 and K. Flensberg1 1Niels Bohr Institute and Nano-Science Center, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark 2Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA 3Center for Nanoscale Systems, Harvard University, Cambridge, Massachusetts 02138, USA 4Department of Physics, Lou...

Reversible Photoswitching of Carbon Dots

We present a method of reversible photoswitching in carbon nanodots with red emission. A mechanism of electron transfer is proposed. The cationic dark state, formed by the exposure of red light, is revived back to the bright state with the very short exposure of blue light. Additionally, the natural on-off state of carbon dot fluorescence was tuned using an electron acceptor molecule. Our obser...