Conductive copper wire 2 (IMAGE) DOE/Pacific Northwest National Laboratory Caption Keerti Kappagantula and her colleagues developed highly conductive copper wire in bulk, as shown here. Credit (Photo by Andrea Starr | Pacific Northwest National Laboratory) Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.