Researchers Take First Steps to Create Biodegradable Displays for Electronics
October 16, 2015 | University of MissouriEstimated reading time: 2 minutes
Americans, on average, replace their mobile phones every 22 months, junking more than 150 million phones a year in the process. When it comes to recycling and processing all of this electronic waste, the World Health Organization reports that even low exposure to the electronic elements can cause significant health risks. Now, University of Missouri researchers are on the path to creating biodegradable electronics by using organic components in screen displays. The researchers’ advancements could one day help reduce electronic waste in the world’s landfills.
“Current mobile phones and electronics are not biodegradable and create significant waste when they’re disposed,” said Suchismita Guha, professor in the Department of Physics and Astronomy at the MU College of Arts and Science. “This discovery creates the first biodegradable active layer in organic electronics, meaning—in principle—we can eventually achieve full biodegradability.”
Guha, along with graduate student Soma Khanra, collaborated with a team from the Federal University of ABC (UFABC) in Brazil to develop organic structures that could be used to light handheld device screens. Using peptides, or proteins, researchers were able to demonstrate that these tiny structures, when combined with a blue light-emitting polymer, could successfully be used in displays.
“These peptides can self-assemble into beautiful nanostructures or nanotubes, and, for us, the main goal has been to use these nanotubes as templates for other materials,” Guha said. “By combining organic semiconductors with nanomaterials, we were able to create the blue light needed for a display. However, in order to make a workable screen for your mobile phone or other displays, we’ll need to show similar success with red and green light-emitting polymers.”
The scientists also discovered that by using peptide nanostructures they were able to use less of the polymer. Using less to create the same blue light means that the nanocomposites achieve almost 85 percent biodegradability.
“By using peptide nanostructures, which are 100 percent biodegradable, to create the template for the active layer for the polymers, we are able to understand how electronics themselves can be more biodegradable,” Guha said. “This research is the first step and the first demonstration of using such biology to improve electronics.”
The study “Self-Assembled Peptide-Polyfluorene Nanocomposites for Biodegradable Organic Electronics” recently was published as the inside cover article in Advanced Materials Interfaces. The work was supported by the National Science Foundation (Grant IIA-1339011) and CNPq (400239/2014-0). The content is solely the responsibility of the authors and does not necessarily represent the official views of the funding agencies.
Tommi White, assistant research professor of biochemistry, and Thomas Lam, both with the Microscopy Core Research Facility at MU, contributed to the study. Other collaborators include Wendel A. Alves and Thiago Cipriano, professors of supramolecular chemistry at UFABC; Eudes E. Fileti, a professor of physics at the Federal University of São Paulo, Brazil.
Suggested Items
NextFlex Convenes the Hybrid Electronics Community at Binghamton University
05/01/2024 | NextFlexBinghamton University hosted the NextFlex hybrid electronics community on April 18 for a day of expert presentations, breakout sessions on technology and manufacturing topics, and networking.
HQ NextPCB of HQ Electronics Debut on the International Stage for Electronics Manufacture at IPC APEX 2024
05/01/2024 | PRNewswireHQ NextPCB of HQ Electronics, a leading Chinese-based multilayer PCB manufacturer and assembly house showcased its industrial prowess on the international stage for the first time at the IPC APEX Expo 2024.
GPV’s Q1 2024 Interim Financial Report Shows Strong Navigation in Uncertain Times
05/01/2024 | GPVDanish-based GPV recorded an expected drop in sales to DKK 2.3 billion for the first quarter of 2024. The decline also affected the operating profit, which was DKK 155 million compared to DKK 179 million in the same quarter last year, although the EBITDA margin was maintained. In general, demand has been softer in 2024, but GPV continues to invest for the long-term and expects the trend to turn in the second half of 2024.
All-Inclusive: PRIDE Industries Helps Employees With Disabilities to Succeed
05/01/2024 | Sandy Gentry, IPCPRIDE Industries is the leading employer of people with disabilities and those with other barriers to employment in the United States, including veterans and former foster youth. The company offers job training, placement, on-the-job coaching, and skills development for independent living. It has held IPC membership since 2000. Read more about this unique business and its connection to the electronics manufacturing industry.
TTM’s High Tech Expansion and Industry Innovation
04/30/2024 | Marcy LaRont, PCB007 MagazineTom Edman has been the CEO of TTM Technologies since 2014 and has an extensive background in electronics and manufacturing. TTM is a leading global manufacturer of technology solutions, including mission systems, RF component and RF microwave microelectronics assemblies, and quick turn and advanced technology printed circuit boards.