A schematic diagram of the “writing” and “reading” process. ASCII information is converted to a binary bit string which is then encoded into printable patterns and printed with an inkjet printer. The presence or absence of dye molecules at a location represents a byte of data. The information is written on an epoxy substrate which contains free amino groups. Printing of the dyes leads to an amide bond formation between the substrate and the dye and leads to covalent immobilization of the dye onto the substrate at a specific location. Imaging of the printed substrate using a multichannel fluorescence detector represents the “reading” of the written information. The multichannel fluorescence detector can, simultaneously and independently, detect the presence or absence of the dye molecules at a specific location. One very important feature of our approach is that the registration of the dyes with respect to each other is not important for decoding the stored information.
As the world’s data storage needs grow, new strategies for preserving information over long periods with reduced energy consumption are needed. Now, researchers reporting in ACS Central Science have developed a data storage approach based on mixtures of fluorescent dyes, which are deposited onto an epoxy surface in tiny spots with an inkjet printer. The mixture of dyes at each spot encodes binary information that is read with a fluorescent microscope.
Current devices for data storage, such as optical media, magnetic media and flash memory, typically last less than 20 years, and they require substantial energy to maintain stored information. Scientists have explored using different molecules, such as DNA or other polymers, to store information at high density and without power, for thousands of years or longer. But these approaches are limited by factors such as high relative cost and slow read/write speeds. George Whitesides, Amit Nagarkar and colleagues wanted to develop a molecular strategy that stores information with high density, fast read/write speeds and acceptable cost.
The researchers chose seven commercially available fluorescent dye molecules that emit light at different wavelengths. They used the dyes as bits for American Standard Code for Information Interchange (ACSII) characters, where each bit is a “0” or “1,” depending on whether a particular dye is absent or present, respectively. A sequence of 0s and 1s was used to encode the first section of a seminal research paper by Michael Faraday, the famous scientist. The team used an inkjet printer to place the dye mixtures in tiny spots on an epoxy surface, where they became covalently bound. Then, they used a fluorescence microscope to read the emission spectra of dye molecules at each spot and decode the message. The fluorescent data could be read 1,000 times without a significant loss in intensity. The researchers also demonstrated the technique’s ability to write and read an image of Faraday. The strategy has a read rate of 469 bits/s, which is the fastest reported for any molecular information storage method, the researchers say.
Original Article: Storing data as mixtures of fluorescent dyes
More from: American Chemical Society
The Latest Updates from Bing News & Google News
Go deeper with Bing News on:
Fluorescent dye data storage
- Scientists encode 'Wizard of Oz' in a vanishingly small plasticon July 22, 2022 at 5:00 pm
"When it comes to information storage, we're looking for ways to store data in the smallest amount of space and in a format that is durable and readable," said Eric Anslyn, a UT Austin chemistry ...
- Can Microrobots Deliver Chemotherapy Directly to a Tumor?on July 20, 2022 at 8:00 pm
Recent advances in microrobotics have demonstrated promising data for targeted drug delivery ... The researchers also added a photothermal agent called indocyanine green (ICG), a fluorescent dye with ...
- Research Antibodies Market with Analysis of Growing Technology Trends, Industry Research, Future Growth and Size, Projection - MarketWatchon July 20, 2022 at 2:47 am
Thermo Fisher Scientific Inc. provides fluorescent dye-conjugated secondary antibodies ... have the advantages of stability, favorable storage technology, high affinity and high applicability ...
- The 70-Gene Signature (Mammaprint) as a Guide for the Management of Early Stage Breast Cancer: A Technology Assessmenton July 15, 2022 at 5:00 pm
RNA is isolated from a test sample (tumor, white blood cells, normal tissue), amplified, and labeled with a fluorescent dye. Then it is ... Complex tests combining data from multiple laboratory ...
- Using DNA Microarrays to Study Host-Microbe Interactionson July 15, 2022 at 5:00 pm
For both techniques, use of fluorescent labeling enhances sensitivity ... provides basic microarray data storage and retrieval capabilities to the average laboratory. The study of microbial ...
Go deeper with Google Headlines on:
Fluorescent dye data storage
Go deeper with Bing News on:
Long-term data storage
- MaxLinear Unveils Panther III - High-Performing DPU Storage Acceleratoron August 1, 2022 at 7:21 am
The scalability and flexibility of the DPU architecture allow the Panther III series to deliver the storage solution with 12:1 data reduction, a full suite of security, and CAPEX ...
- Fluence Energy: An Energy Storage Leader On Saleon July 29, 2022 at 10:50 am
Energy storage will be critical for global decarbonization efforts. U.S., EU, and their allied governments introduce policies and bills that favor the Energy Storage industry. Fluence is an ...
- Global Self Storage: Expect Attractive Performance To Continueon July 28, 2022 at 12:29 pm
Global Self Storage has done incredibly well in recent months, with revenue and cash flows continuing to grow. See why I retain my buy rating on SELF stock.
- Sustainability goals drive data-center purchaseson July 25, 2022 at 7:11 am
Liquid cooling, high efficiency equipment, and AI-enabled analytics are among the technologies driving more sustainable data-center operations.
- The Evolution of HPC Storage: More Choices Yields More Decisionson July 21, 2022 at 6:24 am
SPONSORED CONTENT] The past few years have brought many changes into the HPC storage world, both with technology like non-volatile memory express (NVMe) or persistent memory, and the growth of ...