A bar-code system (see figure) has been assembled for a microbiological laboratory that must examine a large number of samples. The system includes a commercial bar-code reader, computer hardware and software components, plus custom-designed database software. The software generates a user-friendly, menu-driven interface.
Traditionally, microbiological samples have been labeled by hand, and recording of results of microbiological assays has entailed handwriting of bacterial colony counts in notebooks. This traditional approach is both time-consuming and susceptible to human error, especially when large numbers of samples are involved. By automating the routine aspects of tracking microbiological samples, recording data, and documentation of samples and results, the bar-code system saves time and greatly reduces the incidence of errors.
The bar-code system prints unique bar-code labels that can be easily affixed to test tubes and Petri dishes. During sampling, a technician or microbiologist affixes the labels and uses a personal digital assistant (PDA) with a built-in bar-code scanner to scan the bar codes and record notes. After sampling, the data acquired by the bar-code scanner are downloaded to the bar-code-system database, and then a microbiologist assays the samples.
To record assay results, the microbiologist scans the barcode label on each test tube or Petri dish and records the data specific to that sample container on an interactive computer display in a location reserved for those specific data. Inasmuch as the database software is designed to display only the record that corresponds to a given bar code, the possibility of accidentally recording data in the wrong place is eliminated (except, of course, for rare instances of computer error or errors in re-affixation of labels that have fallen off). In addition, because the microbiologist no longer needs to painstakingly find the correct place to enter data for each assay plate, the barcode system accelerates the process of reading plates and recording data.
The bar-code system greatly simplifies the documentation of the sampling process. During sampling, the note-taking capability of the PDA is complemented by the use of a digital camera: The sampling technician or microbiologist takes a picture of each sample and records the picture number (as assigned by the digital camera) in the PDA. Once the data and pictures are downloaded to the database, only a few mouse clicks are necessary to generate a two-column report that displays the pictures in one column and lists the corresponding samples and pertinent information in the other column. In addition, the bar-code system automatically generates a report of assay results. The data in the report can be exported to a spreadsheet for analysis.
This work was done by Jennifer Law and Larry Kirschner of Caltech for NASA's Jet Propulsion Laboratory. For more information, download the Technical Support Package (free white paper) at www.techbriefs.com/tsp under the Electronics/Computers category. NPO-30815
This Brief includes a Technical Support Package (TSP).
Bar-Code System for a Microbiological Laboratory
(reference NPO-30815) is currently available for download from the TSP library.
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Overview
The document is a Technical Support Package from NASA's Jet Propulsion Laboratory (JPL) detailing a Barcode System designed for use in microbiological laboratories. This system, identified by NTR Number 30815, focuses on the tracking of microbiological samples, data collection, and documentation processes. It is part of NASA's Commercial Technology Program, which aims to disseminate aerospace-related technological advancements that have broader applications in various fields.
The Barcode System is intended to enhance the efficiency and accuracy of managing microbiological samples, which is crucial for research and development in both aerospace and other scientific domains. By implementing a barcode system, laboratories can streamline their operations, reduce the potential for human error, and improve the overall quality of data management. This innovation is particularly relevant in environments where precise tracking and documentation of samples are essential for compliance and research integrity.
The document emphasizes that the information provided is proprietary to Caltech/JPL and is subject to U.S. export control regulations. Users are advised to comply with all applicable regulations when utilizing the information contained within the package. It also includes a disclaimer stating that neither the U.S. Government nor any representatives assume liability for the use of the information, nor do they guarantee that such use will be free from privately owned rights.
For further inquiries or assistance regarding the technology, the document provides contact information for the Innovative Technology Assets Management team at JPL, including a mailing address, telephone number, and email. This indicates that additional resources and support are available for those interested in exploring the technology further or seeking collaboration opportunities.
Overall, the Technical Support Package serves as a comprehensive overview of the Barcode System for microbiological laboratories, highlighting its potential benefits, the context of its development, and the avenues for further engagement with NASA's innovative technologies.
