The paper presents the development of a “proof-of-principle” hands-free and self-contained diagnostic platform for detection of human papillomavirus (HPV) E6/E7 mRNA in clinical specimens. The automated platform performs chip-based sample preconcentration, nucleic acid extraction, amplification, and real-time fluorescent detection with minimal user interfacing. It consists of two modular prototypes, one for sample preparation and one for amplification and detection; however, a common interface is available to facilitate later integration into one single module. Nucleic acid extracts (n = 28) from cervical cytology specimens extracted on the sample preparation chip were tested using the PreTect HPV-Proofer and achieved an overall detection rate for HPV across all dilutions of 50%–85.7%. A subset of 6 clinical samples extracted on the sample preparation chip module was chosen for complete validation on the NASBA chip module. For 4 of the samples, a 100% amplification for HPV 16 or 33 was obtained at the 1 : 10 dilution for microfluidic channels that filled correctly. The modules of a “sample-in, answer-out” diagnostic platform have been demonstrated from clinical sample input through sample preparation, amplification and final detection.
Coordination of information and resources is central to efficient ward management. Tools to aid coordination include standardized procedures and paper lists and, more recently, electronic tools such as whiteboards and mobile solutions. This study reports on the experiences and effects of designing and implementing collaboration technology, and how the use of light-weight technology has enabled redesign of traditional work processes. The process followed the principles for user-centered development and is evaluated through observations and informal interviews of users and stakeholders. In addition to the expected changes in work processes, we found that short redesign cycles with heavy user involvement afforded by this technology enabled implementation of new ways of structuring and combining information that were not foreseen. This turned the collaboration technology into a tool that also guided prioritization between tasks and contributed to the effects seen in use of resources, user satisfaction, and quality of treatment.
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