Most deaths (80%) from cervical cancer occur in regions lacking adequate screening infrastructures or ready access to them. In contrast, most developed countries now embrace human papillomavirus (HPV) analyses as standalone screening; this transition threatens to further widen the resource gap. We describe the development of a DNA-focused digital microholography platform for point-of-care HPV screening, with automated readouts driven by customized deep-learning algorithms.
View Article and Find Full Text PDFWe report a sensitive and versatile biosensing approach, LUCID (luminescence compact diagnostics), for quantitative molecular and cellular analyses. LUCID uses upconversion nanoparticles (UCNPs) as luminescent reporters in mutually exclusive photoexcitation and read-out sequences implemented on a smartphone. The strategy improves imaging signal-to-noise ratios, eliminating interference from excitation sources and minimizing autofluorescence, and thus enables filterless imaging.
View Article and Find Full Text PDFCervical cancer incidence in the United States is estimated to affect 12,900 women in 2016, with 4,100 deaths. Screening for this cancer with Pap test and adjunct human papillomavirus testing has made cervical cancer a treatable disease. This article reviews screening, treatment recommendations, and prevention for cervical cancer.
View Article and Find Full Text PDFThe widespread distribution of smartphones, with their integrated sensors and communication capabilities, makes them an ideal platform for point-of-care (POC) diagnosis, especially in resource-limited settings. Molecular diagnostics, however, have been difficult to implement in smartphones. We herein report a diffraction-based approach that enables molecular and cellular diagnostics.
View Article and Find Full Text PDFSignificant declines in the incidence and mortality rates of cervical cancer have occurred in the United States since the introduction of the Papanicolaou (Pap) test. Unfortunately, a reduction in the burden of cervical cancer is not equal across all ethnic and racial groups; significant disparities exist. Disparities are reflected not only in mortality and incidence rates, but also in screening rates.
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