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Polymers are widely used as insulators in electronic devices. Low dielectric constant polymers are desirable since this lowers the potential for unintentional crosstalk and inductive coupling betwe...

We demonstrate the development of organic semiconductor and passive material formulations optimized for photolithographic integration using existing photo-resist materials and technology. These materials can be coated and patterned to produce organic thin-film transistors suitable for integration into mass production processes with charge carrier mobility of greater than 2 cm2/Vs.

Dental caries is a multifactorial disease and the quality of oral hygiene has high influence on development of dental caries. Knowing that dental caries is a dynamic and reversible process led to the development of new technologies that can detect caries at its earliest stages (before the formation of the cavity), for its prompt treatment and prevention. 70 years of fluoride usage for prevention dental caries showed their reliability and ability to participate in the remineralization of hard tooth tissues. At the same time efficiency of fluoride is reduced under acidic conditions of dental plaque (in case of a poor oral hygiene). Daily oral hygiene with usage of a paste with 1.5% arginine, 1450 ppm of fluoride and calcium bicarbonate will help to stop the development of dental caries and reduce the risk of the new carious cavities appearance even in conditions of low level of oral hygiene.

We demonstrate the co-development of organic semiconductors, passive materials and formulations with process optimization to enable the manufacture of high performance Organic Thin Film Transistor (OTFT) arrays suitable for mass production of printable display backplanes. These materials can be printed or coated to fabricate top and bottom gate OTFT's with charge carrier mobility greater than amorphous silicon.

A substantial body of evidence has confirmed human papillomavirus (HPV) infection as an etiologic agent in human cervical cancer. To evaluate the association between HPV and cervical cancer in Chinese women, we examined tumor specimens from women who lived in Shanghai, People's Republic of China. Biopsies from 40 women, diagnosed with either squamous-cell carcinoma (n = 35) or adenocarcinoma (n = 5) were tested for HPV DNA by PCR. The HPV types present in tumors were determined either by hybridization of PCR products with HPV type-specific probes or by PCR-based sequencing. A total of 35 of the 40 cervical cancer specimens (87.5%) contained HPV DNA. The following distribution and types were detected: 7.5% HPV 16, 10% HPV 18, 20% HPVs 16 and 18, 15% HPV 52, 15% HPV 58, 12.5% HPVs 52 and 58 and 7.5% unclassified HPVs. In this population of Chinese women with cervical cancer, HPV 52 and 58 were as prevalent as the "high-risk" (for cervical cancer) viruses HPVs 16 and 18.