Direct Growth of Light-Emitting III-V Nanowires on Flexible Plastic Substrates.

Semiconductor nanowires are routinely grown on high-priced crystalline substrates as it is extremely challenging to grow directly on plastics and flexible substrates due to high-temperature requirements and substrate preparation. At the same time, plastic substrates can offer many advantages such as extremely low price, light weight, mechanical flexibility, shock and thermal resistance, and biocompatibility. We explore the direct growth of high-quality III-V nanowires on flexible plastic substrates by metal-organic vapor phase epitaxy (MOVPE).

InAs-Nanowire-Based Broadband Ultrafast Optical Switch.

Due to their tunable optical properties with various shapes, sizes, and compositions, nanowires (NWs) have been regarded as a class of semiconductor nanostructures with great potential for photodetectors, light-emitting diodes, gas sensors, microcavity lasers, optical modulators, and converters. Indium arsenide (InAs), an attractive III-V semiconductor NW with the advantages of narrow bandgap and large electron mobility, has attracted considerable interest in infrared optoelectronic and photonic devices. Here, we studied the ultrafast carrier dynamics and nonlinear optical responses of InAs NWs ranging from 1.

[The role of preserving therapy of invasive cancer of the urinary bladder].

Cystectomy in the treatment of invasive cancer of the urinary bladder is not the only therapeutic modality in this pathology. In selected patients an alternative exists--transurethral resection of the urinary bladder followed by adjuvant concurrent chemotherapy and radiotherapy. The preserving therapy can be recommended to patients over 60 years of age in the presence of a low-grade solitary tumor of a mobile wall of the urinary bladder respectable with preservation of the organ capacity.

[Chemotherapy of hormone-resistent cancer of the prostate].

A total of 59 patients with hormone-resistent prostatic cancer (HDPC) treated in 1999-2004 entered the trial. Three schemes of first-line chemotherapy were examined for clinical efficacy and toxicity in the above patients. Anticancer combined treatment vinorelbin + cycloplatam was given to 23 patients, mitoxantron + prednisolone--to 23 patients, mitoxantron+cysplatin+prednisolone--to 13 patients.

[Regional metastases of penile cancer: optimal treatment policy].

Emergence of regional penile cancer (PC) metastases reduces late survival of PC patients from 94.4 to 83.9%.