We report a photonic approach for selective inactivation of viruses with a near-infrared subpicosecond laser. We demonstrate that this method can selectively inactivate viral particles ranging from nonpathogenic viruses such as the M13 bacteriophage and the tobacco mosaic virus to pathogenic viruses such as the human papillomavirus and the human immunodeficiency virus (HIV). At the same time, s...

The increasing use of intravenous immunoglobulin-G preparations (IVIg) calls for evaluation of the requirements for quality and freedom from infection. The WHO Requirements dating from 1982 have been surpassed by the majority of IVIg preparations. Three methods are used for ensuring safety from infection: the restrictive choice of donor, the precise introductory screening of every individual bl...

Interleukin-8 (IL-8) is angiogeneic chemokine that plays a potential role in both development and progression of many human malignancies including nasopharyngeal carcinoma (NPC). Epstein- Barr virus (EBV) is recognized to be an important etiologic agent of NPC as the viral gene products are frequently detected in NPC tissue along with the elevation of antibody titre to the viral protein (VCA-p1...

The carcinogenic potential of chlorine disinfection by-products and recent changes in water quality regulations have led to a greater emphasis on alternative disinfection mechanisms. In this study, the efficacy of bench-scale and pilot-scale titanium dioxide (TiO(2)) photocatalytic disinfection was explored using four bacteriophages (MS2, PRD1, phi-X174, and fr). The optimized bench-scale exper...

Background and Aims: Genotyping assay has been accepted as a guidance in the therapeutic management of Human Immunodeficiency virus 1 (HIV-1). But, it is not commonly used in our country due to its high running cost. The aim of this study is evaluate an in-house genotyping resistance test (GRT) for HIV-1. Methods: HIV-1 RNA of 20 samples were extracted from plasma and RT Nested- PCR was perform...

Background: Human Papillomaviruses (HPVs) have anestablished role in the development of cervical cancer. However, the presence of underlying conditions such as HIV/AIDS is necessary for this to occur. This studyaimed to evaluate the prevalence of HPV DNA in plasma samples from HIV-positive patients in Tehran, Iran. Methods: Plasma specimens from 95 patients diagnosed with HIV infection from Te...

As an emerging nonthermal technology, cold plasma has been used to inactivate endogenous enzymes that are responsible for enzymatic browning reaction of fruits and vegetables. This study aimed investigate the inactivation effect dielectric barrier discharge (DBD) on horseradish peroxidase (HRP), a typical plant peroxidase. The results showed DBD caused HRP in time-and power-dependent manner. ac...

Twelve batches of commercially available foetal bovine sera were tested for the presence of bovine viral diarrhoea virus (BVDV) and BDVD antibodies. The antibodies were found in three batches coming from two suppliers. Fragments of BVDV genome were present in five of these batches when tested by RT-PCR. All of them were type 1 BVDV according to a direct sequencing of PCR products. However, the ...