We studied the protective effects of low power He-Ne laser irradiation on erythrocytes against the damage caused by experimental artificial heart-lung machines. The erythrocyte suspension in a closed circuit was perfused with a roller pump. One of two circuits was used for laser treatment and the other for control. The laser group demonstrated significantly higher erythrocyte deformability and ...

OBJECTIVE The present study was conducted to investigate the effects of helium-neon (He-Ne) laser irradiation on the proliferation, migration, and differentiation of cultured human epidermal stem cells (ESCs). BACKGROUND DATA A He-Ne laser with a wavelength of 632.8 nm is known to have photobiological effects, and is widely used for accelerating wound healing; however, the cellular mechanisms...

Recently the biostimulatory role of physical methods have been observed in major agricultural crop plants, He-Ne laser is one of the most significant biophysical method for enhancing not only seed germination but also plant growth and development. Seeds of wheat cultivars from Kazakhstan (cultivars; aksay, kazakhstanskaya-10 and eretrospermum-350) and from Egypt (cultivar; sakha-168) were expos...

We propose a new x-ray laser mechanism that uses radiation from the strongest 3d ? 2p Ne-like resonance line in an optically thick plasma to radiatively drive population from the Ne-like ground state to the 3d state, which then lases to two 3p states. Collisional mixing of the 3p states with nearby 3s and 3d states depopulates the lower laser states. Modeling is presented for this mechanism in ...

We have investigated laser induced breakdown in Ar O2 and Ne O2 gas mixtures with different O2 compositions to study possible energy transfer between excited atomic and ionic species (Ne, O, Ar, Ne, Ar, O) in these gas mixtures. Laser pulses of 5 ns duration with a repetition rate of 10 Hz from a frequency doubled Nd: YAG (λ = 532nm) delivering up to 75 mJ energy per pulse were used to create s...

The laser beam profiles captured by CCD camera processed and analyzed by using 2Dgraphic and displayed on the monitor. The analysis of the He-Ne profiles and laser diode profiles are presented. The results showed that the He-Ne laser emits a pure Gaussian beam, whereas the diode laser emits an elliptical beam shape. The laser beam profile analysis developed to study the intensity distribution, ...

The aim of this study was to investigate the pro-apoptotic mechanism of C-phycocyanin (C-PC)-mediated photodynamic therapy (PDT) in a murine tumor model and cultured MCF-7 cells. The mice were divided into four groups: control, He-Ne laser radiation, C-PC treatment, and C-PC treatment + He-Ne laser radiation. The effects of C-PC and/or laser on immune organs, immunocyte proliferation, tumor gen...

Submandibular gland of the rat during the first week of postnatal development was used for the study of the ultrastructural changes after the He-Ne laser radiation. In the experimental group we observed an increase of the dark cells with greater quantity of the granular endoplasmic reticulum and an increased number of specific secretory granules. These changes show positive biostimulative effec...