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Gold nanoparticles (AuNPs) possess unique properties for various biological and intraocular applications. In retina research, AuNPs hold promise for therapeutic intervention, drug delivery, and photoreceptor replacement, but their potential toxicity is an area of concern. This study assesses the toxicity of AuNPs formulations suitable for photoreceptor replacement in retinal cells and tissue. Three different gold formulations were studied. One in the form of a single gold nanoparticle with citrate groups (AuNP), an AuNP coated with linkers and superhydrophobic layers (NC), and the NCs mounted on a BaTiO3 nanocore with a high dielectric constant (BTNC). Proliferation assays (PA) and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assays with different concentrations of AuNPs, NC, and BTNC were conducted on human retinal endothelial cell (hREC) cultures. Following intravitreal injection (IVI) of nanoparticles in wild type (WT) mice, function was evaluated with electroretinography (ERG), structural changes through optical coherence tomography (OCT), and vascular change with Isolectin B4 (IB4) postmortem staining. No significant cell death or decreased growth were observed at concentrations below 100ppm in vitro (p-value > 0.05). Mice were examined before and after IVI with nanoparticles, and no major changes were seen. These findings indicate that AuNPs can cause a transient change in the electrophysiology of normal tissue and may impose structural changes at higher concentrations.

[...]Egypt will once again retain its historical position as a positive anchor for the Arab world.

In theory the mechanics are fairly simple, even if the political fortitude and financial wherewithal are missing. * Import water from the Sea of Cortez to the Salton Sea. * Set up two desalinization plants at the north end of the Salton Sea to generate fresh water. * Dispose of the waste brine by pumping it into the Salton Fault where it will be used to assist in steam generation.

Ignoring Obama's advice Morsi autocratically and arrogantly refused to talk to anyone other than his masters in the Muslim Brotherhood headquarters. Because of Obama's naivete and indecisiveness the Egyptian people have all but abandoned respect for America.

Most of us have forgotten those passages in our musty old high school history books that were to have taught us the lethal lessons of religious strife, including our own Christian Reformation. Because it happened so long ago, approximately the century from 1550 to 1650, and so far away -- throughout all of Western Europe -- that we consider ourselves enlightened and free of the shackles that once bound all of us to the religious dogmas of our ancestors.

Special to The Desert Sun Seldom is there a finer piece of verbal legerdemain of bait-and-switch than the opinion posted by Assemblyman V. Manuel Perez (\"How can renewable energy help save the Salton Sea,\" Desert Sun, June 16) when Perez ties the need for new geothermal generation into the effort to \"also help to save the Salton Sea.\"

[...]the squeals of indignity posted in the Valley Voice section on May 26 by the general managers of CVWD and DWA, Jim Barrett and Dave Luker, as they all but accused the Aqua Caliente of theft and blackmail.

For decades now, politicians have bandied around the word \"restoration\" with a criminal abandon to give false promise. * There is the recognition that while government money -- state, local and federal -- may be squeezed from various sources for mitigation, money in the form of billions for restoration would be required from both commercial enterprise and philanthropy.

In partnership with the electrical generating plant is a mineral extraction company that harvests lithium from the dense underground brine. [...]dumping the refuse brine from the desalinization process into the underground fault solves the refuse problem while permitting a timeless source of raw material for the electrical plant and the mineral extraction company.

To illustrate the social divide, The Desert Sun recently published a column by Bill Borden titled, \"Medical Marijuana just a scam for opportunistic stoners.\"