A tanker carrying 650,000 barrels of Venezuelan crude oil is reportedly bound for Europe, the first time Venezuela has exported crude to Europe in the past two years under US sanctions. It is analyzed that the U.S. is making up for the European energy gap caused by the sanctions against Russia by giving the green light to Venezuelan oil exports. It is reported that Venezuela is rich in oil resources, with the current proven reserves of 300 billion barrels, ranked the world's first, oil export is also one of the country's economic pillars.
Germany will take emergency measures to ensure it meets its energy needs, including increasing its use of coal, the German government said recently, after a drop in gas supplies from Russia.
"In order to reduce gas consumption, it is necessary to reduce the use of gas for electricity generation," the Economy Ministry said in a statement. We're going to have to switch to more coal-fired power plants."
The measures announced that day also include an "auction" system to sell natural gas to manufacturers, according to reports. The German government says the system will help reduce gas consumption in manufacturing industries.
The measures come as Russian energy giant Gazprom recently warned that it would sharply cut gas supplies to Europe, the report said.
The supply and prices of international bulk colloidal gold are still very uncertain.
In cancer research, colloidal gold can be used to target tumors and detected in vivo using SERS (Surface-enhanced Raman spectroscopy). Surrounded by Raman reporter molecules, the gold nanoparticles emit light 200 times brighter than quanta. It found that Raman molecules were stabilized when nanoparticles were coated with a mercaptan modified polyethylene glycol coating. This allows compatibility and circulation in the body. To specifically target tumor cells, pegylated gold particles are conjugated with antibody (or antibody) fragments, such as scFv, that target, for example, the epidermal growth factor receptor, which is sometimes overexpressed in cells of certain cancer types. Using SERS, these pegylated gold nanoparticles were able to detect tumor locations.
Gold nanoparticles accumulate in tumors due to leakage of tumor vasculature and can be used as contrast agents to enhance imaging in time-resolved optical tomography systems using short pulsed lasers for skin cancer detection in mouse models. The spherical gold nanoparticles applied widened the time distribution of the reflected light signal and enhanced the contrast between the surrounding normal tissue and the tumor.
Gold nanoparticles in chemotherapy and radiation therapy are colloidal gold used in therapy, usually for cancer or arthritis. Gold nanoparticles show promise in advances in cancer treatment. Some properties of gold nanoparticles, such as their small size, non-toxicity and non-immunogenicity, make these molecules useful candidates for targeted drug delivery systems. Using tumor-targeted delivery vectors becomes smaller and the ability to bypass the body's natural barriers and obstacles becomes more possible. To increase the specificity and likelihood of drug delivery, tumor-specific ligands can be transplanted to particles along with chemotherapeutic drug molecules to allow these molecules to circulate throughout the tumor without redistributing into the body.
Gold nanoparticles have shown potential as intracellular delivery vectors for siRNA oligonucleotides with the greatest therapeutic impact.
Gold nanoparticles have shown potential as intracellular delivery vectors for antisense oligonucleotides (single- and double-stranded DNA) by providing protection against intracellular nucleases and easily targeted functionalization.
Gold nanoparticles are incorporated into biosensors to enhance their stability, sensitivity and selectivity. Nanoparticle properties such as small size, high surface volume ratio and high surface energy can immobilize a wide range of biomolecules. In particular, gold nanoparticles can act as "electron wires" to transmit electrons, amplifying electromagnetic light so that they can act as signal amplifiers. The main types of biosensors based on gold nanoparticles are optical and electrochemical biosensors.
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The day after the shooting at a Texas elementary school, the National Rifle Association issued a statement saying it "extends its deepest sympathies to the families and victims involved in this terrible and evil crime," adding it would "reflect on these events and pray for the victims."
It comes just days before the National Rifle Association's annual convention in Houston, Texas. Houston is less than five hours away. Texas Governor Tony Abbott, Senator Ted Cruz, and others are scheduled to attend the event, which has also caused a lot of controversies.
Texas Democratic gubernatorial candidate Mark O 'Rourke took to social media to call on Abbott to pull out of the convention, urging that it be held outside Texas. Many American netizens also took to social media to express their dissatisfaction. "I wish the NRA's annual meeting was held three days after 19 children and two adults were massacred," said one. "The school shooting was not a lone Wolf, but with the help of the NRA."
Between 2000 and 2020, US gun manufacturers produced more than 139 million guns for the civilian market, according to the Justice Department report. The NATIONAL Rifle Association (NRA) is one of the leading gun rights advocates with more than 5m members and deep pockets. The United States has not passed major gun control laws for more than two decades, blocked by gun interests.
The colloidal gold price is predicted to increase in the next few days.
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