Sentences with word «nanogram»

The interdisciplinary project team is made up of eco - and human toxicologists, physicists, chemists and biologists, and they have just managed to take their first major step forward in achieving their goal: they have developed a method for testing a variety of environmental samples such as river water, animal tissue, or human urine and blood that can detect nanomaterials at a concentration level of nanogram per liter (ppb — parts per billion).

In laboratory tests, just a few tens of nanograms of these compounds per litre can skew sex ratios and decrease fertility in fish.

Progesterone was measured in nanograms per milliliter of plasma (ng / ml).

Phosphane is toxic to human lymphocytes at levels of a few nanograms per kilogram.

PSL containment systems provide high containment to nanograms level for optimum operator and product protection.

And while the scientists needed only nanograms of the material for this study, that number would have to be multiplied dramatically for industrial purposes.

The best measure of your vitamin D status is to look at blood levels of a form known as 25 - hydroxyvitamin D. Blood levels are described either as nanograms per milliliter (ng / mL) or nanomoles per liter (nmol / L), where 0.4 ng / mL = 1 nmol / L.

In Cell Metabolism on August 13, the Harvard scientists who discovered irisin address this contentious issue by showing that human irisin circulates in the blood at nanogram levels and increases during exercise.

As applied to the Initiative, the enhanced sensitivity of the laser ablation measurement approach will be harnessed for measuring stable isotope content of nanogram amounts of RNA samples.

Because this technique is very sensitive, scientists obtain detailed data using nanogram - sized samples.

Ten nanograms pRL - TK vector (Promega) were used as an internal control for normalizing the transfection efficiency.

One nanogram equals 1,000 picograms, and there are 100 ml in a deciliter.

Hormones are measured in like nanograms, which is like one speck of salt in like a swimming pool, right.

That being said, your unit of measure on your total testosterone indicates nanograms per picoliter, which I am assuming should be ng / dl or ng / ml.

As little as 2 nanograms LPS per kilogram body weight will induce fever, and 1 microgram LPS per kilogram of body weight will induce shock.

Maya's B12 levels were tested right up front and found to be in the 600s (meaning 600 + nanograms of B12 per liter of blood).

The lingering effects of marijuana in the bloodstream, often remaining for up to 30 days, have some questioning whether the 5 nanogram limit for testing will prove adequate or accurate, but for lawmakers it's a good place to start.

But Prigg says that pyrethroids are so toxic that «if dipped sheep drip while grazing near streams, that can provide the few nanograms of pesticide per litre of water required to kill freshwater shrimps».

The amount of Test you have in your body is measured in nanograms per deciliter (ng / dL) of blood.

«Some urine samples showed cocaine levels over a million,» measured in nanograms per milliliter, Kosten says.

Just 3 minutes later, still by the side of the road, the result comes back: every millilitre of spit contains 5 nanograms of THC, weed's active ingredient.

«Antiprotons are incredibly expensive and difficult to produce and store on Earth,» and even the world's most powerful atom smashers could produce and trap only nanograms of the stuff each year, Bickford adds.

«A testosterone level test measures the amount of testosterone in the blood and is reported as nanograms per deciliter (ng / dL)» [Healthline].

Normal testosterone levels in men change with age, but an acceptable reading is considered to be between 300 and 1,000 nanograms per deciliter.

The level of precision necessary to meet this standard on an industrial scale for 100 per cent of the corks examined is astounding, especially given that the detection threshold of 0.5 nanograms / litre is the equivalent of one drop of water in 800 Olympic - size swimming pools.

With incredibly high precision, NDtech can detect any cork with more than 0.5 nanograms of TCA per litre (parts per trillion).

All values I saw reported were in the range of parts per billion (ppb or nanogram per gram).

The breast milk of smoking mothers contains between 2 and 240 nanograms of nicotine per millilitre, which means their babies receive a dose equivalent to 0.3 to 36 micrograms / kg / day.

For the study, the researchers identified the minimum healthy level of 25 - hydroxyvitamin D in blood plasma to be 30 nanograms per milliliter.

However, the amount of nicotine in the blood after exposure to iQOS vapor was substantially higher (70.3 nanogram / milliliter for iQOS, 15.0 nanogram / milliliter for cigarettes).

Fixed wavelength (254 and / or 280 nm) and multiwavelength detectors like PDA have been widely employed with sensitivity in the nanogram range or even lower.

But the data in this latest study also revealed something puzzling: falling levels of BPA in urine when 2006 measurements were compared with 2004; concentrations decreased from an average of 2.49 to 1.79 nanograms per milliliter.

New Institute of Medicine guidelines say most people get sufficient vitamin D when their blood levels are at or above 20 nanograms per milliliter (ng / mL).

While healthy people averaged 60 nanograms per milliliter of BDNF in their bloodstreams, patients with brain injuries had less than one - third of that amount, averaging less than 20 nanograms per milliliter, and those with the most severe TBIs had even lower levels, around 4 nanograms per milliliter.

However, the concentrations detected are below the maximum residue level authorized for human consumption (average ± standard error for positive samples: 1.8 ± 0.56 nanograms per gram).

• Men who had sudden cardiac arrests had testosterone levels of 4.4 nanograms per milliliter, compared to 5.4 nanograms per milliliter for men who did not have sudden cardiac arrest.

Other organisms, such as humans, are multicellular, (humans have an estimated 100 trillion cells; a typical cell size is 10 µm, a typical cell mass 1 nanogram).

A 2009 study found an increased risk of accidents for levels of THC higher than five nanograms per milliliter of blood, which some evidence indicates is as impairing as a blood alcohol concentration around the legal limit of 0.08 percent.

Dong was also corresponding author on a study published in 2015 in the journal BioMed Central Obesity that showed, in this same group of individuals, both 2,000 and 4,000 IUs restored more desirable vitamin D blood levels of 30 nanograms per milliliter.

Those with PFOS blood levels exceeding 26 nanograms / milliliter were at least 70 percent more likely to be infertile, and those with more than 3.9 ng / ml of PLOA in their blood were at least 60 percent more likely to take longer to get pregnant.

Twelve states don't allow drivers any THC, and five more have set thresholds of 5, 2, 1 or nanograms per millilitre.

Every millilitre of semen has up to 300,000 nanograms of DNA.

For blood, the figure is 30,000 nanograms, while saliva, another rich source, contains a tenth of that.

A vitamin D level greater than 50 nanograms per milliliter is considered high.

«Overall, our study suggests that what is best for men's health is to keep testosterone levels balanced and within a normal range,» says Loeb, who suggests that men with testosterone levels below 350 nanograms per deciliter and symptoms should seek medical advice about whether they should consider testosterone therapy.

Hentges» group estimates that the daily BPA intake needed to create urine concentrations reported by the CDC scientists should be in the neighborhood of 50 nanograms per kilogram of bodyweight — or one millionth of an amount at which «no adverse effects» were measured in multi-generation animal studies.