Because they are less toxic

Because they are more easily removed from the body with urine

Because they are easily made into lubricants

Because they remain in the body throughout life

Because they are less expensive

Effective in the treatment of tumors and strongly affects tumors

Can be used instead of radiochemotherapy and is an universal treatment method

The effect of quantum dots on cells (macrophages) of the immune system could be achieved

It is characterized by an uncontrolled effect

Has little damage to nearby normal tissues and can be combined with chemotherapy

Catheters are silver plated, silver is in special wound dressings and anti-infective reagents contain silver

Silver-plated instruments, anti-infective reagents contain silver and silver-plated heart system implants

Anti-infective reagents contain silver, silver is added to bone implants, artificial hip joints are made from silver

Anti-infective reagents contain silver, orthopedic implants are from silver and silver is in special wound dressings

Artificial knee joints are made from silver, implants of heart systems are silvered and silver is used in oncological diagnostic research

In sugar, protein and table salt

In hydroxybenzoic acid, salicylic acid and ethanoic acid

In toluene, amino acids and alcohol

In sodium chloride, water and benzene

In acetic acid, ice and peptides

Because their structure is close to that of cholesterol

Because gadolinium has many unpaired electrons

Because only Gd³⁺ coordination compounds exhibit sufficient selectivity

Because they show superparamagnetic properties

Because gadolinium has 7 unpaired electrons

Because zinc drugs may be effective in stopping the spread of the coronavirus in patients

Because it is found in many tissues of the body

Because it does not form compounds with polypeptides

Because zinc promotes the activity of various enzymes in the human body

Because many zinc products also contain another metal, cadmium

Less than 500

More than 500

As much as in the glucose dimer

More than 10⁶

More than 700

Bacterial damage caused by killed bacteria

When silver is added to antibiotics

The usage of photosensitive substances in medicine to strengthen the contractions of the heart muscle

When the drug in the form of nanoparticles can enter the body mainly through the skin

When bacteria killed and isolated by an anti-infective reagent can cause the death of viable bacteria with which they come into contact

There is no difference

Only nitroglycerin could be used as transdermal patch

Differs in the number of nitrate groups

It's the same compound, just named differently

One is used for high blood pressure, the other for angina

Because it has a predominance of covalent polar and ionic chemical bonds

Because it is found in uranium ore

A complex question to which is no right answer

Probably, for the same reason as other only radioactive elements

Because only technetium in periodic table of elements has unstable decomposing spontaneously nucleus