write uses of fullerene
Answers
The uses of fullerenes are ....
1) They are used as insulators.
2) Compounds of fullerenes are used as super conductors .
3) It is used in cancer and AIDS therapy.
4)They are used as lubricants.....
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Uses of Fullerenes:
Antioxidants
Fullerenes can make excellent antioxidants, this property can be attributed to a large number of conjugated double bonds they possess and a very high electron affinity of these molecules (due to low energy of the unoccupied molecular orbital). Fullerenes can react with a number of radicals before being consumed.
Antiviral Agents
Fullerenes have grabbed quite a bit of attention due to their potential as antiviral agents. Perhaps the most exciting aspect of this may be their ability to suppress the replication of the human immunodeficiency virus (HIV), and thus, delay the onset of acquired immunodeficiency syndrome (AIDS). Dendrofullerene 1 and Derivative 2, trans isomer has been seen to inhibit the HIV protease, and thus, prevent replication of HIV 1. Bivalent metal derivatives of amino acid derivatives of fullerene, like C60-1-Ala, are also seen to be active against HIV and human cytomegalovirus replication.
Drug Delivery and Gene Delivery
Drug delivery is the proper transportation of a pharmaceutical compound to its site of action, whereas gene delivery is the introduction of foreign DNA into cells to bring about the desired effect. It is therefore of utmost importance to deliver these molecules with safety and great efficacy. Fullerenes are a class of inorganic carriers, these molecules are preferred as they show good biocompatibility, greater selectivity, retain the biological activity, and are small enough to be diffused.
Photosensitizers in Photodynamic Therapy
Photodynamic Therapy (PDT) is a form of therapy of using a non-toxic light-sensitive compound which, when exposed to light, becomes toxic. This is used to target altered and malignant cells. Fullerenes are usually used as these compounds. Fullerenes get excited upon irradiation when these molecules return to ground state, they give off energy that splits the oxygen present to generate singlet oxygen, which can be cytotoxic in nature.
In Protective Eyewear
Fullerenes have optical limiting properties. This refers to its ability to decrease the transmittance of light incident to it. These molecules can, therefore, be used as an optical limiter that can be used in protective eyewear and sensors. This optical limiter will only allow the light below a particular threshold to pass through as well as maintain the light is transmitted at a constant level, much below the intensity that may cause damage to the eye or the sensor.
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