Bisphenol A (BPA)

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Context: Recently concluded CSIR study has shown that Bisphenol A (BPA) levels were below detection limits in PET bottles:

Background: Bisphenol A (BPA)
BPA is commonly used to coat the insides of food cans, bottle tops, and water supply lines, and was once a component of baby bottles.

Concerns:

  1. BPA is an endocrine disruptor.
  2. While BPA that seeps into food and drink is considered safe in low doses, prolonged exposure is suspected of affecting the health of children and contributing to high blood pressure.
  3. It can imitate the body's hormones, and it can interfere with the production, secretion, transport, action, function, and elimination of natural hormones.
  4. Research has linked exposure to fertility problems, male impotence, heart disease, insulin resistance, fetal brain development, breast and prostate cancer, and asthma

In a related context, scientists at Rice University in the US have developed tiny spheres that can catch and destroy bisphenol A (BPA), These micron-sized spheres developed resemble tiny flower-like collections of titanium dioxide petals.

It has a two-faced structure, with a hydrophobic (water-avoiding) cavity and a hydrophilic (water-attracting) outer surface.

BPA is hydrophobic and naturally attracted to the cavity. Once trapped, reactive oxygen species (ROS) produced by the spheres degrades BPA into harmless chemicals.



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