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Mutagenicity and Carcinogenicity01:25

Mutagenicity and Carcinogenicity

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Mutagenicity and carcinogenicity refer to the ability of drugs to cause genetic defects and induce cancer, respectively. The International Agency for Research on Cancer (IARC) classifies agents into four groups based on their carcinogenic potential. Group 1 agents are known human carcinogens; group 2A agents are probably carcinogenic to humans; group 3 agents lack data to support their role in carcinogenesis; and group 4 includes agents for which data support that they are not likely to be...
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Magnetic bacteria exhibit a directed movement called magnetotaxis, driven by structures called magnetosomes. These magnetosomes consist of chains of magnetic particles made of either magnetite (Fe₃O₄) or greigite (Fe₃S₄) and are organized in a linear conformation by a protein scaffold within invaginations of the cell membrane. The bacteria align along the north–south magnetic field lines, much like a compass needle. They are typically microaerophilic or anaerobic...
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The Periodic Table and Organismal Elements01:27

The Periodic Table and Organismal Elements

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Elements are the smallest units of matter that cannot be broken down further by chemical processes. There are 118 known elements, but not all of these are naturally occurring, and only a few of them are essential for life. Living matter is composed primarily of carbon, nitrogen, hydrogen, and oxygen, with smaller amounts of other elements like calcium, phosphorus, potassium, and sulfur. Other elements are also necessary for life but only in trace amounts.
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The Periodic Table and Organismal Elements00:57

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OverviewElements are the smallest units of matter that cannot be broken down further by chemical processes. There are 118 known elements, but not all of these are naturally-occurring, and fewer still are essential for life. Living matter is composed primarily of carbon, nitrogen, hydrogen, and oxygen, with smaller amounts of other elements like calcium, phosphorus, potassium, and sulfur. Other elements are also necessary for life but only in trace amounts.The Periodic Table Provides Information...
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Properties of Organometallic Compounds01:23

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Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
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Cancer Prevention02:59

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Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
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Related Experiment Video

Updated: May 5, 2026

Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability
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Unusual metals as carcinogens.

A Furst1, S B Radding

  • 1Institute of Chemical Biology, University of San Francisco, 94117, San Francisco, CA.

Biological Trace Element Research
|November 27, 2013
PubMed
Summary

This review examines the carcinogenic potential of various unusual metals, including rare earths, heavy metals, and precious metals. Findings highlight the need for further research into the specific mechanisms of metal-induced carcinogenesis.

Area of Science:

  • Environmental Science
  • Toxicology
  • Occupational Health

Background:

  • The carcinogenic potential of many metals is well-established.
  • However, the carcinogenicity of less common metals remains largely unexplored.
  • This gap in knowledge poses risks in occupational and environmental settings.

Purpose of the Study:

  • To conduct a comprehensive literature review on the carcinogenic properties of unusual metals.
  • To identify metals with potential carcinogenic effects that warrant further investigation.
  • To consolidate existing knowledge on metal carcinogenicity for researchers and policymakers.

Main Methods:

  • Systematic literature search using multiple databases.
  • Inclusion of studies reporting on the carcinogenicity of specified unusual metals.

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  • Synthesis of findings based on the quality and relevance of the evidence.

    • Main Results:

    • The review covers a wide array of metals, including rare earths (e.g., scandium, yttrium), precious metals (e.g., gold, platinum), and other elements (e.g., germanium, antimony, gallium).
    • Evidence for carcinogenicity varies significantly across the reviewed metals.
    • Several metals, such as mercury, lead, and aluminum, showed potential carcinogenic links requiring further study.

    Conclusions:

    • The carcinogenic potential of numerous unusual metals is an under-researched area.
    • Further toxicological and epidemiological studies are crucial to accurately assess the risks associated with these metals.
    • Understanding metal carcinogenicity is vital for public health and environmental safety regulations.