'Bio-nano interactions: new tools, insights and impacts': summary of the Royal Society discussion meeting.

Bio-nano interactions can be defined as the study of interactions between nanoscale entities and biological systems such as, but not limited to, peptides, proteins, lipids, DNA and other biomolecules, cells and cellular receptors and organisms including humans. Studying bio-nano interactions is particularly useful for understanding engineered materials that have at least one dimension in the nanoscale. Such materials may consist of discrete particles or nanostructured surfaces. Much of biology functions at the nanoscale; therefore, our ability to manipulate materials such that they are taken up at the nanoscale, and engage biological machinery in a designed and purposeful manner, opens new vistas for more efficient diagnostics, therapeutics (treatments) and tissue regeneration, so-called nanomedicine. Additionally, this ability of nanomaterials to interact with and be taken up by cells allows nanomaterials to be used as probes and tools to advance our understanding of cellular functioning. Yet, as a new technology, assessment of the safety of nanomaterials, and the applicability of existing regulatory frameworks for nanomaterials must be investigated in parallel with development of novel applications. The Royal Society meeting 'Bio-nano interactions: new tools, insights and impacts' provided an important platform for open dialogue on the current state of knowledge on these issues, bringing together scientists, industry, regulatory and legal experts to concretize existing discourse in science law and policy. This paper summarizes these discussions and the insights that emerged.

Codes of ethics (conduct).

Some international organizations and many societies of health and safety professionals have codes of ethics (conduct). The intent is to promote ethical behavior, though compliance is voluntary and enforcement is generally not possible. It is important that all occupational health and safety professionals adopt and live up to the same code. It also is important that the same code of conduct apply to industrializing countries just as it applies to developed countries. A new International Code of Conduct (Ethics) for Occupational Health and Safety Professionals, developed by 40 international health and safety professionals and set forth in this article, addresses professional obligations and responsibilities and introduces a higher standard of ethical conduct than formerly existed.

Protecting posterity: the occupational physician's ethical and legal obligations to pregnant workers.

This article describes Federal and international codes and laws that relate to protection from reproductive hazards in the workplace. Occupational health practitioners are advised to shift their approach from managing the technical aspects needed to protect individual workers to the more global approach of effecting policy and supporting enforcement in the realm of reproductive health. This broader view will not only better protect women and children but will better serve the interest of society in replacing all existing workers and perpetuating civilization for posterity.