Since the last century, a continuum of technological innovations has impacted our society and daily lives. However, many ethical dilemmas can arise: from the development of new processes that alter genetic structure of different organisms, to the so called "smart devices", or the use of robots with software that replicates the human mind; etc. Design, use and implementation of these technologies imply the alteration of environment, life cycles and a transformation of society.The impact of this can be seen in two perspectives: a positive side, that includes the great tasks of humanity being solved by scientists and technologists, like the cure of severe diseases, the easiness of modern communications, development of new treatments, etc. but also a negative one, that implies the overexploitation of natural resources, vanishing of privacy rights, and increasing inequalities in information access for different sectors of world population.Following Mario Bunge's concept of technoethics, the author discusses some topics related to robotics, AI, and bioethics in general, considering these from different perspectives, including some pros and cons of the design and use of new technologies, as well as the impact of these technologies. Author argues in favor of an ethical framework that involves not only the use of technology, but an ethical conceptualization of the design and implementation of technology, and considers that scientists and technologists must be aware of a social and environmental responsibility, that compels them to act in accordance to ethical principles, understanding the different values and aspects associated to their research.Finally, the author considers of the utmost importance the process of an interdisciplinary approach in order to a better understanding of the complexities that arise in ethical dilemmas regarding technologies and offers some guidelines that can be useful for ethicists, scientists and technologists in order to asses R&D projects.