Toxicology of Dyes

Author(s):  
Aarti Singh ◽  
Anupama Mittal ◽  
Nirmala Kumari Jangid

Colours play a prominent and dominant role in human life. The dominating feature of any product has been found with its colours elevating the market of colouration in different sectors. Studies have shown that around 10,000 dyes are being circulated in market. Chemistry has been found to lead this industry of colours. Vast production of fabric colours include azo dyes, whereas anthroquinone is also one of the prevailing complexes for cotton and fabric dyeing. The toxic level of the dyes and pigments are not confined till manufacturing but also have after usage effect of the products. It has been found that the chemicals have a carcinogenic effect on human health. During the manufacturing procedure, around 50% of dye stuff gets along with the effluents of the industry leading to release of colourful water. Modification in choice of chemicals is being considered to lessen the toxic effects of existing complexes. This chapter is mainly focused on the toxicology of dyes.

2020 ◽  
Vol 16 ◽  
Author(s):  
Ramazan Akçan ◽  
Halit Canberk Aydogan ◽  
Mahmut Şerif Yıldırım ◽  
Burak Taştekin ◽  
Necdet Sağlam

Background/aim: Use of nanomaterials in the healthcare applications increases in parallel to technological developments. It is frequently utilized in diagnostic procedures, medications and in therapeutic implementations. Nanomaterials take place among key components of medical implants, which might be responsible for certain toxic effects on human health at nano-level. In this review, nanotoxicological effects, toxicity determination of nanobiomaterials used in human body and their effects on human health are discussed. Material and Method: A detailed review of related literature was performed and evaluated as per nanomaterials and medical implants. Results and Conclusion: The nanotoxic effects of the materials applied to human body and the determination of its toxicity are important. Determination of toxicity for each nanomaterial requires a detailed and multifactorial assessment considering the properties of these materials. There are limited studies in the literature regarding the toxic effects of nanomaterials used in medical implants. Although these implants are potentially biocompatible and biodegradable, it is highly important to discuss nanotoxicological characteristics of medical implant.


Coatings ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 380
Author(s):  
Hamed Ahari ◽  
Leila Khoshboui Lahijani

Packaging containing nanoparticles (NPs) can increase the shelf life of products, but the presence of NPs may hazards human life. In this regard, there are reports regarding the side effect and cytotoxicity of nanoparticles. The main aim of this research was to study the migration of silver and copper nanoparticles from the packaging to the food matrix as well as the assessment techniques. The diffusion and migration of nanoparticles can be analyzed by analytical techniques including atomic absorption, inductively coupled plasma mass spectrometry, inductively coupled plasma atomic emission, and inductively coupled plasma optical emission spectroscopy, as well as X-ray diffraction, spectroscopy, migration, and titration. Inductively coupled plasma-based techniques demonstrated the best results. Reports indicated that studies on the migration of Ag/Cu nanoparticles do not agree with each other, but almost all studies agree that the migration of these nanoparticles is higher in acidic environments. There are widespread ambiguities about the mechanism of nanoparticle toxicity, so understanding these nanoparticles and their toxic effects are essential. Nanomaterials that enter the body in a variety of ways can be distributed throughout the body and damage human cells by altering mitochondrial function, producing reactive oxygen, and increasing membrane permeability, leading to toxic effects and chronic disease. Therefore, more research needs to be done on the development of food packaging coatings with consideration given to the main parameters affecting nanoparticles migration.


Author(s):  
Rohit Rastogi ◽  
Mamta Saxena ◽  
Mayank Gupta ◽  
Akshit Rajan Rastogi ◽  
Pradeep Kumar ◽  
...  

From ancient times, humans are striving for being healthy and to live with mental peace with family and society. In the previous centuries also, some manmade and mostly natural disasters have disturbed the pace of human life. There have been times when the whole human race has been in terror, danger, and utmost worry. The electrical gadgets also have made the human life comfortable, but also machines have dominated its consciousness. The stress, aggression, depression, and many more issues are also showing presence in all our lives. The chapter is a trial to establish the effect of yagna and mantra science over human calmness and its effect on human health irrespective to gender and age. The article also elaborates the effect of Sanskrit sound and mantra chanting on emission of radiations from electronic gadgets. It also presents the effect of spiritual practices on the human body and soul after the terror, stress, grief created due to COVID-19.


2017 ◽  
Vol 6 (1) ◽  
pp. 1 ◽  
Author(s):  
Ram Proshad ◽  
Tapos Kormoker ◽  
Md. Saiful Islam ◽  
Mohammad Asadul Haque ◽  
Md. Mahfuzur Rahman ◽  
...  

Plastics are used widely everywhere in our life and without plastic, modern civilization would indeed look very diverse. This study focuses on the toxic effects of plastic on human health and environment and possible consequences of health risk assessment in Bangladesh. Plastics are essential materials in modern civilization, and many products manufactured from plastics and in numerous cases, they promote risks to human health and the environment. Plastics are contained many chemical and hazardous substances such as Bisphenol A (BPA), thalates, antiminitroxide, brominated flame retardants, and poly- fluorinated chemicals etc. which are a serious risk factor for human health and environment. Plastics are being used by Bangladeshi people without knowing the toxic effects of plastic on human health and environment. Different human health problems like irritation in the eye, vision failure, breathing difficulties, respiratory problems, liver dysfunction, cancers, skin diseases, lungs problems, headache, dizziness, birth effect, reproductive, cardiovascular, genotoxic, and gastrointestinal causes for using toxic plastics. Plastics occur serious environment pollution such as soil pollution, water pollution, and air pollution. Application of proper rules and regulations for the production and use of plastics can reduce toxic effects of plastics on human health and environment.


Author(s):  
Daiane de Freitas Resende ◽  
Geisa Cristina da Silva Alves ◽  
Renê Oliveira do Couto ◽  
Cristina Sanches ◽  
Farah Maria Drumond Chequer

2021 ◽  
Author(s):  
Yulia Orlovska ◽  
◽  
Svitlana Mashchenko ◽  

The article is devoted to the analysis of the directions of transformation of scientific methods of economic cognition in the post-industrial period of social development. It has been determined that the objective social reason for the need for methodological changes in economics is the transition to the digital economy. The use of digital technologies in the economic sector creates a situation of virtualization of production, market and monetary relations. The answer of economics is to improve existing and search for new tools of economic knowledge. The following areas of transformation of economic research methods have been identified by the authors: at first, the rapid development of the mathematical apparatus necessary for the study of economic processes has caused a tendency to mathematize economic research. Second, mathematical modeling becomes the leader among the most used economic methods. Mathematical models in economic research are used extremely widely. They are used to find a specific solution to economic problem, and to conduct an experimental test of the chosen solution, and to forecast trends in the further development of a large economic system or a private enterprise. The third trend is digital technologies, which allow conducting analytical research, tracking any changes in the environment, timely and flexible response to market needs. An example is Data Mining technology, which is a set of different methods of searching and analyzing data to find new, non-trivial, practically useful and interpretable knowledge needed to make decisions in various spheres of human life. Finally, the latest trend is the borrowing of methodological tools from other sciences, both the exact and the humanities. Only under the condition of a multidimensional study of economic reality, it is possible to obtain adequate to reality knowledge. These trends reveal the mathematization of economic methods, the dominant role of modeling in economic cognition, digitalization of economic research and at the same time are the most obvious signs of the transformational state of science during the transition of society to post-industrial level.


2021 ◽  
Vol 1 (12(81)) ◽  
pp. 33-35
Author(s):  
Н. Жорняк

Social experience plays a dominant role in human life as an individual, as a member of society. Obtaining social experience is characterized by spontaneity (assimilation of social experience from the "flow" of life), spontaneity (the work of social instincts inherent in a person), but at the same time it is a purposeful process (through providing a person with a normative experience selected in accordance with the culture of society). Its assimilation takes place in the process of socialization, and fiction is an important means of education of social competence in younger students. 


Author(s):  
Alan W. Ewert ◽  
Denise S. Mitten ◽  
Jillisa R. Overholt

Abstract This book chapter approaches the linkage between natural landscapes and human health through the lens of two guiding questions, the first considering the various ways nature benefits human health from both historic and contemporary perspectives, and the second considering the mechanisms through which this relationship occurs. In doing so, we consider the ways societies and cultures have mediated our relationship with the natural world over time, and the ways human health and planetary health are intertwined. It also examines these influences by providing an overview of what is currently known about specific variables, such as physical activity in natural landscapes, as well as discussing some of the past and current theories that seek to explain how these connections actually work. The book provides a bridge between what we do (individually and collectively) in natural settings and how those actions impact our health and our relationships with the natural world. The hope is that the information presented here empowers students and professionals to learn more and to be part of the rich dialogue occurring in many disciplines to help find ways to increase well-being for all people. The aim is for the readers to think critically about research and be able to analyse and evaluate the results. The bottom line, based on the undertaking of this book and the experience of the authors, is that nature has been and continues to be essential and incredibly positive for human life, and that mutualistic and reciprocal connections with nature will positively influence human development, health, and wellbeing.


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