Thiol-mediated etching of gold nanorods as a neoteric strategy for room-temperature and multicolor detection of nitrite and nitrate

2021 ◽  
Author(s):  
Marzieh Sepahvand ◽  
Forough Ghasemi ◽  
Hossein Mirseyed Hosseini
Keyword(s):  
Human Health ◽  
Gold Nanorods ◽  
Room Temperature ◽  
Scientific Communities ◽  
Negative Impacts ◽  
Living Organisms

The excessive presence of nitrite and nitrate in the environmental matrixes has raised concerns among the scientific communities due to their negative impacts on human health and living organisms. Considering...

scholarly journals Trapping liquid drugs inside crystals

2014 ◽  
Vol 70 (a1) ◽  
pp. C984-C984
Author(s):  
Alessia Bacchi ◽  
Davide Capucci ◽  
Paolo Pelagatti
Keyword(s):  
Human Health ◽  
Crystal Engineering ◽  
Room Temperature ◽  
The Body ◽  
New Materials ◽  
Active Molecule ◽  
Crystalline Materials ◽  
Pharmaceutical Ingredients ◽  
Solid Dosage ◽  
Intellectual Properties

The objective of this work is to embed liquid or volatile pharmaceuticals inside crystalline materials, in order to tune their delivery properties in medicine or agrochemistry, and to explore new regulatory and intellectual properties issues. Liquid or volatile formulations of active pharmaceutical ingredients (APIs) are intrinsically less stable and durable than solid forms; in fact most drugs are formulated as solid dosage because they tend to be stable, reproducible, and amenable to purification. Most drugs and agrochemicals are manufactured and distributed as crystalline materials, and their action involves the delivery of the active molecule by a solubilization process either in the body or on the environment. However some important compounds for the human health or for the environment occur as liquids at room temperature. The formation of co-crystals has been demonstrated as a means of tuning solubility properties of solid phases, and therefore it is widely investigated by companies and by solid state scientists especially in the fields of pharmaceuticals, agrochemicals, pigments, dyestuffs, foods, and explosives. In spite of this extremely high interest towards co-crystallization as a tool to alter solubility, practically no emphasis has been paid to using it as a means to stabilize volatile or labile or low-melting products. In this work we trap and stabilize volatile and liquid APIs and agrochemicals in crystalline matrices by engineering suitable co-crystals. These new materials alter the physic state of the active ingredients allowing to expand the phase space accessible to manufacturing and delivery. We have defined a benchmark of molecules relevant to human health and environment that have been combined with suitable partners according to the well known methods of crystal engineering in order to obtain cocrystals. The first successful results will be discussed; the Figure shows a cocrystal of propofol, a worldwide use anesthetic.

SnS2/MXene derived TiO2 hybrid for ultra-fast room temperature NO2 gas sensing

2021 ◽  
Author(s):  
Tianding CHEN ◽  
Wenhao YAN ◽  
Ying WANG ◽  
Jinli Li ◽  
Haibo Hu ◽  
...  
Keyword(s):  
Nitrogen Dioxide ◽  
Human Health ◽  
Room Temperature ◽  
Gas Sensing ◽  
Air Pollutant

Nitrogen dioxide (NO2) is a prominent air pollutant that is harmful to both the environment and human health. Conventional NO2 sensors that are designed to operate at room temperature often...

Positive and Negative Impacts of Selenium on Human Health and Phytotoxicity

2021 ◽  
pp. 73-90
Author(s):  
Gyanendra Tripathi ◽  
Dhirendra Kumar Srivastava ◽  
Vishal Mishra
Keyword(s):  
Human Health ◽  
Negative Impacts

Disease in fisheries and aquaculture

2020 ◽  
pp. 183-210
Author(s):  
Donald C. Behringer ◽  
Chelsea L. Wood ◽  
Martin Krkošek ◽  
David Bushek
Keyword(s):  
Human Health ◽  
Wild Species ◽  
Disease Transmission ◽  
Economic Losses ◽  
Nutrient Quality ◽  
Species Management ◽  
Negative Impacts ◽  
Management Approaches ◽  
Opening Up

Infectious marine diseases have profound impacts on fisheries and aquaculture through their effects on growth, fecundity, mortality, and marketability. Economic losses have motivated research to minimize the negative impacts of disease on these industries. However, this relationship is reciprocal, as fishing and aquaculture can shape disease transmission. The effects of fisheries and aquaculture on disease are scale dependent, with different outcomes at the population, metapopulation, community, and ecosystem levels. Management approaches are limited in fisheries, and intense in aquaculture, sometimes with undesirable impacts on wild species. Management needs can be particularly intense in hatcheries, where stocks are sensitive and kept at high densities. Increased interest in microbiome–disease interactions are opening up new opportunities to manage marine diseases in aquaculture. Solutions for marine diseases in fisheries and aquaculture may ultimately improve human health by reducing exposure to pathogens and increasing nutrient quality, but could negatively impact human health through exposure to antibiotics and other chemicals used to treat parasites.

10. Trade and the environment

2020 ◽  
pp. 318-356
Author(s):  
Jean-Frédéric Morin ◽  
Amandine Orsini ◽  
Sikina Jinnah
Keyword(s):  
Environmental Protection ◽  
Environmental Governance ◽  
Pollution Abatement ◽  
Legal Rules ◽  
Environmental Regimes ◽  
Trade And The Environment ◽  
Key Drivers ◽  
Negative Impacts ◽  
Living Organisms ◽  
Ozone Depleting Substances

This chapter explores the complex and multifaceted relationship between international trade and environmental protection. The global trade regime's normative principles, legal rules, and real-world consequences often contradict environmental governance. For example, there is tension between trade and environmental governance with respect to the commercialisation of endangered species, export of hazardous wastes, emissions involved in transporting goods, and patentability of living organisms. However, there are also synergies, which enable trade liberalisation and environmental protection to reinforce one another. For example, trade forces were key drivers in the reduction of ozone-depleting substances and the affordability of pollution abatement technologies. The chapter explores these conflicts and synergies by first discussing the literature that examines the positive and negative impacts that trade has on the environment. It goes on to look at the trade dimensions of various environmental regimes, and then environmental dimensions of the trade regime, within both the World Trade Organization and preferential trade agreements.

scholarly journals Concise Review of Nickel Human Health Toxicology and Ecotoxicology

Inorganics ◽  
2019 ◽  
Vol 7 (7) ◽  
pp. 89 ◽  
Author(s):  
Samuel Buxton ◽  
Emily Garman ◽  
Katherine E. Heim ◽  
Tara Lyons-Darden ◽  
Christian E. Schlekat ◽  
...  
Keyword(s):  
Human Health ◽  
Animal Studies ◽  
Abiotic Factors ◽  
Chemical Species ◽  
Metal Mixtures ◽  
Respiratory Cancer ◽  
Epigenetic Events ◽  
Emerging Issues ◽  
Living Organisms ◽  
Toxicity Effects

Nickel (Ni) metal and Ni compounds are widely used in applications like stainless steel, alloys, and batteries. Nickel is a naturally occurring element in water, soil, air, and living organisms, and is essential to microorganisms and plants. Thus, human and environmental nickel exposures are ubiquitous. Production and use of nickel and its compounds can, however, result in additional exposures to humans and the environment. Notable human health toxicity effects identified from human and/or animal studies include respiratory cancer, non-cancer toxicity effects following inhalation, dermatitis, and reproductive effects. These effects have thresholds, with indirect genotoxic and epigenetic events underlying the threshold mode of action for nickel carcinogenicity. Differences in human toxicity potencies/potentials of different nickel chemical forms are correlated with the bioavailability of the Ni2+ ion at target sites. Likewise, Ni2+ has been demonstrated to be the toxic chemical species in the environment, and models have been developed that account for the influence of abiotic factors on the bioavailability and toxicity of Ni2+ in different habitats. Emerging issues regarding the toxicity of nickel nanoforms and metal mixtures are briefly discussed. This review is unique in its covering of both human and environmental nickel toxicity data.

scholarly journals Impact of Kapotaksha river water pollution on human health and environment

2020 ◽  
Vol 31 (1) ◽  
pp. 1-9
Author(s):  
MA Hanif ◽  
R Miah ◽  
MA Islam ◽  
S Marzia
Keyword(s):  
Water Pollution ◽  
Human Health ◽  
River Water ◽  
Polluted Water ◽  
River Bank ◽  
Sewage System ◽  
The People ◽  
Living Organisms ◽  
River Water Pollution

This study was conducted to evaluate the Kapotaksha River water pollution status and its impacts on Human health and Environment. This study conducted a case study on four selected areas (Barakpur, Srirampur, Prbazar, and Gouranandapur) on the Kapotaksha river bank at Jhikargas Upazila. This river water pollution occurs by some natural process such as flood, storm, and natural biodegraded. But human activities are major reasons for the river water pollution. Industrialization, urbanization, domestic waste, sewage system, agrochemicals, etc are major causes for river water pollution. This more polluted water has an impact on human health and environment. This study was conducted to find out the polluted water due to various types of diseases such as scabies, asthma, dysentery and respiratory disease. Most of the people (49%) are affected by Scabies, 4% are affected by diarrhea, 5% are affected by dysentery, 25% of people are suffering from respiratory diseases and 4% are suffering from asthma and the polluted water pollutes soil by using the water in agriculture purpose answered by 20% respondents which is 100% of farmer respondents. If someone does not use this water can not affect soil answered by 80% of respondents. This river water becomes more polluted and harmful for human health and environment because this water hampered by the local colony, local trader, lack of proper management of sewage system, miss-use on the riverbank area for the dumping various solid waste on the river bank, chemical fertilizers, industries etc. At present now we cannot fulfill control this continuous river water pollution but we can minimize this problem and it would be positive for human health, others living organisms and Environment. Progressive Agriculture 31 (1): 1-9, 2020

Selective etching of gold nanorods by ferric chloride at room temperature

CrystEngComm ◽  
2009 ◽  
Vol 11 (12) ◽  
pp. 2797 ◽  
Author(s):  
Renxian Zou ◽  
Xia Guo ◽  
Jian Yang ◽  
Dandan Li ◽  
Feng Peng ◽  
...  
Keyword(s):  
Ferric Chloride ◽  
Gold Nanorods ◽  
Room Temperature ◽  
Selective Etching
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