Cyanide-free environment-friendly alternative to copper electroplating for zinc die-cast alloys

Rico-Yuson, Christine Adelle; Hornyak, Gabor L.; Bora, Tanujjal

doi:10.1007/s11356-021-13398-4

Cited by 5 publications

(2 citation statements)

References 26 publications

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“…The essence of biomolecule autoxidation is oxidation involving trace amounts of transition metals. It has been reported that glutamate can react with copper by forming complexes [51,52]. Indeed, as shown in Figure 1D, the characteristic blue color of glutamatecopper complexes is enhanced as a function of the increased glutamate concentrations.…”

Section: Autoxidation Of Dopamine and The Protective Role Of Glutamatementioning

confidence: 65%

An Unrecognized Fundamental Relationship between Neurotransmitters: Glutamate Protects against Catecholamine Oxidation

Wang

Yang

et al. 2021

Antioxidants

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Neurotransmitter catecholamines (dopamine, epinephrine, and norepinephrine) are liable to undergo oxidation, which copper is deeply involved in. Catecholamine oxidation-derived neurotoxicity is recognized as a pivotal pathological mechanism in neurodegenerative diseases. Glutamate, as an excitatory neurotransmitter, is enriched in the brain at extremely high concentrations. However, the chemical biology relationship of these two classes of neurotransmitters remains largely unknown. In the present study, we assessed the influences of glutamate on the autoxidation of catecholamines, the copper- and copper-containing ceruloplasmin-mediated oxidation of catecholamines, the catecholamine-induced formation of quinoprotein, catecholamine/copper-induced hydroxyl radicals, and DNA damage in vitro. The results demonstrate that glutamate, at a physiologically achievable molar ratio of glutamate/catecholamines, has a pronounced inhibitory effect on catecholamine oxidation, catecholamine oxidation-evoked hydroxyl radicals, quinoprotein, and DNA damage. The protective mechanism of glutamate against catecholamine oxidation could be attributed to its restriction of the redox activity of copper via chelation. This previously unrecognized link between glutamate, catecholamines, and copper suggests that neurodegenerative disorders may occur and develop once the built-in equilibrium is disrupted and brings new insight into developing more effective prevention and treatment strategies for neurodegenerative diseases.

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Section: Autoxidation Of Dopamine and The Protective Role Of Glutamatementioning

confidence: 65%

An Unrecognized Fundamental Relationship between Neurotransmitters: Glutamate Protects against Catecholamine Oxidation

Wang

Yang

et al. 2021

Antioxidants

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“…Sadhra et al conducted a study on electroplaters in West Midlands, England, to compare the responses of workers and safety experts regarding the safety measures and concluded that workers consider PPE as the most effective safety measure, while experts gave it the least importance [ 11 ]. Many cyanide-free alternatives are being investigated in the process of electroplating to avoid the risk associated with the use of cyanide [ 12 ].…”

Section: Discussionmentioning

confidence: 99%

Accidental Deaths Due to Toxic Industrial Cyanide Inhalation: An Autopsy Case Report

Jadav¹,

Saraf²,

Shekhawat³

et al. 2022

Cureus

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Autopsies of accidental deaths in industrial scenarios have always been a challenging job for a forensic pathologist. Industries that employ chemical agents pose a unique risk, especially when safety protocols are ignored. Exposure to cyanide salts creates an additional risk since death may occur quickly. We present one such incident of the accidental deaths of three industrial workers, which could have been prevented if proper safety measures had been followed. Four workers fell unconscious while cleaning the electroplating chamber of the handicraft industry. Three were declared dead on arrival at the emergency department, while one survived. Autopsy of all three victims showed similar findings of pink-colored post-mortem staining and multiple petechial hemorrhages over the heart and lungs. After histopathological and chemical analysis, the cause of death was opined to be due to complications of cyanide poisoning. In accidental industrial deaths, the forensic pathologist should consider the possibility of death due to toxic chemicals, such as cyanide, used in the manufacturing process. The industrial personnel should be educated about the risks involved, and proper use of safety equipment should be encouraged to avoid such hazardous outcomes. Additionally, the people employed in the autopsy of the deaths related to chemical disasters should ensure their personal safety and preventive measures.

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The use of food additives as green and environmental-friendly anti-corrosion inhibitors for protection of metals and alloys: a review

Low,

Yusoff,

Batar

et al. 2023

Environ Sci Pollut Res

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Cyanide-free environment-friendly alternative to copper electroplating for zinc die-cast alloys

Cited by 5 publications

References 26 publications

An Unrecognized Fundamental Relationship between Neurotransmitters: Glutamate Protects against Catecholamine Oxidation

An Unrecognized Fundamental Relationship between Neurotransmitters: Glutamate Protects against Catecholamine Oxidation

Accidental Deaths Due to Toxic Industrial Cyanide Inhalation: An Autopsy Case Report

The use of food additives as green and environmental-friendly anti-corrosion inhibitors for protection of metals and alloys: a review

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