نتایج جستجو برای: chromium reduction

تعداد نتایج: 513315  

2016
Zainulabedin M. Saiyed James P. Lugo

BACKGROUND Chromium dinicocysteinate (CDNC) is a unique chromium complex consisting of chromium, niacin, and L-cysteine. Previous preclinical and clinical studies support the safety and efficacy of CDNC in modulating oxidative stress, vascular inflammation, and glycemia in type 2 diabetes. OBJECTIVE Herein, we report the results of several exploratory analyses conducted on type 2 diabetic sub...

Background and Objective: Hexavalent chromium (Cr (VI)) is a highly toxic pollutant that isknown as a carcinogen and mutagen agent to humans. Photocatalytic reduction is one of the known ways to remove these contaminants. Therefore, the aim of this study was to investigate the catalytic effect of green iron nanoparticles, as eco-friendly materials, on photocatalytic reduction of Cr (VI) from wa...

2015
Sauro Pierucci Jiří J. Klemeš Mouhamadou Thierno Gueye Elisabetta Petrucci Luca Di Palma

The increasing industrial development of recent decades has lead to the production of increasing quantities of waste containing heavy metals, elements often harmful to the environment, which in the past were not properly disposed of, thus inducing soil and groundwater pollution. In particular, chromium (Cr) and its derivatives are largely used in industries such as textiles, electronics, metall...

2013
Farshid Kafilzadeh Mahmood Najafian Hamid Noorani Yaghoob Tahery

s: Chromium is one of the unessential heavy metal that makes high toxicity in the plants. The aim of this study was assaying the changes that come from toxicity of (Cr ) on some biochemical, physiological and 6+ ionic specification of Brassica napus variety sari flower. The tests were conducted at hydro ionic conditions and at 0, 25, 50, 75 and 100 μm concentration of K CrO with four repeats in...

ژورنال: سلامت و محیط زیست 2015
آسمان, الهام, اصغرنیا, حسینعلی, اکبری, حسین, ایرانشاهی, لیلا, سیاف, حسین, مصطفایی, غلامرضا,

Background and Objectives: In the field of environmental risk assessment, the earthworms are considered as the major component of the soil, and are important bio- indicators to measure the environmental health and quality of the soil. Hence, the present study aimed to prove the biological effectiveness of Eisenia fetida earthworms in Bioremediation the soils contaminated with chromium and cadmi...

2016
Sumaira Aslam Ali Hussain Javed Iqbal Qazi

We conducted a study for enhanced biological rehabilitation of chromium-contaminated soils using a chromium-reducing and nitrogen-fixing bacterial species (Bacillus megaterium-ASNF3). The bacterial species was isolated from a chromium-rich land area, characterized, and employed under optimum conditions for the treatment of artificially prepared chromium-rich soil. The bacterium reduced Cr(VI) u...

Journal: :Environmental Health Perspectives 1991
R J Bartlett

The major links in the cycling of chromium in soils and in natural waters are between chromium(III) and chromium (VI). Between the larger links are lesser links involving processes of mobilization and oxidation of CrIII and reduction of CrVI. The gaps are mainly in our understanding of the factors that control these processes. If soluble CrIII is added to an "average" soil, a portion of it will...

Ali Noori Diziche, Kahin Shahanipour, Mohammad Adibnejad, Parisa Sheikh Samani,

Objective: Due to the lack of information about the positive or negative effects of L-carnitine, chromium, vitamin D, and the uptake of a safe dietary supplement to reduce the effects of diabetes, it seems essential to determine the effects of these drugs on diabetes. Materials and Methods: Wistar rats were divided into 12 groups, control, diabetic, and intact, each of which was treated with m...

AA. Reza Shishehbore Hassan Bagheri Mohammad Saber- Tehrani Navid Nasirizadeh

A new simple arid rapid catalytic kinetic method for determination of trace amounts of chromium (110 isdescribed. The method is based on the catalytic effect of chromium (III) on the reduction of Methylene blue byascorbic acid in acidic media. The reaction monitored smectrophotomenically by measuring the decrease ofabsorbance at 664 nm at 25 C. The fixed-time method was used for the first 300 s...

2017
Jahnabi Saha Soma Choudhuri Dipayan Choudhuri

Objectives: Exposure to chromium, the transition element found in many compounds of earth’s crust, leads to various health hazards including cancer, dermatitis, damage of liver and kidneys, and reproductive toxicity in both male and female. Toxic effect of chronic exposure to chromium at low environmentally relevant dose is recently recognized and less studied. In the present study, we evaluate...

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