Biological Functions of Cadmium, Nickel, Vanadium, and Tungsten

Dmytryk, Agnieszka; Tuhy, Łukasz; Samoraj, Mateusz; Chojnacka, Katarzyna

doi:10.1002/9781119133780.ch11

Cited by 3 publications

(4 citation statements)

References 107 publications

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“…Background levels of metals in commercial chitin obtained by shrimp peeling (Pandalus borealis; Sigma-Aldrich, Taufkirchen, Germany) are very low, permitting detections of traces of contaminants in ambient matter, too: levels of Al, Ti, and Fe are some 10-20 µg/g chitin; Cu and Zn come with about 1.5 µg/g regardless of the significant role of either metal in arthropods, while important toxic metals [22] such as Be, Cd, and U cannot easily be detected in the native material, implying almost any trace will be pinpointed. Binding capacity is about 40 µmol/g for most metals, while values for Al [22], Ce or Eu [39], V or Pb [14,22,40] are considerably higher. Most metals for which some biological role was established recently (e.g., [41]) bind rather well, so do Bi and certain others for which no (catalytic) biological role was detected so far.…”

Section: Processing Of Datamentioning

confidence: 99%

“…Except for this case, REEs can be taken-such as and adding to Al, Cr, Bi-to represent physiologically inert M 3+ for production of such a calibration function. With M 2+ , it can be Sr, Ba, Co, Ni (at sufficiently high potentials which preclude methanogenesis [40]), Pb, or Cd. Mg and Ca do not bind to chitin, whereas Mn, Cu, and Zn are involved in all life-forms (and thus shall generally "deviate" from the regression obtained in the above Equation ( 1) in favor of a stronger adsorption within sediment).…”

Section: Photoredox Processes and Retentionmentioning

confidence: 99%

“…There are no difficulties with coarse, gravellike sediments or beaches, but fine-grained sediments are more difficult to understand if inundated. Elements commonly occurring in oxidation states +IV and higher normally do not take part in biochemistry (except for Mo, V, and sometimes W [40]).…”

Section: Photoredox Processes and Retentionmentioning

confidence: 99%

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Chitin as a Sorbent Superior to Other Biopolymers: Features and Applications in Environmental Research, Energy Conversion, and Understanding Evolution of Animals

Blind

Fränzle

2021

Polysaccharides

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Chitin is an effective sorbent which can be used in environmental monitoring, beyond obvious applications in withholding metal-containing pollutants from wastewater- or nuclear fuel reprocessing flows, since background levels in (purified) chitin are very low except for a few metals (Fe, Cu, Al, Ti, and Zn). Since retention of Mx+ and their complexes on chitin depend on an oxidation state, and to a lesser extent the presence of possible ligands or co-ligands, partition between chitin samples exposed to sediment and those exposed to water can be changed by environmental factors such as local biota producing or absorbing/metabolizing effective ligands such as citrate or oxalate and by changes of redox potential. Thermodynamics are studied via log P, using calibration functions log P vs. 1/r or log P vs. Σσ (sum of Hammett parameters of ligand donor groups) for di- and trivalent elements not involved in biochemical activity (not even indirectly) and thus measuring “deviations” from expected values. These “deviations” can be due to input as a pollutant, biochemical use of certain elements, precipitation or (bio-induced reduction of SO42− or CO2) dissolution of solids in sediment. Biochemical processes which occur deep in sediment can be detected due to this effect. Data from grafted chitin (saturation within ≤ 10 min) and from outer surfaces of arthropods caught at the same site do agree well. Log P is more telling than total amounts retrieved. Future applications of these features of chitin are outlined.

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Section: Processing Of Datamentioning

confidence: 99%

Section: Photoredox Processes and Retentionmentioning

confidence: 99%

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Chitin as a Sorbent Superior to Other Biopolymers: Features and Applications in Environmental Research, Energy Conversion, and Understanding Evolution of Animals

Blind

Fränzle

2021

Polysaccharides

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“…It is also worth noting that the biological role of some metals, previously considered only harmful, has now been recognized. An example of such an element is cadmium [6].…”

Section: Introductionmentioning

confidence: 99%

Natural and Anthropogenic Origin of Metals in Lacustrine Sediments; Assessment and Consequences—A Case Study of Wigry Lake (Poland)

Kostka

Leśniak

2021

Minerals

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The contamination of aquatic sediments by metals is a worldwide phenomenon and its assessment is a fairly complex issue, as numerous factors affect the distribution of particular contaminants in the environment, as well as their bioavailability. Wigry Lake, as the object of this study, is almost a perfect water body for such considerations. It has been well investigated and densely sampled (up to 459 sediment samples). The quantities of seven metals were determined using the atomic absorption spectrometry (AAS) or inductively coupled plasma (ICP)-MS methods, following previous extraction in a microwave oven. The levels of concentration of the examined elements were as follows (min–max (mg·kg−1)): Cd—0.003–3.060; Cr—0.20–22.61; Cu—0.02–59.70; Fe—80–32,857; Mn—18–1698; Pb—7.0–107.5; Zn—3.1–632.1. Significant differences were also registered in terms of particular metal concentrations in different sediment types found at the lake bottom. Five different geochemical backgrounds and sediment quality guidelines implemented in the study enabled a very scrupulous contamination assessment of the lake sediments’ condition, as well as the evaluation of the natural and anthropogenic contribution to the enrichment of examined sediments in metals. Although Wigry Lake is situated in a pristine region, it is still subject to anthropopressure, which seems to be the lowest in respect to Cr and Mn, while the highest in the case of Pb. The chemoecological state of the lake was ultimately assessed as good. The study highlighted the necessity of an integrated approach to the assessment of contamination or pollution in the course of an environmental research.

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On the supramolecular properties of neutral, anionic and cationic cadmium complexes harvested from dithiolate–polyamine binary ligand systems

Adhikari¹,

Bhattacharjee²,

Das

et al. 2020

CrystEngComm

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Biological Functions of Cadmium, Nickel, Vanadium, and Tungsten

Cited by 3 publications

References 107 publications

Chitin as a Sorbent Superior to Other Biopolymers: Features and Applications in Environmental Research, Energy Conversion, and Understanding Evolution of Animals

Chitin as a Sorbent Superior to Other Biopolymers: Features and Applications in Environmental Research, Energy Conversion, and Understanding Evolution of Animals

Natural and Anthropogenic Origin of Metals in Lacustrine Sediments; Assessment and Consequences—A Case Study of Wigry Lake (Poland)

On the supramolecular properties of neutral, anionic and cationic cadmium complexes harvested from dithiolate–polyamine binary ligand systems

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