Evidencing nickel biosorption capacity of cyanobacteria Chroococcidiopsis sp.: potential metallo-protective agents

IF 4.3 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY BMC Chemistry Pub Date : 2025-03-05 DOI:10.1186/s13065-025-01393-6

Hadjira Hamai-Amara, Imen Saadaoui, Maroua Cherif, Dana A. Da’ana, Lama Soubra, Mohammad A. Al-Ghouti

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Abstract

The increasing prevalence of toxic elements such as nickel (Ni) in the environment poses a significant threat to human health due to its carcinogenic effect. The study investigates the Ni biosorption potential of three cyanobacteria strains: Euhalothece sp., Halospira sp., and Chroococcidiopsis sp. Hence, the physicochemical properties of biomass and extract were assessed through transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and Brunauer-Emmet-Teller (BET). Batch experiments for Ni²⁺ biosorption were conducted and residual nickel (Ni²⁺) levels were quantitatively assessed using Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES). The results evidence interesting Ni²⁺ removal efficiency of Chroococcidiopsis sp. biomass reaching a biosorption capacity of 18.19 mg g⁻¹ under pH 6, and 37 °C. Several functional groups including amide, carbonyl, phosphate, and carboxyl groups were revealed as key players in this process via FTIR. Finally, such findings highlight the significant potential of cyanobacterial biomass and by-products to reduce nickel bioavailability to prevent Ni-induced carcinogenesis.

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证明蓝藻对镍的生物吸附能力：潜在的金属保护剂

镍（Ni）等有毒元素在环境中越来越普遍，由于其致癌作用，对人类健康构成重大威胁。本研究考察了三种蓝藻菌株Euhalothece sp.、Halospira sp.和Chroococcidiopsis sp.的Ni生物吸附电位，并通过透射电镜（TEM）、傅里叶变换红外光谱（FTIR）和布鲁诺尔-埃米特-泰勒（BET）对生物量和提取物的理化性质进行了评价。采用电感耦合等离子体发射光谱（ICP-OES）对Ni2⁺的生物吸附进行了批量实验，并定量评估了Ni2⁺的残留镍含量。结果表明，Ni2⁺在pH为6、温度为37℃的条件下对Chroococcidiopsis sp.生物质的吸附量达到18.19 mg g−1。通过FTIR发现酰胺、羰基、磷酸基和羧基等官能团在这一过程中起着关键作用。最后，这些发现强调了蓝藻生物量和副产品在降低镍的生物利用度以防止镍诱导的致癌作用方面的重大潜力。图形抽象

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来源期刊

BMC Chemistry Chemistry-General Chemistry

CiteScore

5.30

自引率

2.20%

发文量

审稿时长

27 weeks

期刊介绍： BMC Chemistry, formerly known as Chemistry Central Journal, is now part of the BMC series journals family. Chemistry Central Journal has served the chemistry community as a trusted open access resource for more than 10 years – and we are delighted to announce the next step on its journey. In January 2019 the journal has been renamed BMC Chemistry and now strengthens the BMC series footprint in the physical sciences by publishing quality articles and by pushing the boundaries of open chemistry.