Chitosan and carboxymethyl chitosan mimic biomineralization and promote microbially induced calcium precipitation

Wang, Zhao; Su, Junfeng; Ali, Amjad; Yang, Wenshuo; Zhang, Ruijie; Li, Yifei; Zhang, Lingfei; Li, Jiawei

doi:10.1016/j.carbpol.2022.119335

Cited by 47 publications

(8 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results are consistent with the description of Fan et al [17]. These peaks can be attributed to the asymmetrical and symmetrical stretching of the -COO groups [18]. The observed absorption peak at 1632 cm −1 in the ACC spectra indicated the stretching vibration associated with the amide group.…”

Section: Characterizations Of Acc and Dassupporting

confidence: 92%

The Preparation and Properties of Amino-Carboxymethyl Chitosan-Based Antibacterial Hydrogel Loaded with ε-Polylysine

Li,

Qiu,

Hou

et al. 2023

Foods

View full text Add to dashboard Cite

In this paper, amino-carboxymethyl chitosan (ACC) was prepared through amino carboxymethylation, which introduces -COOH and -NH2 groups to the chitosan (CS) chains. Meanwhile, dialdehyde starch (DAS) was produced by oxidizing corn starch using sodium periodate. To attain the optimal loading and long-time release of ε-polylysine (ε-PL), the ACC/DAS hydrogels were synthesized through the Schiff base reaction between the amino group on ACC and the aldehyde group in DAS. The molecular structure, microcosmic properties, loading capacity, and bacteriostatic properties of the four types of hydrogels containing different mass concentrations of ACC were investigated. The results showed that the dynamic imine bond C=N existed in the ACC/DAS hydrogels, which proved that the hydrogels were formed by the cross-linking of the Schiff base reaction. With the increasing mass concentration of the ACC, the cross-sectional morphology of the hydrogel became smoother, the thermal stability increased, and the swelling behavior was gradually enhanced. The tight network structure improved the ε-PL loading efficiency, with the highest value of 99.2%. Moreover, the loading of ε-PL gave the hydrogel good antibacterial properties. These results indicate that ACC/DAS hydrogel is potential in food preservation.

show abstract

Section: Characterizations Of Acc and Dassupporting

confidence: 92%

The Preparation and Properties of Amino-Carboxymethyl Chitosan-Based Antibacterial Hydrogel Loaded with ε-Polylysine

Li,

Qiu,

Hou

et al. 2023

Foods

View full text Add to dashboard Cite

show abstract

“…The remediation efficiency against Cu 2+ is not as high as that against Pb 2+ , and such low remediation efficiency appears to present in some ranges of NH 4 + and Cu 2+ concentration. Also, the higher precipitation mass does not necessarily correspond to the higher remediation efficiency, although some researchers gain opposite results (Jiang et al, 2019;Wang et al, 2022). In light of this, further exploration to shed light on the impact of the species of carbonate precipitation is deemed of great necessity towards revealing the inherent mechanisms causing the reduction in the remediation efficiency against Cu 2+ .…”

Section: Pb or Cu Remediationmentioning

confidence: 99%

Immobilizing lead and copper in aqueous solution using microbial- and enzyme-induced carbonate precipitation

Wang

Cheng

Xue

et al. 2023

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

Inappropriate irrigation could trigger migration of heavy metals into surrounding environments, causing their accumulation and a serious threat to human central nervous system. Traditional site remediation technologies are criticized because they are time-consuming and featured with high risk of secondary pollution. In the past few years, the microbial-induced carbonate precipitation (MICP) is considered as an alternative to traditional technologies due to its easy maneuverability. The enzyme-induced carbonate precipitate (EICP) has attracted attention because bacterial cultivation is not required prior to catalyzing urea hydrolysis. This study compared the performance of lead (Pb) and copper (Cu) remediation using MICP and EICP respectively. The effect of the degree of urea hydrolysis, mass and species of carbonate precipitation, and chemical and thermodynamic properties of carbonates on the remediation efficiency was investigated. Results indicated that ammonium ion (NH4+) concentration reduced with the increase in lead ion (Pb2+) or copper ion (Cu2+) concentration, and for a given Pb2+ or Cu2+ concentration, it was much higher under MICP than EICP. Further, the remediation efficiency against Cu2+ is approximately zero, which is way below that against Pb2+ (approximately 100%). The Cu2+ toxicity denatured and even inactivated the urease, reducing the degree of urea hydrolysis and the remediation efficiency. Moreover, the reduction in the remediation efficiency against Pb2+ and Cu2+ appeared to be due to the precipitations of cotunnite and atacamite respectively. Their chemical and thermodynamic properties were not as good as calcite, cerussite, phosgenite, and malachite. The findings shed light on the underlying mechanism affecting the remediation efficiency against Pb2+ and Cu2+.

show abstract

“…In addition, the stoichiometric interaction between positively charged Ca 2+ ions and the negatively charged bacterial wall was observed, which was beneficial to the adhesion of bacteria onto the surface of clay minerals and leads to an increase in the size of biomineral formed by MICP . Earlier studies have shown that extracellular polymeric substances (EPS) secreted by bacteria could entrap Ca 2+ ions. − The Ca 2+ ions were adsorbed by EPS so that bacteria tend to be adsorbed onto clay surfaces containing Ca 2+ ions.…”

Section: Introductionmentioning

confidence: 99%

Ca²⁺-Facilitated Adhesion of Bacteria on the Na-Montmorillonite Surface

Sun

Lei

2023

ACS Omega

View full text Add to dashboard Cite

The adhesion of bacteria on clay surfaces strongly affected their migration and distribution in soil and water. Bacterial adhesion experiments on the Na-montmorillonite (Na-MMT) surface were conducted to determine the role of Na-MMT in the bacterial adhesion process and to prove the validity of the isotherm and kinetic theory for the bacterial surface adhesion in the presence of Ca2+ ions. Batch adhesion experiments with bacteria on the Na-MMT surface were carried out with varying time frames, temperatures, bacterial concentrations, and Ca2+ ion concentrations. The adhesion capacity of Na-MMT significantly correlated with the Ca2+ ion concentration, temperature, time frame, and bacterial concentration when Ca2+ ions were present. The adhesion morphology of the bacteria onto the Na-MMT surface, observed through the zeta-potential and atomic force microscopy (AFM), additionally demonstrated that the bacterial adhesion onto the Na-MMT surface was dominated by the nonelectrostatic force.

show abstract

Chitosan and carboxymethyl chitosan mimic biomineralization and promote microbially induced calcium precipitation

Cited by 47 publications

References 47 publications

The Preparation and Properties of Amino-Carboxymethyl Chitosan-Based Antibacterial Hydrogel Loaded with ε-Polylysine

The Preparation and Properties of Amino-Carboxymethyl Chitosan-Based Antibacterial Hydrogel Loaded with ε-Polylysine

Immobilizing lead and copper in aqueous solution using microbial- and enzyme-induced carbonate precipitation

Ca²⁺-Facilitated Adhesion of Bacteria on the Na-Montmorillonite Surface

Contact Info

Product

Resources

About

Chitosan and carboxymethyl chitosan mimic biomineralization and promote microbially induced calcium precipitation

Cited by 47 publications

References 47 publications

The Preparation and Properties of Amino-Carboxymethyl Chitosan-Based Antibacterial Hydrogel Loaded with ε-Polylysine

The Preparation and Properties of Amino-Carboxymethyl Chitosan-Based Antibacterial Hydrogel Loaded with ε-Polylysine

Immobilizing lead and copper in aqueous solution using microbial- and enzyme-induced carbonate precipitation

Ca2+-Facilitated Adhesion of Bacteria on the Na-Montmorillonite Surface

Contact Info

Product

Resources

About

Ca²⁺-Facilitated Adhesion of Bacteria on the Na-Montmorillonite Surface