Green synthesis of oxidized starch with a novel catalyst based on Fe3O4 nanoparticles and H2O2 reagent to form thermoplastic as a stable gel coating on the cardiovascular stents

Hataminia, Fatemeh; Majidi, Reza Faridi; Najafi, Azar; Ghanbari, Hossein

doi:10.1016/j.ijbiomac.2022.07.119

Cited by 12 publications

(6 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The choice of catalyst is one of the most important factors for starch oxidation . To evaluate the catalytic efficiency of MgAlFe-LDHs, the decomposition rate of H 2 O 2 with the prepared catalysts was determined, as presented in Figure b.…”

Section: Resultsmentioning

confidence: 99%

One-Step Synthesis of Starch-Based Composite Chrome-Free Tanning Agents via In Situ Catalysis Using Hydrotalcites

Shen

Fan

et al. 2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

The oxidation of starch into valuable chemicals holds great promise for the leather industry, but the catalytic efficiency of existing reactions is low. Moreover, residual catalyst in the reaction liquid is a potential environmental hazard. Herein, starch was oxidized by hydrogen peroxide and a magnesium aluminum iron hydrotalcite (MgAlFe-LDH) catalyst to introduce functional groups and nanomaterials, forming a starch-based hydrotalcite composite (OS-MgAlFe-LDH) in one step. This catalyst showed improved catalytic efficiency, and the generation of pollution was avoided. Moreover, the prepared OS-MgAlFe-LDH was suitable as a complex tanning agent for chrome-free tanning with improved efficiency, and MgAlFe-LDH acted as a crosslinking reinforcing agent. Using this tanning agent, the hydrothermal stability of crust leather was enhanced (shrinkage temperature: 75 °C). The tanned leather had high porosity (79.06%) and a uniform tanning agent distribution ascribed to the varying molecular weights of the components of the OS-MgAlFe-LDHs (weight-average molecular weight: 5438 g/mol). The binding energy between OS-MgAlFe-LDHs and the leather collagen (94.62 kcal/mol) was high, inhibiting the migration of OS-MgAlFe-LDHs from the collagen matrix. Thus, OS-MgAlFe-LDHs exhibited strong crosslinking performance with leather collagen. In summary, a sustainable and environmental-friendly tanning agent was prepared by a one-step synthesis in this work, offering a fundamental step for the preparation of biomass materials in the leather industry.

show abstract

Section: Resultsmentioning

confidence: 99%

One-Step Synthesis of Starch-Based Composite Chrome-Free Tanning Agents via In Situ Catalysis Using Hydrotalcites

Shen

Fan

et al. 2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…Some traditional methods include the arc discharge method, laser ablation, and chemical oxidation. Green synthesis techniques provide environmentally conscious and ecologically friendly alternatives to conventional methods via the use of renewable resources, nontoxic solvents, and mild reaction conditions [17]. These approaches endeavor to limit environmental effects, conserve energy, and eliminate the usage of harmful chemicals.…”

Section: Green Synthesis Methodsmentioning

confidence: 99%

Green synthesis of carbon dots for sensing of heavy metal ions: Bibliometric analysis from 2003-2024

Soni,

Kaur,

Acevado

et al. 2024

E3S Web Conf.

View full text Add to dashboard Cite

The release of heavy metals into the environment has surged, due to rapid industrialization and urbanization globally, which causes. contamination of air, water, and soil. These persistent and bioaccumulative metals (lead, mercury, cadmium, and arsenic) pose major risks to both human health and the ecological balance. Therefore, heavy metal pollution emerges as a daunting challenge in contemporary times, Carbon dots (CDs) have attracted significant attention in recent years due to their potential applications in sensing heavy metal ions. Many conventional chemical methods have been used for the synthesis of CDs, however, these methods possess many shortcomings such as noxious byproducts, harsh chemicals, high cost, etc. To diminish these shortcomings, green chemistry plays a significant role in the preparation of CDs. Thus, it is very imperative to explore the green synthesis methodologies for the preparation of CDs over conventional ones. The article delves into a comprehensive bibliometric analysis of the green synthesis methods CDs for heavy metal ion sensing applications in the period between 2003-2024. Additionally, we have also provided an overview of the mechanism behind the green synthesis of CDs by exploring the role of phytoconstitutes present in natural resources. Furthermore, the sensing mechanism of CDs toward heavy metal ions is also explored. This review compiles the bibliometric analysis and synthesis process with various materials used for the detection of heavy metals.

show abstract

“…On a different note, IONPs were employed as less harmful catalysts for starch oxidation in a recent study published by Hataminia et al [46]. The thermoplastics made from the modified starch were then used to coat cardiac stents.…”

Section: Various Iron Oxide-based Nanoparticlesmentioning

confidence: 99%

Metal-Based Nanoparticles for Cardiovascular Diseases

Scafa Udriște,

Burdușel,

Niculescu

et al. 2024

IJMS

View full text Add to dashboard Cite

Globally, cardiovascular diseases (CVDs) are the leading cause of death and disability. While there are many therapeutic alternatives available for the management of CVDs, the majority of classic therapeutic strategies were found to be ineffective at stopping or significantly/additionally slowing the progression of these diseases, or they had unfavorable side effects. Numerous metal-based nanoparticles (NPs) have been created to overcome these limitations, demonstrating encouraging possibilities in the treatment of CVDs due to advancements in nanotechnology. Metallic nanomaterials, including gold, silver, and iron, come in various shapes, sizes, and geometries. Metallic NPs are generally smaller and have more specialized physical, chemical, and biological properties. Metal-based NPs may come in various forms, such as nanoshells, nanorods, and nanospheres, and they have been studied the most. Massive potential applications for these metal nanomaterial structures include supporting molecular imaging, serving as drug delivery systems, enhancing radiation-based anticancer therapy, supplying photothermal transforming effects for thermal therapy, and being compounds with bactericidal, fungicidal, and antiviral qualities that may be helpful for cardiovascular diseases. In this context, the present paper aims to review the applications of relevant metal and metal oxide nanoparticles in CVDs, creating an up-to-date framework that aids researchers in developing more efficient treatment strategies.

show abstract

Green synthesis of oxidized starch with a novel catalyst based on Fe3O4 nanoparticles and H2O2 reagent to form thermoplastic as a stable gel coating on the cardiovascular stents

Cited by 12 publications

References 38 publications

One-Step Synthesis of Starch-Based Composite Chrome-Free Tanning Agents via In Situ Catalysis Using Hydrotalcites

One-Step Synthesis of Starch-Based Composite Chrome-Free Tanning Agents via In Situ Catalysis Using Hydrotalcites

Green synthesis of carbon dots for sensing of heavy metal ions: Bibliometric analysis from 2003-2024

Metal-Based Nanoparticles for Cardiovascular Diseases

Contact Info

Product

Resources

About