Physicochemical characterization of biopolymer-based metal nanoparticles

Nasrollahzadeh, Mahmoud; Shafiei, Nasrin; Soleimani, Fahimeh; Nezafat, Zahra; Bidgoli, Nayyereh Sadat Soheili

doi:10.1016/b978-0-12-822108-2.00017-x

Cited by 4 publications

(3 citation statements)

References 299 publications

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“…Generally, the surface charge of nanoparticles is measured through a zeta potentiometer by applying a voltage to the samples. The results are given in terms of zeta potential ζ, which refers to the difference in the electric potential between the particle surrounding stationary charge layers and the potential of the solution [94][95][96][97]. Zeta potential values higher than +15 mV and lower than −15 mV are usually attributed to colloidally stable suspensions, as they generate electrostatic repulsions that are strong enough to counteract aggregation of the nanoparticles [82,84,85].…”

Section: Advanced Iron Oxide Nanoparticles Characterization Techniquesmentioning

confidence: 99%

New Approaches in Synthesis and Characterization Methods of Iron Oxide Nanoparticles

Chircov¹,

Vasile²

2022

Iron Oxide Nanoparticles

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Recent years have witnessed an extensive application of iron oxide nanoparticles within a wide variety of fields, including drug delivery, hyperthermia, biosensing, theranostics, and cell and molecular separation. Consequently, synthesis and characterization methods have continuously evolved to provide the possibility for controlling the physico-chemical and biological properties of the nanoparticles to better suit the envisaged applications. In this manner, this chapter aims to provide an extensive overview of the most recent progress made within the processes of iron oxide nanoparticle synthesis and characterization. Thus, the chapter will focus on novel and advanced approaches reported in the literature for obtaining standardized nanoparticles with controllable properties and effects. Specifically, it will emphasize the most recent progress made within the microwave-assisted, microfluidics, and green synthesis methods, as they have shown higher capacities of controlling the outcome nanoparticle properties.

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Section: Advanced Iron Oxide Nanoparticles Characterization Techniquesmentioning

confidence: 99%

New Approaches in Synthesis and Characterization Methods of Iron Oxide Nanoparticles

Chircov¹,

Vasile²

2022

Iron Oxide Nanoparticles

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“…Chitosan is a linear polysaccharide that occurs naturally in certain fungi (Mucoraceae) , but it can be synthesized from chitin deacetylation in alkaline media. [ 26 ] After cellulose, chitin is the second most abundant natural polymer on Earth, [ 27 ] and this biopolymer is present in the exoskeleton of mollusks and insects (e.g., shrimps and crabs) or the cell walls of fungi. [ 28 ] Chitin and chitosan are copolymers made up of units of 2‐acetamido‐2‐deoxy‐D‐glucose and 2‐amino‐2‐deoxy‐D‐glucose units linked to β‐1,4‐glycosidic linkages.…”

Section: Carbohydrates Explored For Nanomaterials Productionmentioning

confidence: 99%

Carbohydrate Nanomaterials Addition to Starch‐Based Packaging: A Review about Fundamentals and Application

et al. 2021

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Starch‐based packaging has been explored as an alternative to conventional plastics. However, the former material shows a poorer performance when compared with the latter. Carbohydrate nanomaterials addition has proved to be promising to solve this issue, improving mechanical and barrier properties. The use of carbohydrates nanomaterials has many advantages since the raw material is highly available in nature, obtained from renewable, low‐cost, and non‐toxic sources. This review shows the different methods of producing nanomaterials from the main carbohydrate sources, cellulose, chitosan, and starch. The study begins the approach with the most conventional method, acid hydrolysis, proceeding with the methods explored on a smaller scale such as enzymatic hydrolysis, oxidation, ultrasound, and electrospinning. Besides, the study shows works involving the production of starch‐based nanocomposites and discussions about the improvement of its properties promoted by the addition of these nanomaterials. Works in the literature have shown starch‐based nanocomposites with higher crystallinity, transparency, thermal stability, reinforcement, oxygen barrier, lower water absorption, and even anti‐microbial activity, making them suitable for packaging. Finally, the future perspectives of this research field are shown and discussed .

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“…[ 8 ] These resources can decrease the utilization of nonrenewable materials and minimize the environmental pollution commonly caused by synthetic resources. [ 9 ] Polysaccharides are therefore good candidates to be incorporated in biomimetic systems thanks to their wide availability of outstanding properties which include biodegradability and biocompatibility. Herein, we aim to offer an overview of the most relevant biomimetic systems based on polysaccharides that were reported in the literature, highlighting the most relevant challenges that need to be faced in the next future.…”

Section: Introductionmentioning

confidence: 99%

Biomimetic Biomaterials Based on Polysaccharides: Recent Progress and Future Perspectives

Silva

Carvalho

Moraes

et al. 2022

Macro Chemistry & Physics

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Nature is a source of diverse materials, including polysaccharides, which have been used to improve the quality of life. Besides being abundant and renewable, polysaccharides possess many advantages, such as biodegradability and biocompatibility, which allow them to be applied in different fields. They can be used in the design and development of renewable materials, thus contributing to a more sustainable society. Because of their advantages and versatility, polysaccharides may be incorporated in many systems, particularly biomimetic ones, to create outstanding sustainable solutions to problems that still need to be solved. Hence, nature not only offers resources but an inspiration to overcome issues. In this sense, this work aims to present an overview of current relevant biomimetic systems based on polysaccharides. Chitosan, cellulose, xanthan gum, alginates, pullulan, hyaluronic acid, schizophyllan, and oligomeric cyclodextrins are covered. The application of these polysaccharides in the design of biosensors, systems for environmental remediation, structural materials, drug delivery systems, tissue engineering among others is described. Finally, the challenges that still need to be faced and opportunities of application of these materials for the development of bioinspired technologies in the next future are highlighted.

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Physicochemical characterization of biopolymer-based metal nanoparticles

Cited by 4 publications

References 299 publications

New Approaches in Synthesis and Characterization Methods of Iron Oxide Nanoparticles

New Approaches in Synthesis and Characterization Methods of Iron Oxide Nanoparticles

Carbohydrate Nanomaterials Addition to Starch‐Based Packaging: A Review about Fundamentals and Application

Biomimetic Biomaterials Based on Polysaccharides: Recent Progress and Future Perspectives

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