Biomimetic synthesis of chiral erbium-doped silver/peptide/silica core-shell nanoparticles (ESPN)

Mantion, Alexandre; Graf, Philipp; Florea, Ileana; Haase, Andrea; Thünemann, Andreas F.; Mašić, Admir; Ersen, Ovidiu; Rabu, Pierre; Meier, Wolfgang; Luch, Andreas; Taubert, Andreas

doi:10.1039/c1nr10930h

Cited by 12 publications

(8 citation statements)

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“…The main challenge is to help to the design by chemical pathways of new multifunctional nanomaterials providing opportunities, for example, in the field of sensors or imaging. [46,[150][151][152][153][154][155] Thus, inorganic, supramolecular or biomimetic systems were inserted within lamellar hybrid based hydroxides. [46,153,[156][157][158][159] Here it is important to evaluate the effect of confinement on the structure or properties of the inserted compounds, and their sensitivity to external stimuli.…”

Section: Structuring and Functionalization Of Solidmentioning

confidence: 99%

Hybrid interfaces in layered hydroxides: magnetic and multifunctional superstructures by design

Rabu¹,

Delahaye²,

Rogez³

2015

Nanotechnology Reviews

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The hybridization of simple transition metal hydroxides provides prototypical examples of layered magnetic and bifunctional hybrid materials in which the influence of the hybrid interface on the behavior of multiproperty systems can be evaluated. AbstractThis article is a critical review on layered hybrid organic-inorganic functional structures. We specially discuss series of results concerning the design of magnetic and multiproperty systems derived from hybridization of layered transition metal hydroxides. Series of hybrid materials showing original magnetic properties are reviewed, which were prepared by functionalization of layered simple hydroxides (LSH) of general formula M 2 (OH) 3 A (M = Co, Cu, Ni, Zn, ... and A = NO 3 -, OAc -, alkylcarboxylates, peptides, metal complexes...). To make the point on this vast family of hybrid compounds, we present first the work investigating the mechanism of interaction and the structural factors influencing the magnetic properties of hybrid materials based on LSH. Then we detail how even more complex anions can be immobilized and grafted into the interlamellar space giving rise to new functionalities. These systems are very good models for understanding the correlations between the structure of hybrid systems and the physical properties brought by the inorganic host and by the molecular moieties grafted onto the inorganic metal network. The interface between the organic and inorganic components, i.e. chemical bonding, charge density, or local pressure, is essential for the control of the properties of multifunctional hybrid systems. Some conclusions are drawn on the future of this approach, useful for developing new two-dimensional functional systems.

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Section: Structuring and Functionalization Of Solidmentioning

confidence: 99%

Hybrid interfaces in layered hydroxides: magnetic and multifunctional superstructures by design

Rabu¹,

Delahaye²,

Rogez³

2015

Nanotechnology Reviews

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“…These particles offer several advantages in terms of narrow size distribution and defined shape. In addition, further modifications of these SNP are possible to obtain more complex coreshell type nanoparticles Mantion et al 2011). The particles can be easily obtained in a reproducible way and also in large quantities.…”

Section: Introductionmentioning

confidence: 99%

A novel type of silver nanoparticles and their advantages in toxicity testing in cell culture systems

et al. 2012

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Silver nanoparticles (SNPs) are among the most commercialized nanoparticles worldwide. Often SNP are used because of their antibacterial properties. Besides that they possess unique optic and catalytic features, making them highly interesting for the creation of novel and advanced functional materials. Despite its widespread use only little data exist in terms of possible adverse effects of SNP on human health. Conventional synthesis routes usually yield products of varying quality and property. It thus may become puzzling to compare biological data from different studies due to the great variety in sizes, coatings or shapes of the particles applied. Here, we applied a novel synthesis approach to obtain SNP of well-defined colloidal and structural properties. Being stabilized by a covalently linked small peptide, these particles are nicely homogenous, with narrow size distribution, and form monodisperse suspensions in aqueous solutions. We applied these peptide-coated SNP in two different sizes of 20 or 40 nm (Ag20Pep and Ag40Pep) and analyzed responses of THP-1-derived human macrophages while being exposed against these particles. Gold nanoparticles of similar size and coating (Au20Pep) were used for comparison. The cytotoxicity of particles was assessed by WST-1 and LDH assays, and the uptake into the cells was confirmed via transmission electron microscopy. In summary, our data demonstrate that this novel type of SNP is well suited to serve as model system for nanoparticles to be tested in toxicological studies in vitro.

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“…They could further show that the obtained peptide-coated AgNPs can be coated with a silica shell retaining the chiral information carried by the coated AgNPs 149 and that the incorporation of erbium into this shell leads to the formation of paramagnetic and chiral AgNPs. 150 Recently, Upert et al 151 reported the use of oligoprolines as scaffolds for the size-controlled formation of AgNPs with the diameter of the AgNPs correlating with the length of the aldehyde-functionalized helical peptides. The aldehyde functions are used in a Tollens reaction to reduce the silver ions to AgNPs that are stabilized by the resulting carboxylic acids.…”

Section: 137mentioning

confidence: 99%

Nanobio Silver: Its Interactions with Peptides and Bacteria, and Its Uses in Medicine

et al. 2013

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Introduction 4708 2. Peptides and Silver 4709 2.1. Silver Binding to Amino Acids and Peptides 4709 2.1.1. Silver Binding to Amino Acids − Theory 4709 2.1.2. Silver Binding to Amino Acids − Experiment 4711 2.1.3. Silver Binding to Peptides 4711 2.2. Natural Peptides Involved in Metal Detoxification 4714 2.3. Peptides for the Formation of Silver Nanostructures 4716 2.3.1. Biomineralization of Silver by Means of Peptides 4716 2.3.2. Peptides as Structure-Determining Scaffolds in the Synthesis of Silver Nanostructures 4721 3. Bacteria and Silver 4722 3.1. Antimicrobial Properties of Silver-Containing Compounds 4722 3.1.1. Interactions with the Bacterial Cell Wall 4722 3.1.2. Interactions with DNA, Enzymes, and Membrane Proteins 4724 3.1.3. Generation of Reactive Oxygen Species 4725 3.2. Bacterial Resistance Mechanisms against Ag(I) 4726 3.2.1. Accumulation and Storage-Based Mechanism 4726 3.2.2. Efflux Pump-Based Mechanism 4727 3.3. Synthesis of Silver Nanoparticles by Means of Bacteria 4728 4. Silver-Based Biomaterials in the Medical Field 4730 4.1. Types of Silver-Containing Biomaterials 4731 4.1.1. Metallic Silver Coatings and Silver's Antimicrobial Efficiency 4731 4.1.2. Silver-Containing Nanocomposites 4732 4.1.3. Silver-Containing Polymers 4732 4.1.4. Surface Modification with Ionic Silver Compounds 4734 4.1.5. Hybrid Silver Materials − Synergistic Effects 4734 4.2. Deposition Processes 4735 4.3. Mechanical Properties 4736 5. Biocompatibility of Silver 4737 5.1. General Routes of Silver Exposure 4737 5.2. Exposure to Silver-Containing Medical Products 4737 5.2.1. Dermal Contact: Burn Wound Dressings 4737 5.2.2. Bone Contact: Orthopedic and Dental Implants and Bone-Filling Products 4738 5.2.3. Blood Contact: Implants Introduced into the Vascular System 4739 5.3. Effects of Silver Exposure on Tissues and Organs 4739 5.3.1. Acute and Chronic Toxicity of Silver 4740 5.3.2. Tissue and Organ Damages 4740 5.3.3. Cellular Uptake of Silver 4741 5.4. Toxic Effects of Silver Nanoparticles 4741 5.5. Silver Detoxification 4742 5.5.1. Sequestration of Silver Ions 4742 5.5.2. Silver Ion Transport by ATPase P-type Efflux Pumps 4743 6. Conflicting Evidence 4744 7. Conclusions 4744 Author Information 4744 Corresponding Author 4744 Notes 4744 Biographies 4745 Acknowledgments 4746 References 4746

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Biomimetic synthesis of chiral erbium-doped silver/peptide/silica core-shell nanoparticles (ESPN)

Cited by 12 publications

References 105 publications

Hybrid interfaces in layered hydroxides: magnetic and multifunctional superstructures by design

Hybrid interfaces in layered hydroxides: magnetic and multifunctional superstructures by design

A novel type of silver nanoparticles and their advantages in toxicity testing in cell culture systems

Nanobio Silver: Its Interactions with Peptides and Bacteria, and Its Uses in Medicine

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