Properties of bulk metallic glasses

Louzguine-Luzgin, Dmitri V.; Polkin, V. I.

doi:10.3103/s1067821217010084

Cited by 17 publications

(5 citation statements)

References 118 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The advantages of MGs for biomedical application include corrosion resistance, [ 57 ] antibacterial properties, [ 58 ] biocompatibility, and biodegradability. [ 59 ] However, their conductivity is inferior to crystalline metals, [ 60 ] and hence have seldom been used as biosensors. It is worth acknowledging that MGs are 3D printable, [ 61 ] and that they can be thermoplastically deformed at the nanolevel.…”

Section: Materials Selection For Ec Biosensor Electrode Transducersmentioning

confidence: 99%

Additive Manufacturable Materials for Electrochemical Biosensor Electrodes

Elbadawi

Ong

Pollard

et al. 2020

Adv Funct Materials

View full text Add to dashboard Cite

With the impending Industrial Revolution 4.0, the information produced by sensors will be central in many applications. This includes the healthcare sector, where affordable healthcare and precision medicine are highly sought after. Electrochemical sensors have the potential to produce affordable, high sensitivity and specificity, intuitive, and rapid point‐of‐care diagnostics. Underpinning these achievements is the choice of material and the fabrication thereof. In this review, the different types of materials used in electrochemical biosensors are reported, with a focus on synthetic conductive materials. The review demonstrates that there is an abundance of materials to select from, and compositing different types of materials further widens their applicability in biosensors. In addition, the fabrication of such materials using the state‐of‐the‐art of fabrication technology, additive manufacturing (AM), is also detailed. The need for compositing is evident in AM, as the feedstock for certain AM technologies is inherently nonconductive. Both material choice and fabrication technologies limitations are also discussed to highlight opportunities for growth. The review highlights how recent technological advancements have the potential to drive the healthcare industry toward achieving its primary goals.

show abstract

Section: Materials Selection For Ec Biosensor Electrode Transducersmentioning

confidence: 99%

Additive Manufacturable Materials for Electrochemical Biosensor Electrodes

Elbadawi

Ong

Pollard

et al. 2020

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…Amorphous metal alloys are the promising materials for the automotive, aerospace, energy, electronics and medical technology industries [1][2][3][4]. High corrosion resistance, high magnetic permeability, superior mechanical strength, high fracture toughness, high elastic strain limit and high formability are just some of the unique set of properties that make amorphous metal alloys widely applicable [5][6][7]. Such a combination of properties is directly due to the absence of structural order accompanied by defects, which is typical for crystalline analogues [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Neural Network as a Tool for Design of Amorphous Metal Alloys with Desired Elastoplastic Properties

Galimzyanov

Doronina

Мокшин

2023

Metals

View full text Add to dashboard Cite

The development and implementation of the methods for designing amorphous metal alloys with desired mechanical properties is one of the most promising areas of modern materials science. Here, the machine learning methods appear to be a suitable complement to empirical methods related to the synthesis and testing of amorphous alloys of various compositions. In the present work, it is proposed a method to determine amorphous metal alloys with mechanical properties closest to those required. More than 50,000 amorphous alloys of different compositions have been considered, and the Young’s modulus E and the yield strength σy have been evaluated for them by the machine learning model trained on the fundamental physical properties of the chemical elements. Statistical treatment of the obtained results reveals that the fundamental physical properties of the chemical element with the largest mass fraction are the most significant factors, whose values correlate with the values of the mechanical properties of the alloys, in which this element is involved. It is shown that the values of the Young’s modulus E and the yield strength σy are higher for amorphous alloys based on Cr, Fe, Co, Ni, Nb, Mo and W formed by the addition of semimetals (e.g., Be, B, Al, Sn), nonmetals (e.g., Si and P) and lanthanides (e.g., La and Gd) than for alloys of other compositions. Increasing the number of components in alloy from 2 to 7 and changing the mass fraction of chemical elements has no significantly impact on the strength characteristics E and σy. Amorphous metal alloys with the most improved mechanical properties have been identified. In particular, such extremely high-strength alloys include Cr80B20 (among binary), Mo60B20W20 (among ternary) and Cr40B20Nb10Pd10Ta10Si10 (among multicomponent).

show abstract

“…Conductive polymers such as polyaniline, poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), and polypyrrole (Ppy) are also available, and they have the advantages of conductivity and biocompatibility. Gold is a good electrode material standard because it has a high conductivity of 4.11 × 10 7 S/m at 20 °C and is biocompatible , with a high corrosion resistance. , Also, gold can formulate self-assembled monolayers (SAMs) via thiol-gold bonds, so the biological components are easily immobilized on the electrode surface …”

Section: Introductionmentioning

confidence: 99%

Regenerative Strategy of Gold Electrodes for Long-Term Reuse of Electrochemical Biosensors

Lee

Park

et al. 2022

ACS Omega

View full text Add to dashboard Cite

Gold is of considerable interest for electrochemical active surfaces because thiol-modified chemicals and biomolecules can be easily immobilized with a simple procedure. However, most gold surfaces are damaged with repetitive measurements, so they are difficult to reuse. Here we demonstrate a novel electrochemical cleaning method of gold surfaces to reuse electrodes with a simple protocol that is easy and nontoxic. This electrochemical cleaning consists of two steps by using different solutions. The 1st step is a cyclic voltammetry sweep using a very low concentration of sulfuric acid, and the 2nd step is a cyclic voltammetry sweep using potassium ferricyanide. Different cleaning methods were also considered for comparison. Consequently, after assembling and desorption of the cell and antigen, the changes in gold electrode performance, as immunosensor and cytosensor, were investigated by electrochemical impedance and cyclic voltammetry. It was found that repetitive measurement is possible until five times while maintaining the reproducibility. It is believed that this method is capable of enabling reuse of gold electrodes and can be used for long-term and accurate monitoring of biological effects, especially at a low cost.

show abstract

Properties of bulk metallic glasses

Cited by 17 publications

References 118 publications

Additive Manufacturable Materials for Electrochemical Biosensor Electrodes

Additive Manufacturable Materials for Electrochemical Biosensor Electrodes

Neural Network as a Tool for Design of Amorphous Metal Alloys with Desired Elastoplastic Properties

Regenerative Strategy of Gold Electrodes for Long-Term Reuse of Electrochemical Biosensors

Contact Info

Product

Resources

About