Adam Shearer

• Pennsylvania State University

Topological constraint theory has enabled the successful prediction of glass properties over a wide range of compositions. In this study, a topological constraint model is constructed for alkaline earth vanadate glasses based on experimental data. The change in vanadate structural units from VO5 to VO4 was modeled as a function of alkaline earth co...

Glasses formed from transition metal oxides have shown tailorable electrical and optical properties depending on the valence state and individual element. Vanadate glasses have received specific attention for their high conductivities as compared to most glass families. In this study, the frequency‐dependent capacitance and direct current (dc) cond...

Topological constraint theory has emerged as a rapid, predictive method to quantify the relationship between structural rigidity and glass properties. Understanding the structure of telluro‐vanadate (TeO 2 –V 2 O 5 ) glasses has remained difficult owing to their complex mixture of structural units. Here, we propose a topological model that accurate...

Alkali and alkaline earth elements play a crucial role in the structure, processing, and properties of bioactive glasses, widely used in medical applications since their inception in 1969.

This article reviews promising studies on the design, manufacturing, microstructure, properties, and applications of glass-ceramics containing ZrO2 and relevant glass-ceramic matrix composites. After the addition of ZrO2 to a glass-ceramic composition, it can persist in the residual glassy phase, facilitate nucleation, and/or precipitate as ZrO2 or...

Both unwanted and induced crystallization can impact bioactivity, physical and mechanical properties of bioactive glasses (BGs). Uncontrolled crystallization has negative consequences, rendering BGs unreliable. However, by manipulating the type, size, shape, and quantity of crystals in BGs, plenty of opportunities arise for controlling, for example...

Bioactive glasses (BGs) are known for their selective ability to (i) form a mechanically strong interfacial bond with hard (bone) or soft tissues (gingivae or cartilages) (i.e., silica-, silica-phosphate-, phosphate-, borate-phosphate-, or silica-phosphate-borate-based BGs); or (ii) serve as reservoirs for fast-release of therapeutic (osteogenic, a...

There is a growing demand for high-performance infrared (IR) materials with longer wavelength optical transmission, higher mechanical strength, and increased thermal stability. Although crystalline materials, namely transparent ceramics, have shown suitable optical properties, they are difficult and expensive to produce, making glasses more attract...

Bioactive glasses (BGs) and glass-ceramics (BGCs) have become a diverse family of materials being applied for treatment of many medical conditions. The traditional understanding of bioactive glasses and glass-ceramics pins them to bone-bonding capability without considering the other fields where they excel, such as soft tissue repair. We attempt t...

At least 25 bioactive glass (BG) medical devices have been approved for clinical use by global regulatory agencies. Diverse applications include monolithic implants, bone void fillers, dentin hypersensitivity agents, wound dressing, and cancer therapeutics. The morphology and delivery systems of bioactive glasses have evolved dramatically since the...

Nano-/micron-sized bioactive glass (BG) particles are attractive candidates for both soft and hard tissue engineering. They can chemically bond to the host tissues, enhance new tissue formation, activate cell proliferation, stimulate the genetic expression of proteins, and trigger unique anti-bacterial, anti-inflammatory, and anti-cancer functional...

Nano/micron-sized bioactive glass (BG) particles are attractive candidates for both soft and hard tissue engineering. They can chemically bond to the host tissues, enhance new tissue formation, activate cell proliferation, stimulate the genetic expression of proteins, and trigger unique an-ti-bacterial, anti-inflammatory, and anti-cancer functional...

Bioactive glasses (BGs) and glass-ceramics (BGCs) have become a diverse family of materials being applied for treatment of many medical conditions. The traditional understanding of bioactive glasses and glass-ceramics pins them to bone-bonding capability without considering the other fields where they excel, such as soft tissue repair. We attempt t...