There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

Hydrogels for tissue engineering.

https://yunus.hacettepe.edu.tr/~damlacetin/kmu407/index_dosyalar/4.%20makale.pdf

Biodegradable polymers as biomaterials

Hydrogels in pharmaceutical formulations.

Lithium (Li) metal is an ideal anode material for rechargeable batteries due to its extremely high theoretical specific capacity (3860 mA h g−1), low density (0.59 g cm−3) and the lowest negative electrochemical potential (−3.040 V vs. the standard hydrogen electrode). Unfortunately, uncontrollable dendritic Li growth and limited Coulombic efficiency during Li deposition/stripping inherent in these batteries have prevented their practical applications over the past 40 years. With the emergence of post-Li-ion batteries, safe and efficient operation of Li metal anodes has become an enabling technology which may determine the fate of several promising candidates for the next generation energy storage systems, including rechargeable Li–air batteries, Li–S batteries, and Li metal batteries which utilize intercalation compounds as cathodes. In this paper, various factors that affect the morphology and Coulombic efficiency of Li metal anodes have been analyzed. Technologies utilized to characterize the morphology of Li deposition and the results obtained by modelling of Li dendrite growth have also been reviewed. Finally, recent development and urgent need in this field are discussed.

Lithium metal anodes for rechargeable batteries

: Polyphosphazenes are among the most versatile of all polymers. This is a consequence of the unique properties of the phosphorus-nitrogen backbone and the ease with which a wide range of different side groups can be introduced mainly by macromolecular substitution, but also by the polymerization of different monomers . This field has reached a stage where the fundamental chemistry now allows the design and synthesis of a broad range of new materials that are valuable for properties such as elasticity, high refractive index, liquid crystallinity, ferroelectric-, NLO-, and photochromic attributes, and for uses as solid ionic conductors, biomedical microencapsulation polymers, and materials with controlled surface properties. Polymers, Phosphazenes, Synthesis, Property, Structure.

Macromolecular and Materials Design Using Polyphosphazenes

Biodegradable composites and methods for the replacement of bone are described. The composites are made up of a polyphosphazene and an osteoconductive material. The composites are free flowing upon mixing and then later set under physiological tempertures. Methods for using the composites for fusing vertebrae during spinal fusion procedures are also described.

Harry R. Allcock

Papers

Macromolecular and Materials Design Using Polyphosphazenes

Injectable physiological temperature setting cement composites for spinal fusion and related method thereof

Quaternized Cyclic and High Polymeric Phosphazenes and Their Interactions with Tetracyanoquinodimethane.

A behavioural difference between an iron(II) grafted polyphosphazene and its small molecule cyclophosphazene analogue

Synthesis and characterization of pH-responsive poly(organophosphazene) hydrogels