Polylactic acid is proving to be a viable alternative to petrochemical-based plastics for many applications It is produced from renewable resources and is biodegradable, decomposing to give H2O, CO2, and humus, the black material in soil In addition, it has unique physical properties that make it useful in diverse applications including paper coating, fibers, films, and packaging (see Figure)

Polylactic Acid Technology

The manufacturing techniques of various drug loaded biodegradable poly(lactide-co-glycolide) (PLGA) devices.

Lignocellulosic biomass pyrolysis mechanism: A state-of-the-art review

Mucus-penetrating nanoparticles for drug and gene delivery to mucosal tissues.

On the importance and mechanisms of burst release in matrix-controlled drug delivery systems

Many solid-state kinetic models have been developed in the past century. Some models were based on mechanistic grounds while others lacked theoretical justification and some were theoretically incorrect. Models currently used in solid-state kinetic studies are classified according to their mechanistic basis as nucleation, geometrical contraction, diffusion, and reaction order. This work summarizes commonly employed models and presents their mathematical development.

Solid-State Kinetic Models: Basics and Mathematical Fundamentals

Drug transfer through mucus.

Basics and Applications of Solid-State Kinetics: A Pharmaceutical Perspective

Role of isoconversional methods in varying activation energies of solid-state kinetics: II. Nonisothermal kinetic studies

Solid‐State Kinetic Models: Basics and Mathematical Fundamentals

Douglas R. Flanagan

Papers

Solid-State Kinetic Models: Basics and Mathematical Fundamentals

Drug transfer through mucus.

Basics and Applications of Solid-State Kinetics: A Pharmaceutical Perspective

Role of isoconversional methods in varying activation energies of solid-state kinetics: II. Nonisothermal kinetic studies

Solid‐State Kinetic Models: Basics and Mathematical Fundamentals