Design principles for self-assembling devices from macromolecules -- Metalloprotein-based electronic nanodevices -- Mechanical consequences of biomolecular gradients in byssal threads -- Bacteriorhodopsin-based 3D optical memory -- Spider silk production -- A projection display based on a bacteriorhodopsin thin film -- The role of collagen in energy storage and dissipation in extracellular matrix -- Enhancement of protein thermal stability: toward the design of robust proteins for bionanotechnological applications -- Deciphering engineering principles for the design of protein-based nanomachines -- Bioprocessing of silk proteins-controlling assembly -- Nanobiotechnology enables new opportunities in material sciences: bacteriorhodopsin as a first exampple -- Synthetic photorefractive and photochromic materials and their comparison with bacteriorhodopsin mutants for optical information processing -- Submonolayer measurements of adsorbed proteins in microfluidic channels -- Programs of the european commission on organic materials for the electronics industry -- Biodiversity: an archive of opportunity for nanodevices. Bionanotechnology is the key integrative technology of the 21st century and aims to use the knowledge, gathered from the natural construction of cellular systems, for the advancement of science and engineering. Investigating the topology and communication processes of cell parts can lead to invention of novel biological devices with exciting applications. Though microscale to nanoscale research offers an excellent space for the development of futuristic technologies, a number of challenges must be overcome. Due to paucity of a dedicated literature on the protein based nanodevices we bring you this monograph that combines collective research works of scientists probing into this fascinating universe of bionanotechnology. The monograph has been written with an aim of surveying engineering design principles of biomolecular nanodevices, prototype nanodevices based on redox proteins, bacteriorhodopsins and natural fibers, and touching upon the future developments in the field.