NOVELTY - Treating (M1) biomass, involves combining an amount of biomass containing crystalline structures with an amount of fluid; and nanomixing the biomass and the fluid in a processing chamber to form a biomass slurry, where the nanomixing degrades the crystalline structures and opens up pores in the crystalline structures.    USE - For treating biomass, particularly corn stover for forming biofuel (claimed), chemicals and pulp.    ADVANTAGE - The method is continuous, fast, and efficient; provides cost-effective breakdown which enhances enzymatic accessibility to lignocellulosic materials; reduces duration and operating temperature of treatment as compared to the duration required in multi-step processes; is improved as compared to conventional pretreatment methods; is one-step process, has improved properties (as compared to biomass pretreated in a conventional multi-step manner) including, i.e. improved enzyme accessibility for producing biofuels and higher purity chemicals and pulp; and reduces use of starting material.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) a product made according to the method (M1);    (2) forming (M2) a biofuel involving combining an amount of biomass containing crystalline structures with an amount of fluid; nanomixing the biomass and the fluid in a processing chamber to form a biomass slurry, where nanomixing degrades the crystalline structures and opens up pores in the crystalline structures; forming glucose from the biomass slurry; and fermenting the glucose to produce a biofuel; and    (3) a biomass treatment device, comprising a processing chamber; a nanomixer turbine located within the processing chamber; a continuous flow inlet port coupled to the processing chamber, adjacent to the nanomixer turbine; a continuous flow outlet port coupled to the processing chamber, spaced laterally away from the nanomixer turbine; a source of fluid configured for continuous introduction to the processing chamber; a source of biomass configured for introduction at the continuous flow inlet port; and an inline fermenting device to further process material from the continuous flow outlet port.