PMC

FTIR transmission spectra of (a) activated carbon prepared with 0.5 : 1 impregnation ratio and activated at 500°C, (b) activated carbon prepared with 1.0 : 1 impregnation ratio and activated at 500°C, (c) activated carbon prepared with 1.5 : 1 impregnation ratio and activated at 500°C, (d) activated carbon prepared with 0.5 : 1 impregnation ratio and activated at 600°C, (e) activated carbon prepared with 1.0 : 1 impregnation ratio and activated at 600°C, (f) activated carbon prepared with 1.5 : 1 impregnation ratio and activated at 600°C, (g) activated carbon prepared with 0.5 : 1 impregnation ratio and activated at 700°C, (h) activated carbon prepared with 1.0 : 1 impregnation ratio and activated at 700°C, and (i) activated carbon prepared with 1.5 : 1 impregnation ratio and activated at 700°C.

(a) Representative stress–strain curves for ACCs made with different impregnation times; (b) tensile strength and Young’s modulus of flax-based ACCs as a function of impregnation time; (c) density values of ACCs as a function of impregnation time; and (d) specific strength and specific modulus of flax-based ACCs as a function of impregnation time.

Impregnation of thin tissue (100um) using our Golgi-Cox method produces suboptimal impregnation of neuronal elements, with abundant artifact related to the compromised integrity of brain tissue that occurs during processing; AC) cortex, D–F) striatum. Note the lack of prototypical layering of neurons generally present in Golgi impregnated cortical regions. The striatum shows exceptionally sparse impregnation of neurons. Scale for A and D=500um; B and E=100 um; C and F=20 um.

Impregnation efficiency of polyesters with extracts of Cistus and walnut husk. Scheme of the combined process of extraction of plant materials and impregnation of polymers—Phase 1: extraction of phytochemicals from Cistus and walnut husk, Phase 2: impregnation of PLA and PHA with plant compounds from extracts.