Nanomaterial Crystal Size Analysis

Crystal sizes were determined using atomic force microscopy (AFM: Park NX10, Seoul, Korea), applying the no contact method and using an aluminum-coated silicone tip PPP-FMR (Nanosensors, PointProbe, Neuchatel, Switzerland) with a resonance frequency of 286–362 kHz and a spring constant of 20–80 N m⁻¹. Samples of 0.5 × 0.5 cm were analyzed, and three 5 × 5 μm areas were scanned at a speed of 1 Hz with a resolution of 256 × 256 pixels [47 (link)]. A particle size of 20 particles was determined for each area of 5 μm × 5 μm, and the measurements were made on 5 different films and at 3 different areas of each one.

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Escamilla-García M., García-García M.C., Gracida J., Hernández-Hernández H.M., Granados-Arvizu J.Á., Di Pierro P, & Regalado-González C. (2022). Properties and Biodegradability of Films Based on Cellulose and Cellulose Nanocrystals from Corn Cob in Mixture with Chitosan. International Journal of Molecular Sciences, 23(18), 10560.

Publication 2022

PPP-FMR

Aluminum Atomic force microscopy Resonance Silicone

Corresponding Organization : Autonomous University of Queretaro

Other organizations : Secretaría de Salud de Jalisco, Consejo Nacional de Humanidades, Ciencias y Tecnologías, University of Naples Federico II

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Variable analysis

independent variables

None explicitly mentioned

dependent variables

Crystal sizes

control variables

Atomic force microscopy (AFM) technique with Park NX10 instrument
No contact method
Aluminum-coated silicone tip PPP-FMR with resonance frequency of 286–362 kHz and spring constant of 20–80 N m^-1
Sample size of 0.5 × 0.5 cm
Scanning area of 5 × 5 μm at a speed of 1 Hz with a resolution of 256 × 256 pixels
Measurements made on 5 different films and at 3 different areas of each one

controls

No positive or negative controls were explicitly mentioned in the provided information.

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