Application of small-angle x-ray scattering and small-angle neutron scattering to fat mimetics
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Date
2023-05-06
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John Wiley & Sons, Ltd.
Abstract
Small-angle and ultra-small angle scattering are powerful techniques that are able to reveal structure on the nanometre to micron length scales. These methods are naturally complementary to other materials characterisation approaches including various microscopies but with the advantage that minimal sample preparation is required enabling measurement of materials to be conducted in their native state. Due to the length scales probed, these methods have considerable application in the study of oleogels where the nano- and micro-structures formed directly impact macroscopic gel properties. This chapter describes small-angle and ultra-small angle scattering techniques and the detailed information that can be obtained from their application with a particular focus on oleogels. The chapter describes the fundamentals of the method, instrumentation, experimental design and data collection, as well as the rich information that can be extracted from a well-designed experiment. Differences between X-ray and neutron probes for small-angle scattering are also discussed and, relevant to the latter, the benefits of selective deuteration and contrast variation are highlighted. This is followed by a lengthy discussion of specific recent examples covering the wide range of oleogel systems. The chapter concludes with some suggestions for future opportunities in the application of these methods. © 2023 John Wiley & Sons, Inc.
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Keywords
Small angle scattering, Microstructure, Gels, Experiment design, Data, Neutron probes, Fats
Citation
Gilbert, E. P. (2023). Application of small-angle x-ray scattering and small-angle neutron scattering to fat mimetics. In Cerqueira, M. Â. P. R, & Castro, L. M. P. (Eds.). Fat Mimetics for Food Applications (pp. 214-244). Hoboken, NJ: John Wiley & Sons. doi:10.1002/9781119780045.ch11