Recent advances of characterization techniques for the formation, physical properties and stability of Pickering emulsion

• Published in: Advances in colloid and interface science Vol. 277; p. 102117
• Main Authors: Low, Liang Ee, Siva, Sangeetaprivya P., Ho, Yong Kuen, Chan, Eng Seng, Tey, Beng Ti
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.03.2020
• Subjects: Characterization; Formation; Mathematical correlation; Pickering emulsion; Properties; Stability; Pickering emulsion; gca; GTT; Across; ηc; ds; Characterization; Cs; Voil; FFT; CLSM; Stability; mp; Mathematical correlation; ϕd; ΔE; α; Vreleased; ρeff; re; ε; η; θ; SEM; d3,2; ϕp; Posmcr; rp; Us; HLB; LTFESEM; PDMS; ρc; ρd; τ; AFM; Rsphere; Properties; ρp; dset; Rdisc; o/w; w/o; Zp; γOW; φa; a; d; CI; g; h; STEP; l; n; q; Cryo-SEM; s; NIR; w; d4,3; Vtotal; ρpd; Formation
• ISSN: 0001-8686; 1873-3727
• DOI: 10.1016/j.cis.2020.102117

Recently, there have been increasing demand for the application of Pickering emulsions in various industries due to its combined advantage in terms of cost, quality and sustainability. This review aims to provide a complete overview of the available methodology for the physical characterization of emulsions that are stabilized by solid particles (known as Pickering emulsion). Current approaches and techniques for the analysis of the formation and properties of the Pickering emulsion were outlined along with the expected results of these methods on the emulsions. Besides, the application of modelling techniques has also been elaborated for the effective characterization of Pickering emulsions. Additionally, approaches to assess the stability of Pickering emulsions against physical deformation such as coalescence and gravitational separation were reviewed. Potential future developments of these characterization techniques were also briefly discussed. This review can act as a guide to researchers to better understand the standard procedures of Pickering emulsion assessment and the advanced methods available to date to study these emulsions, down to the minute details. [Display omitted] •Latest Pickering emulsion measurement (analytical) methods are reviewed.•Potential of innovative approaches for pickering emulsion characterization are discussed•Mathematical correlations on Pickering emulsions analysis are described.•Challenges and opportunities for future research are addressed.