State Key Lab of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao, 066004, China; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA
Qinglin Wu
School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, LA, 70803, USA
Weiguo Li
College of Aerospace Engineering, Chongqing University, Chongqing, 400044, China
Ioan Negulescu
Department of Textiles, Apparel Design and Merchandising, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA
As an environmentally friendly and sustainable nanoparticle stabilizer of Pickering emulsions, cellulose nanocrystal (CNC) has attracted attention because of its sustainable and biodegradable characteristics. Despite its distinct amphiphilic character as an ideal nanomaterial to replace traditionally non-sustainable surfactant emulsifiers, its long-term stability and lack of responses from external stimuli [e.g., pH, temperature, and carbon dioxide (CO2)] are the critical issues to be addressed. The solutions for all of these questions in terms of CNCs and its responsive Pickering emulsions are systemically discussed in this review.