Pickering Emulsion Gels Based on Halloysite Nanotubes and Ionic Biopolymers: Properties and Cleaning Action on Marble Surface

2019 ◽  
Vol 2 (5) ◽  
pp. 3169-3176 ◽  
Author(s):  
Giuseppe Cavallaro ◽  
Stefana Milioto ◽  
Läysän Nigamatzyanova ◽  
Farida Akhatova ◽  
Rawil Fakhrullin ◽  
...  
Keyword(s):  
Pickering Emulsion ◽  
Halloysite Nanotubes ◽  
Marble Surface

Halloysite nanotubes as particulate emulsifier: Preparation of biocompatible drug-carrying PLGA microspheres based on pickering emulsion

2012 ◽  
Vol 125 (S1) ◽  
pp. E358-E368 ◽  
Author(s):  
Zengjiang Wei ◽  
Chaoyang Wang ◽  
Hao Liu ◽  
Shengwen Zou ◽  
Zhen Tong
Keyword(s):  
Pickering Emulsion ◽  
Halloysite Nanotubes ◽  
Plga Microspheres

scholarly journals Microemulsion Encapsulated into Halloysite Nanotubes and their Applications for Cleaning of a Marble Surface

2018 ◽  
Vol 8 (9) ◽  
pp. 1455 ◽  
Author(s):  
Giulia Lo Dico ◽  
Francesca Semilia ◽  
Stefana Milioto ◽  
Filippo Parisi ◽  
Giuseppe Cavallaro ◽  
...  
Keyword(s):  
Electrostatic Interactions ◽  
Positive Charge ◽  
Halloysite Nanotubes ◽  
Surfactant Micelles ◽  
Surfactant Aggregates ◽  
Cleaning System ◽  
Anionic Species ◽  
Aqueous Mixture ◽  
Positively Charged ◽  
Marble Surface

Halloysite nanotubes were used to incorporate anionic surfactant micelles and an organic solvent to generate a cleaning system to be applied in Cultural Heritage restoration. The targeted adsorption is driven by electrostatic interactions based on the nanotubes peculiar charge separation. Namely anionic species are driven to the positively charged inner surface while being prevented from interacting with the halloysite outer surface that possesses a positive charge density. The hybrid organic/inorganic emulsion was characterized by dynamic light scattering. Analysis of the autocorrelation function allowed us to define the presence of surfactant aggregates inside/outside the nanotube lumen as a function of the nanotube/surfactant ratio in an aqueous mixture. The application of this prepared emulsion for the controlled cleaning of a marble artifact is demonstrated. To this purpose, a membrane of nanofibrous polyacrylonitrile was prepared by electrospinning and was applied between the work of art and the cleaning agent to avoid the release of residues on the marble surface. This work represents a further step toward the opportunity to extend the use of emulsions for cleaning protocols for stone-based artifacts or in technological applications where surfactant separation is required by a simple centrifugation/sedimentation method.

Synthesis and evaluation of stable polymeric solid acid based on halloysite nanotubes for conversion of one-pot cellulose to 5-hydroxymethylfurfural

RSC Advances ◽  
2014 ◽  
Vol 4 (45) ◽  
pp. 23797-23806 ◽  
Author(s):  
Yunlei Zhang ◽  
Jianming Pan ◽  
Yongsheng Yan ◽  
Weidong Shi ◽  
Longbao Yu
Keyword(s):  
Emulsion Polymerization ◽  
Solid Acid ◽  
Pickering Emulsion ◽  
Halloysite Nanotubes ◽  
Precipitation Polymerization ◽  
One Pot ◽  
Pickering Emulsion Polymerization ◽  
Polymeric Solid

Based on halloysite nanotubes (HNTs), precipitation polymerization and Pickering emulsion polymerization were firstly adopted to synthesize two composites i.e. HNTs–polystyrene(PSt)–polydivinylbenzene(DVB)(i) and HNTs–PSt–PDVB(ii), respectively.

scholarly journals Properties of unmodified and modified natural rubber/halloysite nanotubes composites

2020 ◽  
Author(s):  
Nabil Hayeemasae ◽  
Kannika Sahakaro ◽  
Hanafi Ismail
Keyword(s):  
Natural Rubber ◽  
Halloysite Nanotubes

Interfacial biocatalysis in bacteria-stabilized Pickering emulsions for microbial transformation of hydrophobic chemicals

2021 ◽  
Author(s):  
Haisheng Xie ◽  
Wenyu Zhao ◽  
Daniel Chikere Ali ◽  
Xuehong Zhang ◽  
Zhilong Wang
Keyword(s):  
Microbial Transformation ◽  
Pickering Emulsion ◽  
Pickering Emulsions

The Pickering emulsion interface is an exceptional habitat for bacteria to grow by simultaneously utilizing hydrophobic and hydrophilic chemicals.

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