Article
Chemistry, Applied
Yilin Jie, Fusheng Chen, Tingwei Zhu, Dingyang Lv
Summary: The ability of carboxymethyl chitosan (CMCS) to stabilize high internal phase emulsions (HIPEs) was investigated. CMCS formed a multi-layered network structure to stabilize the emulsions and improve their stability.
FOOD HYDROCOLLOIDS
(2022)
Article
Chemistry, Applied
Chen Huang, Fusheng Sun, Xuxi Ma, Chao Gao, Nan Yang, Katsuyoshi Nishinari
Summary: This study demonstrates the use of hydrophobically modified chitosan microgels as particle emulsifiers to stabilize high internal phase emulsions for the first time. The modified chitosan microgels have higher hydrophobicity and can effectively stabilize emulsions with high oil concentrations. The stable emulsions exhibited higher rheological compliance compared to other solid particle stabilized emulsions at high oil volume fractions.
CARBOHYDRATE POLYMERS
(2022)
Article
Chemistry, Physical
Jianhui Wu, Xin Guan, Chunhua Wang, To Ngai, Wei Lin
Summary: Waterborne polyurethane (WPU) nanoparticles were used to prepare high internal phase emulsions (HIPEs) with tailored morphology and excellent pH-responsiveness. The WPU-stabilized emulsions exhibited high stability, shear sensitivity, and excellent thixotropic recovery. They showed potential applications in oil transportation and recovery, emulsion polymerization, and heterogeneous catalysis.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Liufang Zhao, Xiaoqing Yuan, Huiyong Wang, Yuanchao Pei, Yunlei Shi, Yuling Zhao, Yang Zhao, Zhiyong Li
Summary: This study designed and prepared a novel class of light-responsive emulsions with controllable phase behavior. The stable emulsions formed by alkane-, water-and azobenzene-based ionic liquid surfactants could be reversibly switched between demulsification and re-emulsification by alternating UV and visible light irradiation under stirring. These light-switchable emulsions were utilized as controllable microreactors for efficient Knoevenagel reactions with simple separation and recycling characteristics. This strategy opens up a new pathway for the development of sustainable chemical processes.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Chemical
Xueqing Li, Liuping Fan, Ruiguo Li, Yanlei Han, Jinwei Li
Summary: In this study, beta-cyclodextrin (beta-CD) based high internal phase emulsions (HIPEs) were used as building blocks for engineering high-quality 3D shapes and achieving 4D color transformation. The adsorption of beta-CD molecules at the oil-water interface and the improvement of the microstructure, rheological properties, and printing quality of the Pickering HIPEs were achieved by increasing beta-CD concentration, decreasing pH value, and adding NaCl. The 4D printing of Pickering HIPEs was achieved by introducing pH-sensitive curcumin and heat-labile NaHCO3, leading to a conformational change in curcumin and a color transformation of the samples with the variation in heating temperature, heating time, and NaHCO3 concentration.
JOURNAL OF FOOD ENGINEERING
(2023)
Article
Chemistry, Applied
Tao Ma, Ranran Cui, Shuyu Lu, Xinna Hu, Bo Xu, Yi Song, Xiaosong Hu
Summary: This study explored the utilization of highly concentrated oil-in-water emulsions to create edible 3D materials, successfully developing a high internal phase Pickering emulsion with excellent stability and printability. The research demonstrated the ability to 3D print high-resolution, high-fidelity shapes under specific conditions.
FOOD HYDROCOLLOIDS
(2022)
Article
Chemistry, Applied
Ce Cheng, Zhihua Wu, Yi Wang, Jun Chen, Yejun Zhong, Ruihong Liang, Shengfeng Peng, David Julian McClements, Wei Liu
Summary: The study investigated the ability of LF/GA complexes as emulsifiers to form and stabilize HIPEs, with properties that could be tuned by varying solution pH. The HIPEs showed good stability and environmental stability, with potential for improving the photostability of encapsulated bioactives. The research provides a useful approach for designing HIPEs with improved functional performance, which can be used in semi-solid foods for enhancing textural characteristics or nutritional profiles.
FOOD HYDROCOLLOIDS
(2021)
Article
Chemistry, Applied
Yang Ni, Jingjing Wu, Yanting Jiang, Jinwei Li, Liuping Fan, Shengquan Huang
Summary: Nanocellulose hydrogels were used for the first time to stabilize high internal phase emulsions with reversible gelation properties. Controlling the hydrogel/water ratio can lead to the preparation of stable high internal phase emulsions with strong gel strength.
FOOD HYDROCOLLOIDS
(2022)
Article
Engineering, Chemical
Yongquan Wang, Bei Fan, Li-Tao Tong, Cong Lu, Shuying Li, Jing Sun, Liya Liu, Fengzhong Wang
Summary: This study demonstrates that soy protein isolate (SPI) at pH 3 can be used to prepare edible HIPEs with corn oil as the internal phase, even at a low protein concentration. The appearance of the HIPEs remains unchanged after heating, but phase separation occurs after freeze-thaw treatment. Interestingly, there are no distinct differences in the appearance of heated HIPEs with internal phase volumes of 85% and 90% after three cycles of freeze-thawing. The HIPEs exhibit solid-like behavior and an increase in surface hydrophobicity after heating, suggesting protein interaction.
JOURNAL OF FOOD ENGINEERING
(2022)
Article
Chemistry, Applied
Bo Pang, Huan Liu, Florian Rehfeldt, Kai Zhang
Summary: This study fabricated biobased nanoparticles DAPCNPs to stabilize HIPPEs, showing high stability and potential applications under different environmental conditions. Porous scaffolds were also prepared using DAPCNPs-stabilized HIPPEs, expanding their application areas.
CARBOHYDRATE POLYMERS
(2021)
Review
Chemistry, Physical
Ana Maria Bago Rodriguez, Bernard P. Binks
Summary: This article reviews the recent progress in preparing and studying high internal phase Pickering emulsions (HIPPEs). HIPPEs, with their high interfacial area and long-term stability, are being widely used in areas such as drug delivery, catalysis, and the production of novel porous materials.
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE
(2022)
Article
Engineering, Chemical
Yhan O'Neil Williams, Mara Wensveen, Meinou Corstens, Karin Schroe
Summary: This study quantitatively investigates the coalescence mechanisms of protein-stabilized high internal phase emulsions (HIPEs) using a purposely designed microfluidic chip. The observations provide new insights into the evolution of droplet interactions as a function of volume fraction and the destabilization mechanisms of protein-stabilized HIPEs.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Polymer Science
Ali Eslek, Hatice Hande Mert, Meltem Sozbir, Mohamed Alaasar, Emine Hilal Mert
Summary: High Internal Phase Emulsions (HIPEs) of dicyclopentadiene (DCPD) were prepared using surface-modified calcite (mCalcite) and a non-ionic surfactant. The emulsions were created with different ratios of internal phase, mCalcite loading, and surfactant. Macroporous polyDCPD composites were synthesized through ring-opening metathesis polymerization (ROMP) on the HIPEs. The effects of the experimental parameters on the morphological and physical properties of the composites were investigated, resulting in the derivation of five model equations with a confidence level of 95%. The interactions between surfactant amount, mCalcite loading, and internal phase ratio had a dominant role in the average cavity diameter.
Article
Agricultural Engineering
Xiaoqiang Chen, Fengjie Sun, Qianyi Tan, Ruixiang Shao, Jianchun Xie, Haifeng Wan, Gaoling Wu
Summary: In this study, polysaccharide conjugates extracted from bamboo leaf residue were used to prepare oil-in-water high internal phase emulsions (HIPEs). The polysaccharide conjugates showed good emulsifying properties and could stabilize medium-chain triglycerides. The stability and viscoelasticity of the HIPEs were enhanced with increasing polysaccharide concentration, and they exhibited good stability during storage and exposure to heat and ions.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Applied
Xin Hu, Bernard P. Binks, Zhenggang Cui
Summary: Sucrose esters, specifically sucrose stearate, can form vesicles at certain concentrations and stabilize oil-in-water emulsions. The vesicles act as a barrier around oil droplets, preventing oil crystals from approaching each other and coalescing, thus improving emulsion stability. Additionally, HIPEs stabilized by sucrose stearate are extremely stable to creaming and coalescence after freeze-thaw cycles.
FOOD HYDROCOLLOIDS
(2021)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
