Topical Collection "Synthesis and Application of Microcapsules II"

Editor

Prof. Dr. Fabien Salaün
E-Mail Website
Guest Editor
ENSAIT Ecole Nationale Supérieure des Arts et Industries Textiles, 59056 Roubaix, France
Interests: materials chemistry; polymer chemistry; textile engineering; microencapsulation; technical textiles; surface functionalization; smart coating; smart textile
Special Issues, Collections and Topics in MDPI journals

Topical Collection Information

Dear Colleagues,

Microencapsulated systems based on polymers or inorganic shell and active substances have emerged as good candidates for a broad range of applications.

The design of microparticles as a “smart” polymeric system has drawn increasing interest over the last few years due to their considerable potential when it comes to protecting different types of active agents in widely varied application fields, such as medicine, biomedical, pharmaceutical, textile, agricultural, food, and printing. The recent progress in controlled microencapsulation techniques has greatly facilitated the synthesis of well-defined microcapsules with a tailored functionality. Microcapsule shells and their functionality may finally be used to modulate surface functions. All these benefits are currently fully exploited for new tailored microparticles, for applications in drug delivery, self-healing, thermal energy storage, flame retardancy, cosmetics, functional coating, and material science, where they are used for the design of functional, responsive, or high-added-value materials.

This Special Issue is motivated by the observed increasing interest shown by various research groups in this field. Thus, considering your prominent contribution to this interesting research topic, I would like to cordially invite you to submit an article to this Special Issue. This Special Issue will publish full research papers, communications, and review articles. It will offer a global vision of researchers from universities, research centers, and industry worldwide working on microencapsulation and share the latest results in synthesis and characterization, as well as applications in basic and industrial processes. My goal is to collect comprehensive reviews from leading experts and up-to-date research from notable groups in the community, which will hopefully serve as a useful source of information for researchers. 

Prof. Dr. Fabien Salaün
Guest Editor

Manuscript Submission Information

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Keywords

  • Microencapsulation process and characterization
  • Nanoencapsulation process and characterization
  • Coating process of encapsulated materials
  • Colloid and formulations
  • Encapsulation in layer-by-layer polyelectrolyte films
  • Sol–gel chemistry
  • Emulsion-based processes (phase coacervation, interfacial polymerization, in situ polymerization, liposomes, solvent evaporation, etc.)
  • Encapsulation in the pharmaceutical, biomedical, cosmetics, food, and textile fields, among others
  • Hydrogels, polymers, sol–gel glasses, inorganic–organic hydrid materials, porous materials, multifunctional particles, micro and nanocapsules, and other host matrices and materials supports of interest
  • Functional coating

Published Papers (2 papers)

2021

Jump to: 2020

Review
A Comprehensive Review of Microencapsulated Phase Change Materials Synthesis for Low-Temperature Energy Storage Applications
Appl. Sci. 2021, 11(24), 11900; https://doi.org/10.3390/app112411900 - 14 Dec 2021
Viewed by 395
Abstract
Thermal energy storage (TES) using phase change materials (PCMs) is an innovative approach to meet the growth of energy demand. Microencapsulation techniques lead to overcoming some drawbacks of PCMs and enhancing their performances. This paper presents a comprehensive review of studies dealing with [...] Read more.
Thermal energy storage (TES) using phase change materials (PCMs) is an innovative approach to meet the growth of energy demand. Microencapsulation techniques lead to overcoming some drawbacks of PCMs and enhancing their performances. This paper presents a comprehensive review of studies dealing with PCMs properties and their encapsulation techniques. Thus, it is essential to critically examine the existing techniques and their compatibility with different types of PCMs, coating materials, and the area of application. The main objective of this review is to describe each microencapsulation process and to determine different factors that influence the performance of resulting microcapsules. Microencapsulation efficiency, as well as the limitation of each technique, are investigated, and optimum operating conditions of each process are highlighted. Furthermore, up-to-date studies of multifunctional PCMs microcapsules development with enhanced performances and new application directions are also presented. This review aims to be a useful guide for future researches dealing with low thermal energy storage applications of PCMs microcapsules. Full article
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Figure 1

2020

Jump to: 2021

Article
Preparation of an Oxygen-Releasing Capsule for Large-Sized Tissue Regeneration
Appl. Sci. 2020, 10(23), 8399; https://doi.org/10.3390/app10238399 - 25 Nov 2020
Viewed by 632
Abstract
Sufficient oxygenation for prevention of cellular damage remains a critical barrier to successful tissue engineering, especially in the construction of a large-sized tissue despite numerous attempts to resolve this issue in recent years. There have been a number of hypothetical solutions to this [...] Read more.
Sufficient oxygenation for prevention of cellular damage remains a critical barrier to successful tissue engineering, especially in the construction of a large-sized tissue despite numerous attempts to resolve this issue in recent years. There have been a number of hypothetical solutions to this problem, including the use of artificial oxygen carriers, induction of vascularization, and fabrication of oxygen-generating biomaterials. All of these efforts have improved the efficiency of oxygen supply, but none have been able to support the large tissue mass required for clinical application. Necrosis, which often occurs during hypoxic stress, is one of the most significant limitations in large-sized tissue regeneration. In this study, we developed an oxygen producing capsule using hydrogen peroxide (H2O2), PLGA (poly (lactic-co-glycolic acid) and alginate, and also evaluated the capsule as a model of a large-sized tissue. Firstly, H2O2 was microencapsulated by PLGA, and subsequently the H2O2-PLGA microspheres were embedded into a catalase-immobilized alginate capsule of 5.0 mm in diameter. The alginate capsules of a fairly large size were characterized for their oxygenation capability to cells embedded such as human umbilical vein endothelial cells (HUVECs) by HIF-1α and VEGF expression. The results of this study confirmed that in the oxygen-releasing capsule composed of H2O2 polymeric microspheres and catalase-bound alginate, HUVEC cells successfully survived in the hypoxic state. These results demonstrated that our oxygen producing system containing H2O2-PLGA microspheres could be a useful oxygenating biomaterial for engineering large-sized tissue. Full article
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Figure 1

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