Chapter 3 The Applications of Complex Mesoporous Silica Nanocomposites
3.3 Scope of the Application of Mesoporous Materials
In this section, the lasted applications of the mesoporous nanocomposites are introduced in several areas in 2020, which will highly indicate the future development of mesoporous silica nanocomposites.
3.3.1 Fluorescent Probes for Fe3+ Detection
Yufei Dong et al [37] proposed a preparation approach firstly of ordered mesoporous silica (referred as OMS below) encapsulated carbon quantum dots, abbreviated as CQDs. The novel nanocomposites were planned to be used as CQDs@OMS fluorescent probes of the detection of ferric ions due to their quick response of Fe3+. Apart from that, the nanocomposites also have good advantages such as almost no toxicity, high fluorescence intensity and biocompatibility, and good water solubility in water phase.
3.3.2 Adsorbent for Benzene Sensing
Bralee Chayasombat and co-workers [38] investigated the application of mesoporous foam silica synthesized and meanwhile functionalized by hexamethyldisilazane, referred as HMDS resulting in a strong influence and effects on the surface adsorption capacity of benzene. After the functionalization process, the pore size and nature of mesoporous foam silica which the HMDS was successfully functionalized on, retained for a long time and the. By the way, the further analysis showed that the benzene adsorption is much higher than that without any functionalization and finally led to the usage of mesoporous foam silica being a sensing material for benzene detection.
3.3.3 Synergistic Therapy
Furthermore, Bo Yang and other researchers [39] also investigated the application of mesoporous silica nanoparticles (MSN for short) metal-phenolic networks (abbreviated as MPN) in the shape of a core-shell structure relating to combinatorial photothermal therapy and chemotherapy. During their investigation, they proposed the
synthesis of mesoporous silica nanoparticles with metal-phenolic networks in an approach of super assembling. The MSN@MPN system possessed a capacity of killing tumor cells effectively after the loading of anti-cancer drugs. The images of
MSN@MPN obtained by transmission electron microscopy were presented below in figure 20.
Figure 20. (a) and (b) are the TEM images of MSN@MPN nanoparticles.[39]
3.3.4 Brief Review of Future Research
According to what we mentioned above, the present applications of mesoporous silica nanocomposites are highly depending on the pore size, surface area, structures, morphologies and some other unique properties provided by some certain functional groups.
In addition, the versatility of mesoporous silica materials is attracting the attention of a growing number of researchers at present. The low-cost and facile synthesis procedure of mesoporous silica materials with multiple excellent properties has become the orientation of the scientific study in the following decades within this domain. However, the various demand for future mesoporous silica nanocomposites normally possess much more complex structures and morphologies resulting a contradiction among the synthesis approach, production cost, and expected performance and properties. Therefore, how to balance these crucial factors is of significance and importance, and it is indeed a challenge for the scientists in future.
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Acknowledgments
First of all, please allow me to express my sincere thanks to my mentor, Professor Wang Jingui. I am lucky to meet such a humble and knowledgeable teacher.
His enthusiasm for scientific research deeply affected me. It was him who helped me answer my doubts in scientific research, gave me a new understanding of scientific research, and completed this paper independently.
In addition, I would also like to thank Liu Xuefei, a graduate student. He provided many suggestions and advice about the composition of my bachelor thesis and told me how to look up and download literatures and papers. Furthermore, another graduate Shao Yuanchao also does me a favor in other ares.
As for my students, Li Geng, Xu Fulin and Wang Junmei, who are under the supervision of Prof. Wang, I have to admit that they really encouraged and inspired me when I was disappointed. My sincere appreciation belongs to them.
Besides, I herein express my gratitude to my parents for their support to my study and life.