1
|
Chen K, Hua ZY, Zhao JL, Redshaw C, Tao Z. Construction of cucurbit[n]uril-based supramolecular frameworks via host-guest inclusion and functional properties thereof. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00513a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Frameworks utilizing cucurbit[n]uril-based chemistry build on the rapid developments in the fields of metal-organic frameworks (MOFs), covalent-organic frameworks (COFs), and supramolecular organic frameworks (SOFs), and as porous materials have found...
Collapse
|
2
|
Chen Y, Jing L, Meng Q, Li B, Chen R, Sun Z. Supramolecular Chemotherapy: Noncovalent Bond Synergy of Cucurbit[7]uril against Human Colorectal Tumor Cells. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:9547-9552. [PMID: 34333979 DOI: 10.1021/acs.langmuir.1c01422] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Supramolecular chemotherapy has drawn increasing interest due to its ability to improve the efficiency of antitumor drugs and fewer associated toxic side effects. In this study, the smart supramolecular cargo, the doxorubicin-ZnO-cucurbit[7]uril (CDZ) nanocomplex, was constructed through ion-dipole interactions between cucurbit[7]uril {CB[7]} and doxorubicin-ZnO (dox-ZnO). The binding affinity of CB[7] and dox-ZnO was determined to be 104 M-1 by isothermal titration calorimetry. Importantly, spermine had a stronger binding affinity (106 M-1) with CB[7] than dox-ZnO through host-guest interactions. In the tumor microenvironment, spermine disassembled the CDZ nanocomplex, and dox was released from the nanocomplex by XRD, UV-visible spectra, and contact angle analysis. Compared to the single drug dox, the CDZ nanocomplex was demonstrated to possess higher activity of killing colorectal tumor cells by confocal laser scanning microscopy and cytotoxicity, which could be attributed to spermine concentration, spermine synthase, free radical damage, and G1 cell cycle arrest. Overall, the supramolecular delivery of dox can enhance the inhibition of human colorectal tumor cell proliferation and reduce cytotoxicity in human myocardial cells through the noncovalent bond synergy of {CB[7]}.
Collapse
Affiliation(s)
- Yueyue Chen
- Department of Toxicology and Sanitary Chemistry, School of Public Health, and Beijing Key Laboratory of Environment Toxicology, Capital Medical University, Beijing 100069, P. R. China
| | - Li Jing
- Department of Toxicology and Sanitary Chemistry, School of Public Health, and Beijing Key Laboratory of Environment Toxicology, Capital Medical University, Beijing 100069, P. R. China
| | - Qingtao Meng
- Department of Toxicology and Sanitary Chemistry, School of Public Health, and Beijing Key Laboratory of Environment Toxicology, Capital Medical University, Beijing 100069, P. R. China
| | - Bin Li
- Department of Toxicology and Sanitary Chemistry, School of Public Health, and Beijing Key Laboratory of Environment Toxicology, Capital Medical University, Beijing 100069, P. R. China
| | - Rui Chen
- Department of Toxicology and Sanitary Chemistry, School of Public Health, and Beijing Key Laboratory of Environment Toxicology, Capital Medical University, Beijing 100069, P. R. China
| | - Zhiwei Sun
- Department of Toxicology and Sanitary Chemistry, School of Public Health, and Beijing Key Laboratory of Environment Toxicology, Capital Medical University, Beijing 100069, P. R. China
| |
Collapse
|
3
|
Xu W, Kan J, Redshaw C, Bian B, Fan Y, Tao Z, Xiao X. A hemicyanine and cucurbit[n]uril inclusion complex: competitive guest binding of cucurbit[7]uril and cucurbit[8]uril. Supramol Chem 2019. [DOI: 10.1080/10610278.2019.1624748] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Weitao Xu
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, China
| | - Jinglan Kan
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, China
| | - Carl Redshaw
- Department of Chemistry & Biochemistry, University of Hull, Hull, UK
| | - Bing Bian
- College of Chemistry and Environmental Engineering, Shandong University of Science and Technology, Qingdao, China
| | - Ying Fan
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, China
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, China
| | - Xin Xiao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, China
| |
Collapse
|
4
|
Zhang Z, Chen Y, Liu Y. Efficient Room‐Temperature Phosphorescence of a Solid‐State Supramolecule Enhanced by Cucurbit[6]uril. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901882] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhi‐Yuan Zhang
- College of ChemistryState Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 China
| | - Yong Chen
- College of ChemistryState Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 China
| | - Yu Liu
- College of ChemistryState Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University Tianjin 300072 China
| |
Collapse
|
5
|
Mechanism of Biomineralization Induced by Bacillus subtilis J2 and Characteristics of the Biominerals. MINERALS 2019. [DOI: 10.3390/min9040218] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Abstract: Biomineralization induced by microorganisms has become a hot spot in the field of carbonate sedimentology; however, the mechanisms involved still need to be explored. In this study, the bacterium Bacillus subtilis J2 (GenBank MG575432) was used to induce the precipitation of calcium carbonate minerals at Mg/Ca molar ratios of 0, 3, 6, 9, and 12. Bacillus subtilis J2 bacteria released ammonia to increase pH, but the ammonia released only made the pH increase to 8.25. Carbonic anhydrase was also produced to catalyze the hydration of carbon dioxide, and this process released carbonate and bicarbonate ions that not only increased pH but also elevated carbonate supersaturation. The biominerals formed at a Mg/Ca molar ratio of 0 were spherulitic, elongated, dumbbell-shaped, and irregularly rhombohedral calcite; at a Mg/Ca molar ratio of 3, the biominerals were calcite and aragonite, the weight ratio of calcite decreased from 26.7% to 15.6%, and that of aragonite increased from 73.3% to 84.4% with increasing incubation time. At higher Mg/Ca molar ratios, the biominerals were aragonite, and the crystallinity and thermal stability of aragonite decreased with increasing Mg/Ca molar ratios. FTIR results showed that many organic functional groups were present on/within the biominerals, such as C–O–C, N–H, C=O, O–H, and C–H. HRTEM-SAED examination of the ultra-thin slices of B. subtilis J2 bacteria showed that nano-sized minerals with poor crystal structure had grown or been adsorbed on the EPS coating. The EPS of the B. subtilis J2 strain contained abundant glutamic acid and aspartic acid, which could be deprotonated in an alkaline condition to adsorb Ca2+ and Mg2+ ions; this made EPS act as the nucleation sites. This study may provide some references for further understanding of the mechanism of biomineralization induced by microorganisms.
Collapse
|
6
|
Zhang ZY, Chen Y, Liu Y. Efficient Room-Temperature Phosphorescence of a Solid-State Supramolecule Enhanced by Cucurbit[6]uril. Angew Chem Int Ed Engl 2019; 58:6028-6032. [PMID: 30848043 DOI: 10.1002/anie.201901882] [Citation(s) in RCA: 153] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/05/2019] [Indexed: 12/13/2022]
Abstract
Efficient emission of purely organic room-temperature phosphorescence (RTP) is of great significant for potential application in optoelectronics and photobiology. Herein, we report an uncommon phosphorescent effect of organic single molecule enhanced by resulting supramolecular assembly of host-guest complexation. The chromophore bromophenyl-methyl-pyridinium (PY) with different counterions as guests display various phosphorescence quantum yields from 0.4 % to 24.1 %. Single crystal X-ray diffraction results indicate that the chromophore with iodide counterion (PYI) exhibits the highest efficiency maybe due to the halogen-bond interactions. Significantly, the nanosupramolecular assembly of PY chloride complexation with the cucurbit[6]uril gives a greatly enhanced phosphorescent quantum yield up to 81.2 % in ambient. Such great enhancement is because of the strict encapsulation of cucurbit[6]uril, which prevents the nonradiative relaxation and promotes intersystem crossing (ISC). This supramolecular assembly concept with counterions effect provides a novel approach for the improvement of RTP.
Collapse
Affiliation(s)
- Zhi-Yuan Zhang
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
| | - Yong Chen
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
| | - Yu Liu
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, 300072, China
| |
Collapse
|
7
|
Zheng YC, Zhao YY, Zheng ML, Chen SL, Liu J, Jin F, Dong XZ, Zhao ZS, Duan XM. Cucurbit[7]uril-Carbazole Two-Photon Photoinitiators for the Fabrication of Biocompatible Three-Dimensional Hydrogel Scaffolds by Laser Direct Writing in Aqueous Solutions. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1782-1789. [PMID: 30608644 DOI: 10.1021/acsami.8b15011] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We have introduced a novel water-soluble two-photon photoinitiator based on the host-guest interaction between 3,6-bis[2-(1-methyl-pyridinium)vinyl]-9-pentyl-carbazole diiodide (BMVPC) and cucurbit[7]uril (CB7) because most of the commercial photoinitiators have poor two-photon initiating efficiency in aqueous solutions. The binding ratio of BMVPC and CB7 was determined as 1:1 by isothermal titration calorimetry and quantum chemical calculation. The formation of the host-guest complex increases the two-photon absorption cross-section about five times, and improves the water solubility required as the photoinitiator for hydrogel fabrication. The BMVPC-CB7 inclusion complex was used as the one-component photoinitiator, and the polyethylene glycol diacrylate with promising biocompatibility was used as the hydrogel monomer to form the aqueous-phase photoresist system applied to two-photon polymerization microfabrication. A relatively low laser threshold of 4.5 mW, a high fabricating resolution of 180 nm, and the true three-dimensional (3D) fabricating capability in the aqueous solution have been obtained by using the as-prepared photoresist system. Finally, 3D engineering hydrogel scaffold microstructures with low toxicity and good biocompatibility have been fabricated and cocultured with living HeLa cells, which demonstrates the potential for further application in tissue engineering.
Collapse
Affiliation(s)
- Yong-Chao Zheng
- Laboratory of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , No. 29, Zhongguancun East Road , Beijing 100190 , P. R. China
- Research Institute of Chemical Defense , Academy of Military Sciences , Changping District, Beijing 102205 , P. R. China
- State Key Laboratory of NBC Protection for Civilian , Beijing 102205 , P. R. China
| | | | - Mei-Ling Zheng
- Laboratory of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , No. 29, Zhongguancun East Road , Beijing 100190 , P. R. China
| | | | - Jie Liu
- Laboratory of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , No. 29, Zhongguancun East Road , Beijing 100190 , P. R. China
| | - Feng Jin
- Laboratory of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , No. 29, Zhongguancun East Road , Beijing 100190 , P. R. China
| | - Xian-Zi Dong
- Laboratory of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , No. 29, Zhongguancun East Road , Beijing 100190 , P. R. China
| | - Zhen-Sheng Zhao
- Laboratory of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , No. 29, Zhongguancun East Road , Beijing 100190 , P. R. China
| | | |
Collapse
|
8
|
Xu W, Kan J, Yang B, Prior TJ, Bian B, Xiao X, Tao Z, Redshaw C. A Study of the Interaction Between Cucurbit[8]uril and Alkyl-Substituted 4-Pyrrolidinopyridinium Salts. Chem Asian J 2019; 14:235-242. [PMID: 30462888 DOI: 10.1002/asia.201801498] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 11/20/2018] [Indexed: 01/14/2023]
Abstract
The interaction between cucuribit[8]uril (Q[8]) and a series of 4-pyrrolidinopyridinium salts bearing aliphatic substituents at the pyridinium nitrogen, namely 4-(C4 H8 N)C5 H5 NRBr, where R=Et (g1), n-butyl (g2), n-pentyl (g3), n-hexyl (g4), n-octyl (g5), n-dodecyl (g6), has been studied in aqueous solution by 1 H NMR spectroscopy, electronic absorption spectroscopy, isothermal titration calorimetry and mass spectrometry. Single crystal X-ray diffraction revealed the structure of the host-guest complexes for g1, g2, g3, and g5. In each case, the Q[8] contains two guest molecules in a centrosymmetric dimer. The orientation of the guest molecule changes as the alkyl chain increases in length. Interestingly, in the solid state, the inclusion complexes identified are different from those observed in solution, and furthermore, in the case of g3, Q[8] exhibits two different interactions with the guest. In solution, the length of the alkyl chain plays a significant role in determining the type of host-guest interaction present.
Collapse
Affiliation(s)
- Weitao Xu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, P. R. China
| | - Jinglan Kan
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, 250014, P. R. China
| | - Bo Yang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, P. R. China
| | - Timothy J Prior
- Chemistry, Department of Chemistry and Biochemistry, University of Hull, Hull, HU6 7RX, U.K
| | - Bing Bian
- College of Chemistry and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
| | - Xin Xiao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, P. R. China
| | - Zhu Tao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, P. R. China
| | - Carl Redshaw
- Chemistry, Department of Chemistry and Biochemistry, University of Hull, Hull, HU6 7RX, U.K
| |
Collapse
|