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Atsumi M, Zheng JJ, Tellgren E, Sakaki S, Helgaker T. Carbon dioxide adsorption to UiO-66: theoretical analysis of binding energy and NMR properties. Phys Chem Chem Phys 2023; 25:28770-28783. [PMID: 37850473 DOI: 10.1039/d3cp04033j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
UiO-66 is one of the most valuable metal-organic frameworks because of its excellent adsorption capability for gas molecules and its high stability towards water. Herein we investigated adsorption of carbon dioxide (CO2), acetone, and methanol to infinite UiO-66 using DFT calculations on an infinite system under periodic-boundary conditions and post-Hartree-Fock (SCS-MP2 and MP2.5) calculations on cluster models. Three to four molecules are adsorbed at each of four μ-OH groups bridging three Zr atoms in one unit cell (named Site I). Six molecules are adsorbed around three pillar ligands, where the molecule is loosely surrounded by three terephthalate ligands (named Site II). Also, six molecules are adsorbed around the pillar ligand in a different manner from that at Site II, where the molecule is surrounded by three terephthalate ligands (named Site III). Totally fifteen to sixteen CO2 molecules are adsorbed into one unit cell of UiO-66. The binding energy (BE) decreases in the order Site I > Site III > Site II for all three molecules studied here and in the order acetone > methanol ≫ CO2 in the three adsorption sites. At the site I, the protonic H atom of the μ-OH group interacts strongly with the negatively charged O atom of CO2, acetone and methanol, which is the origin of the largest BE value at this site. Although the DFT calculations present these decreasing orders of BE values correctly, the correction by post-Hartree-Fock calculations is not negligibly small and must be added for obtaining better BE values. We explored NMR spectra of UiO-66 with adsorbed CO2 molecules and found that the isotropic shielding constants of the 1H atom significantly differ among no CO2, one CO2 (at Sites I, II, or III), and fifteen CO2 adsorption cases (Sites I to III) but the isotropic 17O and 13C shielding constants change moderately by adsorption of fifteen CO2 molecules. Thus, 1H NMR measurement is a useful experiment for investigating CO2 adsorption.
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Affiliation(s)
- Michiko Atsumi
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, Box 1033, N-0315, Oslo, Norway.
| | - Jia-Jia Zheng
- Laboratory of Theoretical and Computational Nanoscience, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, No. 11 Zhong Guan Cun Bei Yi Tiao, Beijing 100190, China
| | - Erik Tellgren
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, Box 1033, N-0315, Oslo, Norway.
| | - Shigeyoshi Sakaki
- Institute for Integrated Cell-Material Sciences, Kyoto University, Rhom Plaza R312, Kyoto-daigaku-Katsura, Nishikyo-ku, Kyoto 615-8146, Japan.
| | - Trygve Helgaker
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, Box 1033, N-0315, Oslo, Norway.
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de Carvalho MH, de Araújo HDA, da Silva RP, Dos Santos Correia MT, de Freitas KCS, de Souza SR, Barroso Coelho LCB. Biosensor Characterization from Cratylia mollis Seed Lectin (Cramoll)-MOF and Specific Carbohydrate Interactions in an Electrochemical Model. Chem Biodivers 2022; 19:e202200515. [PMID: 36250754 DOI: 10.1002/cbdv.202200515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 10/14/2022] [Indexed: 12/27/2022]
Abstract
Biosensors are small devices known for their selectivity, high specificity and sensitivity to the respective analyte, at low concentrations. We developed an electrochemical biosensor using the crystalline polymer MOF-[Cu3 (BTC)2 (H2 O)2 ]n to characterize Cratylia mollis seed lectin (Cramoll) and its interaction with free carbohydrate (glucose) and carbohydrates on the surface of rabbit erythrocytes. The electrochemical potentials presented by the exponential curves that vary from 96 to 142 mV in relation to concentrations of 10 to 20 mM of glucose are decisive for the use of the system containing gold electrode/MOF/Cramoll for the characterization of biological models due to its high sensitivity. As well as the kinetic behavior presented in the cyclic voltammograms, with a cathodic current response of 0.000 3 A for a glucose concentration of 15 mM. These results were due to the high specificity of Cramoll under these conditions, promoting stability of surface charges at the Cramoll/electrode interface. This phenomenon facilitates the monitoring of the interaction with free glucose present in the electrolyte medium by potentiometric and amperometric methods and with carbohydrates present on the surface of rabbit erythrocytes through the potentiometric method. Through scanning electron microscopy (SEM) it was possible to observe Cramoll immobilized on the MOF surface, proving the specificity of the ligand (glucose-lectin) through the morphological lectin changes in this process. This electrochemical model, Cramoll/MOF biosensor, is effective for evaluating free lectin/carbohydrate or in the erythrocyte membrane.
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Affiliation(s)
- Maryana Hermínio de Carvalho
- Departamento de Bioquímica, Centro de Biociências, CB, Universidade Federal de Pernambuco, Avenida Prof. Moraes Rego, 1235, Cidade Universitária, 50670-420, Recife-PE, Brazil
- Departamento de Química, Universidade Federal Rural de Pernambuco, UFRPE, Rua Dom Manuel de Medeiros, S/N, Dois Irmãos, Recife-PE, 52171-900, Brazil
| | - Hallysson Douglas Andrade de Araújo
- Departamento de Bioquímica, Centro de Biociências, CB, Universidade Federal de Pernambuco, Avenida Prof. Moraes Rego, 1235, Cidade Universitária, 50670-420, Recife-PE, Brazil
| | - Renata Pereira da Silva
- Departamento de Química, Universidade Federal Rural de Pernambuco, UFRPE, Rua Dom Manuel de Medeiros, S/N, Dois Irmãos, Recife-PE, 52171-900, Brazil
| | - Maria Tereza Dos Santos Correia
- Departamento de Bioquímica, Centro de Biociências, CB, Universidade Federal de Pernambuco, Avenida Prof. Moraes Rego, 1235, Cidade Universitária, 50670-420, Recife-PE, Brazil
| | - Katia Cristina Silva de Freitas
- Departamento de Química, Universidade Federal Rural de Pernambuco, UFRPE, Rua Dom Manuel de Medeiros, S/N, Dois Irmãos, Recife-PE, 52171-900, Brazil
| | - Sandra Rodrigues de Souza
- Departamento de Educação, UFRPE, Rua Dom Manuel de Medeiros, S/N, Dois Irmãos, Recife-PE, 52171-900, Brazil
| | - Luana Cassandra Breitenbach Barroso Coelho
- Departamento de Bioquímica, Centro de Biociências, CB, Universidade Federal de Pernambuco, Avenida Prof. Moraes Rego, 1235, Cidade Universitária, 50670-420, Recife-PE, Brazil
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Guo Y, Yuan G, Hu X, Zhang J, Fang G. A High-Luminescence Biomimetic Nanosensor Based on N, S-GQDs-Embedded Zinc-Based Metal-Organic Framework@Molecularly Imprinted Polymer for Sensitive Detection of Octopamine in Fermented Foods. Foods 2022; 11:1348. [PMID: 35564071 PMCID: PMC9100785 DOI: 10.3390/foods11091348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 05/02/2022] [Accepted: 05/04/2022] [Indexed: 11/25/2022] Open
Abstract
In this study, a novel fluorescent molecularly imprinted nanosensor (N, S-GQDs@ZIF-8@MIP) based on the nitrogen and sulfur co-doped graphene quantum dots decorated zeolitic imidazolate framework-8 was constructed for the detection of octopamine (OA). Herein, ZIF-8 with a large surface area was introduced as a supporter of the sensing system, which effectively shortened the response time of the sensor. Meanwhile, high green luminescent N, S-GQDs and a maximum emission wavelength of 520 nm under 460 nm excitation and a 12.5% quantum yield were modified on the surface of ZIF-8 as a signal tag that can convert the interactions between the sensor and OA into detectable fluorescent signals. Finally, N, S-GQDs@ZIF-8@MIP was acquired through the surface molecular imprinting method. Due to the synergy of N, S-GQDs, ZIF-8, and MIP, the obtained sensor not only demonstrated higher selectivity and sensitivity than N, S-GQDs@ZIF-8@NIP, but also displayed faster fluorescence response than N, S-GQDs@MIP. Under optimal conditions, the developed sensor presented a favorable linear relationship in the range of 0.1-10 mg L-1 with a detection limit of 0.062 mg L-1. Additionally, the proposed N, S-GQDs@ZIF-8@MIP strategy was effectively applied to the detection of OA in fermented samples, and the obtained results had a satisfactory correlation with those of HPLC.
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Affiliation(s)
| | | | | | | | - Guozhen Fang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China; (Y.G.); (G.Y.); (X.H.); (J.Z.)
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Huang Y, Wang Y, Ding Q, Zhao Y. Construction and second‐order nonlinear optical properties of two 1D zigzag chains with crisscross and parallel arrangements. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yong‐Qing Huang
- Department of Applied Chemistry College of Chemical and Biological Engineering Shandong University of Science and Technology 266590 Qingdao China
| | - Yang Wang
- Department of Applied Chemistry College of Chemical and Biological Engineering Shandong University of Science and Technology 266590 Qingdao China
| | - Qi‐Hui Ding
- Department of Applied Chemistry College of Chemical and Biological Engineering Shandong University of Science and Technology 266590 Qingdao China
| | - Yue Zhao
- State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering Nanjing University 210093 Nanjing China
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Lv M, Zhou W, Tavakoli H, Bautista C, Xia J, Wang Z, Li X. Aptamer-functionalized metal-organic frameworks (MOFs) for biosensing. Biosens Bioelectron 2021; 176:112947. [PMID: 33412430 PMCID: PMC7855766 DOI: 10.1016/j.bios.2020.112947] [Citation(s) in RCA: 116] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 12/22/2020] [Accepted: 12/26/2020] [Indexed: 02/07/2023]
Abstract
As a class of crystalline porous materials, metal-organic frameworks (MOFs) have attracted increasing attention. Due to the nanoscale framework structure, adjustable pore size, large specific surface area, and good chemical stability, MOFs have been applied widely in many fields such as biosensors, biomedicine, electrocatalysis, energy storage and conversions. Especially when they are combined with aptamer functionalization, MOFs can be utilized to construct high-performance biosensors for numerous applications ranging from medical diagnostics and food safety inspection, to environmental surveillance. Herein, this article reviews recent innovations of aptamer-functionalized MOFs-based biosensors and their bio-applications. We first briefly introduce different functionalization methods of MOFs with aptamers, which provide a foundation for the construction of MOFs-based aptasensors. Then, we comprehensively summarize different types of MOFs-based aptasensors and their applications, in which MOFs serve as either signal probes or signal probe carriers for optical, electrochemical, and photoelectrochemical detection, with an emphasis on the former. Given recent substantial research interests in stimuli-responsive materials and the microfluidic lab-on-a-chip technology, we also present the stimuli-responsive aptamer-functionalized MOFs for sensing, followed by a brief overview on the integration of MOFs on microfluidic devices. Current limitations and prospective trends of MOFs-based biosensors are discussed at the end.
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Affiliation(s)
- Mengzhen Lv
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Qingdao, 266071, PR China; Department of Chemistry and Biochemistry, University of Texas at El Paso, El Paso, 79968, USA
| | - Wan Zhou
- Department of Chemistry and Biochemistry, University of Texas at El Paso, El Paso, 79968, USA
| | - Hamed Tavakoli
- Department of Chemistry and Biochemistry, University of Texas at El Paso, El Paso, 79968, USA
| | - Cynthia Bautista
- Department of Chemistry and Biochemistry, University of Texas at El Paso, El Paso, 79968, USA
| | - Jianfei Xia
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Qingdao, 266071, PR China; Department of Chemistry and Biochemistry, University of Texas at El Paso, El Paso, 79968, USA.
| | - Zonghua Wang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Qingdao, 266071, PR China
| | - XiuJun Li
- Department of Chemistry and Biochemistry, University of Texas at El Paso, El Paso, 79968, USA; Biomedical Engineering, Border Biomedical Research Center, University of Texas at El Paso, El Paso, 79968, USA; Environmental Science and Engineering, University of Texas at El Paso, El Paso, 79968, USA.
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6
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Liu Z, He W, Zhang Q, Shapour H, Bakhtari MF. Preparation of a GO/MIL-101(Fe) Composite for the Removal of Methyl Orange from Aqueous Solution. ACS OMEGA 2021; 6:4597-4608. [PMID: 33644567 PMCID: PMC7905816 DOI: 10.1021/acsomega.0c05091] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 01/27/2021] [Indexed: 05/28/2023]
Abstract
The composite material graphene oxide (GO)/MIL-101(Fe) was prepared by a simple one-pot reaction method. MIL-101(Fe) grown on the surface of a GO layer was confirmed by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The adsorption performance and the mechanism of MIL-101(Fe) and GO/MIL-101(Fe) for methyl orange (MO) were studied. The results have shown that the adsorption capacity of GO/MIL-101(Fe) for MO was significantly better than that of MIL-101(Fe), and its capacity was the highest when 10% GO was added. The Langmuir specific surface areas of MIL-101(Fe) and GO/MIL-101(Fe) were 1003.47 and 888.289 m2·g-1, respectively. The maximum adsorption capacities of MO on MIL-101 (Fe) and 10% GO/MIL-101 (Fe) were 117.74 and 186.20 mg·g-1, respectively. The adsorption isotherms were described by the Langmuir model, and the adsorption kinetic data suggested the pseudo-second order to be the best fit model. GO/MIL-101(Fe) can be reused at least three times.
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Insights into the Gas Adsorption Mechanisms in Metal-Organic Frameworks from Classical Molecular Simulations. Top Curr Chem (Cham) 2020; 378:14. [PMID: 31933069 DOI: 10.1007/s41061-019-0276-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 12/18/2019] [Indexed: 10/25/2022]
Abstract
Classical molecular simulations can provide significant insights into the gas adsorption mechanisms and binding sites in various metal-organic frameworks (MOFs). These simulations involve assessing the interactions between the MOF and an adsorbate molecule by calculating the potential energy of the MOF-adsorbate system using a functional form that generally includes nonbonded interaction terms, such as the repulsion/dispersion and permanent electrostatic energies. Grand canonical Monte Carlo (GCMC) is the most widely used classical method that is carried out to simulate gas adsorption and separation in MOFs and identify the favorable adsorbate binding sites. In this review, we provide an overview of the GCMC methods that are normally utilized to perform these simulations. We also describe how a typical force field is developed for the MOF, which is required to compute the classical potential energy of the system. Furthermore, we highlight some of the common analysis techniques that have been used to determine the locations of the preferential binding sites in these materials. We also review some of the early classical molecular simulation studies that have contributed to our working understanding of the gas adsorption mechanisms in MOFs. Finally, we show that the implementation of classical polarization for simulations in MOFs can be necessary for the accurate modeling of an adsorbate in these materials, particularly those that contain open-metal sites. In general, molecular simulations can provide a great complement to experimental studies by helping to rationalize the favorable MOF-adsorbate interactions and the mechanism of gas adsorption.
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Lin CL, Chen YF, Qiu LJ, Zhu B, Wang X, Luo SP, Shi W, Yang TH, Lei W. Synthesis, structure and photocatalytic properties of coordination polymers based on pyrazole carboxylic acid ligands. CrystEngComm 2020. [DOI: 10.1039/d0ce01054e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The photocatalytic activities of two novel different 2-D coordination polymers constructed from 5-hydroxy-1H-pyrazole-3-carboxylic acid ligand have been explored.
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Affiliation(s)
- Chen-Lan Lin
- School of Chemistry & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 23001
- P. R. China
| | - Yan-Fei Chen
- School of Chemistry & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 23001
- P. R. China
| | - Li-Juan Qiu
- School of Chemistry & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 23001
- P. R. China
| | - Binglong Zhu
- School of Chemistry & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 23001
- P. R. China
| | - Xin Wang
- School of Chemistry & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 23001
- P. R. China
| | - Shi-Peng Luo
- School of Chemistry & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 23001
- P. R. China
| | - Wenyan Shi
- School of Chemistry & Chemical Engineering
- Yancheng Insititute of Technology
- Yancheng 224051
- P. R. China
- School of Chemical Engineering
| | - Ting-Hai Yang
- School of Chemistry & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 23001
- P. R. China
| | - Wu Lei
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
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Franz DM, Belof JL, McLaughlin K, Cioce CR, Tudor B, Hogan A, Laratelli L, Mulcair M, Mostrom M, Navas A, Stern AC, Forrest KA, Pham T, Space B. MPMC and MCMD: Free High‐Performance Simulation Software for Atomistic Systems. ADVANCED THEORY AND SIMULATIONS 2019. [DOI: 10.1002/adts.201900113] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Douglas M. Franz
- University of South Florida Department of Chemistry 4202 E. Fowler Ave., CHE205 Tampa FL 33620‐5250 USA
| | - Jonathan L. Belof
- Lawrence Livermore National Laboratory 7000 East Avenue Livermore CA 94550 USA
| | - Keith McLaughlin
- University of South Florida Department of Chemistry 4202 E. Fowler Ave., CHE205 Tampa FL 33620‐5250 USA
| | - Christian R. Cioce
- Sandia National Laboratories 1515 Eubank Blvd SE Albuquerque NM 87123 USA
| | - Brant Tudor
- University of South Florida Department of Chemistry 4202 E. Fowler Ave., CHE205 Tampa FL 33620‐5250 USA
| | - Adam Hogan
- University of South Florida Department of Chemistry 4202 E. Fowler Ave., CHE205 Tampa FL 33620‐5250 USA
| | - Luciano Laratelli
- University of South Florida Department of Chemistry 4202 E. Fowler Ave., CHE205 Tampa FL 33620‐5250 USA
| | - Meagan Mulcair
- University of South Florida Department of Chemistry 4202 E. Fowler Ave., CHE205 Tampa FL 33620‐5250 USA
| | - Matthew Mostrom
- University of South Florida Department of Chemistry 4202 E. Fowler Ave., CHE205 Tampa FL 33620‐5250 USA
| | - Alejandro Navas
- Oxford University School of Geography and the Environment South Parks Road Oxford OX1 3QY UK
| | - Abraham C. Stern
- Department of Chemistry University of California Irvine, 500 East Peltason Dr. Irvine CA 92697‐5255 USA
| | - Katherine A. Forrest
- University of South Florida Department of Chemistry 4202 E. Fowler Ave., CHE205 Tampa FL 33620‐5250 USA
| | - Tony Pham
- University of South Florida Department of Chemistry 4202 E. Fowler Ave., CHE205 Tampa FL 33620‐5250 USA
- University of Tampa Department of Chemistry Biochemistry, and Physics 401 W. Kennedy Blvd. Tampa FL 33606‐1490 USA
| | - Brian Space
- University of South Florida Department of Chemistry 4202 E. Fowler Ave., CHE205 Tampa FL 33620‐5250 USA
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Leng X, Huang H, Wang W, Sai N, You L, Yin X, Ni J. Zirconium-Porphyrin PCN-222: pH-responsive Controlled Anticancer Drug Oridonin. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2018; 2018:3249023. [PMID: 30622595 PMCID: PMC6304552 DOI: 10.1155/2018/3249023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Accepted: 10/14/2018] [Indexed: 12/23/2022]
Abstract
Drug delivery carriers with a high drug loading capacity and biocompatibility, especially for controlled drug release, are urgently needed due to the side effects and frequent dose in the traditional therapeutic method. Guided by nanomaterials, we have successfully synthesized zirconium-based metal-organic frameworks, Zr-TCPP (TCPP: tetrakis (4-carboxyphenyl) porphyrin), namely, PCN-222, which is synthesized by solvothermal method. And it has been designed as a drug delivery system (DDS) with a high drug loading of 38.77 wt%. In our work, PCN-222 has achieved pH-sensitive drug release and showed comprehensive SEM, TEM, PXRD, DSC, FTIR, and N2 adsorption-desorption. The low cytotoxicity and good biocompatibility of PCN-222 were certificated by the in vitro results from an MTT assay, DAPI staining, and Annexin V/PI double-staining even cultivated L02 cells and HepG2 cells for 48h. Furthermore, Oridonin, a commonly used cancer chemotherapy drug, is adsorbed into PCN-222 via the solvent diffusion technique. Based on an analysis of the Oridonin release profile, results suggest that it can last for more than 7 days in vitro. And cumulative release rate of Ori at the 7 d was about 86.29% and 63.23% in PBS (pH 5.5 and pH 7.2, respectively) at 37°C. HepG2 cells were chosen to research the cytotoxicity of PCN-222@Ori and free Oridonin. The results demonstrated that the PCN-222@Ori nanocarrier shows higher cytotoxicity in HepG2 cells compared to Oridonin.
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Affiliation(s)
- Xin Leng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Hongliang Huang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, China
- National Center for International Joint Research on Membrane Science and Technology, Tianjin Polytechnic University, China
| | - Wenping Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Na Sai
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
- School of Pharmacy, Inner Mongolia Medical University, Hohhot 010110, China
| | - Longtai You
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Xingbin Yin
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Jian Ni
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
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Chen GH, He YP, Zhang SH, Zhang J. Tuning a layer to a three-dimensional cobalt-tris(4′-carboxybiphenyl)amine framework by introducing potassium ions. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.02.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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12
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Franz DM, Dyott ZE, Forrest KA, Hogan A, Pham T, Space B. Simulations of hydrogen, carbon dioxide, and small hydrocarbon sorption in a nitrogen-rich rht-metal–organic framework. Phys Chem Chem Phys 2018; 20:1761-1777. [DOI: 10.1039/c7cp06885a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Detailed theoretical insights into the gas-sorption mechanism of Cu-TDPAH are presented for the first time.
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Affiliation(s)
- Douglas M. Franz
- Department of Chemistry
- University of South Florida, 4202 East Fowler Avenue
- Tampa
- USA
| | - Zachary E. Dyott
- Department of Chemistry
- University of South Florida, 4202 East Fowler Avenue
- Tampa
- USA
- Theoretical Chemistry Institute
| | - Katherine A. Forrest
- Department of Chemistry
- University of South Florida, 4202 East Fowler Avenue
- Tampa
- USA
| | - Adam Hogan
- Department of Chemistry
- University of South Florida, 4202 East Fowler Avenue
- Tampa
- USA
| | - Tony Pham
- Department of Chemistry
- University of South Florida, 4202 East Fowler Avenue
- Tampa
- USA
| | - Brian Space
- Department of Chemistry
- University of South Florida, 4202 East Fowler Avenue
- Tampa
- USA
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13
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Forrest KA, Pham T, Space B. Investigating gas sorption in an rht-metal-organic framework with 1,2,3-triazole groups. Phys Chem Chem Phys 2017; 19:29204-29221. [PMID: 29067398 DOI: 10.1039/c7cp06128e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Simulations of CO2 and H2 sorption were performed in an rht-metal-organic framework (MOF) that consists of Cu2+ ions coordinated to 5,5',5''-(4,4',4''-(benzene-1,3,5-triyl)tris(1H-1,2,3-triazole-4,1-diyl))triisophthalate (BTTI) linkers; it is referred to as Cu-BTTI herein. This MOF was previously synthesized and reported by three different experimental groups [Zhao et al., Sci. Rep., 2013, 3, 1149; Schröder et al., Chem. Sci., 2013, 4, 1731-1736; Hupp et al., Energy Environ. Sci., 2013, 6, 1158-1163]. This MOF is notable for the presence of open-metal sites and nitrogen-rich regions through the copper paddlewheel ([Cu2(O2CR)4]) clusters and 1,2,3-triazole groups, respectively, which allows this material to display remarkable CO2 and H2 sorption properties. All three groups report distinct experimental and theoretical gas sorption results for the MOF. In contrast to the force fields utilized in the aforementioned studies, our simulations include explicit many-body polarization interactions, which was important to reproduce sorption onto the open-metal sites. Simulations using polarizable potentials for the MOF and sorbates generated sorption isotherms and isosteric heat of adsorption (Qst) values that are outstanding agreement with the corresponding experimental data for all three groups; this is in contrast to the theoretical results presented in the respective original references. The simulations carried out in the previous studies often looked reasonable but they missed a key feature of the sorption process that lead to unreliable results. Analysis of the radial distribution function (g(r)) about the open-metal sites and examination of the modeled structure reveal that the CO2 and H2 molecules prefer to sorb onto two unique types of Cu2+ ions that exhibit the highest partial positive charges. Sorption was also observed within the corners of the truncated tetrahedral (T-Td) cages and onto the 1,2,3-triazole groups of the linkers for both sorbates. Overall, this study demonstrates how utilizing a classical polarizable force field led to the reproduction of experimental observables and allowed for an accurate description of the sorption mechanism in this MOF that is an important member of the rht-MOF family.
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Affiliation(s)
- Katherine A Forrest
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, CHE205, Tampa, FL 33620-5250, USA.
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