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Wang G, Wang B, Fan W, Deng N. Enhanced phytoremediation of uranium-contaminated soils by Indian mustard (Brassica juncea L.) using slow release citric acid. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:61061-61071. [PMID: 34165752 DOI: 10.1007/s11356-021-14964-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
In this study, a novel slow release carrier for the controlled release of citric acid (CA), hydroxypropyl chitosan-graft-carboxymethyl-β-cyclodextrin (HPCS-g-CMCD) was synthesized by the grafting reaction of carboxymethyl-β-cyclodextrin (CMCD) with hydroxypropyl chitosan (HPCS), and the structural characteristics of HPCS-g-CMCD were confirmed by FT-IR, TGA, and NMR. Based on HPCS-g-CMCD and CA, slow release citric acid (SRCA) was prepared by a spray drying method. HPCS-g-CMCD carrier has a better slow release performance for CA compared to HPCS and CMCD, and CA release mechanism was attributed to a Fickian diffusion. Furthermore, the release behavior of uranium in contaminated soil could be effectively controlled by SRCA. The effects of SRCA on improving the phytoremediation capacity in uranium-contaminated soil were investigated using Brassica juncea, which were grown in pots containing soil with uranium at 56 mg kg-1. After 50 days of growth, 5 mmol kg-1 of CA, SRCA I, SRCA II, and SRCA III was applied, respectively. The results showed that slow release citric acid could enhance the uptake of uranium in Indian mustard. Uranium concentration in the root with SRCA I treatment was increased by 80.25% compared to the control, and the uranium removal efficiency of the SRCA I treatment was 1.66-fold greater than that of the control. Simultaneously, the leaching loss of uranium in SRCA I-treated soil was decreased by 37.35% compared to CA-treated soil. As a promising remediation strategy, SRCA-assisted phytoremediation may provide a kind of feasible technology with low leaching risk for remediation of uranium-contaminated soils.
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Affiliation(s)
- Guanghui Wang
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, PR, China.
- School of Water Resources & Environmental Engineering, East China University of Technology, Nanchang, 330013, PR, China.
| | - Bing Wang
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, PR, China
| | - Wenzhe Fan
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, PR, China
| | - Nansheng Deng
- School of Resources and Environmental Science, Wuhan University, Wuhan, 430079, China
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Yang S, Guo Q, Wu F, Chu Y, Wang Y, Zhou M, Ding CF. Investigation of noncovalent interactions between peptides with potential intrinsic sequence patterns by mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8736. [PMID: 32040870 DOI: 10.1002/rcm.8736] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/21/2020] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
RATIONALE The conformation of a protein largely depends on the interactions between peptides. Specific and intrinsic sequence peptide patterns, such as DNA double helix backbones, may be present in proteins. A computational statistical deep learning method has supported this assumption, but it has not been experimentally proven. Mass spectrometry, as a fast and accurate experimental method, could be used to evaluate the interaction of biomolecules. The results would be of great value for further study of the mechanism of protein folding. METHODS Several potential intrinsic peptides were chosen by the deep learning method, including seven groups of pentapeptides and five groups of nonapeptides. The noncovalent interactions between mixed polypeptides were investigated by electrospray ionization mass spectrometry (ESI-MS) in full-scan and collision-induced dissociation (CID) modes. Molecular dynamics and molecular mechanics Poisson-Boltzmann surface area (MD-MM/PBSA) analyses were also performed to support the results. RESULTS The ESI-MS spectra showed that 11 of the 12 groups of mixed polypeptides formed binary and ternary complexes with relatively high stability. The binding between nonapeptide groups was stronger than that between pentapeptide groups according to the relative intensity. The binding energies calculated by the MM/PBSA binding energy tool also provided strong evidence for the combination of the complexes. Electrostatic interactions, hydrophobic interactions, and van der Waals forces were thought to stabilize the complexes according to the binding models. CONCLUSIONS The results implied the formation of stable complexes between polypeptides and identified their noncovalent interactions, proving that specific sequences and combinations with relatively strong binding ability exist in potential intrinsic sequences of peptides in protein structures.
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Affiliation(s)
- Shutong Yang
- Laser Chemistry Institute, Department of Chemistry, Fudan University, Handan Road No. 220, Shanghai, 200433, China
| | - Qi Guo
- Laser Chemistry Institute, Department of Chemistry, Fudan University, Handan Road No. 220, Shanghai, 200433, China
| | - Fangling Wu
- Institute of Mass Spectrometry, School of Materials Science & Chemical Engineering, Ningbo University, No 818 Fenghua Rd, Ningbo, Zhejiang, 315211, China
| | - Yanqiu Chu
- Laser Chemistry Institute, Department of Chemistry, Fudan University, Handan Road No. 220, Shanghai, 200433, China
| | - Yuhong Wang
- National Center for Advancing Translational Sciences, 9800 Medical Center Drive, Bethesda, MD, 20850, USA
| | - Mingfei Zhou
- Laser Chemistry Institute, Department of Chemistry, Fudan University, Handan Road No. 220, Shanghai, 200433, China
| | - Chuan-Fan Ding
- Laser Chemistry Institute, Department of Chemistry, Fudan University, Handan Road No. 220, Shanghai, 200433, China
- Institute of Mass Spectrometry, School of Materials Science & Chemical Engineering, Ningbo University, No 818 Fenghua Rd, Ningbo, Zhejiang, 315211, China
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Rehman T, Khirallah J, Demirel E, Howell J, Vlaisavljevich E, Yuksel Durmaz Y. Development of Acoustically Active Nanocones Using the Host-Guest Interaction as a New Histotripsy Agent. ACS OMEGA 2019; 4:4176-4184. [PMID: 31459627 PMCID: PMC6649115 DOI: 10.1021/acsomega.8b02922] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 02/14/2019] [Indexed: 05/04/2023]
Abstract
Histotripsy is a noninvasive and nonthermal ultrasound ablation technique, which mechanically ablates the tissues using very short, focused, high-pressured ultrasound pulses to generate dense cavitating bubble cloud. Histotripsy requires large negative pressures (≥28 MPa) to generate cavitation in the target tissue, guided by real-time ultrasound imaging guidance. The high cavitation threshold and reliance on real-time image guidance are potential limitations of histotripsy, particularly for the treatment of multifocal or metastatic cancers. To address these potential limitations, we have recently developed nanoparticle-mediated histotripsy (NMH) where perfluorocarbon (PFC)-filled nanodroplets (NDs) with the size of ∼200 nm were used as cavitation nuclei for histotripsy, as they are able to significantly lower the cavitation threshold. However, although NDs were shown to be an effective histotripsy agent, they pose several issues. Their generation requires multistep synthesis, they lack long-term stability, and determination of PFC concentration in the treatment dose is not possible. In this study, PFC-filled nanocones (NCs) were developed as a new generation of histotripsy agents to address the mentioned limitations of NDs. The developed NCs represent an inclusion complex of methylated β-cyclodextrin as a water-soluble analog of β-cyclodextrin and perfluorohexane (PFH) as more effective PFC derivatives for histotripsy. Results showed that NCs are easy to produce, biocompatible, have a size <50 nm, and have a quantitative complexation that allows us to directly calculate the PFH amount in the used NC dose. Results further demonstrated that NCs embedded into tissue-mimicking phantoms generated histotripsy cavitation "bubble clouds" at a significantly lower transducer amplitude compared to control phantoms, demonstrating the ability of NCs to function as effective histotripsy agents for NMH.
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Affiliation(s)
- Tanzeel
Ur Rehman
- Department
of Biomedical Engineering, School of Engineering and Natural
Sciences, and Regenerative and Restorative Medicine Research Center (REMER), Istanbul Medipol University, Istanbul 34810, Turkey
| | - Jennifer Khirallah
- Department
of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg 24061, United States
| | - Erhan Demirel
- Department
of Biomedical Engineering, School of Engineering and Natural
Sciences, and Regenerative and Restorative Medicine Research Center (REMER), Istanbul Medipol University, Istanbul 34810, Turkey
| | - Justin Howell
- Department
of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg 24061, United States
| | - Eli Vlaisavljevich
- Department
of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg 24061, United States
- E-mail: (E.V.)
| | - Yasemin Yuksel Durmaz
- Department
of Biomedical Engineering, School of Engineering and Natural
Sciences, and Regenerative and Restorative Medicine Research Center (REMER), Istanbul Medipol University, Istanbul 34810, Turkey
- E-mail: (Y.Y.D.)
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Yao Y, Liu X, Liu T, Zhou J, Zhu J, Sun G, He D. Preparation of inclusion complex of perfluorocarbon compound with β-cyclodextrin for ultrasound contrast agent. RSC Adv 2015. [DOI: 10.1039/c4ra12205d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel FC-77/β-CD inclusion complex was prepared and used as a ultrasound imaging contract to enhance the ultrasonic echo signal.
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Affiliation(s)
- Yanjie Yao
- School of Materials Science and Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Xunwei Liu
- Department of Medical Imaging
- Jinan Military General Hospital
- Jinan
- P. R. China
| | - Tian Liu
- School of Materials Science and Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Juan Zhou
- National Engineering Research Center for Nanotechnology
- Shanghai 200241
- P. R. China
| | - Jun Zhu
- National Engineering Research Center for Nanotechnology
- Shanghai 200241
- P. R. China
| | - Gang Sun
- Department of Medical Imaging
- Jinan Military General Hospital
- Jinan
- P. R. China
| | - Dannong He
- School of Materials Science and Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
- National Engineering Research Center for Nanotechnology
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Sengupta C, Sarangi MK, Sau A, Mandal D, Basu S. A case study of photo induced electron transfer between riboflavin and aliphatic amine: Deciphering different mechanisms of ET operating from femtosecond to microsecond time domain. J Photochem Photobiol A Chem 2015. [DOI: 10.1016/j.jphotochem.2014.09.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Zhang H, Shen J, Liu Z, Bai Y, An W, Hao A. Controllable vesicles based on unconventional cyclodextrin inclusion complexes. Carbohydr Res 2009; 344:2028-35. [DOI: 10.1016/j.carres.2009.06.030] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2008] [Revised: 06/12/2009] [Accepted: 06/22/2009] [Indexed: 10/20/2022]
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