1
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Tarighat MA, Naamdar F. PLSR-colorimetric simultaneous determination of L-Tyrosine and L-Tryptophan in different pharmaceutical and biological samples using one-pot synthesized leaf shape Ag@Ag 2O core-shell nanocomposites modified by β-CD. J Pharm Biomed Anal 2024; 241:115942. [PMID: 38290190 DOI: 10.1016/j.jpba.2023.115942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/06/2023] [Accepted: 12/23/2023] [Indexed: 02/01/2024]
Abstract
In the present study, a simple, innovative, and economically beneficial method has been proposed for the synthesis of Ag@Ag2O core-shell nanocomposites using Acanthophora muscoides algae extract. The host-guest recognition of targets was performed by modification of the Ag@Ag2O surface using β-CD. The Ag@Ag2O- β-CD NCs were used as a colorimetric sensor to determine L-Tryptophan and L-Tyrosine using a partial least square (PLS) approach. A crystalline hybrid structure of Ag core and an Ag2O shell was confirmed by XRD, FTIR, TEM and AFM research. Also, DLS analysis and surface zeta potential spectra illustrated the aggregated nature of nanocomposites in the presence of analytes. The literature review shows that the colorimetric simultaneous determination of L-Tryptophan (L-Try) and L-Tyrosine (L-Tyr) has not been reported. The Ag@Ag2O- β-CD sensor exhibited outstanding sensing capability in a broad linear range of 2.0 -200 μM for both amino acids and low detection limit of 0.32 and 0.51 μM, for L-Try and L-Tyr, respectively. The good sensitivity and excellent selectivity regarding possible interfering species, originated from the synergistic effect of host-guest recognition in combination with colorimetric sensing. Additionally, determination of analytes in various pharmaceutical, supplement and urine samples, approved the practical applicability of the constructed sensor. The computed results confirmed that colorimetric sensing in conjunction with a PLS technique was appropriate for the precise and accurate simultaneous determination of target amino acids in complex mixtures with RMSEP less than 2.5% and recovery in the range of 103-108% with R.S.D. values less than 3%.
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Affiliation(s)
- Maryam Abbasi Tarighat
- Faculty of Nano and Bio Science and Technology, Persian Gulf University, Bushehr 75169, Iran.
| | - Fatemeh Naamdar
- Faculty of Nano and Bio Science and Technology, Persian Gulf University, Bushehr 75169, Iran
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2
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Mohandoss S, Velu KS, Stalin T, Ahmad N, Alomar SY, Lee YR. Tenofovir antiviral drug solubility enhancement with β-cyclodextrin inclusion complex and in silico study of potential inhibitor against SARS-CoV-2 main protease (M pro). J Mol Liq 2023; 377:121544. [PMID: 36874474 PMCID: PMC9968670 DOI: 10.1016/j.molliq.2023.121544] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 02/13/2023] [Accepted: 02/24/2023] [Indexed: 03/03/2023]
Abstract
Tenofovir (TFR) is an antiviral drug commonly used to fight against viral diseases infection due to its good potency and high genetic barrier to drug resistance. In physiological conditions, TFR is less water soluble, more unstable, and less permeable, limiting its effective therapeutic applications. In addition to their use in treating the Coronavirus disease 2019 (COVID-19), cyclodextrins (CDs) are also being used as a molecule to develop therapies for other diseases due to its enhance solubility and stability. This study is designed to synthesize and characterization of β-CD:TFR inclusion complex and its interaction against SARS-CoV-2 (MPro) protein (PDB ID;7cam). Several techniques were used to characterize the prepared β-CD:TFR inclusion complex, including UV-Visible, FT-IR, XRD, SEM, TGA, and DSC, which provided appropriate evidence to confirm the formation. A 1:1 stoichiometry was determined for β-CD:TFR inclusion complex in aqueous medium from UV-Visible absorption spectra by using the Benesi-Hildebrand method. Phase solubility studies proposed that β-CD enhanced the excellent solubility of TFR and the stability constant was obtained at 863 ± 32 M-1. Moreover, the molecular docking confirmed the experimental results demonstrated the most desirable mode of TFR encapsulated into the β-CD nanocavity via hydrophobic interactions and possible hydrogen bonds. Moreover, TFR was validated in the β-CD:TFR inclusion complex as potential inhibitors against SARS-CoV-2 main protease (Mpro) receptors by using in silico methods. The enhanced solubility, stability, and antiviral activity against SARS-CoV-2 (MPro) suggest that β-CD:TFR inclusion complexes can be further used as feasible water-insoluble antiviral drug carriers in viral disease infection.
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Affiliation(s)
- Sonaimuthu Mohandoss
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Kuppu Sakthi Velu
- Department of Industrial Chemistry, Alagappa University, Karikudi 630003, Tamilnadu, India
| | - Thambusamy Stalin
- Department of Industrial Chemistry, Alagappa University, Karikudi 630003, Tamilnadu, India
| | - Naushad Ahmad
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Suliman Yousef Alomar
- Doping Research Chair, Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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3
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Huang Y, Wang YY, An R, Gao EQ, Yue Q. Highly Efficient versus Null Electrochemical Enantioselective Recognition Controlled by Achiral Colinkers in Homochiral Metal-Organic Frameworks. ACS Sens 2023; 8:774-783. [PMID: 36734613 DOI: 10.1021/acssensors.2c02320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Chiral materials capable of electrochemical enantiomeric recognition are highly desirable for many applications, but it is still very challenging to achieve high recognition efficiency for lack of the knowledge of structure-property relationships. Here, we report the completely distinct enantiomeric recognition related to slightly different achiral colinkers in isomorphic homochiral metal-organic frameworks with the same chiral linker. Cu-TBPBe, for which the achiral colinker has two pyridyl rings connected by ─CH═CH─, shows excellent enantioselectivity and sensitivity for electrochemical recognition of l-tryptophan (Trp) with a detection limit of 3.16 nM. The l-to-d ratio of differential pulse voltammetric (DPV) currents reaches 53, which is much higher than the values (2-14) reported for previous electrochemical sensors. By contrast, Cu-TBPBa, in which the achiral colinker has -CH2-CH2- between pyridyl rings, is incapable of discrimination between l-Trp and d-Trp. Structural and spectral analyses suggest that the achiral conjugated colinker and the chiral moieties around it cooperate to produce a chiral pocket in favor of enantioselective adsorption through multiple hydrogen-bonding and π-π stacking interactions. The work demonstrated that Cu-TBPBe can be used to fabricate reliable electrochemical sensors for ultrasensitive quantification of Trp enantiomers in racemic mixtures and in complex biological systems such as urine. The work also highlights that an achiral coligand can be of vital importance in determining enantiomeric discrimination, opening up a new avenue for the design of chiral sensing materials.
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Affiliation(s)
- Yan Huang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Yuan-Yuan Wang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Ran An
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - En-Qing Gao
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Qi Yue
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
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4
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Tyrosine-βcyclodextrin inclusion complexes of cobalt and copper as biocompatible radical scavengers. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Silver nanoparticle decorated γ-cyclodextrin with 1,5-dihydroxy naphthalene inclusion complex; as a sensitive fluorescence probe for dual metal ion sensing employing spectrum techniques. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Sharma M, Kumari M, Rani S, Yadav AK, Solanki PR, Mozumdar S. Influence of pH, β-Cyclodextrin, and Metal Ions on the Solubility and Stability of the Medicinally Competent Isoxazole Derivative of Curcumin: A Photophysical Study. ACS APPLIED BIO MATERIALS 2021; 4:8407-8423. [PMID: 35005944 DOI: 10.1021/acsabm.1c00957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The β-diketo-modified isoxazole derivative of curcumin (IOC) is well renowned for its anticancer, antioxidant, antimalarial, antiproliferative, and many other biological activities. With the aim of obtaining fundamental knowledge on the photophysics of IOC, the present work was directed toward delineating those at different pH environments and studying the degradation profiles of IOC at five different pH values. Because one of the primary drawbacks of curcumin is its rapid degradation at physiological conditions, the studies showed that the problem could be resolved, as the IOC molecule was extremely stable even in a highly alkaline medium. Further, in order to encounter the problems associated with the low solubility of IOC in aqueous media, β-CD (β-cyclodextrin) was used and calculations of the thermodynamic parameters revealed that the process of development of the host-guest inclusion complex was highly spontaneous in nature. The synthesis of the IOC:β-CD inclusion complex has also been accomplished in the solid state, and the solid formed has been characterized using various physicochemical techniques. Finally, while variations in the pH as well as addition of foreign metal ions in +1 and +2 oxidation states showed minimal effect on the photophysics of the IOC:β-CD inclusion complex, antiproliferative studies performed with 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assays revealed their nontoxic nature on fibroblast L929 normal cell lines and extremely toxic activity on human lung cancer A549 cell lines.
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Affiliation(s)
- Manisha Sharma
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Mamta Kumari
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Swati Rani
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Amit K Yadav
- Special Centre for Nanoscience, Jawaharlal Nehru University, New Delhi 110067, India
| | - Pratima R Solanki
- Special Centre for Nanoscience, Jawaharlal Nehru University, New Delhi 110067, India
| | - Subho Mozumdar
- Department of Chemistry, University of Delhi, Delhi 110007, India
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7
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Li T, Wang Y, Kan X. Electrochemical chiral recognition of tryptophan enantiomers based on copper-modified β-cyclodextrin. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115817] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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β-Cyclodextrin Derivative Grafted on Silica Gel Represents a New Polymeric Sorbent for Extracting Nitisinone from Model Physiological Fluids. Molecules 2021; 26:molecules26195945. [PMID: 34641489 PMCID: PMC8512355 DOI: 10.3390/molecules26195945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/21/2021] [Accepted: 09/27/2021] [Indexed: 10/28/2022] Open
Abstract
Nitisinone (NTBC) is used in the treatment of disorders affecting the tyrosine pathway, including hereditary tyrosinemia type I, alkaptonuria, and neuroblastoma. An inappropriate dosage of this therapeutic drug causes side effects; therefore, it is necessary to develop a rapid and sensitive method to monitor the content of NTBC in patients' blood. This study aimed to develop anew polymeric sorbent containing β-cyclodextrin (β-CD) derivatives grafted on silica gel to effectively extract NTBC from model physiological fluids. The inclusion complex formed between β-CD and NTBC was examined by proton nuclear magnetic resonance spectroscopy. The novel sorbents with derivatives of β-CD were prepared on modified silica gel using styrene as a comonomer, ethylene glycol dimethacrylate as a crosslinking agent, and 2,2'-azo-bis-isobutyronitrile as a polymerization initiator. The obtained products were characterized via Fourier transform infrared spectroscopy and then used as sorbents as part of a solid phase extraction technique. High NTBC recovery (70%indicated that the developed polymeric sorbent may be suitable for extracting this compound from patients' blood samples.
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9
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Zhang F, Zhang Y, Kong L, Luo H, Zhang Y, Mäkilä E, Salonen J, Hirvonen JT, Zhu Y, Cheng Y, Deng L, Zhang H, Kros A, Cui W, Santos HA. Multistage signal-interactive nanoparticles improve tumor targeting through efficient nanoparticle-cell communications. Cell Rep 2021; 35:109131. [PMID: 34038723 PMCID: PMC8170549 DOI: 10.1016/j.celrep.2021.109131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 03/05/2021] [Accepted: 04/23/2021] [Indexed: 12/02/2022] Open
Abstract
Communication between biological components is critical for homeostasis maintenance among the convergence of complicated bio-signals. For therapeutic nanoparticles (NPs), the general lack of effective communication mechanisms with the external cellular environment causes loss of homeostasis, resulting in deprived autonomy, severe macrophage-mediated clearance, and limited tumor accumulation. Here, we develop a multistage signal-interactive system on porous silicon particles through integrating the Self-peptide and Tyr-Ile-Gly-Ser-Arg (YIGSR) peptide into a hierarchical chimeric signaling interface with “don’t eat me” and “eat me” signals. This biochemical transceiver can act as both the signal receiver for amantadine to achieve NP transformation and signal conversion as well as the signal source to present different signals sequentially by reversible self-mimicking. Compared with the non-interactive controls, these signal-interactive NPs loaded with AS1411 and tanespimycin (17-AAG) as anticancer drugs improve tumor targeting 2.8-fold and tumor suppression 6.5-fold and showed only 51% accumulation in the liver with restricted hepatic injury. Constructing a signal-interactive NP system improves NP-cell communication efficiency Functional chimeric peptide design enables orderly integrating of multiple signal modules Signal-interactive NPs reduce liver accumulation and promote tumor targeting
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Affiliation(s)
- Feng Zhang
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki 00014, Finland; Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P.R. China
| | - Yiran Zhang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P.R. China
| | - Li Kong
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, P.R. China; Leiden Institute of Chemistry, Leiden University, P.O. Box 9052, 2300 RA Leiden, the Netherlands
| | - Huanhuan Luo
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P.R. China
| | - Yuezhou Zhang
- Xían Institute of Flexible Electronics & Xían Institute of Biomedical Materials and Engineering, Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xían 710072, P.R. China
| | - Ermei Mäkilä
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, 20014 Turku, Finland
| | - Jarno Salonen
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, 20014 Turku, Finland
| | - Jouni T Hirvonen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki 00014, Finland
| | - Yueqi Zhu
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yishan Road, Shanghai 200233, P.R. China
| | - Yingsheng Cheng
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yishan Road, Shanghai 200233, P.R. China
| | - Lianfu Deng
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P.R. China
| | - Hongbo Zhang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P.R. China; Pharmaceutical Sciences Laboratory, Åbo Akademi University; Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku 20520, Finland.
| | - Alexander Kros
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9052, 2300 RA Leiden, the Netherlands
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P.R. China.
| | - Hélder A Santos
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki 00014, Finland; Helsinki Institute of Life Science (HiLIFE), University of Helsinki, 00014 Helsinki, Finland.
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10
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Wu X, Hua Y, Wei T, Ma C, Wang Z, Zhang L, Wang J. Effect and mechanism of action in vitroof cyclodextrin derivative nanoparticles loaded with tyroserleutide on hepatoma. NANOTECHNOLOGY 2021; 32:285101. [PMID: 33789260 DOI: 10.1088/1361-6528/abf3f2] [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: 01/23/2021] [Accepted: 03/31/2021] [Indexed: 06/12/2023]
Abstract
In this study, a cyclodextrin derivative (R6RGD-CMβCD) nanoparticle with tumor targeting and cell penetration ability was successfully synthesized and loaded with tyroserleutide (YSL) to obtain YSL-loaded nanoparticles (YSL/R6RGD-CMβCD NPs). The characterization of these NPs revealed a smooth surfaces and an average diameter of approximately 170 nm. YSL/R6RGD-CMβCD NPs increased the NP uptake in Caco-2 cells. As regard the mechanism of action, the cell uptake was related to endocytosis mediated by reticulin and megacytosis. In addition, YSL/R6RGD-CMβCD NPs induced significantly higher cytotoxicity on tumor cells and better tumor targeting compared with the effect of CMβCD NPs. Most importantly, the good anti-cancer effect of YSL/R6RGD-CMβCD NPs might be due to the interference with the function of mitochondria. On the other hand, YSL/R6RGD-CMβCD NPs were not toxic for normal cells. Taken together, our results indicated that R6RGD-CMβCD could be considered as a nanopharmaceutical material with good tumor targeting abilities, and their combination with YSL could represent an effective anti-cancer system.
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Affiliation(s)
- Xiaoyan Wu
- Pharmacy, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China
| | - Yingying Hua
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, People's Republic of China
| | - Tiantian Wei
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, People's Republic of China
| | - Chenjun Ma
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, People's Republic of China
| | - Zhongjie Wang
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, People's Republic of China
| | - Liefeng Zhang
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, People's Republic of China
| | - Jing Wang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, People's Republic of China
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Behyar MB, Shadjou N. d-Penicillamine functionalized dendritic fibrous nanosilica (DFNS-DPA): synthesise and its application as an innovative advanced nanomaterial towards sensitive quantification of ractopamine. RSC Adv 2021; 11:30206-30214. [PMID: 35480274 PMCID: PMC9041102 DOI: 10.1039/d1ra05655g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 08/19/2021] [Indexed: 12/30/2022] Open
Abstract
During the twentieth century, ractopamine (RAC) as one of the important and frequently used feed additives and doping agents has attracted considerable attention in the animal breeding industry and sports competitions.
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Affiliation(s)
- Milad Baghal Behyar
- Department of Nanotechnology, Faculty of Science and Chemistry, Urmia University, Urmia, Iran
| | - Nasrin Shadjou
- Department of Nanotechnology, Faculty of Science and Chemistry, Urmia University, Urmia, Iran
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12
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Holkar A, Ghodke S, Bangde P, Dandekar P, Jain R. Fluorescence-Based Detection of Cholesterol Using Inclusion Complex of Hydroxypropyl-β-Cyclodextrin and l-Tryptophan as the Fluorescence Probe. J Pharm Innov 2020. [DOI: 10.1007/s12247-020-09503-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Jin Y, Sun W, Lv H, Tong S. Spectral study on inclusion interaction and enantiorecognition of 2‐aryl carboxylic acids with hydroxypropyl‐β‐cyclodextrin. Chirality 2020; 32:1257-1263. [DOI: 10.1002/chir.23276] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 07/22/2020] [Accepted: 07/22/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Yang Jin
- College of Pharmaceutical Science Zhejiang University of Technology Hangzhou China
| | - Wenyu Sun
- College of Pharmaceutical Science Zhejiang University of Technology Hangzhou China
| | - Huawei Lv
- College of Pharmaceutical Science Zhejiang University of Technology Hangzhou China
| | - Shengqiang Tong
- College of Pharmaceutical Science Zhejiang University of Technology Hangzhou China
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Das K, Sarkar B, Roy P, Basak C, Chakraborty R, Gardas RL. Physicochemical investigations of amino acid ionic liquid based inclusion complex probed by spectral and molecular docking techniques. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Jalalvandi E, Shavandi A. Shear thinning/self-healing hydrogel based on natural polymers with secondary photocrosslinking for biomedical applications. J Mech Behav Biomed Mater 2019; 90:191-201. [DOI: 10.1016/j.jmbbm.2018.10.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/01/2018] [Accepted: 10/03/2018] [Indexed: 10/28/2022]
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16
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Lei P, Zhou Y, Zhang G, Zhang Y, Zhang C, Hong S, Yang Y, Dong C, Shuang S. A highly efficient chiral sensing platform for tryptophan isomers based on a coordination self-assembly. Talanta 2018; 195:306-312. [PMID: 30625547 DOI: 10.1016/j.talanta.2018.11.084] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 11/13/2018] [Accepted: 11/22/2018] [Indexed: 01/16/2023]
Abstract
Construction of convenient and effective method for enantiomer identification is of vital significance for biochemistry and medical science. Herein, we design an effective sensor for chiral recognition of tryptophan (Trp) enantiomers, and self-assembly of Cu2+-modified β-cyclodextrin on poly-L-arginine/multi-walled carbon nanotubes (Cu-β-CD/PLA/MWCNTs) is studied. Meanwhile, Cu2+ acts as a cap to prevent the release of the high energy water and compel Trp enantiomer into the smaller opening of β-cyclodextrin. Recognition of L-Trp is accomplished by the formation of hydrogen bonds between the amino of L-Trp and the high energy water confined in cavity of Cu-β-CD. Compared with D-Trp, the sensor exhibits favorable chiral recognition toward L-Trp with a separation coefficient of 3.37. And the chiral sensor presents admirable enantiomers determination with excellent sensitivity, providing a good linear correlation in the range of 1 × 10-6 M~5.5 × 10-5 M, and the detection limit can reach 3.3 × 10-7 M (S/N = 3). Besides, the proposed sensor has been able to predict the percentage of D-Trp in the racemic mixture, suggesting its potential applications in the enantiomer recognition field.
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Affiliation(s)
- Peng Lei
- School of Chemistry and Chemical Engineering, and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Ying Zhou
- School of Chemistry and Chemical Engineering, and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Guomei Zhang
- School of Chemistry and Chemical Engineering, and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Yan Zhang
- School of Chemistry and Chemical Engineering, and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Caihong Zhang
- School of Chemistry and Chemical Engineering, and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Shasha Hong
- School of Chemistry and Chemical Engineering, and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Yajuan Yang
- School of Chemistry and Chemical Engineering, and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Chuan Dong
- School of Chemistry and Chemical Engineering, and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Shaomin Shuang
- School of Chemistry and Chemical Engineering, and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China.
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Majumdar S, Wang X, Sommerfeld SD, Chae JJ, Athanasopoulou EN, Shores LS, Duan X, Amzel LM, Stellacci F, Schein O, Guo Q, Singh A, Elisseeff JH. Cyclodextrin Modulated Type I Collagen Self-Assembly to Engineer Biomimetic Cornea Implants. ADVANCED FUNCTIONAL MATERIALS 2018; 28:1804076. [PMID: 34531709 PMCID: PMC8442673 DOI: 10.1002/adfm.201804076] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Indexed: 05/24/2023]
Abstract
Collagen-rich tissues in the cornea exhibit unique and highly organized extracellular matrix ultrastructures, which contribute to its high load-bearing capacity and light transmittance. Corneal collagen fibrils are controlled during development by small leucine-rich proteoglycans (SLRPs) that regulate the fibril diameter and spacing in order to achieve the unique optical transparency. Cyclodextrins (CDs) of varying size and chemical functionality for their ability to regulate collagen assembly during vitrification process are screened in order to create biosynthetic materials that mimic the native cornea structure. Addition of βCD to collagen vitrigels produces materials with aligned fibers and lamellae similar to native cornea, resulting in mechanically robust and transparent materials. Biochemistry analysis revealed that CD interacts with hydrophobic amino acids in collagen to influence assembly and fibril organization. To translate the self-assembled collagen materials for cornea reconstruction, custom molds for gelation and vitrification are engineered to create βCD/Col implants with curvature matching that of the cornea. Acellular βCD/Col materials are implanted in a rabbit partial keratoplasty model with interrupted sutures. The implants demonstrate tissue integration and support re-epithelialization. Therefore, the addition of CD molecules regulates collagen self-assembly and provides a simple process to engineer corneal mimetic substitutes with advanced structural and functional properties.
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Affiliation(s)
- Shoumyo Majumdar
- Translational Tissue Engineering Center, Johns Hopkins University, Baltimore, MD 21231, USA
| | - Xiaokun Wang
- Translational Tissue Engineering Center, Johns Hopkins University, Baltimore, MD 21231, USA
| | - Sven D Sommerfeld
- Translational Tissue Engineering Center, Johns Hopkins University, Baltimore, MD 21231, USA
| | - Jemin Jeremy Chae
- Translational Tissue Engineering Center, Johns Hopkins University, Baltimore, MD 21231, USA
| | - Evangelia-Nefeli Athanasopoulou
- Supramolecular Nanomaterials and Interfaces Laboratory, École Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland
| | - Lucas S Shores
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | | | - L Mario Amzel
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Francesco Stellacci
- Supramolecular Nanomaterials and Interfaces Laboratory, École Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland
| | - Oliver Schein
- Wilmer Eye Institute, Johns Hopkins School of Medicine Baltimore, MD 21231, USA
| | - Qiongyu Guo
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Anirudha Singh
- Translational Tissue Engineering Center, Johns Hopkins University, Baltimore, MD 21231, USA
| | - Jennifer H Elisseeff
- Translational Tissue Engineering Center, Johns Hopkins University, Baltimore, MD 21231, USA
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18
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Kundu M, Roy MN. Subsistence of inclusion complex via assembly of a drug into cyclic oligosaccharide: Its formation, mechanism, behaviour and importance. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 183:332-338. [PMID: 28458238 DOI: 10.1016/j.saa.2017.04.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 03/30/2017] [Accepted: 04/17/2017] [Indexed: 06/07/2023]
Abstract
The aim of this present work is to make soluble DEPM in aqueous medium through the formation inclusion complex into the hydrophobic hollow space of β-cyclodextrin (β-Cyd) which will provide a novel approach for designing drug delivery system in aqueous medium. The study of supramolecular complexation of DEPM with β-Cyd has been designed in both solution and solid state. In solution phase the evidences of the presence of non-covalent interactions in inclusion complex with 1:1 stoichiometry behaviour are obtained by investigating the UV-spectroscopy. The resultant solid of DEPM and β-Cyd is established by 1H NMR, FTIR, powder XRD and SEM techniques. So, β-Cyd has the ability to encapsulate DEPM into their core without formation any covalent bonds and also increases the bioavailability of the water insoluble DEPM drug.
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Affiliation(s)
- Mitali Kundu
- Department of Chemistry, University of North Bengal, Darjeeling 734013, India
| | - Mahendra Nath Roy
- Department of Chemistry, University of North Bengal, Darjeeling 734013, India.
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19
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Periasamy R, Kothainayaki S, Sivakumar K. Encapsulation of dicinnamalacetone in β-cyclodextrin: A physicochemical evaluation and molecular modeling approach on 1:2 inclusion complex. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2016. [DOI: 10.1080/10601325.2016.1201750] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Faggi E, Pérez Y, Luis SV, Alfonso I. Supramolecular protection from the enzymatic tyrosine phosphorylation in a polypeptide. Chem Commun (Camb) 2016; 52:8142-5. [DOI: 10.1039/c6cc03875a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Two pseudopeptidic cages bind the EYE peptide motif of poly(EY) in buffered water, as shown by NMR and fluorescence spectroscopy. This supramolecular interaction protects the Tyr residues from the enzymatic phosphorylation by PTK.
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Affiliation(s)
- Enrico Faggi
- Department of Biological Chemistry and Molecular Modelling
- IQAC-CSIC
- Barcelona
- Spain
| | | | - Santiago V. Luis
- Department of Inorganic and Organic Chemistry
- ESTCE Universitat Jaume I
- Castellón
- Spain
| | - Ignacio Alfonso
- Department of Biological Chemistry and Molecular Modelling
- IQAC-CSIC
- Barcelona
- Spain
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21
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Periasamy R, Kothainayaki S, Sivakumar K. Preparation, physicochemical analysis and molecular modeling investigation of 2,2′-Bipyridine: β-Cyclodextrin inclusion complex in solution and solid state. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.07.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Gu X, Tao Y, Pan Y, Deng L, Bao L, Kong Y. DNA-Inspired Electrochemical Recognition of Tryptophan Isomers by Electrodeposited Chitosan and Sulfonated Chitosan. Anal Chem 2015; 87:9481-6. [DOI: 10.1021/acs.analchem.5b02683] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaogang Gu
- Jiangsu Key Laboratory of
Advanced Catalytic Materials and Technology, School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, China
| | - Yongxin Tao
- Jiangsu Key Laboratory of
Advanced Catalytic Materials and Technology, School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, China
| | - Yan Pan
- Jiangsu Key Laboratory of
Advanced Catalytic Materials and Technology, School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, China
| | - Linhong Deng
- Jiangsu Key Laboratory of
Advanced Catalytic Materials and Technology, School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, China
| | - Liping Bao
- Jiangsu Key Laboratory of
Advanced Catalytic Materials and Technology, School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, China
| | - Yong Kong
- Jiangsu Key Laboratory of
Advanced Catalytic Materials and Technology, School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, China
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23
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Investigation on inter molecular complexation between 4,4′-methylene-bis(N,N-dimethylaniline) and β-cyclodextrin: Preparation and characterization in aqueous medium and solid state. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.09.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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24
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Antony Muthu Prabhu A, Suresh Kumar G, Fatiha M, Sorimuthu S, Sundar Raj M. Encapsulation of phenylalanine and 3,4-dihydroxyphenylalanine into β-cyclodextrin: Spectral and molecular modeling studies. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.08.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Maity B, Chatterjee A, Ahmed SA, Seth D. Supramolecular interactions of nonsteroidal anti-inflammatory drug in nanochannels of molecular containers: a spectroscopic, thermogravimetric and microscopic investigation. Chemphyschem 2014; 15:3502-14. [PMID: 25146319 DOI: 10.1002/cphc.201402419] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Indexed: 11/11/2022]
Abstract
Supramolecular host-guest complexation between the nonsteroidal anti-inflammatory drug indomethacin (IMC) and molecular containers were investigated. The weakly fluorescent drug molecule becomes highly fluorescent on complexation with different molecular containers, and time-resolved fluorescence emission spectroscopy reveals that the lifetime components of IMC significantly increase in the presence of molecular containers, compared with the lifetimes in neat water. The respective solid host-guest complexes were synthesised and characterised by Fourier transform infrared and (1) H nuclear magnetic resonance spectroscopic analysis. Microscopy techniques were used to analyse modifications of the surface morphology, owing to the formation of supramolecular complexes. The effect of the molecular container on the optical properties of IMC has also been investigated to determine the effect of nanochannels of different size and structure.
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Affiliation(s)
- Banibrata Maity
- Department of Chemistry, Indian Institute of Technology Patna, Patliputra Colony, Patna 800013, Bihar (India), Fax: 91-612-2277383
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26
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Srinivasan K, Stalin T. Study of inclusion complex between 2,6-dinitrobenzoic acid and β-cyclodextrin by 1H NMR, 2D 1H NMR (ROESY), FT-IR, XRD, SEM and photophysical methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 130:105-115. [PMID: 24769381 DOI: 10.1016/j.saa.2014.03.106] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2013] [Revised: 03/19/2014] [Accepted: 03/29/2014] [Indexed: 06/03/2023]
Abstract
The formation of host-guest inclusion complex of 2,6-dinitrobenzoic acid (2,6-DNB) with nano-hydrophobic cavity of β-cyclodextrin (β-CD) in solution phase has been studied by UV-visible spectroscopy and electrochemical analysis (cyclic voltammetry, CV). The effect of acid-base concentrations of 2,6-DNB has been studied in presence and absence of β-CD to determination for the ground state acidity constant (pKa). The binding constant of inclusion complex at 303 K was calculated using Benesi-Hildebrand plot and thermodynamic parameter (ΔG) was also calculated. The solid inclusion complex formation between β-CD and 2,6-DNB was confirmed by 1H NMR, 2D 1H NMR (ROESY), FT-IR, XRD and SEM analysis. A schematic representation of this inclusion process was proposed by molecular docking studies using patch dock server.
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Affiliation(s)
- Krishnan Srinivasan
- School of Chemical Sciences, Department of Industrial Chemistry, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
| | - Thambusamy Stalin
- School of Chemical Sciences, Department of Industrial Chemistry, Alagappa University, Karaikudi 630 003, Tamil Nadu, India.
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27
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Tao Y, Dai J, Kong Y, Sha Y. Temperature-Sensitive Electrochemical Recognition of Tryptophan Enantiomers Based on β-Cyclodextrin Self-Assembled on Poly(l-Glutamic Acid). Anal Chem 2014; 86:2633-9. [DOI: 10.1021/ac403935s] [Citation(s) in RCA: 136] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yongxin Tao
- Jiangsu
Key Laboratory of
Advanced Catalytic Materials and Technology, School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Jiangying Dai
- Jiangsu
Key Laboratory of
Advanced Catalytic Materials and Technology, School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Yong Kong
- Jiangsu
Key Laboratory of
Advanced Catalytic Materials and Technology, School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Yan Sha
- Jiangsu
Key Laboratory of
Advanced Catalytic Materials and Technology, School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, P. R. China
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28
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Stalin T, Srinivasan K, Sivakumar K. Study of the cyclodextrin and its complexation with 2,4-dinitrobenzoic acid through photophysical properties and 2D NMR spectroscopy. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2013.11.048] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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Paramasivaganesh K, Srinivasan K, Manivel A, Anandan S, Sivakumar K, Radhakrishnan S, Stalin T. Studies on inclusion complexation between 4,4′-dihydroxybiphenyl and β-cyclodextrin by experimental and theoretical approach. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.04.072] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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30
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Ghosh S, Fang TH, Uddin M, Hidajat K. Enantioselective separation of chiral aromatic amino acids with surface functionalized magnetic nanoparticles. Colloids Surf B Biointerfaces 2013; 105:267-77. [DOI: 10.1016/j.colsurfb.2012.12.037] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Revised: 12/12/2012] [Accepted: 12/21/2012] [Indexed: 11/25/2022]
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31
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Xu P, Jiang X, Zhou C, Tang K. Study on inclusion interaction of hydrophilic 2-chloromandelic acid with hydroxypropyl-β-cyclodextrin. J INCL PHENOM MACRO 2012. [DOI: 10.1007/s10847-012-0265-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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32
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Srinivasan K, Stalin T, Sivakumar K. Spectral and electrochemical study of host-guest inclusion complex between 2,4-dinitrophenol and β-cyclodextrin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 94:89-100. [PMID: 22516119 DOI: 10.1016/j.saa.2012.03.066] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 03/07/2012] [Accepted: 03/22/2012] [Indexed: 05/31/2023]
Abstract
The formation of host-guest inclusion complex of 2,4-dinitrophenol (2,4-DNP) with nano-hydrophobic cavity of β-cyclodextrin (β-CD) in solution phase was studied by UV-visible spectrophotometer and electrochemical method (cyclic voltammetry, CV). The prototropic behaviors of 2,4-DNP with and without β-CD and the ground state acidity constant (pK(a)) of host-guest inclusion complex (2,4-DNP-β-CD) were studied. The binding constant of inclusion complex at 303K was calculated using Benesi-Hildebrand plot and thermodynamic parameter (ΔG) was also calculated. The solid inclusion complex formation between β-CD and 2,4-DNP was confirmed by (1)H NMR, FT-IR, XRD and SEM analysis. A schematic representation of this inclusion process is proposed by molecular docking studies using PatchDock server.
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Affiliation(s)
- K Srinivasan
- Photoelectrochemical Research Lab, School of Chemical Sciences, Department of Industrial Chemistry, Alagappa University, Karaikudi 630003, Tamilnadu, India
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33
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34
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Chipem FAS, Mishra A, Krishnamoorthy G. The role of hydrogen bonding in excited state intramolecular charge transfer. Phys Chem Chem Phys 2012; 14:8775-90. [DOI: 10.1039/c2cp23879a] [Citation(s) in RCA: 142] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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35
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Wagner BD. Hydrogen bonding of excited states in supramolecular host–guest inclusion complexes. Phys Chem Chem Phys 2012; 14:8825-35. [DOI: 10.1039/c2cp40310b] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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37
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Sebestyén Z, Buvári-Barcza Á, Rohonczy J. pH-dependent complex formation of amino acids with β-cyclodextrin and quaternary ammonium β-cyclodextrin. J INCL PHENOM MACRO 2011. [DOI: 10.1007/s10847-011-0043-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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38
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Yeguas V, Altarsha M, Monard G, López R, Ruiz-López MF. Peptide Binding to β-Cyclodextrins: Structure, Dynamics, Energetics, and Electronic Effects. J Phys Chem A 2011; 115:11810-7. [DOI: 10.1021/jp2053037] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Violeta Yeguas
- Equipe de Chimie et Biochimie Théoriques, SRSMC, Nancy University, CNRS, BP 70239, 54506 Vandœuvre-lès-Nancy, Cedex, France
| | - Muhannad Altarsha
- Equipe de Chimie et Biochimie Théoriques, SRSMC, Nancy University, CNRS, BP 70239, 54506 Vandœuvre-lès-Nancy, Cedex, France
| | - Gérald Monard
- Equipe de Chimie et Biochimie Théoriques, SRSMC, Nancy University, CNRS, BP 70239, 54506 Vandœuvre-lès-Nancy, Cedex, France
| | - Ramón López
- Departamento de Química Física y Analítica, Universidad de Oviedo, C/Julián Clavería 8, 33006 Oviedo, Spain
| | - Manuel F. Ruiz-López
- Equipe de Chimie et Biochimie Théoriques, SRSMC, Nancy University, CNRS, BP 70239, 54506 Vandœuvre-lès-Nancy, Cedex, France
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39
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Srinivasan K, Kayalvizhi K, Sivakumar K, Stalin T. Study of inclusion complex of β-cyclodextrin and diphenylamine: photophysical and electrochemical behaviors. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:169-178. [PMID: 21459035 DOI: 10.1016/j.saa.2011.02.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2010] [Revised: 02/06/2011] [Accepted: 02/16/2011] [Indexed: 05/30/2023]
Abstract
The photophysical, electrochemical and photoprototropic behaviors of diphenylamine (DPA) in aqueous β-cyclodextrin (β-CD) solution have been investigated using absorption spectroscopy and cyclic voltammetric techniques. Absorption of the neutral and cationic form of DPA is enhanced due to the formation of a 1:1 complex with β-CD. The formation of this complex has been confirmed by Benesi-Hildebrand plot and docking studies by RasMol tool methods. The solid complex of β-CD with DPA is investigated by FT-IR, XRD and AFM methods. The thermodynamic parameters (ΔG, ΔH and ΔS) of inclusion process are also determined. The pK(a) values of neutral-monocation equilibria have been determined with absorption (conjugate acid-base) titrations. A mechanism is proposed to explain the inclusion process.
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Affiliation(s)
- K Srinivasan
- Department of Industrial Chemistry, Alagappa University, Karaikudi, Tamilnadu, India
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40
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Srinivasan K, Vaheethabanu J, Manisankar P, Stalin T. Study of inclusion complex of β-cyclodextrin and Ortho-Anisidine; photophysical and electrochemical behaviors. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2010.12.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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41
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Zhu X, Xu S. Determination of L-tyrosine by beta-cyclodextrin sensitized fluorescence quenching method. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 77:566-571. [PMID: 20667765 DOI: 10.1016/j.saa.2010.04.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2009] [Revised: 04/07/2010] [Accepted: 04/28/2010] [Indexed: 05/29/2023]
Abstract
A novel beta-cyclodextrin (beta-CD) sensitized fluorescence quenching method for the determination of l-tyrosine (l-Tyr) with Mo(VI)-phenyl-fluorone (PF) as a fluorescence probe has been developed. The fluorescence intensity of Mo(VI)-PF-beta-CD was diminished as the l-tyrosine was added, the fluorescence quenching value DeltaF=F(beta-CD-Mo-PF)-F(beta-CD-Mo-PF-l-Tyr) was enhanced in beta-CD and there was a linear relationship between the DeltaF and the concentration of l-Tyr. Under the optimal conditions, the linear range of calibration curve for the determination of l-tyrosine was 0.3-20.0microgmL(-1); the detection limit was 0.094microgmL(-1). NaOH (10%, w/v) is the best reagent of hydrolysis in sample preparation. The sensitized mechanism of beta-cyclodextrin was discussed. The method has been applied to the determination of l-tyrosine in spirulina and food samples with satisfactory results.
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Affiliation(s)
- Xiashi Zhu
- Department of Chemistry, Yangzhou University, Yangzhou, Jiangsu 225002, People's Republic of China.
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42
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Petkova GA, Král V. Chiral switch of enzymatic ketone reduction by addition of γ-cyclodextrin. Bioorg Med Chem 2010; 18:6651-6. [DOI: 10.1016/j.bmc.2010.07.070] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Revised: 07/29/2010] [Accepted: 07/30/2010] [Indexed: 11/30/2022]
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43
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A comment on “Preparation of nano-polyethylene fibers using TiCl4/MCM-41 catalytic system”. CATAL COMMUN 2009. [DOI: 10.1016/j.catcom.2008.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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44
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Yang HM, Wang YS, Li JH, Li GR, Wang Y, Tan X, Xue JH, Xiao XL, Kang RH. Synchronous fluorescence determination of urinary 1-hydroxypyrene, beta-naphthol and 9-hydroxyphenanthrene based on the sensitizing effect of beta-cyclodextrin. Anal Chim Acta 2009; 636:51-7. [PMID: 19231355 DOI: 10.1016/j.aca.2009.01.039] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2008] [Revised: 01/15/2009] [Accepted: 01/16/2009] [Indexed: 11/28/2022]
Abstract
A novel method for the simultaneous determination of 1-hydroxypyrene (1-OHP), beta-naphthol (beta-NAP) and 9-hydroxyphenanthrene (9-OHPe) in human urine has been established by using synchronous fluorescence spectrometry. It was based on the fact that synchronous fluorescence spectrometry can resolve the broad-band overlapping of conventional fluorescence spectra, which arise from their similar molecular structures. Only one single scan is needed for quantitative determination of three compounds simultaneously when Deltalambda=15nm is chosen. The signals detected at these three wavelengths, 369.6, 330.0 and 358.0nm, vary linearly when the concentration of 1-OHP, beta-NAP and 9-OHPe is in the range of 2.16x10(-8)-1.50x10(-5)molL(-1), 1.20x10(-7)-1.10x10(-5)molL(-1) and 1.07x10(-7)-3.50x10(-5)molL(-1), respectively. The correlation coefficients for the standard calibration graphs were 0.994, 0.999 and 0.997 (n=7) for 1-OHP, beta-NAP and 9-OHPe, respectively. The limits of detection (LOD) for 1-OHP, beta-NAP and 9-OHPe were 6.47x10(-9)molL(-1), 3.60x10(-8)molL(-1) and 3.02x10(-8)molL(-1)with relative standard deviations (R.S.D.) of 4.70-6.40%, 2.80-4.20%, 3.10-4.90% (n=6), respectively. The method described here had been applied to determine traces of 1-OHP, beta-NAP and 9-OHPe in human urine, and the obtained results were in good agreement with those obtained by the HPLC method. In addition, the interaction modes between beta-cyclodextrin (beta-CD) and 1-OHP, beta-NAP or 9-OHPe, as well as the mechanism of the fluorescence enhancement were also discussed.
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Affiliation(s)
- Hong-Mei Yang
- College of Public Health, University of South China, Hengyang 421001, PR China
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45
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Jiang J, MacLachlan MJ. Cationic guest inclusion in widemouthed Schiff base macrocycles. Chem Commun (Camb) 2009:5695-7. [DOI: 10.1039/b914564h] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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