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Ahmad S, Ahmad N, Islam MS, Ahmad MA, Ercisli S, Ullah R, Bari A, Munir I. Rice seeds biofortification using biogenic ıron oxide nanoparticles synthesized by using Glycyrrhiza glabra: a study on growth and yield ımprovement. Sci Rep 2024; 14:12368. [PMID: 38811671 PMCID: PMC11137158 DOI: 10.1038/s41598-024-62907-1] [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: 02/25/2024] [Accepted: 05/22/2024] [Indexed: 05/31/2024] Open
Abstract
Iron, a crucial micronutrient, is an integral element of biotic vitality. The scarcity of iron in the soil creates agronomic challenges and has a detrimental impact on crop vigour and chlorophyll formation. Utilizing iron oxide nanoparticles (IONPs) via nanopriming emerges as an innovative method to enhance agricultural efficiency and crop health. The objective of this study was to synthesize biogenic IONPs from Glycyrrhiza glabra (G. glabra) plant extract using green chemistry and to evaluate their nanopriming effects on rice seed iron levels and growth. The synthesized IONPs were analyzed using UV-Vis spectroscopy, Fourier-transform infrared spectroscopy (FTIR), Scanning electron microscope (SEM), Transmission electron microscopy (TEM), and Energy-dispersive X-ray (EDX) techniques. The UV-Vis peak at 280 nm revealed the formation of IONPs. SEM and TEM showed that the nanoparticles were spherical and had an average diameter of 23.8 nm. Nanopriming resulted in a substantial enhancement in growth, as seen by a 9.25% and 22.8% increase in shoot lengths for the 50 ppm and 100 ppm treatments, respectively. The yield metrics showed a positive correlation with the concentrations of IONPs. The 1000-grain weight and spike length observed a maximum increase of 193.75% and 97.73%, respectively, at the highest concentration of IONPs. The study indicates that G. glabra synthesized IONPs as a nanopriming agent significantly increased rice seeds' growth and iron content. This suggests that there is a relationship between the dosage of IONPs and their potential for improving agricultural biofortification.
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Affiliation(s)
- Sidra Ahmad
- Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan.
| | - Nayab Ahmad
- Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan
| | - Md Shahinoor Islam
- Department of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh
- Department of Textile Engineering, Daffodil International University, Dhaka, 1341, Bangladesh
| | - Mian Afaq Ahmad
- Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan.
| | - Sezai Ercisli
- Department of Horticulture, Faculty of Agriculture, Ataturk University, 25240, Erzurum, Turkey
| | - Riaz Ullah
- Department of Pharmacognosy College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed Bari
- Department of Pharmacognosy College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Iqbal Munir
- Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan
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2
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Gholizadeh M, Shareghi B, Farhadian S. Elucidating binding mechanisms of naringenin by alpha-chymotrypsin: Insights into non-binding interactions and complex formation. Int J Biol Macromol 2023; 253:126605. [PMID: 37660852 DOI: 10.1016/j.ijbiomac.2023.126605] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/15/2023] [Accepted: 08/28/2023] [Indexed: 09/05/2023]
Abstract
As an inevitable parameter in the description of enzyme properties, the investigation of enzyme-ligand interactions has attracted a lot of attention. Alpha-Chymotrypsin (α-Chy) is essential for protein digestion and plays an important role in human health. Naringenin (NAG) as a potent antioxidant has recently been applied in the pharmaceutical industry. Using multispectral methods and computational simulation techniques, the binding strength of NAG to α-Chy was investigated in this research. UV-vis and fluorescence quenching data showed significant spectral changes upon binding of NAG to α-Chy. As demonstrated by fluorescence techniques, NAG could employ a static quenching process to decrease the intrinsic fluorescence of α-Chy. Both circular dichroism (CD) and FTIR spectroscopic analyses revealed that binding of NAG to α-Chy caused more flexible conformation. The slight increases in RMSD (0.06 nm) were observed for the NAG-(α-Chy) compound was supported by the results of thermal stability data. Docking computation confirmed that hydrogen and Van der Waals interactions are the important forces, which is in exact agreement with thermodynamics studies. Kinetic analysis of the enzyme showed an increase in activity, which was consistent, with the MD simulation results. The findings from the in-silico studies were in complete agreement with the experimental results.
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Affiliation(s)
- Mohammad Gholizadeh
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, P. O. Box 115, Iran; Central Laboratory, Shahrekord University, Shahrekord, Iran
| | - Behzad Shareghi
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, P. O. Box 115, Iran; Central Laboratory, Shahrekord University, Shahrekord, Iran.
| | - Sadegh Farhadian
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, P. O. Box 115, Iran; Central Laboratory, Shahrekord University, Shahrekord, Iran.
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3
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Sewariya S, Sehrawat H, Mishra N, Singh MB, Singh P, Kukreti S, Chandra R. Comparative assessment of 9-bromo noscapine ionic liquid and noscapine: Synthesis, in-vitro studies plus computational & biophysical evaluation with human hemoglobin. Int J Biol Macromol 2023; 247:125791. [PMID: 37442512 DOI: 10.1016/j.ijbiomac.2023.125791] [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: 04/15/2023] [Revised: 06/23/2023] [Accepted: 07/09/2023] [Indexed: 07/15/2023]
Abstract
Noscapine is a proficient anticancer drug active against wide variety of tumors including lung cancer. Over time, several noscapine analogues have been assessed to maximize the efficiency of the drug, amongst which 9-bromo noscapine remains one of the most potent analogues till date. In the present work, we have synthesized 9-bromo noscapine ionic liquid [9-Br-Nos]IBr2, an active pharmaceutical ingredient based ionic liquid (API-IL) to address the existing issues of solubility and targeted drug delivery in the parent alkaloid as well as the synthesized analogues. We have devised a novel two-step synthesis route (first-ever ionic to ionic bromination) to obtain the desired [9-Br-Nos]IBr2 which is advantageous to its organic analogue in terms of increased solubility, lesser reaction time and better yield. Furthermore, we have compared 9-bromo noscapine ionic liquid with noscapine based on its binding interaction with human hemoglobin (Hb) studied via computational along with spectroscopic studies, and bioactivity against non-small cell lung cancer. We inferred formation of a complex between [9-Br-Nos]IBr2 and Hb in the stoichiometric ratio of 1:1, similar to noscapine. At 298 K, [9-Br-Nos]IBr2-Hb binding was found to exhibit Kb and ∆G of 36,307 M-1 and -11.5 KJmol-1, respectively, as compared to 159 M-1 and -12.5 KJmol-1 during Noscapine-Hb binding. This indicates a more stronger and viable interaction between [9-Br-Nos]IBr2 and Hb than the parent compound. From computational studies, the observed higher stability of [9-Br-Nos]I and better binding affinity with Hb with a binding energy of -91.75 kcalmol-1 supported the experimental observations. In the same light, novel [9-Br-Nos]IBr2 was found to exhibit an IC50 = 95.02 ± 6.32 μM compared to IC50 = 128.82 ± 2.87 μM for noscapine on A549 (non-small lung cancer) cell line at 48 h. Also, the desired ionic liquid proved to be more cytotoxic inducing a mortality rate of 87 % relative to 66 % evoked by noscapine at concentrations of 200 μM after 72 h.
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Affiliation(s)
- Shubham Sewariya
- Department of Chemistry, University of Delhi, Delhi 110007, India; Maharaja Surajmal Brij University, Rajasthan - 321201, India
| | - Hitesh Sehrawat
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Nistha Mishra
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Madhur Babu Singh
- Atma Ram Sanatan Dharma College, University of Delhi, Delhi 110007, India
| | - Prashant Singh
- Atma Ram Sanatan Dharma College, University of Delhi, Delhi 110007, India
| | - Shrikant Kukreti
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Ramesh Chandra
- Department of Chemistry, University of Delhi, Delhi 110007, India; Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India; Institute of Nano Medical Sciences, University of Delhi, Delhi 110007, India; Maharaja Surajmal Brij University, Rajasthan - 321201, India.
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Altin-Yavuzarslan G, Brooks SM, Yuan SF, Park JO, Alper HS, Nelson A. Additive Manufacturing of Engineered Living Materials with Bio-augmented Mechanical Properties and Resistance to Degradation. ADVANCED FUNCTIONAL MATERIALS 2023; 33:2300332. [PMID: 37810281 PMCID: PMC10553028 DOI: 10.1002/adfm.202300332] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Indexed: 10/10/2023]
Abstract
Engineered living materials (ELMs) combine living cells with polymeric matrices to yield unique materials with programmable functions. While the cellular platform and the polymer network determine the material properties and applications, there are still gaps in our ability to seamlessly integrate the biotic (cellular) and abiotic (polymer) components into singular material, then assemble them into devices and machines. Herein, we demonstrated the additive-manufacturing of ELMs wherein bioproduction of metabolites from the encapsulated cells enhanced the properties of the surrounding matrix. First, we developed aqueous resins comprising bovine serum albumin (BSA) and poly(ethylene glycol diacrylate) (PEGDA) with engineered microbes for vat photopolymerization to create objects with a wide array of 3D form factors. The BSA-PEGDA matrix afforded hydrogels that were mechanically stiff and tough for use in load-bearing applications. Second, we demonstrated the continuous in situ production of L-DOPA, naringenin, and betaxanthins from the engineered cells encapsulated within the BSA-PEGDA matrix. These microbial metabolites bioaugmented the properties of the BSA-PEGDA matrix by enhancing the stiffness (L-DOPA) or resistance to enzymatic degradation (betaxanthin). Finally, we demonstrated the assembly of the 3D printed ELM components into mechanically functional bolts and gears to showcase the potential to create functional ELMs for synthetic living machines.
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Affiliation(s)
- Gokce Altin-Yavuzarslan
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington 98195, United States
- Department of Chemistry, University of Washington, Box 351700, Seattle, WA, USA
| | - Sierra M. Brooks
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Shuo-Fu Yuan
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX, USA
| | - James O. Park
- Department of Surgery, University of Washington, Seattle, Washington 98195, United States
| | - Hal S. Alper
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX, USA
| | - Alshakim Nelson
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington 98195, United States
- Department of Chemistry, University of Washington, Box 351700, Seattle, WA, USA
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5
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Tavakoli Hafshajani K, Sohrabi N, Eslami Moghadam M, Oftadeh M. Spectroscopy and molecular dynamic study of the interaction of calf thymus DNA by anticancer Pt complex with butyl glycine ligand. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 299:122826. [PMID: 37216815 DOI: 10.1016/j.saa.2023.122826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 04/29/2023] [Accepted: 05/04/2023] [Indexed: 05/24/2023]
Abstract
Despite the past few decades since the discovery of anticancer drugs, there is still no definitive treatment for its treatment. Cisplatin is a chemotherapy medication used to treat some cancers. In this research, the DNA binding affinity of Pt complex with butyl glycine ligand was studied by various spectroscopy methods and simulation studies. Fluorescence and UV-Vis spectroscopic data showed groove binding in ct-DNA-[Pt(NH3)2(butylgly)]NO3 complex formation by the spontaneous process. The results were also confirmed by small changes in CD spectra and thermal study (Tm), as well as the quenching emission of [Pt(NH3)2(butylgly)]NO3 complex on DNA. Finally, thermodynamic and binding parameters displayed that hydrophobic forces are the main forces. Based on docking simulation, [Pt(NH3)2(butylgly)]NO3 could bind to DNA and via minor groove binding on C-G center on DNA, formed a stable DNA complex.
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Affiliation(s)
| | - Nasrin Sohrabi
- Department of Chemistry, Payame Noor University (PNU), P.O.Box 19395-4697, Tehran, Iran.
| | | | - Mohsen Oftadeh
- Department of Chemistry, Payame Noor University (PNU), P.O.Box 19395-4697, Tehran, Iran
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Gao S, Lv R, Hao N, Wang H, Lv Y, Li Y, Ji Y, Liu Y. Fabrication of pH/photothermal-responsive ZIF-8 nanocarriers loaded with baicalein for effective drug delivery and synergistic chem-photothermal effects. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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7
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Millan S, Susrisweta B, Sahoo H. Probing the interaction between niobium pentoxide nanoparticles and serum albumin proteins by Spectroscopic approaches. J Biomol Struct Dyn 2023; 41:15435-15445. [PMID: 36931873 DOI: 10.1080/07391102.2023.2188944] [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: 07/05/2022] [Accepted: 03/01/2023] [Indexed: 03/19/2023]
Abstract
Nanoparticles (NPs) can directly or indirectly enter into the body because of their small size; then they tend to alter the conformation and function of proteins upon interaction with them. Thus, it is crucial to understand the impact of NPs in a biological medium. Recently, niobium pentoxide nanoparticles (Nb2O5 NPs) are finding increasing applications in the biological system, for example, bone tissue and dental material, matrix for biosensing of proteins, etc. In all such applications, the Nb2O5 NP interacts with proteins and other biomolecules. Hence, the study of such interactions is of considerable importance. Here in this work, we present the impact of Nb2O5 NP on the structure, stability and activity of blood proteins, bovine serum albumin (BSA) and human serum albumin (HSA) by means of various spectroscopic approaches. Steady-state fluorescence studies indicated that intrinsic fluorescence intensities of both serum albumin proteins got quenched upon their interaction with NP. The nature of the quenching was elucidated by time-resolved fluorescence and absorption measurements. Using circular dichroism (CD) and synchronous fluorescence spectroscopy (SFS), the structural perturbations of the protein molecules after interaction with NP were investigated. Moreover, the role of temperature on protein stability upon complexation with NP was also explored. In addition, the effect of NP on protein functionality was probed by esterase-like activity assays.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sabera Millan
- Department of Chemistry, National Institute of Technology (NIT) Rourkela, Sundergarh, Odisha, India
| | - Behera Susrisweta
- Department of Chemistry, National Institute of Technology (NIT) Rourkela, Sundergarh, Odisha, India
| | - Harekrushna Sahoo
- Department of Chemistry, National Institute of Technology (NIT) Rourkela, Sundergarh, Odisha, India
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8
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Eslami-Farsani R, Farhadian S, Shareghi B, Momeni L. molecular interaction of ethylene glycol to hurt Myoglobin: Insights from spectroscopic and molecular modeling studies. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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9
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Bashir M, Dar AA, Yousuf I. Syntheses, Structural Characterization, and Cytotoxicity Assessment of Novel Mn(II) and Zn(II) Complexes of Aroyl-Hydrazone Schiff Base Ligand. ACS OMEGA 2023; 8:3026-3042. [PMID: 36713712 PMCID: PMC9878661 DOI: 10.1021/acsomega.2c05927] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 12/30/2022] [Indexed: 06/15/2023]
Abstract
This work describes the syntheses, structural characterization, and biological profile of Mn(II)- and Zn(II)-based complexes 1 and 2 derived from the aroyl-hydrazone Schiff base ligand (L1). The synthesized compounds were thoroughly characterized by elemental analysis, Fourier transform infrared spectroscopy (FTIR), UV-vis, electron paramagnetic resonance (EPR), nuclear magnetic resonance (NMR), and single-crystal X-ray diffraction (s-XRD). Density functional theory (DFT) studies of complexes 1 and 2 were performed to ascertain the structural and electronic properties. Hirshfeld surface analysis was used to investigate different intermolecular interactions that define the stability of crystal lattice structures. To ascertain the therapeutic potential of complexes 1 and 2, in vitro interaction studies were carried out with ct-DNA and bovine serum albumin (BSA) using analytical and multispectroscopic techniques, and the results showed more avid binding of complex 2 than complex 1 and L1. The antioxidant potential of complexes 1 and 2 was examined against the 2,2-diphenyl picrylhydrazyl (DPPH) free radical, which revealed better antioxidant ability of the Mn(II) complex. Moreover, the antibacterial activity of synthesized complexes 1 and 2 was tested against Gram-positive and Gram-negative bacteria in which complex 2 demonstrated more effective bactericidal activity than L1 and complex 1 toward Gram-positive bacteria. Furthermore, the in vitro cytotoxicity assessment of L1 and complexes 1 and 2 was carried out against MDA-MB-231 (triple negative breast cancer) and A549 (lung) cancer cell lines. The cytotoxic results revealed that the polymeric Zn(II) complex exhibited better and selective cytotoxicity against the A549 cancer cell line as was evidenced by its low IC50 value.
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Affiliation(s)
- Masrat Bashir
- Department
of Chemistry, Aligarh Muslim University, Aligarh202002, Uttar Pradesh, India
| | - Aijaz A. Dar
- Department
of Chemistry, University of Kashmir, Hazratbal, Srinagar190006, Jammu & Kashmir, India
| | - Imtiyaz Yousuf
- Department
of Chemistry, Aligarh Muslim University, Aligarh202002, Uttar Pradesh, India
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10
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Synthesis, structural characterization and in vitro cytotoxicity assessment of new mononuclear Cu(II) and Co(II) complexes against MDA–MB–231, HCC–1806 and HT–29 cancer cell lines. Polyhedron 2023. [DOI: 10.1016/j.poly.2022.116189] [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]
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11
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Dukhopelnykov EV, Blyzniuk YN, Skuratovska AA, Bereznyak EG, Gladkovskaya NA. Interaction of doxorubicin delivered by superparamagnetic iron oxide nanoparticles with DNA. Colloids Surf B Biointerfaces 2022; 219:112815. [PMID: 36108366 DOI: 10.1016/j.colsurfb.2022.112815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 08/24/2022] [Accepted: 08/27/2022] [Indexed: 11/18/2022]
Abstract
We studied the interaction of superparamagnetic iron oxide nanoparticles (SPIONs), covered by trisodium citrate, with doxorubicin (DOX) and DNA using the spectrophotometric method. We calculated the binding parameters in the binary (DOX-SPION and SPION-DNA) and the ternary (DOX-SPION-DNA) systems. Our studies showed that the nanoparticles do not interact with DNA. We also observed that one nanoparticle loads rather a large number of DOX molecules with a quite high binding constant value (kDOX-SPION = 1.2 × 104 M-1). The DNA addition to the DOX-SPION system induces DOX release from the SPION surface and the formation of DOX-DNA complexes. The presence of nanoparticles has almost no effect on the constant of doxorubicin binding to DNA (kDOX-DNA ≈ 3 × 104 M-1). At high DNA concentrations, almost all DOX molecules bind to DNA. Accordingly, the use of SPIONs as DOX carriers does not require an increased drug dose to achieve a therapeutic effect. Thus, SPIONs are perspective nanocarriers for DOX delivery.
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Affiliation(s)
- E V Dukhopelnykov
- O.Ya. Usikov Institute for Radiophysics and Electronics of National Academy of Sciences of Ukraine, Ak. Proskury str., 12, Kharkiv 61085, Ukraine.
| | - Yu N Blyzniuk
- O.Ya. Usikov Institute for Radiophysics and Electronics of National Academy of Sciences of Ukraine, Ak. Proskury str., 12, Kharkiv 61085, Ukraine
| | - A A Skuratovska
- O.Ya. Usikov Institute for Radiophysics and Electronics of National Academy of Sciences of Ukraine, Ak. Proskury str., 12, Kharkiv 61085, Ukraine
| | - E G Bereznyak
- O.Ya. Usikov Institute for Radiophysics and Electronics of National Academy of Sciences of Ukraine, Ak. Proskury str., 12, Kharkiv 61085, Ukraine
| | - N A Gladkovskaya
- O.Ya. Usikov Institute for Radiophysics and Electronics of National Academy of Sciences of Ukraine, Ak. Proskury str., 12, Kharkiv 61085, Ukraine
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Tian J, Shi Z, Wang G. Thermodynamic and Kinetic Binding Behaviors of Human Serum Albumin to Silver Nanoparticles. MATERIALS 2022; 15:ma15144957. [PMID: 35888425 PMCID: PMC9323290 DOI: 10.3390/ma15144957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/21/2022] [Accepted: 07/07/2022] [Indexed: 12/04/2022]
Abstract
A nanoparticle, under biological milieu, is inclined to be combined with various biomolecules, particularly protein, generating an interfacial corona which provides a new biological identity. Herein, the binding interaction between silver nanoparticles (AgNPs) and human serum albumin (HSA) was studied with transmission electron microscopy (TEM), circular dichroism (CD), and multiple spectroscopic techniques. Due to the ground state complex formed mainly through hydrophobic interactions, the fluorescence titration method proved that intrinsic fluorescence for HSA was probably statically quenched by AgNPs. The complete thermodynamic parameters were derived, indicating that the interaction between HSA and AgNPs is an entropy-driven process. Additionally, synchronous fluorescence and CD spectrum results suggested the conformational variation it has upon binding to AgNPs and the α-helix content has HSA visibly decreased. The kinetic experiments proved the double hysteresis effect has in HSA’s binding to the AgNPs surface. Moreover, the binding has between HSA and AgNPs follows the pseudo-second-order kinetic characteristic and fits the Freundlich model for multilayer adsorption. These results facilitate the comprehension about NPs’ underlying biological effects under a physiological environment and promote the secure applications of NPs biologically and medically.
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Affiliation(s)
- Jinjun Tian
- Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang 473004, China;
| | - Zhenghai Shi
- Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang 473004, China;
- Correspondence: (Z.S.); (G.W.)
| | - Gongke Wang
- School of Materials Science and Engineering, Henan Normal University, Xinxiang 453007, China
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
- Correspondence: (Z.S.); (G.W.)
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13
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Ng YZ, Tan KW, Chung LY, Salim F, Low ML, Ooi IH, Yip FW, Ng CH. Zinc(II)-Schiff base complex functionalized on gold nanospheres: synthesis, characterization, anticancer study and interaction with proteins. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2097869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Yin Zhuang Ng
- Chemistry Department, University of Malaya, Kuala Lumpur, Malaysia
| | - Kong Wai Tan
- Chemistry Department, University of Malaya, Kuala Lumpur, Malaysia
| | - Lip Yong Chung
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Malaya, Kuala Lumpur, Malaysia
| | - Fatimah Salim
- Atta-ur-Rahman Institute for Natural Product Discovery (AuRIns), Universiti Teknologi Mara, Selangor, Malaysia
| | - May Lee Low
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
| | - Ing Hong Ooi
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
| | - Foo Win Yip
- Department of Chemistry, Faculty of Science, Universiti Tunku Abdul Rahman, Kampar, Perak, Malaysia
| | - Chew Hee Ng
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
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14
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Mittal A, Gandhi S, Roy I. Mechanistic interaction studies of synthesized ZIF-8 nanoparticles with bovine serum albumin using spectroscopic and molecular docking approaches. Sci Rep 2022; 12:10331. [PMID: 35725759 PMCID: PMC9209420 DOI: 10.1038/s41598-022-14630-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 05/17/2022] [Indexed: 11/29/2022] Open
Abstract
Numerous studies have shown that nanosized zeolitic imidazolate framework particles (ZIF-8 NPs) serve as promising vehicles for pH-responsive drug delivery. An understanding of their interaction with serum proteins present in physiological systems will thus be of critical importance. In this work, monodisperse ZIF-8 NPs with an average size of 60 nm were synthesized at room temperature and characterized for their various physicochemical properties. Bovine serum albumin (BSA) was used as model serum protein for various interaction studies with ZIF-8 NPs. Spectroscopic techniques such as UV–visible and fluorescence spectroscopy indicated the formation of a ground-state complex with a binding constant of the order 103 M−1 and a single binding site. Steady-state and time-resolved fluorescence spectroscopy confirmed the mechanism of quenching to be static. Conformational changes in the secondary structure of BSA were observed using CD and FT-IR spectroscopies. Binding sites were explored using molecular docking studies.
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Affiliation(s)
- Ashi Mittal
- Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Sona Gandhi
- Department of Chemistry, University of Delhi, Delhi, 110007, India.,Department of Chemistry, Galgotias University, Greater Noida, 203201, India
| | - Indrajit Roy
- Department of Chemistry, University of Delhi, Delhi, 110007, India.
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15
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Bashir M, Yousuf I, Prakash Prasad C. Mixed Ni(II) and Co(II) complexes of nalidixic acid drug: Synthesis, characterization, DNA/BSA binding profile and in vitro cytotoxic evaluation against MDA-MB-231 and HepG2 cancer cell lines. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 271:120910. [PMID: 35077983 DOI: 10.1016/j.saa.2022.120910] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 01/06/2022] [Accepted: 01/15/2022] [Indexed: 06/14/2023]
Abstract
In this work, herein we report the synthesis, structural characterization and in vitro cytotoxic evaluation of two mixed Co(II)/Ni(II)-nalidixic acid-bipyridyl complexes (1 and 2). The structural analysis of metal complexes 1 and 2 was carried out by analytical and multispectroscopic techniques (FT-IR, UV-vis, EPR, sXRD). The crystallographic details of complexes 1 and 2 revealed a monoclinic crystal system with P21/c space group. DFT studies of complexes were performed to get electronic structure and localization of HOMO and LUMO electron densities. Hirshfeld surface analysis of metal complexes 1 and 2 was employed to understand the various intermolecular interactions (C-H···O, N-H···H and O-H···O) that define the stability of crystal lattice structures. The comparative interaction studies of complex 1 and complex 2 with DNA/BSA were performed by diverse multispectroscopic and analytical techniques to evaluate their chemotherapeutic potential. The magnitude of the DNA binding propensity and binding mode was verified by calculating Kb, K and Ksv values. Higher binding affinity was observed in case of complex 2via intercalative mode. Furthermore, the cytotoxic assessment of complexes 1 and 2 was examined against MDA-MB-231 (triple negative human breast cancer cell line) and HepG2 (liver carcinoma cell line) employing MTT assay which revealed remarkably effecient and specific cytotoxic activity of complex 2.
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Affiliation(s)
- Masrat Bashir
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Imtiyaz Yousuf
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India.
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17
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Yu Q, Li M, Chen H, Xu L, Cheng J, Lin G, Liu Y, Su Z, Yang X, Li Y, Chen J, Xie J. The discovery of berberine erythrocyte-hemoglobin self-assembly delivery system: a neglected carrier underlying its pharmacokinetics. Drug Deliv 2022; 29:856-870. [PMID: 35277093 PMCID: PMC8920379 DOI: 10.1080/10717544.2022.2036870] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Berberine (BBR) has extremely low concentration and high tissue distribution. However, current pharmacokinetic studies predominantly focus on its concentration in plasma, which could hardly make a comprehensive understanding of its pharmacokinetic process. This study made a pioneering endeavor to explore the erythrocyte-hemoglobin (Hb) self-assembly system of BBR by exploring the interaction of BBR with erythrocyte and the combination of BBR with Hb. Results showed that BBR had a low bioavailability (C0 = 2.833 μg/mL via intravenous administration of 2.5 mg/kg BBR and Cmax = 0.260 μg/mL via oral administration of 400 mg/kg BBR). Besides, BBR achieved higher concentrations in erythrocytes than plasma, and the erythrocytes count and Hb content were significantly decreased after intravenous administration. Hemolysis rate indicated the BBR-erythrocyte system (with 2% erythrocytes) was relatively stable without hemolysis at the concentration of 1.00 mg/mL. And the maximum percentage of drug loading was 100% when the BBR-erythrocyte concentration was 0.185 μg/mL. Furthermore, incubation of BBR and erythrocytes resulted in internalization of the erythrocyte membrane and the formation of intracellular vacuoles. The thermodynamic parameters indicated that the binding process of bovine hemoglobin (BHB) and BBR was spontaneous. UV-vis absorption spectra, synchronous fluorescence, circular dichroism and Raman spectra collectively indicated that BBR showed strong binding affinity toward BHB and affected the molecular environment of residues like tryptophan and tyrosine in BHB, resulting in the conformational changes of its secondary and tertiary structure. Molecular docking indicated BBR interacted with Arg-141 residue of BHB via hydrogen bond with the bond length of 2.55 Å. The ΔG value of the BHB-BBR system was −31.79 kJ/mol. Molecular dynamics simulation indicated the root mean square derivation of BBR-BHB was <0.025 nm, suggestive of stable conformation. Cumulatively, there was an erythrocyte-Hb self-assembled drug delivery system after oral or intravenous administration of BBR, which conceivably gained novel insight into the discrepancy between the extremely low plasma concentration and relatively high tissue concentration of BBR.
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Affiliation(s)
- Qiuxia Yu
- The Second Clinical College of Guangzhou, University of Chinese Medicine, Guangzhou, China
| | - Minhua Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hanbin Chen
- The First Affiliated Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lieqiang Xu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Juanjuan Cheng
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Guoshu Lin
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuhong Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ziren Su
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaobo Yang
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou, China
| | - Yucui Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiannan Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jianhui Xie
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou, China
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Synthesis, structural characterization and in vitro cytotoxic evaluation of mixed Cu(II)/Co(II) levofloxacin–bipyridyl complexes. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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19
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Li L, Zhang Q, Chen B, Guo M, Yang Q, Zhang Y, Zhang M. Nano-Bio Interface-Guided Nanoparticle Protein Corona Antigen for Immunoassays and Immunoimaging in a Complex Matrix. ACS APPLIED BIO MATERIALS 2022; 5:841-852. [PMID: 35113530 DOI: 10.1021/acsabm.1c01231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Engineered nanoparticles are widely used in biological imaging and drug delivery because of their excellent physical and chemical properties, but almost all the original functions of engineered nanoparticles suffer from a complex matrix. Herein, we proposed a strategy of preparing nanoparticle protein corona antigens (NPCAgs) through exposing a magnetic core silicon shell (Fe3O4@SiO2) fluorescent probe to an antigen protein solution, which could reduce the adsorption of nanoparticles (NPs) with other proteins in serum. In the presence of target anti-BSA IgG, a competitive-type displacement reaction was implemented between NPs@BSA and other proteins by target anti-BSA IgG through the specific antigen-antibody reaction. In addition, secondary structure analysis showed that almost all of the NPCAgs retained their natural conformation, which ensured the function of the NPCAgs, specifically capturing an antibody. Therefore, the NPCAgs showed good performance in immunoassays and immunoimaging, which should shed light on the application in imaging and identification of other nanomaterials.
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Affiliation(s)
- Lei Li
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Qi Zhang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Biru Chen
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Ming Guo
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Qianqian Yang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Yuzhong Zhang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Mingcui Zhang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
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Wu Z, Dai L, Tang K, Ma Y, Song B, Zhang Y, Li J, Lui S, Gong Q, Wu M. Advances in magnetic resonance imaging contrast agents for glioblastoma-targeting theranostics. Regen Biomater 2021; 8:rbab062. [PMID: 34868634 PMCID: PMC8634494 DOI: 10.1093/rb/rbab062] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/20/2021] [Accepted: 11/02/2021] [Indexed: 02/07/2023] Open
Abstract
Glioblastoma (GBM) is the most aggressive malignant brain tumour, with a median survival of 3 months without treatment and 15 months with treatment. Early GBM diagnosis can significantly improve patient survival due to early treatment and management procedures. Magnetic resonance imaging (MRI) using contrast agents is the preferred method for the preoperative detection of GBM tumours. However, commercially available clinical contrast agents do not accurately distinguish between GBM, surrounding normal tissue and other cancer types due to their limited ability to cross the blood–brain barrier, their low relaxivity and their potential toxicity. New GBM-specific contrast agents are urgently needed to overcome the limitations of current contrast agents. Recent advances in nanotechnology have produced alternative GBM-targeting contrast agents. The surfaces of nanoparticles (NPs) can be modified with multimodal contrast imaging agents and ligands that can specifically enhance the accumulation of NPs at GBM sites. Using advanced imaging technology, multimodal NP-based contrast agents have been used to obtain accurate GBM diagnoses in addition to an increased amount of clinical diagnostic information. NPs can also serve as drug delivery systems for GBM treatments. This review focuses on the research progress for GBM-targeting MRI contrast agents as well as MRI-guided GBM therapy.
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Affiliation(s)
- Zijun Wu
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lixiong Dai
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Ke Tang
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yiqi Ma
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Bin Song
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yanrong Zhang
- Department of Radiology, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Jinxing Li
- Department of Radiology, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Su Lui
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Min Wu
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
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Rahman AJ, Kaur L, Pathak M, Singh A, Verma P, Singhal R, Kumar V, Ojha H. Spectroscopic studies of binding interactions of 2-chloroethylphenyl sulphide with bovine serum albumin. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117144] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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22
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Evaluation of interactions between food colorant, tartrazine, and Apo-transferrin using spectroscopic analysis and docking simulation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116715] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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23
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Heibati-Goojani F, Farhadian S, Shareghi B, Shahraki FH, Ziaee E. Insights into the binding mechanism of Putrescine on α-amylase by multiple spectroscopic techniques and molecular docking. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130702] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Pieretti JC, Beurton J, Munevar J, Nagamine LCCM, Le Faou A, Seabra AB, Clarot I, Boudier A. The Impact of Multiple Functional Layers in the Structure of Magnetic Nanoparticles and Their Influence on Albumin Interaction. Int J Mol Sci 2021; 22:ijms221910477. [PMID: 34638818 PMCID: PMC8508928 DOI: 10.3390/ijms221910477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/15/2021] [Accepted: 09/23/2021] [Indexed: 11/19/2022] Open
Abstract
In nanomedicine, hybrid nanomaterials stand out for providing new insights in both the diagnosis and treatment of several diseases. Once administered, engineered nanoparticles (NPs) interact with biological molecules, and the nature of this interaction might directly interfere with the biological fate and action of the NPs. In this work, we synthesized a hybrid magnetic nanostructure, with antibacterial and antitumoral potential applications, composed of a magnetite core covered by silver NPs, and coated with a modified chitosan polymer. As magnetite NPs readily oxidize to maghemite, we investigated the structural properties of the NPs after addition of the two successive layers using Mössbauer spectroscopy. Then, the structural characteristics of the NPs were correlated to their interaction with albumin, the major blood protein, to evidence the consequences of its binding on NP properties and protein retention. Thermodynamic parameters of the NPs–albumin interaction were determined. We observed that the more stable NPs (coated with modified chitosan) present a lower affinity for albumin in comparison to pure magnetite and magnetite/silver hybrid NPs. Surface properties were key players at the NP–biological interface. To the best of our knowledge, this is the first study that demonstrates a correlation between the structural properties of complex hybrid NPs and their interaction with albumin.
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Affiliation(s)
- Joana C. Pieretti
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil; (J.C.P.); (J.M.); (A.B.S.)
| | - Jordan Beurton
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; (J.B.); (A.L.F.); (I.C.)
| | - Julián Munevar
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil; (J.C.P.); (J.M.); (A.B.S.)
| | | | - Alain Le Faou
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; (J.B.); (A.L.F.); (I.C.)
| | - Amedea B. Seabra
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil; (J.C.P.); (J.M.); (A.B.S.)
| | - Igor Clarot
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; (J.B.); (A.L.F.); (I.C.)
| | - Ariane Boudier
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; (J.B.); (A.L.F.); (I.C.)
- Correspondence:
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Gałczyńska K, Ciepluch K, Kurdziel K, Biehl R, Arabski M. Spectroscopic and Small-angle X-ray scattering analysis of binding between Copper(II) -1-allylimidazole complex, a potential anti-tumor agent, and bovine serum albumin. Bioorg Chem 2021; 116:105327. [PMID: 34507233 DOI: 10.1016/j.bioorg.2021.105327] [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] [Received: 06/24/2021] [Revised: 08/12/2021] [Accepted: 08/30/2021] [Indexed: 11/15/2022]
Abstract
Interactions between transport proteins and compounds with therapeutic potential are pharmacologically important. In this study, using fluorescence, circular dichroism (CD), and small-angle X-ray Scattering (SAXS), we investigated the interaction between bovine serum albumin (BSA) and a copper(II)-1-allylimidazole complex with potential anti-cancer properties. The results revealed dynamic fluorescence quenching of the model carrier protein BSA by the copper(II) complex. The enthalpy change (ΔH), free energy (ΔG), and entropy change (ΔS) were calculated to be 108 kJ/mol, -16.47 kJ/mol, and 419 J/mol K, respectively, according to the Van't Hoff equation. The reaction was an endothermic and spontaneous process, and hydrophobic interactions played a major role in binding. The results indicate a much lower affinity (Kb ∼ 102-103) for the metal complex compared with similar compounds (Kb ∼ 103-105). CD showed that the studied copper(II) complex does not change the secondary structure of the protein, while SAXS showed that the this compound may attach to the protein surface and stimulate interactions between proteins. The results suggest that the copper(II) complex with 1-allylimidazole binds weakly to BSA, leading to aggregation of albumin in solution, thereby altering its pharmacokinetic properties. The findings are pertinent to drug design.
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Affiliation(s)
- Katarzyna Gałczyńska
- Institute of Biology, Jan Kochanowski University, Uniwersytecka 7, 25-406 Kielce, Poland.
| | - Karol Ciepluch
- Institute of Biology, Jan Kochanowski University, Uniwersytecka 7, 25-406 Kielce, Poland
| | - Krystyna Kurdziel
- Institute of Chemistry, Jan Kochanowski University, Uniwersytecka 7, 25-406 Kielce, Poland
| | - Ralf Biehl
- Jülich Centre for Neutron Science & Institute of Biological Information Processing (JCNS-1&IBI-8), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Michał Arabski
- Institute of Biology, Jan Kochanowski University, Uniwersytecka 7, 25-406 Kielce, Poland
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Lu Q, Chen L, Meng Q, Jiang Y, Xie L. A biomolecule chiral interface base on BSA for electrochemical recognition of amine enantiomers. Chirality 2021; 33:385-396. [PMID: 33938037 DOI: 10.1002/chir.23314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 03/17/2021] [Accepted: 04/08/2021] [Indexed: 11/07/2022]
Abstract
A composite chiral interface (BSA-MB-MWCNTs) was prepared from bovine serum albumin (BSA), methylene blue (MB), and multi-walled carbon nanotubes (MWCNTs) for chiral recognition of amine enantiomers (1S, 2S)-N,N'-dimethyl-1,2-cyclohexanediamine and (1R, 2R)-N,N'-dimethyl-1,2-cyclohexanediamine. The BSA-based composite was characterized by field emission scanning electron microscopy (FESEM) and ultraviolet-visible spectroscopy (UV-Vis). The electrochemical responses towards the two enantiomers were analyzed via cyclic voltammetry (CV), electrochemical AC impedance method (EIS), and differential-pulse voltammetry (DPV). The experimental results showed that the combination of MWCNTs and BSA could effectively improve the overall identification efficiency, and the peak current displayed by the S-enantiomer is larger, indicating that the prepared chiral surface has stronger interaction with the R-enantiomer. Under optimized condition, the current value of the oxidation peak of the chiral modified electrode showed a good linear relationship towards the amine concentration in the range of 5.0 × 10-3 to 5.0 × 10-5 mmol·L-1 . The proposed electrochemical chiral interface is easy to handle and provides a promising electrochemical sensing platform that can be used to identify chiral amine enantiomers.
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Affiliation(s)
- Qiuna Lu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, China
| | - Lei Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, China
| | - Qi Meng
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, China
| | - Yan Jiang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, China
| | - Licheng Xie
- Changzhou University Huaide College, Jingjiang, China
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Tiwari A, Bhatia P, Randhawa JK. Systematic spectroscopic investigation of structural changes and corona formation of bovine serum albumin over magneto-fluorescent nanoparticles. Dalton Trans 2021; 49:12380-12389. [PMID: 32845947 DOI: 10.1039/d0dt02414g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Magneto-fluorescent nanoparticles have attracted great attention because of their dual nature as multimodal imaging probes in various biomedical applications. Particulary, it is desirable to understand how these nanoparticles interact with human serum proteins before they are used in biological systems. In this work, the physiological interactions between magneto-fluorescent nanoparticles (MFNPs) and bovine serum albumin (BSA) were systematically investigated. The present observations identified that the collision of MFNPs and BSA caused fluorescence quenching of BSA. Steady state fluorescence, lifetime and anisotropy measurements in the presence of MFNPs supported dynamic quenching of the BSA emission. Furthermore, in the presence of MFNPs, the conformation changes in the BSA structure indicate merely the secondary structural changes. The findings demonstrated that random interactions and hydrophobic forces play a major role in the dynamic quenching. Further, subsequent coating of BSA over MFNPs result in protein corona formation, as is evident through spectroscopic measurements. In light of the present work, MFNPs could serve a purpose in magnetic separation and optical detection of serum proteins from blood plasma in real-time disease diagnosis.
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Affiliation(s)
- Ashish Tiwari
- School of Engineering, Indian Institute of Technology Mandi, Mandi, Himachal Pradesh-175005, India.
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28
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Ozoemena OC, Ehirim TJ, Khawula T, Makgopa K, Shai LJ, Ozoemena KI. Bovine Serum Albumin-Dependent Charge-Transfer Kinetics Controls the Electrochemical Immunosensitive Detection: Vibrio cholerae as a Model Bioanalyte. Electrocatalysis (N Y) 2021; 12:595-604. [PMID: 34122666 PMCID: PMC8187457 DOI: 10.1007/s12678-021-00673-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2021] [Indexed: 11/25/2022]
Abstract
This work investigates how bovine serum albumin (BSA), a commonly used protein in the fabrication of electrochemical immunosensors, can impact on the sensitivity of detection when integrated with antibody (Ab) pre-encapsulated with (i) insulating polyacrylonitrile (PAN) fibre (i.e., GCE-PAN-Ab-BSA immunosensor) or (ii) conducting PAN-grafted iron (II) phthalocyanine (FePc) (i.e., GCE-PAN@FePc-Ab-BSA immunosensor), using Vibrio cholerae toxin as a case study bioanalyte. Both immunosensors show different charge-transfer kinetics that strongly impact on their immunosensitive detection. From the electrochemical data, GCE-PAN-Ab-BSA is more insulating with the presence of BSA, while the GCE-PAN@FePc-Ab-BSA is more conducting with BSA. The CV of the GCE-PAN-Ab-BSA is dominated by radial diffusion process, while that of the GCE-PAN@FePc-Ab-BSA is planar diffusion process. The behaviour of GCE-PAN@FePc-Ab-BSA has been associated with the facile coordination of BSA and FePc that permits co-operative charge-transport of the redox probe, while that of the GCE-PAN-Ab-BSA is related to the interaction-induced PAN-BSA insulating state that suppresses charge-transport. As a consequence of these different interaction processes, GCE-PAN-Ab-BSA immunosensor provides higher electroanalytical performance for the detection of Vibrio cholerae toxin (with sensitivity of 16.12 Ω/log [VCT, g/mL] and limit of detection (LoD) of 3.20 × 10-13 g/mL compared to those of the GCE-PAN@FePc-Ab-BSA (4.16 Ω/log (VCT, g mL-1) and 2.00 × 10-12 g/mL). The study confirms the need for a thorough understanding of the physico-chemistries of the electrode platforms for the construction of immunosensors. Although this work is on immunosensors for cholera infection, it may well apply to other immunosensors. GRAPHICAL ABSTRACT
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Affiliation(s)
- Okoroike C. Ozoemena
- Department of Biomedical Sciences, Faculty of Science, Tshwane University of Technology, Pretoria, 0001 South Africa
| | - Tobechukwu J. Ehirim
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, 2050 South Africa
| | - Tobile Khawula
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, 2050 South Africa
| | - Katlego Makgopa
- Department of Chemistry, Faculty of Science, Tshwane University of Technology, Pretoria, 0001 South Africa
| | - Leshweni J. Shai
- Department of Biomedical Sciences, Faculty of Science, Tshwane University of Technology, Pretoria, 0001 South Africa
| | - Kenneth I. Ozoemena
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, 2050 South Africa
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Huang Q, Bao Q, Wu C, Hu M, Chen Y, Wang L, Chen W. Carbon dots derived from Poria cocos polysaccharide as an effective “on-off” fluorescence sensor for chromium (VI) detection. J Pharm Anal 2021; 12:104-112. [PMID: 35573881 PMCID: PMC9073324 DOI: 10.1016/j.jpha.2021.04.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 04/02/2021] [Accepted: 04/16/2021] [Indexed: 11/08/2022] Open
Abstract
Chromium is a harmful contaminant showing mutagenicity and carcinogenicity. Therefore, detection of chromium requires the development of low-cost and high-sensitivity sensors. Herein, blue-fluorescent carbon quantum dots were synthesized by one-step hydrothermal method from alkali-soluble Poria cocos polysaccharide, which is green source, cheap and easy to obtain, and has no pharmacological activity due to low water solubility. These carbon quantum dots exhibit good fluorescence stability, water solubility, anti-interference and low cytotoxicity, and can be specifically combined with the detection of Cr(VI) to form a non-fluorescent complex that causes fluorescence quenching, so they can be used as a label-free nanosensor. High-sensitivity detection of Cr(VI) was achieved through internal filtering and static quenching effects. The fluorescence quenching degree of carbon dots fluorescent probe showed a good linear relationship with Cr(VI) concentration in the range of 1–100 μM. The linear equation was F0/F = 0.9942 + 0.01472 [Cr(VI)] (R2 = 0.9922), and the detection limit can be as low as 0.25 μM (S/N = 3), which has been successfully applied to Cr(VI) detection in actual water samples herein. Carbon dots was synthesized from alkaloid-soluble Poria cocos polysaccharide, which used for Cr (VI) detection. High sensitivity and selectivity detection of Cr(VI) based on internal filtering effect and static quenching mechanism. The method analysis speed is quick, sensitive, raw materials for convenient, inexpensive. The method has been applied to the determination of Cr(VI) in actual samples with satisfactory recovery.
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Ju P, Zhang Y, Ding J, Zheng Y, Wang S, Jiang F, Sun C. New insights into the toxic interactions of polyvinyl chloride microplastics with bovine serum albumin. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:5520-5531. [PMID: 32968899 DOI: 10.1007/s11356-020-10707-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 09/01/2020] [Indexed: 06/11/2023]
Abstract
The binding interaction between emerging pollutant polyvinyl chloride microplastics (PVC MPs) and bovine serum albumin (BSA) was studied by fluorescence spectroscopy, resonance scattering spectroscopy (RLS), UV-visible (UV-vis) absorption spectroscopy, circular dichroism (CD), and Fourier transform infrared (FT-IR) spectroscopy under simulative physiological conditions. Fluorescence results revealed that the fluorescence quenching of BSA induced by PVC MPs was originated from the formation of BSA-PVC complex in static quenching mode. According to Stern-Volmer equation, the binding constants (Ka) between PVC MPs and BSA at different temperatures were obtained, and the number of binding sites was 1.62. The thermodynamic parameters, enthalpy change (ΔH), entropy change (ΔS), and free energy change (ΔG) were calculated to be - 41.77 kJ mol-1, 43.17 J mol-1 K-1, and - 54.63 kJ mol-1 via Van't Hoff equation, indicating electrostatic interaction played a key role in the formation of BSA-PVC complex spontaneously. In addition, the alterations of microenvironment and secondary structure in BSA induced by PVC MPs were further confirmed by synchronous fluorescence spectra, UV-vis, FT-IR, and CD. This work not only provides further information for better understanding the binding interaction of PVC MPs with BSA, but also elucidates the potential biological toxicity of MPs at a molecular level.
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Affiliation(s)
- Peng Ju
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, 6 Xianxialing Road, Qingdao, 266061, People's Republic of China.
- Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), 1 Wenhai Road, Qingdao, 266237, People's Republic of China.
| | - Yu Zhang
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, 6 Xianxialing Road, Qingdao, 266061, People's Republic of China
| | - Jinfeng Ding
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, 6 Xianxialing Road, Qingdao, 266061, People's Republic of China
| | - Yifan Zheng
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, 6 Xianxialing Road, Qingdao, 266061, People's Republic of China
| | - Shuai Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, 6 Xianxialing Road, Qingdao, 266061, People's Republic of China
| | - Fenghua Jiang
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, 6 Xianxialing Road, Qingdao, 266061, People's Republic of China
| | - Chengjun Sun
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, 6 Xianxialing Road, Qingdao, 266061, People's Republic of China.
- Laboratory of Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), 1 Wenhai Road, Qingdao, 266237, People's Republic of China.
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31
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Interaction of silver nanoparticles with plasma transport proteins: A systematic study on impacts of particle size, shape and surface functionalization. Chem Biol Interact 2020; 335:109364. [PMID: 33359597 DOI: 10.1016/j.cbi.2020.109364] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/26/2020] [Accepted: 12/21/2020] [Indexed: 12/24/2022]
Abstract
Metallic nanoparticles are an important and widely used materials in development of nano-enabled medicine. For that reason, their interaction with biological molecules has to be systematically examined, as use of nanoparticles can lead to altered biological functions. In this study, we evaluated the interaction between silver nanoparticles (AgNPs) and two important plasma transport proteins - albumin and α-1-acid glycoprotein. To investigate comprehensively how different physico-chemical properties impact interaction of proteins with nanosurface, AgNPs of different size, shape and surface coating was prepared. The study was conducted using UV-Vis absorption, fluorescence, inductively coupled plasma mass spectrometry, circular dichroism spectroscopy, transmission electron microscopy, dynamic and electrophoretic light scattering techniques. The results showed significant complexities of the nano-bio interface and binding affinities of proteins onto surface of different AgNPs, which were affected by both AgNPs and protein properties. The most significant role on AgNPs-protein interaction had the coating agents used for AgNPs surface stabilization. Our findings should improve safe-by-design approach to development of the metallic nanomaterials for medical use.
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Chilom CG, Bălan A, Sandu N, Bălăşoiu M, Stolyar S, Orelovich O. Exploring the Conformation and Thermal Stability of Human Serum Albumin Corona of Ferrihydrite Nanoparticles. Int J Mol Sci 2020; 21:ijms21249734. [PMID: 33419335 PMCID: PMC7766795 DOI: 10.3390/ijms21249734] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/13/2020] [Accepted: 12/17/2020] [Indexed: 12/16/2022] Open
Abstract
In the last few years, a great amount of attention has been given to nanoparticles research due to their physicochemical properties that allow their use in analytical instruments or in promising imaging applications on biological systems. The use of ferrihydrite nanoparticles (Fh-NPs) in practical applications implies a particular control of their magnetic properties, stability, biocompatibility, interaction with the surface of the target, and low toxicity. In this study, the formation and organization of human serum albumin (HSA) molecules around the simple Fh-NPs and Fh-NPs doped with Co and Cu were examined by Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) in terms of morphology and particle size. The topology of all Fh-NPs shows an organized area of HSA around each type of Fh-NP. Molecular docking studies were used in order to determine the probable location of the ferrihydrite in the HSA structure. The thermal stability of these nanohybrids was further investigated by fluorimetry, using 214-Trp residue from HSA as a spectral sensor. The denaturation temperature (Tm) was determined, and stabilization of the HSA structure in the presence of Fh-NPs was discussed. This study could be a starting point for the development of different applications targeting the structure and stability of Fh-NPs complexes with proteins.
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Affiliation(s)
- Claudia G. Chilom
- Faculty of Physics, University of Bucharest, Str Atomiștilor 405, CP MG 11, RO-077125 Bucharest, Romania; (A.B.); (N.S.)
- Correspondence:
| | - Adriana Bălan
- Faculty of Physics, University of Bucharest, Str Atomiștilor 405, CP MG 11, RO-077125 Bucharest, Romania; (A.B.); (N.S.)
| | - Nicoleta Sandu
- Faculty of Physics, University of Bucharest, Str Atomiștilor 405, CP MG 11, RO-077125 Bucharest, Romania; (A.B.); (N.S.)
| | - Maria Bălăşoiu
- Joint Institute for Nuclear Research, Joliot-Curie No.6, 141980 Dubna, Russia; (M.B.); (O.O.)
- Moscow Institute of Physics and Technology, Institutskiy Per. No. 9, 141701 Dolgoprudniy, Russia
- Horia Hulubei National Institute of Physics and Nuclear Engineering, RO-077125 Măgurele, Romania
| | - Sergey Stolyar
- Krasnoyarsk Scientific Center, Federal Research Center KSC SB RAS, Akademgorodok St. No. 50, 660036 Krasnoyarsk, Russia;
| | - Oleg Orelovich
- Joint Institute for Nuclear Research, Joliot-Curie No.6, 141980 Dubna, Russia; (M.B.); (O.O.)
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33
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Thiophene-benzothiazole dyad ligand and its Ag(I) complex – Synthesis, characterization, interactions with DNA and BSA. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114182] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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34
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Huang X, Zhu J, Wang L, Jing H, Ma C, Kou X, Wang H. Inhibitory mechanisms and interaction of tangeretin, 5-demethyltangeretin, nobiletin, and 5-demethylnobiletin from citrus peels on pancreatic lipase: Kinetics, spectroscopies, and molecular dynamics simulation. Int J Biol Macromol 2020; 164:1927-1938. [DOI: 10.1016/j.ijbiomac.2020.07.305] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 07/11/2020] [Accepted: 07/29/2020] [Indexed: 12/21/2022]
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35
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Ciepluch K, Skrzyniarz K, Zdańska J, Barrios-Gumiel A, Sánchez-Nieves J, de la Mata FJ, Maciejewska B, Drulis-Kawa Z, Bryszewska M, Arabski M. PEGylation of dendronized silver nanoparticles increases the binding affinity of antimicrobial proteins. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114339] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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36
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Impacts of Magnetic Immobilization on the Recombinant Proteins Structure Produced in Pichia pastoris System. Mol Biotechnol 2020; 63:80-89. [PMID: 33165735 DOI: 10.1007/s12033-020-00286-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2020] [Indexed: 10/23/2022]
Abstract
Pichia pastoris expression system was introduced with post-translation process similar to higher eukaryotes. Preliminary studies were performed toward process intensification and magnetic immobilization of this system. In this experiment, effects of magnetic immobilization on the structure of recombinant protein were evaluated. P. pastoris cell which express human serum albumin (HSA) was used as a model. The cells were immobilized with various concentrations of APTES coated magnetite nanoparticles. HSA production was done over 5 days induction and structure of the product was analyzed by UV-vis, fluorescence, and ATR-FTIR spectroscopy. Second derivative deconvolution method was used to analyze the secondary structure of HSA. P. pastoris cell that were immobilized with 0.5 and 1 mg/mL of nanoparticles were produced HSA with intact structure. But immobilization with 2 mg/mL of nanoparticles resulted in some modifications in the secondary structures (i.e., α-helixes and β-turns) of produced HSA. Based on these data, immobilization of P. pastoris cells with 0.5 or 1 mg/mL of nanoparticles is completely efficient for cell harvesting and has any effect on the structure of recombinant product. These findings revealed that decoration of microbial cells with high concentrations of nanoparticles has some impacts on the structure of secretory proteins.
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37
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Rao H, Qi W, Su R, He Z, Peng X. Mechanistic and conformational studies on the interaction of human serum albumin with rhodamine B by NMR, spectroscopic and molecular modeling methods. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113889] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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38
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Mechanistic interaction of triflate based noscapine ionic liquid with BSA: Spectroscopic and chemoinformatics approaches. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113695] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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39
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Russo Krauss I, Picariello A, Vitiello G, De Santis A, Koutsioubas A, Houston JE, Fragneto G, Paduano L. Interaction with Human Serum Proteins Reveals Biocompatibility of Phosphocholine-Functionalized SPIONs and Formation of Albumin-Decorated Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:8777-8791. [PMID: 32575987 PMCID: PMC8008447 DOI: 10.1021/acs.langmuir.0c01083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/23/2020] [Indexed: 05/13/2023]
Abstract
Nanoparticles (NPs) are increasingly exploited as diagnostic and therapeutic devices in medicine. Among them, superparamagnetic nanoparticles (SPIONs) represent very promising tools for magnetic resonance imaging, local heaters for hyperthermia, and nanoplatforms for multimodal imaging and theranostics. However, the use of NPs, including SPIONs, in medicine presents several issues: first, the encounter with the biological world and proteins in particular. Indeed, nanoparticles can suffer from protein adsorption, which can affect NP functionality and biocompatibility. In this respect, we have investigated the interaction of small SPIONs covered by an amphiphilic double layer of oleic acid/oleylamine and 1-octadecanoyl-sn-glycero-3-phosphocholine with two abundant human plasma proteins, human serum albumin (HSA) and human transferrin. By means of spectroscopic and scattering techniques, we analyzed the effect of SPIONs on protein structure and the binding affinities, and only found strong binding in the case of HSA. In no case did SPIONs alter the protein structure significantly. We structurally characterized HSA/SPIONs complexes by means of light and neutron scattering, highlighting the formation of a monolayer of protein molecules on the NP surface. Their interaction with lipid bilayers mimicking biological membranes was investigated by means of neutron reflectivity. We show that HSA/SPIONs do not affect lipid bilayer features and could be further exploited as a nanoplatform for future applications. Overall, our findings point toward a high biocompatibility of phosphocholine-decorated SPIONs and support their use in nanomedicine.
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Affiliation(s)
- Irene Russo Krauss
- Department
of Chemical Sciences and Department of Chemical, Materials
and Production Engineering, University of
Naples Federico II, Naples, Italy
- CSGI,
Center for Colloid and Surface Science, Sesto Fiorentino (FI), Italy
| | - Alessandra Picariello
- Department
of Chemical Sciences and Department of Chemical, Materials
and Production Engineering, University of
Naples Federico II, Naples, Italy
| | - Giuseppe Vitiello
- Department
of Chemical Sciences and Department of Chemical, Materials
and Production Engineering, University of
Naples Federico II, Naples, Italy
- CSGI,
Center for Colloid and Surface Science, Sesto Fiorentino (FI), Italy
| | - Augusta De Santis
- Department
of Chemical Sciences and Department of Chemical, Materials
and Production Engineering, University of
Naples Federico II, Naples, Italy
- CSGI,
Center for Colloid and Surface Science, Sesto Fiorentino (FI), Italy
| | - Alexandros Koutsioubas
- Jülich
Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum
(MLZ), Forschungszentrum Jülich GmbH, Lichtenbergstrasse 1, 85747 Garching, Germany
| | | | - Giovanna Fragneto
- Institut
Laue-Langevin (ILL), 71 avenue des Martyrs, BP 156, 38042 Grenoble, France
| | - Luigi Paduano
- Department
of Chemical Sciences and Department of Chemical, Materials
and Production Engineering, University of
Naples Federico II, Naples, Italy
- CSGI,
Center for Colloid and Surface Science, Sesto Fiorentino (FI), Italy
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40
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Outstanding protein-repellent feature of soft nanoparticles based on poly(N-(2-hydroxypropyl) methacrylamide) outer shells. J Colloid Interface Sci 2020; 574:260-271. [DOI: 10.1016/j.jcis.2020.04.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 12/13/2022]
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41
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Fattah R, Rashedi H, Yazdian F, Mousavi SB, Fazeli A. Promising insights into the kosmotropic effect of magnetic nanoparticles on proteins: The pivotal role of protein corona formation. Biotechnol Prog 2020; 36:e3051. [PMID: 32692433 DOI: 10.1002/btpr.3051] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 07/05/2020] [Accepted: 07/19/2020] [Indexed: 11/05/2022]
Abstract
Increasing concerns about biosafety of nanoparticles (NPs) has raised the need for detailed knowledge of NP interactions with biological molecules especially proteins. Herein, the concentration-dependent effect of magnetic NPs (MNPs) on bovine serum albumin and hen egg white lysozyme was explored. The X-ray diffraction patterns, zeta potential, and dynamic light scattering measurements together with scanning electron microscopy images were employed to characterize MNPs synthesized through coprecipitation method. Then, we studied the behavior of two model proteins with different surface charges and structural properties on interaction with Fe3 O4 . A thorough investigation of protein-MNP interaction by the help of intrinsic fluorescence at different experimental conditions revealed that affinity of proteins for MNPs is strongly affected by the similarity of protein and MNP surface charges. MNPs exerted structure-making kosmotropic effect on both proteins under a concentration threshold; however, binding strength was found to determine the extent of stabilizing effect as well as magnitude of the concentration threshold. Circular dichroism spectra showed that proteins with less resistance to conformational deformations are more prone to secondary structure changes upon adsorption on MNPs. By screening thermal aggregation of proteins in the presence of Fe3 O4 , it was also found that like chemical stability, thermal stability is influenced to a higher extent in more strongly bound proteins. Overall, this report not only provides an integrated picture of protein-MNP interaction but also sheds light on the molecular mechanism underling this process.
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Affiliation(s)
- Reza Fattah
- Department of Biotechnology, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Hamid Rashedi
- Department of Biotechnology, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Fatemeh Yazdian
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | | | - Ahmad Fazeli
- Research and Development Department, Zistdaru Danesh Co, Tehran, Iran.,The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences (TUMS), Tehran, Iran
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42
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Capistrano G, Sousa-Junior AA, Silva RA, Mello-Andrade F, Cintra ER, Santos S, Nunes AD, Lima RM, Zufelato N, Oliveira AS, Pereira M, Castro CH, Lima EM, Cardoso CG, Silveira-Lacerda E, Mendanha SA, Bakuzis AF. IR-780-Albumin-Based Nanocarriers Promote Tumor Regression Not Only from Phototherapy but Also by a Nonirradiation Mechanism. ACS Biomater Sci Eng 2020; 6:4523-4538. [DOI: 10.1021/acsbiomaterials.0c00164] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Gustavo Capistrano
- Instituto de Física, Universidade Federal de Goiás, 74690-900 Goiânia−GO, Brasil
| | | | - Roosevelt A. Silva
- Nucleo Colaborativo de BioSistemas, Universidade Federal de Goiás, 75804-020 Jataí−GO, Brasil
| | - Francyelli Mello-Andrade
- Departamento de Química, Instituto Federal de Educação, Ciência e Tecnologia de Goiás, 74055-110 Goiânia−GO, Brasil
| | - Emilio R. Cintra
- Faculdade de Farmácia, Universidade Federal de Goiás, 74605-220 Goiânia−GO, Brasil
| | - Sônia Santos
- Instituto de Ciências Biológicas, Universidade Federal de Goiás, 74001-970 Goiânia−GO, Brasil
| | - Allancer D. Nunes
- Instituto de Ciências Biológicas, Universidade Federal de Goiás, 74001-970 Goiânia−GO, Brasil
| | - Raisa M. Lima
- Instituto de Ciências Biológicas, Universidade Federal de Goiás, 74001-970 Goiânia−GO, Brasil
| | - Nicholas Zufelato
- Instituto de Física, Universidade Federal de Goiás, 74690-900 Goiânia−GO, Brasil
| | - André S. Oliveira
- Instituto de Ciências Biológicas, Universidade Federal de Goiás, 74001-970 Goiânia−GO, Brasil
| | - Maristela Pereira
- Instituto de Ciências Biológicas, Universidade Federal de Goiás, 74001-970 Goiânia−GO, Brasil
| | - Carlos H. Castro
- Instituto de Ciências Biológicas, Laboratório Integrado de Fisiopatologia Cardiovascular e Neurológica, Universidade Federal de Goiás, 74001-970 Goiânia−GO, Brasil
| | - Eliana M. Lima
- Faculdade de Farmácia, Universidade Federal de Goiás, 74605-220 Goiânia−GO, Brasil
| | - Clever G. Cardoso
- Instituto de Ciências Biológicas, Universidade Federal de Goiás, 74001-970 Goiânia−GO, Brasil
| | | | | | - Andris F. Bakuzis
- Instituto de Física, Universidade Federal de Goiás, 74690-900 Goiânia−GO, Brasil
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43
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Mirzaei S, Mobedi H, Gourabi H, Sanati MH, Khezli S, Ighaeie M, Omidian H. Enhancement of The Stability of Human Growth Hormone by Using Tris(hydroxymethyl)aminomethane: Molecular Docking and Experimental Analysis. CELL JOURNAL 2020; 22:406-414. [PMID: 32347033 PMCID: PMC7211290 DOI: 10.22074/cellj.2021.6903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 07/15/2019] [Indexed: 11/04/2022]
Abstract
Objective It is so difficult to formulate human growth hormone (hGH) in a solution with high stability and new drug delivery system (NDDs) due to physiochemical instability. The purpose of this study was to investigate the possibility of using Tris as a hGH stabilizer. Materials and Methods In this experimental study, the role of tris(hydroxymethyl)aminomethane (Tris) was evaluated as a hGH stabilizing agent in phosphate buffer, as a practical aqueous solution and a media to release NDDs. Highperformance liquid chromatography (HPLC) and enzyme-linked immune sorbent assay (ELISA) were applied to investigate the stability of hGH in solutions and dynamic light scattering (DLS) was used to measure the effect of Tris on the hydrodynamic size of hGH in aqueous solutions. Ultra violet (UV) spectrophotometry was used to check the hGH spectrum. In computational study, formation of ligand-protein complex of the Tris-hGH, and the intermolecular interactions between Tris and hGH were studied by molecular docking modeling. Results The results demonstrated that Tris at the optimum concentration, increases hGH stability in aqueous solutions. Also, molecular docking modeling confirmed that amino acid residues such as tyrosine (Tyr), proline (Pro), glutamic acid (Glu), aspartic acid (Asp), leucine (Leu), and phenylalanine (Phe) in hGH structure, were linked with Tris as a ligand. Conclusion It seems that interactions between hGH and Tris are the most important reason for increment of the physicochemical stability of hGH in aqueous solutions containing Tris.
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Affiliation(s)
- Siyavash Mirzaei
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Hamid Mobedi
- Department of Novel Drug Delivery Systems, Iran Polymer and Petrochemical Institute, Tehran, Iran. Electronic Address:
| | - Hamid Gourabi
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Mohammad Hosein Sanati
- Medical Genetics Department, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Sakine Khezli
- Department of Novel Drug Delivery Systems, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Masoume Ighaeie
- Computational Nano Physical Chemistry Laboratory, Department of Chemistry, Azerbaijan Shahid Madani University, Tabriz, Iran
| | - Hamid Omidian
- Department of Pharmaceutical Sciences, Nova Southeastern University, Pharmaceutical Sciences, Davie, Florida, USA
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44
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Batista CCS, Albuquerque LJC, Jäger A, Stepánek P, Giacomelli FC. Probing protein adsorption onto polymer-stabilized silver nanocolloids towards a better understanding on the evolution and consequences of biomolecular coronas. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110850. [PMID: 32279743 DOI: 10.1016/j.msec.2020.110850] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/21/2020] [Accepted: 03/12/2020] [Indexed: 12/13/2022]
Abstract
The use of noble metal nanoparticles in biomedical and biotechnological applications is nowadays well established. Particularly, silver nanoparticles (AgNPs) were proven to be effective for instance as a biocide agent. They also find applications in tumor therapies and sensing applications being encouraging tools for in-vivo imaging. In this framework, whenever they are in contact with living systems, they are rapidly coated by a protein corona thereby influencing a variety of biological events including cellular uptake, blood circulation lifetime, cytotoxicity and, ultimately, the therapeutic effect. Taking these considerations into account, we have explored the behavior of polymer-coated AgNPs in model protein environments focusing on the self-development of protein coronas. The polymers polyethyleneimine (PEI), polyvinylpyrrolidone (PVP) and poly(2-vinyl pyridine)-b-poly(ethylene oxide) (PEO-b-P2VP) were used as stabilizing agents. The chemical nature of the polymer capping remarkably influences the behavior of the hybrid nanomaterials in protein environments. The PEO-b-P2VP and PVP-stabilized AgNPs are essentially inert to the model proteins adsorption. On the other hand, the PEI-stabilized AgNPs interact strongly with bovine serum albumin (BSA). Nevertheless, the same silver colloids were evidenced to be stable in IgG and lysozyme environments. The BSA adsorption into the PEI-stabilized AgNPs is most probably driven by hydrogen bonding and van der Waals interactions as suggested by isothermal titration calorimetry data. The development of protein coronas around the AgNPs may have relevant implications in a variety of biological events. Therefore, further investigations are currently underway to evaluate the influence of its presence on the cytotoxicity, hemolytic effects and biocide properties of the produced hybrid nanomaterials.
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Affiliation(s)
- Carin C S Batista
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | | | - Alessandro Jäger
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Petr Stepánek
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Fernando C Giacomelli
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil.
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45
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Bai J, Ma X, Sun X. Investigation on the interaction of food colorant Sudan III with bovine serum albumin using spectroscopic and molecular docking methods. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2020; 55:669-676. [PMID: 32073347 DOI: 10.1080/10934529.2020.1729616] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 02/03/2020] [Accepted: 02/07/2020] [Indexed: 06/10/2023]
Abstract
Sudan III is a coloring agent used in chemical industries and food additives. This article uses spectroscopic and molecular docking methods to investigate the interaction of Sudan III with bovine serum albumin (BSA) under a physiological condition. Spectroscopic analysis of the emission quenching revealed that the quenching mechanism of BSA by Sudan III was static. The binding sites and constants of Sudan III-BSA complex were observed to be from 0.72 and 6.41 × 102 L·mol-1 to 0.69 and 5.83 × 102 L·mol-1 at 298 and 310 K, respectively. The enthalpy change (ΔH) and entropy change (ΔS) revealed that van der Waals forces and hydrogen bonds stabilized the Sudan III-BSA complex. Energy transfer from tryptophan to Sudan III occurred by a fluorescence resonance energy transfer mechanism, and the r distance (3.32 nm) had been determined. The results of UV-Vis absorption, synchronous, three-dimensional fluorescence, and circular dichroism spectra showed that Sudan III induced conformational changes of BSA. Molecular docking studies revealed that Sudan III situated within subdomain IIA of BSA. A study on the interaction between Sudan III and BSA was of fundamental importance for providing more information about the potential toxicological effect of chemicals at the molecular level.
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Affiliation(s)
- Jie Bai
- College of Environmental Science, Liaoning University, Shenyang, P.R. China
| | - Xiping Ma
- College of Environmental Science, Liaoning University, Shenyang, P.R. China
| | - Xuekai Sun
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, P.R. China
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46
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Insight into the binding and conformational changes of hemoglobin/lysozyme with bimetallic alloy nanoparticles using various spectroscopic approaches. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111747] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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47
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Mohammadi F, Moeeni M, Li C, Boukherroub R, Szunerits S. Interaction of cellulose and nitrodopamine coated superparamagnetic iron oxide nanoparticles with alpha-lactalbumin. RSC Adv 2020; 10:9704-9716. [PMID: 35497200 PMCID: PMC9050155 DOI: 10.1039/c9ra09045b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 02/20/2020] [Indexed: 11/21/2022] Open
Abstract
The adsorption of BLA on the SPIOns, and their non-toxic nature of the bioconjugate make these nanoparticles new model nanostructures for nanomedicine orientated applications.
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Affiliation(s)
- Fakhrossadat Mohammadi
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
| | - Marzieh Moeeni
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
| | - Chengnan Li
- Univ. Lille
- CNRS
- Centrale Lille
- ISEN
- Univ. Valenciennes
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48
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Pranjali P, Meher MK, Raj R, Prasad N, Poluri KM, Kumar D, Guleria A. Physicochemical and Antibacterial Properties of PEGylated Zinc Oxide Nanoparticles Dispersed in Peritoneal Dialysis Fluid. ACS OMEGA 2019; 4:19255-19264. [PMID: 31763549 PMCID: PMC6868886 DOI: 10.1021/acsomega.9b02615] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 10/22/2019] [Indexed: 05/07/2023]
Abstract
Owing to the peculiar broad-spectrum antimicrobial activities of zinc oxide nanoparticles (ZnO NPs), we envisaged their use to treat bacterial/mycobacterial/fungal infections during peritoneal dialysis (PD) of end-stage renal failure patients. However, a recent study from our lab showed that ZnO-NPs cannot be employed for the same in their naked form owing to their rapid agglomeration. Also, the naked ZnO-NPs showed strong interaction with organic acids present in the PD fluid (i.e., lactate and citrate present abundantly in almost all biological fluids) resulting in the formation of bioconjugates. Here, we propose that the surface coating of ZnO NPs may inhibit the binding interactions of NPs with the constituents of PD fluid. Therefore, in this study, we have carried out the surface coating of ZnO NPs with polyethylene glycol (PEG) of different molecular weights, followed by the investigations of physicochemical properties of PEGylated ZnO NPs dispersed in PD fluid using nuclear magnetic resonance (NMR) spectroscopy, dynamic light scattering (DLS), transmission electron microscopy (TEM), and Fourier transform infrared (FT-IR) spectroscopy. The interaction of PEGylated ZnO NPs has also been studied separately in glucose and lactic acid which are the main constituents of PD fluid and in citric acid. Although the X-ray diffraction and TEM results infer the colloidal stability of PEGylated ZnO NPs in PD fluid, FT-IR, UV-vis, and nuclear magnetic resonance results revealed the binding interactions of PEGylated ZnO NPs with the PD constituents. PEGylated ZnO NPs also interact strongly with the lactic acid and citric acid, leading to agglomeration, as observed previously for uncoated ZnO NPs. Further, the antibacterial activities of bare and PEG-coated ZnO NPs dispersion in PD fluid have been studied. A reduction in the bacterial inhibition effect against Staphylococcus aureus and Escherichia coli was observed for both the bare and PEG-coated ZnO NPs dispersed in PD fluid, indicating that the complex nature of PD fluid counteract on the efficiency of these nanobiotics.
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Affiliation(s)
- Pranjali Pranjali
- Centre
of Biomedical Research, SGPGIMS Campus, Lucknow 226014, India
| | - Mukesh Kumar Meher
- Department
of Biotechnology and Centre for Nanotechnology, Indian Institute
of Technology Roorkee, Roorkee 247667, India
| | - Ritu Raj
- Centre
of Biomedical Research, SGPGIMS Campus, Lucknow 226014, India
| | - Narayan Prasad
- Department
of Nephrology, SGPGIMS, Lucknow 226014, India
| | - Krishna Mohan Poluri
- Department
of Biotechnology and Centre for Nanotechnology, Indian Institute
of Technology Roorkee, Roorkee 247667, India
- E-mail: , (K.M.P.)
| | - Dinesh Kumar
- Centre
of Biomedical Research, SGPGIMS Campus, Lucknow 226014, India
- E-mail: (D.K.)
| | - Anupam Guleria
- Centre
of Biomedical Research, SGPGIMS Campus, Lucknow 226014, India
- E-mail: (A.G.)
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49
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Deng F, Sun J, Dou R, Deng W, Liu Y, Yang C, Dang Z. Mechanism of enhancing pyrene-degradation ability of bacteria by layer-by-layer assembly bio-microcapsules materials. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 181:525-533. [PMID: 31234067 DOI: 10.1016/j.ecoenv.2019.06.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/24/2019] [Accepted: 06/05/2019] [Indexed: 06/09/2023]
Abstract
The mechanism of improving pyrene (PYR)-degrading ability of bacteria CP13 in Layer-by-layer (LBL) assembly chitosan/alginate (CHI/ALG) bio-microcapsules was investigated. Flow cytometry analysis showed that LBL microcapsules could effectively slow down the increasing rate of bacterial cell membrane permeability and the decreasing rate of the membrane potential, so as to reduce the death rate and number of the cells, which could protect the degrading bacteria. The results of Fluorescence spectrum, circular dichroism (CD) spectrum and laser light scattering (LLS) analysis revealed that the other possible mechanism for LBL microcapsules to promote bacterial degradation were following: CHI could enter the secondary structure of the protein of the extracellular polymeric substances (EPS) from CP13 and combined with EPS to generate a stable ground material, which had larger molecular weight (3.76×106 g mol-1) than the original EPS (2.52×106 g mol-1). The combination of CHI and EPS resulted in the decrease of the density of EPS from 1.18 to 0.72 g L-1, suggesting that CHI can loosen the EPS configurations, improving the capture ability of bacteria for PYR as well as the mass transfer of PYR from the extracellular to intracellular, thus eventually promoting the bacteria degrade performance.
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Affiliation(s)
- Fucai Deng
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China; College of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.
| | - Jianteng Sun
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China
| | - Rongni Dou
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China; College of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Wangming Deng
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China
| | - Yi Liu
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China
| | - Chen Yang
- College of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.
| | - Zhi Dang
- College of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.
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50
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Sadeghi-kaji S, Shareghi B, Saboury AA, Farhadian S. Investigation on the structure and function of porcine pancreatic elastase (PPE) under the influence of putrescine: A spectroscopy and molecular simulation study. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111115] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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