1
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Costa-Tuna A, Chaves OA, Loureiro RJS, Pinto S, Pina J, Serpa C. Interaction between a water-soluble anionic porphyrin and human serum albumin unexpectedly stimulates the aggregation of the photosensitizer at the surface of the albumin. Int J Biol Macromol 2024; 255:128210. [PMID: 37992936 DOI: 10.1016/j.ijbiomac.2023.128210] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 11/02/2023] [Accepted: 11/15/2023] [Indexed: 11/24/2023]
Abstract
The 5,10,15,20-tetrakis(2,6-difluoro-3-sulfophenyl)porphyrin (TDFPPS4) was reported as a potential photosensitizer for photodynamic therapy. The capacity of the photosensitizers to be carried in the human bloodstream is predominantly determined by its extension of binding, binding location, and binding mechanism to human serum albumin (HSA), influencing its biodistribution and ultimately its photodynamic therapy efficacy in vivo. Thus, the present work reports a biophysical characterization on the interaction between the anionic porphyrin TDFPPS4 and HSA by UV-visible absorption, circular dichroism, steady-state, time-resolved, and synchronous fluorescence techniques under physiological conditions, combined with molecular docking calculations and molecular dynamics simulations. The interaction HSA:TDFPPS4 is spontaneous (ΔG° < 0), strong, and enthalpically driven (ΔH° = -70.1 ± 3.3 kJ mol-1) into subdomain IIA (site I). Curiously, despite the porphyrin binding into an internal pocket, about 50 % of TDFPPS4 structure is still accessible to the solvent, making aggregation in the bloodstream possible. In silico calculations were reinforced by spectroscopic data indicating porphyrin aggregation between bound and unbound porphyrins. This results in an adverse scenario for anionic porphyrins to achieve their therapeutical potential as photosensitizers and control of effective dosages. Finally, a trend of anionic porphyrins to have a combination of quenching mechanisms (static and dynamic) was noticed.
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Affiliation(s)
- Andreia Costa-Tuna
- CQC-IMS, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal
| | - Otávio A Chaves
- CQC-IMS, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal.
| | - Rui J S Loureiro
- CQC-IMS, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal
| | - Sara Pinto
- CQC-IMS, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal
| | - João Pina
- CQC-IMS, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal
| | - Carlos Serpa
- CQC-IMS, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal.
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2
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Lipok M, Obstarczyk P, Żak A, Olesiak-Bańska J. Single Gold Nanobipyramids Sensing the Chirality of Amyloids. J Phys Chem Lett 2023; 14:11084-11091. [PMID: 38051220 DOI: 10.1021/acs.jpclett.3c02762] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Plasmonic nanoparticles, due to their sensitivity to small changes in their closest environment and plasmon resonance, can sense the chirality of the surrounding molecules. Therefore, plasmonic nanoparticles can be applied as a next-generation biosensor for peptides or proteins. In this work, we explore the interaction between chiral, ordered protein aggregates (amyloids) and small gold nanobipyramids. We show how the morphology, structure, and chiroptical properties of amyloids induce circular dichroism in the plasmon resonance wavelengths from individual plasmonic nanoparticles upon binding to the chiral amyloid template. Moreover, using the data from microscopic and spectroscopic analyses of formed heterostructures, we propose the most probable mechanism behind the induction of chirality in this system and discuss which specific feature of insulin protein aggregates is sensed by nanobipyramids.
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Affiliation(s)
- Maciej Lipok
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Patryk Obstarczyk
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Andrzej Żak
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Joanna Olesiak-Bańska
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
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3
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Arora A, Sharma K, Tripathi SK. Impact of luminescent MoSe 2 quantum dots on activity of trypsin under different pH environment. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 302:122958. [PMID: 37406547 DOI: 10.1016/j.saa.2023.122958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 04/20/2023] [Accepted: 05/29/2023] [Indexed: 07/07/2023]
Abstract
It is vital that a straightforward detection approach for trypsin should be developed as it is important diagnostic tool for a number of diseases. Herein, the impact of luminescent MoSe2 quantum dots on trypsin activity under different pH environment has been studied. Addition of trypsin to MoSe2 quantum dots enhanced the fluorescence of quantum dots whereas quantum dots resulted in quenching of fluorescence of trypsin. The quenching behavior at various pH and temperature was examined and revealed that the MoSe2-trypsin complex stabilized through the electrostatic interactions. The obtained negative values of zeta potential of the complex -0.11 mV, -0.30 mV and -0.59 mV for pH 6.0,7.6 and 9.0 respectively confirmed the stability of the complex. The separation between the donor and acceptor atoms in energy transfer mechanism was found to decrease (1.48 nm to 1.44 nm to 1.30 nm) with increasing value of pH. It was also evident that trypsin retained its enzyme activity in the trypsin-MoSe2 complex and under different pH environment. The Vant Hoff plot from quenching revealed 1 binding site for quantum dots by trypsin for all pH of buffer solution. The complex formation of trypsin-MoSe2 quantum dots was verified for the first time using fluorescence spectroscopy and it revealed that tryspin form complex with MoSe2 quantum dots through electrostatic interactions. Our results revealed that the MoSe2 quantum dots stabilized and sheltered the active sites of trypsin, which was likely the cause of the increased bioavailability of MoSe2 quantum dots in enzymes.
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Affiliation(s)
- Anmol Arora
- Centre of Advanced Study in Physics, Department of Physics, Panjab University, Chandigarh 160014, India
| | - Kriti Sharma
- Department of Physics, Goswami Ganesh Dutta Sanatan Dharma College, Sector 32-C, Chandigarh 160030, India.
| | - S K Tripathi
- Centre of Advanced Study in Physics, Department of Physics, Panjab University, Chandigarh 160014, India.
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4
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Kaeek M, Khoury LR. Toward Tunable Protein-Driven Hydrogel Lens. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2306862. [PMID: 37991134 PMCID: PMC10754117 DOI: 10.1002/advs.202306862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/15/2023] [Indexed: 11/23/2023]
Abstract
Despite the significant progress in protein-based materials, creating a tunable protein-activated hydrogel lens remains an elusive goal. This study leverages the synergistic relationship between protein structural dynamics and polymer hydrogel engineering to introduce a highly transparent protein-polymer actuator. By incorporating bovine serum albumin into polyethyleneglycol diacrylate hydrogels, the authors achieved enhanced light transmittance and conferred actuating capabilities to the hydrogel. Taking advantage of these features, a bilayer protein-driven hydrogel lens that dynamically modifies its focal length in response to pH changes, mimicking the adaptability of the human lens, is fabricated. The lens demonstrates durability and reproducibility, highlighting its potential for repetitive applications. This integration of protein-diverse biochemistry, folding nanomechanics, and polymer engineering opens up new avenues for harnessing the wide range of proteins to potentially propel various fields such as diagnostics, lab-on-chip, and deep-tissue bio-optics, advancing the understanding of incorporating biomaterials in the optical field.
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Affiliation(s)
- Maria Kaeek
- Department of Materials Science and EngineeringTechnion Israel Institute of TechnologyHaifa32000Israel
| | - Luai R. Khoury
- Department of Materials Science and EngineeringTechnion Israel Institute of TechnologyHaifa32000Israel
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5
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Havemeister F, Ghaeidamini M, Esbjörner EK. Monovalent cations have different effects on the assembly kinetics and morphology of α-synuclein amyloid fibrils. Biochem Biophys Res Commun 2023; 679:31-36. [PMID: 37660641 DOI: 10.1016/j.bbrc.2023.08.061] [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: 08/07/2023] [Accepted: 08/29/2023] [Indexed: 09/05/2023]
Abstract
Formation of α-synuclein amyloid fibrils is a pathological hallmark of Parkinson's disease and a phenomenon that is strongly modulated by environmental factors. Here, we compared effects of different monovalent cations (Li+, Na+, K+) on the formation and properties of α-synuclein amyloid fibrils. Na+ > Li+ were found to have concentration-dependent catalytic effects on primary nucleation whereas K+ ions acted inhibitory. We discuss this discrepancy in terms of a superior affinity of Na+ and Li+ to carboxylic protein groups, resulting in reduced Columbic repulsion and by considering K+ as an ion with poor protein binding and slight chaotropic character, which could promote random coil protein structure. K+ ions, furthermore, appeared to lower the β-sheet content of the fibrils and increase their persistence lengths, the latter we interpret as a consequence of lesser ion binding and hence higher line charge of the fibrils. The finding that Na+ and K+ have opposite effects on α-synuclein aggregation is intriguing in relation to the significant transient gradients of these ions across axonal membranes, but also important for the design and interpretation of biophysical assays where buffers containing these monovalent cations have been intermixedly used.
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Affiliation(s)
- Fritjof Havemeister
- Division of Chemical Biology, Department of Life Sciences, Chalmers University of Technology, Kemivägen 10, S-41296, Gothenburg, Sweden
| | - Marziyeh Ghaeidamini
- Division of Chemical Biology, Department of Life Sciences, Chalmers University of Technology, Kemivägen 10, S-41296, Gothenburg, Sweden
| | - Elin K Esbjörner
- Division of Chemical Biology, Department of Life Sciences, Chalmers University of Technology, Kemivägen 10, S-41296, Gothenburg, Sweden.
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6
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Puri S, Thaokar RM. Study of the interfacial viscoelasticity of human serum albumin microcapsules using a viscoelasto-electrohydrodynamic technique. SOFT MATTER 2023; 19:6945-6957. [PMID: 37664908 DOI: 10.1039/d3sm00602f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Crosslinked proteins are widely used as the encapsulating membranes in microcapsules for many biomedical and food industries. The interfacial rheological properties of these capsules are due to the complex microstructure of cross-linked globular proteins owing to structural changes at quaternary, tertiary and secondary levels. These changes in structure can be induced by high protein concentration, hydrophobic-hydrophillic interfaces, and pH. In this work, the interfacial viscoelastic rheological properties of human serum albumin (HSA) microcapsules are estimated using a novel electrodeformation technique exhibiting creep and oscillatory responses. Insights into the microstructure-rheology relationship are obtained using FTIR and SEM studies. The results show a complex dependence of the interfacial properties on the size, concentration and pH of the capsules. An interplay of inter-molecular interactions, adsorption and multilayer formation, accessibility to reactive functional groups, and dependence on the relative content of alpha helix, beta sheet and beta turn is observed. The interfacial rheological properties are estimated using the Burger model and creep is found to sensitively affect the rheological properties due to irreversible changes in microstructure. Furthermore, the electrodeformation technique allows analysis of interfacial rheology at high frequencies, 10 Hz to 1 kHz, which is otherwise not easily possible with conventional rheometers.
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Affiliation(s)
- Sneha Puri
- Chemical Engineering Department, Indian Institute of Technology Bombay, Mumbai, India.
| | - Rochish M Thaokar
- Chemical Engineering Department, Indian Institute of Technology Bombay, Mumbai, India.
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7
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Rong X, Mehwish N, Niu X, Zhu N, Lee BH. Human Albumin-Based Hydrogels for Their Potential Xeno-Free Microneedle Applications. Macromol Biosci 2023; 23:e2200463. [PMID: 36563292 DOI: 10.1002/mabi.202200463] [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: 10/30/2022] [Revised: 12/12/2022] [Indexed: 12/24/2022]
Abstract
Nowadays, hydrogels-based microneedles (MNs) have attracted a great interest owing to their outstanding qualities for biomedical applications. For the fabrication of hydrogels-based microneedles as tissue engineering scaffolds and drug delivery carriers, various biomaterials have been tested. They are required to feature tunable physiochemical properties, biodegradability, biocompatibility, nonimmunogenicity, high drug loading capacity, and sustained drug release. Among biomaterials, human proteins are the most ideal biomaterials for fabrication of hydrogels-based MNs; however, they are mechanically weak and poorly processible. To the best of the knowledge, there are no reports of xeno-free human protein-based MNs so far. Here, human albumin-based hydrogels and microneedles for tissue engineering and drug delivery by using relatively new processible human serum albumin methacryloyl (HSAMA) are engineered. The resultant HSAMA hydrogels display tunable mechanical properties, biodegradability, and good biocompatibility. Moreover, the xeno-free HSAMA microneedles display a sustained drug release profile and significant mechanical strength to penetrate the model skin. In vitro, they also show good biocompatibility and anticancer efficacy. Sustainable processible human albumin-based biomaterials may be employed as a xeno-free platform in vivo for tissue engineering and drug delivery in clinical trials in the future.
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Affiliation(s)
- Xiaona Rong
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, 325011, China.,Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang, 325000, China
| | - Nabila Mehwish
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, 325011, China.,Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang, 325000, China
| | - Xueming Niu
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, 325011, China.,Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang, 325000, China
| | - Niteng Zhu
- Wenzhou Medical University, School of Biomedical Engineering, Wenzhou, Zhejiang, 325000, China
| | - Bae Hoon Lee
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, 325011, China.,Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang, 325000, China
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8
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Pielesz A, Biniaś D, Waksmańska W, Bobiński R. Lipid bands of approx. 1740 cm -1 as spectral biomarkers and image of tissue oxidative stress. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 286:121926. [PMID: 36257216 DOI: 10.1016/j.saa.2022.121926] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 09/20/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
Studies with the use of FTIR and FTR methods to find spectroscopic biomarkers within the 1740 cm-1 band of pathological tissues found that oxidative stress, including damage to epidermis and structural changes in pathological amnion and placenta tissue, are associated with the occurrence of products of lipid peroxidation and have impact on fluidity and transport function of membranes. In particular, the findings show that the absence of a marker lipid band of approx. 1743 cm-1 and the occurrence of a minimum of 1764 cm-1 (FTIR) and 1734 cm-1 (FTR) testify to the integrity and absence of damage in the allogeneic dermis, while the presence the 1743 or 1747 cm-1 bands indicates denaturation of the thermally or electrically burned epidermis. The absence of a marker lipid band of approx. 1736-1740 cm-1 for a healthy placental and amniotic tissue and the presence of a band of 1740 cm-1 indicate placental gestosis, while the presence of a band of 1742 cm-1 indicates hypotrophy. The 1738 cm-1 bands indicate amniotic macrosomia. Structural changes caused by tissue modification with antioxidants, which were observed on individual samples: the L-ascorbic acid (presence of a lipid band marker at a frequency of 1755 cm-1), sodium ascorbate (disappearance of the marker band), orthosilicic acid (disappearance or decrease in the intensity of the marker band with a decrease in the concentration of the modifier), as well as graphene oxide (separation of the marker lipid band of 1755 cm-1), inform us about the effect of modifiers on the tissue repair process. The studies also tracked spectral changes identified in serum. Withing the range of the lipid band and the amide I and II bands (α → β conversion), there are clear differences between normal and pathological serum lyophilisates and a sample analyzed from the solution.
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Affiliation(s)
- Anna Pielesz
- University of Bielsko-Biała, Faculty of Materials, Civil and Environmental Engineering, ul. Willowa 2, 43-300 Bielsko-Biała, Poland.
| | - Dorota Biniaś
- University of Bielsko-Biała, Faculty of Materials, Civil and Environmental Engineering, ul. Willowa 2, 43-300 Bielsko-Biała, Poland
| | - Wioletta Waksmańska
- University of Bielsko-Biała, Faculty of Health Sciences, ul. Willowa 2, 43-300 Bielsko-Biała, Poland
| | - Rafał Bobiński
- University of Bielsko-Biała, Faculty of Health Sciences, ul. Willowa 2, 43-300 Bielsko-Biała, Poland
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9
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Song Y, Li T, Zhang X, Wang L. Investigating the effects of ion strength on amyloid fibril formation of rice proteins. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2022.102068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Jin W, Yang X, Shang W, Wu Y, Guo C, Huang W, Deng Q, Peng D. Assembled structure and interfacial properties of oleosome-associated proteins from Camellia oleifera as natural surface-active agents. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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11
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Akdoğan E, Tolga Şirin H, Öztatlı H, Kılıçarslan B, Bayram C, Garipcan B. Adsorption behavior of serum proteins on anodized titanium is driven by surface nanomorphology. Biointerphases 2022; 18:061001. [PMID: 38063476 DOI: 10.1116/6.0003092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 11/14/2023] [Indexed: 12/18/2023] Open
Abstract
Protein adsorption behavior can play a critical role in defining the outcome of a material by affecting the subsequent in vivo response to it. To date, the effect of surface properties on protein adsorption behavior has been mainly focused on surface chemistry, but research on the effect of nanoscale surface topography remains limited. In this study, the adsorption behavior of human serum albumin, immunoglobulin G, and fibrinogen in terms of the adsorbed amount and conformational changes were investigated on bare and anodized titanium (Ti) samples (40 and 60 V applied voltages). While the surface chemistry, RMS surface roughness, and arithmetic surface roughness of the anodized samples were similar, they had distinctly different nanomorphologies identified by atomic force microscopy and scanning electron microscopy, and the surface statistical parameters, surface skewness Ssk and kurtosis Sku. The Feret pore size distribution was more uniform on the 60 V sample, and surface nanostructures were more symmetrical with higher peaks and deeper pores. On the other hand, the 40 V sample surface presented a nonuniform pore size distribution and asymmetrical surface nanostructures with lower peaks and shallower pores. The amount of surface-adsorbed protein increased on the sample surfaces in the order of Ti < 40 V < 60 V with the predominant factor affecting the amount of surface-adsorbed protein being the increased surface area attained by pore formation. The secondary structure of all adsorbed proteins deviated from that of their native counterparts. While comparing the secondary structure components of proteins on anodized surfaces, it was observed that all three proteins retained more of their secondary structure composition on the surface with more uniform and symmetrical nanofeatures than the surface having asymmetrical nanostructures. Our results suggest that the nanomorphology of the peaks and outer walls of the nanotubes can significantly influence the conformation of adsorbed serum proteins, even for surfaces having similar roughness values.
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Affiliation(s)
- Ebru Akdoğan
- Department of Chemistry, Ankara Hacı Bayram Veli University, 06900 Ankara, Turkey
| | - Hasret Tolga Şirin
- Department of Chemistry, Ankara Hacı Bayram Veli University, 06900 Ankara, Turkey
| | - Hayriye Öztatlı
- Institute of Biomedical Engineering, Boğaziçi University, 34684 Istanbul, Turkey
| | - Boğaç Kılıçarslan
- Department of Nanotechnology and Nanomedicine, Hacettepe University, 06800 Ankara, Turkey
| | - Cem Bayram
- Department of Nanotechnology and Nanomedicine, Hacettepe University, 06800 Ankara, Turkey
| | - Bora Garipcan
- Institute of Biomedical Engineering, Boğaziçi University, 34684 Istanbul, Turkey
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12
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Slawinski M, Kaeek M, Rajmiel Y, Khoury LR. Acetic Acid Enables Precise Tailoring of the Mechanical Behavior of Protein-Based Hydrogels. NANO LETTERS 2022; 22:6942-6950. [PMID: 36018622 PMCID: PMC9479135 DOI: 10.1021/acs.nanolett.2c01558] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 08/18/2022] [Indexed: 06/15/2023]
Abstract
Engineering viscoelastic and biocompatible materials with tailored mechanical and microstructure properties capable of mimicking the biological stiffness (<17 kPa) or serving as bioimplants will bring protein-based hydrogels to the forefront in the biomaterials field. Here, we introduce a method that uses different concentrations of acetic acid (AA) to control the covalent tyrosine-tyrosine cross-linking interactions at the nanoscale level during protein-based hydrogel synthesis and manipulates their mechanical and microstructure properties without affecting protein concentration and (un)folding nanomechanics. We demonstrated this approach by adding AA as a precursor to the preparation buffer of a photoactivated protein-based hydrogel mixture. This strategy allowed us to synthesize hydrogels made from bovine serum albumin (BSA) and eight repeats protein L structure, with a fine-tailored wide range of stiffness (2-35 kPa). Together with protein engineering technologies, this method will open new routes in developing and investigating tunable protein-based hydrogels and extend their application toward new horizons.
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Affiliation(s)
- Marina Slawinski
- Department
of Physics, University of Wisconsin—Milwaukee, 3135 N. Maryland Ave, Milwaukee, Wisconsin 53211, United States
| | - Maria Kaeek
- Department
of Materials Science and Engineering, Technion
Israel Institute of Technology, Haifa 32000, Israel
| | - Yair Rajmiel
- Department
of Materials Science and Engineering, Technion
Israel Institute of Technology, Haifa 32000, Israel
| | - Luai R. Khoury
- Department
of Materials Science and Engineering, Technion
Israel Institute of Technology, Haifa 32000, Israel
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13
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Li L, Liu J, Li X, Tang Y, Shi C, Zhang X, Cui Y, Wang L, Xu W. Influencing factors and characterization methods of nanoparticles regulating amyloid aggregation. SOFT MATTER 2022; 18:3278-3290. [PMID: 35437550 DOI: 10.1039/d1sm01704g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Human disorders associated with amyloid aggregation, such as Alzheimer's disease and Parkinson's disease, afflict the lives of millions worldwide. When peptides and proteins in the body are converted to amyloids, which have a tendency to aggregate, the toxic oligomers produced during the aggregation process can trigger a range of diseases. Nanoparticles (NPs) have been found to possess surface effects that can modulate the amyloid aggregation process and they have potential application value in the treatment of diseases related to amyloid aggregation and fibrillary tangles. In this review, we discuss recent progress relating to studies of nanoparticles that regulate amyloid aggregation. The review focuses on the factors influencing this regulation, which are important as guidelines for the future design of NPs for the treatment of amyloid aggregation. We describe the characterization methods that have been utilized so far in such studies. This review provides research information and characterization methods for the rational design of NPs, which should result in therapeutic strategies for amyloid diseases.
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Affiliation(s)
- Lingyi Li
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
| | - Jianhui Liu
- Yantai Center of Ecology and Environment Monitoring of Shandong Province, Yantai 264025, China
| | - Xinyue Li
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
| | - Yuanhan Tang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
| | - Changxin Shi
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
| | - Xin Zhang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
| | - Yuming Cui
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
| | - Linlin Wang
- State Key Laboratory of Long-Acting and Targeting Drug Delivery System, Shandong Luye Pharmaceutical Co., Ltd, Yantai 264000, China.
| | - Wenlong Xu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
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14
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Yang C, Yu C, Zhang M, Yang X, Dong H, Dong Q, Zhang H, Li L, Guo X, Zang H. Investigation of protective effect of ethanol on the natural structure of protein with infrared spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 271:120935. [PMID: 35121476 DOI: 10.1016/j.saa.2022.120935] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/16/2022] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
The stability of biological drugs with protein as an active substance depends heavily on the retention of natural protein structure during freeze-drying. Stabilizers have become important substances in the process of protein freeze-drying. In order to further understand the mechanism of the interaction between protein and stabilizers, human serum albumin (HSA) and simple hydroxyl compound ethanol were used as models. Infrared (IR) spectroscopy combined with chemometrics was implemented to investigate the changes of secondary structure and hydration of HSA when different concentrations of ethanol were considered as interference. Through the analysis of the protein secondary structure and hydrated layer, we found that the addition of ethanol-d6 increased the α-helix of HSA and reduced the disordered structure. The hydrogen bond structure around HSA was enhanced and intermolecular aggregation was reduced through the action of the water molecules. The hypothesis was verified by circular dichroism (CD) and transmission electron microscopy (TEM) observation by adding different concentrations of ethanol-d6. It was found that a small amount of ethanol could protect the native conformation of HSA. In conclusion, this study revealed the mechanism of ethanol as a protein protector, provided a new idea for protein purification process and a theoretical basis for biomolecular interaction.
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Affiliation(s)
- Cui Yang
- NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Chen Yu
- NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Mengqi Zhang
- NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Xiangchun Yang
- NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Hailing Dong
- NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Qin Dong
- NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Hui Zhang
- National Glycoengineering Research Center, Shandong University, Jinan, Shandong 250012, China; Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Jinan, Shandong 250012, China
| | - Lian Li
- NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China; Key Laboratory of Chemical Biology (Ministry of Education), Shandong University, Jinan, Shandong 250012, China
| | - Xueping Guo
- Bloomage Biotechnology Corporation Limited, Tianchen Street 678, Jinan, Shandong 250012, China
| | - Hengchang Zang
- NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China; National Glycoengineering Research Center, Shandong University, Jinan, Shandong 250012, China; Key Laboratory of Chemical Biology (Ministry of Education), Shandong University, Jinan, Shandong 250012, China.
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15
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Papagiannopoulos A, Selianitis D, Chroni A, Allwang J, Li Y, Papadakis CM. Preparation of trypsin-based nanoparticles, colloidal properties and ability to bind bioactive compounds. Int J Biol Macromol 2022; 208:678-687. [PMID: 35341884 DOI: 10.1016/j.ijbiomac.2022.03.131] [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: 12/02/2021] [Revised: 03/02/2022] [Accepted: 03/13/2022] [Indexed: 11/30/2022]
Abstract
Nanoparticles (NPs) based on the proteolytic enzyme trypsin (TRY) were prepared by a biocompatible methodology. TRY co-assembled with the anionic polysaccharide chondroitin sulfate (CS) in complexes with well-defined distributions of radii in the range of 100-200 nm by electrostatic complexation at acidic conditions. At pH 7 the complexes were unstable and lost their monomodal size distribution which is potentially related to TRY's weak positive net surface charge and a large negative charge patch that forms at neutral pH. Thermal treatment at conditions which were not expected to interfere with TRY's proteolytic activity was used to stabilize the complexes into NPs that resisted disintegration at pH 7 taking advantage of the ability of the TRY globules to thermally aggregate. The secondary conformation of TRY within the NPs was found fairly unperturbed even after thermal treatment which is crucial for its physiological function. The CS-TRY NPs could bind and encapsulate the bioactive substances curcumin (CUR) and β-carotene (β-C) owing to TRY's hydrophobic domains. The CS-TRY NPs may be considered as a platform for the immobilized active enzyme and multifunctional NPs for hydrophobic bioactive compounds.
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Affiliation(s)
- Aristeidis Papagiannopoulos
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece.
| | - Dimitrios Selianitis
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Angeliki Chroni
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Johannes Allwang
- Soft Matter Physics Group, Physics Department, Technical University of Munich, James-Franck-Str. 1, 85748 Garching, Germany
| | - Yanan Li
- Soft Matter Physics Group, Physics Department, Technical University of Munich, James-Franck-Str. 1, 85748 Garching, Germany
| | - Christine M Papadakis
- Soft Matter Physics Group, Physics Department, Technical University of Munich, James-Franck-Str. 1, 85748 Garching, Germany
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16
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Spectral signature of multiple sclerosis. Preliminary studies of blood fraction by ATR FTIR technique. Biochem Biophys Res Commun 2022; 593:40-45. [DOI: 10.1016/j.bbrc.2022.01.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 11/17/2022]
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17
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Zhu H, Wu S, Zhang Z, MA T. Effect of crosslinking and drying method on the oxidative stability of lipid microcapsules obtained by complex coacervation. Food Funct 2022; 13:9049-9059. [DOI: 10.1039/d2fo01875f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The crosslinking and drying method of microcapsules prepared by complex coacervation has been investigated in order to reach a better control of the oxidative stability of final powder product. Methyl...
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18
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Afkham S, Hanaee J, Zakariazadeh M, Fathi F, Shafiee S, Soltani S. Molecular mechanism and thermodynamic study of Rosuvastatin interaction with human serum albumin using a surface plasmon resonance method combined with a multi-spectroscopic, and molecular modeling approach. Eur J Pharm Sci 2021; 168:106005. [PMID: 34688823 DOI: 10.1016/j.ejps.2021.106005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 09/01/2021] [Accepted: 09/08/2021] [Indexed: 11/18/2022]
Abstract
Rosuvastatin (ROS) is an anti-cholesterol drug belonging to statin drugs. A multi-spectroscopic approach combined with a molecular modeling technique was used to assess ROS association with human serum albumin (HSA). Besides, an HSA immobilized surface plasmon resonance (SPR) chip was used to obtain kinetic parameters (ka, kd, and KD). Fluorescence quenching titrations revealed that ROS interacts with HSA via a dynamic, exothermic, enthalpy-driven mechanism. Hydrogen bonds and van der Waals interactions as the most prevalent bonding forces contribute to ROS-HSA complex formation. ROS binding to HSA alters HSA conformation. The SPR results indicated that ROS and HSA have a strong interaction possessing an equilibrium constant (KD) of 1.55 × 10-8 M at 298 K. A competitive analysis of site markers showed that ROS has a higher tendency to bind to the warfarin binding site (site IIA), which may explain why warfarin has a higher anticoagulant effect in ROS users. FRET analysis indicated that non-radiation energy transfer occurred between ROS and HSA. According to molecular docking studies, ROS prefers binding sites IB and IIA while the ROS-HSA complex stabilizes due to the hydrogen bond and π-π interaction. The presence of hydrogen-bond donors and acceptors, as well as aromatic ROS moieties, facilitates such interactions.
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Affiliation(s)
- Sheida Afkham
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jalal Hanaee
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Pharmacy Faculty, Tabriz University of medical sciences, Tabriz, Iran
| | - Mostafa Zakariazadeh
- Department of Biochemistry, Faculty of Sciences, Payame Noor University, Tehran, Iran
| | - Farzaneh Fathi
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran; Biosensor Sciences and Technologies Research Center (BSTRC), Ardabil University of Medical Sciences, Ardabil, Iran
| | - Samira Shafiee
- Pharmacy Faculty, Tabriz University of medical sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Somaieh Soltani
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Pharmacy Faculty, Tabriz University of medical sciences, Tabriz, Iran.
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19
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Various Simulated Body Fluids Lead to Significant Differences in Collagen Tissue Engineering Scaffolds. MATERIALS 2021; 14:ma14164388. [PMID: 34442910 PMCID: PMC8399520 DOI: 10.3390/ma14164388] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/29/2021] [Accepted: 08/03/2021] [Indexed: 11/23/2022]
Abstract
This study aims to point out the main drawback with respect to the design of simulated body environments. Three media commonly used for the simulation of the identical body environment were selected, i.e., Kokubo’s simulated body fluid that simulates the inorganic component of human blood plasma, human blood plasma, and phosphate buffer saline. A comparison was performed of the effects of the media on collagen scaffolds. The mechanical and structural effects of the media were determined via the application of compression mechanical tests, the determination of mass loss, and image and micro-CT analyses. The adsorption of various components from the media was characterized employing energy-dispersive spectrometry. The phase composition of the materials before and after exposure was determined using X-ray diffraction. Infrared spectroscopy was employed for the interpretation of changes in the collagen secondary structure. Major differences in terms of the mechanical properties and mass loss were observed between the three media. Conversely, only minor structural changes were detected. Since no general recommendation exists for selecting the simulated body environment, it is necessary to avoid the simplification of the results and, ideally, to utilize alternative methods to describe the various aspects of degradation processes that occur in the media.
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Warsi MS, Habib S, Talha M, Mir AR, Alam K, Ali A, Moinuddin. Characterization of human serum albumin modified by hair dye component, 4-chloro-1,2-phenylenediamine: Role in protein aggregation, redox biology and cytotoxicity. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115731] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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21
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Abstract
Bioelectrocatalysis using redox enzymes appears as a sustainable way for biosensing, electricity production, or biosynthesis of fine products. Despite advances in the knowledge of parameters that drive the efficiency of enzymatic electrocatalysis, the weak stability of bioelectrodes prevents large scale development of bioelectrocatalysis. In this review, starting from the understanding of the parameters that drive protein instability, we will discuss the main strategies available to improve all enzyme stability, including use of chemicals, protein engineering and immobilization. Considering in a second step the additional requirements for use of redox enzymes, we will evaluate how far these general strategies can be applied to bioelectrocatalysis.
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22
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Farsad SA, Haghaei H, Shaban M, Zakariazadeh M, Soltani S. Investigations of the molecular mechanism of diltiazem binding to human serum albumin in the presence of metal ions, glucose and urea. J Biomol Struct Dyn 2021; 40:6868-6879. [PMID: 33666142 DOI: 10.1080/07391102.2021.1891137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The molecular mechanism and thermodynamic properties of the interaction between diltiazem (DTZ) and human serum albumin (HSA), has been studied in vitro using spectroscopic techniques (UV-Vis, fluorescence, FTIR), and molecular docking methods. The effect of acidic and basic pH, glucose, urea, and metal ions on the DTZ-HSA binding has been investigated as well. According to the results, there is a 1:1 interaction between DTZ and HSA, while the quenching mechanism is static up to 313 K. The apparent binding constant was 2.09 × 106 M-1 that indicates a strong binding between DTZ and HSA. DTZ binding was increased in acidic pH while its binding was slowly decreased in the presence of glucose, urea, and metal ions. Thermodynamic studies showed that DTZ binds to HSA via an exothermic and spontaneous reaction via hydrogen bonding and electrostatic interactions. The conformational alteration of HSA is obvious according to the FTIR study. The site marker competitive study confirmed the binding of DTZ to the warfarin binding site. Molecular docking studies showed that DTZ binds to subdomain IB (-9.22 kcal mol-1) and subdomain IIIA (-9.03 kcal mol-1) with a higher tendency. Also, the results showed that the oxygen and nitrogen atoms of hydroxyl and amino functional groups of DTZ facilitate hydrogen bond formation. HighlightsStrong binding of diltiazem to HSA was studied and confirmed by fluorescence quenching titrations.Diltiazem binding to HSA reduces in the presence of metal ions, glucose, urea and alkaline pH.Diltiazem binding to HSA is exothermic and spontaneous.
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Affiliation(s)
- Sara Asadi Farsad
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Haghaei
- Nutrition and Food Sciences Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mina Shaban
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mostafa Zakariazadeh
- Department of Biochemistry, Faculty of Sciences, Payame Noor University, Tehran, Iran
| | - Somaieh Soltani
- Drug Applied Research Center and Pharmacy Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
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23
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Lebedeva NS, Yurina ES, Gubarev YA, Koifman OI. Molecular mechanisms causing albumin aggregation. The main role of the porphyrins of the blood group. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 246:118975. [PMID: 33017788 DOI: 10.1016/j.saa.2020.118975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/30/2020] [Accepted: 09/17/2020] [Indexed: 06/11/2023]
Abstract
In this paper was studied the interaction of deutero- and hematoporphyrin with bovine serum albumin, using various methods of physico-chemical analysis. It was established that the localization of porphyrins occurred in the IB subdomain, while hematoporphyrin interacted with the protein in a monomeric form, and deuteroporphyrin - as a J-dimer. Based on spectral studies, the affinity constants of binding albumin with porphyrins were determined, and the affinity of the protein for deuteroporphyrin appeared to be higher than for hematoporphyrin. It was shown that the interaction of albumin with the studied porphyrins led to a change in the secondary structure of the protein, it being accompanied by a decrease in the proportion of disordered protein fragments and an increase in β-folding.
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Affiliation(s)
- Natalia Sh Lebedeva
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Ivanovo 153045, Russia
| | - Elena S Yurina
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Ivanovo 153045, Russia
| | - Yury A Gubarev
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Ivanovo 153045, Russia.
| | - Oskar I Koifman
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Ivanovo 153045, Russia; Ivanovo State University of Chemistry and Technology, 153000 Ivanovo, Russia
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24
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Trypsin activity and freeze-thaw stability in the presence of ions and non-ionic surfactants. J Biosci Bioeng 2020; 131:234-240. [PMID: 33189544 DOI: 10.1016/j.jbiosc.2020.10.010] [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: 05/18/2020] [Revised: 10/22/2020] [Accepted: 10/25/2020] [Indexed: 01/05/2023]
Abstract
Trypsin is a serine protease with important applications such as protein sequencing and tissue dissociation. Preserving protein structure and its activity during freeze-thawing and prolonging its shelf life is one of the most interesting tasks in biochemistry. In the present study, trypsin cryoprotection was achieved by altering buffer composition. Sodium phosphate buffer at pH 8.0 led to pH shift-induced destabilization of trypsin and formation of a molten globule, followed by significant activity loss (about 70%). Potassium phosphate and ammonium bicarbonate buffers at pH 8.0 were used with up to 90% activity recovery rate after 7 freeze-thaw cycles. The addition of non-ionic surfactants Tween 20 and Tween 80 led to up to 99% activity recovery rate. Amide I region changes, corresponding to specific secondary structures in the Fourier transform infrared (FTIR) spectrum, were modest in the case of Tween 20 and Tween 80. On the other hand, the addition of Triton X-100 led to the destabilization of α-helicoidal segments of trypsin structure after 7 freeze-thaw cycles but also increased protein substrate availability.
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