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Kim W, Ngo HV, Nguyen HD, Park JM, Lee KW, Park C, Park JB, Lee BJ. Nanonization and Deformable Behavior of Fattigated Peptide Drug in Mucoadhesive Buccal Films. Pharmaceutics 2024; 16:468. [PMID: 38675128 PMCID: PMC11054133 DOI: 10.3390/pharmaceutics16040468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/19/2024] [Accepted: 03/22/2024] [Indexed: 04/28/2024] Open
Abstract
This study was tasked with the design of mucoadhesive buccal films (MBFs) containing a peptide drug, leuprolide (LEU), or its diverse nanoparticles (NPs), for enhanced membrane permeability via self-assembled nanonization and deformable behavior. An LEU-oleic acid conjugate (LOC) and its self-assembled NPs (LON) were developed. Additionally, a deformable variant of LON (d-LON) was originally developed by incorporating l-α-phosphatidylcholine into LON as an edge activator. The physicochemical properties of LON and d-LON, encompassing particle size, zeta potential, and deformability index (DI), were evaluated. MBFs containing LEU, LOC, and NPs (LON, d-LON) were prepared using the solvent casting method by varying the ratio of Eudragit RLPO and hydroxypropyl methylcellulose, with propylene glycol used as a plasticizer. The optimization of MBF formulations was based on their physicochemical properties, including in vitro residence time, dissolution, and permeability. The dissolution results demonstrated that the conjugation of oleic acid to LEU exhibited a more sustained LEU release pattern by cleaving the ester bond of the conjugate, as compared to the native LEU, with reduced variability. Moreover, the LOC and its self-assembled NPs (LON, d-LON), equivalent to 1 mg LEU doses in MBF, exhibited an amorphous state and demonstrated better permeability through the nanonization process than LEU alone, regardless of membrane types. The incorporation of lauroyl-L-carnitine into the films as a permeation enhancer synergistically augmented drug permeability. Most importantly, the d-LON-loaded buccal films showed the highest permeability, due to the deformability of NPs. Overall, MBF-containing peptide NPs and permeation enhancers have the potential to replace parenteral LEU administration by improving LEU druggability and patient compliance.
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Affiliation(s)
- Woojun Kim
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea; (W.K.); (H.V.N.); (H.D.N.); (J.-M.P.)
| | - Hai V. Ngo
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea; (W.K.); (H.V.N.); (H.D.N.); (J.-M.P.)
| | - Hy D. Nguyen
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea; (W.K.); (H.V.N.); (H.D.N.); (J.-M.P.)
| | - Ji-Min Park
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea; (W.K.); (H.V.N.); (H.D.N.); (J.-M.P.)
| | - Kye Wan Lee
- Dongkook Pharmaceutical Co., Ltd., Seoul 06072, Republic of Korea;
| | - Chulhun Park
- College of Pharmacy, Jeju National University, Jeju 63243, Republic of Korea;
| | - Jun-Bom Park
- College of Pharmacy, Sahmyook University, Seoul 01795, Republic of Korea
| | - Beom-Jin Lee
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea; (W.K.); (H.V.N.); (H.D.N.); (J.-M.P.)
- Institute of Pharmaceutical Science and Technology, Ajou University, Suwon 16499, Republic of Korea
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2
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Bteich M, Poulin P, Haddad S. The potential protein-mediated hepatic uptake: discussion on the molecular interactions between albumin and the hepatocyte cell surface and their implications for the in vitro-to-in vivo extrapolations of hepatic clearance of drugs. Expert Opin Drug Metab Toxicol 2019; 15:633-658. [DOI: 10.1080/17425255.2019.1640679] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Michel Bteich
- Department of Environmental and Occupational Health, School of Public Health, Université de Montréal, Montreal, Quebec, Canada
| | - Patrick Poulin
- Department of Environmental and Occupational Health, School of Public Health, Université de Montréal, Montreal, Quebec, Canada
- Consultant Patrick Poulin Inc., Québec city, Canada
| | - Sami Haddad
- Department of Environmental and Occupational Health, School of Public Health, Université de Montréal, Montreal, Quebec, Canada
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3
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Dai Z, Yang A, Bao X, Yang R. Facile Non-Enzymatic Electrochemical Sensing for Glucose Based on Cu 2O-BSA Nanoparticles Modified GCE. SENSORS (BASEL, SWITZERLAND) 2019; 19:E2824. [PMID: 31238594 PMCID: PMC6631518 DOI: 10.3390/s19122824] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 06/20/2019] [Accepted: 06/21/2019] [Indexed: 12/12/2022]
Abstract
Transition-metal nanomaterials are very important to non-enzymatic glucose sensing because of their excellent electrocatalytic ability, good selectivity, the fact that they are not easily interfered with by chloride ion (Cl-), and low cost. However, the linear detection range needs to be expanded. In this paper, Cu2O-bovine serum albumin (BSA) core-shell nanoparticles (NPs) were synthesized for the first time in air at room temperature by a facile and green route. The structure and morphology of Cu2O-BSA NPs were characterized. The as-prepared Cu2O-BSA NPs were used to modify the glassy carbon electrode (GCE) in a Nafion matrix. By using cyclic voltammetry (CV), the influence from scanning speed, concentration of NaOH, and load of Cu2O-BSA NPs for the modified electrodes was probed. Cu2O-BSA NPs showed direct electrocatalytic activity for the oxidation of glucose in 50 mM NaOH solution at 0.6 V. The chronoamperometry result showed this constructing sensor in the detection of glucose with a lowest detection limit of 0.4 μM, a linear detection range up to 10 mM, a high sensitivity of 1144.81 μAmM-1cm-2 and reliable anti-interference property to Cl-, uric acid (UA), ascorbic acid (AA), and acetaminophen (AP). Cu2O-BSA NPs are promising nanostructures for the fabrication of non-enzymatic glucose electrochemical sensing devices.
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Affiliation(s)
- Zhikuang Dai
- Department of Physics, College of Information Science and Engineering, Ocean University of China, Qingdao 266100, Shandong, China.
| | - Ailing Yang
- Department of Physics, College of Information Science and Engineering, Ocean University of China, Qingdao 266100, Shandong, China.
| | - Xichang Bao
- Qingdao Institute of Bioenergy & Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266100, Shandong, China.
| | - Renqiang Yang
- Qingdao Institute of Bioenergy & Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266100, Shandong, China.
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4
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Nasihat Sheno N, Farhadi S, Maleki A, Hamidi M. A novel approach for the synthesis of phospholipid bilayer-coated zeolitic imidazolate frameworks: preparation and characterization as a pH-responsive drug delivery system. NEW J CHEM 2019. [DOI: 10.1039/c8nj04715d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The first example of enveloping of the ZIF family by PLB as an effective biodegradable/biocompatible/responsive drug delivery system.
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Affiliation(s)
- Nadia Nasihat Sheno
- Department of Chemistry
- Faculty of Sciences
- Lorestan University
- 68135-465 Khoramabad
- Iran
| | - Saeed Farhadi
- Department of Chemistry
- Faculty of Sciences
- Lorestan University
- 68135-465 Khoramabad
- Iran
| | - Aziz Maleki
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC)
- Department of Pharmaceutical Nanotechnology
- School of Pharmacy
- Zanjan University of Medical Sciences
- 45139-56184 Zanjan
| | - Mehrdad Hamidi
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC)
- Department of Pharmaceutical Nanotechnology
- School of Pharmacy
- Zanjan University of Medical Sciences
- 45139-56184 Zanjan
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5
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Zhang Y, Yu J, Dong XD, Ji HY. Research on Characteristics, Antioxidant and Antitumor Activities of Dihydroquercetin and Its Complexes. Molecules 2017; 23:molecules23010020. [PMID: 29271900 PMCID: PMC5943956 DOI: 10.3390/molecules23010020] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 12/13/2017] [Accepted: 12/20/2017] [Indexed: 01/18/2023] Open
Abstract
Dihydroquercetin is a kind of dihydroflavonol compounds with antioxidant, antitumor, antivirus and radioresistance activities. This study attempted to produce the dihydroquercetin complexes with lecithin and β-cyclodextrin, and research their characteristics and bioactivities via ultraviolet spectrum (UV), infrared spectroscopy (IR), scanning electron microscope (SEM), differential scanning calorimetry (DSC), X-ray diffraction spectrum (XRD), and MTT assay. Results showed that the complexes with lecithin and β-cyclodextrin could improve the solubility and dissolution rate, and remove the characteristic endothermic peak of dihydroquercetin. IR spectra proved their interaction, and results of SEM and XRD showed the amorphous characteristics of the dihydroquercetin compounds. These results indicated that dihydroquercetin was combined by lecithin or β-cyclodextrin with better physical and chemical properties, which would effectively improve the application value in the food and drug industries.
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Affiliation(s)
| | | | - Xiao-Dan Dong
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, School of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Hai-Yu Ji
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, School of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China.
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6
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Liu D, Zheng H. Xylenol orange probe-based spectroscopic insight into the interaction between strontium (II) and bovine serum albumin. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5508-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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7
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Rokach S, Ottaviani MF, Shames AI, Aserin A, Garti N. Behavior of PPI-G2 Dendrimer in a Microemulsion. J Phys Chem B 2017; 121:2339-2349. [DOI: 10.1021/acs.jpcb.6b10237] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Shifra Rokach
- The
Ratner Chair of Chemistry, Casali Institute of Applied Chemistry,
The Institute of Chemistry, The Hebrew University of Jerusalem, Edmond
J. Safra Campus, Givat Ram, Jerusalem 9190401, Israel
- Judea Regional Research & Development Center, Carmel 9040400, Israel
| | - Maria Francesca Ottaviani
- Department
of Earth, Life and Environment Sciences, University of Urbino, Loc. Crocicchia, Urbino 61029, Italy
| | - Alexander I. Shames
- Department
of Physics, Ben-Gurion University of the Negev, P.O. Box 653, Be’er-Sheva 84105, Israel
| | - Abraham Aserin
- The
Ratner Chair of Chemistry, Casali Institute of Applied Chemistry,
The Institute of Chemistry, The Hebrew University of Jerusalem, Edmond
J. Safra Campus, Givat Ram, Jerusalem 9190401, Israel
| | - Nissim Garti
- The
Ratner Chair of Chemistry, Casali Institute of Applied Chemistry,
The Institute of Chemistry, The Hebrew University of Jerusalem, Edmond
J. Safra Campus, Givat Ram, Jerusalem 9190401, Israel
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8
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Liu M, Dong F, Zhang W, Nie X, Wei H, Sun S, Zhong X, Liu Y, Wang D. Contribution of surface functional groups and interface interaction to biosorption of strontium ions by Saccharomyces cerevisiae under culture conditions. RSC Adv 2017. [DOI: 10.1039/c7ra08416a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Surface functional group contributions to biosorption of strontium ions bySaccharomyces cerevisiaeas well as interface interactions were elucidated.
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Affiliation(s)
- Mingxue Liu
- Life Science and Engineering College
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Faqin Dong
- Key Laboratory of Solid Waste Treatment and Resource Recycle
- Ministry of Education of China
- Mianyang 621010
- China
| | - Wei Zhang
- Key Laboratory of Solid Waste Treatment and Resource Recycle
- Ministry of Education of China
- Mianyang 621010
- China
| | - Xiaoqin Nie
- China Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Hongfu Wei
- Life Science and Engineering College
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Shiyong Sun
- Key Laboratory of Solid Waste Treatment and Resource Recycle
- Ministry of Education of China
- Mianyang 621010
- China
| | - Xiaomei Zhong
- Life Science and Engineering College
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Yuqi Liu
- Life Science and Engineering College
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Danni Wang
- Life Science and Engineering College
- Southwest University of Science and Technology
- Mianyang 621010
- China
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9
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Hosseini SH, Maleki A, Eshraghi HR, Hamidi M. Preparation and in vitro/pharmacokinetic/pharmacodynamic evaluation of a slow-release nano-liposomal form of prednisolone. Drug Deliv 2016; 23:3008-3016. [DOI: 10.3109/10717544.2016.1138341] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Seyed Hojjat Hosseini
- Department of Veterinary Basic Science, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran and
| | - Aziz Maleki
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Zanjan University of Medical Sciences, Zanjan, Iran
| | - Hamid Reza Eshraghi
- Department of Veterinary Basic Science, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran and
| | - Mehrdad Hamidi
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Zanjan University of Medical Sciences, Zanjan, Iran
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10
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Wang Q, Ma Q, Lian J, Zhong J, Wang F, Li J, He Y, Wang R. Bovine serum albumin modified ZnO to degrade organic dyes under ultraviolet light irradiation. NEW J CHEM 2016. [DOI: 10.1039/c5nj03061g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bovine serum albumin (BSA), a non-toxic natural polymer material, is used as a template agent to modify the as-prepared photocatalyst ZnO, changing the ZnO nanorod into a nanosheet.
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Affiliation(s)
- Qizhao Wang
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Lanzhou 730070
| | - Qiong Ma
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Lanzhou 730070
| | - Juhong Lian
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Lanzhou 730070
| | - Junbo Zhong
- Key Laboratory of Green Catalysis of Sichuan Institutes of High Education Institutes of Sichuan
- College of Chemistry and Pharmaceutical Engineering
- Sichuan University of Science and Engineering
- Zigong
- China
| | - Fangping Wang
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Lanzhou 730070
| | - Jianzhang Li
- Key Laboratory of Green Catalysis of Sichuan Institutes of High Education Institutes of Sichuan
- College of Chemistry and Pharmaceutical Engineering
- Sichuan University of Science and Engineering
- Zigong
- China
| | - Yufeng He
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Lanzhou 730070
| | - Rongmin Wang
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Lanzhou 730070
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11
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Punith R, Seetharamappa J. Reply to commentary on "spectral characterization of the binding and conformational changes of serum albumins upon interaction with an anticancer drug, anastrozole". SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 138:969-971. [PMID: 25534415 DOI: 10.1016/j.saa.2014.11.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Accepted: 11/01/2014] [Indexed: 06/04/2023]
Affiliation(s)
- Reeta Punith
- Department of Chemistry, Karnatak University, Dharwad 580 003, India
| | - J Seetharamappa
- Department of Chemistry, Karnatak University, Dharwad 580 003, India.
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12
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Yao X, Bunt C, Cornish J, Quek SY, Wen J. Preparation, Optimization and Characterization of Bovine Lactoferrin-loaded Liposomes and Solid Lipid Particles Modified by Hydrophilic Polymers Using Factorial Design. Chem Biol Drug Des 2014; 83:560-75. [DOI: 10.1111/cbdd.12269] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 11/17/2013] [Accepted: 11/29/2013] [Indexed: 12/01/2022]
Affiliation(s)
- Xudong Yao
- School of Pharmacy; Faculty of Medical and Health Science; The University of Auckland; Auckland 1142 New Zealand
| | - Craig Bunt
- Faculty of Agriculture and Life Science; Lincoln University; Lincoln 7647 New Zealand
| | - Jillian Cornish
- School of Medicine; Faculty of Medical and Health Science; The University of Auckland; Auckland 1142 New Zealand
| | - Siew-Young Quek
- School of Chemical Science; The University of Auckland; Auckland 1142 New Zealand
| | - Jingyuan Wen
- School of Pharmacy; Faculty of Medical and Health Science; The University of Auckland; Auckland 1142 New Zealand
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13
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Wang X, Luo Z, Xiao Z. Preparation, characterization, and thermal stability of β-cyclodextrin/soybean lecithin inclusion complex. Carbohydr Polym 2014; 101:1027-32. [PMID: 24299871 DOI: 10.1016/j.carbpol.2013.10.042] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2013] [Revised: 10/06/2013] [Accepted: 10/12/2013] [Indexed: 10/26/2022]
Abstract
β-Cyclodextrin (β-CD), which is widely used to increase the stability, solubility, and bioavailability of guests, can form host-guest inclusion complexes with a wide variety of organic molecules. In this study the β-CD/soybean lecithin inclusion complex was prepared. The effect of reaction parameters such as reaction temperature, reaction time and the molar ratio of β-CD/soybean lecithin on inclusion ratio were studied. The inclusion ratio of the product prepared under the optimal conditions of β-CD/soybean lecithin molar ratio 2:1, reaction temperature 60°C reaction time 2h was 40.2%. The results of UV-vis, DSC, XRD and FT-IR spectrum indicated the formation of inclusion complex. The thermal stability experiment indicated that the thermal stability of soybean lecithin in inclusion complex was significantly improved compared with free soybean lecithin.
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Affiliation(s)
- Xinge Wang
- Carbohydrate Lab, College of Light Industry and Food Science, South China University of Technology, Guangzhou 510640, China
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14
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Anirudhan TS, Rejeena SR, Tharun AR. Investigation of the Extraction of Hemoglobin by Adsorption onto Nanocellulose-Based Superabsorbent Composite Having Carboxylate Functional Groups from Aqueous Solutions: Kinetic, Equilibrium, and Thermodynamic Profiles. Ind Eng Chem Res 2013. [DOI: 10.1021/ie303365x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Abdul Rauf Tharun
- Department of Chemistry, University of Kerala, Karyavattom, Trivandrum
695 581,
India
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15
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Vahabzadeh S, Edgington J, Bose S. Tricalcium phosphate and tricalcium phosphate/polycaprolactone particulate composite for controlled release of protein. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:3576-82. [PMID: 23910252 DOI: 10.1016/j.msec.2013.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 03/21/2013] [Accepted: 04/01/2013] [Indexed: 02/01/2023]
Abstract
β-Tricalcium phosphate (β-TCP) with three different particle size ranges was used to study the effects of particle size and surface area on protein adsorption and release. Polycaprolactone (PCL) coating was applied on the particle systems to investigate its effect on particulate system properties from both structural and application aspects. The maximum loading of 27 mg/g was achieved for 100 nm particles. Bovine serum albumin (BSA) loading amount was controlled by varying the BSA loading solution concentration, as well as the sample powder's surface area. Increasing the surface area of the delivery powder significantly increased loading and release yield. Unlike the samples with low surface area, the lowest particle size samples showed sigmoidal release profile. This indicated that release was governed by different mechanisms for particles with different sizes. While the majority of samples showed no more than 50% release, the 550 nm particles demonstrated 100% release. PCL coating showed no significant ability to attenuate burst release in PBS. However, it led to a steadier release profile as compared to the bare TCP particles. FTIR analysis also proved that the secondary structure of BSA did not change significantly during the adsorption; however, minor denaturation was found during the release. The same results were found when PCL coating was applied on the TCP particles. We envision potential use of TCP and TCP+PCL systems in bone growth factor or orthopedic drug delivery applications in future bone tissue engineering application.
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Affiliation(s)
- Sahar Vahabzadeh
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164-2920, USA
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16
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Anirudhan T, Rejeena S. Adsorption and hydrolytic activity of trypsin on a carboxylate-functionalized cation exchanger prepared from nanocellulose. J Colloid Interface Sci 2012; 381:125-36. [DOI: 10.1016/j.jcis.2012.05.024] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Revised: 05/10/2012] [Accepted: 05/11/2012] [Indexed: 10/28/2022]
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17
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Tantisripreecha C, Jaturanpinyo M, Panyarachun B, Sarisuta N. Development of delayed-release proliposomes tablets for oral protein drug delivery. Drug Dev Ind Pharm 2011; 38:718-27. [DOI: 10.3109/03639045.2011.623168] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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18
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Petrone L, Easingwood R, Barker MF, McQuillan AJ. In situ ATR-IR spectroscopic and electron microscopic analyses of settlement secretions of Undaria pinnatifida kelp spores. J R Soc Interface 2011; 8:410-22. [PMID: 20685693 PMCID: PMC3030821 DOI: 10.1098/rsif.2010.0316] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Accepted: 07/13/2010] [Indexed: 11/12/2022] Open
Abstract
Knowledge about the settlement of marine organisms on substrates is important for the development of environmentally benign new methods for control of marine biofouling. The adhesion to substrates by spores of Undaria pinnatifida, a kelp species that is invasive to several countries, was studied by scanning electron and transmission electron microscopies (SEM/TEM) as well as by in situ attenuated total reflection infrared (ATR-IR) spectroscopy. The IR spectra showed that adhesive secretion began approximately 15 min after initial settlement and that the adhesive bulk material contained protein and anionic polysaccharides. Energy dispersive X-ray microanalysis of the adhesive identified sulphur and phosphorus as well as calcium and magnesium ions, which facilitate the gelation of the anionic polysaccharides in the sea water. The adhesive may be secreted from Golgi bodies in the spore, which were imaged by TEM of spore thin sections. Additionally, an in situ settlement study on TiO(2) particle film by ATR-IR spectroscopy revealed the presence of phosphorylated moieties directly binding the substrate. The presence of anionic groups dominating the adhesive suggests that inhibition of spore adhesion will be favoured by negatively charged surfaces.
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Affiliation(s)
- L. Petrone
- Department of Chemistry, University of Otago, PO Box 56, Dunedin, New Zealand
| | - R. Easingwood
- Otago Centre for Electron Microscopy, University of Otago, PO Box 56, Dunedin, New Zealand
| | - M. F. Barker
- Department of Marine Science, University of Otago, PO Box 56, Dunedin, New Zealand
| | - A. J. McQuillan
- Department of Chemistry, University of Otago, PO Box 56, Dunedin, New Zealand
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19
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Anirudhan TS, Senan P. Adsorptive potential of sulfonated poly(glycidylmethacrylate)-grafted cellulose for separation of lysozyme from aqueous phase: Mass transfer analysis, kinetic and equilibrium profiles. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2010.12.041] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Tian J, Zhao Y, Liu X, Zhao S. A steady-state and time-resolved fluorescence, circular dichroism study on the binding of myricetin to bovine serum albumin. LUMINESCENCE 2010; 24:386-93. [PMID: 19480002 DOI: 10.1002/bio.1124] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The binding mechanism of myricetin (Myr) to bovine serum albumin was investigated by using steady-state and time-resolved fluorescence and circular dichroism. The results of the steady-state fluorescence quenching experiment indicate that it is a static quenching process (C(Myr)/C(BSA) < or = 3) at low quencher concentration and the binding site is located near the Trp212 residue. The association constants at the different temperatures were calculated. From the thermodynamic parameters, enthalpy change (DeltaH(0)), Gibbs free energy change (DeltaG(0)) and entropy change (DeltaS(0)) obtained in the experiment, it was found that hydrophobic and electrostatic interactions play important roles in binding Myr to BSA. According to the Föster energy transfer theory, the separation distance, r, the energy transfer efficiency, E, and Föster radius, R(0), were calculated. The results obtained from the above experiments indicate that Myr can be tightly bound to BSA. Then, the effects of ionic strength, metal ion, pH and surfactants on the binding Myr and BSA were investigated, which also showed that electrostatic and hydrophobic interactions play a major role in the association process. On the other hand, the conformation and secondary structure of BSA were further studied through circular dichroism and fluorescence synchronous spectra. It was found that the conformation and secondary structure of BSA had also changed after interaction with Myr. The time-resolved fluorescence study showed that the short lifetime of BSA decreased after the addition of Myr, which implies that the buried Trp 212 is the main binding site.
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Affiliation(s)
- Jianniao Tian
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Guangxi Normal University), Ministry of Education of China, Guilin, 541004, People's Republic of China.
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Cagnasso M, Boero V, Franchini MA, Chorover J. ATR-FTIR studies of phospholipid vesicle interactions with alpha-FeOOH and alpha-Fe2O3 surfaces. Colloids Surf B Biointerfaces 2009; 76:456-67. [PMID: 20074916 DOI: 10.1016/j.colsurfb.2009.12.005] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2009] [Accepted: 12/04/2009] [Indexed: 11/28/2022]
Abstract
Prior infrared spectroscopic studies of extracellular polymeric substances (EPS) and live bacterial cells have indicated that organic phosphate groups mediate cell adhesion to iron oxides via inner-sphere P-OFe surface complexation. Since cell membrane phospholipids are a potential source of organic phosphate groups, we investigated the adhesion of phospholipidic vesicles to the surfaces of the iron (oxyhydr)oxides goethite (alpha-FeOOH) and hematite (alpha-Fe2O3) using attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy. l-alpha-phosphatidylcholine (PC), phosphatidylethanolamine (PE) and phosphatidic acid (PA) were used because they are vesicle forming phospholipids representative of prokaryotic and eukaryotic cell surface membranes. Phospholipid vesicles, formed in aqueous suspension, were characterized by transmission electron microscopy (TEM), multi-angle laser light scattering (MALS) and quasi-elastic light scattering (QELS). Their adhesion to goethite and hematite surfaces was studied with ATR-FTIR at pH 5. Results indicate that PC and PE adsorption is affected by electrostatic interaction and H-bonding (PE). Conversely, adsorption of PA involves phosphate inner-sphere complexes, for both goethite and hematite, via P-OFe bond formation. Biomolecule adsorption at the interface was observed to occur on the scale of minutes to hours. Exponential and linear increases in peak intensity were observed for goethite and hematite, respectively. Our ATR-FTIR results on the PA terminal phosphate are in good agreement with those on EPS reacted with goethite and on bacterial cell adhesion to hematite. These findings suggest that the plasma membrane, and the PA terminal phosphate in particular, may play a role in mediating the interaction between bacteria and iron oxide surfaces during initial stages of biofilm formation.
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Affiliation(s)
- Matteo Cagnasso
- Dipartimento di Valorizzazione e Protezione delle Risorse Agroforestali (Di.Va.P.R.A.), Università degli Studi di Torino, 44 via Leonardo da Vinci, Grugliasco (Torino), Italy I-10095
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Xue W, Bandyopadhyay A, Bose S. Polycaprolactone coated porous tricalcium phosphate scaffolds for controlled release of protein for tissue engineering. J Biomed Mater Res B Appl Biomater 2009; 91:831-838. [PMID: 19572301 PMCID: PMC3058418 DOI: 10.1002/jbm.b.31464] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Polycaprolactone (PCL) was coated on porous tricalcium phosphate (TCP) scaffolds to achieve controlled protein delivery. Porous TCP scaffolds were fabricated using reticulated polyurethane foam as sacrificial scaffold with a porosity of 70-90 vol %. PCL was coated on sintered porous TCP scaffolds by dipping-drying process. The compressive strength of TCP scaffolds increased significantly after PCL coating. The highest strength of 2.41 MPa at a porosity of 70% was obtained for the TCP scaffold coated with 5% PCL solution. Model protein bovine serum albumin (BSA) was encapsulated efficiently within the PCL coating. The amount of BSA encapsulation was controlled by varying proteins' composition in the PCL coating. The FTIR analysis confirmed that BSA retained its structural conformation and did not show significant denaturization during PCL coating. The release kinetics in phosphate buffer solution indicated that the protein release was controlled and sustained, and primarily dependant on protein concentration encapsulated in the PCL coating.
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Wharton DA, Petrone L, Duncan A, McQuillan AJ. A surface lipid may control the permeability slump associated with entry into anhydrobiosis in the plant parasitic nematode Ditylenchus dipsaci. ACTA ACUST UNITED AC 2008; 211:2901-8. [PMID: 18775927 DOI: 10.1242/jeb.020743] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The anhydrobiotic plant-parasitic nematode Ditylenchus dipsaci undergoes a decrease in permeability (the permeability slump) during the early stages of desiccation and this produces the slow rate of water loss necessary for its survival. There were no changes in annulation spacing, followed in individual nematodes by confocal microscopy, that would account for the permeability slump. Nile Red staining reveals that the surface of the nematode is coated with an extracuticular layer of lipid. This material can be seen in unstained desiccated nematodes where it forms an oil that adheres to the coverslip and to adjacent nematodes. The oily material leaves impressions on the coverslip (cuticle prints) after the nematode has detached upon rehydration. The presence of the surface lipid was confirmed using attenuated total reflection infrared spectroscopy. This material was shown to be a triglyceride and the proportion of fatty acids determined, using thin layer and gas chromatography. The production of the surface lipid material may be responsible for the permeability slump observed during the early phases of desiccation and its removal upon immersion in water may explain the paradox that cuticular permeability decreases during the permeability slump and yet desiccated nematodes are more permeable than are fully hydrated nematodes.
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Affiliation(s)
- D A Wharton
- Department of Zoology, University of Otago, PO Box 56, Dunedin, New Zealand.
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