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So̷rensen H, Krcic N, George I, Kocherbitov V. A Structural Study on Absorption of Lysozyme in Amorphous Starch Microspheres. Mol Pharm 2024; 21:3416-3424. [PMID: 38739906 PMCID: PMC11220755 DOI: 10.1021/acs.molpharmaceut.4c00135] [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: 02/07/2024] [Revised: 05/03/2024] [Accepted: 05/06/2024] [Indexed: 05/16/2024]
Abstract
The potential of using proteins as drugs is held back by their low stability in the human body and challenge of delivering them to the site of function. Extensive research is focused on drug delivery systems that can protect, carry, and release proteins in a controlled manner. Of high potential are cross-linked degradable starch microspheres (DSMs), as production of these is low-cost and environmentally friendly, and the products are degradable by the human body. Here, we demonstrate that DSMs can absorb the model protein lysozyme from an aqueous solution. At low amounts of lysozyme, its concentration in starch microspheres strongly exceeds the bulk concentration in water. However, at higher protein contents, the difference between concentrations in the two phases becomes small. This indicates that, at lower lysozyme contents, the absorption is driven by protein-starch interactions, which are counteracted by protein-protein electrostatic repulsion at high concentrations. By applying small-angle X-ray scattering (SAXS) to the DSM-lysozyme system, we show that lysozyme molecules are largely unaltered by the absorption in DSM. In the same process, the starch network is slightly perturbed, as demonstrated by a decrease in the characteristic chain to chain distance. The SAXS data modeling suggests an uneven distribution of the protein within the DSM particles, which can be dependent on the internal DSM structure and on the physical interactions between the components. The results presented here show that lysozyme can be incorporated into degradable starch microspheres without any dependence on electrostatic or specific interactions, suggesting that similar absorption would be possible for pharmaceutical proteins.
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Affiliation(s)
- Henrik
Vinther So̷rensen
- Department
of Biomedical Science, Faculty of Health and Society, Malmö University, Malmö 20506, Sweden
- Biofilms
Research Center for Biointerfaces, Malmö
University, Malmö 20506, Sweden
| | - Nedim Krcic
- Magle
Chemoswed AB, Agneslundsvägen
27, Malmö 21215, Sweden
| | - Ian George
- Magle
Chemoswed AB, Agneslundsvägen
27, Malmö 21215, Sweden
| | - Vitaly Kocherbitov
- Department
of Biomedical Science, Faculty of Health and Society, Malmö University, Malmö 20506, Sweden
- Biofilms
Research Center for Biointerfaces, Malmö
University, Malmö 20506, Sweden
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2
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Cretella M, Fazilati M, Krcic N, Argatov I, Kocherbitov V. Determination of Density of Starch Hydrogel Microspheres from Sedimentation Experiments Using Non-Stokes Drag Coefficient. Gels 2024; 10:277. [PMID: 38667696 PMCID: PMC11049465 DOI: 10.3390/gels10040277] [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: 03/27/2024] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Sedimentation is an important property of colloidal systems that should be considered when designing pharmaceutical formulations. In pharmaceutical applications, sedimentation is normally described using Stokes' law, which assumes laminar flow of fluid. In this work we studied swelling and hydration of spherical cross-linked amorphous starch microspheres in pure water, solutions of sodium chloride, and in pH-adjusted aqueous solutions. We demonstrated that Reynolds numbers obtained in these experiments correspond to the transition regime between the laminar flow and the turbulent flow and, hence, expressions based on the non-Stokes drag coefficient should be used for calculations of sedimentation velocity from known density or for assessment of density from observed sedimentation velocity. The density of starch microparticles hydrated in water was about 1050 kg/m3, while densities obtained from experiment with other liquids were dependent on the liquids' densities. The data indicate that the swelling of the cross-linked starch microparticles as characterized by their densities is not sensitive to pH and salt concentration in the studied range of these parameters.
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Affiliation(s)
- Margherita Cretella
- Department of Biomedical Science, Malmö University, 20506 Malmö, Sweden (V.K.)
- Biofilms Research Center for Biointerfaces, Malmö University, 20506 Malmö, Sweden
- Erasmus Student, University of Salerno, 84084 Fisciano, Italy
| | - Mina Fazilati
- Department of Biomedical Science, Malmö University, 20506 Malmö, Sweden (V.K.)
- Biofilms Research Center for Biointerfaces, Malmö University, 20506 Malmö, Sweden
| | | | - Ivan Argatov
- Institut für Mechanik, Technische Universität Berlin, 10623 Berlin, Germany
| | - Vitaly Kocherbitov
- Department of Biomedical Science, Malmö University, 20506 Malmö, Sweden (V.K.)
- Biofilms Research Center for Biointerfaces, Malmö University, 20506 Malmö, Sweden
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3
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Kocherbitov V, Music D, Veryazov V. Hydrogen bonding in glassy trehalose-water system: Insights from density functional theory and molecular dynamics simulations. J Chem Phys 2024; 160:084504. [PMID: 38411233 DOI: 10.1063/5.0194537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 01/30/2024] [Indexed: 02/28/2024] Open
Abstract
We report a detailed density functional theory and molecular dynamics study of hydrogen bonding between trehalose and water, with a special emphasis on interactions in the amorphous solid state. For comparison, water-water interactions in water dimers and tetramers are evaluated using quantum calculations. The results show that the hydrogen bonding energy is dependent not only on the geometry (bond length and angle) but also on the local environment of the hydrogen bond. This is seen in quantum calculations of complexes in vacuum as well as in amorphous solid states with periodic boundary conditions. The temperature-induced glass transition in the trehalose-water system was studied using molecular dynamics simulations with varying cooling and heating rates. The obtained parameters of the glass transition are in good agreement with the experiments. Moreover, the dehydration of trehalose in the glassy state was investigated through a gradual dehydration with multiple small steps under isothermal conditions. From these simulations, the values of water sorption energy at different temperatures were obtained. The partial molar enthalpy of mixing of water value of -18 kJ/mol found in calorimetric experiments was accurately reproduced in these simulations. These findings are discussed in light of the hydrogen bonding data in the system. We conclude that the observed exothermic effect is due to different responses of liquid and glassy matrices to perturbations associated with the addition or removal of water molecules.
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Affiliation(s)
- Vitaly Kocherbitov
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06 Malmö, Sweden
- Biofilms Research Center for Biointerfaces, Malmö University, SE-205 06 Malmö, Sweden
| | - Denis Music
- Biofilms Research Center for Biointerfaces, Malmö University, SE-205 06 Malmö, Sweden
- Department of Materials Science and Applied Mathematics, Faculty of Technology and Society, Malmö University, SE-205 06 Malmö, Sweden
| | - Valera Veryazov
- Computational Chemistry, Kemicentrum, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
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4
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Ren Z, Wang Y, Wu H, Cong H, Yu B, Shen Y. Preparation and application of hemostatic microspheres containing biological macromolecules and others. Int J Biol Macromol 2024; 257:128299. [PMID: 38008144 DOI: 10.1016/j.ijbiomac.2023.128299] [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: 09/02/2023] [Revised: 11/18/2023] [Accepted: 11/18/2023] [Indexed: 11/28/2023]
Abstract
Bleeding from uncontrollable wounds can be fatal, and the body's clotting mechanisms are unable to control bleeding in a timely and effective manner in emergencies such as battlefields and traffic accidents. For irregular and inaccessible wounds, hemostatic materials are needed to intervene to stop bleeding. Hemostatic microspheres are promising for hemostasis, as their unique structural features can promote coagulation. There is a wide choice of materials for the preparation of microspheres, and the modification of natural macromolecular materials such as chitosan to enhance the hemostatic properties and make up for the deficiencies of synthetic macromolecular materials makes the hemostatic microspheres multifunctional and expands the application fields of hemostatic microspheres. Here, we focus on the hemostatic mechanism of different materials and the preparation methods of microspheres, and introduce the modification methods, related properties and applications (in cancer therapy) for the structural characteristics of hemostatic microspheres. Finally, we discuss the future trends of hemostatic microspheres and research opportunities for developing the next generation of hemostatic microsphere materials.
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Affiliation(s)
- Zekai Ren
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
| | - Yumei Wang
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
| | - Han Wu
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
| | - Hailin Cong
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China; School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, China.
| | - Bing Yu
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China; State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China.
| | - Youqing Shen
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China; Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Center for Bionanoengineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
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5
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Argatov I, Krcic N, Kocherbitov V. Sedimentation of a starch microsphere: What is usually missed and why? Heliyon 2023; 9:e20257. [PMID: 37810817 PMCID: PMC10550625 DOI: 10.1016/j.heliyon.2023.e20257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/08/2023] [Accepted: 09/17/2023] [Indexed: 10/10/2023] Open
Abstract
Gravimetric sedimentation is known as a relatively simple method of determining density of spherical particles. When the method is applied to water-swollen starch microparticles of about submillimeter sizes, it becomes evident that a careful selection of the experimental setup parameters is needed for producing accurate testing results. The main reason for this is that the mean particle density is very close to the density of water, and therefore, a dynamic model accounting for the so-called Bassett history force should be employed for describing the unsteady accelerating particle settling. A main novelty of this study consists in deriving a priori estimates for the settling time and distance.
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Affiliation(s)
- Ivan Argatov
- Institut für Mechanik, Technische Universität Berlin, 10623 Berlin, Germany
| | - Nedim Krcic
- Magle Chemoswed, Agneslundsvägen 27, SE-212 15, Malmö, Sweden
| | - Vitaly Kocherbitov
- Faculty of Health and Society, Malmö University, SE-205 06 Malmö, Sweden
- Biofilms – Research Center for Biointerfaces, Malmö University, SE-205 06 Malmö, Sweden
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6
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Alizadeh MH, Pooresmaeil M, Namazi H. Carboxymethyl cellulose@multi wall carbon nanotubes functionalized with Ugi reaction as a new curcumin carrier. Int J Biol Macromol 2023; 234:123778. [PMID: 36822289 DOI: 10.1016/j.ijbiomac.2023.123778] [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: 10/06/2022] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 02/23/2023]
Abstract
In recent years, the fabrication of new drug delivery systems (DDSs) based on functionalization by multi-component reactions (MCRs) has received special attention. In this regard, to obtain a new oral administration system for colon-specific cancer treatment, the CMC@MWCNTs@FCA carrier was designed and prepared from the functionalization of the CMC@MWCNTs as a biocompatible raw material with carboxamide group by the Ugi reaction. FT-IR analysis confirmed the successful synthesis of the product through the change in the functional groups of reagents. Additionally, the crystalline structure and porosity of the samples were studied by XRD and BET techniques. After a detailed characterization, the curcumin (CUR) was loaded on CMC@MWCNTs and CMC@MWCNTs@FCA, respectively, about 29 % and 38 %. In vitro drug release behavior studies for CUR-loaded CMC@MWCNTs@FCA showed the controlled release for it, so 11.6 % and 76.5 % of CUR, respectively were released at pH 1.2 and pH 7.4. Toxicological analysis displayed the IC50 of CMC@MWCNTs@FCA@CUR is 752 μg/mL. In conclusion, the obtained findings display that the fabricated system can be proposed as a biocompatible carrier for specific colon cancer treatment.
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Affiliation(s)
- Mohammad Hossein Alizadeh
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Malihe Pooresmaeil
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Hassan Namazi
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran; Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Science, Tabriz, Iran.
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Hassanpouraghdam Y, Pooresmaeil M, Namazi H. In-vitro evaluation of the 5-fluorouracil loaded GQDs@Bio-MOF capped with starch biopolymer for improved colon-specific delivery. Int J Biol Macromol 2022; 221:256-267. [PMID: 36067851 DOI: 10.1016/j.ijbiomac.2022.08.167] [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: 04/26/2022] [Revised: 08/10/2022] [Accepted: 08/24/2022] [Indexed: 11/19/2022]
Abstract
Herein, for the first time, the photoluminescent graphene quantum dots@Bio-metal organic framework (GQDs@Bio-MOF) nanohybrid was prepared. BET analysis obtained the average pore diameter of GQDs@Bio-MOF about 11.97 nm. The existence of nanoscale porosity in GQDs@Bio-MOF displays its suitability for 5-Fu loading owing to the smaller size of 5-Fu. 5-Fu entrapment efficiency and loading capacity were found to be ~42.04 % and ~4.20 %, respectively (5-Fu@GQDs@Bio-MOF). The 5-Fu@GQDs@Bio-MOF was capped with starch biopolymer (St@5-Fu@GQDs@Bio-MOF), fabricated sample displayed 4.67 for pHPZC. SEM analysis displayed that the St@5-Fu@GQDs@Bio-MOF microspheres have a spherical shape with a diameter of ~2 μm. The in vitro drug release assay displayed better release behavior for St@5-Fu@GQDs@Bio-MOF than 5-Fu@GQDs@Bio-MOF, releasing about 62.3 % of the entrapped 5-Fu within 96 h of incubation. The 5-Fu release showed the best fitting with the Higuchi model with R2 0.9884. The in vitro cytotoxicity screening outcomes displayed that the St@GQDs@Bio-MOF is a promising biocompatible carrier, with cell viability of higher than 84 %. Accumulation of the results revealed that the St@5-Fu@GQDs@Bio-MOF is a new system with advantages of sustained drug release and biocompatibility that are the main criteria for each newly designed anticancer drug carrier.
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Affiliation(s)
- Yashar Hassanpouraghdam
- Research Laboratory of Dendrimers and Nano-Biopolymers, Faculty of Chemistry, University of Tabriz, P.O. Box 51666, Tabriz, Iran
| | - Malihe Pooresmaeil
- Research Laboratory of Dendrimers and Nano-Biopolymers, Faculty of Chemistry, University of Tabriz, P.O. Box 51666, Tabriz, Iran
| | - Hassan Namazi
- Research Laboratory of Dendrimers and Nano-Biopolymers, Faculty of Chemistry, University of Tabriz, P.O. Box 51666, Tabriz, Iran; Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Science, Tabriz, Iran.
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8
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Digaitis R, Falkman P, Oltner V, Briggner LE, Kocherbitov V. Hydration and dehydration induced changes in porosity of starch microspheres. Carbohydr Polym 2022; 291:119542. [DOI: 10.1016/j.carbpol.2022.119542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/12/2022] [Accepted: 04/24/2022] [Indexed: 11/25/2022]
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9
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Ranjbar E, Namazi H, Pooresmaeil M. Carboxymethyl starch encapsulated 5-FU and DOX co-loaded layered double hydroxide for evaluation of its in vitro performance as a drug delivery agent. Int J Biol Macromol 2022; 201:193-202. [PMID: 35007629 DOI: 10.1016/j.ijbiomac.2021.12.181] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 12/05/2021] [Accepted: 12/28/2021] [Indexed: 11/19/2022]
Abstract
Achieving a new oral drug delivery system with controlled drug release behavior is valuable in cancer therapy. Therefore, for the first time, doxorubicin (DOX) and 5-fluorouracil (5-Fu) were simultaneously co-loaded on the as-synthesized layered double hydroxides LDH(MgAl). The resulted system was encapsulated with carboxymethyl starch to improve its efficiency for colon cancer therapy. Several characterization techniques were used to evaluate the successful synthesis of the CMS@LDH(MgAl)@DOX,5-Fu microspheres. The scanning electron microscopy result showed that the size of prepared microspheres is about 72 μm. Additionally, the presence of one broad peak at 2θ ~ 20 of the X-ray diffraction spectrum approved its amorph nature. The drug release study showed a controlled release profile with ~22% of DOX and 29% of 5-Fu. In addition, the cell viability test outcome confirmed the sustained drug release pattern from CMS@LDH(MgAl)@DOX,5-Fu against the colon cancer cell line. The results suggest that the prepared microspheres are capable to operate as an acceptable formulation for oral co-drug delivery.
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Affiliation(s)
- Elaheh Ranjbar
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Hassan Namazi
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran; Research Center for Pharmaceutical Nanotechnology (RCPN), Tabriz University of Medical Science, Tabriz, Iran.
| | - Malihe Pooresmaeil
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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10
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Pooresmaeil M, Namazi H. Folic acid-modified photoluminescent dialdehyde carboxymethyl cellulose crosslinked bionanogels for pH-controlled and tumor-targeted co-drug delivery. Int J Biol Macromol 2022; 200:247-262. [PMID: 35007630 DOI: 10.1016/j.ijbiomac.2022.01.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 12/21/2021] [Accepted: 01/01/2022] [Indexed: 01/21/2023]
Abstract
This work aimed to fabricate a new photoluminescent bionanogel with both targeted anticancer drug delivery and bioimaging potentials. Briefly, at first photoluminescent carbon dots (CDs) were synthesized from the low-cost and more available black pepper with traditional medicinal properties. The as-synthesized dialdehyde carboxymethyl cellulose (DCMC) was used as a safe crosslinker for gelatin crosslinking in the presence of CDs (CDs/DCMC-Gel). Eventually, the residual amine functional groups of gelatin were used for the conjugation of CDs/DCMC-Gel with folic acid (FA) ((CDs/DCMC-Gel)-FA bionanogels). All employed physicochemical characterization methods approved the (CDs/DCMC-Gel)-FA bionanogels fabrication route. SEM analysis specified the spherical morphology with a diameter of ~70-90 nm for it. Curcumin (CUR) and doxorubicin (DOX) respectively were loaded with drug entrapment efficiency of about 44.0% and 41.4%. The release rate for both drugs in acidic conditions was higher than in physiological conditions. In vitro antitumor experiments; MTT, DAPI staining, cellular uptake, and cell cycle tests showed the superior anticancer effect of the CUR@DOX@(CDs/DCMC-Gel)-FA in comparison with free CUR@DOX. Moreover, the (CDs/DCMC-Gel)-FA acted as a hopeful bio-imaging tool. Taken together, the designed (CDs/DCMC-Gel)-FA could be proposed as a promising nanosystem for efficient chemotherapy.
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Affiliation(s)
- Malihe Pooresmaeil
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Hassan Namazi
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.; Research Center for Pharmaceutical Nanotechnology (RCPN), Tabriz University of Medical Science, Tabriz, Iran.
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11
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LUO Y, NI F, GUO M, LIU J, CHEN H, ZHANG S, LI Y, CHEN G, WANG G. Quinoa starch microspheres for drug delivery: preparation and their characteristics. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.126421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yang LUO
- Jilin Agricultural University, China
| | | | | | - Juan LIU
- Sericultural Research Institute of Jilin Province, China
| | - Huan CHEN
- Jilin Agricultural University, China
| | | | - Yanli LI
- Jilin Agricultural University, China
| | - Guang CHEN
- Jilin Agricultural University, China; Education Ministry of China, China
| | - Gang WANG
- Jilin Agricultural University, China; Education Ministry of China, China
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12
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Apostolidis E, Kioupis D, Kakali G, Stoforos NG, Mandala I. Effect of starch concentration and resistant starch filler addition on the physical properties of starch hydrogels. J Food Sci 2021; 86:5340-5352. [PMID: 34755908 DOI: 10.1111/1750-3841.15954] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 09/17/2021] [Accepted: 10/01/2021] [Indexed: 12/28/2022]
Abstract
Corn starch-based hydrogels are safe and biodegradable polymers with a wide array of applications in food science. The aim of this study was to investigate the effects of starch and natural filler resistant starch type 2 (RS2) particles concentration on the textural properties of corn starch hydrogels. Native starch (NS) hydrogels of 8%, 10%, 12%, and 15% w/v were prepared; in each of these dispersions, part of the NS was substituted with RS2 to a concentration of 2% or 10%. NS hydrogels with the highest concentrations had the maximum hardness, cohesiveness, and gumminess values, whereas the addition of RS2 particles did not affect gel textural properties. Native and substituted RS2 hydrogels showed close similarities in their rheological and textural characteristics. Water-holding capacity greatly decreased with increasing starch concentration, suggesting that the hydrogels with the highest NS concentration had the densest network as depicted by SEM micrographs. Subsequently, hardness, gumminess, and consistency coefficient were linearly correlated to starch concentration and storage time. Fluid release was exponentially dependent on starch concentration. The degree of crystallinity by X-ray diffraction (XRD) indicated that by increasing starch concentration and substitution level, crystallinity increased. Consequently, NS concentration determined the textural properties of corn starch hydrogels. On the other hand, RS2 substitutions did not affect any of these parameters, indicating their potential role as inactive fillers with a beneficial effect on the maintenance of normal blood glucose levels. Therefore, the consistency of a food gel can be optimized by changing the ratio of inactive filler to starch gel matrix.
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Affiliation(s)
- Eftychios Apostolidis
- Department of Food Science & Human Nutrition, Laboratory of Food Process Engineering, Agricultural University of Athens, Athens, Greece
| | - Dimitris Kioupis
- School of Chemical Engineering, Laboratory of Inorganic and Analytical Chemistry, National Technical University of Athens, Athens, Greece
| | - Glikeria Kakali
- School of Chemical Engineering, Laboratory of Inorganic and Analytical Chemistry, National Technical University of Athens, Athens, Greece
| | - Nikolaos G Stoforos
- Department of Food Science & Human Nutrition, Laboratory of Food Process Engineering, Agricultural University of Athens, Athens, Greece
| | - Ioanna Mandala
- Department of Food Science & Human Nutrition, Laboratory of Food Process Engineering, Agricultural University of Athens, Athens, Greece
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13
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Preparation, characterization and filtration control properties of crosslinked starch nanospheres in water-based drilling fluids. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115221] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Hu Y, Qin Y, Qiu C, Xu X, Jin Z, Wang J. Ultrasound-assisted self-assembly of β-cyclodextrin/debranched starch nanoparticles as promising carriers of tangeretin. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.106021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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15
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Alzate P, Gerschenson L, Flores S. Ultrasound application for production of nano-structured particles from esterified starches to retain potassium sorbate. Carbohydr Polym 2020; 247:116759. [PMID: 32829872 DOI: 10.1016/j.carbpol.2020.116759] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 06/29/2020] [Accepted: 07/10/2020] [Indexed: 12/19/2022]
Abstract
Ultrasound technique was successfully used to obtain nanostructured particles from native and esterified starch, able to support the antimicrobial potassium sorbate (PS). The starch used (native, acetate or oleate) affected the nanoparticles morphology and size: globular or plate like shapes were observed for esterified and native starch respectively, while the hydrodynamic diameters were between 28 and 236 nm, with a trend towards smaller sizes for modified starches. The PS retention capacity ranged from 41.5 -90 mg/g, showing acetylated particles the highest value. The particles were amorphous and had a low average molecular weight of 1.9-6.7 × 105 Da. Water retention capacity and solubility (S) were higher for modified starch particles. PS addition had minor effect, increasing S and reducing the apparent amylose content, with respect to particles without sorbate. These results demonstrated that starch modification combined with ultrasound were appropriate strategies to obtain novel and appropriate matrices to retain PS.
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Affiliation(s)
- Paola Alzate
- Universidad de Buenos Aires (UBA), Facultad de Ciencias Exactas y Naturales (FCEN), Departamento de Industrias, Intendente Güiraldes 2160, (1428), Ciudad Autónoma de Buenos Aires, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Tecnología de Alimentos y Procesos Químicos (ITAPROQ). Buenos Aires, Argentina
| | - Lía Gerschenson
- Universidad de Buenos Aires (UBA), Facultad de Ciencias Exactas y Naturales (FCEN), Departamento de Industrias, Intendente Güiraldes 2160, (1428), Ciudad Autónoma de Buenos Aires, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Tecnología de Alimentos y Procesos Químicos (ITAPROQ). Buenos Aires, Argentina
| | - Silvia Flores
- Universidad de Buenos Aires (UBA), Facultad de Ciencias Exactas y Naturales (FCEN), Departamento de Industrias, Intendente Güiraldes 2160, (1428), Ciudad Autónoma de Buenos Aires, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Tecnología de Alimentos y Procesos Químicos (ITAPROQ). Buenos Aires, Argentina.
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Gong HR, Ren FD, Zhao LX, Cao DL, Wang JL. Hydration and swelling: a theoretical investigation on the cooperativity effect of H-bonding interactions between p-hydroxy hydroxymethyl calix[4]/[5]arene and H 2O by many-body interaction and density functional reactivity theory. J Mol Model 2020; 26:190. [PMID: 32613574 DOI: 10.1007/s00894-020-04442-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/10/2020] [Indexed: 11/28/2022]
Abstract
In order to explore the nature of the hydration and swelling of superabsorbent resin, a theoretical investigation into the cooperativity effect of the H-bonding interactions in the hydrates of four model compounds that can be regarded as the units of hydroquinone formaldehyde resin (HFR) (i.e., O-hydroxymethyl-1,4-dihydroxybenzene, methylene di-O-hydroxymethyl-1,4-dihydroxybenzene, p-hydroxy hydroxymethyl calix[4]arene and p-hydroxy hydroxymethyl calix[5]arene) was carried out by many-body interaction and density functional reactivity theory. The HFR···H2O···H2O complexes, in which the H2O···H2O moieties are bound with both the hydroxyl groups of HFR, are the most stable. For the HFR(H2O)n clusters, the interaction energy per building block is increased as the number of the size n increases, indicating the cooperativity effect. Therefore, a deduction is given that the cooperativity effects of the H-bonding interactions play an important role in the process of the hydration and swelling of HFR, and the swelling behavior is mainly attributed to the cooperativity effects which arised from the interactions between the H2O molecules. The origin of the cooperativity effect was examined employing several information-theoretic quantities in the density functional reactivity theory. The degree of swelling of HFR was quantitated using a measure of volume. Graphical abstract.
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Affiliation(s)
- Hui-Ru Gong
- School of Chemical Engineering and Technology, North University of China, Taiyuan, 030051, China
| | - Fu-de Ren
- School of Chemical Engineering and Technology, North University of China, Taiyuan, 030051, China.
| | - Lin-Xiu Zhao
- School of Chemical Engineering and Technology, North University of China, Taiyuan, 030051, China
| | - Duan-Lin Cao
- School of Chemical Engineering and Technology, North University of China, Taiyuan, 030051, China
| | - Jian-Long Wang
- School of Chemical Engineering and Technology, North University of China, Taiyuan, 030051, China
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Xi G, Liu W, Chen M, Li Q, Hao X, Wang M, Yang X, Feng Y, He H, Shi C, Li W. Polysaccharide-Based Lotus Seedpod Surface-Like Porous Microsphere with Precise and Controllable Micromorphology for Ultrarapid Hemostasis. ACS APPLIED MATERIALS & INTERFACES 2019; 11:46558-46571. [PMID: 31769962 DOI: 10.1021/acsami.9b17543] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Rapid water absorption rate has become a bottleneck that limits ultrarapid hemostatic performance of hemostatic microspheres. Herein, we reported a "lotus seedpod surface-like" polysaccharide hemostatic microsphere (PHM) with "macropits on surface" morphology and "micropores in macropits" structure. Unique macropits on surface can promote the water absorption rate because they are advantageous to quickly guide blood into the micropores. Special micropores are internally connected with each other, which endows PHM4 with high water absorption ratio. During the process of blood entering the micropores from micropits, the pore size decreases gradually. In this way, blood clotting factors could be rapidly concentrated. PHM4 showed the highest water absorption rate (40.7 mL/s/cm2) and rapid hemostatic property in vivo (hemostatic time shortened from 210 to 45 s). Lotus seedpod surface-like PHMs are believed to have further clinical application as an effective hemostasis.
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Affiliation(s)
- Guanghui Xi
- School of Ophthalmology & Optometry, Eye Hospital, School of Biomedical Engineering , Wenzhou Medical University , Wenzhou , Zhejiang 325027 , China
- Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute , University of Chinese Academy of Sciences , Wenzhou , Zhejiang 325011 , China
| | - Wen Liu
- School of Ophthalmology & Optometry, Eye Hospital, School of Biomedical Engineering , Wenzhou Medical University , Wenzhou , Zhejiang 325027 , China
- Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute , University of Chinese Academy of Sciences , Wenzhou , Zhejiang 325011 , China
| | - Miao Chen
- School of Ophthalmology & Optometry, Eye Hospital, School of Biomedical Engineering , Wenzhou Medical University , Wenzhou , Zhejiang 325027 , China
| | - Qian Li
- Department of Biomedical Sciences , Texas A&M University College of Dentistry , Dallas , Texas 75246 , United States
| | - Xiao Hao
- Cardiovascular Division 1 , Hebei General Hospital , Shijiazhuang , Hebei 050051 , China
| | - Mingshan Wang
- The First Affiliated Hospital of Wenzhou Medical University , Wenzhou Medical University , Wenzhou , Zhejiang 325000 , China
| | - Xiao Yang
- School of Chemical Engineering and Technology , Tianjin University , Tianjin 300350 , China
| | - Yakai Feng
- School of Chemical Engineering and Technology , Tianjin University , Tianjin 300350 , China
| | - Hongchao He
- Department of Urology , Shanghai Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine , Shanghai 200025 , China
| | - Changcan Shi
- School of Ophthalmology & Optometry, Eye Hospital, School of Biomedical Engineering , Wenzhou Medical University , Wenzhou , Zhejiang 325027 , China
- Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute , University of Chinese Academy of Sciences , Wenzhou , Zhejiang 325011 , China
| | - Wenzhong Li
- Institute of Chemistry and Biochemistry , Free University of Berlin , Takustrasse 3 , Berlin 14195 , Germany
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18
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Effect of Amorphization Methods on the Properties and Structures of Potato Starch‐Monoglyceride Complex. STARCH-STARKE 2019. [DOI: 10.1002/star.201900138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Yang J, Wang M, Zhang Y, Jia X, Chen Y, Liu T, Zhang Z, Yang H, Wu Q, Xiao H. Rapid Preparation of Oxidized Starch with High Carbonyl Contents Using NaBrO as Oxidizer. STARCH-STARKE 2019. [DOI: 10.1002/star.201900054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jinhui Yang
- School of Materials Science and EngineeringShijiazhuang Tiedao UniversityShijiazhuangHebei Province050043China
| | - Man Wang
- School of Materials Science and EngineeringShijiazhuang Tiedao UniversityShijiazhuangHebei Province050043China
| | - Yinan Zhang
- School of Materials Science and EngineeringShijiazhuang Tiedao UniversityShijiazhuangHebei Province050043China
| | - Xiangxiang Jia
- School of Materials Science and EngineeringShijiazhuang Tiedao UniversityShijiazhuangHebei Province050043China
| | - Yanxue Chen
- School of Materials Science and EngineeringShijiazhuang Tiedao UniversityShijiazhuangHebei Province050043China
| | - Tai Liu
- School of Materials Science and EngineeringShijiazhuang Tiedao UniversityShijiazhuangHebei Province050043China
| | - Ziyi Zhang
- School of Materials Science and EngineeringShijiazhuang Tiedao UniversityShijiazhuangHebei Province050043China
| | - Hongzhao Yang
- School of Materials Science and EngineeringShijiazhuang Tiedao UniversityShijiazhuangHebei Province050043China
| | - Qi Wu
- School of Materials Science and EngineeringShijiazhuang Tiedao UniversityShijiazhuangHebei Province050043China
| | - Huining Xiao
- School of Materials Science and EngineeringShijiazhuang Tiedao UniversityShijiazhuangHebei Province050043China
- Department of Chemical EngineeringUniversity of New BrunswickFrederictonNew BrunswickE3B5A3Canada
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Xing L, Zhou TJ, Fan YT, He YJ, Pang T, Cho KH, Lu JJ, Jiang HL, Cho CS. Efficient Mucosal Immunization by Mucoadhesive and pH-Sensitive Polymeric Vaccine Delivery System. Macromol Res 2019. [DOI: 10.1007/s13233-019-7042-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Omedi JO, Huang W, Zhang B, Li Z, Zheng J. Advances in present-day frozen dough technology and its improver and novel biotech ingredients development trends-A review. Cereal Chem 2019. [DOI: 10.1002/cche.10122] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Jacob O. Omedi
- State Key Laboratory of Food Science and Technology, Laboratory of Baking and Fermentation Science, Cereal/Sourdough and Ingredient Functionality Research, School of Food Science and Technology; Jiangnan University; Wuxi China
| | - Weining Huang
- State Key Laboratory of Food Science and Technology, Laboratory of Baking and Fermentation Science, Cereal/Sourdough and Ingredient Functionality Research, School of Food Science and Technology; Jiangnan University; Wuxi China
| | - Binle Zhang
- State Key Laboratory of Food Science and Technology, Laboratory of Baking and Fermentation Science, Cereal/Sourdough and Ingredient Functionality Research, School of Food Science and Technology; Jiangnan University; Wuxi China
- MagiBake GS International; Jinjiang; Quanzhou China
| | - Zhibin Li
- MagiBake GS International; Jinjiang; Quanzhou China
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Dehabadi L, Karoyo AH, Wilson LD. Spectroscopic and Thermodynamic Study of Biopolymer Adsorption Phenomena in Heterogeneous Solid-Liquid Systems. ACS OMEGA 2018; 3:15370-15379. [PMID: 31458195 PMCID: PMC6643837 DOI: 10.1021/acsomega.8b01663] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Accepted: 10/29/2018] [Indexed: 05/24/2023]
Abstract
Molecular selective adsorption processes at the solid surface of biopolymers in mixed solvent systems are poorly understood due to manifold interactions. However, the ability to achieve adsorptive fractionation of liquid mixtures is posited to relate to the role of specific solid-liquid interactions at the adsorbent interface. The hydration of solid biopolymers (amylose, amylopectin, cellulose) in binary aqueous systems is partly governed by the relative solvent binding affinities with the biopolymer surface sites, in accordance with the role of textural and surface chemical properties. While molecular models that account for the surface area and solvent effects provide reliable estimates of hydration energy and binding affinity parameters, spectroscopic and thermal methods offer a facile alternative experimental approach to account for detailed aspects of solvation phenomena at biopolymer interfaces that involve solid-liquid adsorption. In this report, thermal and spectroscopic methods were used to understand the interaction of starch- and cellulose-based materials in water-ethanol (W-E) binary mixtures. Batch adsorption studies in binary W-E mixtures reveal the selective solvent uptake properties by the biomaterials, in agreement with their solvent swelling in pure water or ethanol. The nature, stability of the bound water, and the thermodynamic properties of the biopolymers in variable hydration states were probed via differential scanning calorimetry and Raman spectroscopy. The trends in biopolymer-solvent interactions are corroborated by dye adsorption and scanning electron microscopy, indicating that biopolymer adsorption properties in W-E mixtures strongly depend on the surface area, pore structure, and accessibility of the polar surface groups of the biopolymer systems, in agreement with the solvent-selective uptake results reported herein.
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Mojumdar EH, Pham QD, Topgaard D, Sparr E. Skin hydration: interplay between molecular dynamics, structure and water uptake in the stratum corneum. Sci Rep 2017; 7:15712. [PMID: 29146971 PMCID: PMC5691061 DOI: 10.1038/s41598-017-15921-5] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 10/27/2017] [Indexed: 12/24/2022] Open
Abstract
Hydration is a key aspect of the skin that influences its physical and mechanical properties. Here, we investigate the interplay between molecular and macroscopic properties of the outer skin layer - the stratum corneum (SC) and how this varies with hydration. It is shown that hydration leads to changes in the molecular arrangement of the peptides in the keratin filaments as well as dynamics of C-H bond reorientation of amino acids in the protruding terminals of keratin protein within the SC. The changes in molecular structure and dynamics occur at a threshold hydration corresponding to ca. 85% relative humidity (RH). The abrupt changes in SC molecular properties coincide with changes in SC macroscopic swelling properties as well as mechanical properties in the SC. The flexible terminals at the solid keratin filaments can be compared to flexible polymer brushes in colloidal systems, creating long-range repulsion and extensive swelling in water. We further show that the addition of urea to the SC at reduced RH leads to similar molecular and macroscopic responses as the increase in RH for SC without urea. The findings provide new molecular insights to deepen the understanding of how intermediate filament organization responds to changes in the surrounding environment.
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Affiliation(s)
- Enamul Haque Mojumdar
- Division of Physical Chemistry, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-22100, Lund, Sweden.
| | - Quoc Dat Pham
- Division of Physical Chemistry, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-22100, Lund, Sweden
| | - Daniel Topgaard
- Division of Physical Chemistry, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-22100, Lund, Sweden
| | - Emma Sparr
- Division of Physical Chemistry, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-22100, Lund, Sweden.
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Tamaddon F, KazemiVarnamkhasti M. Scalable preparation, characterization, and application of alkali-treated starch as a new organic base catalyst. Carbohydr Res 2017; 437:9-15. [PMID: 27883908 DOI: 10.1016/j.carres.2016.10.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 10/27/2016] [Accepted: 10/28/2016] [Indexed: 11/27/2022]
Abstract
Preparation, characterization, and application of alkali starch (AS) given by dry co-grinding of starch and alkali is described in this work. Grinding using a mortar (agate) and pestle or, more conveniently, a ball mill has been found to be satisfactory for the preparation of the AS. The AS products were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) and x-ray fluorescence (XRF) analyses. The base capacities of ASs were 4.25-4.45 mmol/g, respectively. AS is a low cost and easy to handle base catalyst that showed promising catalytic performance in the synthesis of a dihydroquinazoline-based antibacterial drug that involves tandem hydration or decarboxylative amidation, imination, and Aza-Michael reactions.
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Affiliation(s)
- Fatemeh Tamaddon
- Department of Chemistry, Faculty of Science, Yazd University, Yazd 89195-741, Iran.
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27
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WITHDRAWN: Scalable preparation, characterization, and application of alkali-treated starch as a new organic base catalyst. Carbohydr Res 2016. [DOI: 10.1016/j.carres.2016.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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