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Zhang B, Hu C, Wang M, Wei H, Li S, Yu H, Wu Y, Wang G, Guo T, Chen H. Facile fabrication of a thermal/pH responsive IPN hydrogel drug carrier based on cellulose and chitosan through simultaneous dual-click strategy. J Colloid Interface Sci 2025; 678:827-841. [PMID: 39217698 DOI: 10.1016/j.jcis.2024.08.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Revised: 08/17/2024] [Accepted: 08/24/2024] [Indexed: 09/04/2024]
Abstract
Herein, an interpenetrating network hydrogel (IPN-Gel) based on cellulose and chitosan was synthesized via simultaneous amino-anhydride and azide-alkyne click reaction in water in one pot. The samples were characterized by various analytical methods including FTIR, SEM, XRD, XPS, 1H NMR and so forth. The fabrication conditions were optimized by single factor experiments with water uptake (WU) and gel mass fraction (GMF) as two indexes. The WU and GMF of the IPN-Gel prepared under optimized conditions were 1192.37 % and 74.00 %, respectively. Its WU descended with the ascension in temperature, and first descended and then gradually ascended with the ascension in pH, confirming that the IPN-Gel had thermal/pH dual responsiveness. Using 5-Fu as a model drug, the release behavior of 5-Fu in IPN-Gel was explored. Its release behavior could be regulated by changing temperature and pH values, and it followed the Korsmeyer Peppas model. The viability of 4 T1 cells and HUVEC cells exceeded 80 % after 48 h of incubation at a high concentration of 200 μg/mL IPN-Gel, and hemolytic percentage was below the allowed limit of 5 %. The study provides a new strategy for the preparation of the IPN-Gel with biocompatibility, swelling reversibility and controllable drug release.
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Affiliation(s)
- Bing Zhang
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, PR China
| | - Chunwang Hu
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, PR China
| | - Mengyuan Wang
- The Key Laboratory of Biomedical Material, School of Life Science and Technology, Xinxiang Medical University, Xinxiang, PR China
| | - Hongliang Wei
- National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou, PR China; School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, PR China.
| | - Songmao Li
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, PR China
| | - Hui Yu
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, PR China
| | - Yuxuan Wu
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, PR China
| | - Gang Wang
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, PR China
| | - Tao Guo
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, PR China
| | - Hongli Chen
- The Key Laboratory of Biomedical Material, School of Life Science and Technology, Xinxiang Medical University, Xinxiang, PR China.
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2
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Chellathurai MS, Chung LY, Hilles AR, Sofian ZM, Singha S, Ghosal K, Mahmood S. Pharmaceutical chitosan hydrogels: A review on its design and applications. Int J Biol Macromol 2024; 280:135775. [PMID: 39307491 DOI: 10.1016/j.ijbiomac.2024.135775] [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: 06/21/2024] [Revised: 08/10/2024] [Accepted: 09/17/2024] [Indexed: 10/13/2024]
Abstract
Chitosan (CS) has become a focal point of extensive research in the pharmaceutical industry due to its remarkable biodegradability, biocompatibility and sustainability. Chitosan hydrogels (CS HGs) are characterized by their viscoelasticity, flexibility and softness. The polar surfaces exhibit properties that mitigate interfacial tension between the hydrogel and body fluids. The inherent compatibility of CS HGs with body tissues and fluids positions them as outstanding polymers for delivering therapeutic proteins, peptides, DNA, siRNA, and vaccines. Designed to release drugs through mechanisms such as swelling-based diffusion, bioerosion, and responsiveness to stimuli, CS HGs offer a versatile platform for drug delivery. CS HGs play pivotal roles in serving purposes such as prolonging the duration of preprogrammed drug delivery, enabling stimuli-responsive smart delivery to target sites, protecting encapsulated drugs within the mesh network from adverse environments, and facilitating mucoadhesion and penetration through cell membranes. This review comprehensively outlines various novel preparation methods of CS HGs, delving into the parameters influencing drug delivery system design, providing a rationale for CS HG utilization in drug delivery, and presenting diverse applications across the pharmaceutical landscape. In synthesizing these facets, the review seeks to contribute to a nuanced understanding of the multifaceted role that CS HGs play in advancing drug delivery methodologies.
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Affiliation(s)
- Melbha Starlin Chellathurai
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Lip Yong Chung
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Ayah R Hilles
- INHART, International Islamic University Malaysia, Jalan Gombak, 53100 Kuala Lumpur, Selangor, Malaysia
| | - Zarif Mohamed Sofian
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Souvik Singha
- Nanofabrication and Tissue Engineering Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Jadavpur, Kolkata 700032, India
| | - Kajal Ghosal
- Nanofabrication and Tissue Engineering Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Jadavpur, Kolkata 700032, India
| | - Syed Mahmood
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia; Universiti Malaya-Research Center for Biopharmaceuticals and Advanced Therapeutics (UBAT), Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
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3
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Akhter A, Shirazi JH, Shoaib khan HM, Hussain MD, Kazi M. Development and evaluation of nanoemulsion gel loaded with bioactive extract of Cucumis melo var. agrestis: A novel approach for enhanced skin permeability and antifungal activity. Heliyon 2024; 10:e35069. [PMID: 39170221 PMCID: PMC11336325 DOI: 10.1016/j.heliyon.2024.e35069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 07/19/2024] [Accepted: 07/22/2024] [Indexed: 08/23/2024] Open
Abstract
The utilization of phytoconstituents in skin care products has emerged as a notable trend due to their recognized safety and therapeutic efficacy. However, the challenge lies in improving the effective delivery of phytoconstituents to specific tissues, primarily attributed to their poor solubility and low permeability. This study endeavors to address this challenge by developing, optimizing and characterizing Cucumis melo var. agrestis (CME) extract loaded nanoemulsion gel (CME-NEG), aiming to enhance the skin permeability and antifungal activity. Herein, nanoemulsions encapsulating the plant extract were prepared using ultrasonication technique and were characterized for droplet size, zeta potential, polydispersity index (PDI) and entrapment efficiency. Further, Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) analysis were conducted to characterize the optimized CME extract loaded nanoemulsion (CME-NE 3) formulation. The optimized formulation was blended with Carbopol 940 gel to develop CME-NEG, which was evaluated for release kinetics, in vitro permeation and in vitro antifungal activity. High performance liquid chromatography (HPLC) analysis confirmed the presence of gallic acid, chlorogenic acid, 4-Hydroxy benzoic acid (HB acid), kaempferol, caffeic acid and quercetin. Findings of 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay showed that the ethanolic extract had highest antioxidant activity (88.88 %). The optimized formulation displayed smooth spherical nanodroplets with size of 175.5 ± 1.56 nm, zeta potential of -21.5 ± 0.12 mV, PDI of 0.192 ± 0.06, and highest entrapment efficiency (EE) of 91.35 ± 1.65 %. The release profile of CME-NE exhibited a controlled release characteristic and the release kinetic mechanism was best described by the Korsmeyer-Peppas (Kp) model. In a 24 h permeation study, it was observed that the in vitro permeation of CME-NEG was 58.63 %, significantly higher than that of CME extract loaded plain gel (CME-PG) with an enhancement ratio of 2.12. The prepared CME-NEG formulation also presented enhanced antifungal activity as compared to pure CME extract. In conclusion, the designed CME-NEG offers a promising topical drug delivery system with enhanced skin permeability and antifungal activity.
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Affiliation(s)
- Ambreen Akhter
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, 63100, Punjab, Pakistan
| | - Jafir Hussain Shirazi
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, 63100, Punjab, Pakistan
| | - Haji Muhammad Shoaib khan
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, 63100, Punjab, Pakistan
| | - Muhammad Delwar Hussain
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland Eastern Shore, Princess Anne, MD, 21853, USA
| | - Mohsin Kazi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box-2457, Riyadh, 11451, Saudi Arabia
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Thomas N, Puluhulawa LE, Cindana Mo’o FR, Rusdin A, Gazzali AM, Budiman A. Potential of Pullulan-Based Polymeric Nanoparticles for Improving Drug Physicochemical Properties and Effectiveness. Polymers (Basel) 2024; 16:2151. [PMID: 39125177 PMCID: PMC11313896 DOI: 10.3390/polym16152151] [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: 06/12/2024] [Revised: 07/19/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
Pullulan, a natural polysaccharide with unique biocompatibility and biodegradability, has gained prominence in nanomedicine. Its application in nanoparticle drug delivery systems showcases its potential for precision medicine. AIM OF STUDY This scientific review aims to comprehensively discuss and summarize recent advancements in pullulan-based polymeric nanoparticles, focusing on their formulation, characterization, evaluation, and efficacy. METHODOLOGY A search on Scopus, PubMed, and Google Scholar, using "Pullulan and Nanoparticle" as keywords, identified relevant articles in recent years. RESULTS The literature search highlighted a diverse range of studies on the pullulan-based polymeric nanoparticles, including the success of high-selectivity hybrid pullulan-based nanoparticles for efficient boron delivery in colon cancer as the active targeting nanoparticle, the specific and high-efficiency release profile of the development of hyalgan-coated pullulan-based nanoparticles, and the design of multifunctional microneedle patches that incorporated pullulan-collagen-based nanoparticle-loaded antimicrobials to accelerate wound healing. These studies collectively underscore the versatility and transformative potential of pullulan-based polymeric nanoparticles in addressing biomedical challenges. CONCLUSION Pullulan-based polymeric nanoparticles are promising candidates for innovative drug delivery systems, with the potential to overcome the limitations associated with traditional delivery methods.
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Affiliation(s)
- Nurain Thomas
- Department of Pharmacy, Faculty of Sport and Health, Universitas Negeri Gorontalo, Jl. Jenderal Sudirman No. 6, Gorontalo 96128, Indonesia; (N.T.); (L.E.P.); (F.R.C.M.)
| | - Lisa Efriani Puluhulawa
- Department of Pharmacy, Faculty of Sport and Health, Universitas Negeri Gorontalo, Jl. Jenderal Sudirman No. 6, Gorontalo 96128, Indonesia; (N.T.); (L.E.P.); (F.R.C.M.)
| | - Faradila Ratu Cindana Mo’o
- Department of Pharmacy, Faculty of Sport and Health, Universitas Negeri Gorontalo, Jl. Jenderal Sudirman No. 6, Gorontalo 96128, Indonesia; (N.T.); (L.E.P.); (F.R.C.M.)
| | - Agus Rusdin
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia;
| | - Amirah Mohd Gazzali
- Department Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, P.Penang, Penang 11800, Malaysia;
| | - Arif Budiman
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia;
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5
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Zhaisanbayeva BA, Mun EA, Ulmanova L, Zhunissova Z, Umbayev B, Olzhayev F, Vorobjev IA, Hortelano G, Khutoryanskiy VV. In vitro and in vivo toxicity of thiolated and PEGylated organosilica nanoparticles. Int J Pharm 2024; 652:123852. [PMID: 38280501 DOI: 10.1016/j.ijpharm.2024.123852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 01/29/2024]
Abstract
This study comprises the comprehensive toxicological assessment of thiolated organosilica nanoparticles (NPs) synthesised from 3-mercaptopropyltrimethoxysilane (MPTS). We investigated the influence of three different types of nanoparticles synthesised from 3-mercaptopropyltrimethoxysilane: the starting thiolated silica (Si-NP-SH) and their derivatives prepared by surface PEGylation with PEG 750 (Si-NP-PEG750) and 5000 Da (Si-NP-PEG5000) on biological subjects from in vitro to in vivo experiments to explore the possible applications of those nanoparticles in biomedical research. As a result of this study, we generated a comprehensive understanding of the toxicological properties of these nanoparticles, including their cytotoxicity in different cell lines, hemolytic properties, in vitro localisation, mucosal irritation properties and biodistribution in BALB/c mice. Our findings indicate that all three types of nanoparticles can be considered safe and have promising prospects for use in biomedical applications. Nanoparticles did not affect the viability of HPF, MCF7, HEK293 and A549 cell lines at low concentrations (up to 100 µg/mL); moreover, they did not cause organ damage to BALB/c mice at concentrations of 10 mg/kg. The outcomes of this study enhance our understanding of the impact of organosilica nanoparticles on health and the environment, which is vital for developing silica nanoparticle-based drug delivery systems and provides opportunities to expand the applications of organosilica nanoparticles.
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Affiliation(s)
- Balnur A Zhaisanbayeva
- School of Engineering and Digital Science, Nazarbayev University, 010000 Astana, Kazakhstan; School of Sciences and Humanities, Nazarbayev University, 010000 Astana, Kazakhstan.
| | - Ellina A Mun
- School of Sciences and Humanities, Nazarbayev University, 010000 Astana, Kazakhstan.
| | - Leila Ulmanova
- School of Sciences and Humanities, Nazarbayev University, 010000 Astana, Kazakhstan.
| | - Zarina Zhunissova
- School of Sciences and Humanities, Nazarbayev University, 010000 Astana, Kazakhstan.
| | - Bauyrzhan Umbayev
- National Laboratory Astana, Nazarbayev University, 010000 Astana, Kazakhstan.
| | - Farkhad Olzhayev
- National Laboratory Astana, Nazarbayev University, 010000 Astana, Kazakhstan.
| | - Ivan A Vorobjev
- School of Sciences and Humanities, Nazarbayev University, 010000 Astana, Kazakhstan; National Laboratory Astana, Nazarbayev University, 010000 Astana, Kazakhstan.
| | - Gonzalo Hortelano
- School of Sciences and Humanities, Nazarbayev University, 010000 Astana, Kazakhstan.
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6
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Xu K, Duan S, Wang W, Ouyang Q, Qin F, Guo P, Hou J, He Z, Wei W, Qin M. Nose-to-brain delivery of nanotherapeutics: Transport mechanisms and applications. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2024; 16:e1956. [PMID: 38558503 DOI: 10.1002/wnan.1956] [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: 08/20/2023] [Revised: 03/02/2024] [Accepted: 03/05/2024] [Indexed: 04/04/2024]
Abstract
The blood-brain barrier presents a key limitation to the administration of therapeutic molecules for the treatment of brain disease. While drugs administered orally or intravenously must cross this barrier to reach brain targets, the unique anatomical structure of the olfactory system provides a route to deliver drugs directly to the brain. Entering the brain via receptor, carrier, and adsorption-mediated transcytosis in the nasal olfactory and trigeminal regions has the potential to increase drug delivery. In this review, we introduce the physiological and anatomical structures of the nasal cavity, and summarize the possible modes of transport and the relevant receptors and carriers in the nose-to-brain pathway. Additionally, we provide examples of nanotherapeutics developed for intranasal drug delivery to the brain. Further development of nanoparticles that can be applied to intranasal delivery systems promises to improve drug efficacy and reduce drug resistance and adverse effects by increasing molecular access to the brain. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Neurological Disease.
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Affiliation(s)
- Kunyao Xu
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Medical Primate Research Center & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Disease, Kunming, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Suqin Duan
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Medical Primate Research Center & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Disease, Kunming, China
| | - Wenjing Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
- Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing, China
| | - Qiuhong Ouyang
- Mental Health Center and National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Feng Qin
- Mental Health Center and National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Peilin Guo
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
- Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing, China
| | - Jinghan Hou
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Medical Primate Research Center & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Disease, Kunming, China
| | - Zhanlong He
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Medical Primate Research Center & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Disease, Kunming, China
| | - Wei Wei
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
- Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing, China
| | - Meng Qin
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China
- Mental Health Center and National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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7
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Srivastava N, Roy Choudhury A. Thermo-reversible self-assembled novel gellan gum hydrogels containing amino acid biogelators with antibacterial activity. Carbohydr Polym 2024; 324:121462. [PMID: 37985076 DOI: 10.1016/j.carbpol.2023.121462] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 11/22/2023]
Abstract
In recent years, hydrogels derived from natural polymers have gained considerable attention. However, lack of mechanical strength and poor stability has become major lacuna of such systems. Scientists have attempted to resolve this problem by introducing chemical cross-linkers or synthetic modifications of natural polymers. In contrast, biological cross-linkers may be more beneficial due to their cytocompatibility and non-immunogenicity. As a biogelator, amino acids (AA) may be lucrative, yet they remain untapped till date. Present study, for the first time, reports exploitation of ʟ-Lysine, ʟ-Arginine, ʟ-Aspartic acid, and ʟ-Glutamic acid as biogelator to fabricate novel gellan gum (GG) hydrogels through green chemistry. Furthermore, as a first instance, molecular docking was applied to gain insight into the interaction between GG and AA. As predicted through docking, physical cross-linking of these hydrogels accounted for their thermo-reversibility. Moreover, to assess the suitability of prepared hydrogel for its intended use, systematic characterization studies were performed via FTIR, Raman spectroscopy, XRD, FE-SEM, and TGA. Additionally, rheological behavior of hydrogels was investigated using variety of parameters. Interestingly, GG-AA hydrogels exhibited around 99 % antibacterial activity against multidrug-resistant bacteria. According to the findings of this study, these novel hydrogels may have immense potential in the food and biomedical sectors.
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Affiliation(s)
- Nandita Srivastava
- Biochemical Engineering Research & Process Development Centre (BERPDC), Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Sector-39A, Chandigarh 160036, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Anirban Roy Choudhury
- Biochemical Engineering Research & Process Development Centre (BERPDC), Institute of Microbial Technology (IMTECH), Council of Scientific and Industrial Research (CSIR), Sector-39A, Chandigarh 160036, India.
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8
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Wang J, Zhao C, Zhao S, Lu X, Ma M, Zheng J. Gelling properties of lysine-amidated citrus pectins: The key role of pH in both amidation and gelation. Carbohydr Polym 2023; 317:121087. [PMID: 37364957 DOI: 10.1016/j.carbpol.2023.121087] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/08/2023] [Accepted: 05/31/2023] [Indexed: 06/28/2023]
Abstract
The amidation of pectin by amino acids has been widely applied due to its safety and excellent gelling properties. This study systematically examined the effects of pH on the gelling properties of lysine-amidated pectin during amidation and gelation. Pectin was amidated over the range of pH 4-10, and the amidated pectin obtained at pH 10 showed the highest degree of amidation (DA, 27.0 %) due to the de-esterification, electrostatic attraction, and the stretching state of pectin. Moreover, it also exhibited the best gelling properties due to its greater numbers of calcium-binding regions (carboxyl groups) and hydrogen bond donors (amide groups). During gelation, the gel strength of CP (Lys 10) at pH 3-10 first increased and then decreased, with the highest gel strength at pH 8, which was due to the deprotonation of carboxyl groups, protonation of amino groups, and β-elimination. These results show that pH plays a key role in both amidation and gelation, with distinct mechanisms, and would provide a basis for the preparation of amidated pectins with excellent gelling properties. This will facilitate their application in the food industry.
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Affiliation(s)
- Jirong Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Chengying Zhao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Shaojie Zhao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Xingmiao Lu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Mengyu Ma
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jinkai Zheng
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China.
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9
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Niu Y, Wu J, Kang Y, Sun P, Xiao Z, Zhao D. Recent advances of magnetic chitosan hydrogel: Preparation, properties and applications. Int J Biol Macromol 2023; 247:125722. [PMID: 37419264 DOI: 10.1016/j.ijbiomac.2023.125722] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/19/2023] [Accepted: 07/04/2023] [Indexed: 07/09/2023]
Abstract
Magnetic chitosan hydrogels are organic-inorganic composite material with the characteristics of both magnetic materials and natural polysaccharides. Due to its biocompatibility, low toxicity and biodegradability, chitosan, a natural polymer has been widely used for preparing magnetic hydrogels. The addition of magnetic nanoparticles to chitosan hydrogels not only improves their mechanical strength, but also endows them with magnetic thermal effects, targeting capabilities, magnetically-sensitive release characteristics, easy separation and recovery, thus enabling them to be used in various applications including drug delivery, magnetic resonance imaging, magnetothermal therapy, and adsorption of heavy metals and dyes. In this review, the physical and chemical crosslinking methods of chitosan hydrogels and the methods for binding magnetic nanoparticles in hydrogel networks are first introduced. Subsequently, the properties of magnetic chitosan hydrogels were summarized including mechanical properties, self-healing, pH responsiveness and properties in magnetic fields. Finally, the potential for further technological and applicative advancements of magnetic chitosan hydrogels is discussed.
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Affiliation(s)
- Yunwei Niu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China
| | - Jiahe Wu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China
| | - Yanxiang Kang
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China
| | - Pingli Sun
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China
| | - Zuobing Xiao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China; School of Agriculture and Biology, Shanghai Jiaotong University, No. 800 Dongchuan Road, Shanghai 200240, China
| | - Di Zhao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China.
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10
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Du L, Chen L, Liu F, Wang W, Huang H. Nose-to-brain drug delivery for the treatment of CNS disease: New development and strategies. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2023; 171:255-297. [PMID: 37783558 DOI: 10.1016/bs.irn.2023.05.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Delivering drugs to the brain has always been a challenging task due to the restrictive properties of the blood-brain barrier (BBB). Intranasal delivery is therefore emerging as an efficient method of administration, making it easy to self-administration and thus provides a non-invasive and painless alternative to oral and parenteral administration for delivering therapeutics to the central nervous system (CNS). Recently, drug formulations have been developed to further enhance this nose-to-brain transport, primarily using nanoparticles (NPs). Therefore, the purposes of this review are to highlight and describe the anatomical basis of nasal-brain pathway and provide an overview of drug formulations and current drugs for intranasal administration in CNS disease.
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Affiliation(s)
- Li Du
- Biotherapeutic Research Center, Beijing Tsinghua Changgung Hospital, Beijing, P.R. China
| | - Lin Chen
- Department of Neurosurgery, Dongzhimen Hospital of Beijing University of Traditional Chinese Medicine, Beijing, P.R. China
| | - Fangfang Liu
- Department of Neurology, Jilin City Central Hospital, Jilin, China
| | - Wenya Wang
- Biotherapeutic Research Center, Beijing Tsinghua Changgung Hospital, Beijing, P.R. China,.
| | - Hongyun Huang
- Institute of Neurorestoratology, Third Medical Center of General Hospital of PLA, Beijing, P.R. China; Beijing Hongtianji Neuroscience Academy, Beijing, P.R. China.
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Froelich A, Jakubowska E, Jadach B, Gadziński P, Osmałek T. Natural Gums in Drug-Loaded Micro- and Nanogels. Pharmaceutics 2023; 15:pharmaceutics15030759. [PMID: 36986620 PMCID: PMC10059891 DOI: 10.3390/pharmaceutics15030759] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/15/2023] [Accepted: 02/21/2023] [Indexed: 03/03/2023] Open
Abstract
Gums are polysaccharide compounds obtained from natural sources, such as plants, algae and bacteria. Because of their excellent biocompatibility and biodegradability, as well as their ability to swell and their sensitivity to degradation by the colon microbiome, they are regarded as interesting potential drug carriers. In order to obtain properties differing from the original compounds, blends with other polymers and chemical modifications are usually applied. Gums and gum-derived compounds can be applied in the form of macroscopic hydrogels or can be formulated into particulate systems that can deliver the drugs via different administration routes. In this review, we present and summarize the most recent studies regarding micro- and nanoparticles obtained with the use of gums extensively investigated in pharmaceutical technology, their derivatives and blends with other polymers. This review focuses on the most important aspects of micro- and nanoparticulate systems formulation and their application as drug carriers, as well as the challenges related to these formulations.
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Marcello E, Chiono V. Biomaterials-Enhanced Intranasal Delivery of Drugs as a Direct Route for Brain Targeting. Int J Mol Sci 2023; 24:ijms24043390. [PMID: 36834804 PMCID: PMC9964911 DOI: 10.3390/ijms24043390] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/22/2023] [Accepted: 02/02/2023] [Indexed: 02/11/2023] Open
Abstract
Intranasal (IN) drug delivery is a non-invasive and effective route for the administration of drugs to the brain at pharmacologically relevant concentrations, bypassing the blood-brain barrier (BBB) and minimizing adverse side effects. IN drug delivery can be particularly promising for the treatment of neurodegenerative diseases. The drug delivery mechanism involves the initial drug penetration through the nasal epithelial barrier, followed by drug diffusion in the perivascular or perineural spaces along the olfactory or trigeminal nerves, and final extracellular diffusion throughout the brain. A part of the drug may be lost by drainage through the lymphatic system, while a part may even enter the systemic circulation and reach the brain by crossing the BBB. Alternatively, drugs can be directly transported to the brain by axons of the olfactory nerve. To improve the effectiveness of drug delivery to the brain by the IN route, various types of nanocarriers and hydrogels and their combinations have been proposed. This review paper analyzes the main biomaterials-based strategies to enhance IN drug delivery to the brain, outlining unsolved challenges and proposing ways to address them.
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Affiliation(s)
- Elena Marcello
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Turin, Italy
- Interuniversity Center for the Promotion of 3Rs Principles in Teaching and Research, Centro 3R, 56122 Pisa, Italy
| | - Valeria Chiono
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Turin, Italy
- Interuniversity Center for the Promotion of 3Rs Principles in Teaching and Research, Centro 3R, 56122 Pisa, Italy
- Institute for Chemical-Physical Processes, National Research Council (CNR-IPCF), 56124 Pisa, Italy
- Correspondence:
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Voriconazole Cyclodextrin Based Polymeric Nanobeads for Enhanced Solubility and Activity: In Vitro/In Vivo and Molecular Simulation Approach. Pharmaceutics 2023; 15:pharmaceutics15020389. [PMID: 36839711 PMCID: PMC9968121 DOI: 10.3390/pharmaceutics15020389] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 01/01/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023] Open
Abstract
Hydroxypropyl β-cyclodextrin (HPβCD) based polymeric nanobeads containing voriconazole (VRC) were fabricated by free radical polymerization using N, N'-methylene bisacrylamide (MBA) as a cross-linker, 2-acrylamide-2-methylpropane sulfonic acid (AMPS) as monomer and ammonium persulfate (APS) as reaction promoter. Optimized formulation (CDN5) had a particle size of 320 nm with a zeta potential of -35.5 mV and 87% EE. Scanning electron microscopy (SEM) depicted porous and non-spherical shaped beads. No evidence of chemical interaction was evident in FT-IR studies, whereas distinctive high-intensity VRC peaks were found superimposed in XRD. A stable polymeric network formation was evident in DSC studies owing to a lower breakdown in VRC loaded HPβCD in comparison to blank HPβCD. In vitro release studies showed 91 and 92% drug release for optimized formulation at pH 1.2 and 6.8, respectively, with first-order kinetics as the best-fit model and non-Fickian diffusion as the release mechanism. No evidence of toxicity was observed upon oral administration of HPβCD loaded VRC polymeric nanobeads owing to with cellular morphology of vital organs as observed in histopathology. Molecular docking indicates the amalgamation of the compounds highlighting the hydrophobic patching mediated by nanogel formulation. It can be concluded that the development of polymeric nanobeads can be a promising tool to enhance the solubility and efficacy of hydrophobic drugs such as VRC besides decreased toxicity and for effective management of fungal infections.
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