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Nagarjuna C, Ramakanth I. Solvent selective gelation of cetyltrimethylammonium bromide: structure, phase evolution and thermal characteristics. ROYAL SOCIETY OPEN SCIENCE 2024; 11:231487. [PMID: 38577219 PMCID: PMC10987984 DOI: 10.1098/rsos.231487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 02/01/2024] [Accepted: 02/27/2024] [Indexed: 04/06/2024]
Abstract
We report herein the gelation behaviour of cetyltrimethylammonium bromide (CTAB), a cationic surfactant, in a variety of solvent compositions. A turbid gel of CTAB in a binary solvent mixture at a critical composition was observed to be 1 : 3 v/v toluene : water. The molecular structure of the as-formed gel was investigated by X-ray diffraction and microscopic techniques, namely, optical and polarizing microscopy, scanning electron microscopy and small-angle X-ray scattering (SAXS). The phase evolution has been studied using UV-visible transmittance measurements and the thermal characteristics of the gel by differential scanning calorimetry measurements. SAXS studies, in conjunction with molecular modelling, revealed the gel to assemble as lamellae with high interdigitation of bilayer assembly of CTAB molecules with predominant non-covalent interactions, where the gel lamellae were inferred from the interplanar spacings. Rheological studies revealed the viscoelastic nature of the CTAB gels. The ability to form a gel has been evaluated in several polar solvents, such as methanol and chloroform, and non-polar solvents, such as toluene and carbon tetrachloride.
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Affiliation(s)
- Chapireddy Nagarjuna
- Department of Chemistry, School of Advanced Sciences, VIT-AP University, Amaravati, Andhra Pradesh522 241, India
| | - Illa Ramakanth
- Department of Chemistry, School of Advanced Sciences, VIT-AP University, Amaravati, Andhra Pradesh522 241, India
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Saji VS. Recent Updates on Supramolecular-Based Drug Delivery - Macrocycles and Supramolecular Gels. CHEM REC 2022; 22:e202200053. [PMID: 35510981 DOI: 10.1002/tcr.202200053] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/05/2022] [Indexed: 11/09/2022]
Abstract
Supramolecules-based drug delivery has attracted significant recent research attention as it could enhance drug solubility, retention time, targeting, and stimuli responsiveness. Among the different supramolecules and assemblies, the macrocycles and the supramolecular hydrogels are the two important categories investigated to a greater extent. Here, we provide the most recent advancements in these categories. Under macrocycles, reports on drug delivery by cyclodextrins, cucurbiturils, calixarenes/pillararenes, crown ethers and porphyrins are detailed. The second category discusses the supramolecular hydrogels of macrocycles/polymers and low molecular weight gelators. The updated information provided could be helpful to advance R & D in this vital area.
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Affiliation(s)
- Viswanathan S Saji
- Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
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Singh R, Kumar B, Sahu RK, Kumari S, Jha CB, Singh N, Mathur R, Hedau ST. Development of a pH-sensitive functionalized metal organic framework: in vitro study for simultaneous delivery of doxorubicin and cyclophosphamide in breast cancer. RSC Adv 2021; 11:33723-33733. [PMID: 35497517 PMCID: PMC9042314 DOI: 10.1039/d1ra04591a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 10/09/2021] [Indexed: 01/10/2023] Open
Abstract
Exploration of an efficient dual-drug based nanocarrier with high drug loading capacity, specific targeting properties, and long-term stability is highly desirable in cancer therapy. Metal-organic frameworks (MOFs) have proven to be a promising class of drug carriers due to their high porosity, crystalline properties with defined structure information, and their potential for further functionalization. To enhance the drug efficacy as well as to overcome the burst effect of drugs, here we synthesized a pH responsive folic acid (FA) and graphene oxide (GO) decorated zeolitical imidazolate frameworks-8 (GO-FA/ZIF-8), for targeted delivery of doxorubicin (DOX) and cyclophosphamide (CP), simultaneously. In this system, DOX molecules were encapsulated in the pores of ZIF-8 during in situ synthesis of ZIF-8 and CP molecules have been captured by the GO surface via hydrogen bonding and π-π interactions as well. Furthermore, the resulting pH-responsive nanocarrier (DOX@ZIF-8/GO-FA/CP) showed in vitro sustained release characteristics (76% of DOX and 80% of CP) by cleavage of chemical bonding and disruption of the MOFs structure under acidic condition (at pH 5.6). Moreover, DOX@ZIF-8/GO-FA/CP has synergistic cytotoxic effects as compared to the combination of both the drugs without ZIF-8/GO-FA when treating MCF-7 and MDA-MB-231 breast cancer cell lines (with a combination index of 0.29 and 0.75 for MCF-7 and MDA-MB-231 cell-lines, respectively). Hence this system can be applied as an effective platform for smart dual drug delivery in breast cancer treatment through its remarkable manageable multidrug release.
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Affiliation(s)
- Ragini Singh
- Division of Molecular Oncology, ICMR-National Institute of Cancer Prevention and Research I-7, Sector 39, Gautam Buddha Nagar Noida-201301 U.P. India +91-0120-2446909
| | - Binayak Kumar
- Division of Molecular Oncology, ICMR-National Institute of Cancer Prevention and Research I-7, Sector 39, Gautam Buddha Nagar Noida-201301 U.P. India +91-0120-2446909
| | - Ram Krishna Sahu
- Division of Molecular Oncology, ICMR-National Institute of Cancer Prevention and Research I-7, Sector 39, Gautam Buddha Nagar Noida-201301 U.P. India +91-0120-2446909
| | - Soni Kumari
- Division of Molecular Oncology, ICMR-National Institute of Cancer Prevention and Research I-7, Sector 39, Gautam Buddha Nagar Noida-201301 U.P. India +91-0120-2446909
| | - Chandan Bhogendra Jha
- Division of Cyclotron and Radiopharmaceutical Sciences, Institute of Nuclear Medicine and Allied Sciences, Defense Research and Development Organization Brig. S.K. Mazumdar Marg Delhi 110054 India
| | - Nahar Singh
- CSIR-National Physical Laboratory New Delhi 110012 India
| | - Rashi Mathur
- Division of Cyclotron and Radiopharmaceutical Sciences, Institute of Nuclear Medicine and Allied Sciences, Defense Research and Development Organization Brig. S.K. Mazumdar Marg Delhi 110054 India
| | - Suresh T Hedau
- Division of Molecular Oncology, ICMR-National Institute of Cancer Prevention and Research I-7, Sector 39, Gautam Buddha Nagar Noida-201301 U.P. India +91-0120-2446909
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Su M, Pang Z, Li L, Ren J, Yuan F, Lv F, Han J, Wei Y, Gao Y, Zhang J, Qian S. Charge-assisted bond and molecular self-assembly drive the gelation of lenvatinib mesylate. Int J Pharm 2021; 607:121019. [PMID: 34416330 DOI: 10.1016/j.ijpharm.2021.121019] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/26/2021] [Accepted: 08/15/2021] [Indexed: 10/20/2022]
Abstract
Lenvatinib mesylate (LM) is a first-line anticancer agent for the treatment of unresectable hepatocellular carcinoma, while it formed viscoelastic hydrogel when contacting with aqueous medium, which would significantly hinder its in vitro dissolution. The aim of this study was to systematicly explore the gelation mechanism and gel properties via thermal analysis, rheology, morphology and spectroscopy studies. The formed hydrogel was found to be composed of a new polymorph of crystalline LM, and its mechanical strength depended on the cross-linking degree of the fibrillar network structure. Spectroscopy analyses revealed that the intermolecular hydrogen bonds (the bifurcated hydrogen bond between the adjacent urea groups and the NH⋯OC hydrogen bond between the primary amide groups) as well as π-π stacking interactions (between the benzene ring and the quinoline ring) were suggested to be the driving forces for the self-assembly of LM during gelation process. Additionally, no gelation phenomenon was observed when suspending the base form lenvatinib in water, while it could form gel in various acidic solutions (e.g. hydrochloric acid, phosphoric acid and methanesulfonic acid) because the regenerated N+-H group increased the solubility of lenvatinib and promoted the balance between the dissolution or aggregation of LX (X: acid radical ion) molecules in solutions. In conclusion, the charge-assisted bond N+-H in LM molecule and intermolecular non-covalent interactions drived the hydrogel formation of LM in aqueous media. This study elucidates the gelation mechanism and gel properties of LM hydrogel, which would be helpful to figure out strategy to eliminate its gelation fundamentally and pave the way for its further formulation development in future.
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Affiliation(s)
- Meiling Su
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Zunting Pang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Luyuan Li
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Junjie Ren
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Fang Yuan
- Nanjing F&S Pharmatech Co., Ltd., Nanjing 211805, PR China
| | - Fusheng Lv
- Nanjing F&S Pharmatech Co., Ltd., Nanjing 211805, PR China
| | - Jiawei Han
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Yuanfeng Wei
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Yuan Gao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
| | - Jianjun Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
| | - Shuai Qian
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
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Lin TF, Yeh SH. Thermosensitive Interfacial Migration of 5-FU in the Microenvironment of Pluronic Block Copolymers. Polymers (Basel) 2021; 13:polym13162705. [PMID: 34451244 PMCID: PMC8399250 DOI: 10.3390/polym13162705] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 01/18/2023] Open
Abstract
Chemotherapy is one of the most important ways to treat cancer. At present, chemotherapy medicines are mainly administered by intravenous injection or oral administration. However, systemic medical care requires the dosage of high concentrations of drugs to defeat the malignant tumor growth. In recent years, the use of polymer composites for local and sustained drug release has become an important field of research to minimize side effects due to high-concentration chemotherapy drugs. Here, 19F-{1H} heteronuclear Overhauser enhancement spectroscopy (HOESY) was used to study the micellular environment of the F-containing chemotherapeutic drug 5-FU in Pluronic F127, Pluronic L121, and F127/L121 binary blending composites. The distribution of 5-FU in micelles is related to the PEO and PPO segment length of Pluronic polymers and the environmental temperature. The drug release tests further confirm that if 5-FU medicines were loaded in the PPO segment inside the micelles, the purpose of the prolonged drug release carrier is achieved.
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Affiliation(s)
- Tz-Feng Lin
- Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan
- Master’s Program of Electrical and Communications Engineering, Feng Chia University, Taichung 407, Taiwan;
- Correspondence:
| | - Shih-Hsuan Yeh
- Master’s Program of Electrical and Communications Engineering, Feng Chia University, Taichung 407, Taiwan;
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Shao X, Hou Y, Zhong X. Modulation of evaporation-affected crystal motion in a drying droplet by saline and surfactant concentrations. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126701] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Arokianathan JF, Ramya KA, Deshpande AP, Leemarose A, Shanmugam G. Supramolecular organogel based on di-Fmoc functionalized unnatural amino acid: An attempt to develop a correlation between molecular structure and ambidextrous gelation. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126430] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Yan BY, Liu BL, Yi LY, Wang GL, Xue BZ, Xie Y. Doxorubicin-Loaded In Situ Gel Combined with Biocompatible Hydroxyethyl Cellulose Hemostatic Gauze for Controlled Release of Drugs and Prevention of Breast Cancer Recurrence Postsurgery. ACS Biomater Sci Eng 2020; 6:5959-5968. [PMID: 33320580 DOI: 10.1021/acsbiomaterials.0c01187] [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] [Indexed: 12/24/2022]
Abstract
Biodegradable hemostatic gauze used for surgical hemostasis has attracted great interest due to its excellent compliance and local anti-inflammatory and therapeutic effects when combined with drugs. Herein, we demonstrate the successful fabrication of water-soluble absorbed cellulose hemostatic material by introducing a biocompatible hydroxyethyl cellulose (HEC) hemostasis gauze into doxorubicin-loaded in situ gel (GEL(DOX)) for the prevention of breast cancer recurrence after surgical tumor resection. The present results show that HEC has a shorter metabolic period, no anaphylaxis and peripheral nerve toxicity, and possesses more advantages than oxidative regenerated cellulose hemostasis gauze, a commercially available product in market. HEC is of the physical hemostasis in mechanism, which does not induce physiological hemostasis and hemolysis. In addition, the combination of HEC with GEL(DOX) not only stops the bleeding efficiently, but also effectively reduces the proliferation of tumor with no cardiac toxic and bone marrow suppression. After treatment, the tumor inhibition rate is up to 90%, resulting in prolonged survival time to 58 days. In conclusion, HEC hemostatic gauze has a broad prospect in clinical application due to its perfect biocompatibility, and we envision that it is a new strategy for the prevention of breast cancer to implant HEC hemostatic gauze containing GEL(DOX) at the postoperative site after surgery.
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Affiliation(s)
- Bai-Yi Yan
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Bai-Lu Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Ling-Yu Yi
- Penglai Nuokang Pharmaceutical Company, Limited, Shandong Province, Penglai 265607, P. R. China
| | - Gui-Ling Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Bai-Zhong Xue
- Penglai Nuokang Pharmaceutical Company, Limited, Shandong Province, Penglai 265607, P. R. China
| | - Ying Xie
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
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Wang H, Li T, Li J, Tong W, Gao C. One-pot synthesis of poly(ethylene glycol) modified zeolitic imidazolate framework-8 nanoparticles: Size control, surface modification and drug encapsulation. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.02.025] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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10
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Li Y, Chen M. Synthesis and characterization of curdlan/β-cyclodextrin composite hydrogels for sustained-release. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2018.1506983] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Yucheng Li
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, China
| | - Meiling Chen
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, China
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Lin Q, Jiang XM, Liu L, Chen JF, Zhang YM, Yao H, Wei TB. A novel supramolecular organogel based on acylhydrazone functionalized pillar[5]arene acts as an I - responsive smart material. SOFT MATTER 2017; 13:7222-7226. [PMID: 28932857 DOI: 10.1039/c7sm01576c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A novel organic gelator (PZ) has been synthesized by rationally connecting a pillar[5]arene moiety and a bis(hexadecyloxy)phenyl functionalized acylhydrazone moiety. PZ could self-assemble into a supramolecular polymer and form a stable organogel (OPZ) in cyclohexanol by multi-self-assembly driving forces such as C-Hπ, ππ, vdW and hydrogen bonding interactions. The organogel (OPZ) shows blue aggregation-induced emission (AIE). Interestingly, the organogel OPZ could sense iodide ions (I-) in the gel-gel state with high selectivity and sensitivity. The detection limit of OPZ for I- is 9.4 × 10-8 M, indicating high sensitivity to I-. Furthermore, a thin film based on OPZ was prepared, which could be used as a smart material for the detection of I- as well as a fluorescent security display material.
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Affiliation(s)
- Qi Lin
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China.
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