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Younus HA, Saleem F, Hameed A, Al-Rashida M, Al-Qawasmeh RA, El-Naggar M, Rana S, Saeed M, Khan KM. Part-II: an update of Schiff bases synthesis and applications in medicinal chemistry-a patent review (2016-2023). Expert Opin Ther Pat 2023; 33:841-864. [PMID: 38115554 DOI: 10.1080/13543776.2023.2297729] [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: 09/14/2023] [Accepted: 11/15/2023] [Indexed: 12/21/2023]
Abstract
INTRODUCTION Schiff bases are compounds with characteristic features of azomethine linkage (-C=N-). Schiff bases are capable of coordinating with metal ions via azomethine nitrogen. Schiff base derivatives and their metal complexes are known for intriguing novel therapeutic properties. In organic synthesis, the Schiff base reaction is prime in creating the C-N bond. Synthetic accessibility and structural diversity are the salient features for facile synthesis of Schiff base hybrids via a condensation reaction between an aldehyde/ketone and primary amines. AREA COVERED This review aims to provide a comprehensive overview of the commendable medicinal applications of Schiff base derivatives and their metal complexes patented from 2016 to 2023. EXPERT OPINION Schiff base derivatives are exceptional molecules for their assorted applications in medicinal chemistry. Several Schiff base products are marketed as drugs, and plenty of room is available for the purposive synthesis of new compounds in a diverse pool of disciplines. Expansion in the derivatization of Schiff bases in innumerable directions with multitudinous applications makes them 'magical molecules.' These compounds have proved extraordinary, from medicinal chemistry to other fields outside medicine. This review covers the therapeutic importance of Schiff base derivatives and aims to cover the patents published in recent years (2016-2023).
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Affiliation(s)
- Hafiza Amna Younus
- Department of Chemistry, Forman Christian College (A Chartered University), Lahore, Pakistan
| | - Faiza Saleem
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Abdul Hameed
- Department of Chemistry, University of Sahiwal, Sahiwal, Pakistan
| | - Mariya Al-Rashida
- Department of Chemistry, Forman Christian College (A Chartered University), Lahore, Pakistan
| | - Raed A Al-Qawasmeh
- Pure and Applied Chemistry Group, Department of Chemistry, College of Sciences, University of Sharjah, Sharjah, UAE
| | - Mohamed El-Naggar
- Pure and Applied Chemistry Group, Department of Chemistry, College of Sciences, University of Sharjah, Sharjah, UAE
| | - Sobia Rana
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Muhammad Saeed
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore, Pakistan
| | - Khalid Mohammed Khan
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
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Tamer TM, Zhou H, Hassan MA, Abu-Serie MM, Shityakov S, Elbayomi SM, Mohy-Eldin MS, Zhang Y, Cheang T. Synthesis and physicochemical properties of an aromatic chitosan derivative: In vitro antibacterial, antioxidant, and anticancer evaluations, and in silico studies. Int J Biol Macromol 2023; 240:124339. [PMID: 37028626 DOI: 10.1016/j.ijbiomac.2023.124339] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/25/2023] [Accepted: 04/02/2023] [Indexed: 04/09/2023]
Abstract
This study was designed to synthesize a functionalized chitosan by coupling the amine groups of chitosan with 2,4,6-Trimethoxybenzaldehyde, producing a chitosan Schiff base (Cs-TMB). The development of Cs-TMB was verified employing FT-IR, 1H NMR, the electronic spectrum, and elemental analysis. Antioxidant assays exhibited significant ameliorations of Cs-TMB, reporting scavenging activities of 69.67 ± 3.48 % and 39.65 ± 1.98 % for ABTS•+ and DPPH, respectively, while native chitosan showed scavenging ratios of 22.69 ± 1.13 % and 8.24 ± 0.4.1 % toward ABTS•+ and DPPH, respectively. Besides, Cs-TMB exerted significant antibacterial activity up to 90 % with remarkable bactericidal capacity against virulent gram-negative and gram-positive bacteria compared to the original chitosan. Furthermore, Cs-TMB exhibited a safe profile against normal fibroblast cells (HFB4). Interestingly, flow cytometric analysis showed that Cs-TMB demonstrated prominent anticancer properties of 52.35 ± 2.99 % against human skin cancer cells (A375), compared to 10.66 ± 0.55 % for Cs-treated cells. Moreover, Python and PyMOL in-house scripts were used to predict the interaction of Cs-TMB with the adenosine A1 receptor and visualized as a protein-ligand system submerged in a lipid membrane. Overall, these findings accentuate that Cs-TMB could be a favorable representative for wound dressing formulations and skin cancer treatment.
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Affiliation(s)
- Tamer M Tamer
- Polymer Materials Research Department, Advanced Technologies and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt.
| | - Hongyan Zhou
- Department of Neurology, Hospital of Sun Yat-sen University, Guangdong 510080, China.
| | - Mohamed A Hassan
- Protein Research Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt.
| | - Marwa M Abu-Serie
- Medical Biotechnology Department, Genetic Engineering and Biotechnology Research Institute, (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt
| | - Sergey Shityakov
- Infochemistry Scientific Center, ITMO University, Saint-Petersburg 191002, Russia
| | - Smaher M Elbayomi
- Department of Chemistry, Faculty of Science, Damietta University, New Damietta City, Damietta 34517, Egypt
| | - Mohamed S Mohy-Eldin
- Polymer Materials Research Department, Advanced Technologies and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt
| | - Yongcheng Zhang
- Department of Breast Care Surgery, Hospital/School of Clinical Medicine of Guangdong Pharmaceutical University, Guangdong 510080, China.
| | - Tuckyun Cheang
- Department of Neurosurgery, Hospital/School of Clinical Medicine of Guangdong Pharmaceutical University, Guangdong 510080, China.
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Hassan MA, Tamer TM, Omer AM, Baset WMA, Abbas E, Mohy-Eldin MS. Therapeutic potential of two formulated novel chitosan derivatives with prominent antimicrobial activities against virulent microorganisms and safe profiles toward fibroblast cells. Int J Pharm 2023; 634:122649. [PMID: 36709834 DOI: 10.1016/j.ijpharm.2023.122649] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/19/2023] [Accepted: 01/22/2023] [Indexed: 01/27/2023]
Abstract
The development of new antimicrobial agents has been drawing considerable attention due to the extreme escalation of multi-drug resistant microorganisms. We thus sought to ameliorate the antimicrobial activities of the chitosan (Cs) biopolymer by coupling chitosan with cyclohexanone and 2-N-methyl pyrrolidone, synthesizing two novel Schiff bases (CsSB1 and CsSB2), respectively. FT-IR, TGA, DSC, SEM, and potentiometric titration were employed to characterize the formulated chitosan derivatives. The findings exposed that the degrees of deacetylation were 88.12% and 89.98% for CsSB1 and CsSB2, respectively. The antimicrobial capacities of CsSB1 and CsSB2 were substantially enhanced compared with prime chitosan. Furthermore, the CsSB1 and CsSB2 demonstrated minimum inhibitory concentrations (MIC) of 50 µg/ml in relation to all studied microorganisms, whereas chitosan revealed MIC value of 50 µg/ml only for E. coli. Furthermore, CsSB1 with a concentration of 250 µg/ml manifested the highest antibacterial activity against Gram-positive bacteria. Correspondingly, CsSB2 revealed a comparable trend of microbial hindrance with lower activities. Besides, the two derivatives could thwart the growth of Candida albicans (C. albicans). The cytotoxicity assay of the biomaterials accentuated their biocompatibility with fibroblasts. Collectively, the two formulated chitosan derivatives could competently rival the native chitosan, particularly for future applications in wound healing.
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Affiliation(s)
- Mohamed A Hassan
- Protein Research Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, P.O. Box: 21934 Alexandria, Egypt.
| | - Tamer M Tamer
- Polymer Materials Research Department, Advanced Technologies and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, P.O. Box: 21934 Alexandria, Egypt.
| | - Ahmed M Omer
- Polymer Materials Research Department, Advanced Technologies and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, P.O. Box: 21934 Alexandria, Egypt
| | - Walid M A Baset
- National Organization for Drug Control and Research (NODCAR), 51 Wezaret El-Zeraa st., Dokki, Cairo, Egypt
| | - Eman Abbas
- Zoology Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Mohamed S Mohy-Eldin
- Polymer Materials Research Department, Advanced Technologies and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, P.O. Box: 21934 Alexandria, Egypt
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A comprehensive review on the synthesis, characterization, and catalytic application of transition-metal Schiff-base complexes immobilized on magnetic Fe3O4 nanoparticles. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214614] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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5
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Synthesis and antifungal activity of slow-release pyridinylcarbonyl chitooligosaccharide copper complexes. Carbohydr Polym 2022; 291:119663. [DOI: 10.1016/j.carbpol.2022.119663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/11/2022] [Accepted: 05/24/2022] [Indexed: 11/18/2022]
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Manimohan M, Paulpandiyan R, Pugalmani S, Sithique MA. Biologically active Co (II), Cu (II), Zn (II) centered water soluble novel isoniazid grafted O-carboxymethyl chitosan Schiff base ligand metal complexes: Synthesis, spectral characterisation and DNA nuclease activity. Int J Biol Macromol 2020; 163:801-816. [PMID: 32652152 DOI: 10.1016/j.ijbiomac.2020.06.278] [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: 04/22/2020] [Revised: 06/17/2020] [Accepted: 06/29/2020] [Indexed: 12/26/2022]
Abstract
In this study, the new N, N, O tridentate donor water soluble isoniazid based biopolymer Schiff base ligand and their Co (II), Cu (II), Zn (II) metal complexes were prepared. The compounds were designed for potential biological application such as antibacterial, antifungal, anti-inflammatory, total antioxidant, antidiabetic and DNA binding studies. The synthesized compounds were illuminated in different light sources of various spectra were used to explore the functional groups of Biopolymer derivatives. Thermal degradation, thermal stability and percentage of mass loss for the prepared compounds were investigated through thermo gravimetric and differential thermal (TGA-DTA) analyses. Crystalline structure of synthesized biopolymer derivatives were explored by X-ray diffraction (XRD) studies, the crystallinity of chitosan is gradually decreased after the Schiff base and complex formation. Surface morphology and structures of the prepared compounds were examined using SEM analysis. The magnetic moment and magnetism of the metal complexes were studied using Vibrating-sample magnetometer (VSM). Antidiabetic studies of Biopolymer Schiff base and metal complexes were carried out by α-amylose inhibitory method. DNA nuclease activities of synthesized metal complexes were investigated by Ultra-Violet (UV) and viscometry methods. The Cu (II) complexes showed better DNA binding results than Co (II) and Zn (II) complexes.
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Affiliation(s)
- Murugaiyan Manimohan
- PG & Research Department of Chemistry, Islamiah College (Autonomous), Vaniyambadi, Tirupattur District, Tamil Nadu 635 752, India
| | | | | | - Mohamed Aboobucker Sithique
- PG & Research Department of Chemistry, Islamiah College (Autonomous), Vaniyambadi, Tirupattur District, Tamil Nadu 635 752, India.
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Manimohan M, Pugalmani S, Sithique MA. Synthesis, Spectral Characterisation and Biological Activities of Novel Biomaterial/N, N, O Donor Tridentate Co (II), Ni (II) and Zn (II) Complexes of Hydrazide Based Biopolymer Schiff Base Ligand. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01578-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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O-Carboxymethylated chitosan; A promising tool with in-vivo anti-inflammatory and analgesic properties in albino rats. Int J Biol Macromol 2020; 156:531-536. [DOI: 10.1016/j.ijbiomac.2020.04.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/05/2020] [Accepted: 04/03/2020] [Indexed: 01/22/2023]
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9
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Synthesis, characterization and antioxidant activity of chitosan Schiff base derivatives bearing (−)-gossypol. Carbohydr Polym 2020; 240:116333. [DOI: 10.1016/j.carbpol.2020.116333] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 04/09/2020] [Accepted: 04/16/2020] [Indexed: 11/22/2022]
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10
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Manimohan M, Pugalmani S, Ravichandran K, Sithique MA. Synthesis and characterisation of novel Cu(ii)-anchored biopolymer complexes as reusable materials for the photocatalytic degradation of methylene blue. RSC Adv 2020; 10:18259-18279. [PMID: 35692624 PMCID: PMC9122621 DOI: 10.1039/d0ra01724h] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 04/06/2020] [Indexed: 11/21/2022] Open
Abstract
This study focused on the synthesis, photocatalytic degradation of organic dyes and biological activity of novel N, N, O-donor tridentate water soluble 4-hydroxy benzohydrazide-grafted biopolymer Schiff base Cu(ii) complexes. The eco-friendly catalysts were designed for potential application in the degradation of organic dyes. The photocatalytic degradation of methylene blue was investigated with various irradiation times (30, 60, 90 and 120 min), catalytic dosages (5, 10, 15 and 20 mg) and pH (3, 7 and 12). The as-prepared compounds were characterised via various techniques including FT-IR and FT-NMR spectroscopy; TGA-DTA, XRD, SEM-EDAX; ESR and UV-vis spectroscopy; photoluminescence, magnetic moment, and conductivity measurements; and elemental and thermal analysis. The crystallinity of the Schiff base ligands, chitosan, and their Cu(ii) complexes was analysed via X-ray diffraction (XRD) studies. The XRD patterns revealed that the polymer chitosan was more crystalline than the Schiff base ligands and their complexes. The surface morphological analysis by scanning electron microscopy (SEM) revealed that the Cu(ii) complexes were amorphous in nature compared to chitosan and the ligands. The anti-inflammatory and anti-diabetic studies of the biopolymer Cu(ii) complexes were performed using the albumin denaturation technique and McCue and Shetty method, respectively. The as-synthesized 4-hydroxy benzohydrazide-grafted O-carboxymethyl chitosan Schiff base ligands and their Cu(ii) complexes showed a good anti-inflammatory and antidiabetic effect. The photocatalytic activity proved that the aryl-substituted complex was more efficient than the aliphatic-substituted complex.
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Affiliation(s)
- Murugaiyan Manimohan
- PG & Research Department of Chemistry, Islamiah College (Autonomous) Vaniyambadi, Tirupattur District Tamil Nadu- 635 752 India
| | | | - K Ravichandran
- Department of Analytical Chemistry, University of Madras, Guindy Campus Chennai India
| | - Mohamed Aboobucker Sithique
- PG & Research Department of Chemistry, Islamiah College (Autonomous) Vaniyambadi, Tirupattur District Tamil Nadu- 635 752 India
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11
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Yu S, Cui J, Wang J, Zhong C, Wang X, Wang N. Facile fabrication of Cu(II) coordinated chitosan-based magnetic material for effective adsorption of reactive brilliant red from aqueous solution. Int J Biol Macromol 2020; 149:562-571. [DOI: 10.1016/j.ijbiomac.2020.01.285] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 01/28/2020] [Accepted: 01/28/2020] [Indexed: 10/25/2022]
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12
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Manimohan M, Pugalmani S, Sithique MA. Biologically Active Water Soluble Novel Biopolymer/Hydrazide Based O-Carboxymethyl Chitosan Schiff Bases: Synthesis and Characterisation. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01487-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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13
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Biologically active novel N, N, O donor tridentate water soluble hydrazide based O-carboxymethyl chitosan Schiff base Cu (II) metal complexes: Synthesis and characterisation. Int J Biol Macromol 2019; 136:738-754. [DOI: 10.1016/j.ijbiomac.2019.06.115] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/24/2019] [Accepted: 06/16/2019] [Indexed: 12/19/2022]
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14
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Pyrimidyl formamidine palladium(II) complex as a nanocatalyst for aqueous Suzuki-Miyaura coupling. Heliyon 2019; 5:e01367. [PMID: 30957046 PMCID: PMC6431754 DOI: 10.1016/j.heliyon.2019.e01367] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/01/2019] [Accepted: 03/13/2019] [Indexed: 11/24/2022] Open
Abstract
Synthesis of a new phosphene-free nano-size formamidine-based palladium complex have been achieved. The molecular structure of novel palladium complex have been confirmed using spectroscopic methods of analysis as well as physical characterizations. The synthesized complex has been used as a catalyst for microwave assisted aqueous Suzuki-Miyaura Cross-coupling (SMC) of aryl bromides with phenylboronic acid. The formamidine-based Pd(II)-complex exhibited excellent catalytic activity to obtain biaryls using mild reaction conditions.
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Antony R, Arun T, Manickam STD. A review on applications of chitosan-based Schiff bases. Int J Biol Macromol 2019; 129:615-633. [PMID: 30753877 DOI: 10.1016/j.ijbiomac.2019.02.047] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 02/01/2019] [Accepted: 02/07/2019] [Indexed: 02/07/2023]
Abstract
Biopolymers have become very attractive as they are degradable, biocompatible, non-toxic and renewable. Due to the intrinsic reactive amino groups, chitosan is vibrant in the midst of other biopolymers. Using the versatility of these amino groups, various structural modifications have been accomplished on chitosan through certain chemical reactions. Chemical modification of chitosan via imine functionalization (RR'CNR″; R: alkyl/aryl, R': H/alkyl/aryl and R″: chitosan ring) is significant as it recommends the resultant chitosan-based Schiff bases (CSBs) for the important applications in the fields like biology, catalysis, sensors, water treatment, etc. CSBs are usually synthesized by the Schiff condensation reaction between chitosan's amino groups and carbonyl compounds with the removal of water molecules. In this review, we first introduce the available synthetic approaches for the preparation of CSBs. Then, we discuss the biological applications of CSBs including antimicrobial activity, anticancer activity, drug carrier ability, antioxidant activity and tissue engineering capacity. Successively, the applications of CSBs in other fields such as catalysis, adsorption and sensors are demonstrated.
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Affiliation(s)
- R Antony
- Centre for Scientific and Applied Research, PSN College of Engineering and Technology (Autonomous), Tirunelveli 627152, Tamil Nadu, India.
| | - T Arun
- Department of Chemistry, Kamaraj College, Thoothukudi 628003, Tamil Nadu, India
| | - S Theodore David Manickam
- Centre for Scientific and Applied Research, PSN College of Engineering and Technology (Autonomous), Tirunelveli 627152, Tamil Nadu, India.
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Murugaiyan M, Mani SP, Sithique MA. Zinc(ii) centered biologically active novel N,N,O donor tridentate water-soluble hydrazide-based O-carboxymethyl chitosan Schiff base metal complexes: synthesis and characterisation. NEW J CHEM 2019. [DOI: 10.1039/c9nj00670b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this study, novel eco-friendly and water-soluble chitosan Schiff base derivatives have been designed for potential use in antimicrobial applications.
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Affiliation(s)
- Manimohan Murugaiyan
- PG & Research Department of Chemistry
- Islamiah College (Autonomous)
- Vaniyambadi – 635 752, Vellore District
- India
| | - S. Pugal Mani
- Department of Analytical Chemistry
- University of Madras
- Chennai – 600 025
- India
| | - Mohamed Aboobucker Sithique
- PG & Research Department of Chemistry
- Islamiah College (Autonomous)
- Vaniyambadi – 635 752, Vellore District
- India
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17
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Ahmed K, Saikia G, Begum P, Gogoi SR, Sharma M, Talukdar H, Islam NS. Selective and Green Sulfoxidation in Water using a New Chitosan Supported Mo(VI) Complex as Heterogeneous Catalyst. ChemistrySelect 2018. [DOI: 10.1002/slct.201803000] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kabirun Ahmed
- Department of Chemical Sciences; Tezpur University Napaam; Tezpur- 784028, Assam India
| | - Gangutri Saikia
- Department of Chemical Sciences; Tezpur University Napaam; Tezpur- 784028, Assam India
| | - Pakiza Begum
- Department of Chemical Sciences; Tezpur University Napaam; Tezpur- 784028, Assam India
| | - Sandhya Rani Gogoi
- Department of Chemical Sciences; Tezpur University Napaam; Tezpur- 784028, Assam India
| | - Mitu Sharma
- Department of Chemical Sciences; Tezpur University Napaam; Tezpur- 784028, Assam India
| | - Hiya Talukdar
- Department of Chemical Sciences; Tezpur University Napaam; Tezpur- 784028, Assam India
| | - Nashreen S. Islam
- Department of Chemical Sciences; Tezpur University Napaam; Tezpur- 784028, Assam India
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18
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Fenton-like nanocatalyst for photodegradation of methylene blue under visible light activated by hybrid green DNSA@Chitosan@MnFe2O4. Carbohydr Polym 2018; 197:17-28. [DOI: 10.1016/j.carbpol.2018.05.076] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 04/27/2018] [Accepted: 05/25/2018] [Indexed: 01/24/2023]
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19
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Demetgül C, Beyazit N. Synthesis, characterization and antioxidant activity of chitosan-chromone derivatives. Carbohydr Polym 2018; 181:812-817. [DOI: 10.1016/j.carbpol.2017.11.074] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 11/15/2017] [Accepted: 11/20/2017] [Indexed: 01/05/2023]
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20
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Naz A, Arun S, Narvi SS, Alam MS, Singh A, Bhartiya P, Dutta PK. Cu(II)-carboxymethyl chitosan-silane schiff base complex grafted on nano silica: Structural evolution, antibacterial performance and dye degradation ability. Int J Biol Macromol 2017; 110:215-226. [PMID: 29169947 DOI: 10.1016/j.ijbiomac.2017.11.112] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/26/2017] [Accepted: 11/17/2017] [Indexed: 11/19/2022]
Abstract
O-Carboxymethyl chitosan (OCMC) Schiff's base was utilized for a new class of organic-inorganic hybrid material by grafting it on nano-silica-silane and further metallated with Cu (II). Here (3-Aminopropyl) triethoxysilane (APTES) was used as a linker and 2-hydroxy-1-naphthaldehyde (HN) for Schiff's base formation. The hybrid was characterized by FTIR, TGA, powder XRD, SEM, CHN, DLS, ICP-AES, diffuse reflectance UV-vis and EDX spectroscopic techniques. Magnetization measurements were carried out by VSM at room temperature. This study explored the possible synergic effect of unique properties of carboxymethyl chitosan, Schiff's base Cu (II) complex and nano-silica towards antibacterial activity and in dye degradation studies. The antibacterial performance of nano-hybrid material was examined against both Gram-positive (Escherichia coli) and Gram-negative (Bacillus subtilis) bacteria. The catalytic activity of the hybrid was tested for degradation of reactive black 5 (RB5) through advanced oxidation processes using H2O2 as oxidant. The results show a high dye degradation efficiency of 93% in 130min by the hybrid catalyst with reusability. As per published reports, Chitosan-Schiff's bases show strong antimicrobial activity and their Cu complexes exhibit good catalytic and anticancer activities. Therefore, it is expected that the new organic-inorganic hybrid would be highly applicable in environmental as well as biomedical fields.
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Affiliation(s)
- Amreen Naz
- Department of Chemistry, Motilal Nehru National Institute of Technology, Allahabad 211004, Uttar Pradesh, India
| | - Shiva Arun
- Department of Chemistry, Motilal Nehru National Institute of Technology, Allahabad 211004, Uttar Pradesh, India
| | - Shahid Suhail Narvi
- Department of Chemistry, Motilal Nehru National Institute of Technology, Allahabad 211004, Uttar Pradesh, India.
| | - Mohammad Siraj Alam
- Department of Chemical Engineering, Motilal Nehru National Institute of Technology, Allahabad 211004, Uttar Pradesh, India
| | - Anu Singh
- Department of Chemistry, Motilal Nehru National Institute of Technology, Allahabad 211004, Uttar Pradesh, India
| | - Prabha Bhartiya
- Department of Chemistry, Motilal Nehru National Institute of Technology, Allahabad 211004, Uttar Pradesh, India
| | - P K Dutta
- Department of Chemistry, Motilal Nehru National Institute of Technology, Allahabad 211004, Uttar Pradesh, India.
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Anuradha, Layek S, Agrahari B, Pathak DD. Chitosan-Supported Copper(II) Schiff Base Complexes: Applications in Synthesis of 5-Substituted 1H-Tetrazoles and Oxidative Homo-Coupling of Terminal Alkynes. ChemistrySelect 2017. [DOI: 10.1002/slct.201701252] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Anuradha
- Department of Applied Chemistry; Indian Institute of Technology (ISM); Dhanbad- 826004, Jharkhand India
| | - Samaresh Layek
- Department of Applied Chemistry; Indian Institute of Technology (ISM); Dhanbad- 826004, Jharkhand India
| | - Bhumika Agrahari
- Department of Applied Chemistry; Indian Institute of Technology (ISM); Dhanbad- 826004, Jharkhand India
| | - Devendra Deo Pathak
- Department of Applied Chemistry; Indian Institute of Technology (ISM); Dhanbad- 826004, Jharkhand India
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Niu Y, Li K, Ying D, Wang Y, Jia J. Novel recyclable adsorbent for the removal of copper(II) and lead(II) from aqueous solution. BIORESOURCE TECHNOLOGY 2017; 229:63-68. [PMID: 28107723 DOI: 10.1016/j.biortech.2017.01.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 01/01/2017] [Accepted: 01/06/2017] [Indexed: 05/26/2023]
Abstract
Adsorbents synthesized with biopolymer have been widely used in the removal of toxic metal ions. Novel high-efficiency, recyclable, and low-cost adsorbents have received more and more attention. Chitosan and cellulose are the most abundant biopolymers in nature. Composite modified adsorbent (CSTEC) was synthesized as novel fibrous materials for the adsorption of Cu2+ and Pb2+ ions from water in this study. The functional fiber was characterized to investigate the surface appearance, functional groups, crystallinity, and thermal stability. The kinetics study revealed that adsorption processes of Cu2+ and Pb2+ ions on the CSTEC followed the second-order kinetics model. CSTEC showed better performance (Cu2+, 95.24; Pb2+, 144.93mgg-1) than most of other adsorbents. The co-existing ions (K+, Na+, Mg2+) had no significant influence on the removal of target ions by the CSTEC. The excellent reusability indicated that CSTEC had the promising application in the treatment of toxic metal pollution.
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Affiliation(s)
- Yaolan Niu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Kan Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China; School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Diwen Ying
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Yalin Wang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Jinping Jia
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
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23
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24
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Hefni HHH, Nagy M, Azab MM, Hussein MHM. Esterification of chitosan with L-alanine and a study on their effect in removing the heavy metals and total organic carbon (TOC) from wastewater. PURE APPL CHEM 2016. [DOI: 10.1515/pac-2016-0301] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractIn this work, chitosan was modified by the esterification with L-alanine in the presence of H2SO4 as a catalyst to increase the number of amino groups with the aim of increasing the adsorption efficiency. Chitosan (CS) and chitosan-O-alanine (CS-Aln) were characterized and investigated by elemental analysis, Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD). The results obtained from elemental analysis and IR indicated the presence of sulfuric acid after neutralization as a crosslinker between CS-Aln chains. Also CS-Aln is more amorphous than CS due to the ionic bonds of crosslinker. The removal of three heavy metals (Mn2+, Pb2+ and Al3+) and total organic carbon (TOC) from wastewater by CS and CS-Aln in the batch mode has been studied at different adsorbent dosages, temperatures and contact times. The maximum metal ions removal efficiency using CS achieved 99.6%, 99.1% and 98.9%, respectively, while by using CS-Aln 95.3%, 99.3% and 98.9% were achieved. However, the maximum adsorption capacity of TOC by CS achieved 50 mg/g and 89 mg/g by CS-Aln. The total maximum adsorption capacity of CS-Aln is higher than CS.
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Affiliation(s)
- Hassan H. H. Hefni
- 1Polymers Laboratory, Petrochemicals Department, Egyptian petroleum Research Institute (EPRI), Cairo, Egypt
| | - Mohammed Nagy
- 2Holding Company for water and wastewater in Menoufia, Menoufia, Egypt
| | - Mohammed M. Azab
- 3Chemistry Department, Faculty of Science, Banha University, Banha City, Egypt
| | - Mohammed H. M. Hussein
- 1Polymers Laboratory, Petrochemicals Department, Egyptian petroleum Research Institute (EPRI), Cairo, Egypt
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