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Wu Y, Ma L, Chen T, Chang K, Wang J. Reconnection of cysteine in reduced hair with alkylene dimaleates via thiol-Michael click chemistry. Int J Cosmet Sci 2024; 46:457-467. [PMID: 38224116 DOI: 10.1111/ics.12944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 12/06/2023] [Accepted: 12/09/2023] [Indexed: 01/16/2024]
Abstract
OBJECTIVES Conventional hair permanent waving (PW) and permanent straightening processes typically involve two steps: reduction, for breaking -S-S- bond in cystine into cysteine and oxidation for -S-S- bond reconnection. However, it is known that the hair incurs damage during the oxidation step. In this work, we proposed a novel strategy to reconnect reduced disulfide bonds in hair via the thiol-Michael click reaction, by using a symmetric Michael reagent. METHODS Virgin black Chinese hair was reduced using 8% wt thioglycolic acid and employed as model hair containing a high content of broken disulfide bonds. The reduced hair was treated with 1,4-n-butylene dimaleate. Raman spectroscopy and Fourier transform infrared spectroscopy (FT-IR) were used to verify the chemical changes occurred in untreated and treated hair fibre. Single-fibre mechanical properties and thermal properties of the hair were evaluated using tensile testing and differential scanning calorimetry (DSC), respectively. RESULTS The 1,4-n-butylene dimaleate could reconnect free thiol groups generated by disulfide bond reduction via thiol-Michael click reaction and significantly improve the mechanical strength of hair compared to that of the reduced hair. Secondary conformational resolution analysis of FT-IR results revealed that the content of α-helix structure could be restored after treatment with 1,4-n-butylene dimaleate. The intermolecular forces established by the newly generated C-S bonds compensate the broken disulfide bonds and enhance the fracture strength of the hair compared to that of reduced hair. Michael reagents of similar structure also showed similar performance in restoring the mechanical properties of reduced hair. CONCLUSIONS Our data suggest that 1,4-n-butylene dimaleate can restore the mechanical properties of reduced hair by reconnecting reduced disulfide bonds and restoring the secondary conformation of hair keratin.
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Affiliation(s)
- Yuwen Wu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, China
| | - Ling Ma
- Adolph Research and Innovation Laboratory, Guangzhou Degu Personal Care Products Co., Ltd., Guangzhou, China
| | - Timson Chen
- Adolph Research and Innovation Laboratory, Guangzhou Degu Personal Care Products Co., Ltd., Guangzhou, China
| | - Kuan Chang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, China
| | - Jing Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, China
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Ratzenböck K, Fischer SM, Slugovc C. Poly(ether)s derived from oxa-Michael polymerization: a comprehensive review. MONATSHEFTE FUR CHEMIE 2023. [DOI: 10.1007/s00706-023-03049-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
AbstractPoly(ether)s represent an important class of polymers and are typically formed by ring-opening polymerization, Williamson ether synthesis, or self-condensation of alcohols. The oxa-Michael reaction presents another method to form poly(ether)s with additional functional groups in the polymer backbone starting from di- or triols and electron deficient olefins such as acrylates, sulfones, or acrylamides. However, research on oxa-Michael polymerization is still limited. Herein, we outline the principles of the oxa-Michael polymerization and focus on the synthesis and preparation of poly(ether-sulfone)s, poly(ether-ester)s, poly(ether)s, and poly(ether-amide)s. Further, challenges as well as future perspectives of the oxa-Michael polymerization are discussed.
Graphical abstract
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Drogkaris V, Northrop BH. Byproducts formed During Thiol-Acrylate Reactions Promoted by Nucleophilic Aprotic Amines: Persistent or Reactive? Chempluschem 2020; 85:2466-2474. [PMID: 33201598 DOI: 10.1002/cplu.202000590] [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: 08/20/2020] [Revised: 10/28/2020] [Indexed: 11/11/2022]
Abstract
The nucleophile-initiated mechanism of thiol-Michael reactions naturally leads to the formation of undesired nucleophile byproducts. Three aza-Michael compounds representing nucleophile byproducts of thiol-acrylate reactions initiated by 4-dimethylaminopyridine (DMAP), 1-methylimidazole (MIM), and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) have been synthesized and their reactivity in the presence of thiolate has been investigated. Spectroscopic analysis shows that each nucleophile byproduct reacts with thiolate to produce a desired thiol-acrylate product along with liberated aprotic amines DMAP, MIM, or DBU, thus demonstrating that these byproducts are reactive rather than persistent. Density functional theoretical computations support experimental observations and predict that a β-elimination mechanism is favored for converting each nucleophile byproduct into a desired thiol-acrylate product, though an SN 2 process can be competitive (i. e. within <2.5 kcal/mol) in less polar solvents.
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Affiliation(s)
- Vasileios Drogkaris
- Department of Chemistry, Wesleyan University, 52 Lawn Avenue, Middletown, CT, 06459, USA
| | - Brian H Northrop
- Department of Chemistry, Wesleyan University, 52 Lawn Avenue, Middletown, CT, 06459, USA
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Liang X, Li X, Gao X, Zhang Y, Wei W, Liu X. Fabrication of unimolecular micelle-based nanomedicines from hyperbranched polymers containing both terminal and internal reactive groups. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122716] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Huang D, Wu D. Biodegradable dendrimers for drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 90:713-727. [PMID: 29853143 DOI: 10.1016/j.msec.2018.03.002] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 12/17/2017] [Accepted: 03/03/2018] [Indexed: 01/09/2023]
Abstract
Dendrimers, as a type of artificial polymers with unique structural features, have been extensively explored for their applications in biomedical fields, especially in drug delivery. However, one important concern about the most commonly used dendrimers exists - the nondegradability, which may cause side effects induced by the accumulation of synthetic polymers in cells or tissues. Therefore, biodegradable dendrimers incorporating biodegradability with merits of dendrimers such as well-defined architectures, copious internal cavities and surface functionalities, are much more promising for developing novel nontoxic drug carriers. Herein, we review the recent advances in design and synthesis of biodegradable dendrimers, as well as their applications in fabricating drug delivery systems, with the aim to provide researchers in the related fields a good understanding of biodegradable dendrimers for drug delivery.
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Affiliation(s)
- Da Huang
- College of Biological Science and Technology, Fuzhou University, Fuzhou 350116, China.; Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China..
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6
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Sugita H, Miyashita Y, Suzuki H, Takasugi S, Matsumura N, Yoshizawa M. Positive-tone photoresist consisting of a multifunctional acrylate resin that can be patterned after photo-crosslinking. J Appl Polym Sci 2018. [DOI: 10.1002/app.45871] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Hikaru Sugita
- Yokkaichi Research Center, JSR Corporation; 100 Kawajiri-cho, Yokkaichi Mie 510-8552 Japan
| | - Yuka Miyashita
- Yokkaichi Research Center, JSR Corporation; 100 Kawajiri-cho, Yokkaichi Mie 510-8552 Japan
| | - Hiroyuki Suzuki
- Yokkaichi Research Center, JSR Corporation; 100 Kawajiri-cho, Yokkaichi Mie 510-8552 Japan
| | - Shingo Takasugi
- Yokkaichi Research Center, JSR Corporation; 100 Kawajiri-cho, Yokkaichi Mie 510-8552 Japan
| | - Nobuji Matsumura
- Yokkaichi Research Center, JSR Corporation; 100 Kawajiri-cho, Yokkaichi Mie 510-8552 Japan
| | - Mitsuyo Yoshizawa
- Yokkaichi Research Center, JSR Corporation; 100 Kawajiri-cho, Yokkaichi Mie 510-8552 Japan
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Zhang Z, Zhou Y, Zhou Z, Piao Y, Kalva N, Liu X, Tang J, Shen Y. Synthesis of enzyme-responsive phosphoramidate dendrimers for cancer drug delivery. Polym Chem 2018. [DOI: 10.1039/c7py01492a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Enzyme-responsive phosphoramidate dendrimers were successfully synthesized and their surfaces were modified with zwitterionic groups for cancer drug delivery.
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Affiliation(s)
- Zhen Zhang
- Center for Bionanoengineering and State Key Laboratory for Chemical Engineering
- Department of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Yongcun Zhou
- Center for Bionanoengineering and State Key Laboratory for Chemical Engineering
- Department of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Zhuxian Zhou
- Center for Bionanoengineering and State Key Laboratory for Chemical Engineering
- Department of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Ying Piao
- Center for Bionanoengineering and State Key Laboratory for Chemical Engineering
- Department of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Nagendra Kalva
- Center for Bionanoengineering and State Key Laboratory for Chemical Engineering
- Department of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiangrui Liu
- Center for Bionanoengineering and State Key Laboratory for Chemical Engineering
- Department of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Jianbin Tang
- Center for Bionanoengineering and State Key Laboratory for Chemical Engineering
- Department of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Youqing Shen
- Center for Bionanoengineering and State Key Laboratory for Chemical Engineering
- Department of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
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Frayne SH, Murthy RR, Northrop BH. Investigation and Demonstration of Catalyst/Initiator-Driven Selectivity in Thiol-Michael Reactions. J Org Chem 2017; 82:7946-7956. [PMID: 28695735 DOI: 10.1021/acs.joc.7b01200] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Thiol-Michael "click" reactions are essential synthetic tools in the preparation of various materials including polymers, dendrimers, and other macromolecules. Despite increasing efforts to apply thiol-Michael chemistry in a controlled fashion, the selectivity of base- or nucleophile-promoted thiol-Michael reactions in complex mixtures of multiple thiols and/or acceptors remains largely unknown. Herein, we report a thorough fundamental study of the selectivity of thiol-Michael reactions through a series of 270 ternary reactions using 1H NMR spectroscopy to quantify product selectivity. The varying influences of different catalysts/initiators are explored using ternary reactions between two Michael acceptors and a single thiol or between a single Michael acceptor and two thiols using three different catalysts/initiators (triethylamine, DBU, and dimethylphenylphosphine) in chloroform. The results from the ternary reactions provide a platform from which sequential quaternary, one-pot quaternary, and sequential senary thiol-Michael reactions were designed and their selectivities quantified. These results provide insights into the design of selective thiol-Michael reactions that can be used for the synthesis and functionalization of multicomponent polymers and further informs how catalyst/initiator choice influences the reactivity between a given thiol and Michael acceptor.
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Affiliation(s)
- Stephen H Frayne
- Department of Chemistry, Wesleyan University , Middletown, Connecticut 06459, United States
| | - Raghavendra R Murthy
- Department of Chemistry, Wesleyan University , Middletown, Connecticut 06459, United States
| | - Brian H Northrop
- Department of Chemistry, Wesleyan University , Middletown, Connecticut 06459, United States
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Liu F, Zhang Y, Pan X, Xu L, Xue Y, Zhang W. Doxorubicin-loaded redox-responsive amphiphilic dendritic porphyrin conjugates for chemotherapy and photodynamic therapy. RSC Adv 2016. [DOI: 10.1039/c6ra09356f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The reduction-responsive dendritic copolymer (TPP-S-S-G3) was developed to construct a drug carrier for encapsulation of hydrophobic drug (DOX) for the combination treatment between chemotherapy and PDT.
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Affiliation(s)
- Feng Liu
- Shanghai Key Laboratory of Functional Materials Chemistry
- College of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yang Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry
- College of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Xiuwei Pan
- Shanghai Key Laboratory of Functional Materials Chemistry
- College of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Lei Xu
- Shanghai Key Laboratory of Functional Materials Chemistry
- College of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yudong Xue
- Shanghai Key Laboratory of Functional Materials Chemistry
- College of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Weian Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry
- College of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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Zhou Z, Tang J, Sun Q, Murdoch WJ, Shen Y. A multifunctional PEG–PLL drug conjugate forming redox-responsive nanoparticles for intracellular drug delivery. J Mater Chem B 2015; 3:7594-7603. [DOI: 10.1039/c5tb01027f] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Tumor-targeting camptothecin (CPT)-conjugated nanoparticles with high stability and GSH-triggered drug release were developed for cancer targeting drug delivery.
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Affiliation(s)
- Zhuxian Zhou
- Center for Bionanoengineering and State Key Laboratory for Chemical Engineering
- Department of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Jianbin Tang
- Center for Bionanoengineering and State Key Laboratory for Chemical Engineering
- Department of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Qihang Sun
- Department of Chemical and Petroleum Engineering
- University of Wyoming
- Laramie
- USA
| | | | - Youqing Shen
- Center for Bionanoengineering and State Key Laboratory for Chemical Engineering
- Department of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
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11
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Svenson S. The dendrimer paradox – high medical expectations but poor clinical translation. Chem Soc Rev 2015; 44:4131-44. [DOI: 10.1039/c5cs00288e] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review was written with the intention to critically evaluate the status of dendrimers as drug carriers and find answers as to why this class of compounds has not translated into the clinic despite 40 years of research.
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12
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Auty SER, Andrén O, Malkoch M, Rannard SP. The first peripherally masked thiol dendrimers: a facile and highly efficient functionalization strategy of polyester dendrimers via one-pot xanthate deprotection/thiol–acrylate Michael addition reactions. Chem Commun (Camb) 2014; 50:6574-7. [DOI: 10.1039/c3cc49704f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present the first xanthate surface functional dendrimers which undergo rapid one-pot deprotection to thiols and subsequent acrylate Michael addition .
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Affiliation(s)
- Sam E R Auty
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK.
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13
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Chen W, Zhang JZ, Hu J, Guo Q, Yang D. Preparation of amphiphilic copolymers for covalent loading of paclitaxel for drug delivery system. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.27009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Wulian Chen
- State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; Shanghai 200433 China
| | - Jin Z. Zhang
- Department of Chemistry and Biochemistry; University of California; Santa Cruz California 95064
| | - Jianhua Hu
- State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; Shanghai 200433 China
- Key Laboratory of Smart Drug Delivery, Ministry of Education and PLA, Fudan University; Shanghai 201203 China
| | - Qisang Guo
- Mdical Center for Diagnostics & Treat of Cervical Disease, Obstetrics and Gynecology Hospital, Fudan University; Shanghai 200011 China
| | - Dong Yang
- State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; Shanghai 200433 China
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