1
|
Yang T, Liu Y, Chen J, Liu J, Jiang S, Zhang X, Ji C. Synthesis of ultrathin hybrid membranes via the co-polymerization of acrylic acid, styrene and molybdenum disulfide and their high adsorption selectivity for lead(II) in the mixture of metal ions. Environ Pollut 2024; 350:124019. [PMID: 38663506 DOI: 10.1016/j.envpol.2024.124019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/15/2024] [Accepted: 04/19/2024] [Indexed: 04/29/2024]
Abstract
Lead(II) is a potential carcinogen of heavy-metal ions (HIs). With the wide application of Pb-bearing products including lead alloy products, and new-energy lead-ion batteries, lead pollution has become a tricky problem. To solve such a difficulty, novel ultrathin MoS2-vinyl hybrid membranes (MVHMs) with a "spring" effect were synthesized via co-polymerization of acrylic acid, styrene and molybdenum disulfide (MoS2) and their adsorptions for HIs were explored. The "spring" effect derived from the interaction between the tendency of the short polyacrylic acid (PAA) chain connected with MoS2 to spread outward and the coulomb force between layers from MoS2 (s-MoS2), which enlarge the spacing of MoS2 layers without changing the number of layers after membrane formation, which changes the swelling membrane to a dense membrane and reduces the original thickness from 0.5 cm to 0.011 mm in the thickness direction. The adsorption experiment revealed that these MVHMs had super adsorption performance and high selectivity for Pb2+ by comparison with other five metal ions: Cu2+, Cd2+, Ni2+, Cr3+ and Zn2+. Especially, the adsorption quantity of MVHMs for Pb2+ could approach 2468 mg/g and the maximum adsorption ratio of qe[Pb2+]/qe[Cu2+] can reach 10.909. These values were much larger than the data obtained with the adsorbents reported in the last decade. A variety of models are applied to evaluate the effect of ionic groups. It was confirmed that -COOH plays a key role in adsorption of HIs and s-MoS2 also has a certain contribution. Conversely, ion exchange plays only a minor role during the period of adsorption process. Effective diffusion coefficient (Deff) of Pb(II) had the largest values among these metal ions. Hence, these hybrid membranes are promising adsorbents for the removal of Pb2+ from water containing various ions.
Collapse
Affiliation(s)
- Tianrui Yang
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiu Road, Hefei, 230601, China
| | - Yu Liu
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiu Road, Hefei, 230601, China
| | - Jingyi Chen
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiu Road, Hefei, 230601, China
| | - Junsheng Liu
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiu Road, Hefei, 230601, China.
| | - Shan Jiang
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiu Road, Hefei, 230601, China
| | - Xiaoxue Zhang
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiu Road, Hefei, 230601, China
| | - Chunyu Ji
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiu Road, Hefei, 230601, China
| |
Collapse
|
2
|
Gholap AD, Pardeshi SR, Hatvate NT, Dhorkule N, Sayyad SF, Faiyazuddin M, Khalid M. Environmental implications and nanotechnological advances in octocrylene-enriched sunscreen formulations: A comprehensive review. Chemosphere 2024; 358:142235. [PMID: 38705416 DOI: 10.1016/j.chemosphere.2024.142235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 04/30/2024] [Accepted: 05/02/2024] [Indexed: 05/07/2024]
Abstract
Ultraviolet (UV) radiation is a major contributor to skin aging, cancer, and other detrimental health effects. Sunscreens containing FDA-approved UV filters, like avobenzone, offer protection but suffer from photodegradation and potential phototoxicity. Encapsulation, antioxidants, and photostabilizers are strategies employed to combat these drawbacks. Octocrylene, an organic UV filter, utilizes nanotechnology to enhance sun protection factor (SPF). This review examines recent literature on octocrylene-enriched sunscreens, exploring the interplay between environmental impact, nanotechnological advancements, and clinical trial insights. A critical focus is placed on the environmental consequences of sunscreen use, particularly the potential hazards UV filters pose to marine ecosystems. Research in the Mediterranean Sea suggests bacterial sensitivity to these filters, raising concerns about their integration into the food chain. This review aims to guide researchers in developing effective strategies for photostabilization of UV filters. By combining encapsulation, photostabilizers, and antioxidants, researchers can potentially reduce phototoxic effects and contribute to developing more environmentally friendly sunscreens.
Collapse
Affiliation(s)
- Amol D Gholap
- St. John Institute of Pharmacy and Research, Palghar, 401404, Maharashtra, India; Department of Pharmaceutics, Amrutvahini College of Pharmacy, Sangamner, 422608, Maharashtra, India
| | - Sagar R Pardeshi
- St. John Institute of Pharmacy and Research, Palghar, 401404, Maharashtra, India
| | - Navnath T Hatvate
- Institute of Chemical Technology, Marathwada Campus, Jalna, Maharashtra, 431203, India
| | - Nilesh Dhorkule
- St. John Institute of Pharmacy and Research, Palghar, 401404, Maharashtra, India
| | - Sadikali F Sayyad
- Department of Pharmaceutics, Amrutvahini College of Pharmacy, Sangamner, 422608, Maharashtra, India.
| | - Md Faiyazuddin
- School of Pharmacy, Al-Karim University, Katihar, Bihar, 854106, India; Centre for Global Health Research, Saveetha Institute of Medical and Technical Sciences, Tamil Nadu, India.
| | - Mohammad Khalid
- Sunway Centre for Electrochemical Energy and Sustainable Technology (SCEEST), School of Engineering and Technology, Sunway University, No. 5, Jalan University, Bandar Sunway, 47500, Petaling Jaya, Selangor, Malaysia; Centre of Research Impact and Outcome, Chitkara University, Punjab, 140401 India; Chitkara Centre for Research and Development, Chitkara University, Himachal Pradesh 174103, India.
| |
Collapse
|
3
|
Yu K, Huan WW, Teng HJ, Guo JZ, Li B. Effect of oxygen-containing functional group contents on sorption of lead ions by acrylate-functionalized hydrochar. Environ Pollut 2024; 349:123921. [PMID: 38574948 DOI: 10.1016/j.envpol.2024.123921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/06/2024]
Abstract
The surface functional groups of hydrochar are crucial to its surface properties, and their contents are strongly positively correlated with the adsorption performance. In this study, acrylate-functionalized hydrochar (AHC) with varying contents of O-containing functional groups (OFGs) was synthesized via hydrothermal carbonization (HTC) of bamboo, acrylic acid and an initiator, and then deprotonated with NaOH. The AHCs were analyzed by various characterization techniques. During HTC, the higher amount of acrylic acid added led to higher carbon, oxygen and carboxyl contents, and to the larger specific surface area and pore volume of AHC. The adsorption kinetics, isotherms, thermodynamic, ionic strength and pH effects of Pb(II) on AHC were studied. Adsorption isotherms and kinetics obeyed Langmuir and pseudo-second-order models, respectively, indicating adsorption is monolayer chemical process. The adsorptive ability was well linearly related to the OFG contents of AHC. When acrylic acid was added to 25 mL during HTC, the adsorbing ability of AHC over Pb(II) reached 193.90 mg g-1. Hence, direct HTC of acrylic acid, biomass and an initiator can prepare hydrochar with controllable OFG contents, which is a prospective adsorbent for treating metal cations.
Collapse
Affiliation(s)
- Kun Yu
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, PR China
| | - Wei-Wei Huan
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, PR China
| | - Hua-Jing Teng
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, PR China
| | - Jian-Zhong Guo
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, PR China
| | - Bing Li
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, PR China.
| |
Collapse
|
4
|
Kim K, Nguyen D, Strong J, Dadashi-Silab S, Sun M, Dau H, Keyes A, Yin R, Harth E, Matyjaszewski K. Block Copolymers of Polyolefins with Polyacrylates: Analyzing and Improving the Blocking Efficiencies Using MILRad/ATRP Approach. Macromol Rapid Commun 2024; 45:e2300675. [PMID: 38163327 DOI: 10.1002/marc.202300675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/19/2023] [Indexed: 01/03/2024]
Abstract
Despite their industrial ubiquity, polyolefin-polyacrylate block copolymers are challenging to synthesize due to the distinct polymerization pathways necessary for respective blocks. This study utilizes MILRad, metal-organic insertion light-initiated radical polymerization, to synthesize polyolefin-b-poly(methyl acrylate) copolymer by combining palladium-catalyzed insertion-coordination polymerization and atom transfer radical polymerization (ATRP). Brookhart-type Pd complexes used for the living polymerization of olefins are homolytically cleaved by blue-light irradiation, generating polyolefin-based macroradicals, which are trapped with functional nitroxide derivatives forming ATRP macroinitiators. ATRP in the presence of Cu(0), that is, supplemental activators and reducing agents , is used to polymerize methyl acrylate. An increase in the functionalization efficiency of up to 71% is demonstrated in this study by modifying the light source and optimizing the radical trapping condition. Regardless of the radical trapping efficiency, essentially quantitative chain extension of polyolefin-Br macroinitiator with acrylates is consistently demonstrated, indicating successful second block formation.
Collapse
Affiliation(s)
- Khidong Kim
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Dung Nguyen
- Department of Chemistry, Center of Excellence in Polymer Chemistry (CEPC), University of Houston, Houston, TX, 77204, USA
| | - Jacobo Strong
- Department of Chemistry, Center of Excellence in Polymer Chemistry (CEPC), University of Houston, Houston, TX, 77204, USA
| | | | - Mingkang Sun
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Huong Dau
- Department of Chemistry, Center of Excellence in Polymer Chemistry (CEPC), University of Houston, Houston, TX, 77204, USA
| | - Anthony Keyes
- Department of Chemistry, Center of Excellence in Polymer Chemistry (CEPC), University of Houston, Houston, TX, 77204, USA
| | - Rongguan Yin
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Eva Harth
- Department of Chemistry, Center of Excellence in Polymer Chemistry (CEPC), University of Houston, Houston, TX, 77204, USA
| | | |
Collapse
|
5
|
Liu H, Guo L, Dai Y, Li M, Wang D, Li Y, Qi H. Facile fabrication of cellulose-based hydrophobic paper via Michael addition reaction. Int J Biol Macromol 2023; 253:127513. [PMID: 37865371 DOI: 10.1016/j.ijbiomac.2023.127513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/27/2023] [Accepted: 10/10/2023] [Indexed: 10/23/2023]
Abstract
The inherent highly hydrophilic feature of cellulose-based paper hinders its application in many fields. Herein, a cellulose-based hydrophobic paper was fabricated based on surface chemical modification. Firstly, the hydrophobic acrylate components were bonded to the cellulose acetoacetate (CAA) fibers to obtain CAA graft acrylate (CAA-X) fibers through Michael addition reaction. Subsequently, CAA-X fibers were processed into paper via wet papermaking technology. The resulting paper exhibited good hydrophobic performance (water contact angle was up to 135°) with an air permeability of 24.8 μm/Pa·s. The hydrophobicity of paper was very stable and remained even after treating with different solvents. Moreover, the hydrophobic properties of this paper could be adjusted by changing the type of acrylate component. It should be noted that the surface modification strategy has no obvious effects on the whiteness (79.8%), writing, and printing properties of the cellulose fibers. Thus, it is a simple, benign, and efficient strategy for the construction of cellulose-based hydrophobic paper, which has great potential to be used in paper tableware, oil-water separation, watercolor protection, and food packaging fields.
Collapse
Affiliation(s)
- Hongchen Liu
- College of Textiles, Zhongyuan University of Technology, Zhengzhou 450007, China.
| | - Lei Guo
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China
| | - Yamin Dai
- College of Textiles, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Mengya Li
- Faculty of Engineering, Huanghe Science and Technology College, Zhengzhou 450063, China
| | - Dongwei Wang
- College of Textiles, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Yun Li
- Guangdong Yunzhao Medical Technology Co., Ltd., Guangzhou 510641, China
| | - Haisong Qi
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China.
| |
Collapse
|
6
|
Deng Y, Li C, Fan J, Guo X. Photo Fenton RAFT Polymerization of (Meth)Acrylates in DMSO Sensitized by Methylene Blue. Macromol Rapid Commun 2023; 44:e2300258. [PMID: 37496370 DOI: 10.1002/marc.202300258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/28/2023] [Indexed: 07/28/2023]
Abstract
A novel open-to-air photo RAFT polymerization of a series of acrylate and methacrylate monomers mediated by matching chain transfer agent irradiated by far-red light in DMSO is reported. Hydroxyl radical (•OH) generated from methylene blue (MB) sensitized decomposition of H2 O2 via photo-Fenton like-reaction is used for polymerization initiation. The "living/control" characteristic is evidenced by kinetic study, in which a pseudo first order curve and linearly increases of molecular weight with the increase of monomer conversion are observed. The living end-group fidelity is characterized by MALDI-TOF-MS and 1 H NMR results, and confirmed by successful chain extension. The temporary controllability is proved by light on/off switch experiment.
Collapse
Affiliation(s)
- Yuanming Deng
- Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Cuiting Li
- Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Jiangtao Fan
- Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Xie Guo
- Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| |
Collapse
|
7
|
Grey EL, McClendon J, Suresh J, Alper S, Janssen WJ, Bryant SJ. Thiol-Michael Addition Microparticles: Their Synthesis, Characterization, and Uptake by Macrophages. ACS Biomater Sci Eng 2023; 9:4223-4240. [PMID: 37379254 PMCID: PMC10619202 DOI: 10.1021/acsbiomaterials.3c00441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
Polymeric microparticles are promising biomaterial platforms for targeting macrophages in the treatment of disease. This study investigates microparticles formed by a thiol-Michael addition step-growth polymerization reaction with tunable physiochemical properties and their uptake by macrophages. The hexafunctional thiol monomer dipentaerythritol hexa-3-mercaptopropionate (DPHMP) and tetrafunctional acrylate monomer di(trimethylolpropane) tetraacrylate (DTPTA) were reacted in a stepwise dispersion polymerization, achieving tunable monodisperse particles over a size range (1-10 μm) relevant for targeting macrophages. An off-stoichiometry thiol-acrylate reaction afforded facile secondary chemical functionalization to create particles with different chemical moieties. Uptake of the microparticles by RAW 264.7 macrophages was highly dependent on treatment time, particle size, and particle chemistry with amide, carboxyl, and thiol terminal chemistries. The amide-terminated particles were non-inflammatory, while the carboxyl- and thiol-terminated particles induced pro-inflammatory cytokine production in conjunction with particle phagocytosis. Finally, a lung-specific application was explored through time-dependent uptake of amide-terminated particles by human alveolar macrophages in vitro and mouse lungs in vivo without inducing inflammation. The findings demonstrate a promising microparticulate delivery vehicle that is cyto-compatible, is non-inflammatory, and exhibits high rates of uptake by macrophages.
Collapse
Affiliation(s)
- Emerson L. Grey
- Department of Chemical and Biological Engineering, University of Colorado, 3415 Colorado Ave, Boulder, CO 80309-0596, USA
| | - Jazalle McClendon
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
| | - Joshita Suresh
- Department of Chemical and Biological Engineering, University of Colorado, 3415 Colorado Ave, Boulder, CO 80309-0596, USA
| | - Scott Alper
- Department of Immunology and Genomic Medicine, Center for Genes, Environment and Health, National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
| | - William J. Janssen
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
- Department of Medicine, University of Colorado Anschutz Medical Campus, 12631 East 17th Avenue, Aurora, CO 80045, USA
| | - Stephanie J. Bryant
- Department of Chemical and Biological Engineering, University of Colorado, 3415 Colorado Ave, Boulder, CO 80309-0596, USA
- Materials Science & Engineering Program, University of Colorado, 4001 Discovery Dr, Boulder, CO 80309-0613, USA
- BioFrontiers Institute, University of Colorado, 3415 Colorado Ave, Boulder, CO 80309-0596, USA
| |
Collapse
|
8
|
Neequaye T, El Rassi Z. Poly(carboxyethyl acrylate-co-ethylene glycol dimethacrylate) precursor monolith with bonded (S)-(-)-1-(2-naphthyl) ethylamine ligands for use in chiral and achiral separations by capillary electrochromatography. J Chromatogr A 2023; 1688:463713. [PMID: 36535112 DOI: 10.1016/j.chroma.2022.463713] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/26/2022] [Accepted: 12/10/2022] [Indexed: 12/14/2022]
Abstract
In this research report, the previously developed poly(carboxyethyl acrylate-co-ethylene glycol dimethacrylate) precursor monolith (referred to as carboxy monolith) is further exploited in the preparation of a chiral stationary phase for enantiomeric separations. The carboxy monolith precursor was subjected to post polymerization functionalization (PPF) with the chiral selector (S)-(-)-1-(2-naphthyl) ethylamine (NAS) at room temperature in the presence of N, N´-dicyclohexylcarbodiimide (DCC) in chloroform. The DCC, which is an organic soluble carbodiimide, permits the linkage for the amine functionality of the chiral ligand NAS to the carboxy group of the monolithic surface forming a stable amide linkage. The NAS column thus obtained allowed not only enantiomeric separations in the RP mode via its chiral site but also the separation of nonpolar species via its achiral functionality offering both hydrophobic and π-π interactions for aromatic compounds such toluene derivatives and polyaromatic hydrocarbons. The dual interaction sites (e.g., chiral, and achiral) of the NAS present a convenient column for the separations of slightly polar and nonpolar chiral and achiral solutes in the RP mode.
Collapse
Affiliation(s)
- Theophilus Neequaye
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078, United States
| | - Ziad El Rassi
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078, United States.
| |
Collapse
|
9
|
Ametsetor E, Farthing S, Bunce RA. Domino Aza-Michael-SNAr-Heteroaromatization Route to C5-Substituted 1-Alkyl-1H-Indole-3-Carboxylic Esters. Molecules 2022; 27:molecules27206998. [PMID: 36296590 PMCID: PMC9611145 DOI: 10.3390/molecules27206998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 11/16/2022] Open
Abstract
A new synthesis of C5-substituted 1-alkyl-1H-indole-3-carboxylic esters is reported. A series of methyl 2-arylacrylate aza-Michael acceptors were prepared with aromatic substitution to activate them towards SNAr reaction. Subsequent reaction with a series of primary amines generated the title compounds. Initially, the sequence was expected to produce indoline products, but oxidative heteroaromatization intervened to generate the indoles. The reaction proceeded under anhydrous conditions in DMF at 23–90 °C using equimolar quantities of the acrylate and the amine with 2 equiv. of K2CO3 to give 61–92% of the indole products. The reaction involves an aza-Michael addition, followed by SNAr ring closure and heteroaromatization. Since the reactions were run under nitrogen, the final oxidation to the indole likely results from reaction with dissolved oxygen in the DMF. Substrates incorporating a 2-arylacrylonitrile proved too reactive to prepare using our protocol. The synthesis of the reaction substrates, their relative reactivities, and mechanistic details of the conversion are discussed.
Collapse
|
10
|
Neequaye T, El Rassi Z. Poly(carboxyethyl acrylate-co-ethylene glycol dimethacrylate) precursor monolith with bonded anthracenyl ligands for use in reversed-phase capillary electrochromatography based on hydrophobic and π-π interactions. J Chromatogr A 2022; 1682:463526. [PMID: 36166884 DOI: 10.1016/j.chroma.2022.463526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 11/18/2022]
Abstract
In this research report, the post polymerization functionalization (PPF) of a carboxyethyl acrylate (CEA)-co-ethylene glycol dimethacrylate (EDMA) [poly-CEA-co-EDMA)] precursor monolith with 2-aminoanthracene was carried out in the presence of an organic solvent soluble carbodiimide, namely N,N´-dicyclohexylcarbodiimide (DCC), yielding the so-called anthracenyl-poly-CEA-co-EDMA monolith. This novel monolith proved to be an excellent monolithic stationary for reversed-phase capillary electrochromatography (RP-CEC) with hydrophobic and π-π interactions of a wide range of nonpolar solutes including those bearing aryl functional groups in their structures such as polycyclic aromatic hydrocarbons (PAHs), toluene derivatives and aniline derivatives as well as solutes carrying in their structures electron withdrawing substituents such as dinitrophenyl-amino acids (DNP-AAs) and di-DNP-AAs. The retention behaviors of the just mentioned solutes obtained on the anthracenyl-poly-CEA-co-EDMA monolithic column were compared to those obtained on octadecyl-poly-CEA-co-EDMA monolithic column prepared from the same carboxy-precursor monolith. The results demonstrated the superiority of anthracenyl column over the octadecyl column for the separation and enhanced selectivity for aromatic solutes since it provides not only hydrophobic interactions but also π-π interactions with aromatic nonpolar solutes.
Collapse
Affiliation(s)
- Theophilus Neequaye
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078, USA
| | - Ziad El Rassi
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078, USA.
| |
Collapse
|
11
|
Jennings J, Webster-Aikman RR, Ward-O’Brien N, Xie A, Beattie DL, Deane OJ, Armes SP, Ryan AJ. Hydrocarbon-Based Statistical Copolymers Outperform Block Copolymers for Stabilization of Ethanol-Water Foams. ACS Appl Mater Interfaces 2022; 14:39548-39559. [PMID: 35984897 PMCID: PMC9437873 DOI: 10.1021/acsami.2c09910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Well-defined block copolymers have been widely used as emulsifiers, stabilizers, and dispersants in the chemical industry for at least 50 years. In contrast, nature employs amphiphilic proteins as polymeric surfactants whereby the spatial distribution of hydrophilic and hydrophobic amino acids within the polypeptide chains is optimized for surface activity. Herein, we report that polydisperse statistical copolymers prepared by conventional free-radical copolymerization can provide superior foaming performance compared to the analogous diblock copolymers. A series of predominantly (meth)acrylic comonomers are screened to identify optimal surface activity for foam stabilization of aqueous ethanol solutions. In particular, all-acrylic statistical copolymers comprising trimethylhexyl acrylate and poly(ethylene glycol) acrylate, P(TMHA-stat-PEGA), confer strong foamability and also lower the surface tension of a range of ethanol-water mixtures to a greater extent than the analogous block copolymers. For ethanol-rich hand sanitizer formulations, foam stabilization is normally achieved using environmentally persistent silicone-based copolymers or fluorinated surfactants. Herein, the best-performing fully hydrocarbon-based copolymer surfactants effectively stabilize ethanol-rich foams by a mechanism that resembles that of naturally-occurring proteins. This ability to reduce the surface tension of low-surface-energy liquids suggests a wide range of potential commercial applications.
Collapse
|
12
|
Sun Y, Liu L, Li M, Xu F, Yu W. Theoretical evidence for the formation of perfluorocarboxylic acids form atmospheric oxidation degradation of fluorotelomer acrylates. Environ Sci Pollut Res Int 2022; 29:55092-55104. [PMID: 35312922 DOI: 10.1007/s11356-022-19788-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
The atmospheric oxidation degradation of fluorotelomer acrylates (FTAcs) has been proposed as a potential source of perfluorocarboxylic acids (PFCAs) in remote locations. In this paper, detailed reactions of the main oxidant OH radicals with 4:2 FTAc in the atmosphere have been investigated by using density functional theory (DFT) calculation. All possible pathways involved in the oxidation process were presented and discussed. Based on the mechanism, transition state theory (TST) was used to predict the rate constants of the key elementary steps including the initial reactions of OH radical with n:2 FTAcs and the subsequent reactions of the main intermediates. Studies show that the reaction processes of OH radical addition to C = C bond are dominant and the fluorotelomer glyoxylate and formaldehyde are the major products. At 296 K, the calculated overall rate constant of 4:2 FTAc with OH radical is 1.19 × 10-11 cm3 molecule-1 s-1 with an atmospheric lifetime of 23.3 h. In the atmosphere, fluorotelomer glyoxylate will continue to be oxidized, which will lead to the formation of PFCAs ultimately. In addition, atmospheric reactions of more carbons FTAc (CnF2n+1CH2CH2OC(O)CH = CH2, n = 6, 8, 10) are also discussed in the presence of O2/NOx.
Collapse
Affiliation(s)
- Yanhui Sun
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China.
| | - Lin Liu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China
| | - Ming Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China
| | - Fei Xu
- Environment Research Institute, Shandong University, Qingdao, 266237, People's Republic of China
| | - Wanni Yu
- Shandong Provincial Key Laboratory of Water and Soil Conservation and Environmental Protection, College of Resources and Environment, Linyi University, Linyi, 276005, People's Republic of China
| |
Collapse
|
13
|
Shrestha B, Ezazi M, Rad V, Maharjan A, Kwon G. Frost Delay of a Water-Absorbing Surface with Engineered Wettability via Nonfreezing Water. Langmuir 2022; 38:5787-5794. [PMID: 35446585 DOI: 10.1021/acs.langmuir.2c00369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Frost is common when a solid surface is subjected to a humid and cold environment. It can cause various inconveniences, complications, or fatal accidents. Water-repellent surfaces have demonstrated an antifreezing capability by enabling the water droplets to roll or bounce off before they freeze. However, these surfaces are often limited by their inability to shed the small water condensates, which can eventually grow and freeze. Recently, surfaces that can rapidly absorb and hydrogen bond with these water condensates have demonstrated significant delay in frost formation and growth. This is attributed to a lower freezing temperature of the absorbed water which makes it stay in a nonfreezing state. Herein, we report a surface with preferential wettability of water over oil (i.e., superhydrophilic and oleophobic wettability) that can significantly delay frost formation. The surface is fabricated by copolymerizing poly(ethylene glycol) diacrylate (PEGDA) and perfluorinated acrylate (1H,1H,2H,2H-heptadecafluorodecyl acrylate, HDF-acrylate) applied to a silane-grafted glass substrate (HDF-PEGDA). An HDF-PEGDA surface can quickly absorb condensed water which enables it to delay frost formation and growth for up to 20 min at a surface temperature of -35 °C. Also, the surface demonstrates that its frost-resistant capability remains almost unaffected even after being submerged in an oil bath due to its in-air oil repellency. Differential scanning calorimetry (DSC) measurements reveal that the significant quantity of absorbed water in an HDF-PEGDA surface remains in a nonfreezing state with a Tm value as low as -33 °C. A mathematical model that can predict the time at which the surface begins to be covered with frost is developed. Finally, an HDF-PEGDA is layered with a PEGDA copolymerized with sodium acrylate (Na-acrylate) that enables the continuous release of the absorbed water by posing forward osmotic pressure and regeneration of an HDF-PEGDA surface.
Collapse
Affiliation(s)
- Bishwash Shrestha
- Department of Mechanical Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Mohammadamin Ezazi
- Department of Mechanical Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Vahid Rad
- Department of Mechanical Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Anjana Maharjan
- Department of Mechanical Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Gibum Kwon
- Department of Mechanical Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| |
Collapse
|
14
|
Kokkala P, Voreakos K, Lelis A, Patiniotis K, Skoulikas N, Devel L, Ziotopoulou A, Kaloumenou E, Georgiadis D. Practical Synthesis of Phosphinic Dipeptides by Tandem Esterification of Aminophosphinic and Acrylic Acids under Silylating Conditions. Molecules 2022; 27:molecules27041242. [PMID: 35209031 PMCID: PMC8876710 DOI: 10.3390/molecules27041242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 11/16/2022] Open
Abstract
In this report, a synthetic protocol for the preparation of phosphinic dipeptides of type 5 is presented. These compounds serve as valuable building blocks for the development of highly potent phosphinopeptidic inhibitors of medicinally relevant Zn-metalloproteases and aspartyl proteases. The proposed method is based on the tandem esterification of α-aminophosphinic and acrylic acids under silylating conditions in order to subsequently participate in a P-Michael reaction. The scope of the transformation was investigated by using a diverse set of readily available acrylic acids and (R)-α-aminophosphinic acids, and high yields were achieved in all cases. In most examples reported herein, the isolation of biologically relevant (R,S)-diastereoisomers became possible by simple crystallization from the crude products, thus enhancing the operational simplicity of the proposed method. Finally, functional groups corresponding to acidic or basic natural amino acids are also compatible with the reaction conditions. Based on the above, we expect that the practicality of the proposed protocol will facilitate the discovery of pharmacologically useful bioactive phosphinic peptides.
Collapse
Affiliation(s)
- Paraskevi Kokkala
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15784 Athens, Greece; (P.K.); (K.V.); (A.L.); (K.P.); (N.S.); (A.Z.); (E.K.)
| | - Kostas Voreakos
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15784 Athens, Greece; (P.K.); (K.V.); (A.L.); (K.P.); (N.S.); (A.Z.); (E.K.)
| | - Angelos Lelis
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15784 Athens, Greece; (P.K.); (K.V.); (A.L.); (K.P.); (N.S.); (A.Z.); (E.K.)
| | - Konstantinos Patiniotis
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15784 Athens, Greece; (P.K.); (K.V.); (A.L.); (K.P.); (N.S.); (A.Z.); (E.K.)
| | - Nikolaos Skoulikas
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15784 Athens, Greece; (P.K.); (K.V.); (A.L.); (K.P.); (N.S.); (A.Z.); (E.K.)
| | - Laurent Devel
- Département Médicaments et Technologies pour la Santé (DMTS), CEA, INRAE, SIMoS, Université Paris-Saclay, 91191 Gif-sur-Yvette, France;
| | - Angeliki Ziotopoulou
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15784 Athens, Greece; (P.K.); (K.V.); (A.L.); (K.P.); (N.S.); (A.Z.); (E.K.)
| | - Eleni Kaloumenou
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15784 Athens, Greece; (P.K.); (K.V.); (A.L.); (K.P.); (N.S.); (A.Z.); (E.K.)
| | - Dimitris Georgiadis
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15784 Athens, Greece; (P.K.); (K.V.); (A.L.); (K.P.); (N.S.); (A.Z.); (E.K.)
- Correspondence: ; Tel.: +30-2107274903
| |
Collapse
|
15
|
Muhammad N, Sarfraz Z, Zafar MS, Liaqat S, Rahim A, Ahmad P, Alsubaie A, Almalki ASA, Khandaker MU. Characterization of various acrylate based artificial teeth for denture fabrication. J Mater Sci Mater Med 2022; 33:17. [PMID: 35072817 PMCID: PMC8786782 DOI: 10.1007/s10856-022-06645-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 01/05/2022] [Indexed: 06/01/2023]
Abstract
Acrylic resins-based artificial teeth are frequently used for the fabrication of dentures has and contribute a very strong share in the global market. However, the scientific literature reporting the comparative analysis data of various artificial teeth is scarce. Focusing on that, the present study investigated various types of commercially available artificial teeth, composed of polymethyl methacrylate (PMMA). Artificial teeth are characterized for chemical analysis, morphological features, thermal analysis, and mechanical properties (surface hardness, compressive strength). Different types of artificial teeth showed distinct mechanical (compression strength, Vickers hardness) and thermal properties (thermal gravimetric analysis) which may be attributed to the difference in the content of PMMA and type and quantity of different fillers in their composition. Thermogravimetric analysis (TGA) results exhibited that vinyl end groups of PMMA degraded above 200 °C, whereas 340-400 °C maximum degradation temperature was measured by differential thermal analysis (DTA) for all samples. Crisma brand showed the highest compressive strength and young modulus (88.6 MPa and 1654 MPa) while the lowest value of Vickers hardness was demonstrated by Pigeon and Vital brands. Scanning electron microscope (SEM) photographs showed that Crisma, Pigeon, and Vital exhibited characteristics of a brittle fracture; however, Artis and Well bite brands contained elongated voids on their surfaces. According to the mechanical analysis and SEM data, Well bite teeth showed a significantly higher mechanical strength compared to other groups. However, no considerable difference was observed in Vickers hardness of all groups. Graphical abstract.
Collapse
Affiliation(s)
- Nawshad Muhammad
- Department of Dental Materials, Institute of Basic Medical Sciences, Khyber Medical University, Peshawar, 26100, Pakistan.
| | - Zenab Sarfraz
- Department of Dental Materials, Akhtar Saeed Medical and Dental College, Lahore, 54600, Pakistan
| | - Muhammad Sohail Zafar
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah, Al Munawwarah, 41311, Saudi Arabia
| | - Saad Liaqat
- Department of Dental Materials, Institute of Basic Medical Sciences, Khyber Medical University, Peshawar, 26100, Pakistan
| | - Abdur Rahim
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM) COMSATS University Islamabad, Lahore Campus, Lahore, 54600, Pakistan
| | - Pervaiz Ahmad
- Department of Physics, University of Azad Jammu and Kashmir, Muzaffarabad, 13100, Pakistan
| | - Abdullah Alsubaie
- Department of Physics, College of Khurma, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | | | - Mayeen Uddin Khandaker
- Center for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, 47500, Bandar Sunway, Selangor, Malaysia
| |
Collapse
|
16
|
Badhwar R, Mangla B, Neupane YR, Khanna K, Popli H. Quercetin loaded silver nanoparticles in hydrogel matrices for diabetic wound healing. Nanotechnology 2021; 32:505102. [PMID: 34500444 DOI: 10.1088/1361-6528/ac2536] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
Quercetin (QCT) is an effective antioxidant, antifibrotic and wound healing agent. Silver nanoparticles (AgNPs) are an effective antimicrobial, antifungal and wound healing agent and considered as gold standard for wound treatment especially diabetic and burn wounds. The present study aimed to investigate QCT loaded AgNPs in hydrogel matrices (QCT-AgNPs hydrogel) as synergistic treatment paradigms for diabetic wound. Quality by Design approach was employed for the optimization of hydrogel preparation using carbopol-934 andaloevera.The developed QCT-AgNPs hydrogel was characterized for hydrodynamic diameter, %entrapment efficiency (%EE), surface morphology, texture analysis,in-vitrodrug release, skin irritation study,ex-vivopermeation study (confocal study), and antimicrobial efficacy. The optimized formulation showed hydrodynamic diameter of ∼44.1 nm with smooth spherical surface morphology and ∼92.09% of QCT was entrapped in QCT-AgNPs hydrogel matrices. The antimicrobial study revealed superior therapeutic efficacy of QCT-AgNPs hydrogel in comparison to marketed (MRKT) gel onS. aureusandE. coli. Moreover,in-vivoresults demonstrated that QCT-AgNPs hydrogel significantly (p < 0.001) reduced the wound gap and increased % re-epithelialization compared with diabetic control after 18 d of post treatment in excisional diabetic wound model. In conclusion, this study opens up an avenue for the treatment of diabetic wound.
Collapse
Affiliation(s)
- Reena Badhwar
- Department of Pharmaceutics, Delhi Pharmaceutical Science and Research University, Mehrauli Badarpur Road, Sector-3 PushpVihar, New Delhi-110017, India
| | - Bharti Mangla
- Department of Pharmaceutics, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi-110062, India
| | - Yub Raj Neupane
- Department of Pharmacy, National University of Singapore, 117559, Singapore
| | - Kushagra Khanna
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Timarpur, Delhi, India
| | - Harvinder Popli
- Department of Pharmaceutics, Delhi Pharmaceutical Science and Research University, Mehrauli Badarpur Road, Sector-3 PushpVihar, New Delhi-110017, India
| |
Collapse
|
17
|
Dayan CB, Chun S, Krishna-Subbaiah N, Drotlef DM, Akolpoglu MB, Sitti M. 3D Printing of Elastomeric Bioinspired Complex Adhesive Microstructures. Adv Mater 2021; 33:e2103826. [PMID: 34396591 DOI: 10.1002/adma.202103826] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/16/2021] [Indexed: 06/13/2023]
Abstract
Bioinspired elastomeric structural adhesives can provide reversible and controllable adhesion on dry/wet and synthetic/biological surfaces for a broad range of commercial applications. Shape complexity and performance of the existing structural adhesives are limited by the used specific fabrication technique, such as molding. To overcome these limitations by proposing complex 3D microstructured adhesive designs, a 3D elastomeric microstructure fabrication approach is implemented using two-photon-polymerization-based 3D printing. A custom aliphatic urethane-acrylate-based elastomer is used as the 3D printing material. Two designs are demonstrated with two combined biological inspirations to show the advanced capabilities enabled by the proposed fabrication approach and custom elastomer. The first design focuses on springtail- and gecko-inspired hybrid microfiber adhesive, which has the multifunctionalities of side-surface liquid super-repellency, top-surface liquid super-repellency, and strong reversible adhesion features in a single fiber array. The second design primarily centers on octopus- and gecko-inspired hybrid adhesive, which exhibits the benefits of both octopus- and gecko-inspired microstructured adhesives for strong reversible adhesion on both wet and dry surfaces, such as skin. This fabrication approach could be used to produce many other 3D complex elastomeric structural adhesives for future real-world applications.
Collapse
Affiliation(s)
- Cem Balda Dayan
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
| | - Sungwoo Chun
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
- Department of Electronics and Information Engineering, Korea University, Sejong, 30019, Republic of Korea
| | - Nagaraj Krishna-Subbaiah
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
| | - Dirk-Michael Drotlef
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
| | - Mukrime Birgul Akolpoglu
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
| | - Metin Sitti
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
- Institute for Biomedical Engineering, ETH Zürich, Zürich, 8092, Switzerland
- School of Medicine and College of Engineering, Koç University, Istanbul, 34450, Turkey
| |
Collapse
|
18
|
Abstract
The role of water in the excellent biocompatibility of the acrylate-based polymers widely used for antibiofouling coating material has been realized previously. Here, we report femtosecond mid-infrared pump-probe spectroscopy of the OD stretch band of HOD molecule adsorbed on highly biocompatible poly(2-methoxyethyl) acrylate [PMEA] and poorly biocompatible poly(2-phenoxyethyl) acrylate [PPEA], both of which reveal that there are two water species with significantly different vibrational lifetime. PMEA interacts more strongly with water than PPEA through the H-bonding interaction between carbonyl (C═O) and water. The vibrational lifetime of the OD stretch in PPEA is notably longer by factors of 3 and 7 than those in PMEA and bulk water, respectively. The IR-pump visible-probe photothermal imaging further unravels substantial spatial overlap between polymer CO group and water for hydrated PMEA and a significant difference in surface morphology than those in PPEA, which exhibits the underlying relationships among polymer-water interaction, surface morphology, and biocompatibility.
Collapse
Affiliation(s)
- Saptarsi Mondal
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Jooyoun Kang
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Kwanghee Park
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Jong Min Lim
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Jeong-Hyon Ha
- Korea Basic Science Institute, Natural Science Campus, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Kyungwon Kwak
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Minhaeng Cho
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| |
Collapse
|
19
|
Ishizawa T, Makino N, Kakizaki Y, Matsuda A, Toyokawa Y, Ooyama S, Tanaka M, Ueno Y. Biosafety of a novel covered self-expandable metal stent coated with poly(2-methoxyethyl acrylate) in vivo. PLoS One 2021; 16:e0257828. [PMID: 34559849 PMCID: PMC8462702 DOI: 10.1371/journal.pone.0257828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 09/12/2021] [Indexed: 12/15/2022] Open
Abstract
Covered self-expandable metal stents (CSEMS) are often used for palliative endoscopic biliary drainage; however, the unobstructed period is limited because of sludge occlusion. The present study aimed to evaluate the biosafety of a novel poly(2-methoxyethyl acrylate)-coated CSEMS (PMEA-CSEMS) for sludge resistance and examine its biosafety in vivo. Using endoscopic retrograde cholangiopancreatography, we placed the PMEA-CSEMS into six normal porcine bile ducts and conventional CSEMS into three normal porcine bile ducts. We performed serological examination and undecalcified histological analysis at 1, 3, and 6 months during follow-up. In the bile ducts with PMEA-CSEMS or conventional CSEMS, we observed no increase in liver enzyme or inflammatory marker levels in the serological investigations and mild fibrosis but no inflammatory response in the histopathological analyses. Thus, we demonstrated the biosafety of PMEA-CSEMS in vivo.
Collapse
Affiliation(s)
- Tetsuya Ishizawa
- Faculty of Medicine, Department of Gastroenterology, Yamagata University, Yamagata, Japan
- * E-mail: (TI); (NM)
| | - Naohiko Makino
- Faculty of Medicine, Department of Gastroenterology, Yamagata University, Yamagata, Japan
- * E-mail: (TI); (NM)
| | - Yasuharu Kakizaki
- Faculty of Medicine, Department of Gastroenterology, Yamagata University, Yamagata, Japan
| | - Akiko Matsuda
- Faculty of Medicine, Department of Gastroenterology, Yamagata University, Yamagata, Japan
| | | | - Shun Ooyama
- Piolax Medical Devices, Inc., Kanagawa, Japan
| | - Masaru Tanaka
- Frontier Center for Organic Materials, Yamagata University, Yamagata, Japan
- Soft Materials Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, Japan
| | - Yoshiyuki Ueno
- Faculty of Medicine, Department of Gastroenterology, Yamagata University, Yamagata, Japan
| |
Collapse
|
20
|
Hu Y, Zhu G, Zhang J, Huang J, Yu X, Shang Q, An R, Liu C, Hu L, Zhou Y. Rubber Seed Oil-Based UV-Curable Polyurethane Acrylate Resins for Digital Light Processing (DLP) 3D Printing. Molecules 2021; 26:5455. [PMID: 34576926 PMCID: PMC8469773 DOI: 10.3390/molecules26185455] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 11/17/2022] Open
Abstract
Novel UV-curable polyurethane acrylate (PUA) resins were developed from rubber seed oil (RSO). Firstly, hydroxylated rubber seed oil (HRSO) was prepared via an alcoholysis reaction of RSO with glycerol, and then HRSO was reacted with isophorone diisocyanate (IPDI) and hydroxyethyl acrylate (HEA) to produce the RSO-based PUA (RSO-PUA) oligomer. FT-IR and 1H NMR spectra collectively revealed that the obtained RSO-PUA was successfully synthesized, and the calculated C=C functionality of oligomer was 2.27 per fatty acid. Subsequently, a series of UV-curable resins were prepared and their ultimate properties, as well as UV-curing kinetics, were investigated. Notably, the UV-cured materials with 40% trimethylolpropane triacrylate (TMPTA) displayed a tensile strength of 11.7 MPa, an adhesion of 2 grade, a pencil hardness of 3H, a flexibility of 2 mm, and a glass transition temperature up to 109.4 °C. Finally, the optimal resin was used for digital light processing (DLP) 3D printing. The critical exposure energy of RSO-PUA (15.20 mJ/cm2) was lower than a commercial resin. In general, this work offered a simple method to prepare woody plant oil-based high-performance PUA resins that could be applied in the 3D printing industry.
Collapse
Affiliation(s)
- Yun Hu
- Key Lab of Biomass Energy and Material, Jiangsu Province, Key Lab of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Lab for Biomass Chemical Utilization, Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China; (Y.H.); (G.Z.); (J.Z.); (J.H.); (X.Y.); (Q.S.); (L.H.); (Y.Z.)
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| | - Guoqiang Zhu
- Key Lab of Biomass Energy and Material, Jiangsu Province, Key Lab of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Lab for Biomass Chemical Utilization, Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China; (Y.H.); (G.Z.); (J.Z.); (J.H.); (X.Y.); (Q.S.); (L.H.); (Y.Z.)
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| | - Jinshuai Zhang
- Key Lab of Biomass Energy and Material, Jiangsu Province, Key Lab of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Lab for Biomass Chemical Utilization, Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China; (Y.H.); (G.Z.); (J.Z.); (J.H.); (X.Y.); (Q.S.); (L.H.); (Y.Z.)
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| | - Jia Huang
- Key Lab of Biomass Energy and Material, Jiangsu Province, Key Lab of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Lab for Biomass Chemical Utilization, Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China; (Y.H.); (G.Z.); (J.Z.); (J.H.); (X.Y.); (Q.S.); (L.H.); (Y.Z.)
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| | - Xixi Yu
- Key Lab of Biomass Energy and Material, Jiangsu Province, Key Lab of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Lab for Biomass Chemical Utilization, Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China; (Y.H.); (G.Z.); (J.Z.); (J.H.); (X.Y.); (Q.S.); (L.H.); (Y.Z.)
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| | - Qianqian Shang
- Key Lab of Biomass Energy and Material, Jiangsu Province, Key Lab of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Lab for Biomass Chemical Utilization, Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China; (Y.H.); (G.Z.); (J.Z.); (J.H.); (X.Y.); (Q.S.); (L.H.); (Y.Z.)
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| | - Rongrong An
- Smart Health Big Data Analysis and Location Services Engineering Lab of Jiangsu Province, Nanjing 210023, China;
| | - Chengguo Liu
- Key Lab of Biomass Energy and Material, Jiangsu Province, Key Lab of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Lab for Biomass Chemical Utilization, Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China; (Y.H.); (G.Z.); (J.Z.); (J.H.); (X.Y.); (Q.S.); (L.H.); (Y.Z.)
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| | - Lihong Hu
- Key Lab of Biomass Energy and Material, Jiangsu Province, Key Lab of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Lab for Biomass Chemical Utilization, Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China; (Y.H.); (G.Z.); (J.Z.); (J.H.); (X.Y.); (Q.S.); (L.H.); (Y.Z.)
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| | - Yonghong Zhou
- Key Lab of Biomass Energy and Material, Jiangsu Province, Key Lab of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Lab for Biomass Chemical Utilization, Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China; (Y.H.); (G.Z.); (J.Z.); (J.H.); (X.Y.); (Q.S.); (L.H.); (Y.Z.)
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| |
Collapse
|
21
|
Yang DC, Wang S, Weng XL, Zhang HX, Liu JY, Lin Z. Singlet Oxygen-Responsive Polymeric Nanomedicine for Light-Controlled Drug Release and Image-Guided Photodynamic-Chemo Combination Therapy. ACS Appl Mater Interfaces 2021; 13:33905-33914. [PMID: 34278780 DOI: 10.1021/acsami.1c09044] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Coencapsulation of chemotherapeutic agents and photosensitizers into nanocarriers can help to achieve a combination of chemotherapy and photodynamic therapy for superior antitumor effects. However, precise on-demand drug release remains a major challenge. In addition, the loaded photosensitizers usually tend to aggregate, which can significantly weaken their fluorescent signals and photodynamic activities. To address these issues, herein, a smart nanocarrier termed as singlet oxygen-responsive nanoparticle (SOR-NP) was constructed by introducing singlet oxygen (1O2)-sensitive aminoacrylate linkers into amphiphilic mPEG-b-PCL copolymers. Boron dipyrromethene (BDP) and paclitaxel (PTX) as model therapeutic agents were coloaded into an 1O2-responsive nanocarrier for realizing light-controlled drug release and combination cancer treatment. This polymeric nanocarrier could substantially relieve the aggregation of encapsulated BDP due to the presence of a long hydrophobic chain. Therefore, the formed SOR-NPBDP/PTX nanodrug could generate bright fluorescent signals and high levels of 1O2, which could mediate cell death via PDT and rupture aminoacrylate linker simultaneously, leading to collapse of SOR-NPBDP/PTX and subsequent PTX release. The light-triggered drug release and combined anticancer effects of SOR-NPBDP/PTX were validated in HepG2 and MCF-7 cancer cells and H22 tumor-bearing mice. This study provides a promising strategy for tumor-specific drug release and selective photodynamic-chemo combination treatment.
Collapse
Affiliation(s)
- De-Chao Yang
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Shuai Wang
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Xiao-Lu Weng
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Hong-Xia Zhang
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Jian-Yong Liu
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou University, Fuzhou 350108, China
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry, Fuzhou University, Fuzhou 350108, China
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Zhonghui Lin
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| |
Collapse
|
22
|
Khan A, Smith NM, Tullier MP, Roberts BS, Englert D, Pojman JA, Melvin AT. Development of a Flow-free Gradient Generator Using a Self-Adhesive Thiol-acrylate Microfluidic Resin/Hydrogel (TAMR/H) Hybrid System. ACS Appl Mater Interfaces 2021; 13:26735-26747. [PMID: 34081856 PMCID: PMC8289190 DOI: 10.1021/acsami.1c04771] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
Microfluidic gradient generators have been used to study cellular migration, growth, and drug response in numerous biological systems. One type of device combines a hydrogel and polydimethylsiloxane (PDMS) to generate "flow-free" gradients; however, their requirements for either negative flow or external clamps to maintain fluid-tight seals between the two layers have restricted their utility among broader applications. In this work, a two-layer, flow-free microfluidic gradient generator was developed using thiol-ene chemistry. Both rigid thiol-acrylate microfluidic resin (TAMR) and diffusive thiol-acrylate hydrogel (H) layers were synthesized from commercially available monomers at room temperature and pressure using a base-catalyzed Michael addition. The device consisted of three parallel microfluidic channels negatively imprinted in TAMR layered on top of the thiol-acrylate hydrogel to facilitate orthogonal diffusion of chemicals to the direction of flow. Upon contact, these two layers formed fluid-tight channels without any external pressure due to a strong adhesive interaction between the two layers. The diffusion of molecules through the TAMR/H system was confirmed both experimentally (using fluorescent microscopy) and computationally (using COMSOL). The performance of the TAMR/H system was compared to a conventional PDMS/agarose device with a similar geometry by studying the chemorepulsive response of a motile strain of GFP-expressing Escherichia coli. Population-based analysis confirmed a similar migratory response of both wild-type and mutant E. coli in both of the microfluidic devices. This confirmed that the TAMR/H hybrid system is a viable alternative to traditional PDMS-based microfluidic gradient generators and can be used for several different applications.
Collapse
Affiliation(s)
- Anowar
H. Khan
- Department
of Chemistry, Louisiana State University, Baton Rouge 70803, Louisiana, United States
| | - Noah Mulherin Smith
- Cain
Department of Chemical Engineering, Louisiana
State University, Baton Rouge 70803, Louisiana, United States
| | - Michael P. Tullier
- Department
of Chemistry, Louisiana State University, Baton Rouge 70803, Louisiana, United States
| | - B. Seth Roberts
- Cain
Department of Chemical Engineering, Louisiana
State University, Baton Rouge 70803, Louisiana, United States
| | - Derek Englert
- Chemical
and Materials Engineering, University of
Kentucky, Paducah 42002, Kentucky, United States
| | - John A. Pojman
- Department
of Chemistry, Louisiana State University, Baton Rouge 70803, Louisiana, United States
| | - Adam T. Melvin
- Cain
Department of Chemical Engineering, Louisiana
State University, Baton Rouge 70803, Louisiana, United States
| |
Collapse
|
23
|
Velazco-Medel MA, Camacho-Cruz LA, Magaña H, Palomino K, Bucio E. Simultaneous Grafting Polymerization of Acrylic Acid and Silver Aggregates Formation by Direct Reduction Using γ Radiation onto Silicone Surface and Their Antimicrobial Activity and Biocompatibility. Molecules 2021; 26:2859. [PMID: 34065879 PMCID: PMC8151000 DOI: 10.3390/molecules26102859] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/07/2021] [Accepted: 05/09/2021] [Indexed: 01/05/2023] Open
Abstract
The modification of medical devices is an area that has attracted a lot of attention in recent years; particularly, those developments which search to modify existing devices to render them antimicrobial. Most of these modifications involve at least two stages (modification of the base material with a polymer graft and immobilization of an antimicrobial agent) which are both time-consuming and complicate synthetic procedures; therefore, as an improvement, this project sought to produce antimicrobial silicone (PDMS) in a single step. Using gamma radiation as both an energy source for polymerization initiation and as a source of reducing agents in solution, PDMS was simultaneously grafted with acrylic acid and ethylene glycol dimethacrylate (AAc:EGDMA) while producing antimicrobial silver nanoparticles (AgNPs) onto the surface of the material. To obtain reproducible materials, experimental variables such as the effect of the dose, the intensity of radiation, and the concentration of the silver salt were evaluated, finding the optimal reaction conditions to obtain materials with valuable properties. The characterization of the material was performed using electronic microscopy and spectroscopic techniques such as 13C-CPMAS-SS-NMR and FTIR. Finally, these materials demonstrated good antimicrobial activity against S. aureus while retaining good cell viabilities (above 90%) for fibroblasts BALB/3T3.
Collapse
Affiliation(s)
- Marlene A. Velazco-Medel
- Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad 7 Universitaria, Ciudad de México 04510, Mexico;
| | - Luis A. Camacho-Cruz
- Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad 7 Universitaria, Ciudad de México 04510, Mexico;
| | - Héctor Magaña
- Faculty of Chemical Sciences and Engineering, Autonomous University of Baja California, University Boulevard No. 14418, Otay Mesa, Tijuana 22390, Mexico; (H.M.); (K.P.)
| | - Kenia Palomino
- Faculty of Chemical Sciences and Engineering, Autonomous University of Baja California, University Boulevard No. 14418, Otay Mesa, Tijuana 22390, Mexico; (H.M.); (K.P.)
| | - Emilio Bucio
- Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad 7 Universitaria, Ciudad de México 04510, Mexico;
| |
Collapse
|
24
|
Jiang Z, Li Y, Shen Y, Yang J, Zhang Z, You Y, Lv Z, Yao L. Robust Hydrogel Adhesive with Dual Hydrogen Bond Networks. Molecules 2021; 26:molecules26092688. [PMID: 34064401 PMCID: PMC8124778 DOI: 10.3390/molecules26092688] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/29/2021] [Accepted: 04/29/2021] [Indexed: 11/16/2022] Open
Abstract
Hydrogel adhesives are attractive for applications in intelligent soft materials and tissue engineering, but conventional hydrogels usually have poor adhesion. In this study, we designed a strategy to synthesize a novel adhesive with a thin hydrogel adhesive layer integrated on a tough substrate hydrogel. The adhesive layer with positive charges of ammonium groups on the polymer backbones strongly bonds to a wide range of nonporous materials’ surfaces. The substrate layer with a dual hydrogen bond system consists of (i) weak hydrogen bonds between N,N-dimethyl acrylamide (DMAA) and acrylic acid (AAc) units and (ii) strong multiple hydrogen bonds between 2-ureido-4[1H]-pyrimidinone (UPy) units. The dual hydrogen-bond network endowed the hydrogel adhesives with unique mechanical properties, e.g., toughness, highly stretchability, and insensitivity to notches. The hydrogel adhesion to four types of materials like glass, 316L stainless steel, aluminum, Al2O3 ceramic, and two biological tissues including pig skin and pig kidney was investigated. The hydrogel bonds strongly to dry solid surfaces and wet tissue, which is promising for biomedical applications.
Collapse
|
25
|
Wang X, Dong M, Meng Z, Chen J, Yang J, Wang X. Synthesis and Biological Activity of Acrylate Copolymers Containing 3-Oxo-N-allyl-1,2-benzisothiazole-3(2H)-carboxamide Monomer as a Marine Antifouling Coating. ChemistryOpen 2021; 10:523-533. [PMID: 33629516 PMCID: PMC8095297 DOI: 10.1002/open.202000273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 02/02/2021] [Indexed: 11/10/2022] Open
Abstract
A type of grafted acrylate copolymer resins, containing 3-oxo-N-allyl-1,2-benzisothiazole-2(3H)-carboxamide monomer and heterocyclic monomers, was synthesized through the copolymeri- zation of methyl methacrylate (MMA) and butyl acrylate (BA) with functional monomers. The structures of the monomers and copolymers were validated by infrared (IR) and 1 H nuclear magnetic resonance (NMR) spectroscopies. The inhibitory activities of the copolymers on algae, bacteria, and barnacle larvae were measured, and the antifouling potencies against marine macrofouling organisms were investigated. The results showed that the grafted resin had significant inhibitory effects on the growth of three marine algae (Isochrysis galbana, Nannochloropsisoculata, and Chlorella pyrenoidosa), and three bacteria (Vibrio coralliilyticus, Staphylococcus aureus,and Vibrio parahaemolyticus). The target copolymers also showed excellent inhibition of the survival of barnacle larvae. Additionally, the release rate of the antifoulant and the results of the marine field tests indicated that the grafted copolymers had outstanding antifouling potency against the attachment of marine macrofouling organisms.
Collapse
Affiliation(s)
- Xuemei Wang
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
- Hainan Provincial Fine Chemical Engineering Research CenterHainan UniversityHaikou570228P. R. China
| | - Miao Dong
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
- Hainan Provincial Fine Chemical Engineering Research CenterHainan UniversityHaikou570228P. R. China
| | - Zhiping Meng
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
| | - Junhua Chen
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
| | - Jianxin Yang
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
- Hainan Provincial Fine Chemical Engineering Research CenterHainan UniversityHaikou570228P. R. China
| | - Xianghui Wang
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
- College of Chemistry and Chemical EngineeringHainan Normal UniversityHaikou571158P. R. China
| |
Collapse
|
26
|
Meimoun J, Wiatz V, Saint-Loup R, Parcq J, David A, Stoclet G, Gaucher V, Favrelle-Huret A, Bonnet F, Zinck P. A one pot one step combined radical and ring-opening route for the dual functionalization of starch in aqueous medium. Carbohydr Polym 2021; 254:117399. [PMID: 33357889 DOI: 10.1016/j.carbpol.2020.117399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/19/2020] [Accepted: 11/08/2020] [Indexed: 11/18/2022]
Abstract
Starch based materials are attractive bio-based alternative to fully synthetic polymers. Native starch has however limited thermoprocessability and properties and must be modified. In order to improve the properties of starch-graft-poly(butyl-acrylate-co-styrene) copolymers via a process as green as possible, we report herein a new method for the dual functionalization of the polysaccharide via a one pot one step reaction in aqueous medium combining free radical polymerizations and ring-opening chemistry. Poly(butyl acrylate) or poly(butyl acrylate-co-styrene) (ca. 60 000 g/mol) and oligo(ε-caprolactone) were grafted on starch with a grafting percentage up to 75 %. The copolymers show two glass transition temperatures: one around 55-60 °C related to starch and a second attributed to the grafted vinyl polymers, from -46 °C to 20 °C depending on butyl acrylate/styrene ratio. The resulting dual functionalized materials exhibit excellent mechanical properties, with elongation at break in the range 20-210 %, while single functionalized starch shows less than 5 %.
Collapse
Affiliation(s)
- Julie Meimoun
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité De Catalyse Et Chimie Du Solide, F-59000, Lille, France
| | | | | | | | - Adélina David
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux Et Transformations (UMET), F-59000, Lille, France
| | - Grégory Stoclet
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux Et Transformations (UMET), F-59000, Lille, France
| | - Valérie Gaucher
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux Et Transformations (UMET), F-59000, Lille, France
| | - Audrey Favrelle-Huret
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité De Catalyse Et Chimie Du Solide, F-59000, Lille, France
| | - Fanny Bonnet
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux Et Transformations (UMET), F-59000, Lille, France
| | - Philippe Zinck
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité De Catalyse Et Chimie Du Solide, F-59000, Lille, France.
| |
Collapse
|
27
|
Ruiu A, Bauer-Siebenlist B, Senila M, Li WSJ, Seaudeau-Pirouley K, Lacroix-Desmazes P, Jänisch T. Supercritical CO 2 Extraction of Palladium Oxide from an Aluminosilicate-Supported Catalyst Enhanced by a Combination of Complexing Polymers and Piperidine. Molecules 2021; 26:molecules26030684. [PMID: 33525610 PMCID: PMC7865370 DOI: 10.3390/molecules26030684] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/17/2021] [Accepted: 01/18/2021] [Indexed: 11/16/2022] Open
Abstract
Precious metals, in particular Pd, have a wide range of applications in industry. Due to their scarcity, precious metals have to be recycled, preferably with green and energy-saving recycling processes. In this article, palladium extraction from an aluminosilicate-supported catalyst, containing about 2 wt% (weight%) of Pd (100% PdO), with supercritical CO2 (scCO2) assisted by complexing polymers is described. Two polymers, p(FDA)SH homopolymer and p(FDA-co-DPPS) copolymer (FDA: 1,1,2,2-tetrahydroperfluorodecyl acrylate; DPPS: 4-(diphenylphosphino)styrene), were tested with regards to their ability to extract palladium. Both polymers showed relatively low extraction conversions of approximately 18% and 30%, respectively. However, the addition of piperidine as activator for p(FDA-co-DPPS) allowed for an increase in the extraction conversion of up to 60%.
Collapse
Affiliation(s)
- Andrea Ruiu
- ICGM, Univ Montpellier, CNRS, ENSCM, 34095 Montpellier, France; (A.R.); (W.S.J.L.)
| | | | - Marin Senila
- National Institute for Research and Development of Optoelectronics Bucharest, Research Institute for Analytical Instrumentation, Donath 67, 400293 Cluj-Napoca, Romania;
| | - W. S. Jennifer Li
- ICGM, Univ Montpellier, CNRS, ENSCM, 34095 Montpellier, France; (A.R.); (W.S.J.L.)
| | - Karine Seaudeau-Pirouley
- Innovation Fluides Supercritiques (IFS), Bâtiment INEED, 1 Rue Marc, Seguin, BP16109, 26300 Alixan, France;
| | - Patrick Lacroix-Desmazes
- ICGM, Univ Montpellier, CNRS, ENSCM, 34095 Montpellier, France; (A.R.); (W.S.J.L.)
- Correspondence: (P.L.-D.); (T.J.)
| | - Thorsten Jänisch
- Fraunhofer Institute for Chemical Technology (ICT), Joseph-von-Fraunhofer-Str. 7, 76327 Pfinztal, Germany
- Correspondence: (P.L.-D.); (T.J.)
| |
Collapse
|
28
|
Zhang J, Keith AN, Sheiko SS, Wang X, Wang Z. To Mimic Mechanical Properties of the Skin by Inducing Oriented Nanofiber Microstructures in Bottlebrush Cellulose- graft-diblock Copolymer Elastomers. ACS Appl Mater Interfaces 2021; 13:3278-3286. [PMID: 33416300 DOI: 10.1021/acsami.0c21494] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Skin is a vital biological defense system that protects the body from physical harm with its unique mechanical properties attributed to the hierarchical organization of the protein scaffold. Developing a synthetic skinlike material has aroused great interest; however, replication of the skin's mechanical response, including anisotropic softness and strain-stiffening, is difficult to achieve. Here, to mimic the mechanical behaviors of skin, a reprocessable bottlebrush copolymer elastomer was designed with renewable and rigid cellulose as backbones; meanwhile, poly(n-butyl acrylate)-b-poly(methyl methacrylate) (PBA-b-PMMA) diblocks were designed as the grafted side chains. The so-made elastomers were subjected to a step-cyclic tensile deformation, by which the internal structures became oriented nanofibers and endowed stress-strain behaviors pretty much similar to those of the real skin. Overall, our research work currently undertaken would be of great importance in the development of a series of biomimetic skinlike polymer materials.
Collapse
Affiliation(s)
- Juan Zhang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Andrew N Keith
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Sergei S Sheiko
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Xuehui Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhigang Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| |
Collapse
|
29
|
Van Bruggen C, Punihaole D, Keith AR, Schmitz AJ, Tolar J, Frontiera RR, Reineke TM. Quinine copolymer reporters promote efficient intracellular DNA delivery and illuminate a protein-induced unpackaging mechanism. Proc Natl Acad Sci U S A 2020; 117:32919-32928. [PMID: 33318196 PMCID: PMC7777095 DOI: 10.1073/pnas.2016860117] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Polymeric vehicles that efficiently package and controllably release nucleic acids enable the development of safer and more efficacious strategies in genetic and polynucleotide therapies. Developing delivery platforms that endogenously monitor the molecular interactions, which facilitate binding and release of nucleic acids in cells, would aid in the rational design of more effective vectors for clinical applications. Here, we report the facile synthesis of a copolymer containing quinine and 2-hydroxyethyl acrylate that effectively compacts plasmid DNA (pDNA) through electrostatic binding and intercalation. This polymer system poly(quinine-co-HEA) packages pDNA and shows exceptional cellular internalization, transgene expression, and low cytotoxicity compared to commercial controls for several human cell lines, including HeLa, HEK 293T, K562, and keratinocytes (N/TERTs). Using quinine as an endogenous reporter for pDNA intercalation, Raman imaging revealed that proteins inside cells facilitate the unpackaging of polymer-DNA complexes (polyplexes) and the release of their cargo. Our work showcases the ability of this quinine copolymer reporter to not only facilitate effective gene delivery but also enable diagnostic monitoring of polymer-pDNA binding interactions on the molecular scale via Raman imaging. The use of Raman chemical imaging in the field of gene delivery yields unprecedented insight into the unpackaging behavior of polyplexes in cells and provides a methodology to assess and design more efficient delivery vehicles for gene-based therapies.
Collapse
Affiliation(s)
- Craig Van Bruggen
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455
| | - David Punihaole
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455
| | - Allison R Keith
- Department of Pediatrics, Stem Cell Institute, University of Minnesota Medical School, Minneapolis, MN 55455
| | - Andrew J Schmitz
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455
| | - Jakub Tolar
- Department of Pediatrics, Stem Cell Institute, University of Minnesota Medical School, Minneapolis, MN 55455
| | - Renee R Frontiera
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455;
| | - Theresa M Reineke
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455;
| |
Collapse
|
30
|
Podkościelna B, Wnuczek K, Goliszek M, Klepka T, Dziuba K. Flammability Tests and Investigations of Properties of Lignin-Containing Polymer Composites Based on Acrylates. Molecules 2020; 25:E5947. [PMID: 33334041 PMCID: PMC7765523 DOI: 10.3390/molecules25245947] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 02/06/2023] Open
Abstract
In this paper flammability tests and detailed investigations of lignin-containing polymer composites' properties are presented. Composites were obtained using bisphenol A glycerolate (1 glycerol/phenol) diacrylate (BPA.GDA), ethylene glycol dimethacrylate (EGDMA), and kraft lignin (lignin alkali, L) during UV curing. In order to evaluate the influence of lignin modification and the addition of flame retardant compounds on the thermal resistance of the obtained biocomposites, flammability tests have been conducted. After the modification with phosphoric acid (V) lignin, as well as diethyl vinylphosphonate, were used as flame retardant additives. The changes in the chemical structures (ATR-FTIR), as well as the influence of the different additives on the hardness, thermal (TG) and mechanical properties were discussed in detail. The samples after the flammability test were also studied to assess their thermal destruction.
Collapse
Affiliation(s)
- Beata Podkościelna
- Department of Polymer Chemistry, Institute of Chemical Science, Faculty of Chemistry, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland; (K.W.); (M.G.)
| | - Krystyna Wnuczek
- Department of Polymer Chemistry, Institute of Chemical Science, Faculty of Chemistry, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland; (K.W.); (M.G.)
| | - Marta Goliszek
- Department of Polymer Chemistry, Institute of Chemical Science, Faculty of Chemistry, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland; (K.W.); (M.G.)
- Analytical Laboratory, Institute of Chemical Science, Faculty of Chemistry, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland
| | - Tomasz Klepka
- Department of Technology and Polymer Processing, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland;
| | - Kamil Dziuba
- Department of Organic Chemistry, Institute of Chemical Science, Faculty of Chemistry, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland;
| |
Collapse
|
31
|
Wang G, Li G, Huan Y, Hao C, Chen W. Acrylic acid functionalized graphene oxide: High-efficient removal of cationic dyes from wastewater and exploration on adsorption mechanism. Chemosphere 2020; 261:127736. [PMID: 32750618 DOI: 10.1016/j.chemosphere.2020.127736] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/12/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
A novel p(AA)-g-GO material was prepared by grafting polymerization of acrylic acid (AA) onto graphene oxide (GO) skeleton, presenting efficient removal of dyes from wastewater, because the layer spacing of GO is expanded and successfully introduced numerous polar carboxyl groups. The study revealed a rapid adsorption kinetic process and the adsorption capacity for methylene blue (MB) increases with pH, contact time, initial dye concentration and temperature. The maximum adsorption capacity is about 1448.2 mg/g at 25 °C for MB according to the Langmuir isotherm. More importantly, the adsorbent maintains excellent adsorption capacity after five cycles of adsorption-desorption and has remarkable selective separability for methylene blue/methyl orange mixed solution at pH = 10. Furthermore, the equilibrium adsorption capacities for other cationic dyes as malachite green (MG), basic fuchsin (BF) and rhodamine B (RhB) reached 582.1, 571.7 and 437.1 mg/g, respectively. Additionally, the mechanism analysis indicated that electrostatic interactions, π-π conjugation and hydrogen bonding are the predominant forces for adsorbing cationic dyes. Therefore, p(AA)-g-GO is an outstanding adsorbent and has a potential application prospect in the treatment of dye wastewater.
Collapse
Affiliation(s)
- Guanglin Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Guangfen Li
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, China.
| | - Yangyang Huan
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Chaoqun Hao
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Wei Chen
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, China
| |
Collapse
|
32
|
Abdelmonem IM, Metwally E, Siyam TE, Abou El-Nour F, Mousa ARM. Gamma radiation-induced preparation of chitosan-acrylic acid-1-vinyl-2-vinylpyrrolidone/multiwalled carbon nanotubes composite for removal of 152+154Eu, 60Co and 134Cs radionuclides. Int J Biol Macromol 2020; 164:2258-2266. [PMID: 32805290 DOI: 10.1016/j.ijbiomac.2020.08.120] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/11/2020] [Accepted: 08/13/2020] [Indexed: 12/20/2022]
Abstract
Removal behaviors of 152+154Eu, 60Co, and 134Cs radionuclides onto Chitosan-acrylic acid-1-vinyl-2-vinylpyrrolidone/oxidized multi-walled carbon nanotubes (CTS-AA-VP/o-MWCNTs) composite has been investigated by batch adsorption technique. CTS-AA-VP/o-MWCNTs composite has been synthesized by copolymerization of acrylic acid (AA) and 1-vinyl-2-vinylpyrrolidone (VP) onto the surface of chitosan/oxidized multi-walled carbon nanotubes (CTS/o-MWCNTs) using gamma radiation. SEM, TGA, and FTIR were applied to characterize the morphology, thermal stability, and structure of the composite. The composite shows high removal capacity of 321.77, 369.91, and 456.46 mg/g towards 152+154Eu, 60Co, and 134Cs radionuclides, respectively.
Collapse
Affiliation(s)
- Islam Mohamed Abdelmonem
- Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt.
| | - Essam Metwally
- Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt
| | - Tharwat Essa Siyam
- Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt
| | - Farid Abou El-Nour
- Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt
| | | |
Collapse
|
33
|
Wang J, Liu L, Wang A, Liu X, Zhang Y, Wang Z, Dou J. Smooth Muscle Cell Responses to Poly(ε-Caprolactone) Triacrylate Networks with Different Crosslinking Time. Int J Mol Sci 2020; 21:ijms21238932. [PMID: 33255621 PMCID: PMC7728059 DOI: 10.3390/ijms21238932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 11/16/2022] Open
Abstract
Poly(ε-caprolactone) triacrylate (PCLTA) is attractive in tissue engineering because of its good biocompatibility and processability. The crosslinking time strongly influences PCLTAs cellular behaviors. To investigate these influences, PCLTAs with different molecular weights were crosslinked under UV light for times ranging from 1 to 20 min. The crosslinking efficiency of PCLTA increased with decreasing the molecular weight and increasing crosslinking time which could increase the gel fraction and network stiffness and decrease the swelling ratio. Then, the PCLTA networks crosslinked for different time were used as substrates for culturing rat aortic smooth muscle cells (SMCs). SMC attachment and proliferation all increased when the PCLTA molecular weight increased from 8k to 10k and then to 20k at the same crosslinking time. For the same PCLTA, SMC attachment, proliferation, and focal adhesions increased with increasing the crosslinking time, in particular, between the substrates crosslinked for less than 3 min and longer than 5 min. This work will provide a good experimental basis for the application of PCLTA.
Collapse
Affiliation(s)
- Jing Wang
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China; (J.W.); (X.L.)
| | - Li Liu
- Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 211816, China; (L.L.); (A.W.)
| | - Aoning Wang
- Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 211816, China; (L.L.); (A.W.)
| | - Xiang Liu
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China; (J.W.); (X.L.)
| | - Yi Zhang
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China; (J.W.); (X.L.)
- Correspondence: (Y.Z.); (Z.W.); (J.D.)
| | - Zhoulu Wang
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China; (J.W.); (X.L.)
- Correspondence: (Y.Z.); (Z.W.); (J.D.)
| | - Jinbo Dou
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China; (J.W.); (X.L.)
- Department of Materials Science and Engineering, The University of Tennessee, Knoxville, TN 37996, USA
- Correspondence: (Y.Z.); (Z.W.); (J.D.)
| |
Collapse
|
34
|
Zhang J, Yang W, Xie L, Tu X, Wang W, Xu C, Wang H, Li S. Fibrillogenesis of acrylic acid-grafted-collagen without self-assembly property inspired by the hybrid fibrils of xenogeneic collagen. Int J Biol Macromol 2020; 163:2127-2133. [PMID: 32946937 DOI: 10.1016/j.ijbiomac.2020.09.058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/27/2020] [Accepted: 09/09/2020] [Indexed: 01/14/2023]
Abstract
Along with advancements in both protein and chemistry science, the chemical modification of proteins is attracting more and more attention. More specifically, the attachment of polymers or reactive moieties into collagen offers a method to add novel functions to this protein. However, the fibrillogenesis of the modified collagen with high grafting density cannot always be achieved. Here, inspired by the hybrid fibrils of xenogeneic collagen, fibrillogenesis of acrylic acid-grafted-collagen (AAc-g-Col) without self-assembly property was achieved by the induction of natural collagen (Col). The step-by-step co-assembly process of AAc-g-Col and Col was confirmed by turbidity assay. The formation of Col/AAc-g-Col hybrid fibrils was verified by TEM since the acryloyl groups of the hybrid fibrils were labelled using HS-AuNPs based on the Michael addition. Moreover, rheology, SEM, and MTT assays revealed that the fibrillary structures and biocompatibility of the Col/AAc-g-Col hydrogel were comparable to that of the Col hydrogel, although they presented a lower viscoelasticity.
Collapse
Affiliation(s)
- Juntao Zhang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Wendian Yang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Lvqin Xie
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Xiao Tu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Wenxin Wang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Chengzhi Xu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Haibo Wang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China.
| | - Sheng Li
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China.
| |
Collapse
|
35
|
Lu M, Zhu H, Hong L, Zhao J, Masson JF, Peng W. Wavelength-Tunable Optical Fiber Localized Surface Plasmon Resonance Biosensor via a Diblock Copolymer-Templated Nanorod Monolayer. ACS Appl Mater Interfaces 2020; 12:50929-50940. [PMID: 33136359 DOI: 10.1021/acsami.0c09711] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Well-dispersed and dense layers of gold nanorods (AuNRs) on optical fibers are shown to regulate the longitudinal peak wavelength and enhance the sensing performances of localized surface plasmon resonance (LSPR) biosensors. A simple self-assembly method relying on a brush-like monolayer of poly(styrene)-b-poly(acrylic acid) (PS-b-PAA) diblock copolymer was used to immobilize AuNRs with various aspect ratios from 2.33 to 4.60 on optical fibers. Both the experimental and simulation results illustrated that the particle aspect ratio, deposition time (related to the coverage of AuNRs), and interparticle gap significantly affected the optical properties of the fiber-based LSPR biosensors. The highest refractive index (RI) sensitivity of the sensor was 753 nm/RIU, while the limit of detection for human IgG was as low as 0.8 nM. Compared with standard nanoparticle deposition methods of polyelectrolytes or alkoxysilanes, the RI sensitivity of the PS-b-PAA dip-coating method was approximately 3-fold better, a consequence of the higher particle coverage and fewer AuNR aggregates. The presented AuNR-based LSPR sensors could regulate the detection range by tuning the aspect ratios of AuNRs. Applicability is demonstrated via quantitative analysis of antigen-antibody interactions, DNA sensing, and surface-enhanced Raman scattering.
Collapse
Affiliation(s)
- Mengdi Lu
- College of Physics, Dalian University of Technology, Dalian 116024, China
| | - Hu Zhu
- Department of Chemistry, University of Toronto, Ontario M5S3H6, Canada
| | - Long Hong
- School of Life Sciences, Peking University, Beijing 100871, China
| | - Jijun Zhao
- College of Physics, Dalian University of Technology, Dalian 116024, China
| | - Jean-Francois Masson
- Département de Chimie, Regroupement Québécois des Matériaux de Pointe, and Centre Québécois sur les Matériaux Fonctionnels (CQMF), Université de Montréal, Montreal H3C 3J7, Quebec, Canada
| | - Wei Peng
- College of Physics, Dalian University of Technology, Dalian 116024, China
| |
Collapse
|
36
|
Abou-Zeid RE, Kamal KH, Abd El-Aziz ME, Morsi SM, Kamel S. Grafted TEMPO-oxidized cellulose nanofiber embedded with modified magnetite for effective adsorption of lead ions. Int J Biol Macromol 2020; 167:1091-1101. [PMID: 33186652 DOI: 10.1016/j.ijbiomac.2020.11.063] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/08/2020] [Accepted: 11/09/2020] [Indexed: 12/19/2022]
Abstract
According to the World Health Organization, nearly a billion people do not have incoming to pure drinking water and much of that water is contaminated with high levels of heavy elements. In this study, adsorption of lead ions has been studied by nanocomposites which prepared through acrylic acid grafting and amino-functionalized magnetized (FM-NPs) TEMPO-oxidized cellulose nanofiber (TEMPO-CNF). The amino-functionalized magnetite was acting as a crosslinked. The crystallinity of TEMPO-CNF was 75 with a 4-10 nm diameter range, while the average particle size of FM-NPs was 30 nm. The adsorption studies illustrated that the elimination efficiency of lead ions was 80% by the prepared nanocomposite that includes a minimum amount of crosslinker (1%), which demonstrated that the magnetic grafted oxidized cellulose nanofiber nanocomposite is a promising green adsorbent material to eliminate heavy metal ions and is additionally easy to get rid of due to its magnetic property. The kinetics and isotherms studied found that the sorption reaction follows a pseudo-second-order model (R2 = 0.997) and Freundlich model (R2 = 0.993), respectively, this indicated that the adsorption of lead ion occurs within the pores and via the functional groups present on the nanocomposite.
Collapse
Affiliation(s)
- Ragab E Abou-Zeid
- Cellulose and Paper Department, National Research Centre, 33 El Bohouth St., Dokki, Giza, P.O. 12622, Egypt
| | - Kholod H Kamal
- Water Pollution Research Department, National Research Centre, 33 El Bohouth St., Dokki, Giza, P.O. 12622, Egypt
| | - M E Abd El-Aziz
- Polymers and Pigments Department, National Research Centre, 33 El Bohouth St., Dokki, Giza, P.O. 12622, Egypt.
| | - S M Morsi
- Polymers and Pigments Department, National Research Centre, 33 El Bohouth St., Dokki, Giza, P.O. 12622, Egypt
| | - Samir Kamel
- Cellulose and Paper Department, National Research Centre, 33 El Bohouth St., Dokki, Giza, P.O. 12622, Egypt
| |
Collapse
|
37
|
Hou W, Liu R, Bi S, He Q, Wang H, Gu J. Photo-Responsive Polymersomes as Drug Delivery System for Potential Medical Applications. Molecules 2020; 25:E5147. [PMID: 33167426 PMCID: PMC7663911 DOI: 10.3390/molecules25215147] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/02/2020] [Accepted: 11/02/2020] [Indexed: 02/05/2023] Open
Abstract
Due to a strong retardation effect of o-nitrobenzyl ester on polymerization, it is still a great challenge to prepare amphiphilic block copolymers for polymersomes with a o-nitrobenzyl ester-based hydrophobic block. Herein, we present one such solution to prepare amphiphilic block copolymers with pure poly (o-nitrobenzyl acrylate) (PNBA) as the hydrophobic block and poly (N,N'-dimethylacrylamide) (PDMA) as the hydrophilic block using bulk reversible addition-fragmentation chain transfer (RAFT) polymerization of o-nitrobenzyl acrylate using a PDMA macro-RAFT agent. The developed amphiphilic block copolymers have a suitable hydrophobic/hydrophilic ratio and can self-assemble into photoresponsive polymersomes for co-loading hydrophobic and hydrophilic cargos into hydrophobic membranes and aqueous compartments of the polymersomes. The polymersomes demonstrate a clear photo-responsive characteristic. Exposure to light irradiation at 365 nm can trigger a photocleavage reaction of o-nitrobenzyl groups, which results in dissociation of the polymersomes with simultaneous co-release of hydrophilic and hydrophobic cargoes on demand. Therefore, these polymersomes have great potential as a smart drug delivery nanocarrier for controllable loading and releasing of hydrophilic and hydrophobic drug molecules. Moreover, taking advantage of the conditional releasing of hydrophilic and hydrophobic drugs, the drug delivery system has potential use in medical applications such as cancer therapy.
Collapse
Affiliation(s)
- Wanting Hou
- Department of Medical Oncology Cancer Center, West China Hospital, Sichuan University, Chengdu 610000, Sichuan, China;
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610000, Sichuan, China
| | - Ruiqi Liu
- Department of Burn and Plastic Surgery, West China Hospital, Sichuan University, Chengdu 610000, Sichuan, China; (R.L.); (S.B.)
| | - Siwei Bi
- Department of Burn and Plastic Surgery, West China Hospital, Sichuan University, Chengdu 610000, Sichuan, China; (R.L.); (S.B.)
| | - Qian He
- Department of Emergency, West China Hospital, Sichuan University, Chengdu 610000, Sichuan, China;
| | - Haibo Wang
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610000, Sichuan, China
| | - Jun Gu
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu 610000, Sichuan, China
| |
Collapse
|
38
|
DeLeo PC, Summers H, Stanton K, Lam MW. Environmental risk assessment of polycarboxylate polymers used in cleaning products in the United States. Chemosphere 2020; 258:127242. [PMID: 32535441 DOI: 10.1016/j.chemosphere.2020.127242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/26/2020] [Accepted: 05/27/2020] [Indexed: 06/11/2023]
Abstract
Polycarboxylate polymers have been common components of consumer and institutional cleaning products for decades. With interest heightened in the potential environmental impact of polymers, the American Cleaning Institute, the industry trade association of the cleaning products industry in the United States, is reassessing the state of the science regarding the environmental safety of polymers in cleaning products. In this case study, acrylic acid homopolymers and acrylic acid-maleic acid copolymers are evaluated using historical ecotoxicity data that have been reported over the past three decades. The evaluation includes an environmental exposure assessment that is based on recent information regarding the occurrence of those ingredients in cleaning products and market sales data for cleaning products sold in the United States. The ecotoxicity of polycarboxylate polymers is generally low. Consequently, the potential environmental risks associated with their use in cleaning products in the United States are low even when applying very conservative assumptions to the environmental exposure assessment. In addition, there are recent supporting conclusions from assessments by the governments of Australia and Canada that polycarboxylate polymers are polymers of low concern, and the U.S. Environmental Protection Agency has included a number of polycarboxylate polymers among the ingredients on its Safer Chemical Ingredients List based on their low hazard profile.
Collapse
Affiliation(s)
| | | | | | - Monica W Lam
- The Procter and Gamble Company, Cincinnati, OH, USA.
| |
Collapse
|
39
|
Asai F, Seki T, Sugawara-Narutaki A, Sato K, Odent J, Coulembier O, Raquez JM, Takeoka Y. Tough and Three-Dimensional-Printable Poly(2-methoxyethyl acrylate)-Silica Composite Elastomer with Antiplatelet Adhesion Property. ACS Appl Mater Interfaces 2020; 12:46621-46628. [PMID: 32940451 DOI: 10.1021/acsami.0c11416] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Poly(2-methoxyethyl acrylate) (PMEA) has attracted attention as a biocompatible polymer that is used as an antithrombotic coating agent for medical devices, such as during artificial heart and lung fabrication. However, PMEA is a viscous liquid polymer with low Tg, and its physical strength is poor even if a cross-linker is used, so it is difficult to make tough and freestanding objects from it. Here, we design and fabricate a biocompatible elastomer made of tough, self-supporting PMEA-silica composites. The toughness of the composite elastomer increases as a function of silica particle filling, and its stress at break is improved from 0.3 to 6.7 MPa. The fracture energy of the composite elastomer with 39.5 vol % silica particles is up to 15 times higher than that of the cross-linked PMEA with no silica particles and the material demonstrates stress-strain behavior that is similar to that of biological soft tissue, which exhibits nonlinear elasticity. In addition, the composite elastomer shows the potential to be an antithrombotic property, while the results of the platelet adhesion test of the composite elastomer show that the number of adhered platelets is not significantly affected by the silica addition. As the composite elastomer can be rapidly three-dimensional-printed into complex geometries with high-resolution features, it is expected to contribute to the development of medical devices from readily available materials.
Collapse
Affiliation(s)
- Fumio Asai
- Department of Molecular & Macromolecular Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Research & Development Center, Unitika Ltd., 23, Uji-Kozakura, Uji-Shi, Kyoto 611-0021, Japan
| | - Takahiro Seki
- Department of Molecular & Macromolecular Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Ayae Sugawara-Narutaki
- Department of Energy Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Kazuhide Sato
- Nagoya University Institute for Advanced Research, S-YLC, Nagoya 464-8601, Japan
- Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Jérémy Odent
- Laboratory of Polymeric and Composite Materials, Center of Innovation and Research in Materials and Polymers, University of Mons, 20, Place du Parc, 7000 Mons, Belgium
| | - Olivier Coulembier
- Laboratory of Polymeric and Composite Materials, Center of Innovation and Research in Materials and Polymers, University of Mons, 20, Place du Parc, 7000 Mons, Belgium
| | - Jean-Marie Raquez
- Laboratory of Polymeric and Composite Materials, Center of Innovation and Research in Materials and Polymers, University of Mons, 20, Place du Parc, 7000 Mons, Belgium
| | - Yukikazu Takeoka
- Department of Molecular & Macromolecular Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| |
Collapse
|
40
|
Khan KA, Khan GM, Shah KU, Niazi ZR, Khan H, Ahmad A, -Ur-Rehman F, Shah PA, Ullah A, Tahir M, Jan SU. Design, Preparation and evaluation of various parameters of controlled release matrices of losartan potassium using polymers combination. Pak J Pharm Sci 2020; 33:2231-2237. [PMID: 33832895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Controlled release formulations are administered once a day and reduce frequency of dose and ensuring patient's compliance. In the current research controlled release matrices of losartan potassium formulated with polymeric combinations of ethocel grade 7 with carbopol 934P NF using different concentrations of polymers. In some polymeric tablets, Co-excipients like CMC, Starch, HPMC was added by replacing of 10% of filler in formulations at 10:5. Tablets were prepared by direct compression method and evaluated for physicochemical characteristics. USP Method-1 (rotating basket method) was used to carry out dissolution study in phosphate buffer pH 6.8. Drug release kinetics determined and comparison of dissolution patterns was done with reference tablets. The polymeric combinations well retarded drug release and drug was released by anamolous non-fickian diffusion mechanism. Dissolution profiles of tested tablets and reference tablets were found not similar. Drug release rate was increased by co-excipients. It was concluded from this research work that this polymeric combination can be used efficiently in designing of controlled release martices.
Collapse
Affiliation(s)
| | - Gul Majid Khan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | | | | | - Haroon Khan
- Faculty of Pharmacy, Gomal University, D.I.Khan, KPK, Pakistan
| | - Ashfaq Ahmad
- Department of Pharmacy, University of Swabi, KPK, Pakistan
| | | | | | - Aziz Ullah
- Faculty of Pharmacy, Gomal University, D.I.Khan, KPK, Pakistan
| | - Muhammad Tahir
- Faculty of Pharmacy, Gomal University, D.I.Khan, KPK, Pakistan
| | - Syed Umer Jan
- Faculty of Pharmacy and Health Sciences, University of Balochistan, Quetta, Pakistan
| |
Collapse
|
41
|
Koschitzki F, Wanka R, Sobota L, Koc J, Gardner H, Hunsucker KZ, Swain GW, Rosenhahn A. Amphiphilic Dicyclopentenyl/Carboxybetaine-Containing Copolymers for Marine Fouling-Release Applications. ACS Appl Mater Interfaces 2020; 12:34148-34160. [PMID: 32567832 DOI: 10.1021/acsami.0c07599] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Zwitterionic materials received great attention in recent studies due to their high antifouling potential, though their application in practical coatings is still challenging. Amphiphilic polymers have been proven to be an effective method to combat fouling in the marine environment. This study reports the incorporation of small amounts of zwitterionic carboxybetaine methacrylate (CBMA) into hydrophobic ethylene glycol dicyclopentenyl ether acrylate (DCPEA). A new set of copolymers with varying amphiphilicities was synthesized and coated on chemically modified glass substrates. The antifouling capabilities were assessed against the diatom Navicula perminuta and multiple species in the field. Unsurprisingly, high diatom densities were observed on the hydrophobic control coatings. The integration of small zwitterionic contents of only ∼5 wt % was already sufficient to rapidly form a hydrophilic interface that led to a strong reduction of fouling. Ultralow fouling was also observed for the pure zwitterionic coatings in laboratory experiments, but it failed when tested in the real ocean environment. We noticed that the ability to absorb large amounts of water and the diffuse nature of the interphase correlate with the adsorption of silt, which can mask the hydrophilic chemistries and facilitate the settlement of organisms. The amphiphilic coatings showed low fouling in dynamic short-term field exposures, which could be explained by the reduced tendency of the coatings for sediment adsorption.
Collapse
Affiliation(s)
- Florian Koschitzki
- Analytical Chemistry-Biointerfaces, Ruhr University Bochum, 44780 Bochum, Germany
| | - Robin Wanka
- Analytical Chemistry-Biointerfaces, Ruhr University Bochum, 44780 Bochum, Germany
| | - Lennart Sobota
- Analytical Chemistry-Biointerfaces, Ruhr University Bochum, 44780 Bochum, Germany
| | - Julian Koc
- Analytical Chemistry-Biointerfaces, Ruhr University Bochum, 44780 Bochum, Germany
| | - Harrison Gardner
- Center for Corrosion and Biofouling Control, Florida Institute of Technology, Melbourne, Florida 32901, United States
| | - Kelli Z Hunsucker
- Center for Corrosion and Biofouling Control, Florida Institute of Technology, Melbourne, Florida 32901, United States
| | - Geoffrey W Swain
- Center for Corrosion and Biofouling Control, Florida Institute of Technology, Melbourne, Florida 32901, United States
| | - Axel Rosenhahn
- Analytical Chemistry-Biointerfaces, Ruhr University Bochum, 44780 Bochum, Germany
| |
Collapse
|
42
|
Park HS, Fan Z, Zhu RY, Yu JQ. Distal γ-C(sp 3 )-H Olefination of Ketone Derivatives and Free Carboxylic Acids. Angew Chem Int Ed Engl 2020; 59:12853-12859. [PMID: 32385966 PMCID: PMC7494175 DOI: 10.1002/anie.202003271] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/08/2020] [Indexed: 12/27/2022]
Abstract
Reported herein is the distal γ-C(sp3 )-H olefination of ketone derivatives and free carboxylic acids. Fine tuning of a previously reported imino-acid directing group and using the ligand combination of a mono-N-protected amino acid (MPAA) and an electron-deficient 2-pyridone were critical for the γ-C(sp3 )-H olefination of ketone substrates. In addition, MPAAs enabled the γ-C(sp3 )-H olefination of free carboxylic acids to form diverse six-membered lactones. Besides alkyl carboxylic acids, benzylic C(sp3 )-H bonds also could be functionalized to form 3,4-dihydroisocoumarin structures in a single step from 2-methyl benzoic acid derivatives. The utility of these protocols was demonstrated in large scale reactions and diversification of the γ-C(sp3 )-H olefinated products.
Collapse
Affiliation(s)
- Han Seul Park
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Zhoulong Fan
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Ru-Yi Zhu
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| |
Collapse
|
43
|
Hao S, Cai Z, Cao Y, Du X. Design, Synthesis, and Acaricidal Activity of Phenyl Methoxyacrylates Containing 2-Alkenylthiopyrimidine. Molecules 2020; 25:molecules25153379. [PMID: 32722453 PMCID: PMC7435930 DOI: 10.3390/molecules25153379] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/21/2020] [Accepted: 07/24/2020] [Indexed: 11/16/2022] Open
Abstract
A series of novel phenyl methoxyacrylate derivatives containing a 2-alkenylthiopyrimidine substructure were designed, synthesized, and evaluated in terms of acaricidal activity. The structures of the title compounds were identified by 1H NMR, 13C NMR and high-resolution mass spectra (HRMS). Compound (E)-methyl 2-(2-((2-(3,3-dichloroallylthio)-6-(trifluoromethyl)pyrimidin-4-yloxy)methyl)phenyl)-3-methoxyacr-ylate (4j) exhibited significant acaricidal activity against Tetranychus cinnabarinus (T. cinnabarinus) in greenhouse tests possessing nearly twice the larvicidal and ovicidal activity compared to fluacrypyrim. Furthermore, the results of the field trials demonstrated that compound 4j could effectively control Panonychuscitri with long-lasting persistence and rapid action. The toxicology data in terms of LD50 value confirmed that compound 4j has a relatively low acute toxicity to mammals, birds, and honeybees.
Collapse
Affiliation(s)
- Shulin Hao
- Correspondence: (S.H.); (X.D.); Tel.: +86-571-88320430 (X.D.)
| | | | | | - Xiaohua Du
- Correspondence: (S.H.); (X.D.); Tel.: +86-571-88320430 (X.D.)
| |
Collapse
|
44
|
Ali L, Ahmad M, Aamir MN, Minhas MU, Shah HH, Shah MA. Cross-linked pH-sensitive pectin and acrylic acid based hydrogels for controlled delivery of metformin. Pak J Pharm Sci 2020; 33:1483-1491. [PMID: 33583778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The purpose of present study is to load Metformin HCl into pH-sensitive hydrogels to have sustained release over a period of time. The hydrogel was synthesized from naturally occurring polysaccharide pectin and monomer acrylic acid (AA) using ethylene glycol dimethacrylate (EGDMA) as cross-linker under controlled conditions for polymerization at 45°C for one hr, 50°C for two hrs, 55°C for three hrs, 60°C for four hrs and finally 65˚C for 12 hrs. Hydrogels were characterized for dynamic/equilibrium swelling, sol-gel fraction analysis, diffusion coefficient and percentage porosity. Hydrogels were tested by FTIR, XRD and SEM for structure and surface morphology respectively. Experimental in-vitro drug release data was applied to kinetic models. Formation of strong bonding between pectin and AA was supported by FTIR. The intensity of XRD peaks was reduced in non-loaded and loaded hydrogels compared to active drug substance. The non-loaded hydrogel showed discrete porous structure whereas loaded hydrogels were fibrous and smooth. Hydrogels showed higher swelling in the solutions of pH 6.5 and 7.5 as compared to in the solutions of pH 1.2 and 5.5. The diffusion coefficient decreases with the increase of AA and pectin concentrations. It was observed upon increasing the EGDMA concentration porosity decreases. The release of drug from all compositions of hydrogels took place through non-Fickian diffusion mechanism.
Collapse
Affiliation(s)
- Liaqat Ali
- Faculty of Pharmacy & Alternative Medicine, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Mahmood Ahmad
- Faculty of Pharmacy & Alternative Medicine, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Muhammad Naeem Aamir
- Faculty of Pharmacy & Alternative Medicine, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | | | - Hassan Haidar Shah
- Primary & Secondary Healthcare Department, Government of Punjab, Pakistan
| | - Muhammad Ajmal Shah
- Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan
| |
Collapse
|
45
|
MacDonald JG, Rodriguez K, Quirk S. An Oxygen Delivery Polymer Enhances Seed Germination in a Martian-like Environment. Astrobiology 2020; 20:846-863. [PMID: 32196355 PMCID: PMC7368388 DOI: 10.1089/ast.2019.2056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 02/13/2020] [Indexed: 06/10/2023]
Abstract
Critical to the success of establishing a sustainable human presence on Mars is the ability to economically grow crop plants. Several environmental factors make it difficult to fully rely on local resources for agriculture. These include nutrient sparse regolith, low and fluctuating temperatures, a high amount of ultraviolet radiation, and water trapped locally in the form of ice or metal oxides. While the 96% CO2 martian atmosphere is ideal to support photosynthesis, high CO2 concentrations inhibit germination. An added difficulty is the fact that a vast majority of crop plants require oxygen for germination. Here, we report the production of a polymer-based oxygen delivery system that supports the germination and growth of cress seeds (Lepidium sativum) in a martian regolith simulant under a martian atmosphere at 101 kPa. The oxygen-donating system is based on a low-density lightly cross-linked polyacrylate that is foamed and converted into a dry powder. It is lightweight, added in low amounts to regolith simulant, and efficiently donates enough oxygen throughout the volume of hydrated regolith simulant to fully support seed germination and plant growth. Germination rates, plant development, and plant mass are nearly identical for L. sativum grown in 100% CO2 in the presence of the oxygen-donating lightly cross-linked polyacrylate compared with plants grown in air. The polymer system also serves to protect root structures and better anchors plants in the regolith simulant.
Collapse
|
46
|
Fuse S, Moriya W, Sato S, Nakamura H. Investigation into the influence of an acrylic acid acceptor in organic D-π-A sensitizers against phototoxicity. Bioorg Med Chem 2020; 28:115558. [PMID: 32546300 DOI: 10.1016/j.bmc.2020.115558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 11/19/2022]
Abstract
Photodynamic therapy (PDT) is a non-invasive, selective, and cost-effective cancer therapy. We previously reported that thiophene-based organic D-π-A sensitizers consist of an electron-donating (D) moiety, a π-conjugated bridge (π) moiety, and an electron-accepting (A) moiety, and are readily accessible and stable templates for photosensitizers that could be used in PDT. In addition, acrylic acid acceptor-containing photosensitizers exert a high level of phototoxicity. This study was an investigation into 1) the possibility of increasing phototoxicity by introducing another carboxyl group or by replacing a carboxyl group with a pyridinium group, and 2) the importance of an alkene in the acrylic acid acceptor for phototoxicity. A review of the design, synthesis, and evaluation of sensitizers revealed that neither dicarboxylic acid nor pyridinium photosensitizers enhance phototoxicity. An evaluation of a photosensitizer without an alkene in the acrylic acid moiety revealed that the alkene was not indispensable in the pursuit of phototoxicity. The obtained results provided new insight into the design of ideal D-π-A photosensitizers for PDT.
Collapse
Affiliation(s)
- Shinichiro Fuse
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan.
| | - Wataru Moriya
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan; School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
| | - Shinichi Sato
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
| | - Hiroyuki Nakamura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan.
| |
Collapse
|
47
|
Vasquez AM, Gurak JA, Joe CL, Cherney EC, Engle KM. Catalytic α-Hydroarylation of Acrylates and Acrylamides via an Interrupted Hydrodehalogenation Reaction. J Am Chem Soc 2020; 142:10477-10484. [PMID: 32379433 PMCID: PMC7293711 DOI: 10.1021/jacs.0c03040] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The palladium-catalyzed, α-selective hydroarylation of acrylates and acrylamides is reported. Under optimized conditions, this method is highly tolerant of a wide range of substrates including those with base sensitive functional groups and/or multiple enolizable carbonyl groups. A detailed mechanistic study was undertaken, and the high selectivity of this transformation was shown to be enabled by the formation of a [PdII(Ar)(H)] intermediate, which performs selective hydride insertion into the β-position of α,β-unsaturated carbonyl compounds.
Collapse
Affiliation(s)
- Alena M. Vasquez
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - John A. Gurak
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Candice L. Joe
- Chemistry Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Emily C. Cherney
- Discovery Chemistry, Bristol Myers Squibb, US Rt. 206 & Province Line Road, Princeton, New Jersey 08540, United States
| | - Keary M. Engle
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| |
Collapse
|
48
|
Ignjatović J, Maljurić N, Golubović J, Ravnikar M, Petković M, Savodnik N, Štrukelj B, Otašević B. Characterization of Biomolecules with Antibiotic Activity from Endophytic Fungi Phomopsis Species. Acta Chim Slov 2020; 67:445-461. [PMID: 33855554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023] Open
Abstract
Recently, growing interest is devoted to investigation of bioactive secondary metabolites of endophytic fungi. Thus, as an extension to our previous achievements related to antimicrobial potential of endophytic fungi, Phomopsis species isolated from conifer needles was selected as appropriately promising natural source for drug discovery. Its dichloromethane and ethanol extracts considerably inhibited growth of Escherichia coli and Staphylococcus aureus. Moreover, the individual compounds of dichloromethane extract have been separated, collected and purified using semi preparative liquid chromatographic analysis and comprehensively characterized using mass spectrometry (MS) and nuclear magnetic resonance spectroscopy (NMR). Based on their antimicrobial activity and unique structural characteristics in comparison with well-established drugs from the same therapeutic category, two dominant compounds (Z)-(Z)-2-acetoxyprop-1-en-1-yl-3-(3-((E)-3,4-dihydroxypent-1-en-1-yl)oxiran-2-yl)acrylate (denoted as 325-3) and (Z)-(Z)-2-acetoxyprop-1-en-1-yl 3-(3-((E)-4-hydroxy-3-oxopent-1-en-1-yl)oxiran-2-yl)acrylate (denoted as 325-5) were recognized as valuable leading structures for future discovery of novel antibiotics.
Collapse
|
49
|
Kaushik S, Gandhi S, Chauhan M, Ma S, Das S, Ghosh D, Chandrasekharan A, Alam MB, Parmar AS, Sharma A, Santhoshkumar TR, Suhag D. Water-Templated, Polysaccharide-rich Bioartificial 3D Microarchitectures as Extra-Cellular Matrix Bioautomatons. ACS Appl Mater Interfaces 2020; 12:20912-20921. [PMID: 32255604 DOI: 10.1021/acsami.0c01012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This is the first report of exploiting the "quasi-spherical" shape of water molecules for recapitulating a true human extracellular matrix (ECM). Herein, water behaved as a quasi-spherical porogen, for engineering polysaccharide-rich and chemically defined 3D-microarchitecture, with semi-interpenetrating networks (S-IPNs). Furthermore, their viscoelastic behavior along with a heterogeneous, fibroporous morphology, facilitated instructive, self-remodeling of the bioartificial scaffolds, thence effectively permitting and promoting the growth of 3D tumor spheroids of divergent origins. The hybrid composites displayed reproducible, uniform tumor spheroids with a Z-depth of ∼65 ± 2 μm in case of human adenocarcinoma (DLD-1) and ∼54 ± 3 μm for human glioblastoma cells (U-251) (vs. nonuniform spheroids, on Agarose matrix). Thereafter, their capacity for anticancer drug screening was examined using limited cancer drugs. The conflicting drug screening results for Etoposide's reduced efficacy on glioblastoma cells cultured on our 3D matrix could be ascribed to decreased drug access and thus lower ingression. Nonetheless, adenocarcinoma's resistance to Camptothecin was paralleled. Moreover, their potential for real-time, high-content, phenotypic precision oncology was affirmed by the exceptional transparency of the synthesized composite. Since this 3D microarchitecture typifies ECM bioautomaton, this matrix can also be wielded for precision oncology.
Collapse
Affiliation(s)
- Swati Kaushik
- Institute of Nano Science & Technology, Habitat Centre, Phase 10, Sector 64, Sahibzada Ajit Singh Nagar, Mohali-140307, Punjab, India
- Rajiv Gandhi Centre for Biotechnology, Poojapura, Thycaud, Thiruvananthapuram, Kerala-695014, India
| | - Sonu Gandhi
- DBT-National Institute of Animal Biotechnology, Hyderabad-500032, Telangana, India
| | - Mehak Chauhan
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Sector-125, Noida-201313, Uttar Pradesh, India
| | - Shaohua Ma
- Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen, 518055, China
| | - Souvik Das
- Lab MP3CV, EA7517, University Center for Health Research (CURS), University of Picardie Jules Verne, Amiens 80054, France
| | - Deepa Ghosh
- Institute of Nano Science & Technology, Habitat Centre, Phase 10, Sector 64, Sahibzada Ajit Singh Nagar, Mohali-140307, Punjab, India
| | - Aneesh Chandrasekharan
- Rajiv Gandhi Centre for Biotechnology, Poojapura, Thycaud, Thiruvananthapuram, Kerala-695014, India
| | - Md Bayazeed Alam
- Department of Physics, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Avanish Singh Parmar
- Department of Physics, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Alpana Sharma
- Department of Biochemistry, All India Institute of Medical Sciences, Sri Aurobindo Marg, Ansari Nagar, Ansari Nagar East, New Delhi-110029, India
| | - T R Santhoshkumar
- Rajiv Gandhi Centre for Biotechnology, Poojapura, Thycaud, Thiruvananthapuram, Kerala-695014, India
| | - Deepa Suhag
- Amity Institute of Biotechnology, Amity University Haryana, Amity Education Valley Gurugram, Manesar, Panchgaon, Haryana 122413, India
| |
Collapse
|
50
|
Hamed R, Kamal A, Alkilani AZ. Gelation and rheological characterization of Carbopol® in simulated gastrointestinal fluid of variable chemical properties. Pak J Pharm Sci 2020; 33:923-928. [PMID: 33191214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Carbopol® is a hydrophilic polymer commonly used in the preparation of oral controlled-release matrix tablets. These matrices are subjected to dissolution testing to investigate the rate and mechanism of drug release. The rate of drug release from these matrices is influenced by the viscoelastic properties of the gel layer formed upon hydration and surrounded tablet core. This study evaluates the gelation behavior and rheological characterization of Carbopol® in dispersion media, of varied chemical properties, commonly used in dissolution testing. The rheological properties of Carbopol® polymer underwent gelation were determined using a controlled-stress rheometer. Carbopol® gelation was not found in simulated gastric fluid of low pH (1.2-5.0) and simulated intestinal fluid of pH (5.0-6.5) during fasted (Fa) and fed (Fe) conditions. However, in water and at high pH (6.8-7.8), gelation occurred in phosphate buffers of high buffering capacity (β). Furthermore, no gelation was found in sodium chloride solutions of different ionic strengths (µ). These results highlight the importance of investigating the gelation behavior and rheological characterization of Carbopol® in dispersion media prior to dissolution testing. These preliminary studies can give an insight on the formation/absence of the gel layer around Carbopol® matrices which is responsible for controlling the release of drugs.
Collapse
Affiliation(s)
- Rania Hamed
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| | - Areej Kamal
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| | - Ahlam Zaid Alkilani
- Department of Pharmacy, Faculty of Pharmacy, Zarqa University, Zarqa, Jordan
| |
Collapse
|