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Zhang Q, Li H, Kang Y, Cui Q, Zhang H, Li L. Tunable Fluorescence, Morphology, and Antibacterial Behaviors of Conjugated Oligomers via Host-Guest Supramolecular Self-Assembly. ACS APPLIED BIO MATERIALS 2024; 7:2533-2543. [PMID: 38526040 DOI: 10.1021/acsabm.4c00133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Host-guest supramolecular self-assembly has become one facile but efficient way to regulate the optical properties of conjugated oligomers and construct promising photofunctional materials. Herein, we design two linear conjugated oligomers terminated with two or four pyridinium moieties, which show different 1:1 'head-to-tail' binding patterns with cucurbit[8]uril (CB[8]) to form host-guest supramolecules. After being encapsulated in the hydrophobic cavity of the CB[8] host, the fluorescence emission of the conjugated oligomers undergoes significant changes, resulting in tunable fluorescence color with enhanced quantum yields. Triggered by the aggregation of supramolecules, the regular or rigid binding modes lead to the formation of cuboids and spheroids in nanoscale, respectively. Due to the macrocyclic-confinement effect, the light-driven reactive oxygen species (ROS) production of the host-guest complex is increased significantly, thereby improving the photodynamic antibacterial performance toward Staphylococcus aureus (S. aureus).
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Affiliation(s)
- Qian Zhang
- Key Laboratory of Advanced Materials and Devices for Post-Moore Chips, Ministry of Education, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Hui Li
- Key Laboratory of Advanced Materials and Devices for Post-Moore Chips, Ministry of Education, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Yuetong Kang
- Key Laboratory of Advanced Materials and Devices for Post-Moore Chips, Ministry of Education, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Qianling Cui
- Key Laboratory of Advanced Materials and Devices for Post-Moore Chips, Ministry of Education, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Hean Zhang
- Key Laboratory of Advanced Materials and Devices for Post-Moore Chips, Ministry of Education, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Lidong Li
- Key Laboratory of Advanced Materials and Devices for Post-Moore Chips, Ministry of Education, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
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2
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Huang R, Yang S, Hu Z, Peng B, Zhu Y, Cheng T, Liu G. Bridging the incompatibility gap in dual asymmetric catalysis over a thermoresponsive hydrogel-supported catalyst. Commun Chem 2024; 7:2. [PMID: 38172516 PMCID: PMC10764871 DOI: 10.1038/s42004-023-01085-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024] Open
Abstract
The integration of dual asymmetric catalysis is highly beneficial for the synthesis of organic molecules with multiple stereocenters. However, two major issues that need to be addressed are the intrinsic deactivation of dual-species and the extrinsic conflict of reaction conditions. To overcome these concerns, we have utilized the compartmental and thermoresponsive properties of poly(N-isopropylacrylamide) (PNIPAM) to develop a cross-linked PNIPAM-hydrogel-supported bifunctional catalyst. This catalyst is designed with Rh(diene) species situated on the outer surface and Ru(diamine) species positioned within the interior of the hydrogel. The compartmental function of PNIPAM in the middle overcomes intrinsic mutual deactivations between the dual-species. The thermoresponsive nature of PNIPAM allows for precise control of catalytic pathways in resolving external conflicts by controlling the reaction switching between an Rh-catalyzed enantioselective 1,4-addition at 50°C and a Ru-catalyzed asymmetric transfer hydrogenation (ATH) at 25°C. As we envisioned, this sequential 1,4-addition/reduction dual enantioselective cascade reaction achieves a transformation from incompatibility to compatibility, resulting in direct access to γ-substituted cyclic alcohols with dual stereocenters in high yields and enantio/diastereoselectivities. Mechanistic investigation reveals a reversible temperature transition between 50°C and 25°C, ensuring a cascade process comprising a 1,4-addition followed by the ATH process.
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Affiliation(s)
- Renfu Huang
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, No.100 Guilin Rd, Shanghai, China
| | - Shoujin Yang
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, No.100 Guilin Rd, Shanghai, China
| | - Zhipeng Hu
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, No.100 Guilin Rd, Shanghai, China
| | - Bangtai Peng
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, No.100 Guilin Rd, Shanghai, China
| | - Yuanli Zhu
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, No.100 Guilin Rd, Shanghai, China
| | - Tanyu Cheng
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, No.100 Guilin Rd, Shanghai, China
| | - Guohua Liu
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, No.100 Guilin Rd, Shanghai, China.
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3
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Yuan R, Zhang Y, Liao L, Ge Y, Li W, Zhi Q. Biomineralization-Inspired Anti-Caries Strategy Based on Multifunctional Nanogels as Mineral Feedstock Carriers. Int J Nanomedicine 2023; 18:4933-4947. [PMID: 37693886 PMCID: PMC10488770 DOI: 10.2147/ijn.s418465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 08/28/2023] [Indexed: 09/12/2023] Open
Abstract
Background Dentin caries remains a significant public concern, with no clinically viable material that effectively combines remineralization and antimicrobial properties. To address this issue, this study focused on the development of a bio-inspired multifunctional nanogel with both antibacterial and biomineralization properties. Methods First, p(NIPAm-co-DMC) (PNPDC) copolymers were synthesized from N-isopropylacrylamide (NIPAm) and 2-methacryloyloxyethyl-trimethyl ammonium chloride (DMC). Subsequently, PNPDC was combined with γ-polyglutamic acid (γ-PGA) through physical cross-linking to form nanogels. These nanogels served as templates for the mineralization of calcium phosphate (Cap), resulting in Cap-loaded PNPDC/PGA nanogels. The nanogels were characterized using various techniques, including TEM, particle tracking analysis, XRD, and FTIR. The release properties of ions were also assessed. In addition, the antibacterial properties of the Cap-loaded PNPDC/PGA nanogels were evaluated using the broth microdilution method and a biofilm formation assay. The remineralization effects were examined on both demineralized dentin and type I collagen in vitro. Results PNPDC/PGA nanogels were successfully synthesized and loaded with Cap. The diameter of the Cap-loaded PNPDC/PGA nanogels was measured as 196.5 nm at 25°C and 162.3 nm at 37°C. These Cap-loaded nanogels released Ca2+ and PO43- ions quickly, effectively blocking dental tubules with a depth of 10 μm and promoting the remineralization of demineralized dentin within 7 days. Additionally, they facilitated the heavy intrafibrillar mineralization of type I collagen within 3 days. Moreover, the Cap-loaded nanogels exhibited MIC50 and MIC90 values of 12.5 and 50 mg/mL against Streptococcus mutans, respectively, with an MBC value of 100 mg/mL. At a concentration of 50 mg/mL, the Cap-loaded nanogels also demonstrated potent inhibitory effects on biofilm formation by Streptococcus mutans while maintaining good biocompatibility. Conclusion Cap-loaded PNPDC/PGA nanogels are a multifunctional biomimetic system with antibacterial and dentin remineralization effects. This strategy of using antibacterial nanogels as mineral feedstock carriers offered fresh insight into the clinical management of caries.
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Affiliation(s)
- Rui Yuan
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
| | - Yuwen Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
| | - Liqiong Liao
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, Guangdong, 510515, People’s Republic of China
| | - Yige Ge
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
| | - Weichang Li
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
| | - Qinghui Zhi
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
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4
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Zhang H, Wei W, Zhang KAI. Emerging conjugated polymers for heterogeneous photocatalytic chemical transformation. Chem Commun (Camb) 2023. [PMID: 37416940 DOI: 10.1039/d3cc02081a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
In recent decades, the efficient utilization of solar energy through heterogeneous photocatalytic chemical transformation has attracted much attention. As emerging metal-free, pure organic and heterogeneous photocatalysts, π-conjugated polymers (CPs) have been used in visible-light-driven chemical transformations due to their stability, high specific surface area, metal-free nature, and high structural designability. In this review, we summarize the synthesis protocols and design strategies for efficient CP-based photocatalysts based on the photocatalytic mechanisms. Then we highlight the key progress in light-driven chemical transformation using CPs developed by our group. Finally, we present the outlook and possible challenges for future progress of the field.
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Affiliation(s)
- Hao Zhang
- Department of Materials Science, Fudan University, Songhu Road 2005, Shanghai 200438, P. R. China.
| | - Wenxin Wei
- Department of Materials Science, Fudan University, Songhu Road 2005, Shanghai 200438, P. R. China.
| | - Kai A I Zhang
- Department of Materials Science, Fudan University, Songhu Road 2005, Shanghai 200438, P. R. China.
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5
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Li R, Heuer J, Kuckhoff T, Landfester K, Ferguson CTJ. pH-Triggered Recovery of Organic Polymer Photocatalytic Particles for the Production of High Value Compounds and Enhanced Recyclability. Angew Chem Int Ed Engl 2023; 62:e202217652. [PMID: 36749562 DOI: 10.1002/anie.202217652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/23/2023] [Accepted: 02/07/2023] [Indexed: 02/08/2023]
Abstract
Pseudo-homogeneous polymeric photocatalysts are an emerging class of highly efficient and tunable photocatalytic materials, where the photocatalytic centers are easily accessible. The creation of highly efficient photocatalytic materials that can be rapidly separated and recovered is one of the critical challenges in photocatalytic chemistry. Here, we describe pH-responsive photocatalytic nanoparticles that are active and well-dispersed under acidic conditions but aggregate instantly upon elevation of pH, enabling easy recovery. These responsive photocatalytic polymers can be used in various photocatalytic transformations, including CrVI reduction and photoredox alkylation of indole derivative. Notably, the cationic nature of the photocatalyst accelerates reaction rate of an anionic substrate compared to uncharged species. These photocatalytic particles could be readily recycled allowing multiple successive photocatalytic reactions with no clear loss in activity.
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Affiliation(s)
- Rong Li
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Julian Heuer
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Thomas Kuckhoff
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Katharina Landfester
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Calum T J Ferguson
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.,School of Chemistry, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK
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6
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Heuer J, Kuckhoff T, Li R, Landfester K, Ferguson CTJ. Tunable Photocatalytic Selectivity by Altering the Active Center Microenvironment of an Organic Polymer Photocatalyst. ACS APPLIED MATERIALS & INTERFACES 2023; 15:2891-2900. [PMID: 36594942 PMCID: PMC9869337 DOI: 10.1021/acsami.2c17607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
The favored production of one product over another is a major challenge in synthetic chemistry, reducing the formation of byproducts and enhancing atom efficacy. The formation of catalytic species that have differing reactivities based on the substrate being converted, has been targeted to selectively control reactions. Here, we report the production of photocatalytic self-assembled amphiphilic polymers, with either hydrophilic or hydrophobic microenvironments at the reactive center. Benzothiadiazole-based photocatalysts were polymerized into either the hydrophilic or the hydrophobic compartment of a diblock copolymer by RAFT polymerization. The difference in the reactivity of each microenvironment was dictated by the physical properties of the substrate. Stark differences in reactivity were observed for polar substrates, where a hydrophilic microenvironment was favored. Conversely, both microenvironments performed similarly for very hydrophobic substrates, showing that reagent partitioning is not the only factor that drives photocatalytic conversion. Furthermore, the use of secondary swelling solvents allowed an additional reagent exchange between the continuous phase and the heterogeneous photocatalyst, resulting in a significant 5-fold increase in conversion for a radical carbon-carbon coupling.
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Affiliation(s)
- Julian Heuer
- Max
Planck Institute for Polymer Research, Ackermannweg 10, Mainz55128, Germany
| | - Thomas Kuckhoff
- Max
Planck Institute for Polymer Research, Ackermannweg 10, Mainz55128, Germany
| | - Rong Li
- Max
Planck Institute for Polymer Research, Ackermannweg 10, Mainz55128, Germany
| | | | - Calum T. J. Ferguson
- Max
Planck Institute for Polymer Research, Ackermannweg 10, Mainz55128, Germany
- School
of Chemistry, University of Birmingham, Edgbaston, BirminghamB15 2TT, United
Kingdom
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7
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Li R, Landfester K, Ferguson CTJ. Temperature- and pH-Responsive Polymeric Photocatalysts for Enhanced Control and Recovery. Angew Chem Int Ed Engl 2022; 61:e202211132. [PMID: 36112056 PMCID: PMC10099588 DOI: 10.1002/anie.202211132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Indexed: 12/14/2022]
Abstract
The emergence of heterogeneous photocatalysis has facilitated redox reactions with high efficiency, without compromising the recyclability of the photocatalyst. Recently, stimuli-responsive heterogeneous photocatalytic materials have emerged as a powerful synthetic tool, with simple and rapid recovery, as well as an enhanced dynamic control over reactions. Stimuli-responsive polymers are often inexpensive and easy to produce. They can be switched from an active "on" state to an inert "off" state in response to external stimuli, allowing the production of photocatalyst with adaptability, recyclability, and orthogonal control on different chemical reactions. Despite this versatility, the application of artificial smart material in the field of heterogeneous photocatalysis has not yet been maximized. In this Minireview, we will examine the recent developments of this emerging class of stimuli-responsive heterogeneous photocatalytic systems. We will discuss the synthesis route of appending photoactive components into different triggerable systems and, in particular, the controlled activation and recovery of the materials.
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Affiliation(s)
- Rong Li
- Max Planck Institute for Polymer Research, Mainz, Germany
| | | | - Calum T J Ferguson
- Department School of Chemistry, University of Birmingham, Birmingham, UK.,Max Planck Institute for Polymer Research, Mainz, Germany
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8
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Peng R, Luo Y, Cui Q, Zhang H, Li L. Covalent Organic Frameworks as Efficient Photoinitiators and Cross-Linkers To Fabricate Highly Stretchable Hydrogels. ACS APPLIED MATERIALS & INTERFACES 2022; 14:49254-49263. [PMID: 36257918 DOI: 10.1021/acsami.2c17114] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In this work, two kinds of imine-type covalent organic framework (COF) nanoparticles are demonstrated as efficient photocatalytic initiators to trigger the free-radical polymerization of acrylamide (AM) to prepare polyacrylamide (PAM) hydrogels under visible light irradiation, without any assistance from the co-initiator. Simultaneously, the COF nanoparticles bearing vinyl side groups (COF-V) promote covalent cross-linking of the polymer chains, which significantly reinforces the mechanical properties of the nanocomposite hydrogel. The obtained PAM/COF-V hydrogel is highly stretchable with an extraordinary elongation up to 3300% strain. On the other hand, the COF nanoparticles modified with methoxy moieties (COF-OMe) endow the resulting PAM/COF-OMe hydrogel with a promising fluorescence feature. In addition, this strategy provides a visible-light-regulated photocatalytic polymerization approach with a simplified recipe to fabricate COF-based nanocomposite hydrogels or resins with diverse functions.
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Affiliation(s)
- Rui Peng
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Yufeng Luo
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Qianling Cui
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Hean Zhang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Lidong Li
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
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9
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Kim S, Landfester K, Ferguson CTJ. Hairy Conjugated Microporous Polymer Nanoparticles Facilitate Heterogeneous Photoredox Catalysis with Solvent-Specific Dispersibility. ACS NANO 2022; 16:17041-17048. [PMID: 36223132 PMCID: PMC9620398 DOI: 10.1021/acsnano.2c07156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Substrate accessibility is a key limiting factor for the efficiency of heterogeneous photoredox catalysis. Recently, a high photoactive surface area of conjugated microporous polymer nanoparticles (CMP NPs) has made them promising candidates for overcoming the mass transfer limitation to achieve high photocatalytic efficiency. However, this potential has not been realized due to limited dispersibility of CMP NPs in many solvents, particularly in water. Here, we report a polymer grafting strategy that furnishes versatile hairy CMP NPs with enhanced solvent-specific dispersibility. The method associates hundreds of solvent-miscible repeating units with one chain end of the photocatalyst surface, allowing minimal modification to the CMP network that preserves its photocatalytic activity. Therefore, the enhanced dispersibility of hairy CMP NPs in organic solvents or aqueous solutions affords high efficiency in various photocatalytic organic transformations.
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Affiliation(s)
- Seunghyeon Kim
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Katharina Landfester
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Calum T. J. Ferguson
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United
Kingdom
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10
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Wu X, Wang S, Fang J, Chen H, Liu H, Li R. Enhanced Photocatalytic Efficiency in Visible-Light-Induced NADH Regeneration by Intramolecular Electron Transfer. ACS APPLIED MATERIALS & INTERFACES 2022; 14:38895-38904. [PMID: 35986690 DOI: 10.1021/acsami.2c11174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Inspired by natural photosynthesis, photocatalytic NADH regeneration has drawn increasing interest in the recent decade as it provides a perfect approach for NAD+ reduction into NADH, which can be further consumed by oxidordeuctase for enzymatic redox reactions. However, two issues still remain unsolved in this procedure. First, the photocatalytic efficiency in NAD+ hydrogenation requires further improvement. Second, the rhodium electron mediator [Cp*Rh(bpy)H2O]2+ (M), which is always required for selective 1,4-NADH regeneration, is difficult to recover because of its good solubility in aqueous solution. Given the high price of M, it is highly wasteful and inefficient if it only spends once. Here, we report a Cp*Rh(bpy)Cl implanted conjugated microporous polymer DTS/Rh@CMPs which can be employed as a highly effective visible light photocatalysts for in situ NADH regeneration without using additional M. In addition, the insertion of Rh complex into a polymer skeleton, as demonstrated in UV-vis, fluorescence, photocurrent and electrochemical impedance, dramatically improves the light absorption capacity and the electron separation and transfer efficiency. Compared with that of DTS@CMP-1 with M, an enhanced reaction yield of 33% was determined in DTS/Rh@CMP-1 suggesting that intramolecular electron transfer has a better activity than that of intermolecular electron transfer in photocatalytic NAD+ reduction. Moreover, as the Rh complex is rooted firmly in a polymer framework, negligible Rh loss and conversion decrease in NADH regeneration are observed. When the DTS/Rh@CMP-1 was coupled with yeast alcohol dehydrogenase (YADH, from Saccharomyces cerevisiae), 1.36 mM of methanol was accumulated, implying an excellent biocompatibility of DTS/Rh@CMP-1 and a high feasibility of photobiocatalysis for formaldehyde hydrogenation.
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Affiliation(s)
- Xiewen Wu
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, P. R. China
| | - Song Wang
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, P. R. China
| | - Jing Fang
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, P. R. China
| | - Hui Chen
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, P. R. China
- Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Hunan, Changsha 410082, P. R. China
- Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy, Hunan University, Changsha, Hunan 410082, P. R. China
| | - Hongbo Liu
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, P. R. China
- Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Hunan, Changsha 410082, P. R. China
- Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy, Hunan University, Changsha, Hunan 410082, P. R. China
| | - Run Li
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, P. R. China
- Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Hunan, Changsha 410082, P. R. China
- Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy, Hunan University, Changsha, Hunan 410082, P. R. China
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11
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Wu C, Teng Z, Yang C, Chen F, Yang HB, Wang L, Xu H, Liu B, Zheng G, Han Q. Polarization Engineering of Covalent Triazine Frameworks for Highly Efficient Photosynthesis of Hydrogen Peroxide from Molecular Oxygen and Water. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2110266. [PMID: 35524761 DOI: 10.1002/adma.202110266] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 04/25/2022] [Indexed: 06/14/2023]
Abstract
Two-electron oxygen photoreduction to hydrogen peroxide (H2 O2 ) is seriously inhibited by its sluggish charge kinetics. Herein, a polarization engineering strategy is demonstrated by grafting (thio)urea functional groups onto covalent triazine frameworks (CTFs), giving rise to significantly promoted charge separation/transport and obviously enhanced proton transfer. The thiourea-functionalized CTF (Bpt-CTF) presents a substantial improvement in the photocatalytic H2 O2 production rate to 3268.1 µmol h-1 g-1 with no sacrificial agents or cocatalysts that is over an order of magnitude higher than unfunctionalized CTF (Dc-CTF), and a remarkable quantum efficiency of 8.6% at 400 nm. Mechanistic studies reveal the photocatalytic performance is attributed to the prominently enhanced two-electron oxygen reduction reaction by forming endoperoxide at the triazine unit and highly concentrated holes at the thiourea site. The generated O2 from water oxidation is subsequently consumed by the oxygen reduction reaction (ORR), thereby boosting overall reaction kinetics. The findings suggest a powerful functional-groups-mediated polarization engineering method for the development of highly efficient metal-free polymer-based photocatalysts.
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Affiliation(s)
- Chongbei Wu
- Key Laboratory of Cluster Science, Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Department of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Zhenyuan Teng
- Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu, 804-8550, Japan
| | - Chao Yang
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Fangshuai Chen
- Key Laboratory of Cluster Science, Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Department of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Hong Bin Yang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Lei Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230022, P. R. China
| | - Hangxun Xu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230022, P. R. China
| | - Bin Liu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Gengfeng Zheng
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Qing Han
- Key Laboratory of Cluster Science, Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Department of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
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12
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Zhang M, Duan X, Zhu Y, Yan Y, Zhao T, Liu M, Jiang L. Highly Selective Semihydrogenation via a Wettability-Regulated Mass Transfer Process. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Minghui Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, P. R. China
- School of Pharmacy, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, P. R. China
| | - Xiaozheng Duan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Yunbo Zhu
- School of Pharmacy, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, P. R. China
| | - Yaming Yan
- School of Pharmacy, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, P. R. China
| | - Tianyi Zhao
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, P. R. China
| | - Mingjie Liu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, P. R. China
| | - Lei Jiang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, P. R. China
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13
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Wei W, Mazzotta F, Lieberwirth I, Landfester K, Ferguson CTJ, Zhang KAI. Aerobic Photobiocatalysis Enabled by Combining Core-Shell Nanophotoreactors and Native Enzymes. J Am Chem Soc 2022; 144:7320-7326. [PMID: 35363487 PMCID: PMC9052756 DOI: 10.1021/jacs.2c00576] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Biocatalysis has become a powerful tool in synthetic chemistry, where enzymes are used to produce highly selective products under mild conditions. Using photocatalytically regenerated cofactors in synergistic combination with enzymes in a cascade fashion offers an efficient synthetic route to produce specific compounds. However, the combination of enzymes and photocatalysts has been limited due to the rapid degradation of the biomaterials by photogenerated reactive oxygen species, which denature and deactivate the enzymatic material. Here, we design core-shell structured porous nano-photoreactors for highly stable and recyclable photobiocatalysis under aerobic conditions. The enzymatic cofactor NAD+ from NADH can be efficiently regenerated by the photoactive organosilica core, while photogenerated active oxygen species are trapped and deactivated through the non-photoactive shell, protecting the enzymatic material. The versatility of these photocatalytic core-shell nanoreactors was demonstrated in tandem with two different enzymatic systems, glycerol dehydrogenase and glucose 1-dehydrogenase, where long-term enzyme stability was observed for the core-shell photocatalytic system.
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Affiliation(s)
- Wenxin Wei
- Max
Planck institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Francesca Mazzotta
- Max
Planck institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Ingo Lieberwirth
- Max
Planck institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Katharina Landfester
- Max
Planck institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany,
| | - Calum T. J. Ferguson
- Max
Planck institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany,
| | - Kai A. I. Zhang
- Max
Planck institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany,Department
of Materials Science, Fudan University, 200433 Shanghai, People’s Republic of China,;
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14
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Zhang Z, Jia J, Zhi Y, Ma S, Liu X. Porous organic polymers for light-driven organic transformations. Chem Soc Rev 2022; 51:2444-2490. [PMID: 35133352 DOI: 10.1039/d1cs00808k] [Citation(s) in RCA: 61] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
As a new generation of porous materials, porous organic polymers (POPs), have recently emerged as a powerful platform of heterogeneous photocatalysis. POPs are constructed using extensive organic synthesis methodologies, with various functional organic units being connected via high-energy covalent bonds. This review systematically presents the recent advances in POPs for visible-light driven organic transformations. Herein, we firstly summarize the common construction strategies for POP-based photocatalysts based on two major approaches: pre-design and post-modification; secondly, we categorize and summarize the synthesis methods and organic reaction types for constructing various types of POPs. We then classify and introduce the specific reactions of current light-driven POP-mediated organic transformations. Finally, we outline the current state of development and the problems faced in light-driven organic transformations by POPs, and we present some perspectives to motivate the reader to explore solutions to these problems and confront the present challenges in the development process.
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Affiliation(s)
- Zhenwei Zhang
- College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
| | - Ji Jia
- College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
| | - Yongfeng Zhi
- College of Chemistry, Jilin University, Changchun, 130012, P. R. China. .,Department of Materials Science & Engineering, National University of Singapore, Engineering Drive 1, Singapore 117575, Singapore
| | - Si Ma
- College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
| | - Xiaoming Liu
- College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
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15
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Torregrosa-Chinillach A, Chinchilla R. Visible Light-Induced Aerobic Oxidative Dehydrogenation of C-N/C-O to C=N/C=O Bonds Using Metal-Free Photocatalysts: Recent Developments. Molecules 2022; 27:497. [PMID: 35056812 PMCID: PMC8780101 DOI: 10.3390/molecules27020497] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 12/31/2021] [Accepted: 01/11/2022] [Indexed: 12/14/2022] Open
Abstract
Performing synthetic transformation using visible light as energy source, in the presence of a photocatalyst as a promoter, is currently of high interest, and oxidation reactions carried out under these conditions using oxygen as the final oxidant are particularly convenient from an environmental point of view. This review summarizes the recent developments achieved in the oxidative dehydrogenation of C-N and C-O bonds, leading to C=N and C=O bonds, respectively, using air or pure oxygen as oxidant and metal-free homogeneous or recyclable heterogeneous photocatalysts under visible light irradiation.
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Affiliation(s)
| | - Rafael Chinchilla
- Department of Organic Chemistry, Faculty of Sciences, Institute of Organic Synthesis (ISO), University of Alicante, Apdo. 99, 03080 Alicante, Spain;
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16
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Behere RP, Laxmi R, Gupta N, Sharma U, Das S, Kuila BK. Donor–acceptor organic nanostructure based on conjugated polymer for improving visible-light-driven photocatalytic activity towards degradation of dye in aqueous medium. NEW J CHEM 2022. [DOI: 10.1039/d2nj04262b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Hybrid donor–acceptor nanostructures based on P3HT with improved light harvesting properties were employed for organic dye degradation.
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Affiliation(s)
- Ravi Prakash Behere
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Raj Laxmi
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Neelam Gupta
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Uttam Sharma
- Department of Ceramic Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh 221005, India
| | - Santanu Das
- Department of Ceramic Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh 221005, India
| | - Biplab Kumar Kuila
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
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17
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Zhu H, Cai S, Liao G, Gao ZF, Min X, Huang Y, Jin S, Xia F. Recent Advances in Photocatalysis Based on Bioinspired Superwettabilities. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04049] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hai Zhu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Education, Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan 430074, People’s Republic of China
- China State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, People’s Republic of China
| | - Si Cai
- Key Laboratory of Catalysis and Energy Materials Chemistry of Education, Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan 430074, People’s Republic of China
| | - Guangfu Liao
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan 430074, People’s Republic of China
| | - Zhong Feng Gao
- Collaborative Innovation Center of Tumor Marker Detection Technology, Equipment and Diagnosis-Therapy Integration in Universities of Shandong, Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, College of Chemistry and Chemical Engineering, Linyi University, Linyi 276005, People’s Republic of China
| | - Xuehong Min
- Key Laboratory of Catalysis and Energy Materials Chemistry of Education, Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan 430074, People’s Republic of China
| | - Yu Huang
- China State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, People’s Republic of China
| | - Shiwei Jin
- Key Laboratory of Catalysis and Energy Materials Chemistry of Education, Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan 430074, People’s Republic of China
| | - Fan Xia
- China State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, People’s Republic of China
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18
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Singh M, Zhang J, Bethel K, Liu Y, Davis EM, Zeng H, Kong Z, Johnson BN. Closed-Loop Controlled Photopolymerization of Hydrogels. ACS APPLIED MATERIALS & INTERFACES 2021; 13:40365-40378. [PMID: 34415733 DOI: 10.1021/acsami.1c11779] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Here, we present a closed-loop controlled photopolymerization process for fabrication of hydrogels with controlled storage moduli. Hydrogel crosslinking was associated with a significant change in the phase angle of a piezoelectric cantilever sensor and established the timescale of the photopolymerization process. The composition, structure, and mechanical properties of the fabricated hydrogels were characterized using Raman spectroscopy, scanning electron microscopy (SEM), and dynamic mechanical analysis (DMA). We found that the storage moduli of photocured poly(ethylene glycol) dimethacrylate (PEGDMA) and poly(N-isopropylacrylamide) (PNIPAm) hydrogels could be controlled using bang-bang and fuzzy logic controllers. Bang-bang controlled photopolymerization resulted in constant overshoot of the storage modulus setpoint for PEGDMA hydrogels, which was mitigated by setpoint correction and fuzzy logic control. SEM and DMA studies showed that the network structure and storage modulus of PEGDMA hydrogels were dependent on the cure time and temporal profile of UV exposure during photopolymerization. This work provides an advance in pulsed and continuous photopolymerization processes for hydrogel engineering based on closed-loop control that enables reproducible fabrication of hydrogels with controlled mechanical properties.
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Affiliation(s)
- Manjot Singh
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Junru Zhang
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Keturah Bethel
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
| | - Yang Liu
- Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Eric M Davis
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
| | - Haibo Zeng
- Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Zhenyu Kong
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Blake N Johnson
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
- Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
- Department of Materials Science and Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
- Department of Chemical Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
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19
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Gwon Y, Jo S, Lee HJ, Park SY, Lee TS. Synthesis of donor-acceptor-type conjugated polymer dots as organic photocatalysts for dye degradation and hydrogen evolution. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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20
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Ferguson CTJ, Zhang KAI. Classical Polymers as Highly Tunable and Designable Heterogeneous Photocatalysts. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02056] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Calum T. J. Ferguson
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Kai A. I. Zhang
- Department of Materials Science, Fudan University, 200433 Shanghai, P. R. China
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21
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Boussiron C, Le Bechec M, Sabalot J, Lacombe S, Save M. Photoactive rose bengal-based latex via RAFT emulsion polymerization-induced self-assembly. Polym Chem 2021. [DOI: 10.1039/d0py01128b] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rose bengal shell- or core-functionalized acrylic latex synthesized by RAFT emulsion PISA: interfacial photosensitized 1O2 production under visible light.
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Affiliation(s)
- Charlène Boussiron
- CNRS
- University Pau & Pays Adour
- E2S UPPA
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux
- IPREM
| | - Mickaël Le Bechec
- CNRS
- University Pau & Pays Adour
- E2S UPPA
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux
- IPREM
| | - Julia Sabalot
- CNRS
- University Pau & Pays Adour
- E2S UPPA
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux
- IPREM
| | - Sylvie Lacombe
- CNRS
- University Pau & Pays Adour
- E2S UPPA
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux
- IPREM
| | - Maud Save
- CNRS
- University Pau & Pays Adour
- E2S UPPA
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux
- IPREM
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22
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23
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Influence of Buffers, Ionic Strength, and pH on the Volume Phase Transition Behavior of Acrylamide-Based Nanogels. Polymers (Basel) 2020; 12:polym12112590. [PMID: 33158221 PMCID: PMC7694245 DOI: 10.3390/polym12112590] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 10/31/2020] [Accepted: 10/31/2020] [Indexed: 01/08/2023] Open
Abstract
The use of covalently crosslinked nanogels for applications in biology and medicine is dependent on their properties and characteristics, which often change because of the biological media involved. Understanding the role of salts, ionic strength and pH in altering specific properties is key to progress in this area. We studied the effect of both chemical structure and media environment on the thermoresponsive behavior of nanogels. A small library of methylenebisacrylamide (MBA) crosslinked nanogels were prepared using N-isopropylacrylamide (NIPAM) or N-n-propylacrylamide (NPAM), in combination with functional monomers N-hydroxyethylacrylamide (HEAM) and N-acryloyl-l-proline (APrOH). The thermoresponsive properties of nanogels were evaluated in phosphate buffer, tris-acetate buffer and Ringer HEPES, with varying concentrations and ionic strengths. The presence of ions facilitates the phase separation of nanogels, and this “salting-out” effect strongly depends on the electrolyte concentration as well as the specificity of individual anions, e.g., their positions in the Hofmeister series. A subtle change in the chemical structure of the side chain of the monomer from NIPAM to NPAM leads to a reduction of the volume phase transition temperature (VPTT) value by ~10 °C. The addition of hydrophilic comonomers such as HEAM, on the other hand, causes a ~20 °C shift in VPTT to higher values. The data highlight the significant role played by the chemical structure of the monomers used, with hydrophobicity and rigidity closely interlinked in determining thermoresponsive behavior. Furthermore, the volume phase transition temperature (VPTT) of nanogels copolymerized with ionizable APrOH comonomer can be tailored by changes in the pH of buffer solutions. This temperature-controlled phase transition is driven by intricate interplay involving the entropy of mixing, electrostatic interactions, conformational transitions, and structural rigidity. These results highlight the importance of understanding the physiochemical properties and behavior of covalently crosslinked nanogels in a biological environment prior to their applications in life-science, such as temperature/pH-triggered drug delivery systems.
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24
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Lan F, Wang Q, Chen H, Chen Y, Zhang Y, Huang B, Liu H, Liu J, Li R. Preparation of Hydrophilic Conjugated Microporous Polymers for Efficient Visible Light-Driven Nicotinamide Adenine Dinucleotide Regeneration and Photobiocatalytic Formaldehyde Reduction. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03652] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Fang Lan
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China
| | - Qin Wang
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China
| | - Hui Chen
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China
- Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Hunan, Changsha 410082, China
| | - Yi Chen
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China
| | - Yuanyuan Zhang
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Bowen Huang
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China
| | - Hongbo Liu
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China
- Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Hunan, Changsha 410082, China
| | - Jian Liu
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Run Li
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China
- Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Hunan, Changsha 410082, China
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25
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Jiang K, Chen Y, Zhao D, Cheng J, Mo F, Ji B, Gao C, Zhang C, Song J. A facile and efficient approach for hypertrophic scar therapy via DNA-based transdermal drug delivery. NANOSCALE 2020; 12:18682-18691. [PMID: 32970085 DOI: 10.1039/d0nr04751a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The transdermal drug delivery approach has been considered a potential therapy for human hypertrophic scars (HSs) instead of current uncomfortable surgical excision, local injection and laser therapy. However, a facile and efficient drug delivery method is urgently needed to overcome the skin barrier of transdermal administration. Herein, we employed a DNA-Fe nanoparticle delivery system via Fe ion driven self-assembly to satisfy the requirement of transdermal administration for HS therapy. Doxorubicin hydrochloride (DOX) as one of the widely used anticancer drugs was employed to treat the hyperplasia of abnormal skin fibrous tissue. Both in vitro and in vivo experiments of the DOX loaded DNA-Fe nanoparticles (DOX@DNA-Fe NPs) were performed to demonstrate the penetration ability, rapid drug release, and scar-inhibiting effects. This facile and efficient approach for HS therapy via a DNA-based transdermal drug delivery system may provide more possibilities for the development of transdermal administration.
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Affiliation(s)
- Kai Jiang
- Institute of Nano Biomedicine and Engineering, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
| | - Yunsheng Chen
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhizaoju Rd, Shanghai 200011, People's Republic of China
| | - Di Zhao
- Institute of Nano Biomedicine and Engineering, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
| | - Jin Cheng
- Institute of Nano Biomedicine and Engineering, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
| | - Fangli Mo
- Institute of Nano Biomedicine and Engineering, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
| | - Bin Ji
- Institute of Nano Biomedicine and Engineering, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
| | - Chao Gao
- Institute of Nano Biomedicine and Engineering, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
| | - Chuan Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
| | - Jie Song
- Institute of Nano Biomedicine and Engineering, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China. and Institute of Cancer and Basic Medicine (ICBM), Chinese Academy of Sciences; The Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, People's Republic of China
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26
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Xiao J, Liu X, Pan L, Shi C, Zhang X, Zou JJ. Heterogeneous Photocatalytic Organic Transformation Reactions Using Conjugated Polymers-Based Materials. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03480] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jie Xiao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Xianlong Liu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Lun Pan
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Chengxiang Shi
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Xiangwen Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Ji-Jun Zou
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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27
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Huber N, Li R, Ferguson CTJ, Gehrig DW, Ramanan C, Blom PWM, Landfester K, Zhang KAI. A PMMA-based heterogeneous photocatalyst for visible light-promoted [4 + 2] cycloaddition. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00016g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Macromolecular organic photocatalysts consisting of a PMMA network with integrated conjugated moiety have broad and promising applications in visible light-promoted photoredox catalysis.
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Affiliation(s)
- Niklas Huber
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
| | - Run Li
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
| | | | | | | | | | | | - Kai A. I. Zhang
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
- Department of Materials Science
- Fudan University
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