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Xu J, Xie Y, Yao Q, Lv L, Chu H. Advances in sustainable nano-biochar: precursors, synthesis methods and applications. NANOSCALE 2024. [PMID: 39041285 DOI: 10.1039/d4nr01694g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
Nano-biochar, characterized by its environmentally friendly nature and unique nanostructure, offers a promising avenue for sustainable carbon materials. With its small particle size, large specific surface area, abundant functional groups and tunable pore structure, nano-biochar stands out due to its distinct physical and chemical properties compared to conventional biochar. This paper aims to provide an in-depth exploration of nano-biochar, covering its sources, transformation mechanisms, properties, applications, and areas requiring further research. The discussion begins with an overview of biomass sources for nano-biochar production and the conversion processes involved. Subsequently, primary synthesis methods and strategies for functionalization enhancement are examined. Furthermore, the applications of nano-biochar in catalysis, energy storage, and pollutant adsorption and degradation are explored and enhanced in various fields.
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Affiliation(s)
- Junchao Xu
- School of Energy and Environment, Anhui University of Technology, Maanshan 243000, Anhui Province, PR China.
| | - Yiming Xie
- School of Energy and Environment, Anhui University of Technology, Maanshan 243000, Anhui Province, PR China.
| | - Qingdong Yao
- School of Energy and Environment, Anhui University of Technology, Maanshan 243000, Anhui Province, PR China.
| | - Li Lv
- College of Mechanical and Electrical Engineering, China Jiliang University, Hangzhou 310018, Zhejiang Province, PR China
| | - Huaqiang Chu
- School of Energy and Environment, Anhui University of Technology, Maanshan 243000, Anhui Province, PR China.
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2
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He H, Zhang R, Zhang P, Wang P, Chen N, Qian B, Zhang L, Yu J, Dai B. Functional Carbon from Nature: Biomass-Derived Carbon Materials and the Recent Progress of Their Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205557. [PMID: 36988448 DOI: 10.1002/advs.202205557] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 02/27/2023] [Indexed: 06/04/2023]
Abstract
Biomass is considered as a promising source to fabricate functional carbon materials for its sustainability, low cost, and high carbon content. Biomass-derived-carbon materials (BCMs) have been a thriving research field. Novel structures, diverse synthesis methods, and versatile applications of BCMs have been reported. However, there has been no recent review of the numerous studies of different aspects of BCMs-related research. Therefore, this paper presents a comprehensive review that summarizes the progress of BCMs related research. Herein, typical types of biomass used to prepare BCMs are introduced. Variable structures of BCMs are summarized as the performance and properties of BCMs are closely related to their structures. Representative synthesis strategies, including both their merits and drawbacks are reviewed comprehensively. Moreover, the influence of synthetic conditions on the structure of as-prepared carbon products is discussed, providing important information for the rational design of the fabrication process of BCMs. Recent progress in versatile applications of BCMs based on their morphologies and physicochemical properties is reported. Finally, the remaining challenges of BCMs, are highlighted. Overall, this review provides a valuable overview of current knowledge and recent progress of BCMs, and it outlines directions for future research development of BCMs.
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Affiliation(s)
- Hongzhe He
- Department of Chemical & Biological Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia
- Energy & Environment Research Center, Monash Suzhou Research Institute, Suzhou Industry Park, Suzhou, 215123, China
| | - Ruoqun Zhang
- Department of Chemical & Biological Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia
- Energy & Environment Research Center, Monash Suzhou Research Institute, Suzhou Industry Park, Suzhou, 215123, China
| | - Pengcheng Zhang
- Department of Chemical & Biological Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia
- Energy & Environment Research Center, Monash Suzhou Research Institute, Suzhou Industry Park, Suzhou, 215123, China
| | - Ping Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Ning Chen
- College of Chemistry, Chemical Engineering and Materials Science, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, 215123, China
| | - Binbin Qian
- Department of Chemical & Biological Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia
- Energy & Environment Research Center, Monash Suzhou Research Institute, Suzhou Industry Park, Suzhou, 215123, China
| | - Lian Zhang
- Department of Chemical & Biological Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia
| | - Jianglong Yu
- Department of Chemical & Biological Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia
- Energy & Environment Research Center, Monash Suzhou Research Institute, Suzhou Industry Park, Suzhou, 215123, China
| | - Baiqian Dai
- Department of Chemical & Biological Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia
- Energy & Environment Research Center, Monash Suzhou Research Institute, Suzhou Industry Park, Suzhou, 215123, China
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3
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Wang Y, Wang B, Xiong X, Deng S. A self-oriented beacon liquid crystal assay for kanamycin detection with AuNPs signal enhancement. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:410-416. [PMID: 35006220 DOI: 10.1039/d1ay01613j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The authors report a self-oriented beacon liquid crystal (LC) biosensor for kanamycin (Kana) detection with gold nanoparticle (AuNPs) signal enhancement. In this study, an assay was proposed for Kana detection using the aptamer as a self-oriented beacon. Without an additional orientation agent, the Kana aptamer was used as a self-oriented beacon both as an orientation agent for the LCs and as a signal recognition probe for biological molecules. Gold nanoparticles are blended with desired concentrations of the target molecules, which can greatly improve the performance of the biosensor. In the presence of Kana, AuNPs-Kana-aptamer conjugates will form on the sensing interface of the biosensor, which can remarkably destroy the orientated arrangement of the LCs, resulting in changes in the corresponding polarized images of the LCs. The limit of Kana detection is as low as 0.1 pmol L-1. It is important to note that the self-oriented beacons are immobilized on the assembled film of the glass slides for the specific recognition of Kana, simultaneously allowing the homeotropic orientation of the LCs. This study also provides a mechanism for the self-orientation beacon and liquid crystal biosensing.
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Affiliation(s)
- Ying Wang
- School of Medical Information Engineering, Jining Medical University, Rizhao 276826, Shandong, PR China.
| | - Bing Wang
- Rizhao Hospital of Traditional Chinese Medicine, Rizhao 276800, PR China
| | - Xingliang Xiong
- Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, PR China.
| | - Shixiong Deng
- Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, PR China.
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4
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Liquid crystal-based biosensors as lab-on-chip tools: Promising for future on-site detection test kits. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116325] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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5
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Hammond-Pereira E, Bryant K, Graham TR, Yang C, Mergelsberg S, Wu D, Saunders SR. Mesoporous silica-encapsulated gold core–shell nanoparticles for active solvent-free benzyl alcohol oxidation. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00198h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silica-encapsulated gold core@shell nanoparticles (Au@SiO2 CSNPs) were synthesized via a tunable bottom-up procedure to catalyze the aerobic oxidation of benzyl alcohol.
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Affiliation(s)
- Ellis Hammond-Pereira
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering
- Washington State University
- Pullman
- USA
| | - Kristin Bryant
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering
- Washington State University
- Pullman
- USA
| | - Trent R. Graham
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering
- Washington State University
- Pullman
- USA
- Pacific Northwest National Laboratory
| | - Chen Yang
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering
- Washington State University
- Pullman
- USA
- Alexandra Navrotsky Institute for Experimental Thermodynamics
| | | | - Di Wu
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering
- Washington State University
- Pullman
- USA
- Alexandra Navrotsky Institute for Experimental Thermodynamics
| | - Steven R. Saunders
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering
- Washington State University
- Pullman
- USA
- Department of Chemistry
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6
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Wang Y, Wang B, Xiong X, Deng S. Gold nanoparticle-based signal enhancement of an aptasensor for ractopamine using liquid crystal based optical imaging. Mikrochim Acta 2019; 186:697. [PMID: 31617011 DOI: 10.1007/s00604-019-3811-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 09/09/2019] [Indexed: 11/24/2022]
Abstract
The authors report on a method for the determination of ractopamine (RAC) via liquid crystal (LC) optical imaging and gold nanoparticle-induced signal enhancement. The gold nanoparticles (AuNPs) were blended with the desired concentrations of RAC, and this is found to strongly improve the performance of the assay. The RAC aptamers were immobilized on the self-assembled film of a glass slide for specific recognition of RAC. This causes a homeotropic re-orientation of the LCs. Notably, the aptamers need not be immobilized on the nanoparticles like in other methods. The addition of RAC causes the formation of an AuNP-RAC-aptamer conjugate on the sensing interface. This disrupts the orientation of LCs and results in a change of the polarized images of the LCs. The method has a detection limit as low as 1 pM of RAC. Graphical abstract Schematic presentation of a method for the determination of ractopamine (RAC) using liquid crystal (LC) optical imaging and gold nanoparticle-induced signal enhancement. The aptamers need not be immobilized on the nanoparticles like in other methods.
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Affiliation(s)
- Ying Wang
- School of Medical Information Engineering, Jining Medical University, Rizhao, 276826, Shandong, China.,Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Bing Wang
- Hospital of Traditional Chinese Medicine in Rizhao City, Rizhao, 276800, China
| | - XingLiang Xiong
- Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China.
| | - ShiXiong Deng
- Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China.
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7
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Hui Y, Zhang S, Wang W. Recent Progress in Catalytic Oxidative Transformations of Alcohols by Supported Gold Nanoparticles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801595] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yonghai Hui
- The College of Chemistry and Chemical EngineeringLingnan Normal University Zhanjiang 524048 People's Republic of China
| | - Shiqi Zhang
- The College of Chemistry and Chemical EngineeringLingnan Normal University Zhanjiang 524048 People's Republic of China
| | - Wentao Wang
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 People's Republic of China
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Yang Y, Li G, Mao X, She Y. Selective Aerobic Oxidation of 4-Ethylnitrobenzene to 4-Nitroacetophenone Promoted by Metalloporphyrins. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.9b00030] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuning Yang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Guijie Li
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Xinbiao Mao
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Yuanbin She
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
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Murugesan K, Alshammari AS, Sohail M, Beller M, Jagadeesh RV. Monodisperse nickel-nanoparticles for stereo- and chemoselective hydrogenation of alkynes to alkenes. J Catal 2019. [DOI: 10.1016/j.jcat.2018.12.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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10
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Zhong A, Xu Y, He Z, Zhang H, Wang T, Zhou M, Xiong L, Huang K. Thiol-Functionalized Organic Porous Polymers as a Support for Gold Nanoparticles and Its Catalytic Applications. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Aiqing Zhong
- School of Chemistry and Molecular Engineering; East China Normal University; Shanghai 200241 China
| | - Yang Xu
- School of Chemistry and Molecular Engineering; East China Normal University; Shanghai 200241 China
| | - Zidong He
- School of Chemistry and Molecular Engineering; East China Normal University; Shanghai 200241 China
| | - Hui Zhang
- School of Chemistry and Molecular Engineering; East China Normal University; Shanghai 200241 China
| | - Tianqi Wang
- School of Chemistry and Molecular Engineering; East China Normal University; Shanghai 200241 China
| | - Minghong Zhou
- School of Chemistry and Molecular Engineering; East China Normal University; Shanghai 200241 China
| | - Linfeng Xiong
- School of Chemistry and Molecular Engineering; East China Normal University; Shanghai 200241 China
| | - Kun Huang
- School of Chemistry and Molecular Engineering; East China Normal University; Shanghai 200241 China
- State Key Laboratory of Molecular Engineering of Polymers; Fudan University; Shanghai 200433 China
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11
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An N, Lin H, Yang C, Zhang T, Tong R, Chen Y, Qu F. Gated magnetic mesoporous silica nanoparticles for intracellular enzyme-triggered drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:292-300. [DOI: 10.1016/j.msec.2016.06.086] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 05/26/2016] [Accepted: 06/26/2016] [Indexed: 12/14/2022]
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12
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Modeling of boldine alkaloid adsorption onto pure and propyl-sulfonic acid-modified mesoporous silicas. A comparative study. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:815-30. [DOI: 10.1016/j.msec.2016.07.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 06/25/2016] [Accepted: 07/19/2016] [Indexed: 12/18/2022]
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13
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Yao X, Bai C, Chen J, Li Y. Efficient and selective green oxidation of alcohols by MOF-derived magnetic nanoparticles as a recoverable catalyst. RSC Adv 2016. [DOI: 10.1039/c6ra01617k] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A magnetic Fe3O4@C heterogeneous catalyst derived from MOFs is highly efficient and selective in oxidation of alcohols with neat water and base-free conditions.
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Affiliation(s)
- Xianfang Yao
- State Key Laboratory of Pulp and Paper Engineering
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Cuihua Bai
- State Key Laboratory of Pulp and Paper Engineering
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Junying Chen
- State Key Laboratory of Pulp and Paper Engineering
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Yingwei Li
- State Key Laboratory of Pulp and Paper Engineering
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
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14
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Sharma AS, Kaur H, Shah D. Selective oxidation of alcohols by supported gold nanoparticles: recent advances. RSC Adv 2016. [DOI: 10.1039/c5ra25646a] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The review presents a commercially important field of alcohol oxidation using gold nanoparticles. It systematically discusses scope and limitation of various supports on the activity and selectivity of catalyst.
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Affiliation(s)
- Anuj S. Sharma
- Department of Chemistry
- School of Sciences
- Gujarat University
- Ahmedabad
- India
| | - Harjinder Kaur
- Department of Chemistry
- School of Sciences
- Gujarat University
- Ahmedabad
- India
| | - Dipen Shah
- Department of Chemistry
- School of Sciences
- Gujarat University
- Ahmedabad
- India
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15
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Patnam PL, Bhatt M, Singh R, Saran S, Jain SL. Magnetically separable chicken feathers: a biopolymer based heterogeneous catalyst for the oxidation of organic substrates. RSC Adv 2016. [DOI: 10.1039/c6ra03978b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Magnetically separable chicken feather nanoparticles were found to be efficient, green and heterogeneous catalyst for selective oxidation of alcohols to carbonyls and sulfides to sulfoxides using t-butyl hydroperoxide (TBHP) as oxidant.
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Affiliation(s)
- Padma L. Patnam
- Chemical Sciences Division
- CSIR-Indian Institute of Petroleum
- Dehradun-248005
- India
| | - Mukesh Bhatt
- Chemical Sciences Division
- CSIR-Indian Institute of Petroleum
- Dehradun-248005
- India
| | - Raghuvir Singh
- Analytical Sciences Division
- CSIR-Indian Institute of Petroleum
- Dehradun-248005
- India
| | - Sandeep Saran
- Analytical Sciences Division
- CSIR-Indian Institute of Petroleum
- Dehradun-248005
- India
| | - Suman L. Jain
- Chemical Sciences Division
- CSIR-Indian Institute of Petroleum
- Dehradun-248005
- India
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16
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Shaabani A, Borjian Boroujeni M, Laeini MS. Porous chitosan-MnO2
nanohybrid: a green and biodegradable heterogeneous catalyst for aerobic oxidation of alkylarenes and alcohols. Appl Organomet Chem 2015. [DOI: 10.1002/aoc.3412] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ahmad Shaabani
- Faculty of Chemistry; Shahid Beheshti University; GC, PO Box 19396-4716 Tehran Iran
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17
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Jiang H, Ling K, Tao X, Zhang Q. Theophylline detection in serum using a self-assembling RNA aptamer-based gold nanoparticle sensor. Biosens Bioelectron 2015; 70:299-303. [PMID: 25840014 DOI: 10.1016/j.bios.2015.03.054] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 03/17/2015] [Accepted: 03/23/2015] [Indexed: 01/02/2023]
Abstract
Recently, DNA aptamer-gold nanoparticle (AuNP) conjugates have emerged as novel biosensing tools. Although RNA aptamers are more advantageous than DNA aptamers, their vulnerable nature during the construction of these conjugates restricts the development of RNA aptasensors. In this study, we developed an RNA aptamer-based AuNP sensor for the detection of theophylline in serum, combining the high binding affinity and selectivity of a theophylline RNA aptamer and the fluorescence quenching ability of AuNPs. In order to prevent nuclease degradation during the experimental process, the single strand of the theophylline RNA aptamer (33-mer) was split at the end loop region into two shorter halves, which were able to reassemble to form the theophylline-binding pocket. One fragment was linked to a DNA sequence that included a 15 thymine (T15) spacer and a polyadenine (polyA, A12) tail. The chimeric RNA/DNA oligonucleotide was attached to AuNPs within a few minutes via adsorption of the polyA tail. The other fragment was labeled with a fluorophore (Cy3). The two individual fragments self-assembled in the presence of theophylline. Upon ligand binding, the fragments came into close proximity, resulting in fluorescence quenching. This sensor exhibited a low detection limit of 0.05 µM, with a linear dynamic range from 0.1 to 10 µM in serum. Moreover, the sensor did not recognize theophylline-related compounds (e.g., caffeine and theobromine), demonstrating its high selectivity. This strategy offers new possibilities for the application of RNA aptasensors in clinical settings.
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Affiliation(s)
- Hongyan Jiang
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Biomedical Material of Tianjin, Tianjin 300192, PR China
| | - Kai Ling
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Biomedical Material of Tianjin, Tianjin 300192, PR China
| | - Xiaojun Tao
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Biomedical Material of Tianjin, Tianjin 300192, PR China
| | - Qiqing Zhang
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Biomedical Material of Tianjin, Tianjin 300192, PR China.
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18
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A sensitive glucose biosensor based on Ag@C core-shell matrix. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 49:579-587. [PMID: 25686986 DOI: 10.1016/j.msec.2015.01.063] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 12/30/2014] [Accepted: 01/17/2015] [Indexed: 12/12/2022]
Abstract
Nano-Ag particles were coated with colloidal carbon (Ag@C) to improve its biocompatibility and chemical stability for the preparation of biosensor. The core-shell structure was evidenced by transmission electron microscope (TEM) and the Fourier transfer infrared (FTIR) spectra revealed that the carbon shell is rich of function groups such as -OH and -COOH. The as-prepared Ag@C core-shell structure can offer favorable microenvironment for immobilizing glucose oxidase and the direct electrochemistry process of glucose oxidase (GOD) at Ag@C modified glassy carbon electrode (GCE) was realized. The modified electrode exhibited good response to glucose. Under optimum experimental conditions the biosensor linearly responded to glucose concentration in the range of 0.05-2.5mM, with a detection limit of 0.02mM (S/N=3). The apparent Michaelis-Menten constant (KM(app)) of the biosensor is calculated to be 1.7mM, suggesting high enzymatic activity and affinity toward glucose. In addition, the GOD-Ag@C/Nafion/GCE shows good reproducibility and long-term stability. These results suggested that core-shell structured Ag@C is an ideal matrix for the immobilization of the redox enzymes and further the construction of the sensitive enzyme biosensor.
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19
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Kopylovich MN, Ribeiro AP, Alegria EC, Martins NM, Martins LM, Pombeiro AJ. Catalytic Oxidation of Alcohols. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2015. [DOI: 10.1016/bs.adomc.2015.02.004] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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