101
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Sikdar S, Banu A, Chakraborty S, Baildya N, Majumdar S. Synthesis, photocatalytic and antibacterial activities of a PDS-activated MgO nanocatalyst: experimental and theoretical studies. NEW J CHEM 2022. [DOI: 10.1039/d1nj05195d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PDS activation of MgO nanoparticles provides the opportunity to explore their applications and activities.
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Affiliation(s)
- Suranjan Sikdar
- Department of Chemistry, Govt. General Degree College at Kushmandi, Kushmandi, Dakshin Dinajpur, India
| | - Afroja Banu
- Department of Chemistry, Govt. General Degree College at Kushmandi, Kushmandi, Dakshin Dinajpur, India
- Department of Chemistry, University of North Bengal, Darjeeling, India
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102
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Kolankowski K, Gadomska‐Gajadhur A, Wrzecionek M, Ruśkowski P. Mathematically described model of poly(glycerol maleate) cross‐linking process using triethylenetetramine addition. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | | | - Paweł Ruśkowski
- Faculty of Chemistry Warsaw University of Technology Warsaw Poland
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103
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Turner B, Ramesh S, Menegatti S, Daniele M. Resorbable elastomers for implantable medical devices: highlights and applications. POLYM INT 2021. [DOI: 10.1002/pi.6349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Brendan Turner
- Joint Department of Biomedical Engineering North Carolina State University and University of Chapel Hill Raleigh NC USA
- Department of Chemical and Biomolecular Engineering North Carolina State University Raleigh NC USA
| | - Srivatsan Ramesh
- Department of Chemical and Biomolecular Engineering North Carolina State University Raleigh NC USA
| | - Stefano Menegatti
- Department of Chemical and Biomolecular Engineering North Carolina State University Raleigh NC USA
| | - Michael Daniele
- Joint Department of Biomedical Engineering North Carolina State University and University of Chapel Hill Raleigh NC USA
- Department of Electrical and Computer Engineering North Carolina State University Raleigh NC USA
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104
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Huang C, Guan X, Lin H, Liang L, Miao Y, Wu Y, Bao H, Wu X, Shen A, Wei M, Huang J. Efficient Photoacoustic Imaging With Biomimetic Mesoporous Silica-Based Nanoparticles. Front Bioeng Biotechnol 2021; 9:762956. [PMID: 34917596 PMCID: PMC8669651 DOI: 10.3389/fbioe.2021.762956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 11/03/2021] [Indexed: 11/13/2022] Open
Abstract
Indocyanine green (ICG), a near-infrared (NIR) fluorescent dye approved by the Food and Drug Administration (FDA), has been extensively used as a photoacoustic (PA) probe for PA imaging. However, its practical application is limited by poor photostability in water, rapid body clearance, and non-specificity. Herein, we fabricated a novel biomimetic nanoprobe by coating ICG-loaded mesoporous silica nanoparticles with the cancer cell membrane (namely, CMI) for PA imaging. This probe exhibited good dispersion, large loading efficiency, good biocompatibility, and homologous targeting ability to Hela cells in vitro. Furthermore, the in vivo and ex vivo PA imaging on Hela tumor-bearing nude mice demonstrated that CMI could accumulate in tumor tissue and display a superior PA imaging efficacy compared with free ICG. All these results demonstrated that CMI might be a promising contrast agent for PA imaging of cervical carcinoma.
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Affiliation(s)
- Chuangjia Huang
- Department of Cardiology, The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Xiaoling Guan
- Department of Cardiology, The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Hui Lin
- Department of Oncology, Guangdong Provincial Hospital of Integrated Traditional Chinese and Western Medicine, Foshan, China
| | - Lu Liang
- Department of Cardiology, The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yingling Miao
- Department of Cardiology, The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yueheng Wu
- School of Medicine, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, South China University of Technology, Guangzhou, China
| | - Huiqiong Bao
- School of Medicine, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, South China University of Technology, Guangzhou, China
| | - Xiaodan Wu
- Department of Cardiology, The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Ao Shen
- Department of Cardiology, The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Minyan Wei
- Department of Cardiology, The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jionghua Huang
- Department of Cardiology, The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
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105
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Liang P, Mao L, Dong Y, Zhao Z, Sun Q, Mazhar M, Ma Y, Yang S, Ren W. Design and Application of Near-Infrared Nanomaterial-Liposome Hybrid Nanocarriers for Cancer Photothermal Therapy. Pharmaceutics 2021; 13:2070. [PMID: 34959351 PMCID: PMC8704010 DOI: 10.3390/pharmaceutics13122070] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/09/2021] [Accepted: 11/26/2021] [Indexed: 01/04/2023] Open
Abstract
Liposomes are attractive carriers for targeted and controlled drug delivery receiving increasing attention in cancer photothermal therapy. However, the field of creating near-infrared nanomaterial-liposome hybrid nanocarriers (NIRN-Lips) is relatively little understood. The hybrid nanocarriers combine the dual superiority of nanomaterials and liposomes, with more stable particles, enhanced photoluminescence, higher tumor permeability, better tumor-targeted drug delivery, stimulus-responsive drug release, and thus exhibiting better anti-tumor efficacy. Herein, this review covers the liposomes supported various types of near-infrared nanomaterials, including gold-based nanomaterials, carbon-based nanomaterials, and semiconductor quantum dots. Specifically, the NIRN-Lips are described in terms of their feature, synthesis, and drug-release mechanism. The design considerations of NIRN-Lips are highlighted. Further, we briefly introduced the photothermal conversion mechanism of NIRNs and the cell death mechanism induced by photothermal therapy. Subsequently, we provided a brief conclusion of NIRNs-Lips applied in cancer photothermal therapy. Finally, we discussed a synopsis of associated challenges and future perspectives for the applications of NIRN-Lips in cancer photothermal therapy.
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Affiliation(s)
- Pan Liang
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Linshen Mao
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Yanli Dong
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Zhenwen Zhao
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry Chinese Academy of Sciences, Beijing Mass Spectrum Center, Beijing 100190, China;
| | - Qin Sun
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Maryam Mazhar
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Yining Ma
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Sijin Yang
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Wei Ren
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; (P.L.); (L.M.); (Y.D.); (Q.S.); (M.M.); (Y.M.)
- College of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
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106
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Zou L, Ouyang S, Hu Y, Zheng Z, Ouyang J. Efficient lactic acid production from dilute acid-pretreated lignocellulosic biomass by a synthetic consortium of engineered Pseudomonas putida and Bacillus coagulans. BIOTECHNOLOGY FOR BIOFUELS 2021; 14:227. [PMID: 34838093 PMCID: PMC8627035 DOI: 10.1186/s13068-021-02078-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 11/16/2021] [Indexed: 05/15/2023]
Abstract
BACKGROUND Lignocellulosic biomass is an attractive and sustainable alternative to petroleum-based feedstock for the production of a range of biochemicals, and pretreatment is generally regarded as indispensable for its biorefinery. However, various inhibitors that severely hinder the growth and fermentation of microorganisms are inevitably produced during the pretreatment of lignocellulose. Presently, there are few reports on a single microorganism that can detoxify or tolerate toxic mixtures of pretreated lignocellulose hydrolysate while effectively transforming sugar components into valuable compounds. Alternatively, microbial coculture provides a simpler and more efficacious way to realize this goal by distributing metabolic functions among different specialized strains. RESULTS In this study, a novel synthetic microbial consortium, which is composed of a responsible for detoxification bacterium engineered Pseudomonas putida KT2440 and a lactic acid production specialist Bacillus coagulans NL01, was developed to directly produce lactic acid from highly toxic lignocellulosic hydrolysate. The engineered P. putida with deletion of the sugar metabolism pathway was unable to consume the major fermentable sugars of lignocellulosic hydrolysate but exhibited great tolerance to 10 g/L sodium acetate, 5 g/L levulinic acid, 10 mM furfural and HMF as well as 2 g/L monophenol compound. In addition, the engineered strain rapidly removed diverse inhibitors of real hydrolysate. The degradation rate of organic acids (acetate, levulinic acid) and the conversion rate of furan aldehyde were both 100%, and the removal rate of most monoaromatic compounds remained at approximately 90%. With detoxification using engineered P. putida for 24 h, the 30% (v/v) hydrolysate was fermented to 35.8 g/L lactic acid by B. coagulans with a lactic acid yield of 0.8 g/g total sugars. Compared with that of the single culture of B. coagulans without lactic acid production, the fermentation performance of microbial coculture was significantly improved. CONCLUSIONS The microbial coculture system constructed in this study demonstrated the strong potential of the process for the biosynthesis of valuable products from lignocellulosic hydrolysates containing high concentrations of complex inhibitors by specifically recruiting consortia of robust microorganisms with desirable characteristics and also provided a feasible and attractive method for the bioconversion of lignocellulosic biomass to other value-added biochemicals.
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Affiliation(s)
- Lihua Zou
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Shuiping Ouyang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Yueli Hu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Zhaojuan Zheng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
- Jiangsu Province Key Laboratory of Green Biomass-Based Fuels and Chemicals, Nanjing, 210037, People's Republic of China
| | - Jia Ouyang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
- Jiangsu Province Key Laboratory of Green Biomass-Based Fuels and Chemicals, Nanjing, 210037, People's Republic of China.
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107
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Kaur J, Arroub K, Drzezga A, Schomäcker K, Mathur S. Synthesis, proteolytic stability, and in vitro evaluation of DOTA conjugated p160 peptide based radioconjugates: [ 177Lu]Lu-DOTA-p160. Org Biomol Chem 2021; 19:9849-9854. [PMID: 34755753 DOI: 10.1039/d1ob01812d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we describe the synthesis, in vitro stability, and preliminary biological evaluation of [177Lu]Lu-DOTA-p160 peptide-based radiopharmaceuticals. Our findings highlight that all DOTA-p160-peptide radioconjugates exhibit favorable proteolytic and enzymatic stability with a prolonged half-life in human plasma and serum. Cell uptake studies carried out on MCF-7 cell line revealed saturable binding of the radioconjugates in the nanomolar range, thereby demonstrating their promising potential in the imaging and therapy of breast tumors.
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Affiliation(s)
- Jasleen Kaur
- Amity Institute of Virology and Immunology, Sector-125, Amity University, Noida, 201313, Uttar Pradesh, India. .,University Clinic of Cologne, Clinic of Nuclear Medicine, Cologne, Germany
| | - Karim Arroub
- Institute of Inorganic Chemistry, University of Cologne, Cologne, Germany
| | - Alexander Drzezga
- University Clinic of Cologne, Clinic of Nuclear Medicine, Cologne, Germany
| | - Klaus Schomäcker
- University Clinic of Cologne, Clinic of Nuclear Medicine, Cologne, Germany
| | - Sanjay Mathur
- Institute of Inorganic Chemistry, University of Cologne, Cologne, Germany
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108
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Pitz ME, Nukovic AM, Elpers MA, Alexander-Bryant AA. Factors Affecting Secondary and Supramolecular Structures of Self-Assembling Peptide Nanocarriers. Macromol Biosci 2021; 22:e2100347. [PMID: 34800001 DOI: 10.1002/mabi.202100347] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/19/2021] [Indexed: 01/12/2023]
Abstract
Self-assembling peptides are a popular vector for therapeutic cargo delivery due to their versatility, tunability, and biocompatibility. Accurately predicting secondary and supramolecular structures of self-assembling peptides is essential for de novo peptide design. However, computational modeling of such assemblies is not yet able to accurately predict structure formation for many peptide sequences. This review identifies patterns in literature between secondary and supramolecular structures, primary sequences, and applications to provide a guide for informed peptide design. An overview of peptide structures, their applications as nanocarriers, and analytical methods for characterizing secondary and supramolecular structure is examined. A top-down approach is then used to identify trends between peptide sequence and assembly structure from the current literature, including an analysis of the drivers at work, such as local and nonlocal sequence effects and solution conditions.
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Affiliation(s)
- Megan E Pitz
- Department of Bioengineering, 301 Rhodes Research Center, Clemson University, Clemson, SC, 29634-0905, USA
| | - Alexandra M Nukovic
- Department of Bioengineering, 301 Rhodes Research Center, Clemson University, Clemson, SC, 29634-0905, USA
| | - Margaret A Elpers
- Department of Bioengineering, 301 Rhodes Research Center, Clemson University, Clemson, SC, 29634-0905, USA
| | - Angela A Alexander-Bryant
- Department of Bioengineering, 301 Rhodes Research Center, Clemson University, Clemson, SC, 29634-0905, USA
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109
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Du N, Ye F, Sun J, Liu K. Stimuli-Responsive Natural Proteins and Their Applications. Chembiochem 2021; 23:e202100416. [PMID: 34773331 DOI: 10.1002/cbic.202100416] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 11/12/2021] [Indexed: 01/02/2023]
Abstract
Natural proteins are essential biomacromolecules that fulfill versatile functions in the living organism, such as their usage as cytoskeleton, nutriment transporter, homeostasis controller, catalyzer, or immune guarder. Due to the excellent mechanical properties and good biocompatibility/biodegradability, natural protein-based biomaterials are well equipped for prospective applications in various fields. Among these natural proteins, stimuli-responsive proteins can be reversibly and precisely manipulated on demand, rendering the protein-based biomaterials promising candidates for numerous applications, including disease detection, drug delivery, bio-sensing, and regenerative medicine. Therefore, we present some typical natural proteins with diverse physical stimuli-responsive properties, including temperature, light, force, electrical, and magnetic sensing in this review. The structure-function mechanism of these proteins is discussed in detail. Finally, we give a summary and perspective for the development of stimuli-responsive proteins.
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Affiliation(s)
- Na Du
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 325001, P. R. China.,State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Fangfu Ye
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 325001, P. R. China
| | - Jing Sun
- Institute of Organic Chemistry, University of Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Kai Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.,Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
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110
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Aylaz G, Zenger O, Baydemir Peşint G, Andaç M. Molecularly imprinted composite discs for transferrin recognition. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2021.1990950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Gülgün Aylaz
- Nanotechnology and Nanomedicine Division, Institute of Science, Hacettepe University, Ankara, Turkey
| | - Okan Zenger
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Turkey
| | - Gözde Baydemir Peşint
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Turkey
| | - Müge Andaç
- Department of Environmental Engineering, Hacettepe University, Ankara, Turkey
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111
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Ríos MC, Bravo NF, Sánchez CC, Portilla J. Chemosensors based on N-heterocyclic dyes: advances in sensing highly toxic ions such as CN - and Hg 2. RSC Adv 2021; 11:34206-34234. [PMID: 35497277 PMCID: PMC9042589 DOI: 10.1039/d1ra06567j] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 10/02/2021] [Indexed: 12/19/2022] Open
Abstract
CN- and Hg2+ ions are harmful to both the environment and human health, even at trace levels. Thus, alternative methods for their detection and quantification are highly desirable given that the traditional monitoring systems are expensive and require qualified personnel. Optical chemosensors (probes) have revolutionized the sensing of different species due to their high specificity and sensitivity, corresponding with their modular design. They have also been used in aqueous media and different pH ranges, facilitating their applications in various samples. The design of molecular probes is based on organic dyes, where the key species are N-heterocyclic compounds (NHCs) due to their proven photophysical properties, biocompatibility, and synthetic versatility, which favor diverse applications. Accordingly, this review aims to provide an overview of the reports from 2016 to 2021, in which fluorescent probes based on five- and six-membered N-heterocycles are used for the detection of CN- and Hg2+ ions.
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Affiliation(s)
- María-Camila Ríos
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes Carrera 1 No. 18A-10 Bogotá 111711 Colombia
| | - Néstor-Fabián Bravo
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes Carrera 1 No. 18A-10 Bogotá 111711 Colombia
| | - Christian-Camilo Sánchez
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes Carrera 1 No. 18A-10 Bogotá 111711 Colombia
| | - Jaime Portilla
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes Carrera 1 No. 18A-10 Bogotá 111711 Colombia
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112
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Alam MI, Cheula R, Moroni G, Nardi L, Maestri M. Mechanistic and multiscale aspects of thermo-catalytic CO 2 conversion to C 1 products. Catal Sci Technol 2021; 11:6601-6629. [PMID: 34745556 PMCID: PMC8521205 DOI: 10.1039/d1cy00922b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 08/26/2021] [Indexed: 12/04/2022]
Abstract
The increasing environmental concerns due to anthropogenic CO2 emissions have called for an alternate sustainable source to fulfill rising chemical and energy demands and reduce environmental problems. The thermo-catalytic activation and conversion of abundantly available CO2, a thermodynamically stable and kinetically inert molecule, can significantly pave the way to sustainably produce chemicals and fuels and mitigate the additional CO2 load. This can be done through comprehensive knowledge and understanding of catalyst behavior, reaction kinetics, and reactor design. This review aims to catalog and summarize the advances in the experimental and theoretical approaches for CO2 activation and conversion to C1 products via heterogeneous catalytic routes. To this aim, we analyze the current literature works describing experimental analyses (e.g., catalyst characterization and kinetics measurement) as well as computational studies (e.g., microkinetic modeling and first-principles calculations). The catalytic reactions of CO2 activation and conversion reviewed in detail are: (i) reverse water-gas shift (RWGS), (ii) CO2 methanation, (iii) CO2 hydrogenation to methanol, and (iv) dry reforming of methane (DRM). This review is divided into six sections. The first section provides an overview of the energy and environmental problems of our society, in which promising strategies and possible pathways to utilize anthropogenic CO2 are highlighted. In the second section, the discussion follows with the description of materials and mechanisms of the available thermo-catalytic processes for CO2 utilization. In the third section, the process of catalyst deactivation by coking is presented, and possible solutions to the problem are recommended based on experimental and theoretical literature works. In the fourth section, kinetic models are reviewed. In the fifth section, reaction technologies associated with the conversion of CO2 are described, and, finally, in the sixth section, concluding remarks and future directions are provided.
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Affiliation(s)
- Md Imteyaz Alam
- Laboratory of Catalysis and Catalytic Processes, Dipartimento di Energia, Politecnico di Milano Via La Masa 34 20156 Milano Italy
| | - Raffaele Cheula
- Laboratory of Catalysis and Catalytic Processes, Dipartimento di Energia, Politecnico di Milano Via La Masa 34 20156 Milano Italy
| | - Gianluca Moroni
- Laboratory of Catalysis and Catalytic Processes, Dipartimento di Energia, Politecnico di Milano Via La Masa 34 20156 Milano Italy
| | - Luca Nardi
- Laboratory of Catalysis and Catalytic Processes, Dipartimento di Energia, Politecnico di Milano Via La Masa 34 20156 Milano Italy
| | - Matteo Maestri
- Laboratory of Catalysis and Catalytic Processes, Dipartimento di Energia, Politecnico di Milano Via La Masa 34 20156 Milano Italy
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113
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Werner D, Alexander T, Winkler D, Apaydin DH, Loerting T, Portenkirchner E. Substrate Dependent Charge Transfer Kinetics at the Solid/Liquid Interface of Carbon‐Based Electrodes with Potential Application for Organic Na‐Ion Batteries. Isr J Chem 2021. [DOI: 10.1002/ijch.202100082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Daniel Werner
- Institute of Physical Chemistry University of Innsbruck 6020 Innsbruck Austria
| | - Thöny Alexander
- Institute of Physical Chemistry University of Innsbruck 6020 Innsbruck Austria
| | - Daniel Winkler
- Institute of Physical Chemistry University of Innsbruck 6020 Innsbruck Austria
| | | | - Thomas Loerting
- Institute of Physical Chemistry University of Innsbruck 6020 Innsbruck Austria
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114
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Pandey AK, Piplani N, Mondal T, Katranidis A, Bhattacharya J. Efficient delivery of hydrophobic drug, Cabazitaxel, using Nanodisc: A nano sized free standing planar lipid bilayer. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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115
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Rauber D, Philippi F, Kuttich B, Becker J, Kraus T, Hunt P, Welton T, Hempelmann R, Kay CWM. Curled cation structures accelerate the dynamics of ionic liquids. Phys Chem Chem Phys 2021; 23:21042-21064. [PMID: 34522943 DOI: 10.1039/d1cp02889h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ionic liquids are modern liquid materials with potential and actual implementation in many advanced technologies. They combine many favourable and modifiable properties but have a major inherent drawback compared to molecular liquids - slower dynamics. In previous studies we found that the dynamics of ionic liquids are significantly accelerated by the introduction of multiple ether side chains into the cations. However, the origin of the improved transport properties, whether as a result of the altered cation conformation or due to the absence of nanostructuring within the liquid as a result of the higher polarity of the ether chains, remained to be clarified. Therefore, we prepared two novel sets of methylammonium based ionic liquids; one set with three ether substituents and another set with three butyl side chains, in order to compare their dynamic properties and liquid structures. Using a range of anions, we show that the dynamics of the ether-substituted cations are systematically and distinctly accelerated. Liquefaction temperatures are lowered and fragilities increased, while at the same time cation-anion distances are slightly larger for the alkylated samples. Furthermore, pronounced liquid nanostructures were not observed. Molecular dynamics simulations demonstrate that the origin of the altered properties of the ether substituted ionic liquids is primarily due to a curled ether chain conformation, in contrast to the alkylated cations where the alkyl chains retain a linear conformation. Thus, the observed structure-property relations can be explained by changes in the geometric shape of the cations, rather than by the absence of a liquid nanostructure. Application of quantum chemical calculations to a simplified model system revealed that intramolecular hydrogen-bonding is responsible for approximately half of the stabilisation of the curled ether-cations, whereas the other half stems from non-specific long-range interactions. These findings give more detailed insights into the structure-property relations of ionic liquids and will guide the development of ionic liquids that do not suffer from slow dynamics.
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Affiliation(s)
- Daniel Rauber
- Department of Chemistry, Saarland University, Campus B2.2, 66123, Saarbrücken, Germany.
| | - Frederik Philippi
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London W12 0BZ, UK
| | - Björn Kuttich
- INM-Leibniz Institute for New Materials, Campus D2.2, 66123, Saarbrücken, Germany
| | - Julian Becker
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London W12 0BZ, UK
| | - Tobias Kraus
- Department of Chemistry, Saarland University, Campus B2.2, 66123, Saarbrücken, Germany. .,INM-Leibniz Institute for New Materials, Campus D2.2, 66123, Saarbrücken, Germany
| | - Patricia Hunt
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London W12 0BZ, UK.,School of Chemical and Physical Sciences, Victoria University of Wellington, New Zealand
| | - Tom Welton
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London W12 0BZ, UK
| | - Rolf Hempelmann
- Department of Chemistry, Saarland University, Campus B2.2, 66123, Saarbrücken, Germany.
| | - Christopher W M Kay
- Department of Chemistry, Saarland University, Campus B2.2, 66123, Saarbrücken, Germany. .,London Centre for Nanotechnology, University College London, 17-19 Gordon Street, London WC1H 0AH, UK.
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116
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Lee JS, Saroha R, Oh SH, Shin DH, Jeong SM, Kim JK, Cho JS. Rational Design of Perforated Bimetallic (Ni, Mo) Sulfides/N-doped Graphitic Carbon Composite Microspheres as Anode Materials for Superior Na-Ion Batteries. SMALL METHODS 2021; 5:e2100195. [PMID: 34928059 DOI: 10.1002/smtd.202100195] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 06/18/2021] [Indexed: 06/14/2023]
Abstract
Highly conductive 3D ordered mesoporous Ni7 S6 -MoS2 /N-doped graphitic carbon (NGC) composite (P-NiMoS/C) microspheres are prepared as anode materials for Na-ion batteries. The rationally designed nanostructure comprises stable Ni7 S6 - and MoS2 -phases along with the homogeneously distributed ordered mesopores (ϕ = 50 nm) over the external and internal structures generated through thermal decomposition of polystyrene nanobeads (ϕ = 100 nm). Therefore, the P-NiMoS/C microspheres deliver initial discharge capacities of 662, 419, 373, 300, 231, 181, and 146 mA h g-1 at current densities of 0.5, 1, 2, 4, 6, 8, and 10 A g-1 , respectively. Furthermore, P-NiMoS/C exhibits a stable discharge capacity of 444 mA h g-1 at the end of the 150th cycle at a current density of 0.5 A g-1 , indicating higher cycling stability than the filled, that is, non-mesoporous, Ni3 S2 -MoS2 /NGC (F-NiMoS/C) microspheres and filled carbon-free Ni3 S2 -MoS2 (F-NiMoS) microspheres. The superior electrochemical performance of P-NiMoS/C microspheres is attributed to the rapid Na+ ion diffusion, alleviation of severe volume stress during prolonged cycling, and higher electrical conductivity of NGC, which results in fast charge transfer during the redox processes. The results in the present study can provide fundamental knowledge for the development of multicomponent, porous, and highly conductive anodes for various applications.
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Affiliation(s)
- Jae Seob Lee
- Department of Engineering Chemistry, Chungbuk National University, Chungbuk, 361-763, Republic of Korea
| | - Rakesh Saroha
- Department of Engineering Chemistry, Chungbuk National University, Chungbuk, 361-763, Republic of Korea
| | - Se Hwan Oh
- Department of Engineering Chemistry, Chungbuk National University, Chungbuk, 361-763, Republic of Korea
| | - Dong Hyeok Shin
- Department of Engineering Chemistry, Chungbuk National University, Chungbuk, 361-763, Republic of Korea
| | - Sang Mun Jeong
- Department of Chemical Engineering, Chungbuk National University, Chungbuk, 361-763, Republic of Korea
| | - Jae-Kwang Kim
- Department of Solar & Energy Engineering, Cheongju University, Cheongju, Chungbuk, 28503, Republic of Korea
| | - Jung Sang Cho
- Department of Engineering Chemistry, Chungbuk National University, Chungbuk, 361-763, Republic of Korea
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117
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Kostyniuk A, Bajec D, Prašnikar A, Likozar B. Catalytic hydrocracking, hydrogenation, and isomerization reactions of model biomass tar over (W/Ni)-zeolites. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.06.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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118
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Lee MTW, Mahy W, Rackham MD. The medicinal chemistry of mitochondrial dysfunction: a critical overview of efforts to modulate mitochondrial health. RSC Med Chem 2021; 12:1281-1311. [PMID: 34458736 PMCID: PMC8372206 DOI: 10.1039/d1md00113b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/17/2021] [Indexed: 12/16/2022] Open
Abstract
Mitochondria are subcellular organelles that perform a variety of critical biological functions, including ATP production and acting as hubs of immune and apoptotic signalling. Mitochondrial dysfunction has been extensively linked to the pathology of multiple neurodegenerative disorders, resulting in significant investment from the drug discovery community. Despite extensive efforts, there remains no disease modifying therapies for neurodegenerative disorders. This manuscript aims to review the compounds historically used to modulate the mitochondrial network through the lens of modern medicinal chemistry, and to offer a perspective on the evidence that relevant exposure was achieved in a representative model and that exposure was likely to result in target binding and engagement of pharmacology. We hope this manuscript will aid the community in identifying those targets and mechanisms which have been convincingly (in)validated with high quality chemical matter, and those for which an opportunity exists to explore in greater depth.
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Affiliation(s)
| | - William Mahy
- MSD The Francis Crick Institute 1 Midland Road London NW1 1AT UK
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119
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Ryu S, Ha NY, Ahn YH, Park JY, Lee S. Light intensity dependence of organic solar cell operation and dominance switching between Shockley-Read-Hall and bimolecular recombination losses. Sci Rep 2021; 11:16781. [PMID: 34408249 PMCID: PMC8373965 DOI: 10.1038/s41598-021-96222-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 08/04/2021] [Indexed: 02/07/2023] Open
Abstract
We investigated the variation of current density-voltage (J-V) characteristics of an organic solar cell (OSC) in the dark and at 9 different light intensities ranging from 0.01 to 1 sun of the AM1.5G spectrum. All three conventional parameters, short-circuit currents (Jsc), open-circuit voltage (Voc), and Fill factor (FF), representing OSC performance evolved systematically in response to light intensity increase. Unlike Jsc that showed quasi-linear monotonic increase, Voc and FF showed distinctive non-monotonic variations. To elucidate the origin of such variations, we performed extensive simulation studies including Shockley-Read-Hall (SRH) recombination losses. Simulation results were sensitive to defect densities, and simultaneous agreement to 10 measured J-V curves was possible only with the defect density of [Formula: see text]. Based on analyses of simulation results, we were able to separate current losses into SRH- and bimolecular-recombination components and, moreover, identify that the competition between SRH- and bimolecular-loss currents were responsible for the aforementioned variations in Jsc, Voc, and FF. In particular, we verified that apparent demarcation in Voc, and FF variations, which seemed to appear at different light intensities, originated from the same mechanism of dominance switching between recombination losses.
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Affiliation(s)
- Shinyoung Ryu
- Department of Energy Systems Research, Ajou University, Suwon, 16499, Korea
| | - Na Young Ha
- Department of Energy Systems Research, Ajou University, Suwon, 16499, Korea
- Department of Physics, Ajou University, Suwon, 16499, Korea
| | - Y H Ahn
- Department of Energy Systems Research, Ajou University, Suwon, 16499, Korea
- Department of Physics, Ajou University, Suwon, 16499, Korea
| | - Ji-Yong Park
- Department of Energy Systems Research, Ajou University, Suwon, 16499, Korea
- Department of Physics, Ajou University, Suwon, 16499, Korea
| | - Soonil Lee
- Department of Energy Systems Research, Ajou University, Suwon, 16499, Korea.
- Department of Physics, Ajou University, Suwon, 16499, Korea.
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120
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Slassi S, Aarjane M, Amine A. A novel imidazole‐derived Schiff base as selective and sensitive colorimetric chemosensor for fluorescent detection of Cu
2+
in methanol with mixed aqueous medium. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6408] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Siham Slassi
- Laboratory of Chemistry/Biology Applied to the Environment, Faculty of Science Moulay Ismail University Meknes Morocco
| | - Mohammed Aarjane
- Laboratory of Chemistry/Biology Applied to the Environment, Faculty of Science Moulay Ismail University Meknes Morocco
| | - Amina Amine
- Laboratory of Chemistry/Biology Applied to the Environment, Faculty of Science Moulay Ismail University Meknes Morocco
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121
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Zhang X, Zhang S, Yang Z, Wang Z, Tian X, Zhou R. Self-cascade MoS 2 nanozymes for efficient intracellular antioxidation and hepatic fibrosis therapy. NANOSCALE 2021; 13:12613-12622. [PMID: 34264260 DOI: 10.1039/d1nr02366g] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Cascade biocatalytic reactions involving multiple antioxidative enzymes are necessary in living cells to regulate cellular metabolism and redox homeostasis. Substantial efforts have been made to construct cascade reactions through engineered enzyme mimics to improve intracellular metabolic flux, especially under pathophysiological conditions. Here, we show that MoS2 nanozymes exhibit activities of four major cellular cascade antioxidant enzymes, including superoxide dismutase, catalase, peroxidase, and glutathione peroxidase. Meanwhile, MoS2 nanozymes attenuate electron transfer in cytochrome c/H2O2 to ameliorate the inherent antioxidant defense system under stress conditions. Thus, MoS2 nanozymes function as a self-cascade platform to inhibit intracellular reactive oxygen species (ROS) production by modulating mitochondrial function and scavenging abundant ROS through their intrinsic antioxidant capacity. Density functional theory calculations reveal the underlying mechanisms of the intracellular environment-dependent catalase-like activity of MoS2 nanozymes. Furthermore, we find that the MoS2 nanozymes play a cytoprotective role in cells and significantly improve the treatment outcomes in a hepatic fibrosis mouse model. These results demonstrate the ROS-scavenging capacity of a single-component MoS2 nanozyme-based cascade reaction system and reveal the in-depth mechanism, which may advance the development of nanozyme-based antioxidative agents.
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Affiliation(s)
- Xinyu Zhang
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030006, China.
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122
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Lim DH, Ha JW, Choi H, Yoon SC, Lee BR, Ko SJ. Recent progress of ultra-narrow-bandgap polymer donors for NIR-absorbing organic solar cells. NANOSCALE ADVANCES 2021; 3:4306-4320. [PMID: 36133474 PMCID: PMC9419751 DOI: 10.1039/d1na00245g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/03/2021] [Indexed: 05/24/2023]
Abstract
Solution-processed near-infrared (NIR)-absorbing organic solar cells (OSCs) have been explored worldwide because of their potential as donor:acceptor bulk heterojunction (BHJ) blends. In addition, NIR-absorbing OSCs have attracted attention as high specialty equipment in next-generation optoelectronic devices, such as semitransparent solar cells and NIR photodetectors, owing to their feasibility for real-time commercial application in industry. With the introduction of NIR-absorbing non-fullerene acceptors (NFAs), the value of OSCs has been increasing while organic donor materials capable of absorbing light in the NIR region have not been actively studied yet compared to NIR-absorbing acceptor materials. Therefore, we present an overall understanding of NIR donors.
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Affiliation(s)
- Dae-Hee Lim
- Division of Advanced Materials, Korea Research Institute of Chemical Technology (KRICT) Daejeon 34114 South Korea
| | - Jong-Woon Ha
- Division of Advanced Materials, Korea Research Institute of Chemical Technology (KRICT) Daejeon 34114 South Korea
| | - Hyosung Choi
- Department of Chemistry, Institute of Nano Science & Technology, Research Institute for Natural Sciences, Hanyang University 04763 Seoul South Korea
| | - Sung Cheol Yoon
- Division of Advanced Materials, Korea Research Institute of Chemical Technology (KRICT) Daejeon 34114 South Korea
| | - Bo Ram Lee
- Department of Physics, Pukyong National University 45 Yongso-ro, Nam-Gu Busan 48513 South Korea
| | - Seo-Jin Ko
- Division of Advanced Materials, Korea Research Institute of Chemical Technology (KRICT) Daejeon 34114 South Korea
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123
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Lu X, Wen Y, Zhang S, Zhang W, Chen Y, Shen Y, Lemieux MJ, Campbell RE. Photocleavable proteins that undergo fast and efficient dissociation. Chem Sci 2021; 12:9658-9672. [PMID: 34349937 PMCID: PMC8293800 DOI: 10.1039/d1sc01059j] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/31/2021] [Indexed: 12/04/2022] Open
Abstract
Photocleavable molecules can enable the light-dependent modulation of biomolecular activities with high spatiotemporal precision. We have previously reported a photocleavable protein (PhoCl1) that, uniquely, is a fully genetically encoded photocleavable molecule that can be introduced into cells in the form of its corresponding gene to enable optogenetic control of biomolecular activities. However, the first generation PhoCl1 exhibited a relatively slow rate of dissociation, potentially limiting its utility. Here, we report the X-ray crystal structures of the PhoCl1 green state, red state, and cleaved empty barrel. Molecular dynamics (MD) simulations were performed to provide insight into the precise dissociation mechanism. Using structure-guided engineering and directed evolution, we have developed PhoCl2c with higher contrast ratio and PhoCl2f with faster dissociation. We characterized the performance of these new variants as purified proteins and in cultured cells. Our results demonstrate that PhoCl2 variants exhibit faster and more efficient dissociation, which should enable improved optogenetic manipulations of protein localization and protein-protein interactions in living cells.
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Affiliation(s)
- Xiaocen Lu
- Department of Chemistry, University of Alberta Edmonton Alberta T6G 2G2 Canada
| | - Yurong Wen
- Department of Biochemistry, University of Alberta Edmonton Alberta T6G 2H7 Canada
| | - Shuce Zhang
- Department of Chemistry, University of Alberta Edmonton Alberta T6G 2G2 Canada
| | - Wei Zhang
- Department of Chemistry, University of Alberta Edmonton Alberta T6G 2G2 Canada
| | - Yilun Chen
- Department of Biochemistry, University of Alberta Edmonton Alberta T6G 2H7 Canada
| | - Yi Shen
- Department of Chemistry, University of Alberta Edmonton Alberta T6G 2G2 Canada
| | - M Joanne Lemieux
- Department of Biochemistry, University of Alberta Edmonton Alberta T6G 2H7 Canada
| | - Robert E Campbell
- Department of Chemistry, University of Alberta Edmonton Alberta T6G 2G2 Canada
- Department of Chemistry, The University of Tokyo Tokyo 113-0033 Japan
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124
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Richards DA, Thomas MR, Szijj PA, Foote J, Chen Y, Nogueira JCF, Chudasama V, Stevens MM. Employing defined bioconjugates to generate chemically functionalised gold nanoparticles for in vitro diagnostic applications. NANOSCALE 2021; 13:11921-11931. [PMID: 34190286 PMCID: PMC8280965 DOI: 10.1039/d1nr02584h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
Novel methods for introducing chemical and biological functionality to the surface of gold nanoparticles serve to increase the utility of this class of nanomaterials across a range of applications. To date, methods for functionalising gold surfaces have relied upon uncontrollable non-specific adsorption, bespoke chemical linkers, or non-generalisable protein-protein interactions. Herein we report a versatile method for introducing functionality to gold nanoparticles by exploiting the strong interaction between chemically functionalised bovine serum albumin (f-BSA) and citrate-capped gold nanoparticles (AuNPs). We establish the generalisability of the method by introducing a variety of functionalities to gold nanoparticles using cheap, commercially available chemical linkers. The utility of this approach is further demonstrated through the conjugation of the monoclonal antibody Ontruzant to f-BSA-AuNPs using inverse electron-demand Diels-Alder (iEDDA) click chemistry, a hitherto unexplored chemistry for AuNP-IgG conjugation. Finally, we show that the AuNP-Ontruzant particles generated via f-BSA-AuNPs have a greater affinity for their target in a lateral flow format when compared to conventional physisorption, highlighting the potential of this technology for producing sensitive diagnostic tests.
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Affiliation(s)
- Daniel A. Richards
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
| | - Michael R. Thomas
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
- London Centre for Nanotechnology, University College LondonLondonUK
- Department of Biochemical Engineering, University College LondonWC1E 6BT LondonUK
| | - Peter A. Szijj
- Department of Chemistry, University College LondonLondonUK
| | - James Foote
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
| | - Yiyun Chen
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
| | | | | | - Molly M. Stevens
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
- Department of Medical Biochemistry and BiophysicsStockholmSweden
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125
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Sun C, Sun L, Fan K, Shi Y, Gu J, Lin Y, Hu J, Zhang Y. A hollow Co 9S 8 rod-acidified CNT-NiCoLDH composite providing excellent electrochemical performance in asymmetric supercapacitors. Dalton Trans 2021; 50:9283-9292. [PMID: 34227633 DOI: 10.1039/d1dt01217g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Co9S8 and transition metal hydroxides are both potential pseudo-capacitance electrode materials for supercapacitors. Co9S8 has a large specific capacitance and electrochemical activity, and transition metal hydroxides have the advantages of high capacitance and redox activity due to their multiple valence metals and open layered structure. In this study, Co9S8 and NiCoLDH are used to form a Co9S8-aCNT-NiCoLDH composite electrode material by twining acidified carbon nanotubes (aCNTs) around hollow Co9S8 rods and then compounding nickel cobalt hydroxide (NiCoLDH) on the outside. aCNTs provide more electronic channels, which bring more active electrochemical reactions and absorb the volume expansion of Co9S8. The hollow Co9S8 rods and flower-like NiCoLDH structures ensure that the electrode has a highly open structure, which increases the contact area with the electrolyte and is beneficial for ion transport. The outer NiCoLDH can also reduce the volume expansion of Co9S8. These advantages ensure the high specific capacitance and rate performance of the Co9S8-aCNT-NiCoLDH electrode material. Co9S8-aCNT-NiCoLDH was used as the positive material to fabricate asymmetric supercapacitors with attractive energy density and power density, which further proved its excellent electrochemical performance.
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Affiliation(s)
- Chao Sun
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, PR China.
| | - Li Sun
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, PR China.
| | - Kaifeng Fan
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, PR China.
| | - Yan Shi
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, PR China.
| | - Jialin Gu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, PR China.
| | - Yifan Lin
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, PR China.
| | - Jingjing Hu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, PR China.
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, PR China.
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126
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A Review on Green Synthesis, Characterization and Anticancer Application of Metallic Nanoparticles. Appl Biochem Biotechnol 2021; 193:2357-2378. [PMID: 34114200 DOI: 10.1007/s12010-021-03598-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 05/28/2021] [Indexed: 10/21/2022]
Abstract
Cancer is one of the leading causes of death worldwide and also the main obstacle of accelerating anticipation. It is globally recognized as overwhelmingly challenging in terms of clinical management. Cancer is taken into account because a prime lethal disease affects different organs of the body. Even with the rapid improvements in the medical sciences, there are no proper medicines to treat specific kinds of cancer. One of the fundamental issues within the malignant growth treatment is the side effect because of conventional treatment systems. Nanotechnology might be an extremely encouraging field for the therapeutic and drug areas; thus, it assumes a crucial part in improving humankind's satisfaction. In the infield of nanotechnology, a plant-mediated fusion of metal nanoparticles has been developed as a substitute to defeat the limitations of traditional synthesis approaches similar to physical and synthetic strategies. These tunable properties of nanomaterials make them progressed apparatuses in the biomedical platform particularly for the improvement of new diagnostics and focused on therapeutics for malignancy.This review incorporates the characterization of nanoparticles with size and shape and features critical uses of biosynthesized green nanomaterials in cancer theranostics.
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127
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Huang X, Lu Y, Guo M, Du S, Han N. Recent strategies for nano-based PTT combined with immunotherapy: from a biomaterial point of view. Theranostics 2021; 11:7546-7569. [PMID: 34158866 PMCID: PMC8210617 DOI: 10.7150/thno.56482] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 05/23/2021] [Indexed: 01/04/2023] Open
Abstract
Cancer has been a great threat to humans for decades. Due to the limitations of monotherapy, combinational therapies such as photothermal therapy (PTT) and immunotherapy have gained increasing attention with expectation to overcome the shortfalls of each other and obtain satisfactory therapeutic outcomes. PTT can inhibit primary tumors by thermal ablation but usually fails to achieve complete eradication and cannot prevent metastasis and recurrence. Meanwhile, the efficacy of immunotherapy is usually attenuated by the weak immunogenicity of tumor and the immunosuppressive tumor microenvironment (ITM). Therefore, many recent studies have attempted to synergize PTT with immunotherapy in order to enhance the therapeutic efficacy. In this review, we aim to summarize the cutting-edge strategies in combining nano-based PTT with immunotherapy for cancer treatment. Herein, the combination strategies were mainly classified into four categories, including 1) nano-based PTT combined with antigens to induce host immune responses; 2) nano-based PTT in combination with immune adjuvants acting as in situ vaccines; 3) nano-based PTT synergized with immune checkpoint blockade or other regulators to relieve the ITM; 4) nano-based PTT combined with CAR-T therapy or cytokine therapy for tumor treatment. The characteristics of various photothermal agents and nanoplatforms as well as the immunological mechanisms for the synergism were also introduced in detail. Finally, we discussed the existing challenges and future prospects in combined PTT and immunotherapy.
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Affiliation(s)
| | | | | | - Shouying Du
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Ning Han
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
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128
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Kazahaya N, Katayama Y, Tsutsumi H. Contribution of Metal Additives on the Electrochemical Process Involving Solid Sulfur and Soluble Lithium Polysulfide in Lithium‐Sulfur Batteries. ChemElectroChem 2021. [DOI: 10.1002/celc.202100353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Natsuho Kazahaya
- Department of Applied Chemistry, Graduate School of Sciences and Technology for Innovation Yamaguchi University Tokiwadai Ube 755-8611 Japan
| | - Yu Katayama
- Department of Applied Chemistry, Graduate School of Sciences and Technology for Innovation Yamaguchi University Tokiwadai Ube 755-8611 Japan
| | - Hiromori Tsutsumi
- Department of Applied Chemistry, Graduate School of Sciences and Technology for Innovation Yamaguchi University Tokiwadai Ube 755-8611 Japan
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129
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Hennequin LM, Polizzi K, Fennell PS, Hallett JP. Rhododendron and Japanese Knotweed: invasive species as innovative crops for second generation biofuels for the ionoSolv process. RSC Adv 2021; 11:18395-18403. [PMID: 35480936 PMCID: PMC9033429 DOI: 10.1039/d1ra01943k] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/04/2021] [Indexed: 12/20/2022] Open
Abstract
We investigated the potential of two terrestrial biomass invasive species in the United-Kingdom as lignocellulosic biofuel feedstocks: Japanese Knotweed (Fallopia japonica) and Rhododendron (Rhododendron ponticum). We demonstrate that a pretreatment technique using a low-cost protic ionic liquid, the ionoSolv process, can be used for such types of plant species considered as waste, to allow their integration into a biorefinery. N,N,N-Dimethylbutylammonium hydrogen sulfate ([DMBA][HSO4]) was able to fractionate the biomass into a cellulose-rich pulp and a lignin stream at high temperatures (150–170 °C) and short reaction times (15–60 minutes). More than 70–80% of the subsequent cellulose was hydrolysed into fermentable sugars, which were fermented into the renewable energy vector bioethanol. Japanese Knotweed (Fallopia japonica) and Rhododendron (Rhododendron ponticum), two invasive species in the UK that are an environmental threat and economic burden, can be integrated into a flexible ionic liquid based biorefinery process to produce bioenergy and chemicals.![]()
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Affiliation(s)
- Louis M Hennequin
- Department of Chemical Engineering, Imperial College London Exhibition Road London UK SW7 2AZ
| | - Karen Polizzi
- Department of Chemical Engineering, Imperial College London Exhibition Road London UK SW7 2AZ
| | - Paul S Fennell
- Department of Chemical Engineering, Imperial College London Exhibition Road London UK SW7 2AZ
| | - Jason P Hallett
- Department of Chemical Engineering, Imperial College London Exhibition Road London UK SW7 2AZ
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130
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Affiliation(s)
- Panpan Li
- National Engineering Research Center for Colloidal Materials School of Chemistry and Chemical Engineering Shandong University Jinan Shandong 250100 P. R. China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry Shandong University Ministry of Education Jinan Shandong 250100 P. R. China
| | - Xu Wang
- National Engineering Research Center for Colloidal Materials School of Chemistry and Chemical Engineering Shandong University Jinan Shandong 250100 P. R. China
- Key Laboratory of Colloid and Interface Chemistry Shandong University Ministry of Education Jinan Shandong 250100 P. R. China
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131
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Singh P, Batra A, Singh KN, Mritunjay M. Transition-Metal-Free Strategies for the Synthesis of C-1 Aryl-Substituted Tetrahydroisoquinolines. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1344-2074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Abstract1-Aryl-1,2,3,4-tetrahydroisoquinolines are important structural motifs and are widely found in bioactive molecules, pharmaceuticals and synthetic drugs. In view of increasing environmental awareness, the development of transition-metal-free strategies for the synthesis of these compounds is highly desirable. Metal-free oxidative coupling and lithiation methodologies have emerged as effective tools in this area as they exclude the use of transition-metal catalysts and help in reducing unwanted and toxic-metal-based chemical waste in the environment. This review highlights recent advances on the direct arylation of tetrahydroisoquinolines for the synthesis of the title compounds in the absence of a metal salt. Also, the emphasis has been placed on mechanistic considerations of these reactions.1 Introduction2 Arylation of Tetrahydroisoquinolines via Oxidative Coupling2.1 Arylation Using Grignard Reagents2.2 Arylation Using Other Organometallic Reagents2.3 Arylation Using Aryl Organoboranes or Arenes3 Arylation of Tetrahydroisoquinolines via Lithiation3.1 Intermolecular Arylation3.2 Intramolecular Arylation4 Conclusion and Outlook
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Affiliation(s)
| | - Aanchal Batra
- PG Department of Chemistry, Mehr Chand Mahajan DAV College for Women
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132
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Danu BY, Agorku ES, Ampong FK, Awudza JAM, Torve V, Danquah IMK, Ama OM, Osifo PO, Ray SS. Iron Sulfide Functionalized Polyaniline Nanocomposite for the Removal of Eosin Y from Water: Equilibrium and Kinetic Studies. POLYMER SCIENCE SERIES B 2021. [DOI: 10.1134/s1560090421030040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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133
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Shang H, Zhou H, Jingjing G, Zhang H, Li T, Qiao Y, Niu W, Qu M, Xie Z, Peng G. Improving the Cyclic Stability of LiNi
0.5
Mn
1.5
O
4
Cathode by Modifying the Interface Film with 8‐Hydroxyquinoline. ChemistrySelect 2021. [DOI: 10.1002/slct.202100754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Huimin Shang
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 PR China
- University of Chinese Academy of Sciences Beijing 100049 PR China
| | - Hanxiao Zhou
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 PR China
- University of Chinese Academy of Sciences Beijing 100049 PR China
| | - Gao Jingjing
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 PR China
- Chengdu Organic Chemicals Co. Ltd. Chinese Academy of Sciences Chengdu 610041 PR China
| | - Huan Zhang
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 PR China
- University of Chinese Academy of Sciences Beijing 100049 PR China
| | - Tianhui Li
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 PR China
- University of Chinese Academy of Sciences Beijing 100049 PR China
| | - Yingjun Qiao
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 PR China
- University of Chinese Academy of Sciences Beijing 100049 PR China
| | - Wenchao Niu
- Department of Chemistry and Chemical Engineering Beijing University of Technology Beijing 100124 PR China
| | - Meizhen Qu
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 PR China
- Chengdu Organic Chemicals Co. Ltd. Chinese Academy of Sciences Chengdu 610041 PR China
| | - Zhengwei Xie
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 PR China
- Chengdu Organic Chemicals Co. Ltd. Chinese Academy of Sciences Chengdu 610041 PR China
| | - Gongchang Peng
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 PR China
- Chengdu Organic Chemicals Co. Ltd. Chinese Academy of Sciences Chengdu 610041 PR China
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134
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PD1 blockade potentiates the therapeutic efficacy of photothermally-activated and MRI-guided low temperature-sensitive magnetoliposomes. J Control Release 2021; 332:419-433. [PMID: 33677010 DOI: 10.1016/j.jconrel.2021.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 02/08/2021] [Accepted: 03/01/2021] [Indexed: 12/22/2022]
Abstract
This study investigates the effect of PD1 blockade on the therapeutic efficacy of novel doxorubicin-loaded temperature-sensitive liposomes. Herein, we report photothermally-activated, low temperature-sensitive magnetoliposomes (mLTSL) for efficient drug delivery and magnetic resonance imaging (MRI). The mLTSL were prepared by embedding small nitrodopamine palmitate (NDPM)-coated iron oxide nanoparticles (IO NPs) in the lipid bilayer of low temperature-sensitive liposomes (LTSL), using lipid film hydration and extrusion. Doxorubicin (DOX)-loaded mLTSL were characterized using dynamic light scattering, differential scanning calorimetry, electron microscopy, spectrofluorimetry, and atomic absorption spectroscopy. Photothermal experiments using 808 nm laser irradiation were conducted. In vitro photothermal DOX release studies and cytotoxicity was assessed using flow cytometry and resazurin viability assay, respectively. In vivo DOX release and tumor accumulation of mLTSL(DOX) were assessed using fluorescence and MR imaging, respectively. Finally, the therapeutic efficacy of PD1 blockade in combination with photothermally-activated mLTSL(DOX) in CT26-tumor model was evaluated by monitoring tumor growth, cytokine release and immune cell infiltration in the tumor tissue. Interestingly, efficient photothermal heating was obtained by varying the IO NPs content and the laser power, where on-demand burst DOX release was achievable in vitro and in vivo. Moreover, our mLTSL exhibited promising MR imaging properties with high transverse r2 relaxivity (333 mM-1 s-1), resulting in superior MR imaging in vivo. Furthermore, mLTSL(DOX) therapeutic efficacy was potentiated in combination with anti-PD1 mAb, resulting in a significant reduction in CT26 tumor growth via immune cell activation. Our study highlights the potential of combining PD1 blockade with mLTSL(DOX), where the latter could facilitate chemo/photothermal therapy and MRI-guided drug delivery.
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135
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Chen Y, Liu C, Zhu S, Liang X, Zhang Q, Luo X, Yuan L, Song L. PD-1/PD-L1 immune checkpoint blockade-based combinational treatment: Immunotherapeutic amplification strategies against colorectal cancer. Int Immunopharmacol 2021; 96:107607. [PMID: 33831809 DOI: 10.1016/j.intimp.2021.107607] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 12/20/2022]
Abstract
Colorectal cancer (CRC) is one of the most common malignant tumours of the digestive system, and most patients are already in an advanced stage at the time of diagnosis. Moreover, current single-use immune checkpoint inhibitors (ICIs), such as programmed cell death-1 (PD-1) and programmed cell death-ligand 1 (PD-L1) inhibitors, are only effective for some advanced CRC patients with microsatellite instability-high (MSI-H), and most patients may be unable to benefit from it due to a lack of CD8+ T cells in the tumour microenvironment. Additionally, the subtype of CRC has emerged as a factor affecting treatment responses, with immunogenic subtypes carrying a better prognosis. In this review, we discuss bottlenecks encountered with the single use of PD-1/PD-L1 inhibitors and summarize the research status and mechanisms of PD-1/PD-L1 inhibitor-based immunotherapeutic amplification strategies, including chemotherapy, radiotherapy, photomediated therapy and other immunotherapies used for colorectal cancer.
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Affiliation(s)
- Yuxiang Chen
- School of Medical and Life Sciences/Reproductive & Women-children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China
| | - Chi Liu
- School of Medical and Life Sciences/Reproductive & Women-children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China
| | - Shaomi Zhu
- School of Medical and Life Sciences/Reproductive & Women-children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China
| | - Xin Liang
- School of Medical and Life Sciences/Reproductive & Women-children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China
| | - Qinxiu Zhang
- School of Medical and Life Sciences/Reproductive & Women-children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China
| | - Xiaohong Luo
- School of Medical and Life Sciences/Reproductive & Women-children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China
| | - Lan Yuan
- School of Medical and Life Sciences/Reproductive & Women-children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China.
| | - Linjiang Song
- School of Medical and Life Sciences/Reproductive & Women-children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China.
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136
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Agrawal T, Martin RT, Collins S, Wilhelm Z, Edwards MD, Gutierrez O, Sieber JD. Access to Chiral Diamine Derivatives through Stereoselective Cu-Catalyzed Reductive Coupling of Imines and Allenamides. J Org Chem 2021; 86:5026-5046. [PMID: 33724828 PMCID: PMC8025098 DOI: 10.1021/acs.joc.0c02971] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Indexed: 01/04/2023]
Abstract
Chiral 1,2-diamino compounds are important building blocks in organic chemistry for biological applications and as asymmetric inducers in stereoselective synthesis that are challenging to prepare in a straightforward and stereoselective manner. Herein, we disclose a cost-effective and readily available Cu-catalyzed system for the reductive coupling of a chiral allenamide with N-alkyl substituted aldimines to access chiral 1,2-diamino synthons as single stereoisomers in high yields. The method shows broad reaction scope and high diastereoselectivity and can be easily scaled using standard Schlenk techniques. Mechanistic investigations by density functional theory calculations identified the mechanism and origin of stereoselectivity. In particular, the addition to the imine was shown to be reversible, which has implications toward development of catalyst-controlled stereoselective variants of the identified reductive coupling of imines and allenamides.
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Affiliation(s)
- Toolika Agrawal
- Department
of Chemistry, Virginia Commonwealth University, 1001 West Main Street, Richmond, Virginia 23284-3208, United States
| | - Robert T. Martin
- Department
of Chemistry and Biochemistry, University
of Maryland, College
Park, Maryland 20742, United States
| | - Stephen Collins
- Department
of Chemistry, Virginia Commonwealth University, 1001 West Main Street, Richmond, Virginia 23284-3208, United States
| | - Zachary Wilhelm
- Department
of Chemistry and Biochemistry, University
of Maryland, College
Park, Maryland 20742, United States
| | - Mytia D. Edwards
- Department
of Chemistry, Virginia Commonwealth University, 1001 West Main Street, Richmond, Virginia 23284-3208, United States
| | - Osvaldo Gutierrez
- Department
of Chemistry and Biochemistry, University
of Maryland, College
Park, Maryland 20742, United States
| | - Joshua D. Sieber
- Department
of Chemistry, Virginia Commonwealth University, 1001 West Main Street, Richmond, Virginia 23284-3208, United States
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137
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Kong X, Lu P, Liu C, Guo Y, Yang Y, Peng Y, Wang F, Bo Z, Dou X, Shi H, Meng J. A combination of PD‑1/PD‑L1 inhibitors: The prospect of overcoming the weakness of tumor immunotherapy (Review). Mol Med Rep 2021; 23:362. [PMID: 33760188 PMCID: PMC7985997 DOI: 10.3892/mmr.2021.12001] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 02/08/2021] [Indexed: 12/15/2022] Open
Abstract
Programmed cell death protein-1 (PD-1)/programmed death protein ligand-1 (PD-L1) inhibitors for treatment of a various types of cancers have revolutionized cancer immunotherapy. However, PD-1/PD-L1 inhibitors are associated with a low response rate and are only effective on a small number of patients with cancer. Development of an anti-PD-1/PD-L1 sensitizer for improving response rate and effectiveness of immunotherapy is a challenge. The present study reviews the synergistic effects of PD-1/PD-L1 inhibitor with oncolytic virus, tumor vaccine, molecular targeted drugs, immunotherapy, chemotherapy, radiotherapy, intestinal flora and traditional Chinese medicine, to provide information for development of effective combination therapies.
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Affiliation(s)
- Xianbin Kong
- Integrated Traditional Chinese and Western Medicine Laboratory, College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Peng Lu
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Chuanxin Liu
- Department of Pharmaceutical Analysis, School of Chinese Materia Medical, Beijing University of Chinese Medicine, Beijing 102488, P.R. China
| | - Yuzhu Guo
- Department of Radiotherapy, Tianjin Hospital, Tianjin 300211, P.R. China
| | - Yuying Yang
- Integrated Traditional Chinese and Western Medicine Laboratory, College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Yingying Peng
- Integrated Traditional Chinese and Western Medicine Laboratory, College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Fangyuan Wang
- Integrated Traditional Chinese and Western Medicine Laboratory, College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Zhichao Bo
- Integrated Traditional Chinese and Western Medicine Laboratory, College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Xiaoxin Dou
- Integrated Traditional Chinese and Western Medicine Laboratory, College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Haoyang Shi
- Integrated Traditional Chinese and Western Medicine Laboratory, College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Jingyan Meng
- Integrated Traditional Chinese and Western Medicine Laboratory, College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
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138
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Arunjegan A, Rajaji P, Sivanesan S, Panneerselvam P. A Turn-ON fluorometric biosensor based on ssDNA immobilized with a metal phenolic nanomaterial for the sequential detection of Pb(ii) and epirubicin cancer drug. RSC Adv 2021; 11:12361-12373. [PMID: 35423732 PMCID: PMC8696957 DOI: 10.1039/d1ra00939g] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/09/2021] [Indexed: 01/28/2023] Open
Abstract
In this paper, we propose a fluorescent biosensor for the sequential detection of Pb2+ ions and the cancer drug epirubicin (Epn) using the interactions between label-free guanine-rich ssDNA (LFGr-ssDNA), acridine orange (AO), and a metal-phenolic nanomaterial (i.e., nano-monoclinic copper-tannic acid (NMc-CuTA)). An exploration of the sensing mechanism shows that LFGr-ssDNA and AO strongly adsorb on NMc-CuTA through π-π stacking and electrostatic interactions, and this results in the fluorescence quenching of AO. In order to sense the target Pb2+, initially, LFGr-ssDNA specifically binds with Pb2+ ions to form a G4 complex (G-Pb2+-G base pair), which was released from the surface of NMc-CuTA with strong AO fluorescence enhancement (Turn-ON). The subsequent addition of a biothiol, like cysteine (Cys), to the G4 complex decreases the fluorescence, as the Pb2+ ions released from the G4 complex have a higher interaction affinity with the sulfur atoms of Cys; this further induces the unwinding of the G4 complex to form LFGr-ssDNA. Finally, Epn was added to this, which intercalates with LFGr-ssDNA to form a G4 complex via G-Epn-G, resulting in fluorescence recovery (Turn-ON). Accordingly, the Turn-ON fluorescent probe had subsequent limits of detection of 1.5 and 5.6 nM for Pb2+ and Epn, respectively. Hence, the reported NMc-CuTA-based sensing platform has potential applications for the detection of Pb2+ and Epn in real samples with good sensitivity and selectivity.
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Affiliation(s)
- A Arunjegan
- Department of Chemistry, SRM Institute of Science and Technology Kattankulathur Tamil Nadu 603 203 India +91 9688538842
| | - P Rajaji
- Department of Chemistry, SRM Institute of Science and Technology Kattankulathur Tamil Nadu 603 203 India +91 9688538842
| | - S Sivanesan
- Department of Applied Science and Technology, A. C Technology, Anna University Chennai Tamil Nadu 600 025 India
| | - P Panneerselvam
- Department of Chemistry, SRM Institute of Science and Technology Kattankulathur Tamil Nadu 603 203 India +91 9688538842
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139
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Cremolini C, Vitale E, Rastaldo R, Giachino C. Advanced Nanotechnology for Enhancing Immune Checkpoint Blockade Therapy. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:661. [PMID: 33800368 PMCID: PMC7998763 DOI: 10.3390/nano11030661] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/28/2021] [Accepted: 03/03/2021] [Indexed: 12/19/2022]
Abstract
Immune checkpoint receptor signaling pathways constitute a prominent class of "immune synapse," a cell-to-cell connection that represses T-lymphocyte effector functions. As a possible evolutionary countermeasure against autoimmunity, this strategy is aimed at lowering potential injury to uninfected cells in infected tissues and at minimizing systemic inflammation. Nevertheless, tumors can make use of these strategies to escape immune recognition, and consequently, such mechanisms represent chances for immunotherapy intervention. Recent years have witnessed the advance of pharmaceutical nanotechnology, or nanomedicine, as a possible strategy to ameliorate immunotherapy technical weaknesses thanks to its intrinsic biophysical properties and multifunctional modifying capability. To improve the long-lasting response rate of checkpoint blockade therapy, nanotechnology has been employed at first for the delivery of single checkpoint inhibitors. Further, while therapy via single immune checkpoint blockade determines resistance and a restricted period of response, strong interest has been raised to efficiently deliver immunomodulators targeting different inhibitory pathways or both inhibitory and costimulatory pathways. In this review, the partially explored promise in implementation of nanotechnology to improve the success of immune checkpoint therapy and solve the limitations of single immune checkpoint inhibitors is debated. We first present the fundamental elements of the immune checkpoint pathways and then outline recent promising results of immune checkpoint blockade therapy in combination with nanotechnology delivery systems.
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Affiliation(s)
- Chiara Cremolini
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56126 Pisa, Italy;
| | - Emanuela Vitale
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Italy; (E.V.); (C.G.)
| | - Raffaella Rastaldo
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Italy; (E.V.); (C.G.)
| | - Claudia Giachino
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Italy; (E.V.); (C.G.)
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140
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Yusuf M, Salaam Farooqi A, Azad Alam M, Kok Keong L, Hellgardt K, Abdullah B. Performance of Ni/Al2O3-MgO catalyst for Dry Reforming of Methane: Effect of preparation routes. ACTA ACUST UNITED AC 2021. [DOI: 10.1088/1757-899x/1092/1/012069] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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141
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Cullen A, Rajagopal A, Heintz K, Heise A, Murphy R, Sazanovich IV, Greetham GM, Towrie M, Long C, Fitzgerald-Hughes D, Pryce MT. Exploiting a Neutral BODIPY Copolymer as an Effective Agent for Photodynamic Antimicrobial Inactivation. J Phys Chem B 2021; 125:1550-1557. [PMID: 33538173 PMCID: PMC8279490 DOI: 10.1021/acs.jpcb.0c09634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 01/15/2021] [Indexed: 12/24/2022]
Abstract
We report the synthesis and photophysical properties of a neutral BODIPY photosensitizing copolymer (poly-8-(4-hydroxymethylphenyl)-4,4-difluoro-2,6-diethynyl-4-bora-3a,4a-diaza-s-indacene) containing ethynylbenzene links between the BODIPY units. The copolymer absorbs further towards the red in the UV-vis spectrum compared to the BODIPY precursor. Photolysis of the polymer produces a singlet excited state which crosses to the triplet surface in less than 300 ps. This triplet state was used to form singlet oxygen with a quantum yield of 0.34. The steps leading to population of the triplet state were studied using time-resolved spectroscopic techniques spanning the pico- to nanosecond timescales. The ability of the BODIPY polymer to generate a biocidal species for bactericidal activity in both solution- and coating-based studies was assessed. When the BODIPY copolymer was dropcast onto a surface, 4 log and 6 log reductions in colony forming units/ml representative of Gram-positive and Gram-negative bacteria, respectively, under illumination at 525 nm were observed. The potent broad-spectrum antimicrobial activity of a neutral metal-free copolymer when exposed to visible light conditions may have potential clinical applications in infection management.
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Affiliation(s)
- Aoibhín
A. Cullen
- School
of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Ashwene Rajagopal
- School
of Chemical Sciences, Dublin City University, Dublin 9, Ireland
- Department
of Clinical Microbiology, RCSI Education and Research, Royal College of Surgeons in Ireland, Beaumont Hospital, Beaumont, Dublin 9, Ireland
| | - Katharina Heintz
- School
of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Andreas Heise
- Department
of Chemistry, Science Foundation Ireland (SFI) Centre for Research
in Medical Devices (CURAM), The Science Foundation Ireland (SFI) Advanced
Materials and Bioengineering Research Centre (AMBER), RCSI University of Medicine and Health Science, 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Robert Murphy
- Department
of Chemistry, Science Foundation Ireland (SFI) Centre for Research
in Medical Devices (CURAM), The Science Foundation Ireland (SFI) Advanced
Materials and Bioengineering Research Centre (AMBER), RCSI University of Medicine and Health Science, 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Igor V. Sazanovich
- Central
Laser Facility, Science & Technology Facilities Council, Research
Complex at Harwell, Rutherford Appleton
Laboratory, Didcot OX11 0QX, U.K.
| | - Gregory M. Greetham
- Central
Laser Facility, Science & Technology Facilities Council, Research
Complex at Harwell, Rutherford Appleton
Laboratory, Didcot OX11 0QX, U.K.
| | - Michael Towrie
- Central
Laser Facility, Science & Technology Facilities Council, Research
Complex at Harwell, Rutherford Appleton
Laboratory, Didcot OX11 0QX, U.K.
| | - Conor Long
- School
of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Deirdre Fitzgerald-Hughes
- Department
of Clinical Microbiology, RCSI Education and Research, Royal College of Surgeons in Ireland, Beaumont Hospital, Beaumont, Dublin 9, Ireland
| | - Mary T. Pryce
- School
of Chemical Sciences, Dublin City University, Dublin 9, Ireland
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142
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Mohapatra A, Uthaman S, Park IK. External and Internal Stimuli-Responsive Metallic Nanotherapeutics for Enhanced Anticancer Therapy. Front Mol Biosci 2021; 7:597634. [PMID: 33505987 PMCID: PMC7831291 DOI: 10.3389/fmolb.2020.597634] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/30/2020] [Indexed: 12/12/2022] Open
Abstract
Therapeutic, diagnostic, and imaging approaches based on nanotechnology offer distinct advantages in cancer treatment. Various nanotherapeutics have been presented as potential alternatives to traditional anticancer therapies such as chemotherapy, radiotherapy, and surgical intervention. Notably, the advantage of nanotherapeutics is mainly attributable to their accumulation and targeting ability toward cancer cells, multiple drug-carrying abilities, combined therapies, and imaging approaches. To date, numerous nanoparticle formulations have been developed for anticancer therapy and among them, metallic nanotherapeutics reportedly demonstrate promising cancer therapeutic and diagnostic efficiencies owing to their dense surface functionalization ability, uniform size distribution, and shape-dependent optical responses, easy and cost-effective synthesis procedure, and multiple anti-cancer effects. Metallic nanotherapeutics can remodel the tumor microenvironment by changing unfavorable therapeutic conditions into therapeutically accessible ones with the help of different stimuli, including light, heat, ultrasound, an alternative magnetic field, redox, and reactive oxygen species. The combination of metallic nanotherapeutics with both external and internal stimuli can be used to trigger the on-demand release of therapeutic molecules, augmenting the therapeutic efficacies of anticancer therapies such as photothermal therapy, photodynamic therapy, magnetic hyperthermia, sonodynamic therapy, chemodynamic therapy, and immunotherapy. In this review, we have summarized the role of different metallic nanotherapeutics in anti-cancer therapy, as well as their combinational effects with multiple stimuli for enhanced anticancer therapy.
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Affiliation(s)
- Adityanarayan Mohapatra
- Department of Biomedical Sciences, Chonnam National University Medical School, Jeollanam-do, South Korea
| | - Saji Uthaman
- Department of Polymer Science and Engineering, Chungnam National University, Daejeon, South Korea
| | - In-Kyu Park
- Department of Biomedical Sciences, Chonnam National University Medical School, Jeollanam-do, South Korea
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143
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Ortega-Valdovinos LR, Valdes-García J, Bazany-Rodríguez IJ, Lugo-González JC, Dorazco-González A, Yatsimirsky AK. Anion recognition by anthracene appended ortho-aminomethylphenylboronic acid: a new PET-based sensing mechanism. NEW J CHEM 2021. [DOI: 10.1039/d1nj02684d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carboxylate, phosphate and sulphate anions form hydrogen bonded complexes with the B(OH)2 group of the receptor 1 producing a turn-off fluorescence response, while the malonate monoanion induces the opposite turn-on effect.
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Affiliation(s)
| | - Josue Valdes-García
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria México, 04510, CDMX, Mexico
| | - Iván J. Bazany-Rodríguez
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria México, 04510, CDMX, Mexico
| | | | - Alejandro Dorazco-González
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria México, 04510, CDMX, Mexico
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144
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Sasi S, Krishna CA, Sugunan SK, Chandran A, Nair PR, Subramanian KRV, Mathew S. Low cost, high efficiency flexible supercapacitor electrodes made from areca nut husk nanocellulose and silver nanoparticle embedded polyaniline. RSC Adv 2021; 11:29564-29575. [PMID: 35479563 PMCID: PMC9040598 DOI: 10.1039/d1ra04920h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 08/11/2021] [Indexed: 12/04/2022] Open
Abstract
Energy storage is a key aspect in the smooth functioning of the numerous gadgets that aid easy maneuvering through modern life. Supercapacitors that store energy faradaically have recently emerged as potential inventions for which mechanical flexibility is an absolute requirement for their future applications. Flexible supercapacitors based on nanocellulose extracted from easily available waste materials via low cost methods have recently garnered great attention. In the present work, we discuss the construction of flexible, binder-free supercapacitive electrodes using nanocellulose extracted from locally available areca nut husks and polyaniline embedded with silver nanoparticles. The prepared electrodes were characterized using SEM, TEM, XRD, FTIR, EDX and electrochemical characterization techniques such as CV, galvanostatic charge–discharge, chronoamperometry and EIS. A specific capacitance of 780 F g−1 was obtained for the silver nanoparticle embedded polyaniline–nanocellulose (Ag–PANI–NC) substrate supported electrodes, which is ∼4.2 times greater than that of bare polyaniline–nanocellulose electrodes. We attributed this enhancement to a lowering of the activation energy barrier of correlated electron hopping among localized defect states in the composite matrix by the Ag nanoparticles. An energy density value of 15.64 W h kg−1 and a power density of 244.8 W kg−1 were obtained for the prepared electrodes. It was observed that the Ag–PANI–NC based electrode can retain ∼98% of its specific capacitance upon recovery from mechanical bending to extreme degrees. Energy storage is a key aspect in the smooth functioning of the numerous gadgets that aid easy maneuvering through modern life. Utilization of waste materials for energy storage applications enables the sustainable development of energy field.![]()
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Affiliation(s)
- Soorya Sasi
- Advanced Molecular Materials Research Centre, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India
| | - C. Ardra Krishna
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686 560, Kerala, India
| | - Sunish K. Sugunan
- Department of Chemistry, Kottayam CMS College (Autonomous) – affiliated to Mahatma Gandhi University, Kottayam, 686 001, Kerala, India
| | - Akash Chandran
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686 560, Kerala, India
| | - P. Radhakrishnan Nair
- Advanced Molecular Materials Research Centre, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India
| | - K. R. V. Subramanian
- Dept. of Mechanical Engineering, Ramaiah Institute of Technology, Bangalore, 560 054, India
| | - Suresh Mathew
- Advanced Molecular Materials Research Centre, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686 560, Kerala, India
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145
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Kaur J, Sarma AK, Jha MK, Gera P. Rib shaped carbon catalyst derived from Zea mays L. cob for ketalization of glycerol. RSC Adv 2020; 10:43334-43342. [PMID: 35519680 PMCID: PMC9058247 DOI: 10.1039/d0ra08203a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/24/2020] [Indexed: 12/23/2022] Open
Abstract
In the present work, the activated carbon was prepared from agricultural waste by an activation method using sodium hydroxide as an activating agent. The prepared AC-CC has been characterized by N2 adsorption–desorption isotherms, thermogravimetric analysis (TGA-DTA), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and temperature-programmed desorption (TPD). The porous carbon was thus obtained with a specific surface area of 13.901 m2 g−1 and a total pore volume of 0.011 cm3 g−1. The catalytic activity of the activated carbon has been studied for the ketalization of glycerol and provides maximum glycerol conversion of 72.12% under optimum conditions. The activity of the AC-CC also did not change appreciably for three consecutive batch reaction sequences. The spent catalyst was further analysed for elemental composition using XPS and surface morphology was studied using SEM. There was little deformation in the structure although the percentage of carbon remains almost same (∼72%) as that of the original catalyst, which contributes to the reduction of conversion efficiency of glycerol to solketal by 5% in the 3rd consecutive reaction. Thus, AC-CC obtained from Zea mays L. cob could be a very promising renewable catalyst for glycerol conversion into solketal as a fuel-additive. In the present work, the activated carbon was derived from corncob via NaOH activation for solketal production.![]()
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Affiliation(s)
- Jaspreet Kaur
- Department of Chemical Engineering, Dr B R Ambedkar NIT Jalandhar Punjab India
| | - Anil Kumar Sarma
- Sardar Swaran Singh National Institute of Bio Energy Kapurthala Punjab India +911822507414
| | - Mithilesh Kumar Jha
- Department of Chemical Engineering, Dr B R Ambedkar NIT Jalandhar Punjab India
| | - Poonam Gera
- Sardar Swaran Singh National Institute of Bio Energy Kapurthala Punjab India +911822507414
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146
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Akbal Vural O, Yaman YT, Bolat G, Abaci S. Human Serum Albumin−Gold Nanoparticle Based Impedimetric Sensor for Sensitive Detection of miRNA‐200c. ELECTROANAL 2020. [DOI: 10.1002/elan.202060342] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Oznur Akbal Vural
- Advanced Technologies Application and Research Center Hacettepe University Ankara Turkey
| | - Yesim Tugce Yaman
- Advanced Technologies Application and Research Center Hacettepe University Ankara Turkey
- Analytical Chemistry Division, Department of Chemistry Hacettepe University Ankara Turkey
| | - Gulcin Bolat
- Analytical Chemistry Division, Department of Chemistry Hacettepe University Ankara Turkey
| | - Serdar Abaci
- Advanced Technologies Application and Research Center Hacettepe University Ankara Turkey
- Analytical Chemistry Division, Department of Chemistry Hacettepe University Ankara Turkey
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147
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Craig M, Jenner AL, Namgung B, Lee LP, Goldman A. Engineering in Medicine To Address the Challenge of Cancer Drug Resistance: From Micro- and Nanotechnologies to Computational and Mathematical Modeling. Chem Rev 2020; 121:3352-3389. [PMID: 33152247 DOI: 10.1021/acs.chemrev.0c00356] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Drug resistance has profoundly limited the success of cancer treatment, driving relapse, metastasis, and mortality. Nearly all anticancer drugs and even novel immunotherapies, which recalibrate the immune system for tumor recognition and destruction, have succumbed to resistance development. Engineers have emerged across mechanical, physical, chemical, mathematical, and biological disciplines to address the challenge of drug resistance using a combination of interdisciplinary tools and skill sets. This review explores the developing, complex, and under-recognized role of engineering in medicine to address the multitude of challenges in cancer drug resistance. Looking through the "lens" of intrinsic, extrinsic, and drug-induced resistance (also referred to as "tolerance"), we will discuss three specific areas where active innovation is driving novel treatment paradigms: (1) nanotechnology, which has revolutionized drug delivery in desmoplastic tissues, harnessing physiochemical characteristics to destroy tumors through photothermal therapy and rationally designed nanostructures to circumvent cancer immunotherapy failures, (2) bioengineered tumor models, which have benefitted from microfluidics and mechanical engineering, creating a paradigm shift in physiologically relevant environments to predict clinical refractoriness and enabling platforms for screening drug combinations to thwart resistance at the individual patient level, and (3) computational and mathematical modeling, which blends in silico simulations with molecular and evolutionary principles to map mutational patterns and model interactions between cells that promote resistance. On the basis that engineering in medicine has resulted in discoveries in resistance biology and successfully translated to clinical strategies that improve outcomes, we suggest the proliferation of multidisciplinary science that embraces engineering.
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Affiliation(s)
- Morgan Craig
- Department of Mathematics and Statistics, University of Montreal, Montreal, Quebec H3C 3J7, Canada.,Sainte-Justine University Hospital Research Centre, Montreal, Quebec H3S 2G4, Canada
| | - Adrianne L Jenner
- Department of Mathematics and Statistics, University of Montreal, Montreal, Quebec H3C 3J7, Canada.,Sainte-Justine University Hospital Research Centre, Montreal, Quebec H3S 2G4, Canada
| | - Bumseok Namgung
- Division of Engineering in Medicine, Brigham and Women's Hospital, Boston, Massachusetts 02115, United States.,Department of Medicine, Harvard Medical School, Boston, Massachusetts 02139, United States
| | - Luke P Lee
- Division of Engineering in Medicine, Brigham and Women's Hospital, Boston, Massachusetts 02115, United States.,Department of Medicine, Harvard Medical School, Boston, Massachusetts 02139, United States
| | - Aaron Goldman
- Division of Engineering in Medicine, Brigham and Women's Hospital, Boston, Massachusetts 02115, United States.,Department of Medicine, Harvard Medical School, Boston, Massachusetts 02139, United States
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148
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Li Y, Shen J, Quan W, Diao Y, Wu M, Zhang B, Wang Y, Yang D. 2D/2D p‐n Heterojunctions of CaSb
2
O
6
/g‐C
3
N
4
for Visible Light‐Driven Photocatalytic Degradation of Tetracycline. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000635] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Yuanyuan Li
- Department of Biological and Chemical Engineering Cooperative Innovation Center of Lipid Resources and Children's Daily Chemicals Chongqing University of Education 400067 Chongqing People's Republic of China
| | - Jinfeng Shen
- Department of Biological and Chemical Engineering Cooperative Innovation Center of Lipid Resources and Children's Daily Chemicals Chongqing University of Education 400067 Chongqing People's Republic of China
| | - Wenxuan Quan
- Department of Biological and Chemical Engineering Cooperative Innovation Center of Lipid Resources and Children's Daily Chemicals Chongqing University of Education 400067 Chongqing People's Republic of China
| | - Yue Diao
- Department of Biological and Chemical Engineering Cooperative Innovation Center of Lipid Resources and Children's Daily Chemicals Chongqing University of Education 400067 Chongqing People's Republic of China
| | - Meijun Wu
- Department of Biological and Chemical Engineering Cooperative Innovation Center of Lipid Resources and Children's Daily Chemicals Chongqing University of Education 400067 Chongqing People's Republic of China
| | - Bin Zhang
- Analytical and Testing Center Chongqing University 401331 Chongqing People's Republic of China
| | - Yaoqiong Wang
- College of Chemistry and Chemical Engineering Chongqing University of Technology 69 Hongguang Rd. 400054 Lijiatuo, Banan District Chongqing People's Republic of China
| | - Dingfeng Yang
- College of Chemistry and Chemical Engineering Chongqing University of Technology 69 Hongguang Rd. 400054 Lijiatuo, Banan District Chongqing People's Republic of China
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149
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Paul MB, Stock V, Cara-Carmona J, Lisicki E, Shopova S, Fessard V, Braeuning A, Sieg H, Böhmert L. Micro- and nanoplastics - current state of knowledge with the focus on oral uptake and toxicity. NANOSCALE ADVANCES 2020; 2:4350-4367. [PMID: 36132901 PMCID: PMC9417819 DOI: 10.1039/d0na00539h] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 08/20/2020] [Indexed: 05/18/2023]
Abstract
The production and use of plastics has constantly increased over the last 30 years. Over one third of the plastics is used in disposables, which are discarded within three years of their production. Despite efforts towards recycling, a substantial volume of debris has accumulated in the environment and is slowly degraded to micro- and nanoplastics by weathering and aging. It has recently been discovered that these small particles can enter the food chain, as for example demonstrated by the detection of microplastic particles in honey, beer, salt, sea food and recently in mineral water. Human exposure has further been documented by the detection of plastic microparticles in human feces. Potential toxic consequences of oral exposure to small plastic particles are discussed. Due to lacking data concerning exposure, biodistribution and related effects, the risk assessment of micro- and nanoplastics is still not possible. This review focuses on the oral uptake of plastic and polymer micro- and nanoparticles. Oral exposure, particle fate, changes of particle properties during ingestion and gastrointestinal digestion, and uptake and transport at the intestinal epithelium are reviewed in detail. Moreover, the interaction with intestinal and liver cells and possibly resulting toxicity are highlighted.
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Affiliation(s)
- Maxi B Paul
- German Federal Institute for Risk Assessment Max-Dohrn-Str. 8-10 10589 Berlin Germany +49 30 18412-3718
| | - Valerie Stock
- German Federal Institute for Risk Assessment Max-Dohrn-Str. 8-10 10589 Berlin Germany +49 30 18412-3718
| | - Julia Cara-Carmona
- German Federal Institute for Risk Assessment Max-Dohrn-Str. 8-10 10589 Berlin Germany +49 30 18412-3718
| | - Elisa Lisicki
- German Federal Institute for Risk Assessment Max-Dohrn-Str. 8-10 10589 Berlin Germany +49 30 18412-3718
| | - Sofiya Shopova
- German Federal Institute for Risk Assessment Max-Dohrn-Str. 8-10 10589 Berlin Germany +49 30 18412-3718
| | - Valérie Fessard
- ANSES, French Agency for Food, Environmental and Occupational Health and Safety 10B rue Claude Bourgelat 35306 Fougères France
| | - Albert Braeuning
- German Federal Institute for Risk Assessment Max-Dohrn-Str. 8-10 10589 Berlin Germany +49 30 18412-3718
| | - Holger Sieg
- German Federal Institute for Risk Assessment Max-Dohrn-Str. 8-10 10589 Berlin Germany +49 30 18412-3718
| | - Linda Böhmert
- German Federal Institute for Risk Assessment Max-Dohrn-Str. 8-10 10589 Berlin Germany +49 30 18412-3718
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150
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Shang T, Yu X, Han S, Yang B. Nanomedicine-based tumor photothermal therapy synergized immunotherapy. Biomater Sci 2020; 8:5241-5259. [PMID: 32996922 DOI: 10.1039/d0bm01158d] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The emerging anti-tumor immunotherapy has made significant progress in clinical application. However, single immunotherapy is not effective for all anti-tumor treatments, owing to the low objective response rate and the risk of immune-related side effects. Meanwhile, photothermal therapy (PTT) has attracted significant attention because of its non-invasiveness, spatiotemporal controllability and small side effects. Combining PTT with immunotherapy overcomes the issue that single photothermal therapy cannot eradicate tumors with metastasis and recurrence. However, it improves the therapeutic effect of immunotherapy, as the photothermal therapy usually promotes release of tumor-related antigens, triggers immune response by the immunogenic cell death (ICD), thereby, endowing unique synergistic mechanisms for cancer therapy. This review summarizes recent research advances in utilizing nanomedicines for PTT in combination with immunotherapy to improve the outcome of cancer treatment. The strategies include immunogenic cell death, immune agonists and cancer vaccines, immune checkpoint blockades and tumor specific monoclonal antibodies, and small-molecule immune inhibitors. The combination of synergized PTT-immunotherapy with other therapeutic strategies is also discussed.
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Affiliation(s)
- Tongyi Shang
- The Sixth Affiliated Hospital, Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, P. R. China.
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