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  1. Article ; Online: Effect of Platelet-Rich Plasma Dosing for Healing after Arthroscopic Cuff Repair Compared with Surgery Alone: A Systematic Review and Meta-Analysis.

    Nunes, Bernardo / Martins, Ricardo / Linhares, Daniela / Azevedo, Luís / Canadas, Raphäel / Gutierres, Manuel

    Medicine and science in sports and exercise

    2024  Volume 56, Issue 5, Page(s) 796–804

    Abstract: Introduction: Platelet-rich plasma (PRP) has been used for arthroscopic rotator cuff repairs (aRCR), but no studies have addressed the impact of platelet concentration. The primary aim was to evaluate whether the PRP cell concentration has an effect on ... ...

    Abstract Introduction: Platelet-rich plasma (PRP) has been used for arthroscopic rotator cuff repairs (aRCR), but no studies have addressed the impact of platelet concentration. The primary aim was to evaluate whether the PRP cell concentration has an effect on tendon healing after aRCR compared with surgery alone. The secondary aim was to assess the functional and pain outcomes.
    Materials and methods: A systematic review was performed with searches in the MEDLINE (PubMed), Scopus, Web of Science, and Cochrane (Central) databases according to Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines. Metanalytic procedures were performed for randomized controlled trials (RCTs), and a subgroup analysis was used for studies with target (approximately 10 6 cells·μL -1 ) or below-target PRP cellular concentrations (app. 5 × 10 5 cells·μL -1 ) regarding the primary outcome of tendon healing.
    Results: This review included 10 studies (8 RCTs) with 342 patients in the aRCR + PRP group and 344 patients with isolated aRCR. The risk of bias was low to intermediate (6/4, respectively). Meta-analysis of the RCT revealed that the aRCR + high-concentration PRP group had an approximately 3.9-fold higher chance of healing than the non-PRP group (odds ratio, 3.89; 95% confidence interval, 1.78-8.44; P = 0.0007). No significant difference in healing was found between the aRCR + low-concentration PRP and non-PRP groups (odds ratio, 2.21; 95% confidence interval, 0.66-7.45; P = 0.2). The Constant-Murley score and University of California Los Angeles scores were significantly improved in the aRCR + PRP groups with more than 12 months of follow-up, and no significant differences were found consistently for the American Shoulder and Elbow Society and visual analog scale scores.
    Conclusions: This study highlights that a PRP cell concentration close to the target (10 6 cells·μL -1 ) of patients with aRCR may improve their healing and functional outcomes and that dosing may be potentially useful in therapy.
    MeSH term(s) Humans ; Rotator Cuff Injuries/surgery ; Rotator Cuff/surgery ; Treatment Outcome ; Wound Healing ; Platelet-Rich Plasma ; Arthroscopy/methods
    Language English
    Publishing date 2024-03-14
    Publishing country United States
    Document type Meta-Analysis ; Systematic Review ; Journal Article
    ZDB-ID 603994-7
    ISSN 1530-0315 ; 0195-9131 ; 0025-7990
    ISSN (online) 1530-0315
    ISSN 0195-9131 ; 0025-7990
    DOI 10.1249/MSS.0000000000003361
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: An introduction to network analysis for studies of medication use.

    Askar, Mohsen / Cañadas, Raphael Nozal / Svendsen, Kristian

    Research in social & administrative pharmacy : RSAP

    2021  Volume 17, Issue 12, Page(s) 2054–2061

    Abstract: Background: Network Analysis (NA) is a method that has been used in various disciplines such as Social sciences and Ecology for decades. So far, NA has not been used extensively in studies of medication use. Only a handful of papers have used NA in Drug ...

    Abstract Background: Network Analysis (NA) is a method that has been used in various disciplines such as Social sciences and Ecology for decades. So far, NA has not been used extensively in studies of medication use. Only a handful of papers have used NA in Drug Prescription Networks (DPN). We provide an introduction to NA terminology alongside a guide to creating and extracting results from the medication networks.
    Objective: To introduce the readers to NA as a tool to study medication use by demonstrating how to apply different NA measures on 3 generated medication networks.
    Methods: We used the Norwegian Prescription Database (NorPD) to create a network that describes the co-medication in elderly persons in Norway on January 1, 2013. We used the Norwegian Electronic Prescription Support System (FEST) to create another network of severe drug-drug interactions (DDIs). Lastly, we created a network combining the two networks to show the actual use of drugs with severe DDIs. We used these networks to elucidate how to apply and interpret different network measures in medication networks.
    Results: Interactive network graphs are made available online, Stata and R syntaxes are provided. Various useful network measures for medication networks were applied such as network topological features, modularity analysis and centrality measures. Edge lists data used to generate the networks are openly available for readers in an open data repository to explore and use.
    Conclusion: We believe that NA can be a useful tool in medication use studies. We have provided information and hopefully inspiration for other researchers to use NA in their own projects. While network analyses are useful for exploring and discovering structures in medication use studies, it also has limitations. It can be challenging to interpret and it is not suitable for hypothesis testing.
    MeSH term(s) Aged ; Databases, Factual ; Drug Interactions ; Drug Prescriptions ; Electronic Prescribing ; Humans ; Social Networking
    Language English
    Publishing date 2021-06-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2192059-X
    ISSN 1934-8150 ; 1551-7411
    ISSN (online) 1934-8150
    ISSN 1551-7411
    DOI 10.1016/j.sapharm.2021.06.021
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Dynamic Culture Systems and 3D Interfaces Models for Cancer Drugs Testing.

    Fernandes, Diogo C / Canadas, Raphaël F / Reis, Rui L / Oliveira, Joaquim M

    Advances in experimental medicine and biology

    2020  Volume 1230, Page(s) 137–159

    Abstract: The mass use of biological agents for pharmaceutical purposes started with the development and distribution of vaccines, followed by the industrial production of antibiotics. The use of dynamic systems, such as bioreactors, had been already applied in ... ...

    Abstract The mass use of biological agents for pharmaceutical purposes started with the development and distribution of vaccines, followed by the industrial production of antibiotics. The use of dynamic systems, such as bioreactors, had been already applied in the food industry in fermentation processes and started being used for the development of pharmaceutical agents from this point on. In the last decades, the use of bioreactors and microfluidic systems has been expanded in different fields. The emergence of the tissue engineering led to the development of in vitro models cultured in dynamic systems. This is particularly relevant considering the urgent reduction of the total dependence on animal disease models that is undermining the development of novel drugs, using alternatively human-based models to make the drug discovery process more reliable. The failure out coming from animal models has been more prevalent in certain types of cancer, such as glioblastoma multiform and in high-grade metastatic cancers like bone metastasis of breast or prostatic cancer. The difficulty in obtaining novel drugs for these purposes is mostly linked to the barriers around the tumors, which these bioactive molecules have to overcome to become effective. For that reason, the individualized study of each interface is paramount and is only realistic once applying human-based samples (e.g. cells or tissues) in three-dimensions for in vitro modeling under dynamic conditions. In this chapter, the most recent approaches to model these interfaces in 3D systems will be explored, highlighting their major contributions to the field. In this section, these systems' impact on increased knowledge in relevant aspects of cancer aggressiveness as invasive or motile cellular capacity, or even resistance to chemotherapeutic agents will have particular focus. The last section of this chapter will focus on the integration of the tumor interfaces in dynamic systems, particularly its application on high-throughput drug screening. The industrial translation of such platforms will be discussed, as well as the main upcoming challenges and future perspectives.
    MeSH term(s) Animals ; Antineoplastic Agents/pharmacology ; Bioreactors ; Cell Culture Techniques/methods ; Drug Screening Assays, Antitumor/methods ; Humans ; Microfluidics ; Models, Biological ; Neoplasms/drug therapy ; Neoplasms/pathology ; Tissue Engineering
    Chemical Substances Antineoplastic Agents
    Language English
    Publishing date 2020-04-13
    Publishing country United States
    Document type Journal Article ; Review
    ISSN 2214-8019 ; 0065-2598
    ISSN (online) 2214-8019
    ISSN 0065-2598
    DOI 10.1007/978-3-030-36588-2_9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Vancomycin-Loaded, Nanohydroxyapatite-Based Scaffold for Osteomyelitis Treatment: In Vivo Rabbit Toxicological Tests and In Vivo Efficacy Tests in a Sheep Model.

    Alegrete, Nuno / Sousa, Susana R / Padrão, Tatiana / Carvalho, Ângela / Lucas, Raquel / Canadas, Raphael F / Lavrador, Catarina / Alexandre, Nuno / Gärtner, Fátima / Monteiro, Fernando J / Gutierres, Manuel

    Bioengineering (Basel, Switzerland)

    2023  Volume 10, Issue 2

    Abstract: The treatment for osteomyelitis consists of surgical debridement, filling of the dead space, soft tissue coverage, and intravenous administration of antimicrobial (AM) agents for long periods. Biomaterials for local delivery of AM agents, while providing ...

    Abstract The treatment for osteomyelitis consists of surgical debridement, filling of the dead space, soft tissue coverage, and intravenous administration of antimicrobial (AM) agents for long periods. Biomaterials for local delivery of AM agents, while providing controllable antibiotic release rates and simultaneously acting as a bone scaffold, may be a valuable alternative; thus, avoiding systemic AM side effects. V-HEPHAPC is a heparinized nanohydroxyapatite (nHA)/collagen biocomposite loaded with vancomycin that has been previously studied and tested in vitro. It enables a vancomycin-releasing profile with an intense initial burst, followed by a sustained release with concentrations above the Minimum Inhibitory Concentration (MIC) for MRSA. In vitro results have also shown that cellular viability is not compromised, suggesting that V-HEPHAPC granules may be a promising alternative device for the treatment of osteomyelitis. In the present study, V-HEPHAPC (HEPHAPC with vancomycin) granules were used as a vancomycin carrier to treat MRSA osteomyelitis. First, in vivo Good Laboratory Practice (GLP) toxicological tests were performed in a rabbit model, assuring that HEPHAPC and V-HEPHAPC have no relevant side effects. Second, V-HEPHAPC proved to be an efficient drug carrier and bone substitute to control MRSA infection and simultaneously reconstruct the bone cavity in a sheep model.
    Language English
    Publishing date 2023-02-04
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2746191-9
    ISSN 2306-5354
    ISSN 2306-5354
    DOI 10.3390/bioengineering10020206
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Bioreactors and Microfluidics for Osteochondral Interface Maturation.

    Canadas, Raphaël F / Marques, Alexandra P / Reis, Rui L / Oliveira, J Miguel

    Advances in experimental medicine and biology

    2018  Volume 1059, Page(s) 395–420

    Abstract: The cell culture techniques are in the base of any biology-based science. The standard techniques are commonly static platforms as Petri dishes, tissue culture well plates, T-flasks, or well plates designed for spheroids formation. These systems faced a ... ...

    Abstract The cell culture techniques are in the base of any biology-based science. The standard techniques are commonly static platforms as Petri dishes, tissue culture well plates, T-flasks, or well plates designed for spheroids formation. These systems faced a paradigm change from 2D to 3D over the current decade driven by the tissue engineering (TE) field. However, 3D static culture approaches usually suffer from several issues as poor homogenization of the formed tissues and development of a necrotic center which limits the size of in vitro tissues to hundreds of micrometers. Furthermore, for complex tissues as osteochondral (OC), more than recovering a 3D environment, an interface needs to be replicated. Although 3D cell culture is already the reality adopted by a newborn market, a technological revolution on cell culture devices needs a further step from static to dynamic already considering 3D interfaces with dramatic importance for broad fields such as biomedical, TE, and drug development. In this book chapter, we revised the existing approaches for dynamic 3D cell culture, focusing on bioreactors and microfluidic systems, and the future directions and challenges to be faced were discussed. Basic principles, advantages, and challenges of each technology were described. The reported systems for OC 3D TE were focused herein.
    MeSH term(s) Animals ; Biological Transport ; Bioreactors ; Bone and Bones/cytology ; Cell Communication ; Cell Culture Techniques/instrumentation ; Cell Culture Techniques/methods ; Cells, Cultured ; Chondrocytes/cytology ; Chondrogenesis/physiology ; Equipment Design ; Forecasting ; Humans ; Implants, Experimental ; Lab-On-A-Chip Devices ; Microfluidics/methods ; Osteogenesis/physiology ; Rheology ; Tissue Engineering/methods
    Language English
    Publishing date 2018-05-07
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ISSN 2214-8019 ; 0065-2598
    ISSN (online) 2214-8019
    ISSN 0065-2598
    DOI 10.1007/978-3-319-76735-2_18
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Bioengineered Nanoparticles Loaded-Hydrogels to Target TNF Alpha in Inflammatory Diseases.

    Oliveira, Isabel Matos / Fernandes, Diogo Castro / Maia, Fátima Raquel / Canadas, Raphael Faustino / Reis, Rui Luís / Oliveira, Joaquim Miguel

    Pharmaceutics

    2021  Volume 13, Issue 8

    Abstract: Rheumatoid Arthritis (RA) is an incurable autoimmune disease that promotes the chronic impairment of patients' mobility. For this reason, it is vital to develop therapies that target early inflammatory symptoms and act before permanent articular damage. ... ...

    Abstract Rheumatoid Arthritis (RA) is an incurable autoimmune disease that promotes the chronic impairment of patients' mobility. For this reason, it is vital to develop therapies that target early inflammatory symptoms and act before permanent articular damage. The present study offers two novel therapies based in advanced drug delivery systems for RA treatment: encapsulated chondroitin sulfate modified poly(amidoamine) dendrimer nanoparticles (NPs) covalently bonded to monoclonal anti-TNF α antibody in both Tyramine-Gellan Gum and Tyramine-Gellan Gum/Silk Fibroin hydrogels. Using pro-inflammatory THP-1 (i.e., human monocytic cell line), the therapy was tested in an inflammation in vitro model under both static and dynamic conditions. Firstly, we demonstrated effective NP-antibody functionalization and TNF-α capture. Upon encapsulation, the NPs were released steadily over 21 days. Moreover, in static conditions, the approaches presented good anti-inflammatory activity over time, enabling the retainment of a high percentage of TNF α. To mimic the physiological conditions of the human body, the hydrogels were evaluated in a dual-chamber bioreactor. Dynamic in vitro studies showed absent cytotoxicity in THP-1 cells and a significant reduction of TNF-α in suspension over 14 days for both hydrogels. Thus, the developed approach showed potential for use as personalized medicine to obtain better therapeutic outcomes and decreased adverse effects.
    Language English
    Publishing date 2021-07-21
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527217-2
    ISSN 1999-4923
    ISSN 1999-4923
    DOI 10.3390/pharmaceutics13081111
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: 3DICE coding matrix multidirectional macro-architecture modulates cell organization, shape, and co-cultures endothelization network.

    Canadas, Raphaël F / Costa, João B / Mao, Zhengwei / Gao, Changyou / Demirci, Utkan / Reis, Rui L / Marques, Alexandra P / Oliveira, Joaquim M

    Biomaterials

    2021  Volume 277, Page(s) 121112

    Abstract: Natural extracellular matrix governs cells providing biomechanical and biofunctional outstanding properties, despite being porous and mostly made of soft materials. Among organs, specific tissues present specialized macro-architectures. For instance, ... ...

    Abstract Natural extracellular matrix governs cells providing biomechanical and biofunctional outstanding properties, despite being porous and mostly made of soft materials. Among organs, specific tissues present specialized macro-architectures. For instance, hepatic lobules present radial organization, while vascular sinusoids are branched from vertical veins, providing specific biofunctional features. Therefore, it is imperative to mimic such structures while modeling tissues. So far, there is limited capability of coupling oriented macro-structures with interconnected micro-channels in programmable long-range vertical and radial sequential orientations. Herein, a three-directional ice crystal elongation (3DICE) system is presented to code geometries in cryogels. Using 3DICE, guided ice crystals growth templates vertical and radial pores through bulky cryogels. Translucent isotropic and anisotropic architectures of radial or vertical pores are fabricated with tunable mechanical response. Furthermore, 3D combinations of vertical and radial pore orientations are coded at the centimeter scale. Cell morphological response to macro-architectures is demonstrated. The formation of endothelial segments, CYP450 activity, and osteopontin expression, as liver fibrosis biomarkers, present direct response and specific cellular organization within radial, linear, and random architectures. These results unlock the potential of ice-templating demonstrating the relevance of macro-architectures to model tissues, and broad possibilities for drug testing, tissue engineering, and regenerative medicine.
    MeSH term(s) Coculture Techniques ; Cryogels ; Porosity ; Regenerative Medicine ; Tissue Engineering ; Tissue Scaffolds
    Chemical Substances Cryogels
    Language English
    Publishing date 2021-08-31
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 603079-8
    ISSN 1878-5905 ; 0142-9612
    ISSN (online) 1878-5905
    ISSN 0142-9612
    DOI 10.1016/j.biomaterials.2021.121112
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: 3DICE coding matrix multidirectional macro-architecture modulates cell organization, shape, and co-cultures endothelization network

    Canadas, Raphaël F. / Costa, João B. / Mao, Zhengwei / Gao, Changyou / Demirci, Utkan / Reis, Rui L. / Marques, Alexandra P. / Oliveira, Joaquim M.

    Biomaterials. 2021 Oct., v. 277

    2021  

    Abstract: Natural extracellular matrix governs cells providing biomechanical and biofunctional outstanding properties, despite being porous and mostly made of soft materials. Among organs, specific tissues present specialized macro-architectures. For instance, ... ...

    Abstract Natural extracellular matrix governs cells providing biomechanical and biofunctional outstanding properties, despite being porous and mostly made of soft materials. Among organs, specific tissues present specialized macro-architectures. For instance, hepatic lobules present radial organization, while vascular sinusoids are branched from vertical veins, providing specific biofunctional features. Therefore, it is imperative to mimic such structures while modeling tissues. So far, there is limited capability of coupling oriented macro-structures with interconnected micro-channels in programmable long-range vertical and radial sequential orientations. Herein, a three-directional ice crystal elongation (3DICE) system is presented to code geometries in cryogels. Using 3DICE, guided ice crystals growth templates vertical and radial pores through bulky cryogels. Translucent isotropic and anisotropic architectures of radial or vertical pores are fabricated with tunable mechanical response. Furthermore, 3D combinations of vertical and radial pore orientations are coded at the centimeter scale. Cell morphological response to macro-architectures is demonstrated. The formation of endothelial segments, CYP450 activity, and osteopontin expression, as liver fibrosis biomarkers, present direct response and specific cellular organization within radial, linear, and random architectures. These results unlock the potential of ice-templating demonstrating the relevance of macro-architectures to model tissues, and broad possibilities for drug testing, tissue engineering, and regenerative medicine.
    Keywords anisotropy ; biocompatible materials ; biomarkers ; biomechanics ; coculture ; cryogels ; drugs ; extracellular matrix ; ice ; isotropy ; liver cirrhosis ; medicine ; osteopontin
    Language English
    Dates of publication 2021-10
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 603079-8
    ISSN 0142-9612
    ISSN 0142-9612
    DOI 10.1016/j.biomaterials.2021.121112
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Numerical and experimental simulation of a dynamic-rotational 3D cell culture for stratified living tissue models.

    Canadas, Raphaël F / Liu, Ziyu / Gasperini, Luca / Fernandes, Diogo C / Maia, Fátima R / Reis, Rui L / Marques, Alexandra P / Liu, Chaozong / Oliveira, Joaquim M

    Biofabrication

    2022  Volume 14, Issue 2

    Abstract: Human tissues and organs are inherently heterogeneous, and their functionality is determined by the interplay between different cell types, their secondary architecture, and gradients of signalling molecules and metabolites. To mimic the dynamics of ... ...

    Abstract Human tissues and organs are inherently heterogeneous, and their functionality is determined by the interplay between different cell types, their secondary architecture, and gradients of signalling molecules and metabolites. To mimic the dynamics of native tissues, perfusion bioreactors and microfluidic devices are widely used in tissue engineering (TE) applications for enhancing cell culture viability in the core of 3D constructs. Still, most
    MeSH term(s) Bioreactors ; Cell Culture Techniques, Three Dimensional ; Computer Simulation ; Humans ; Perfusion ; Tissue Engineering/methods
    Language English
    Publishing date 2022-03-16
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2500944-8
    ISSN 1758-5090 ; 1758-5082
    ISSN (online) 1758-5090
    ISSN 1758-5082
    DOI 10.1088/1758-5090/ac55a2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Ionic Liquid-Mediated Processing of SAIB-Chitin Scaffolds

    Gonçalves, Cristiana / Silva, Simone S / Gomes, Joana M / Oliveira, Isabel M / Canadas, Raphaël F / Maia, F. Raquel / Radhouani, Hajer / Reis, Rui L / Oliveira, Joaquim M

    ACS sustainable chemistry & engineering. 2020 Feb. 14, v. 8, no. 9

    2020  

    Abstract: This study proposes a green and innovative ionic liquid (IL) methodology for processing sucrose acetate isobutyrate (SAIB) porous structures for tissue engineering. The solubilization of SAIB in an IL, namely, 1-butyl-imidazolium acetate, was achieved, ... ...

    Abstract This study proposes a green and innovative ionic liquid (IL) methodology for processing sucrose acetate isobutyrate (SAIB) porous structures for tissue engineering. The solubilization of SAIB in an IL, namely, 1-butyl-imidazolium acetate, was achieved, for the first time, allowing the development of SAIB-based scaffolds. In the early stages of the process development, it was needed to add chitin in the scaffold’s compositions to provide a steady structure. Physicochemical, mechanical, and biological techniques evaluated the characteristics of the produced scaffolds. The Fourier transform infrared spectroscopy results confirmed the presence of chitin and SAIB, as well as the influence of the applied solvent for the IL removal. The X-ray diffraction analysis shows that the presence of SAIB contributes to a decrease in the crystallinity of the scaffolds. Moreover, the morphology of the structures varied upon the preparation conditions used, demonstrating that it is possible to obtain scaffolds with different values of porosity (ranging from 52 to 85%). No cytotoxicity was found when culturing in vitro human adipose-derived stem cells onto the surface of the produced scaffolds during 72 h. This study showed that processing SAIB-based scaffolds is feasible using ILs and that these structures exhibit promising features for tissue engineering scaffolding applications.
    Keywords Fourier transform infrared spectroscopy ; X-ray diffraction ; acetates ; chitin ; crystal structure ; cytotoxicity ; humans ; ionic liquids ; porosity ; solubilization ; stem cells ; sucrose ; tissue engineering
    Language English
    Dates of publication 2020-0214
    Size p. 3986-3994.
    Publishing place American Chemical Society
    Document type Article
    ISSN 2168-0485
    DOI 10.1021/acssuschemeng.0c00385
    Database NAL-Catalogue (AGRICOLA)

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