201
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Roppolo I, Frascella F, Gastaldi M, Castellino M, Ciubini B, Barolo C, Scaltrito L, Nicosia C, Zanetti M, Chiappone A. Thiol–yne chemistry for 3D printing: exploiting an off-stoichiometric route for selective functionalization of 3D objects. Polym Chem 2019. [DOI: 10.1039/c9py00962k] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An alkyne monomer, bis(propargyl) fumarate, is synthesized and mixed to a thiol monomer to produce DLP-3D printable formulations. Using off-stoichiometric formulations it is possible to print functionalizable objects.
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Affiliation(s)
- Ignazio Roppolo
- Department of Applied Science and Technology DISAT
- Politecnico di Torino
- Torino
- Italy
| | - Francesca Frascella
- Department of Applied Science and Technology DISAT
- Politecnico di Torino
- Torino
- Italy
| | - Matteo Gastaldi
- Department of Chemistry and NIS Centre
- University of Turin
- Torino
- Italy
| | - Micaela Castellino
- Department of Applied Science and Technology DISAT
- Politecnico di Torino
- Torino
- Italy
| | - Betty Ciubini
- Department of Applied Science and Technology DISAT
- Politecnico di Torino
- Torino
- Italy
| | - Claudia Barolo
- Department of Chemistry and NIS Centre
- University of Turin
- Torino
- Italy
| | - Luciano Scaltrito
- Department of Applied Science and Technology DISAT
- Politecnico di Torino
- Torino
- Italy
| | - Carmelo Nicosia
- Department of Electronics and Telecommunications DET
- Politecnico di Torino
- Torino
- Italy
| | - Marco Zanetti
- Department of Chemistry and NIS Centre
- University of Turin
- Torino
- Italy
- ICxT Centre
| | - Annalisa Chiappone
- Department of Applied Science and Technology DISAT
- Politecnico di Torino
- Torino
- Italy
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202
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Hung LI, Yi HY, Shih YC, Lin CH, Wang SL. Carboxylic acid-protruding zincophosphate sheets exhibiting surface mechanochemical reactivity and intriguing nano-morphological reversibility. Chem Commun (Camb) 2019; 55:2429-2432. [DOI: 10.1039/c8cc09289c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hybrid zincophosphate with surface-active and interior –COOH exhibits remarkable characteristics of high thermal stability, modifiable wettability and nano-morphological reversibility.
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Affiliation(s)
- Ling-I Hung
- Department of Chemistry
- National Tsing Hua University No. 101
- Section 2, Kuang-Fu Road
- Hsinchu 30013
- Taiwan
| | - Hsiang-Yi Yi
- Department of Chemistry
- National Tsing Hua University No. 101
- Section 2, Kuang-Fu Road
- Hsinchu 30013
- Taiwan
| | - Yu-Chieh Shih
- Department of Chemistry
- National Tsing Hua University No. 101
- Section 2, Kuang-Fu Road
- Hsinchu 30013
- Taiwan
| | - Chia-Her Lin
- Department of Chemistry
- Chung-Yuan Christian University
- Chungli
- Taiwan
| | - Sue-Lein Wang
- Department of Chemistry
- National Tsing Hua University No. 101
- Section 2, Kuang-Fu Road
- Hsinchu 30013
- Taiwan
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203
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Gonçalves MCP, Kieckbusch TG, Perna RF, Fujimoto JT, Morales SAV, Romanelli JP. Trends on enzyme immobilization researches based on bibliometric analysis. Process Biochem 2019. [DOI: 10.1016/j.procbio.2018.09.016] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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204
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Haske-Cornelius O, Weinberger S, Quartinello F, Tallian C, Brunner F, Pellis A, Guebitz GM. Environmentally friendly covalent coupling of proteins onto oxidized cellulosic materials. NEW J CHEM 2019. [DOI: 10.1039/c9nj03077h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cellulose is a biodegradable and renewable material that is one of the most abundant biopolymers with many different applications from low value newsprint products to high value biomedical sensor devices.
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Affiliation(s)
- Oskar Haske-Cornelius
- Institute of Environmental Biotechnology
- University of Natural Resources and Life Sciences Vienna
- 3430 Tulln an der Donau
- Austria
| | - Simone Weinberger
- Institute of Environmental Biotechnology
- University of Natural Resources and Life Sciences Vienna
- 3430 Tulln an der Donau
- Austria
| | - Felice Quartinello
- Institute of Environmental Biotechnology
- University of Natural Resources and Life Sciences Vienna
- 3430 Tulln an der Donau
- Austria
| | - Claudia Tallian
- Institute of Environmental Biotechnology
- University of Natural Resources and Life Sciences Vienna
- 3430 Tulln an der Donau
- Austria
| | - Florian Brunner
- Institute of Environmental Biotechnology
- University of Natural Resources and Life Sciences Vienna
- 3430 Tulln an der Donau
- Austria
| | - Alessandro Pellis
- Institute of Environmental Biotechnology
- University of Natural Resources and Life Sciences Vienna
- 3430 Tulln an der Donau
- Austria
- Green Chemistry Centre of Excellence
| | - Georg M. Guebitz
- Institute of Environmental Biotechnology
- University of Natural Resources and Life Sciences Vienna
- 3430 Tulln an der Donau
- Austria
- Austrian Centre of Industrial Biotechnology
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205
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Combellas C, Kanoufi F, Pinson J, Podvorica FI. Indirect electrografting of aryl iodides. Electrochem commun 2019. [DOI: 10.1016/j.elecom.2018.12.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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206
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Soler M, Huertas CS, Lechuga LM. Label-free plasmonic biosensors for point-of-care diagnostics: a review. Expert Rev Mol Diagn 2018; 19:71-81. [PMID: 30513011 DOI: 10.1080/14737159.2019.1554435] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Introduction: Optical biosensors, particularly those based on nanoplasmonics technology, have emerged in recent decades as a potential solution for disease diagnostics and therapy follow-up at the point-of-care (POC). These biosensor platforms could overcome some of the challenges faced in conventional diagnosis techniques offering label-free assays with immediate results and employing small and user-friendly devices. Areas covered: In this review, we will provide a critical overview of the recent advances in the development of nanoplasmonic biosensors for the POC diagnostics. We focus on those systems with demonstrated capabilities for integration in portable platforms, highlighting some of the most relevant diagnostics applications targeting proteins, nucleic acids, and cells as disease biomarkers. Expert commentary: Despite the attractive features of label-free nanoplasmonic sensors in terms of miniaturization and analytical robustness, the route toward an effective clinical implementation involves the integration of fully automated microfluidic systems for sample processing and analysis, and the optimization of surface biofunctionalization procedures. Additionally, the development of multiplexed sensors for high-throughput analysis and including specific neoantigens and novel biomarkers in detection panels will provide the means for delivering a powerful analytical technology for an accurate and improved medical diagnosis.
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Affiliation(s)
- Maria Soler
- a Nanobiosensors and Bioanalytical Applications Group , Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, BIST and CIBER-BBN , Bellaterra , Barcelona , Spain
| | - Cesar S Huertas
- a Nanobiosensors and Bioanalytical Applications Group , Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, BIST and CIBER-BBN , Bellaterra , Barcelona , Spain.,b School of Engineering , RMIT University , Melbourne , Australia
| | - Laura M Lechuga
- a Nanobiosensors and Bioanalytical Applications Group , Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, BIST and CIBER-BBN , Bellaterra , Barcelona , Spain
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207
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Chng S, Moloney MG, Wu LYL. Photochromic Materials by Postpolymerisation Surface Modification. ACS OMEGA 2018; 3:15554-15565. [PMID: 31458211 PMCID: PMC6644173 DOI: 10.1021/acsomega.8b02521] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 10/29/2018] [Indexed: 06/09/2023]
Abstract
Photochromic materials are available by a postpolymerization surface modification of diverse polymers in a multistep sequential process mediated, first, by carbene insertion chemistry, second, by diazonium coupling with a tethered precursor, and finally by coupling to a spiropyran. This three-step sequence is efficient, and surface loading densities of 1013 molecules cm-2 are typically achievable, leading to materials with observable photochromic and wettability behavior, which operate over multiple cycles without significant photobleaching or loss of efficacy. Materials suitable for application in this process include both reactive, but also lower surface energy polymers. Although the process is particularly efficient for high surface area materials, surface modification onto lower surface area substrates, while being intrinsically less efficient, is nonetheless sufficiently effective that changes in macroscopic photochromic properties are readily observable.
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Affiliation(s)
- Shuyun Chng
- Department
of Chemistry, Chemistry Research Laboratory, The University of Oxford, 12-Mansfield Road, Oxford OX1 3TA, United Kingdom
- Singapore
Institute of Manufacturing Technology, 2 Fusionopolis Way, #08-04, Innovis, Singapore 138634
| | - Mark G. Moloney
- Department
of Chemistry, Chemistry Research Laboratory, The University of Oxford, 12-Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Linda Y. L. Wu
- Singapore
Institute of Manufacturing Technology, 2 Fusionopolis Way, #08-04, Innovis, Singapore 138634
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208
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Patelli A, Mussano F, Brun P, Genova T, Ambrosi E, Michieli N, Mattei G, Scopece P, Moroni L. Nanoroughness, Surface Chemistry, and Drug Delivery Control by Atmospheric Plasma Jet on Implantable Devices. ACS APPLIED MATERIALS & INTERFACES 2018; 10:39512-39523. [PMID: 30359523 DOI: 10.1021/acsami.8b15886] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Implantable devices need specific tailored surface morphologies and chemistries to interact with the living systems or to actively induce a biological response also by the release of drugs or proteins. These customized requirements foster technologies that can be implemented in additive manufacturing systems. Here, we present a novel approach based on spraying processes that allow to control separately topographic features in the submicron range (∼60 nm to 2 μm), ammine or carboxylic chemistry, and fluorophore release even on temperature-sensitive biodegradable polymers such as polycaprolactone (PCL). We developed a two-steps process with a first deposition of 220 nm silica and poly(lactic- co-glycolide) (PLGA) fluorescent nanoparticles by aerosol followed by the deposition of a fixing layer by an atmospheric pressure plasma jet (APPJ). The nanoparticles can be used to create the nanoroughness and to include active molecule release, while the capping layer ensures stability and the chemical functionalities. The process is enabled by a novel APPJ which allows deposition rates of 10-20 nm·s-1 at temperatures lower than 50 °C using argon as the process gas. This approach was assessed on titanium alloys for dental implants and on PCL films. The surfaces were characterized by Fourier transform infrared, atomic force microscopy, and scanning electron microscopy (SEM). Titanium alloys were tested with the preosteoblast murine cells line, while the PCL film was tested with fibroblasts. Cell behavior was evaluated by viability and adhesion assays, protein adsorption, cell proliferation, focal adhesion formation, and SEM. The release of a fluorophore molecule was assessed in the cell growing media, simulating a drug release. Osteoblast adhesion on the plasma-treated materials increased by 20% with respect to commercial titanium alloy implants. Fibroblast adhesion increased by a 100% compared to smooth PCL substrates. The release of the fluorophore by the dissolution of the PLGA nanoparticles was verified, and the integrity of the encapsulated drug model was confirmed.
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Affiliation(s)
- Alessandro Patelli
- Department Physics and Astronomy , Padova University , via Marzolo 8 , 35131 Padova , Italy
| | - Federico Mussano
- CIR Dental School, Department Surgical Sciences , Torino University , 10126 Torino , Italy
| | - Paola Brun
- Department Molecular Medicine, Unit of Microbiology , Padova University , 35121 Padova , Italy
| | - Tullio Genova
- CIR Dental School, Department Surgical Sciences , Torino University , 10126 Torino , Italy
- Department Life Sciences and Systems Biology , Torino University , 10124 Torino , Italy
| | - Emmanuele Ambrosi
- Department Molecular Sciences and Nanosystems , Venezia University , 30172 Venezia , Italy
| | - Niccoló Michieli
- Department Physics and Astronomy , Padova University , via Marzolo 8 , 35131 Padova , Italy
| | - Giovanni Mattei
- Department Physics and Astronomy , Padova University , via Marzolo 8 , 35131 Padova , Italy
| | | | - Lorenzo Moroni
- MERLN-Institute for Technology-Inspired Regenerative Medicine , Maastricht University , 6229 ER Maastricht , The Netherlands
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209
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Scherag FD, Mader A, Zinggeler M, Birsner N, Kneusel RE, Brandstetter T, Rühe J. Blocking-Free and Substrate-Independent Serological Microarray Immunoassays. Biomacromolecules 2018; 19:4641-4649. [DOI: 10.1021/acs.biomac.8b01334] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Frank D. Scherag
- Laboratory for Chemistry and Physics of Interfaces, Department of Microsystems Engineering (IMTEK), University of Freiburg, Georges-Köhler-Allee 103, 79110 Freiburg, Germany
| | - Andreas Mader
- Scienion AG, Volmerstrasse 7b, 12489 Berlin, Germany
| | - Marc Zinggeler
- Laboratory for Chemistry and Physics of Interfaces, Department of Microsystems Engineering (IMTEK), University of Freiburg, Georges-Köhler-Allee 103, 79110 Freiburg, Germany
| | - Nicole Birsner
- Laboratory for Chemistry and Physics of Interfaces, Department of Microsystems Engineering (IMTEK), University of Freiburg, Georges-Köhler-Allee 103, 79110 Freiburg, Germany
| | | | - Thomas Brandstetter
- Laboratory for Chemistry and Physics of Interfaces, Department of Microsystems Engineering (IMTEK), University of Freiburg, Georges-Köhler-Allee 103, 79110 Freiburg, Germany
| | - Jürgen Rühe
- Laboratory for Chemistry and Physics of Interfaces, Department of Microsystems Engineering (IMTEK), University of Freiburg, Georges-Köhler-Allee 103, 79110 Freiburg, Germany
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210
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Kasparek E, Tavares JR, Wertheimer MR, Girard-Lauriault PL. VUV Photodeposition of Thiol-Terminated Films: A Wavelength-Dependent Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:12234-12243. [PMID: 30205010 DOI: 10.1021/acs.langmuir.8b01691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Photoinitiated chemical vapor deposition (PICVD) has become attractive for selective and specific surface functionalization, because it relies on a single energy source, the photons, to carry out (photo-) chemistry. In the present wavelength (λ)-dependent study, thiol (SH)-terminated thin film deposits have been prepared from gas mixtures of acetylene (C2H2) and hydrogen sulfide (H2S) via PICVD using four different vacuum-ultraviolet (VUV) sources, namely, KrL (λpeak = 123.6 nm), XeL (λpeak = 147.0 nm), XeE (λpeak = 172.0 nm), and Hg (λ = 184.9 nm) lamps. Different λ influence the deposition kinetics and film composition, reflecting that photolytic reactions are governed by the gases' absorption coefficients, k(λ). Thiol concentrations, [SH], up to ∼7.7%, were obtained with the XeL source, the highest reported in the literature so far. Furthermore, all films showed islandlike surface morphology, regardless of λ.
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Affiliation(s)
- Evelyne Kasparek
- Plasma Processing Laboratory, Department of Chemical Engineering , McGill University , Montreal , Quebec H3A 2B2 , Canada
| | | | | | - Pierre-Luc Girard-Lauriault
- Plasma Processing Laboratory, Department of Chemical Engineering , McGill University , Montreal , Quebec H3A 2B2 , Canada
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211
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Recent and prominent examples of nano- and microarchitectures as hemoglobin-based oxygen carriers. Adv Colloid Interface Sci 2018; 260:65-84. [PMID: 30177214 DOI: 10.1016/j.cis.2018.08.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 08/21/2018] [Accepted: 08/22/2018] [Indexed: 12/16/2022]
Abstract
Blood transfusions, which usually consist in the administration of isolated red blood cells (RBCs), are crucial in traumatic injuries, pre-surgical conditions and anemias. Although RBCs transfusion from donors is a safe procedure, donor RBCs can only be stored for a maximum of 42 days under refrigerated conditions and, therefore, stockpiles of RBCs for use in acute disasters do not exist. With a worldwide shortage of donor blood that is expected to increase over time, the creation of oxygen-carriers with long storage life and compatibility without typing and cross-matching, persists as one of the foremost important challenges in biomedicine. However, research has so far failed to produce FDA approved RBCs substitutes (RBCSs) for human usage. As such, due to unacceptable toxicities, the first generation of oxygen-carriers has been withdrawn from the market. Being hemoglobin (Hb) the main component of RBCs, a lot of effort is being devoted in assembling semi-synthetic RBCS utilizing Hb as the oxygen-carrier component, the so-called Hb-based oxygen carriers (HBOCs). However, a native RBC also contains a multi-enzyme system to prevent the conversion of Hb into non-functional methemoglobin (metHb). Thus, the challenge for the fabrication of next-generation HBOCs relies in creating a system that takes advantage of the excellent oxygen-carrying capabilities of Hb, while preserving the redox environment of native RBCs that prevents or reverts the conversion of Hb into metHb. In this review, we feature the most recent advances in the assembly of the new generation of HBOCs with emphasis in two main approaches: the chemical modification of Hb either by cross-linking strategies or by conjugation to other polymers, and the Hb encapsulation strategies, usually in the form of lipidic or polymeric capsules. The applications of the aforementioned HBOCs as blood substitutes or for oxygen-delivery in tissue engineering are highlighted, followed by a discussion of successes, challenges and future trends in this field.
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212
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Hsu YI, Yamaoka T. Visualization and quantification of the bioactive molecules immobilized at the outmost surface of PLLA-based biomaterials. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2018.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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213
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Monnier A, Al Tawil E, Nguyen QT, Valleton JM, Fatyeyeva K, Deschrevel B. Functionalization of poly(lactic acid) scaffold surface by aminolysis and hyaluronan immobilization: How it affects mesenchymal stem cell proliferation. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.08.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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214
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Vasile C. Polymeric Nanocomposites and Nanocoatings for Food Packaging: A Review. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E1834. [PMID: 30261658 PMCID: PMC6213312 DOI: 10.3390/ma11101834] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 09/10/2018] [Accepted: 09/22/2018] [Indexed: 01/20/2023]
Abstract
Special properties of the polymeric nanomaterials (nanoscale size, large surface area to mass ratio and high reactivity individualize them in food packaging materials. They can be processed in precisely engineered materials with multifunctional and bioactive activity. This review offers a general view on polymeric nanocomposites and nanocoatings including classification, preparation methods, properties and short methodology of characterization, applications, selected types of them used in food packaging field and their antimicrobial, antioxidant, biological, biocatalyst and so forth, functions.
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Affiliation(s)
- Cornelia Vasile
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry (PPIMC), Romanian Academy, 41A Gr. Ghica Alley, RO 700487 Iasi, Romania.
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215
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Kim HY, Jung SY, Lee SJ, Lee HJ, Truong MD, Kim HS. Fabrication and characterization of 3D-printed elastic auricular scaffolds: A pilot study. Laryngoscope 2018; 129:351-357. [PMID: 30229920 DOI: 10.1002/lary.27344] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 05/21/2018] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Aesthetic reconstruction of the external ear is challenging due to the complex anatomical shape of the auricle. Recently, artificial scaffolds such as Medpor (Stryker, Kalamasoo, MI, USA) have become widely used in ear reconstruction. However, the Medpor scaffold is stiffer than the natural ear, which may lead to discomfort, and moreover has uniform design for every patient. In this study, we investigated whether three-dimensional (3D)-printed artificial polyurethane (PU) scaffolds are suitable for auricular reconstruction. METHODS PU scaffolds were fabricated using 3D printing according to a design derived from a digital imaging and communications in medicine (DICOM) image of the human auricle. The microstructure of the scaffolds was observed using scanning electron microscopy, and the porosity was examined. Cell proliferation on the scaffolds was assessed in vitro using tonsil-derived mesenchymal stem cells to evaluate the biocompatibility of the scaffolds. The scaffolds were implanted in C57BL/6 mice, and histological analysis was performed. RESULTS The structural study revealed that the 3D-printed porous PU scaffolds have rectangular microstructure with regular pitch and line, as well as high porosity (56.46% ± 10.22%) with a pore diameter of 200 µm. The mechanical properties of the 3D-printed PU scaffolds were similar to those of the human auricle cartilage. Cell proliferation on the PU scaffolds was greater than that on Medpor scaffolds. Histological evaluation demonstrated that the porous parts of the PU scaffolds became filled with collagen and vascular tissue. CONCLUSION Elastic, porous PU scaffolds can be obtained using 3D printing, have biomechanical properties similar to those of the natural ear, and are suitable for use in auricular reconstruction. LEVEL OF EVIDENCE NA Laryngoscope, 129:351-357, 2019.
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Affiliation(s)
- Ha Yeong Kim
- Department of Molecular Medicine, Ewha Womans University, Seoul
| | - Soo Yeon Jung
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Ewha Womans University, Seoul
| | - Sang Jin Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, U.S.A
| | - Hyun Jung Lee
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul
| | - Minh-Dung Truong
- the Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Han Su Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Ewha Womans University, Seoul
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216
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Bos I, Merlitz H, Rosenthal A, Uhlmann P, Sommer JU. Design of binary polymer brushes with tuneable functionality. SOFT MATTER 2018; 14:7237-7245. [PMID: 30132780 DOI: 10.1039/c8sm01108g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Using coarse grained molecular dynamics simulations, we study how functionalized binary brushes may be used to create surfaces whose functionality can be tuned. Our model brushes consist of a mixture of nonresponsive polymers with functionalized responsive polymers. The functional groups switch from an exposed to a hidden state when the conformations of the responsive polymers change from extended to collapsed. We investigate quantitatively which sets of brush parameters result in optimal switching in functionality, by analyzing to which extent the brush conformation allows an external object to interact with the functional groups. It is demonstrated that brushes with species of comparable polymer lengths, or with longer responsive polymers than nonresponsive polymers, can show significant differences in their functionality. In the latter case, either the fraction of responsive polymers or the total grafting density has to be reduced. Among these possibilities, a reduction of the fraction of responsive polymers is shown to be most effective.
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Affiliation(s)
- Inge Bos
- Physical Chemistry and Soft Matter, Wageningen University & Research, 6708 WE Wageningen, The Netherlands
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217
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Ramon-Marquez T, Medina-Castillo AL, Fernandez-Gutierrez A, Fernandez-Sanchez JF. Evaluation of two sterically directed attachments of biomolecules on a coaxial nanofibre membrane to improve the development of optical biosensors. Talanta 2018; 187:83-90. [DOI: 10.1016/j.talanta.2018.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 04/25/2018] [Accepted: 05/01/2018] [Indexed: 02/08/2023]
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218
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Elena P, Miri K. Formation of contact active antimicrobial surfaces by covalent grafting of quaternary ammonium compounds. Colloids Surf B Biointerfaces 2018; 169:195-205. [DOI: 10.1016/j.colsurfb.2018.04.065] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 04/24/2018] [Accepted: 04/29/2018] [Indexed: 12/13/2022]
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219
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Ermis M, Antmen E, Hasirci V. Micro and Nanofabrication methods to control cell-substrate interactions and cell behavior: A review from the tissue engineering perspective. Bioact Mater 2018; 3:355-369. [PMID: 29988483 PMCID: PMC6026330 DOI: 10.1016/j.bioactmat.2018.05.005] [Citation(s) in RCA: 161] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 05/09/2018] [Accepted: 05/10/2018] [Indexed: 02/07/2023] Open
Abstract
Cell-substrate interactions play a crucial role in the design of better biomaterials and integration of implants with the tissues. Adhesion is the binding process of the cells to the substrate through interactions between the surface molecules of the cell membrane and the substrate. There are several factors that affect cell adhesion including substrate surface chemistry, topography, and stiffness. These factors physically and chemically guide and influence the adhesion strength, spreading, shape and fate of the cell. Recently, technological advances enabled us to precisely engineer the geometry and chemistry of substrate surfaces enabling the control of the interaction cells with the substrate. Some of the most commonly used surface engineering methods for eliciting the desired cellular responses on biomaterials are photolithography, electron beam lithography, microcontact printing, and microfluidics. These methods allow production of nano- and micron level substrate features that can control cell adhesion, migration, differentiation, shape of the cells and the nuclei as well as measurement of the forces involved in such activities. This review aims to summarize the current techniques and associate these techniques with cellular responses in order to emphasize the effect of chemistry, dimensions, density and design of surface patterns on cell-substrate interactions. We conclude with future projections in the field of cell-substrate interactions in the hope of providing an outlook for the future studies.
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Affiliation(s)
- Menekse Ermis
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara, Turkey
- METU, Department of Biomedical Engineering, Ankara, Turkey
| | - Ezgi Antmen
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara, Turkey
- METU, Department of Biotechnology, Ankara, Turkey
| | - Vasif Hasirci
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara, Turkey
- METU, Department of Biomedical Engineering, Ankara, Turkey
- METU, Department of Biotechnology, Ankara, Turkey
- METU, Department of Biological Sciences, Ankara, Turkey
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220
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Dang M, Saunders L, Niu X, Fan Y, Ma PX. Biomimetic delivery of signals for bone tissue engineering. Bone Res 2018; 6:25. [PMID: 30181921 PMCID: PMC6115422 DOI: 10.1038/s41413-018-0025-8] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 05/22/2018] [Accepted: 06/15/2018] [Indexed: 02/06/2023] Open
Abstract
Bone tissue engineering is an exciting approach to directly repair bone defects or engineer bone tissue for transplantation. Biomaterials play a pivotal role in providing a template and extracellular environment to support regenerative cells and promote tissue regeneration. A variety of signaling cues have been identified to regulate cellular activity, tissue development, and the healing process. Numerous studies and trials have shown the promise of tissue engineering, but successful translations of bone tissue engineering research into clinical applications have been limited, due in part to a lack of optimal delivery systems for these signals. Biomedical engineers are therefore highly motivated to develop biomimetic drug delivery systems, which benefit from mimicking signaling molecule release or presentation by the native extracellular matrix during development or the natural healing process. Engineered biomimetic drug delivery systems aim to provide control over the location, timing, and release kinetics of the signal molecules according to the drug's physiochemical properties and specific biological mechanisms. This article reviews biomimetic strategies in signaling delivery for bone tissue engineering, with a focus on delivery systems rather than specific molecules. Both fundamental considerations and specific design strategies are discussed with examples of recent research progress, demonstrating the significance and potential of biomimetic delivery systems for bone tissue engineering.
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Affiliation(s)
- Ming Dang
- Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI USA
| | - Laura Saunders
- Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI USA
| | - Xufeng Niu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Peter X. Ma
- Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI USA
- Department of Biologic and Materials Sciences, University of Michigan, Ann Arbor, MI USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI USA
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI USA
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221
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Wang Y, Chen Y, Wang C, Sun J, Zhao Z, Liu W. Polyethylenimine-Modified Membranes for CO 2 Capture and in Situ Hydrogenation. ACS APPLIED MATERIALS & INTERFACES 2018; 10:29003-29009. [PMID: 30059610 DOI: 10.1021/acsami.8b08636] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Enzymatic CO2 reduction can provide value-added chemicals from greenhouse gases at ambient temperature and pressure. However, poor solubility of CO2 results in a low conversion rate. In this work, polyethylenimine (PEI) was attached onto the surface of poly(acrylic acid)-grafted (PAA-grafted) polyethylene membranes, and then, the membranes were used in an integrated process of CO2 capture and in situ hydrogenation. Modification conditions were optimized with a surface amino group density of PEI-modified membranes as the characteristic parameter, and then, SEM, FTIR, and XPS analyses were conducted. The effect of PEI-modified membranes on enzyme-catalyzed CO2 conversion to formic acid, regeneration conditions, and reusability were studied. The results show that when the grafting ratio of PAA increased, surface amino group density of PEI-modified membranes increased up to 6.00 × 10-7 mol/cm2 and then kept constant. The optimum modification time, temperature, and PEI concentration were 40 min, 40 °C, and 0.3 wt %. With the same concentration, PEI-1800 could bring more amino groups than PEI-600. SEM, FTIR, and XPS results further confirmed PEI attachment. Introduction of membrane-supported PEI with 5.86 × 10-6 mol of amino groups facilitated greatly enzymatic CO2 hydrogenation, and the initial reaction rate increased from 0.280 to 6.90 μM/min. After being regenerated in ammonia, PEI-modified membranes could be reused, and the relative reaction rate was, respectively, 88.0% and 65.7% after 5 and 10 cycles.
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Affiliation(s)
- Yanzi Wang
- School of Chemistry and Chemical Engineering , Beijing Institute of Technology , Beijing 102488 , China
| | - Yongzhen Chen
- School of Chemistry and Chemical Engineering , Beijing Institute of Technology , Beijing 102488 , China
| | - Caihong Wang
- School of Chemistry and Chemical Engineering , Beijing Institute of Technology , Beijing 102488 , China
| | - Jing Sun
- School of Chemistry and Chemical Engineering , Beijing Institute of Technology , Beijing 102488 , China
| | - Zhiping Zhao
- School of Chemistry and Chemical Engineering , Beijing Institute of Technology , Beijing 102488 , China
| | - Wenfang Liu
- School of Chemistry and Chemical Engineering , Beijing Institute of Technology , Beijing 102488 , China
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222
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Parisi L, Toffoli A, Ghiacci G, Macaluso GM. Tailoring the Interface of Biomaterials to Design Effective Scaffolds. J Funct Biomater 2018; 9:E50. [PMID: 30134538 PMCID: PMC6165026 DOI: 10.3390/jfb9030050] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 08/17/2018] [Accepted: 08/17/2018] [Indexed: 12/21/2022] Open
Abstract
Tissue engineering (TE) is a multidisciplinary science, which including principles from material science, biology and medicine aims to develop biological substitutes to restore damaged tissues and organs. A major challenge in TE is the choice of suitable biomaterial to fabricate a scaffold that mimics native extracellular matrix guiding resident stem cells to regenerate the functional tissue. Ideally, the biomaterial should be tailored in order that the final scaffold would be (i) biodegradable to be gradually replaced by regenerating new tissue, (ii) mechanically similar to the tissue to regenerate, (iii) porous to allow cell growth as nutrient, oxygen and waste transport and (iv) bioactive to promote cell adhesion and differentiation. With this perspective, this review discusses the options and challenges facing biomaterial selection when a scaffold has to be designed. We highlight the possibilities in the final mold the materials should assume and the most effective techniques for its fabrication depending on the target tissue, including the alternatives to ameliorate its bioactivity. Furthermore, particular attention has been given to the influence that all these aspects have on resident cells considering the frontiers of materiobiology. In addition, a focus on chitosan as a versatile biomaterial for TE scaffold fabrication has been done, highlighting its latest advances in the literature on bone, skin, cartilage and cornea TE.
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Affiliation(s)
- Ludovica Parisi
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Andrea Toffoli
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Giulia Ghiacci
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Guido M Macaluso
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
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223
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Tripathi A, Melo JS. Self-assembled biogenic melanin modulated surface chemistry of biopolymers-colloidal silica composite porous matrix for the recovery of uranium. J Appl Polym Sci 2018. [DOI: 10.1002/app.46937] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- A. Tripathi
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre; Mumbai 400085 India
| | - J. S. Melo
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre; Mumbai 400085 India
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224
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Grant DS, Siegele R, Bazaka K, Jacob MV. Formation of nanocrystalline and amorphous carbon by high fluence swift heavy ion irradiation of a plasma polymerized polyterpenol thin film precursor. J Appl Polym Sci 2018. [DOI: 10.1002/app.46498] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Daniel S. Grant
- College of Science and EngineeringJames Cook UniversityTownsville Queensland 4811 Australia
| | - Rainer Siegele
- Institute for Environmental Research, Australian Nuclear Science and Technology OrganisationLucas Heights New South Wales 2234 Australia
| | - Kateryna Bazaka
- College of Science and EngineeringJames Cook UniversityTownsville Queensland 4811 Australia
- School of Chemistry, Physics, and Mechanical EngineeringQueensland University of TechnologyBrisbane Queensland 4000 Australia
| | - Mohan V. Jacob
- College of Science and EngineeringJames Cook UniversityTownsville Queensland 4811 Australia
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225
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Santos JC, Sousa RC, Otoni CG, Moraes AR, Souza VG, Medeiros EA, Espitia PJ, Pires AC, Coimbra JS, Soares NF. Nisin and other antimicrobial peptides: Production, mechanisms of action, and application in active food packaging. INNOV FOOD SCI EMERG 2018. [DOI: 10.1016/j.ifset.2018.06.008] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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226
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Amokrane G, Falentin-Daudré C, Ramtani S, Migonney V. A Simple Method to Functionalize PCL Surface by Grafting Bioactive Polymers Using UV Irradiation. Ing Rech Biomed 2018. [DOI: 10.1016/j.irbm.2018.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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227
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Roushangar Zineh B, Shabgard MR, Roshangar L. Mechanical and biological performance of printed alginate/methylcellulose/halloysite nanotube/polyvinylidene fluoride bio-scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:779-789. [PMID: 30184807 DOI: 10.1016/j.msec.2018.07.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 12/27/2017] [Accepted: 07/12/2018] [Indexed: 01/15/2023]
Abstract
Use of artificial cartilage due to its poor regenerative characteristics is a challenging issue in the field of tissue engineering. In this regard, three-dimensional printing (3D) technique because of its perfect structural control is one of the best methods for producing biological scaffolds. Proper biomaterials for cartilage repairs with good mechanical and biological properties and the high ability for 3D printing are limited. In this paper, a novel biomaterial consisting of Alginate (AL), Methylcellulose (MC), Halloysite Nanotube (HNT), and Polyvinylidene Fluoride (PVDF) was printed and characterized for cartilage scaffold applications. Calcium chloride (CaCl2) was used as a crosslinker for biomaterial after printing. Scanning Electron Microscopy (SEM), Energy-Dispersive X-Ray Spectroscopy (EDX), X-Ray Diffraction (XRD), Fourier-Transform Infrared Spectroscopy (FT-IR), Differential Scanning Calorimetry (DSC), tensile and compressive tests, chondrocytes seeding, cells staining, and MTT assay were carried out in the present work. The results show that in constant concentrations of AL, MC, and PVDF (40 mg/ml AL, 30 mg/ml MC, and 1% PVDF) when concentration of HNT increased from 20 mg/ml (S2) to 40 mg/ml (S14) tensile strength increased from 164 up to 381 kPa and compressive stress increased from 426 up to 648 kPa. According to spectroscopy and calorimetry results, Biomaterial shows an amorphous structure with good miscibility and a high percentage of water in its structure. PVDF reduces mechanical properties by 7% while increases cell viability by 8.75%. Histological studies and MTT assay results showed a high improvement in the percentage of living cells at the first 4 days of cell cultivation.
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Affiliation(s)
| | | | - Leila Roshangar
- Stem Cells Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Iran
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228
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Ramon-Marquez T, Medina-Castillo AL, Nagiah N, Fernandez-Gutierrez A, Fernandez-Sanchez JF. A multifunctional material based on co-electrospinning for developing biosensors with optical oxygen transduction. Anal Chim Acta 2018. [DOI: 10.1016/j.aca.2018.02.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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229
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Enhancement of Resistance to Protein Fouling of Poly(ether imide) Membrane by Surface Grafting with PEG under Organic Solvent-free Condition. CHINESE JOURNAL OF POLYMER SCIENCE 2018. [DOI: 10.1007/s10118-018-2144-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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230
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Lee S, Moon BJ, Lee HJ, Bae S, Kim TW, Jung YC, Park JH, Lee SH. Enhancement of Adsorption Performance for Organic Molecules by Combined Effect of Intermolecular Interaction and Morphology in Porous rGO-Incorporated Hydrogels. ACS APPLIED MATERIALS & INTERFACES 2018; 10:17335-17344. [PMID: 29726675 DOI: 10.1021/acsami.7b19102] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this study, we developed reduced graphene oxide (rGO)-incorporated porous agarose (Ar-rGO) composites that were prepared via a "one-pot" sol-gel method involving a mixing and vacuum freeze-drying process. These composites represent an easy-to-use adsorbent for organic contaminant removal. Ar-rGOs can efficiently adsorb organic molecules, especially aromatic organic compounds from wastewater, because of the synergistic effect between the agarose bundles, which function as a water absorption site, and the rGO sheets, which function as active sites for pollutant binding. The pore structures and morphology of the Ar-rGO composites varied according to the added rGO, resulting in effective water infiltration into the composites. The main adsorption mechanism of the aromatic organic compounds onto Ar-rGOs involved π-π interactions with the rGO sheets. The surface interaction was more effective for adsorbing/desorbing the aromatic pollutants than the electrostatic interaction via the O-containing functional groups. In addition, we confirmed that Ar-rGO is highly stable over the entire pH range (1-13) because of the presence of the rGO sheets.
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Affiliation(s)
- Seungmin Lee
- Institute of Advanced Composite Materials , Korea Institute of Science and Technology , Chudong-ro 92 , Bongdong-eup, Wanju-gun , Jeonbuk 55324 , Republic of Korea
- Department of Chemical and Biomolecular Engineering , Yonsei University , 50 Yonsei-ro , Seodaemun-gu, Seoul 03722 , Republic of Korea
| | - Byung Joon Moon
- Institute of Advanced Composite Materials , Korea Institute of Science and Technology , Chudong-ro 92 , Bongdong-eup, Wanju-gun , Jeonbuk 55324 , Republic of Korea
| | - Hyun Jung Lee
- BioNano Health Guard Research Center , 125 Gwahak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Sukang Bae
- Institute of Advanced Composite Materials , Korea Institute of Science and Technology , Chudong-ro 92 , Bongdong-eup, Wanju-gun , Jeonbuk 55324 , Republic of Korea
| | - Tae-Wook Kim
- Institute of Advanced Composite Materials , Korea Institute of Science and Technology , Chudong-ro 92 , Bongdong-eup, Wanju-gun , Jeonbuk 55324 , Republic of Korea
| | - Yong Chae Jung
- Institute of Advanced Composite Materials , Korea Institute of Science and Technology , Chudong-ro 92 , Bongdong-eup, Wanju-gun , Jeonbuk 55324 , Republic of Korea
| | - Jong Hyeok Park
- Department of Chemical and Biomolecular Engineering , Yonsei University , 50 Yonsei-ro , Seodaemun-gu, Seoul 03722 , Republic of Korea
| | - Sang Hyun Lee
- Institute of Advanced Composite Materials , Korea Institute of Science and Technology , Chudong-ro 92 , Bongdong-eup, Wanju-gun , Jeonbuk 55324 , Republic of Korea
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231
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Arbade GK, Jathar S, Tripathi V, Patro TU. Antibacterial, sustained drug release and biocompatibility studies of electrospun poly(
ε
-caprolactone)/chloramphenicol blend nanofiber scaffolds. Biomed Phys Eng Express 2018. [DOI: 10.1088/2057-1976/aac1a4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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232
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Andrea A, Molchanova N, Jenssen H. Antibiofilm Peptides and Peptidomimetics with Focus on Surface Immobilization. Biomolecules 2018; 8:E27. [PMID: 29772735 PMCID: PMC6022873 DOI: 10.3390/biom8020027] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/12/2018] [Accepted: 05/14/2018] [Indexed: 12/17/2022] Open
Abstract
Bacterial biofilms pose a major threat to public health, as they are associated with at least two thirds of all infections. They are highly resilient and render conventional antibiotics inefficient. As a part of the innate immune system, antimicrobial peptides have drawn attention within the last decades, as some of them are able to eradicate biofilms at sub-minimum inhibitory concentration (MIC) levels. However, peptides possess a number of disadvantages, such as susceptibility to proteolytic degradation, pH and/or salinity-dependent activity and loss of activity due to binding to serum proteins. Hence, proteolytically stable peptidomimetics were designed to overcome these drawbacks. This paper summarizes the current peptide and peptidomimetic strategies for combating bacteria-associated biofilm infections, both in respect to soluble and surface-functionalized solutions.
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Affiliation(s)
- Athina Andrea
- Department of Science and Environment, Roskilde University, Universitetsvej 1, 4000 Roskilde, Denmark.
| | - Natalia Molchanova
- Department of Science and Environment, Roskilde University, Universitetsvej 1, 4000 Roskilde, Denmark.
| | - Håvard Jenssen
- Department of Science and Environment, Roskilde University, Universitetsvej 1, 4000 Roskilde, Denmark.
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233
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Pajoumshariati S, Shirali H, Yavari SK, Sheikholeslami SN, Lotfi G, Mashhadi Abbas F, Abbaspourrad A. GBR membrane of novel poly (butylene succinate-co-glycolate) co-polyester co-polymer for periodontal application. Sci Rep 2018; 8:7513. [PMID: 29760507 PMCID: PMC5951950 DOI: 10.1038/s41598-018-25952-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 04/23/2018] [Indexed: 11/30/2022] Open
Abstract
In periodontics, osteoconductive biodegradable guided bone regeneration (GBR) membranes with acceptable physico-mechanical properties are required to fix alveolar bone defects. The objectives of the present study were to produce and characterize a novel co-polyester—poly (butylene succinate-co-glycolate) (PBSGL), and fabricate a PBSGL membrane by electrospinning. We then aimed to evaluate the in vitro effect of the glycolate ratio on the biocompatibility and osteogenic differentiation of mesenchymal stem cells (MSCs), and evaluate in vivo bone regeneration using these membranes in rabbit calvarial defects by histology. Increasing the glycolate ratio of electrospun PBSGL membranes resulted in better cell attachment, greater cell metabolic activity, and enhanced osteogenic potential at both transcriptional and translational levels. Histologic and histomorphometric evaluations revealed further that bone defects covered with fibers of higher glycolate ratios showed more bone formation, with no adverse inflammatory response. These results suggest that novel PBSGL electrospun nanofibers show great promise as GBR membranes for bone regeneration.
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Affiliation(s)
- Seyedramin Pajoumshariati
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, USA
| | - Hadi Shirali
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran
| | | | | | - Ghogha Lotfi
- Dental Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Periodontology, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Alireza Abbaspourrad
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, USA.
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234
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Wang D, Ding W, Zhou K, Guo S, Zhang Q, Haddleton DM. Coating Titania Nanoparticles with Epoxy-Containing Catechol Polymers via Cu(0)-Living Radical Polymerization as Intelligent Enzyme Carriers. Biomacromolecules 2018; 19:2979-2990. [DOI: 10.1021/acs.biomac.8b00544] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Donghao Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Wenyi Ding
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Kaiyue Zhou
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Shutong Guo
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Qiang Zhang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - David M. Haddleton
- Department of Chemistry, University of Warwick, CV4 7AL, Coventry, United Kingdom
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235
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Chattaway C, Belbekhouche S, Du Prez FE, Glinel K, Demoustier-Champagne S. Bifunctionalized Redox-Responsive Layers Prepared from a Thiolactone Copolymer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:5234-5244. [PMID: 29672069 DOI: 10.1021/acs.langmuir.8b00525] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The development of multifunctional surfaces is of general interest for the fabrication of biomedical, catalytic, microfluidic or biosensing devices. Herein, we report on the preparation of copolymer layers immobilized on gold surface and showing both free thiol and amino groups. These layers are produced by aminolysis of a thiolactone-based copolymer in the presence of a diamine, according to a one-step procedure. The free thiol and amino groups present in the modified copolymer layers can be successfully functionalized with respectively thiolated and carboxylic derivatives, in order to produce bifunctionalized surfaces. In addition, we show that the grafted thiolated derivative can be released by cleavage of the disulfide bond under mild reducing conditions. On the other hand, a side cross-linking reaction occurring during the grafting process and resulting in the formation of copolymer aggregates on the metal surface is evidenced. The methodology developed for the preparation of these bifunctionalized redox-responsive layers should be advantageously used to produce bioactive surfaces with drug loading/release properties.
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Affiliation(s)
- Claire Chattaway
- Institute of Condensed Matter and Nanosciences (Bio and Soft Matter) , Université catholique de Louvain , Croix du Sud 1 , Box L7.04.02, B-1348 Louvain-la-Neuve , Belgium
| | - Sabrina Belbekhouche
- Institute of Condensed Matter and Nanosciences (Bio and Soft Matter) , Université catholique de Louvain , Croix du Sud 1 , Box L7.04.02, B-1348 Louvain-la-Neuve , Belgium
| | - Filip E Du Prez
- Polymer Chemistry Research Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry , Ghent University , Krijgslaan 281 S4 , B-9000 Ghent , Belgium
| | - Karine Glinel
- Institute of Condensed Matter and Nanosciences (Bio and Soft Matter) , Université catholique de Louvain , Croix du Sud 1 , Box L7.04.02, B-1348 Louvain-la-Neuve , Belgium
| | - Sophie Demoustier-Champagne
- Institute of Condensed Matter and Nanosciences (Bio and Soft Matter) , Université catholique de Louvain , Croix du Sud 1 , Box L7.04.02, B-1348 Louvain-la-Neuve , Belgium
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236
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Chung YC, Lee DH, Choi JW, Chun BC. Application of recycled polyol and benzimidazole to the enhancement of antifungal activity of polyurethane. J Appl Polym Sci 2018. [DOI: 10.1002/app.46600] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yong-Chan Chung
- Department of Chemistry; The University of Suwon; Hwaseong 18323 Korea
| | - Dong Hyun Lee
- School of Nano Engineering; Inje University; Gimhae 50834 Korea
| | - Jae Won Choi
- School of Nano Engineering; Inje University; Gimhae 50834 Korea
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237
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Semerádtová A, Štofik M, Neděla O, Staněk O, Slepička P, Kolská Z, Malý J. A simple approach for fabrication of optical affinity-based bioanalytical microsystem on polymeric PEN foils. Colloids Surf B Biointerfaces 2018; 165:28-36. [DOI: 10.1016/j.colsurfb.2018.01.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/23/2018] [Accepted: 01/24/2018] [Indexed: 12/20/2022]
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238
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Extraction of the Polyurethane Layer in Textile Composites for Textronics Applications Using Optical Coherence Tomography. Polymers (Basel) 2018; 10:polym10050469. [PMID: 30966503 PMCID: PMC6415394 DOI: 10.3390/polym10050469] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/06/2018] [Accepted: 04/23/2018] [Indexed: 11/16/2022] Open
Abstract
This article presents a new method for the extraction and measurement of the polyurethane layer of Cordura textile composites using optical coherence tomography. The knowledge of coating layer properties in these composites is very important, as it affects mechanical parameters such as stiffness and bending rigidity. Unlike microscopic measurements, which require cross-section samples of the material, the proposed approach is non-invasive. The method is based on detecting the top and bottom boundaries of the polyurethane layer in Optical Coherence Tomography (OCT) images using image processing methods, namely edge enhancement filtering, thresholding and spline smoothing. The cover layer measurement results obtained from a three-dimensional OCT image of the composite fabric are presented as the thickness maps. The average values of the layer thicknesses measured with the OCT method for four types of Cordura showed a high correlation with the results obtained from microscopic measurements (Pearson correlation coefficient r = 0.9844 ), which confirms the accuracy of the OCT method.
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239
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Lepowsky E, Tasoglu S. Emerging Anti-Fouling Methods: Towards Reusability of 3D-Printed Devices for Biomedical Applications. MICROMACHINES 2018; 9:E196. [PMID: 30424129 PMCID: PMC6187557 DOI: 10.3390/mi9040196] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/07/2018] [Accepted: 04/19/2018] [Indexed: 12/21/2022]
Abstract
Microfluidic devices are used in a myriad of biomedical applications such as cancer screening, drug testing, and point-of-care diagnostics. Three-dimensional (3D) printing offers a low-cost, rapid prototyping, efficient fabrication method, as compared to the costly-in terms of time, labor, and resources-traditional fabrication method of soft lithography of poly(dimethylsiloxane) (PDMS). Various 3D printing methods are applicable, including fused deposition modeling, stereolithography, and photopolymer inkjet printing. Additionally, several materials are available that have low-viscosity in their raw form and, after printing and curing, exhibit high material strength, optical transparency, and biocompatibility. These features make 3D-printed microfluidic chips ideal for biomedical applications. However, for developing devices capable of long-term use, fouling-by nonspecific protein absorption and bacterial adhesion due to the intrinsic hydrophobicity of most 3D-printed materials-presents a barrier to reusability. For this reason, there is a growing interest in anti-fouling methods and materials. Traditional and emerging approaches to anti-fouling are presented in regard to their applicability to microfluidic chips, with a particular interest in approaches compatible with 3D-printed chips.
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Affiliation(s)
- Eric Lepowsky
- Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269, USA.
| | - Savas Tasoglu
- Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269, USA.
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA.
- Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA.
- Institute for Collaboration on Health, Intervention, and Policy, University of Connecticut, Storrs, CT 06269, USA.
- The Connecticut Institute for the Brain and Cognitive Sciences, University of Connecticut, Storrs, CT 06269, USA.
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240
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Maskless Surface Modification of Polyurethane Films by an Atmospheric Pressure He/O₂ Plasma Microjet for Gelatin Immobilization. MICROMACHINES 2018; 9:mi9040195. [PMID: 30424128 PMCID: PMC6187667 DOI: 10.3390/mi9040195] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 04/01/2018] [Accepted: 04/17/2018] [Indexed: 01/28/2023]
Abstract
A localized maskless modification method of polyurethane (PU) films through an atmospheric pressure He/O2 plasma microjet (APPμJ) was proposed. The APPμJ system combines an atmospheric pressure plasma jet (APPJ) with a microfabricated silicon micronozzle with dimension of 30 μm, which has advantages of simple structure and low cost. The possibility of APPμJ in functionalizing PU films with hydroxyl (–OH) groups and covalent grafting of gelatin for improving its biocompatibility was demonstrated. The morphologies and chemical compositions of the modified surface were analyzed by scanning electronic microscopy (SEM), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). The fluorescent images show the modified surface can be divided into four areas with different fluorescence intensity from the center to the outside domain. The distribution of the rings could be controlled by plasma process parameters, such as the treatment time and the flow rate of O2. When the treatment time is 4 to 5 min with the oxygen percentage of 0.6%, the PU film can be effectively local functionalized with the diameter of 170 μm. In addition, the modification mechanism of PU films by the APPμJ is investigated. The localized polymer modified by APPμJ has potential applications in the field of tissue engineering.
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241
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Benkocká M, Lupínková S, Matoušek J, Kolářová K, Kolská Z. Antimicrobial and optical properties of PET chemically modified and grafted with borane compounds. RSC Adv 2018; 8:15001-15008. [PMID: 35541325 PMCID: PMC9079994 DOI: 10.1039/c7ra13502e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 04/02/2018] [Indexed: 11/21/2022] Open
Abstract
Polyethylene terephthalate (PET) foils were activated with piranha solution and grafted with selected amino compounds (cysteamine, ethylenediamine or chitosan) and then with borane compounds. Changes in their surface properties after particular modification steps were examined using electrokinetic analysis, X-ray photoelectron spectroscopy (XPS), goniometry and UV-vis spectroscopy. Several tests showed that the presence of some amino compounds and one borane cluster significantly improved the antimicrobial properties of the composites investigated. In particular, they exhibited strong antibacterial activity against Staphylococcus epidermidis but only weak activity against Escherichia coli. The samples modified with amino compounds and subsequently with borane clusters were luminescent under UV lamp irradiation. Therefore, the nanocomposites consisting of (cheap) polymer and (more expensive) borane could be used in luminophore development, medicine or environmental protection. Polyethylene terephthalate foils were activated with piranha solution and grafted with selected amino compounds (cysteamine, ethylenediamine or chitosan) and then with borane compounds. Their antimicrobial and optical properties were then analyzed.![]()
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Affiliation(s)
- Monika Benkocká
- Faculty of Science, J. E. Purkinje University in Usti nad Labem České Mládeže 8 400 96 Usti nad Labem Czech Republic
| | - Simona Lupínková
- Faculty of Science, J. E. Purkinje University in Usti nad Labem České Mládeže 8 400 96 Usti nad Labem Czech Republic
| | - Jindřich Matoušek
- Faculty of Science, J. E. Purkinje University in Usti nad Labem České Mládeže 8 400 96 Usti nad Labem Czech Republic
| | - Kateřina Kolářová
- Institute of Solid State Engineering, University of Chemistry and Technology Prague Technická 5 166 28 Prague 6 Czech Republic
| | - Zdeňka Kolská
- Faculty of Science, J. E. Purkinje University in Usti nad Labem České Mládeže 8 400 96 Usti nad Labem Czech Republic
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242
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Andler R, Altenhoff AL, Mäsing F, Steinbüchel A. In vitro studies on the degradation of poly(cis-1,4-isoprene). Biotechnol Prog 2018; 34:890-899. [PMID: 29603909 DOI: 10.1002/btpr.2631] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/21/2018] [Indexed: 11/06/2022]
Abstract
Cleavage of the backbone of poly(cis-1,4-isoprene) (IR) in solid rubber material was accomplished by the addition of partially purified latex clearing protein (Lcp1VH2 ) using a 200-mL enzyme reactor. Two strategies for the addition of Lcp1VH2 were studied revealing that the daily addition of 50 µg mL-1 of Lcp1VH2 for 5 days was clearly a more efficient regime in comparison to a one-time addition of 250 µg of Lcp1VH2 at the beginning. Soluble oligo(cis-1,4-isoprene) molecules occurred as degradation products and were identified by ESI-MS and GPC. Oxygenase activity of Lcp1VH2 with solid IR particles as substrate was shown for the first time by measuring the oxygen consumption in the reaction medium. A strong decrease of the dissolved oxygen concentration was detected at the end of the assay, which indicates an increase in the number of cleavage reactions. The oligo(cis-1,4-isoprene) molecules comprised 1 to 11 isoprene units and exhibited an average molecular weight (Mn ) of 885 g mol-1 . Isolation of the oligo(cis-1,4-isoprene) molecules was achieved by using silica gel column chromatography. The relative quantification of the isolated products was performed by HPLC-MS after derivatization with 2,4-dinitrophenilhydrazyne yielding a concentration of total degradation products of 1.62 g L-1 . Analysis of the polymer surface in samples incubated for 3 days with Lcp1VH2 via ATR-FTIR indicated the presence of carbonyl groups, which occurred upon the cleavage reaction. This study presents a cell-free bioprocess as an alternative rubber treatment that can be applied for the partial degradation of the polymer. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 34:890-899, 2018.
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Affiliation(s)
- R Andler
- Inst. für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität Münster, Münster, D-48149, Germany.,Facultad de Ciencias Agrarias y Forestales, Universidad Católica del Maule, Talca, Chile
| | - A-L Altenhoff
- Inst. für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität Münster, Münster, D-48149, Germany
| | - F Mäsing
- Inst. für Organische Chemie, Westfälische Wilhelms-Universität Münster, Münster, D-48149, Germany
| | - A Steinbüchel
- Inst. für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität Münster, Münster, D-48149, Germany.,Environmental Sciences Dept., King Abdulaziz University, Jeddah, Saudi Arabia
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243
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3D Plasma Nanotextured ® Polymeric Surfaces for Protein or Antibody Arrays, and Biomolecule and Cell Patterning. Methods Mol Biol 2018. [PMID: 29633202 DOI: 10.1007/978-1-4939-7792-5_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Plasma micro-nanotexturing is a generic technology for topographical and chemical modification of surfaces and their implementation in microfluidics and microarrays. Nanotextured surfaces with desirable chemical functionality (and wetting behavior) have shown excellent biomolecule immobilization and cell adhesion. Specifically, nanotextured hydrophilic areas show (a) strong binding of biomolecules and (b) strong adhesion of cells, while nanotextured superhydrophobic areas show null adsorption of (a) proteins and (b) cells. Here we describe the protocols for (a) biomolecule adsorption control on nanotextured surfaces for microarray fabrication and (b) cell adhesion on such surfaces. 3D plasma nanotextured® substrates are commercialized through Nanoplasmas private company, a spin-off of the National Centre for Scientific Research Demokritos.
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244
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Moser M, Nirmalananthan N, Behnke T, Geißler D, Resch-Genger U. Multimodal Cleavable Reporters versus Conventional Labels for Optical Quantification of Accessible Amino and Carboxy Groups on Nano- and Microparticles. Anal Chem 2018; 90:5887-5895. [DOI: 10.1021/acs.analchem.8b00666] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Marko Moser
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Strasse 11, D-12489 Berlin, Germany
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, D-14195 Berlin, Germany
| | - Nithiya Nirmalananthan
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Strasse 11, D-12489 Berlin, Germany
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, D-14195 Berlin, Germany
| | - Thomas Behnke
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Strasse 11, D-12489 Berlin, Germany
| | - Daniel Geißler
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Strasse 11, D-12489 Berlin, Germany
| | - Ute Resch-Genger
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Strasse 11, D-12489 Berlin, Germany
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245
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Niepel MS, Almouhanna F, Ekambaram BK, Menzel M, Heilmann A, Groth T. Cross-linking multilayers of poly-l-lysine and hyaluronic acid: Effect on mesenchymal stem cell behavior. Int J Artif Organs 2018. [PMID: 29528795 DOI: 10.1177/0391398817752598] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Cells possess a specialized machinery through which they can sense physical as well as chemical alterations in their surrounding microenvironment that affect their cellular behavior. AIM In this study, we aim to establish a polyelectrolyte multilayer system of 24 layers of poly-l-lysine and hyaluronic acid to control stem cell response after chemical cross-linking. METHODS AND RESULTS The multilayer build-up process is monitored using different methods, which show that the studied polyelectrolyte multilayer system grows exponentially following the islands and islets theory. Successful chemical cross-linking is monitored by an increased zeta potential toward negative magnitude and an extraordinary growth in thickness. Human adipose-derived stem cells are used here and a relationship between cross-linking degree and cell spreading is shown as cells seeded on higher cross-linked polyelectrolyte multilayer show enhanced spreading. Furthermore, cells that fail to establish focal adhesions on native and low cross-linked polyelectrolyte multilayer films do not proliferate to a high extent in comparison to cells seeded on highly cross-linked polyelectrolyte multilayer, which also show an increased metabolic activity. Moreover, this study shows the relation between cross-linking degree and human adipose-derived stem cell lineage commitment. Histological staining reveals that highly cross-linked polyelectrolyte multilayers support osteogenic differentiation, whereas less cross-linked and native polyelectrolyte multilayers support adipogenic differentiation in the absence of any specific inducers. CONCLUSION Owing to the precise control of polyelectrolyte multilayer properties such as potential, wettability, and viscoelasticity, the system presented here offers great potential for guided stem cell differentiation in regenerative medicine, especially in combination with materials exhibiting a defined surface topography.
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Affiliation(s)
- Marcus S Niepel
- 1 Institute of Pharmacy, Biomedical Materials Group, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.,2 Interdisciplinary Center of Materials Science, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Fadi Almouhanna
- 1 Institute of Pharmacy, Biomedical Materials Group, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.,3 Pharmaceutical Biology, Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Heidelberg, Germany
| | - Bhavya K Ekambaram
- 1 Institute of Pharmacy, Biomedical Materials Group, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Matthias Menzel
- 4 Biological and Macromolecular Materials Business Unit, Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Halle (Saale), Germany
| | - Andreas Heilmann
- 4 Biological and Macromolecular Materials Business Unit, Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Halle (Saale), Germany
| | - Thomas Groth
- 1 Institute of Pharmacy, Biomedical Materials Group, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.,2 Interdisciplinary Center of Materials Science, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
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246
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Xiang P, Wang SS, He M, Han YH, Zhou ZH, Chen DL, Li M, Ma LQ. The in vitro and in vivo biocompatibility evaluation of electrospun recombinant spider silk protein/PCL/gelatin for small caliber vascular tissue engineering scaffolds. Colloids Surf B Biointerfaces 2018; 163:19-28. [DOI: 10.1016/j.colsurfb.2017.12.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 11/25/2017] [Accepted: 12/11/2017] [Indexed: 01/29/2023]
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247
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Rose JC, De Laporte L. Hierarchical Design of Tissue Regenerative Constructs. Adv Healthc Mater 2018; 7:e1701067. [PMID: 29369541 DOI: 10.1002/adhm.201701067] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 12/01/2017] [Indexed: 02/05/2023]
Abstract
The worldwide shortage of organs fosters significant advancements in regenerative therapies. Tissue engineering and regeneration aim to supply or repair organs or tissues by combining material scaffolds, biochemical signals, and cells. The greatest challenge entails the creation of a suitable implantable or injectable 3D macroenvironment and microenvironment to allow for ex vivo or in vivo cell-induced tissue formation. This review gives an overview of the essential components of tissue regenerating scaffolds, ranging from the molecular to the macroscopic scale in a hierarchical manner. Further, this review elaborates about recent pivotal technologies, such as photopatterning, electrospinning, 3D bioprinting, or the assembly of micrometer-scale building blocks, which enable the incorporation of local heterogeneities, similar to most native extracellular matrices. These methods are applied to mimic a vast number of different tissues, including cartilage, bone, nerves, muscle, heart, and blood vessels. Despite the tremendous progress that has been made in the last decade, it remains a hurdle to build biomaterial constructs in vitro or in vivo with a native-like structure and architecture, including spatiotemporal control of biofunctional domains and mechanical properties. New chemistries and assembly methods in water will be crucial to develop therapies that are clinically translatable and can evolve into organized and functional tissues.
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Affiliation(s)
- Jonas C. Rose
- DWI—Leibniz Institute for Interactive Materials Forckenbeckstr. 50 Aachen D‐52074 Germany
| | - Laura De Laporte
- DWI—Leibniz Institute for Interactive Materials Forckenbeckstr. 50 Aachen D‐52074 Germany
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248
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Reinhardt A, Thomas I, Schmauck J, Giernoth R, Schulze A, Neundorf I. Electron Beam Immobilization of Novel Antimicrobial, Short Peptide Motifs Leads to Membrane Surfaces with Promising Antibacterial Properties. J Funct Biomater 2018; 9:E21. [PMID: 29495523 PMCID: PMC5872107 DOI: 10.3390/jfb9010021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 02/02/2018] [Accepted: 02/22/2018] [Indexed: 12/03/2022] Open
Abstract
In this study, the efficacy of electron beam irradiation versus chemical coupling for yielding polyethersulfone (PES) membranes with antibacterial properties was investigated. For the surface coating, a recently discovered lead compound, IL-KKA, comprising a short peptide sequence functionalized with imidazolium groups, was used. For better integration within the membrane, several novel variants of IL-KKA were generated. Membrane immobilization was achieved using different doses of electron beam irradiation and NHS/EDC chemical coupling. Physicochemical characterization of the coated membranes was performed by water contact angle measurements, X-ray photoelectron spectroscopy, and scanning electron microscopy. Our results show that electron beam irradiation is as effective and gentle as chemical coupling using the NHS/EDC method. Moreover, it was demonstrated that the obtained membranes exhibit promising antibacterial activity against B. subtilis. In summary, the technique presented herein might be promising as a template for developing future anti-biofilm devices.
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Affiliation(s)
- André Reinhardt
- Department of Chemistry, Biochemistry, University of Cologne, Zülpicher Str. 47a, D-50674 Cologne, Germany.
| | - Isabell Thomas
- Leibniz Institute of Surface Engineering, Permoserstr. 15, D-04318 Leipzig, Germany.
| | - Julie Schmauck
- Department of Chemistry, Organic Chemistry, University of Cologne, Greinstr. 4, D-50939 Cologne, Germany.
| | - Ralf Giernoth
- Department of Chemistry, Organic Chemistry, University of Cologne, Greinstr. 4, D-50939 Cologne, Germany.
| | - Agnes Schulze
- Leibniz Institute of Surface Engineering, Permoserstr. 15, D-04318 Leipzig, Germany.
| | - Ines Neundorf
- Department of Chemistry, Biochemistry, University of Cologne, Zülpicher Str. 47a, D-50674 Cologne, Germany.
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249
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Enhancement of Thermal Stability and Selectivity by Introducing Aminotriazine Comonomer to Poly(Octadecyl Acrylate)-Grafted Silica as Chromatography Matrix. SEPARATIONS 2018. [DOI: 10.3390/separations5010015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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250
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Senapati S, Shukla R, Tripathi YB, Mahanta AK, Rana D, Maiti P. Engineered Cellular Uptake and Controlled Drug Delivery Using Two Dimensional Nanoparticle and Polymer for Cancer Treatment. Mol Pharm 2018; 15:679-694. [PMID: 29298488 DOI: 10.1021/acs.molpharmaceut.7b01119] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Two major problems in chemotherapy, poor bioavailability of hydrophobic anticancer drug and its adverse side effects causing nausea, are taken into account by developing a sustained drug release vehicle along with enhanced bioavailability using two-dimensional layered double hydroxides (LDHs) with appropriate surface charge and its subsequent embedment in polymer matrix. A model hydrophobic anticancer drug, raloxifene hydrochloride (RH), is intercalated into a series of zinc iron LDHs with varying anion charge densities using an ion exchange technique. To achieve significant sustained delivery, drug-intercalated LDH is embedded in poly(ε-caprolactone) (PCL) matrix to develop intravenous administration and to improve the therapeutic index of the drug. The cause of sustained release is visualized from the strong interaction between LDH and drug, as measured through spectroscopic techniques, like X-ray photoelectron spectroscopy, infrared, UV-visible spectroscopy, and thermal measurement (depression of melting temperature and considerable reduction in heat of fusion), using differential scanning calorimeter, followed by delayed diffusion of drug from polymer matrix. Interestingly, polymer nanohybrid exhibits long-term and excellent in vitro antitumor efficacy as opposed to pure drug or drug-intercalated LDH or only drug embedded PCL (conventional drug delivery vehicle) as evident from cell viability and cell adhesion experiments prompting a model depicting greater killing efficiency (cellular uptake) of the delivery vehicle (polymer nanohybrid) controlled by its better cell adhesion as noticed through cellular uptake after tagging of fluorescence rhodamine B separately to drug and LDH. In vivo studies also confirm the sustained release of drug in the bloodstream of albino rats using polymer nanohybrid (novel drug delivery vehicle) along with a healthy liver vis-à-vis burst release using pure drug/drug-intercalated LDHs with considerable damaged liver.
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Affiliation(s)
- Sudipta Senapati
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University) , Varanasi 221 005, India
| | - Rashmi Shukla
- Department of Medicinal Chemistry, Institute of Medical Science, Banaras Hindu University , Varanasi 221 005, India
| | - Yamini Bhusan Tripathi
- Department of Medicinal Chemistry, Institute of Medical Science, Banaras Hindu University , Varanasi 221 005, India
| | - Arun Kumar Mahanta
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University) , Varanasi 221 005, India
| | - Dipak Rana
- Industrial Membrane Research Institute, Department of Chemical and Biological Engineering, University of Ottawa , 161 Louis Pasteur St., Ottawa, ON KIN 6N5, Canada
| | - Pralay Maiti
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University) , Varanasi 221 005, India
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