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Beňo M, Beňová-Liszeková D, Kostič I, Šerý M, Mentelová L, Procházka M, Šoltýs J, Trusinová L, Ritomský M, Orovčík L, Jerigová M, Velič D, Machata P, Omastová M, Chase BA, Farkaš R. Gross morphology and adhesion-associated physical properties of Drosophila larval salivary gland glue secretion. Sci Rep 2024; 14:9779. [PMID: 38684688 PMCID: PMC11059401 DOI: 10.1038/s41598-024-57292-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 03/16/2024] [Indexed: 05/02/2024] Open
Abstract
One of the major functions of the larval salivary glands (SGs) of many Drosophila species is to produce a massive secretion during puparium formation. This so-called proteinaceous glue is exocytosed into the centrally located lumen, and subsequently expectorated, serving as an adhesive to attach the puparial case to a solid substrate during metamorphosis. Although this was first described almost 70 years ago, a detailed description of the morphology and mechanical properties of the glue is largely missing. Its main known physical property is that it is released as a watery liquid that quickly hardens into a solid cement. Here, we provide a detailed morphological and topological analysis of the solidified glue. We demonstrated that it forms a distinctive enamel-like plaque that is composed of a central fingerprint surrounded by a cascade of laterally layered terraces. The solidifying glue rapidly produces crystals of KCl on these alluvial-like terraces. Since the properties of the glue affect the adhesion of the puparium to its substrate, and so can influence the success of metamorphosis, we evaluated over 80 different materials for their ability to adhere to the glue to determine which properties favor strong adhesion. We found that the alkaline Sgs-glue adheres strongly to wettable and positively charged surfaces but not to neutral or negatively charged and hydrophobic surfaces. Puparia formed on unfavored materials can be removed easily without leaving fingerprints or cascading terraces. For successful adhesion of the Sgs-glue, the material surface must display a specific type of triboelectric charge. Interestingly, the expectorated glue can move upwards against gravity on the surface of freshly formed puparia via specific, unique and novel anatomical structures present in the puparial's lateral abdominal segments that we have named bidentia.
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Affiliation(s)
- Milan Beňo
- Laboratory of Developmental Genetics, Institute of Experimental Endocrinology, Biomedical Research Center v.v.i., Slovak Academy of Sciences, Dúbravská Cesta 9, 84505, Bratislava, Slovakia
| | - Denisa Beňová-Liszeková
- Laboratory of Developmental Genetics, Institute of Experimental Endocrinology, Biomedical Research Center v.v.i., Slovak Academy of Sciences, Dúbravská Cesta 9, 84505, Bratislava, Slovakia
| | - Ivan Kostič
- Department of Sensor Information Systems and Technologies, Institute of Informatics v.v.i., Slovak Academy of Sciences, Dúbravská Cesta 9, 845 07, Bratislava, Slovakia
| | - Michal Šerý
- Department of Applied Physics and Technology, Faculty of Education, University of South Bohemia, Jeronýmova 10, 37115, České Budějovice, Czech Republic
| | - Lucia Mentelová
- Department of Genetics, Comenius University, Mlynská Dolina, B-1, 84215, Bratislava, Slovakia
| | - Michal Procházka
- Department of Composite Materials, Polymer Institute v.v.i., Slovak Academy of Sciences, Dúbravská Cesta 9, 84541, Bratislava, Slovakia
| | - Ján Šoltýs
- Department of Physics and Technology at Nanoscale, Institute of Electrical Engineering v.v.i., Slovak Academy of Sciences, Dúbravská Cesta 9, 84104, Bratislava, Slovakia
| | - Ludmila Trusinová
- Laboratory of Developmental Genetics, Institute of Experimental Endocrinology, Biomedical Research Center v.v.i., Slovak Academy of Sciences, Dúbravská Cesta 9, 84505, Bratislava, Slovakia
| | - Mário Ritomský
- Department of Sensor Information Systems and Technologies, Institute of Informatics v.v.i., Slovak Academy of Sciences, Dúbravská Cesta 9, 845 07, Bratislava, Slovakia
| | - Lubomír Orovčík
- Division of Microstructure of Surfaces and Interfaces, Institute of Materials and Machine Mechanics v.v.i., Slovak Academy of Sciences, Dúbravská Cesta 9, 84513, Bratislava, Slovakia
| | - Monika Jerigová
- Laboratory of Secondary Ion Mass-Spectrometry, International Laser Centre, Slovak Centre of Scientific and Technical Information, Ilkovičova 3, 84104, Bratislava, Slovakia
| | - Dušan Velič
- Laboratory of Secondary Ion Mass-Spectrometry, International Laser Centre, Slovak Centre of Scientific and Technical Information, Ilkovičova 3, 84104, Bratislava, Slovakia
| | - Peter Machata
- Department of Composite Materials, Polymer Institute v.v.i., Slovak Academy of Sciences, Dúbravská Cesta 9, 84541, Bratislava, Slovakia
| | - Mária Omastová
- Department of Composite Materials, Polymer Institute v.v.i., Slovak Academy of Sciences, Dúbravská Cesta 9, 84541, Bratislava, Slovakia
| | - Bruce A Chase
- Department of Biology, University of Nebraska, 6001 Dodge Street, Omaha, NE, 68182-0040, USA
- Department of Data Analytics, Endeavor Health, NorthShore University Health System, Skokie, IL, 60077, USA
| | - Robert Farkaš
- Laboratory of Developmental Genetics, Institute of Experimental Endocrinology, Biomedical Research Center v.v.i., Slovak Academy of Sciences, Dúbravská Cesta 9, 84505, Bratislava, Slovakia.
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Shindler S, Franklin T, Yang R. Prevention and characterization of thin film defects induced by contaminant aggregates in initiated chemical vapor deposition. J Chem Phys 2024; 160:144904. [PMID: 38597315 DOI: 10.1063/5.0195014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 03/11/2024] [Indexed: 04/11/2024] Open
Abstract
As initiated Chemical Vapor Deposition (iCVD) finds increasing application in precision industries like electronics and optics, defect prevention will become critical. While studies of non-ideal morphology exist in the iCVD literature, no studies investigate the role of defects. To address this knowledge gap, we show that the buildup of short-chain polymers or oligomers during normal operation of an iCVD reactor can lead to defects that compromise film integrity. We used atomic force microscopy to show that oligomer aggregates selectively prevented film growth, causing these hole-like defects. X-ray diffraction and optical microscopy demonstrated the crystallinity of the aggregates, pointing to a flat-on lamellar or mono-lamellar structure. To understand the origin of the aggregates, spectroscopic ellipsometry showed that samples exposed to the reactor consistently accrued low-volatility contaminants. X-ray photoelectron spectroscopy revealed material derived from polymerization in the contamination, while scanning electron microscopy showed the presence of defect-causing aggregates. We directly linked oligomeric/polymeric contamination with defect formation by showing an increased defect rate when a contaminant polymer was heated alongside the sample. Most importantly, we showed that starting a deposition at a high sample temperature (e.g., 50 °C) before reducing it to the desired setpoint (e.g., 9 °C) unilaterally prevented defects, providing a simple method to prevent defects with minimal impact on operations.
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Affiliation(s)
- Simon Shindler
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, 120 Olin Hall, Ithaca, New York 14853, USA
| | - Trevor Franklin
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, 120 Olin Hall, Ithaca, New York 14853, USA
| | - Rong Yang
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, 120 Olin Hall, Ithaca, New York 14853, USA
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Brinza M, Schröder S, Ababii N, Gronenberg M, Strunskus T, Pauporte T, Adelung R, Faupel F, Lupan O. Two-in-One Sensor Based on PV4D4-Coated TiO 2 Films for Food Spoilage Detection and as a Breath Marker for Several Diseases. BIOSENSORS 2023; 13:bios13050538. [PMID: 37232899 DOI: 10.3390/bios13050538] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/03/2023] [Accepted: 05/08/2023] [Indexed: 05/27/2023]
Abstract
Certain molecules act as biomarkers in exhaled breath or outgassing vapors of biological systems. Specifically, ammonia (NH3) can serve as a tracer for food spoilage as well as a breath marker for several diseases. H2 gas in the exhaled breath can be associated with gastric disorders. This initiates an increasing demand for small and reliable devices with high sensitivity capable of detecting such molecules. Metal-oxide gas sensors present an excellent tradeoff, e.g., compared to expensive and large gas chromatographs for this purpose. However, selective identification of NH3 at the parts-per-million (ppm) level as well as detection of multiple gases in gas mixtures with one sensor remain a challenge. In this work, a new two-in-one sensor for NH3 and H2 detection is presented, which provides stable, precise, and very selective properties for the tracking of these vapors at low concentrations. The fabricated 15 nm TiO2 gas sensors, which were annealed at 610 °C, formed two crystal phases, namely anatase and rutile, and afterwards were covered with a thin 25 nm PV4D4 polymer nanolayer via initiated chemical vapor deposition (iCVD) and showed precise NH3 response at room temperature and exclusive H2 detection at elevated operating temperatures. This enables new possibilities in application fields such as biomedical diagnosis, biosensors, and the development of non-invasive technology.
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Affiliation(s)
- Mihai Brinza
- Center for Nanotechnology and Nanosensors, Department of Microelectronics and Biomedical Engineering, Technical University of Moldova, 168 Stefan cel Mare Av., MD-2004 Chisinau, Moldova
| | - Stefan Schröder
- Department of Materials Science, Chair for Multicomponent Materials, Faculty of Engineering, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany
| | - Nicolai Ababii
- Center for Nanotechnology and Nanosensors, Department of Microelectronics and Biomedical Engineering, Technical University of Moldova, 168 Stefan cel Mare Av., MD-2004 Chisinau, Moldova
| | - Monja Gronenberg
- Department of Materials Science, Chair for Functional Nanomaterials, Faculty of Engineering, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany
| | - Thomas Strunskus
- Department of Materials Science, Chair for Multicomponent Materials, Faculty of Engineering, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany
| | - Thierry Pauporte
- Institut de Recherche de Chimie Paris-IRCP, Chimie ParisTech, PSL Université, 11 rue Pierre et Marie Curie, 75231 Paris, Cedex 05, France
| | - Rainer Adelung
- Department of Materials Science, Chair for Functional Nanomaterials, Faculty of Engineering, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany
| | - Franz Faupel
- Department of Materials Science, Chair for Multicomponent Materials, Faculty of Engineering, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany
| | - Oleg Lupan
- Center for Nanotechnology and Nanosensors, Department of Microelectronics and Biomedical Engineering, Technical University of Moldova, 168 Stefan cel Mare Av., MD-2004 Chisinau, Moldova
- Department of Materials Science, Chair for Multicomponent Materials, Faculty of Engineering, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany
- Department of Materials Science, Chair for Functional Nanomaterials, Faculty of Engineering, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany
- Institut de Recherche de Chimie Paris-IRCP, Chimie ParisTech, PSL Université, 11 rue Pierre et Marie Curie, 75231 Paris, Cedex 05, France
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Tuning the Selectivity of Metal Oxide Gas Sensors with Vapor Phase Deposited Ultrathin Polymer Thin Films. Polymers (Basel) 2023; 15:polym15030524. [PMID: 36771827 PMCID: PMC9919086 DOI: 10.3390/polym15030524] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/10/2023] [Accepted: 01/15/2023] [Indexed: 01/21/2023] Open
Abstract
Metal oxide gas sensors are of great interest for applications ranging from lambda sensors to early hazard detection in explosive media and leakage detection due to their superior properties with regard to sensitivity and lifetime, as well as their low cost and portability. However, the influence of ambient gases on the gas response, energy consumption and selectivity still needs to be improved and they are thus the subject of intensive research. In this work, a simple approach is presented to modify and increase the selectivity of gas sensing structures with an ultrathin polymer thin film. The different gas sensing surfaces, CuO, Al2O3/CuO and TiO2 are coated with a conformal < 30 nm Poly(1,3,5,7-tetramethyl-tetravinyl cyclotetrasiloxane) (PV4D4) thin film via solvent-free initiated chemical vapor deposition (iCVD). The obtained structures demonstrate a change in selectivity from ethanol vapor to 2-propanol vapor and an increase in selectivity compared to other vapors of volatile organic compounds. In the case of TiO2 structures coated with a PV4D4 thin film, the increase in selectivity to 2-propanol vapors is observed even at relatively low operating temperatures, starting from >200 °C. The present study demonstrates possibilities for improving the properties of metal oxide gas sensors, which is very important in applications in fields such as medicine, security and food safety.
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Tan J, Chen K, Cheng J, Song Z, Zhang J, Zheng S, Xu Z, E S. A Stretchable Expanded Polytetrafluorethylene-Silicone Elastomer Composite Electret for Wearable Sensor. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:158. [PMID: 36616067 PMCID: PMC9823660 DOI: 10.3390/nano13010158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/21/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
Soaring developments in wearable electronics raise an urgent need for stretchable electrets. However, achieving soft electrets simultaneously possessing excellent stretchability, longevity, and high charge density is still challenging. Herein, a facile approach is proposed to prepare an all-polymer hybrid composite electret based on the coupling of elastomer and ePTFE membrane. The composite electrets are fabricated via a facile casting and thermal curing process. The obtained soft composite electrets exhibit constantly high surface potential (-0.38 kV) over a long time (30 days), large strain (450%), low hysteresis, and excellent durability (15,000 cycles). To demonstrate the applications, the stretchable electret is utilized to assemble a self-powered flexible sensor based on the electrostatic induction effect for the monitoring of human activities. Additionally, output signals in the pressure mode almost two orders of magnitude larger than those in the strain mode are observed and the sensing mechanism in each mode is investigated.
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Affiliation(s)
- Jianbo Tan
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province, College of Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Kaikai Chen
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province, College of Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Jinzhan Cheng
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province, College of Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Zhaoqin Song
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province, College of Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Jiahui Zhang
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province, College of Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Shaodi Zheng
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province, College of Engineering, Zhejiang Normal University, Jinhua 321004, China
- Jinhua Intelligent Manufacturing Research Institute, Jinhua 321004, China
| | - Zisheng Xu
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province, College of Engineering, Zhejiang Normal University, Jinhua 321004, China
- Jinhua Intelligent Manufacturing Research Institute, Jinhua 321004, China
| | - Shiju E
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province, College of Engineering, Zhejiang Normal University, Jinhua 321004, China
- Jinhua Intelligent Manufacturing Research Institute, Jinhua 321004, China
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PTFE porous membrane technology: A comprehensive review. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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7
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Stretchable π-conjugated polymer electrets for mechanoelectric generators. Polym J 2022. [DOI: 10.1038/s41428-022-00725-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
AbstractElectrets are materials that retain quasi-permanent electric charges and are attracting attention as key components of batteryless micropower supplies. A chemical structure that facilitates ionization and that can stabilize these charges, such as a π-conjugated system, is expected to increase the charge density compared with that of conventional insulating polymers. Here, we report a mechanoelectric generator (MEG) (vibrational energy harvester) that uses alkylated π-conjugated polymers (Alk-CPs), which can be monopolarized either into positive or negative mode electrets. With the attachment of insulating, bulky, yet flexible alkyl side chains to the π-conjugated backbone, the poled Alk-CPs showed long charge lifetime suitable for MEGs. The elastic modulus of the electret was adjusted to approximately match that of the stretchable polyurethane substrate by blending two miscible Alk-CPs with different elastic moduli, producing a laminated film that could be stretched up to 300%. The MEG presented showed conformability when applied to a deformable object.
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Shape Memory Alloys and Polymers for MEMS/NEMS Applications: Review on Recent Findings and Challenges in Design, Preparation, and Characterization. METALS 2021. [DOI: 10.3390/met11030415] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Rapid progress in material science and nanotechnology has led to the development of the shape memory alloys (SMA) and the shape memory polymers (SMP) based functional multilayered structures that, due to their capability to achieve the properties not feasible by most natural materials, have attracted a significant attention from the scientific community. These shape memory materials can sustain large deformations, which can be recovered once the appropriate value of an external stimulus is applied. Moreover, the SMAs and SMPs can be reprogrammed to meet several desired functional properties. As a result, SMAs and SMPs multilayered structures benefit from the unprecedented physical and material properties such as the shape memory effect, superelasticity, large displacement actuation, changeable mechanical properties, and the high energy density. They hold promises in the design of advanced functional micro- and nano-electro-mechanical systems (MEMS/NEMS). In this review, we discuss the recent understanding and progress in the fields of the SMAs and SMPs. Particular attention will be given to the existing challenges, critical issues, limitations, and achievements in the preparation and characterization of the SMPs and NiTi-based SMAs thin films, and their heterostructures for MEMS/NEMS applications including both experimental and computational approaches. Examples of the recent MEMS/NEMS devices utilizing the unique properties of SMAs and SMPs such as micropumps, microsensors or tunable metamaterial resonators are highlighted. In addition, we also introduce the prospective future research directions in the fields of SMAs and SMPs for the nanotechnology applications.
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Olvera D, Monaghan MG. Electroactive material-based biosensors for detection and drug delivery. Adv Drug Deliv Rev 2021; 170:396-424. [PMID: 32987096 DOI: 10.1016/j.addr.2020.09.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/22/2020] [Accepted: 09/23/2020] [Indexed: 12/20/2022]
Abstract
Electroactive materials are employed at the interface of biology and electronics due to their advantageous intrinsic properties as soft organic electronics. We examine the most recent literature of electroactive material-based biosensors and their emerging role as theranostic devices for the delivery of therapeutic agents. We consider electroactive materials through the lens of smart drug delivery systems as materials that enable the release of therapeutic cargo in response to specific physiological and external stimuli and discuss the way these mechanisms are integrated into medical devices with examples of the latest advances. Studies that harness features unique to conductive polymers are emphasized; lastly, we highlight new perspectives and future research direction for this emerging technology and the challenges that remain to overcome.
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Schröder S, Hinz AM, Strunskus T, Faupel F. Molecular Insight into Real-Time Reaction Kinetics of Free Radical Polymerization from the Vapor Phase by In-Situ Mass Spectrometry. J Phys Chem A 2021; 125:1661-1667. [PMID: 33577326 DOI: 10.1021/acs.jpca.0c11180] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The combination of organic chemistry and chemical vapor deposition enables a unique way to deposit conformal, high quality polymer thin films from the vapor phase. Particularly initiated chemical vapor deposition (iCVD) has recently shown its great potential in many different application fields. With the ever-increasing demands on the process, the need for additional process refinement is also growing. In this study the enhancement of the iCVD process by in-situ mass spectrometry is presented. The approach enables insight into real-time reaction kinetics during the deposition process as well as identification of reaction pathways. Furthermore, the composition of the gas phase can be precisely controlled and spontaneously adjusted if necessary. Particularly the deposition of thin films with thicknesses in the low nanometer range and the deposition of copolymers can benefit from this approach. The presented approach enables enhanced process control as well as the ability to perform extensive kinetic studies.
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Affiliation(s)
- Stefan Schröder
- Chair for Multicomponent Materials, Institute for Materials Science, Kiel University, 24143 Kiel, Germany
| | - Alexander M Hinz
- Chair for Multicomponent Materials, Institute for Materials Science, Kiel University, 24143 Kiel, Germany
| | - Thomas Strunskus
- Chair for Multicomponent Materials, Institute for Materials Science, Kiel University, 24143 Kiel, Germany
| | - Franz Faupel
- Chair for Multicomponent Materials, Institute for Materials Science, Kiel University, 24143 Kiel, Germany
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High-k Polymer Nanocomposite Materials for Technological Applications. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10124249] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Understanding the properties of small molecules or monomers is decidedly important. The efforts of synthetic chemists and material engineers must be appreciated because of their knowledge of how utilize the properties of synthetic fragments in constructing long-chain macromolecules. Scientists active in this area of macromolecular science have shared their knowledge of catalysts, monomers and a variety of designed nanoparticles in synthetic techniques that create all sorts of nanocomposite polymer stuffs. Such materials are now an integral part of the contemporary world. Polymer nanocomposites with high dielectric constant (high-k) properties are widely applicable in the technological sectors including gate dielectrics, actuators, infrared detectors, tunable capacitors, electro optic devices, organic field-effect transistors (OFETs), and sensors. In this short colloquy, we provided an overview of a few remarkable high-k polymer nanocomposites of material science interest from recent decades.
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Lagomarsini C, Jean‐Mistral C, Kachroudi A, Monfray S, Sylvestre A. Outstanding performance of parylene polymers as electrets for energy harvesting and high‐temperature applications. J Appl Polym Sci 2020. [DOI: 10.1002/app.48790] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Clara Lagomarsini
- University Grenoble Alpes, CNRS, Grenoble INP, G2Elab 38000 Grenoble France
- University Lyon, INSA Lyon, CNRS UMR 5259, LaMCoS Villeurbanne France
| | | | - Achraf Kachroudi
- University Grenoble Alpes, CNRS, Grenoble INP, G2Elab 38000 Grenoble France
| | - Stéphane Monfray
- STMicroelectronics, 850, rue Jean Monnet, F‐38926 Crolles France
| | - Alain Sylvestre
- University Grenoble Alpes, CNRS, Grenoble INP, G2Elab 38000 Grenoble France
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Burk MH, Schröder S, Moormann W, Langbehn D, Strunskus T, Rehders S, Herges R, Faupel F. Fabrication of Diazocine-Based Photochromic Organic Thin Films via Initiated Chemical Vapor Deposition. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02443] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maximilian H. Burk
- Institute for Materials Science, Christian-Albrechts-University, Kaiserstr. 2, 24143 Kiel, Germany
| | - Stefan Schröder
- Institute for Materials Science, Christian-Albrechts-University, Kaiserstr. 2, 24143 Kiel, Germany
| | - Widukind Moormann
- Otto-Diels-Institute for Organic Chemistry, Christian-Albrechts-University, Otto-Hahn-Platz 4, 24118 Kiel, Germany
| | - Daniel Langbehn
- Otto-Diels-Institute for Organic Chemistry, Christian-Albrechts-University, Otto-Hahn-Platz 4, 24118 Kiel, Germany
| | - Thomas Strunskus
- Institute for Materials Science, Christian-Albrechts-University, Kaiserstr. 2, 24143 Kiel, Germany
| | - Stefan Rehders
- Institute for Materials Science, Christian-Albrechts-University, Kaiserstr. 2, 24143 Kiel, Germany
| | - Rainer Herges
- Otto-Diels-Institute for Organic Chemistry, Christian-Albrechts-University, Otto-Hahn-Platz 4, 24118 Kiel, Germany
| | - Franz Faupel
- Institute for Materials Science, Christian-Albrechts-University, Kaiserstr. 2, 24143 Kiel, Germany
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14
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Abstract
At the biointerface where materials and microorganisms meet, the organic and synthetic worlds merge into a new science that directs the design and safe use of synthetic materials for biological applications. Vapor deposition techniques provide an effective way to control the material properties of these biointerfaces with molecular-level precision that is important for biomaterials to interface with bacteria. In recent years, biointerface research that focuses on bacteria-surface interactions has been primarily driven by the goals of killing bacteria (antimicrobial) and fouling prevention (antifouling). Nevertheless, vapor deposition techniques have the potential to create biointerfaces with features that can manipulate and dictate the behavior of bacteria rather than killing or deterring them. In this review, we focus on recent advances in antimicrobial and antifouling biointerfaces produced through vapor deposition and provide an outlook on opportunities to capitalize on the features of these techniques to find unexplored connections between surface features and microbial behavior.
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Affiliation(s)
- Trevor B. Donadt
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Rong Yang
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
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