1
|
Ardoino N, Lunelli L, Pucker G, Vanzetti L, Favaretto R, Pasquardini L, Pederzolli C, Guardiani C, Potrich C. Optimization of Surface Functionalizations for Ring Resonator-Based Biosensors. SENSORS (BASEL, SWITZERLAND) 2024; 24:3107. [PMID: 38793970 PMCID: PMC11124806 DOI: 10.3390/s24103107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/10/2024] [Accepted: 05/11/2024] [Indexed: 05/26/2024]
Abstract
Liquid biopsy is expected to become widespread in the coming years thanks to point of care devices, which can include label-free biosensors. The surface functionalization of biosensors is a crucial aspect that influences their overall performance, resulting in the accurate, sensitive, and specific detection of target molecules. Here, the surface of a microring resonator (MRR)-based biosensor was functionalized for the detection of protein biomarkers. Among the several existing functionalization methods, a strategy based on aptamers and mercaptosilanes was selected as the most highly performing approach. All steps of the functionalization protocol were carefully characterized and optimized to obtain a suitable protocol to be transferred to the final biosensor. The functionalization protocol comprised a preliminary plasma treatment aimed at cleaning and activating the surface for the subsequent silanization step. Different plasma treatments as well as different silanes were tested in order to covalently bind aptamers specific to different biomarker targets, i.e., C-reactive protein, SARS-CoV-2 spike protein, and thrombin. Argon plasma and 1% v/v mercaptosilane were found as the most suitable for obtaining a homogeneous layer apt to aptamer conjugation. The aptamer concentration and time for immobilization were optimized, resulting in 1 µM and 3 h, respectively. A final passivation step based on mercaptohexanol was also implemented. The functionalization protocol was then evaluated for the detection of thrombin with a photonic biosensor based on microring resonators. The preliminary results identified the successful recognition of the correct target as well as some limitations of the developed protocol in real measurement conditions.
Collapse
Affiliation(s)
- Niccolò Ardoino
- FTH S.r.l., Via Sommarive 18, I-38123 Trento, Italy; (N.A.); (R.F.); (C.G.)
| | - Lorenzo Lunelli
- Center for Sensors & Devices, Fondazione Bruno Kessler, Via Sommarive 18, I-38123 Trento, Italy; (L.L.); (G.P.); (L.V.); (C.P.)
- Istituto di Biofisica, Consiglio Nazionale delle Ricerche, Via alla Cascata 56/C, I-38123 Trento, Italy
| | - Georg Pucker
- Center for Sensors & Devices, Fondazione Bruno Kessler, Via Sommarive 18, I-38123 Trento, Italy; (L.L.); (G.P.); (L.V.); (C.P.)
| | - Lia Vanzetti
- Center for Sensors & Devices, Fondazione Bruno Kessler, Via Sommarive 18, I-38123 Trento, Italy; (L.L.); (G.P.); (L.V.); (C.P.)
| | - Rachele Favaretto
- FTH S.r.l., Via Sommarive 18, I-38123 Trento, Italy; (N.A.); (R.F.); (C.G.)
- Department of Physics, University of Trento, Via Sommarive 14, Povo, I-38123 Trento, Italy
| | - Laura Pasquardini
- Indivenire S.r.l., Via Sommarive 18, I-38123 Trento, Italy;
- Department of Engineering, University of Campania “Luigi Vanvitelli”, Via Roma 29, I-81031 Aversa, Italy
| | - Cecilia Pederzolli
- Center for Sensors & Devices, Fondazione Bruno Kessler, Via Sommarive 18, I-38123 Trento, Italy; (L.L.); (G.P.); (L.V.); (C.P.)
| | - Carlo Guardiani
- FTH S.r.l., Via Sommarive 18, I-38123 Trento, Italy; (N.A.); (R.F.); (C.G.)
| | - Cristina Potrich
- Center for Sensors & Devices, Fondazione Bruno Kessler, Via Sommarive 18, I-38123 Trento, Italy; (L.L.); (G.P.); (L.V.); (C.P.)
- Istituto di Biofisica, Consiglio Nazionale delle Ricerche, Via alla Cascata 56/C, I-38123 Trento, Italy
| |
Collapse
|
2
|
Fateh S, Alromaihi RA, Ghaemmaghami AM, Alexander MR. Unlocking Bio-Instructive Polymers: A Novel Multi-Well Screening Platform Based on Secretome Sampling. Bio Protoc 2024; 14:e4939. [PMID: 38405080 PMCID: PMC10883890 DOI: 10.21769/bioprotoc.4939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/01/2024] [Accepted: 01/05/2024] [Indexed: 02/27/2024] Open
Abstract
Biomaterials are designed to interact with biological systems to replace, support, enhance, or monitor their function. However, there are challenges associated with traditional biomaterials' development due to the lack of underlying theory governing cell response to materials' chemistry. This leads to the time-consuming process of testing different materials plus the adverse reactions in the body such as cytotoxicity and foreign body response. High-throughput screening (HTS) offers a solution to these challenges by enabling rapid and simultaneous testing of a large number of materials to determine their bio-interactions and biocompatibility. Secreted proteins regulate many physiological functions and determine the success of implanted biomaterials through directing cell behaviour. However, the majority of biomaterials' HTS platforms are suitable for microscopic analyses of cell behaviour and not for investigating non-adherent cells or measuring cell secretions. Here, we describe a multi-well platform adaptable to robotic printing of polymers and suitable for secretome profiling of both adherent and non-adherent cells. We detail the platform's development steps, encompassing the preparation of individual cell culture chambers, polymer printing, and the culture environment, as well as examples to demonstrate surface chemical characterisation and biological assessments of secreted mediators. Such platforms will no doubt facilitate the discovery of novel biomaterials and broaden their scope by adapting wider arrays of cell types and incorporating assessments of both secretome and cell-bound interactions. Key features • Detailed protocols for preparation of substrate for contact printing of acrylate-based polymers including O2 plasma etching, functionalisation process, and Poly(2-hydroxyethyl methacrylate) (pHEMA) dip coating. • Preparations of 7 mm × 7 mm polymers employing pin printing system. • Provision of confined area for each polymer using ProPlate® multi-well chambers. • Compatibility of this platform was validated using adherent cells [primary human monocyte-derived macrophages (MDMs)) and non-adherent cells (primary human monocyte-derived dendritic cells (moDCs)]. • Examples of the adaptability of the platform for secretome analysis including five different cytokines using enzyme-linked immunosorbent assay (ELISA, DuoSet®). Graphical overview.
Collapse
Affiliation(s)
- Shirin Fateh
- School of Pharmacy, University of Nottingham, Nottingham, UK
| | | | | | | |
Collapse
|
3
|
Nowaczyński R, Paszke P, Csaki A, Mazuryk J, Rożniatowski K, Piotrowski P, Pawlak DA. Functionalization of Phosphate and Tellurite Glasses and Spherical Whispering Gallery Mode Microresonators. ACS OMEGA 2023; 8:48159-48165. [PMID: 38144065 PMCID: PMC10734010 DOI: 10.1021/acsomega.3c07075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/10/2023] [Accepted: 11/22/2023] [Indexed: 12/26/2023]
Abstract
Active whispering gallery mode resonators made as spherical microspheres doped with quantum dots or rare earth ions achieve high quality factors and are excellent candidates for biosensors capable of detecting biomolecules at low concentrations. However, to produce quantum dot-doped microspheres, new low melting temperature glasses are sought, which require surface functionalization and antibody immobilization for biosensor development. Here, we demonstrate the successful functionalization of three low melting point glasses and microspheres made of them. The glasses were made from sodium borophosphate, sodium aluminophosphate, and tellurite, and then, they were functionalized using (3-glycidyloxypropyl)trimethoxysilane in ethanol- and toluene-based protocols. Proper silanization was confirmed by energy-dispersive X-ray spectroscopy and fluorescence microscopy of an amino-modified luminescent oligonucleotide probe. Fluorescence imaging showed successful silanization for all tested samples and no degradation for aluminophosphate and tellurite glasses. The strongest signal was registered for tellurite glass samples functionalized using the toluene-based silanization protocol. This conclusion implies that this functionalization method is the most efficient and is highly recommended for future antibody immobilization and biosensing application.
Collapse
Affiliation(s)
- Rafał Nowaczyński
- Faculty
of Materials Science and Engineering, Warsaw
University of Technology, Woloska 141, 02-507 Warsaw, Poland
- Department
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Piotr Paszke
- Department
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
- ENSEMBLE3
Centre of Excellence, Wolczynska 133, 01-919 Warsaw, Poland
| | - Andrea Csaki
- Leibniz
Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany
| | - Jarosław Mazuryk
- Department
of Electrode Processes, Institute of Physical
Chemistry Polish Academy of Sciences, Marcina Kasprzaka 44/52, 01-224 Warsaw, Poland
- Bio
&
Soft Matter Group, Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, 1 Place Louis Pasteur, 1348 Louvain-la-Neuve, Belgium
| | - Krzysztof Rożniatowski
- Faculty
of Materials Science and Engineering, Warsaw
University of Technology, Woloska 141, 02-507 Warsaw, Poland
| | - Piotr Piotrowski
- Department
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
- ENSEMBLE3
Centre of Excellence, Wolczynska 133, 01-919 Warsaw, Poland
| | - Dorota Anna Pawlak
- Department
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
- ENSEMBLE3
Centre of Excellence, Wolczynska 133, 01-919 Warsaw, Poland
- Łukasiewicz
Research Network - Institute of Microelectronics and Photonics, Wolczynska 133, 01-919 Warsaw, Poland
| |
Collapse
|
4
|
Shakurov R, Sizova S, Dudik S, Serkina A, Bazhutov M, Stanaityte V, Tulyagin P, Konopsky V, Alieva E, Sekatskii S, Bespyatykh J, Basmanov D. Dendrimer-Based Coatings on a Photonic Crystal Surface for Ultra-Sensitive Small Molecule Detection. Polymers (Basel) 2023; 15:2607. [PMID: 37376252 DOI: 10.3390/polym15122607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/02/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
We propose and demonstrate dendrimer-based coatings for a sensitive biochip surface that enhance the high-performance sorption of small molecules (i.e., biomolecules with low molecular weights) and the sensitivity of a label-free, real-time photonic crystal surface mode (PC SM) biosensor. Biomolecule sorption is detected by measuring changes in the parameters of optical modes on the surface of a photonic crystal (PC). We describe the step-by-step biochip fabrication process. Using oligonucleotides as small molecules and PC SM visualization in a microfluidic mode, we show that the PAMAM (poly-amidoamine)-modified chip's sorption efficiency is almost 14 times higher than that of the planar aminosilane layer and 5 times higher than the 3D epoxy-dextran matrix. The results obtained demonstrate a promising direction for further development of the dendrimer-based PC SM sensor method as an advanced label-free microfluidic tool for detecting biomolecule interactions. Current label-free methods for small biomolecule detection, such as surface plasmon resonance (SPR), have a detection limit down to pM. In this work, we achieved for a PC SM biosensor a Limit of Quantitation of up to 70 fM, which is comparable with the best label-using methods without their inherent disadvantages, such as changes in molecular activity caused by labeling.
Collapse
Affiliation(s)
- Ruslan Shakurov
- Lopukhin Federal Research and Clinical Center of Physical Chemical Medicine of Federal Medical Biological Agency, 1A Malaya Pirogovskaya Street, 119435 Moscow, Russia
- Research Institute for Systems Biology and Medicine (RISBM), Nauchniy Proezd 18, 117246 Moscow, Russia
| | - Svetlana Sizova
- Lopukhin Federal Research and Clinical Center of Physical Chemical Medicine of Federal Medical Biological Agency, 1A Malaya Pirogovskaya Street, 119435 Moscow, Russia
- Research Institute for Systems Biology and Medicine (RISBM), Nauchniy Proezd 18, 117246 Moscow, Russia
- Shemyakin & Ovchinnikov Institute of Bioorganic Chemistry RAS, 16/10 Miklukho-Maklaya Street, 117997 Moscow, Russia
| | - Stepan Dudik
- Lopukhin Federal Research and Clinical Center of Physical Chemical Medicine of Federal Medical Biological Agency, 1A Malaya Pirogovskaya Street, 119435 Moscow, Russia
- Research Institute for Systems Biology and Medicine (RISBM), Nauchniy Proezd 18, 117246 Moscow, Russia
| | - Anna Serkina
- Lopukhin Federal Research and Clinical Center of Physical Chemical Medicine of Federal Medical Biological Agency, 1A Malaya Pirogovskaya Street, 119435 Moscow, Russia
| | - Mark Bazhutov
- Lopukhin Federal Research and Clinical Center of Physical Chemical Medicine of Federal Medical Biological Agency, 1A Malaya Pirogovskaya Street, 119435 Moscow, Russia
| | - Viktorija Stanaityte
- Lopukhin Federal Research and Clinical Center of Physical Chemical Medicine of Federal Medical Biological Agency, 1A Malaya Pirogovskaya Street, 119435 Moscow, Russia
| | - Petr Tulyagin
- Research Institute for Systems Biology and Medicine (RISBM), Nauchniy Proezd 18, 117246 Moscow, Russia
| | - Valery Konopsky
- Institute of Spectroscopy RAS, 5 Fizicheskaya Street, Troitsk, 108840 Moscow, Russia
| | - Elena Alieva
- Institute of Spectroscopy RAS, 5 Fizicheskaya Street, Troitsk, 108840 Moscow, Russia
| | - Sergey Sekatskii
- Laboratory of Biological Electron Microscopy, Institute of Physics (IPHYS), BSP 419, Ecole Polytechnique Fédérale de Lausanne, and Department of Fundamental Biology, Faculty of Biology and Medicine, University of Lausanne, CH1015 Lausanne, Switzerland
| | - Julia Bespyatykh
- Lopukhin Federal Research and Clinical Center of Physical Chemical Medicine of Federal Medical Biological Agency, 1A Malaya Pirogovskaya Street, 119435 Moscow, Russia
- Expertise Department in Anti-Doping and Drug Control, Mendeleev University of Chemical Technology of Russia, 9, Miusskaya Square, 125047 Moscow, Russia
- Institute of Physics and Technology, 9 Institutskiy Pereulok, 141701 Dolgoprudny, Russia
| | - Dmitry Basmanov
- Lopukhin Federal Research and Clinical Center of Physical Chemical Medicine of Federal Medical Biological Agency, 1A Malaya Pirogovskaya Street, 119435 Moscow, Russia
- Research Institute for Systems Biology and Medicine (RISBM), Nauchniy Proezd 18, 117246 Moscow, Russia
- Institute of Physics and Technology, 9 Institutskiy Pereulok, 141701 Dolgoprudny, Russia
| |
Collapse
|
5
|
Galeano-Duque Y, Poveda-Jaramillo JC, Mesa M. Considerations about 3-glycidoxypropyltrimethoxysilane reactivity in function of the complexity of aqueous and plasma gel media. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
|
6
|
Kaur N, Singh M, Casotto A, Sangaletti L, Comini E. Self-assembled monolayer functionalized NiO nanowires: strategy to enhance the sensing performance of p-type metal oxide. Chem Commun (Camb) 2023; 59:1329-1332. [PMID: 36645096 DOI: 10.1039/d2cc06530d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A novel strategy for the improvement in the sensing performance of p-type NiO is developed by employing the unique functional properties of self-assembled monolayers. Specifically, hole concentration near the surface of NiO nanowires (NWs) is modulated by terminal epoxy groups of the organosilane. This modulation leads to the increase in electron transfer from reducing gases to NWs surface. As a result, SAM-functionalized sensors showed 9-times higher response at low-temperature as compared to bare NiO NWs.
Collapse
Affiliation(s)
- Navpreet Kaur
- SENSOR Laboratory, University of Brescia and INSTM UdR Brescia, Via D. Valotti 9, Brescia 25133, Italy.
| | - Mandeep Singh
- SENSOR Laboratory, University of Brescia and INSTM UdR Brescia, Via D. Valotti 9, Brescia 25133, Italy. .,Department of Physics, Politecnico Di Milano, Milano 20133, Italy
| | - Andrea Casotto
- I-LAMP and Dipartimento di Matematica e Fisica, Università Cattolica del Sacro Cuore, via della Garzetta 48, Brescia 25133, Italy.,Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Luigi Sangaletti
- I-LAMP and Dipartimento di Matematica e Fisica, Università Cattolica del Sacro Cuore, via della Garzetta 48, Brescia 25133, Italy
| | - Elisabetta Comini
- SENSOR Laboratory, University of Brescia and INSTM UdR Brescia, Via D. Valotti 9, Brescia 25133, Italy.
| |
Collapse
|
7
|
Debela AM, Gonzalez C, Pucci M, Hudie SM, Bazin I. Surface Functionalization Strategies of Polystyrene for the Development Peptide-Based Toxin Recognition. SENSORS (BASEL, SWITZERLAND) 2022; 22:9538. [PMID: 36502240 PMCID: PMC9735437 DOI: 10.3390/s22239538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/22/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
The development of a robust surface functionalization method is indispensable in controlling the efficiency, sensitivity, and stability of a detection system. Polystyrene (PS) has been used as a support material in various biomedical fields. Here, we report various strategies of polystyrene surface functionalization using siloxane derivative, divinyl sulfone, cyanogen bromide, and carbonyl diimidazole for the immobilization of biological recognition elements (peptide developed to detect ochratoxin A) for a binding assay with ochratoxin A (OTA). Our objective is to develop future detection systems that would use polystyrene cuvettes such as immobilization support of biological recognition elements. The goal of this article is to demonstrate the proof of concept of this immobilization support. The results obtained reveal the successful modification of polystyrene surfaces with the coupling agents. Furthermore, the immobilization of biological recognition elements, for the OTA binding assay with horseradish peroxidase conjugated to ochratoxin A (OTA-HRP) also confirms that the characteristics of the functionalized peptide immobilized on polystyrene retains its ability to bind to its ligand. The presented strategies on the functionalization of polystyrene surfaces will offer alternatives to the possibilities of immobilizing biomolecules with excellent order- forming monolayers, due to their robust surface chemistries and validate a proof of concept for the development of highly efficient, sensitive, and stable future biosensors for food or water pollution monitoring.
Collapse
Affiliation(s)
- Ahmed M. Debela
- HSM, University Montpellier, MT Mines Ales, CNRS, IRD, Ales, 30119 Ales, France
| | - Catherine Gonzalez
- HSM, University Montpellier, MT Mines Ales, CNRS, IRD, Ales, 30119 Ales, France
| | - Monica Pucci
- LMGC, University Montpellier, IMT Mines Ales, CNRS, Ales, 30119 Ales, France
| | - Shemsia M. Hudie
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Ingrid Bazin
- HSM, University Montpellier, MT Mines Ales, CNRS, IRD, Ales, 30119 Ales, France
| |
Collapse
|
8
|
Abstract
![]()
Electronically interfacing with the
nervous system for the purposes
of health diagnostics and therapy, sports performance monitoring,
or device control has been a subject of intense academic and industrial
research for decades. This trend has only increased in recent years,
with numerous high-profile research initiatives and commercial endeavors.
An important research theme has emerged as a result, which is the
incorporation of semiconducting polymers in various devices that communicate
with the nervous system—from wearable brain-monitoring caps
to penetrating implantable microelectrodes. This has been driven by
the potential of this broad class of materials to improve the electrical
and mechanical properties of the tissue–device interface, along
with possibilities for increased biocompatibility. In this review
we first begin with a tutorial on neural interfacing, by reviewing
the basics of nervous system function, device physics, and neuroelectrophysiological
techniques and their demands, and finally we give a brief perspective
on how material improvements can address current deficiencies in this
system. The second part is a detailed review of past work on semiconducting
polymers, covering electrical properties, structure, synthesis, and
processing.
Collapse
Affiliation(s)
- Ivan B Dimov
- Electrical Engineering Division, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, U.K
| | - Maximilian Moser
- University of Oxford, Department of Chemistry, Oxford OX1 3TA, United Kingdom
| | - George G Malliaras
- Electrical Engineering Division, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, U.K
| | - Iain McCulloch
- University of Oxford, Department of Chemistry, Oxford OX1 3TA, United Kingdom.,King Abdullah University of Science and Technology (KAUST), KAUST Solar Center, Thuwal 23955-6900, Saudi Arabia
| |
Collapse
|
9
|
Nawaz A, Liu Q, Leong WL, Fairfull-Smith KE, Sonar P. Organic Electrochemical Transistors for In Vivo Bioelectronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2101874. [PMID: 34606146 DOI: 10.1002/adma.202101874] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 07/09/2021] [Indexed: 06/13/2023]
Abstract
Organic electrochemical transistors (OECTs) are presently a focus of intense research and hold great potential in expanding the horizons of the bioelectronics industry. The notable characteristics of OECTs, including their electrolyte-gating, which offers intimate interfacing with biological environments, and aqueous stability, make them particularly suitable to be operated within a living organism (in vivo). Unlike the existing in vivo bioelectronic devices, mostly based on rigid metal electrodes, OECTs form a soft mechanical contact with the biological milieu and ensure a high signal-to-noise ratio because of their powerful amplification capability. Such features make OECTs particularly desirable for a wide range of in vivo applications, including electrophysiological recordings, neuron stimulation, and neurotransmitter detection, and regulation of plant processes in vivo. In this review, a systematic compilation of the in vivo applications is presented that are addressed by the OECT technology. First, the operating mechanisms, and the device design and materials design principles of OECTs are examined, and then multiple examples are provided from the literature while identifying the unique device properties that enable the application progress. Finally, one critically looks at the future of the OECT technology for in vivo bioelectronic applications.
Collapse
Affiliation(s)
- Ali Nawaz
- Departamento de Física, Universidade Federal do Paraná, Caixa Postal 19044, Curitiba, PR, 81531-990, Brazil
- Center for Sensors and Devices, Bruno Kessler Foundation (FBK), Trento, 38123, Italy
| | - Qian Liu
- School of Chemistry and Physics, Queensland University of Technology (QUT), Brisbane, QLD, 4000, Australia
| | - Wei Lin Leong
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Kathryn E Fairfull-Smith
- School of Chemistry and Physics, Queensland University of Technology (QUT), Brisbane, QLD, 4000, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
| | - Prashant Sonar
- School of Chemistry and Physics, Queensland University of Technology (QUT), Brisbane, QLD, 4000, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
- Centre for Biomedical Technologies, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4000, Australia
| |
Collapse
|
10
|
Miras J, Liu C, Blomberg E, Thormann E, Vílchez S, Esquena J. pH-responsive chitosan nanofilms crosslinked with genipin. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126229] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
11
|
Stapleton JA, Hofferber EM, Meier J, Ramirez IA, Iverson NM. Single-Walled Carbon Nanotube Sensor Platform for the Study of Extracellular Analytes. ACS APPLIED NANO MATERIALS 2021; 4:33-42. [PMID: 34355133 PMCID: PMC8330402 DOI: 10.1021/acsanm.0c01998] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Single-walled carbon nanotubes (SWNT) are attractive targets for the formation of high-density sensor arrays. Their small size and high reactivity could allow for the spatial and temporal study of extracellular products to a degree which greatly surpasses contemporary sensors. However, current methods of SWNT immobilization produce a low fluorescence yield that requires a combination of high magnification, exposure time, and laser intensity to combat, thus limiting the sensor's applications. In this work, a platform for the immobilization of SWNT sensors with increased fluorescence yield, longevity, fluorescence distribution, and fast reaction times is developed.
Collapse
Affiliation(s)
- Joseph A Stapleton
- Department of Biological Systems Engineering, Institute of Agriculture and Natural Resources, College of Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0726, United States
| | - Eric M Hofferber
- Department of Biological Systems Engineering, Institute of Agriculture and Natural Resources, College of Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0726, United States
| | - Jakob Meier
- Department of Biological Systems Engineering, Institute of Agriculture and Natural Resources, College of Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0726, United States
| | - Ivon Acosta Ramirez
- Department of Biological Systems Engineering, Institute of Agriculture and Natural Resources, College of Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0726, United States
| | - Nicole M Iverson
- Department of Biological Systems Engineering, Institute of Agriculture and Natural Resources, College of Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0726, United States
| |
Collapse
|
12
|
Li Y, Zhang S, Hamad N, Kim K, Liu L, Lerond M, Cicoira F. Tailoring the Self-Healing Properties of Conducting Polymer Films. Macromol Biosci 2020; 20:e2000146. [PMID: 32567795 DOI: 10.1002/mabi.202000146] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/31/2020] [Indexed: 01/12/2023]
Abstract
The conducting polymer polyethylenedioxythiophene doped with polystyrene sulfonate (PEDOT:PSS) has received great attention in the field of wearable bioelectronics due to its tunable high electrical conductivity, air stability, ease of processability, biocompatibility, and recently discovered self-healing ability. It has been observed that blending additives with PEDOT:PSS or post-treatment permits the tailoring of intrinsic polymer properties, though their effects on the water-enabled self-healing property have not previously been established. Here, it is demonstrated that the water-enabled healing behavior of conducting polymers is decreased by crosslinkers or by acid post-treatment. Organic dopants of PEDOT have high water swelling ratios and lead to water-enabled healing, while inorganic dopants fail in the healing of PEDOT. The water-enabled healing of two isolated PEDOT:PSS squares with a 5 µm width gap and a thickness less than 1 µm is shown. This work will help pave the way for the further development of conducting polymer-based self-healable bioelectronics and flexible and stretchable electronics.
Collapse
Affiliation(s)
- Yang Li
- Department of Chemical Engineering, Polytechnique Montréal, Montréal, Québec, H3C3J7, Canada
| | - Shiming Zhang
- Center for Minimally Invasive Therapeutics, California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Natalie Hamad
- Department of Chemical Engineering, Polytechnique Montréal, Montréal, Québec, H3C3J7, Canada
| | - Kyoungoh Kim
- Department of Chemical Engineering, Polytechnique Montréal, Montréal, Québec, H3C3J7, Canada
| | - Leslie Liu
- Department of Chemical Engineering, Polytechnique Montréal, Montréal, Québec, H3C3J7, Canada
| | - Michael Lerond
- Department of Chemical Engineering, Polytechnique Montréal, Montréal, Québec, H3C3J7, Canada
| | - Fabio Cicoira
- Department of Chemical Engineering, Polytechnique Montréal, Montréal, Québec, H3C3J7, Canada
| |
Collapse
|
13
|
Huang J, Moghaddam SZ, Thormann E. Chitosan/Alginate Dialdehyde Multilayer Films with Modulated pH‐Responsiveness and Swelling. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.201900499] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Junhao Huang
- Department of Chemistry Technical University of Denmark 2800 Kgs. Lyngby Denmark
| | | | - Esben Thormann
- Department of Chemistry Technical University of Denmark 2800 Kgs. Lyngby Denmark
| |
Collapse
|
14
|
Goršak T, Makovec D, Javornik U, Belec B, Kralj S, Lisjak D. A functionalization strategy for the dispersion of permanently magnetic barium-hexaferrite nanoplatelets in complex biological media. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.04.051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
15
|
Borro BC, Bohr A, Bucciarelli S, Boetker JP, Foged C, Rantanen J, Malmsten M. Microfluidics-based self-assembly of peptide-loaded microgels: Effect of three dimensional (3D) printed micromixer design. J Colloid Interface Sci 2019; 538:559-568. [PMID: 30551068 DOI: 10.1016/j.jcis.2018.12.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 11/27/2018] [Accepted: 12/03/2018] [Indexed: 12/12/2022]
|
16
|
Huang J, Zajforoushan Moghaddam S, Thormann E. Structural Investigation of a Self-Cross-Linked Chitosan/Alginate Dialdehyde Multilayered Film with in Situ QCM-D and Spectroscopic Ellipsometry. ACS OMEGA 2019; 4:2019-2029. [PMID: 31459453 PMCID: PMC6648685 DOI: 10.1021/acsomega.8b03145] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Accepted: 01/10/2019] [Indexed: 05/30/2023]
Abstract
A chitosan/alginate dialdehyde multilayered film was fabricated using the layer-by-layer assembly method. Besides electrostatic interaction that promotes alternate adsorption of the oppositely charged polyelectrolytes, the Schiff base reaction between the amine groups on chitosan and the aldehyde groups on alginate dialdehyde provides a covalently cross-linked film, which after reduction by sodium cyanoborohydride is stable under both acidic and alkaline conditions. Moreover, the cross-linked film is responsive to changes in pH and addition of multivalent salts. The structural properties of the multilayered film such as thickness, refractive index, and water content were examined using simultaneous quartz crystal microbalance with dissipation monitoring and spectroscopic ellipsometry.
Collapse
Affiliation(s)
- Junhao Huang
- Department of Chemistry, Technical University of Denmark, Kemitorvet 206, 2800 Kgs. Lyngby, Denmark
| | | | - Esben Thormann
- Department of Chemistry, Technical University of Denmark, Kemitorvet 206, 2800 Kgs. Lyngby, Denmark
| |
Collapse
|
17
|
Nyström L, Al-Rammahi N, Malekkhaiat Häffner S, Strömstedt AA, Browning KL, Malmsten M. Avidin-Biotin Cross-Linked Microgel Multilayers as Carriers for Antimicrobial Peptides. Biomacromolecules 2018; 19:4691-4702. [PMID: 30427659 DOI: 10.1021/acs.biomac.8b01484] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Herein, we report on the formation of cross-linked antimicrobial peptide-loaded microgel multilayers. Poly(ethyl acrylate- co-methacrylic acid) microgels were synthesized and functionalized with biotin to enable the formation of microgel multilayers cross-linked with avidin. Microgel functionalization and avidin cross-linking were verified with infrared spectroscopy, dynamic light scattering, and z-potential measurements, while multilayer formation (up to four layers) was studied with null ellipsometry and quartz crystal microbalance with dissipation (QCM-D). Incorporation of the antimicrobial peptide KYE28 (KYEITTIHNLFRKLTHRLFRRNFGYTLR) into the microgel multilayers was achieved either in one shot after multilayer formation or through addition after each microgel layer deposition. The latter was found to strongly promote peptide incorporation. Further, antimicrobial properties of the peptide-loaded microgel multilayers against Escherichia coli were investigated and compared to those of a peptide-loaded microgel monolayer. Results showed a more pronounced suppression in bacterial viability in suspension for the microgel multilayers. Correspondingly, LIVE/DEAD staining showed promoted disruption of adhered bacteria for the KYE28-loaded multilayers. Taken together, cross-linked microgel multilayers thus show promise as high load surface coatings for antimicrobial peptides.
Collapse
Affiliation(s)
| | | | | | | | - Kathryn L Browning
- Department of Pharmacy , University of Copenhagen , DK-2100 Copenhagen , Denmark
| | - Martin Malmsten
- Department of Pharmacy , University of Copenhagen , DK-2100 Copenhagen , Denmark
| |
Collapse
|
18
|
Zeglio E, Inganäs O. Active Materials for Organic Electrochemical Transistors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1800941. [PMID: 30022545 DOI: 10.1002/adma.201800941] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 04/16/2018] [Indexed: 05/21/2023]
Abstract
The organic electrochemical transistor (OECT) is a device capable of simultaneously controlling the flow of electronic and ionic currents. This unique feature renders the OECT the perfect technology to interface man-made electronics, where signals are conveyed by electrons, with the world of the living, where information exchange relies on chemical signals. The function of the OECT is controlled by the properties of its core component, an organic conductor. Its chemical structure and interactions with electrolyte molecules at the nanoscale play a key role in regulating OECT operation and performance. Herein, the latest research progress in the design of active materials for OECTs is reviewed. Particular focus is given on the conducting polymers whose properties lead to advances in understanding the OECT working mechanism and improving the interface with biological systems for bioelectronics. The methods and device models that are developed to elucidate key relations between the structure of conducting polymer films and OECT function are discussed. Finally, the requirements of OECT design for in vivo applications are briefly outlined. The outcomes represent an important step toward the integration of organic electronic components with biological systems to record and modulate their functions.
Collapse
Affiliation(s)
- Erica Zeglio
- Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Olle Inganäs
- Department of Physics Chemistry and Biology, Linköping University, SE-58183, Linköping, Sweden
| |
Collapse
|
19
|
Terminal silanization of perfluoropolyether, polydimethylsiloxane, their block polymer and the self-assembled films on plasma-treated silicon surfaces. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0547-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
20
|
Membrane interactions of microgels as carriers of antimicrobial peptides. J Colloid Interface Sci 2018; 513:141-150. [DOI: 10.1016/j.jcis.2017.11.014] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 11/01/2017] [Accepted: 11/04/2017] [Indexed: 12/11/2022]
|
21
|
Schmidt MM, ElMahmoudy M, Malliaras GG, Inal S, Thelakkat M. Smaller Counter Cation for Higher Transconductance in Anionic Conjugated Polyelectrolytes. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700374] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Martina M. Schmidt
- Applied Functional Polymers; University of Bayreuth; Bayreuth 95440 Germany
| | - Mohammed ElMahmoudy
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; MOC; Gardanne 13541 France
| | - George G. Malliaras
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; MOC; Gardanne 13541 France
| | - Sahika Inal
- Biological and Environmental Science and Engineering; King Abdullah University of Science and Technology (KAUST); Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Mukundan Thelakkat
- Applied Functional Polymers; University of Bayreuth; Bayreuth 95440 Germany
| |
Collapse
|
22
|
Singh S, Datta A, Borro BC, Davoudi M, Schmidtchen A, Bhunia A, Malmsten M. Conformational Aspects of High Content Packing of Antimicrobial Peptides in Polymer Microgels. ACS APPLIED MATERIALS & INTERFACES 2017; 9:40094-40106. [PMID: 29087182 DOI: 10.1021/acsami.7b13714] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Successful use of microgels as delivery systems of antimicrobial peptides (AMPs) requires control of factors determining peptide loading and release to/from the microgels as well as of membrane interactions of both microgel particles and released peptides. Addressing these, we here investigate effects of microgel charge density and conformationally induced peptide amphiphilicity on AMP loading and release using detailed nuclear magnetic resonance (NMR) structural studies combined with ellipsometry, isothermal titration calorimetry, circular dichroism, and light scattering. In parallel, consequences of peptide loading and release for membrane interactions and antimicrobial effects were investigated. In doing so, poly(ethyl acrylate-co-methacrylic acid) microgels were found to incorporate the cationic AMPs EFK17a (EFKRIVQRIKDFLRNLV) and its partially d-amino acid-substituted variant EFK17da (E(dF)KR(dI)VQR(dI)KD(dF)LRNLV). Peptide incorporation was found to increase with increasing with microgel charge density and peptide amphiphilicity. After microgel incorporation, which appeared to occur preferentially in the microgel core, NMR showed EFK17a to form a helix with pronounced amphiphilicity, while EFK17da displayed a folded conformation, stabilized by a hydrophobic hub consisting of aromatic/aromatic and aliphatic/aromatic interactions, resulting in much lower amphiphilicity. Under wide ranges of peptide loading, the microgels displayed net negative z-potential. Such negatively charged microgels do not bind to, nor lyse, bacteria-mimicking membranes. Instead, membrane disruption in these systems is mediated largely by peptide release, which in turn is promoted at higher ionic strength and lower peptide amphiphilicity. Analogously, antimicrobial effects against Escherichia coli were found to be dictated by peptide release. Taken together, the findings show that peptide loading, packing, and release strongly affect the performance of microgels as AMP delivery systems, effects that can be tuned by (conformationally induced) peptide amphiphilicity and by microgel charge density.
Collapse
Affiliation(s)
- Shalini Singh
- Department of Pharmacy, Uppsala University , SE-75232 Uppsala, Sweden
| | - Aritreyee Datta
- Department of Biophysics, Bose Institute , P-1/12 CIT Scheme VII (M), Kolkata 700054, India
| | - Bruno C Borro
- Department of Pharmacy, University of Copenhagen , DK-2100 Copenhagen, Denmark
| | - Mina Davoudi
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University , SE-221 84 Lund, Sweden
| | - Artur Schmidtchen
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University , SE-221 84 Lund, Sweden
- Lee Kong Chian School of Medicine, Nanyang Technological University , 11 Mandalay Road, Singapore 308232, Singapore
- Wound Healing Centre, Bispebjerg University Hospital , DK-2100 Copenhagen, Denmark
| | - Anirban Bhunia
- Department of Biophysics, Bose Institute , P-1/12 CIT Scheme VII (M), Kolkata 700054, India
| | - Martin Malmsten
- Department of Pharmacy, Uppsala University , SE-75232 Uppsala, Sweden
- Department of Pharmacy, University of Copenhagen , DK-2100 Copenhagen, Denmark
| |
Collapse
|
23
|
Metzler S, Zankovych S, Rauchfuß F, Dittmar Y, Jandt K, Jandt KD, Settmacher U, Scheuerlein H. In vitro analysis of biopolymer coating with glycidoxypropyltrimethoxysilane on hernia meshes. J Biomed Mater Res B Appl Biomater 2017; 105:1083-1090. [PMID: 26991137 DOI: 10.1002/jbm.b.33653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 02/22/2016] [Indexed: 01/25/2023]
Abstract
Certain coatings may improve the biocompatibility of hernia meshes. The coating with self-assembled monolayers, such as glycidoxypropyltrimethoxysilane (GOPS) can also improve the materials characteristics of implants. This approach was not yet explored in hernia meshes. It was the aim of this work to clarify if and how hernia meshes with their three-dimensional structure can be coated with GOPS and with which technique this coating can be best characterized. Commercially available meshes made from polypropylene (PP), polyester (PE), and expanded polytetrafluorethylene (ePTFE) have been coated with GOPS. The coatings were analyzed via X-ray photoelectron spectroscopy (XPS), confocal laser scanning microscopy (CLSM), and cell proliferation test (mouse fibroblasts). Cell viability and cytotoxicity were tested by MTT test. With the GOPS surface modification, the adherence of mouse fibroblasts on polyester meshes and the proliferation on ePTFE meshes were increased compared to noncoated meshes. Both XPS and CLSM are limited in their applicability and validity due to the three-dimensional mesh structure while CLSM was overall more suitable. In the MTT test, no negative effects of the GOPS coating on the cells were detected after 24 h. The present results show that GOPS coating of hernia meshes is feasible and effective. GOPS coating can be achieved in a fast and cost-efficient way. Further investigations are necessary with respect to coating quality and adverse effects before such a coating may be used in the clinical routine. In conclusion, GOPS is a promising material that warrants further research as coating of medical implants. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 1083-1090, 2017.
Collapse
Affiliation(s)
- Steffen Metzler
- Department of Anesthesiology and Critical Care Medicine, Friedrich-Schiller-University of Jena, Jena, Germany
| | - Sergiy Zankovych
- Chair of Materials Science, Otto Schott Institute of Materials Research (OSIM), Friedrich-Schiller-University of Jena, Jena, Germany
| | - Falk Rauchfuß
- Department of General, Visceral and Vascular Surgery, Friedrich-Schiller-University of Jena, Jena, Germany
| | - Yves Dittmar
- Department of General, Visceral and Vascular Surgery, Friedrich-Schiller-University of Jena, Jena, Germany
| | - Karin Jandt
- Department of General, Visceral and Vascular Surgery, Friedrich-Schiller-University of Jena, Jena, Germany
| | - Klaus D Jandt
- Chair of Materials Science, Otto Schott Institute of Materials Research (OSIM), Friedrich-Schiller-University of Jena, Jena, Germany
| | - Utz Settmacher
- Department of General, Visceral and Vascular Surgery, Friedrich-Schiller-University of Jena, Jena, Germany
| | - Hubert Scheuerlein
- Department of General, Visceral and Vascular Surgery, Friedrich-Schiller-University of Jena, Jena, Germany
| |
Collapse
|
24
|
Nyström L, Nordström R, Bramhill J, Saunders BR, Álvarez-Asencio R, Rutland MW, Malmsten M. Factors Affecting Peptide Interactions with Surface-Bound Microgels. Biomacromolecules 2016; 17:669-78. [DOI: 10.1021/acs.biomac.5b01616] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Lina Nyström
- Department
of Pharmacy, Uppsala University, P.O. Box 580, SE-752 32 Uppsala, Sweden
| | - Randi Nordström
- Department
of Pharmacy, Uppsala University, P.O. Box 580, SE-752 32 Uppsala, Sweden
| | - Jane Bramhill
- School
of Materials, The University of Manchester, MSS Tower, Manchester, M13 9PL, United Kingdom
| | - Brian R. Saunders
- School
of Materials, The University of Manchester, MSS Tower, Manchester, M13 9PL, United Kingdom
| | - Rubén Álvarez-Asencio
- Department
of Surface and Corrosion Science, School of Chemical Science and Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- Institute
for Advanced Studies, IMDEA Nanoscience, 28049 Madrid, Spain
| | - Mark W. Rutland
- Department
of Surface and Corrosion Science, School of Chemical Science and Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- SP Technical Research Institute of Sweden, SP Chemistry,
Materials and Surfaces, SE-114
86 Stockholm, Sweden
| | - Martin Malmsten
- Department
of Pharmacy, Uppsala University, P.O. Box 580, SE-752 32 Uppsala, Sweden
| |
Collapse
|
25
|
Synthesis, characterization and sorption capacities toward organic pollutants of new β-cyclodextrin modified zeolite derivatives. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.04.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
26
|
Berezhetska O, Liberelle B, De Crescenzo G, Cicoira F. A simple approach for protein covalent grafting on conducting polymer films. J Mater Chem B 2015; 3:5087-5094. [DOI: 10.1039/c5tb00373c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By mixing a PEDOT:PSS suspension with the modified biopolymer carboxymethylated dextran (CMD), we obtain conductive films displaying carboxyl (–COOH) groups allowing for covalent grafting of proteins via amide bonds.
Collapse
Affiliation(s)
- Olga Berezhetska
- Department of Chemical Engineering
- Polytechnique Montreal. P.O. Box 6079
- Montréal (QC)
- Canada H3C 3A7
| | - Benoît Liberelle
- Department of Chemical Engineering
- Polytechnique Montreal. P.O. Box 6079
- Montréal (QC)
- Canada H3C 3A7
| | - Gregory De Crescenzo
- Department of Chemical Engineering
- Polytechnique Montreal. P.O. Box 6079
- Montréal (QC)
- Canada H3C 3A7
| | - Fabio Cicoira
- Department of Chemical Engineering
- Polytechnique Montreal. P.O. Box 6079
- Montréal (QC)
- Canada H3C 3A7
| |
Collapse
|
27
|
Liu C, Thormann E, Claesson PM, Tyrode E. Surface grafted chitosan gels. Part I. Molecular insight into the formation of chitosan and poly(acrylic acid) multilayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:8866-8877. [PMID: 25007398 DOI: 10.1021/la5013186] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Composite polyelectrolyte multilayers of chitosan and low molecular weight poly(acrylic acid) (PAA) have been assembled by sequential adsorption as a first step toward building a surface anchored chitosan gel. Silane chemistry was used to graft the first chitosan layer to prevent film detachment and decomposition. The assembly process is characterized by nonlinear growth behavior, with different adsorption kinetics for chitosan and PAA. In situ analysis of the multilayer by means of surface sensitive total internal reflection Raman (TIRR) spectroscopy, combined with target factor analysis of the spectra, provided information regarding composition, including water content, and ionization state of weak acidic and basic groups present in the thin composite film. Low molecular weight PAA, mainly in its protonated form, diffuses into and out of the composite film during adsorption and rinsing steps. The higher molecular weight chitosan shows a similar behavior, although to a much lower extent. Our data demonstrate that the charged monomeric units of chitosan are mainly compensated by carboxylate ions from PAA. Furthermore, the morphology and mechanical properties of the multilayers were investigated in situ using atomic force microscopy operating in PeakForce tapping mode. The multilayer consists of islands that grow in lateral dimension and height during the build-up process, leading to close to exponentially increasing roughness with deposition number. Both diffusion in and out of at least one of the two components (PAA) and the island-like morphology contribute to the nonlinear growth of chitosan/PAA multilayers.
Collapse
Affiliation(s)
- Chao Liu
- School of Chemical Science and Engineering, Department of Chemistry, Surface and Corrosion Science, KTH Royal Institute of Technology , Drottning Kristinas väg 51, SE-100 44 Stockholm, Sweden
| | | | | | | |
Collapse
|
28
|
Nietzold C, Dietrich PM, Ivanov-Pankov S, Lippitz A, Gross T, Weigel W, Unger WES. Functional group quantification on epoxy surfaces by chemical derivatization (CD)-XPS. SURF INTERFACE ANAL 2014. [DOI: 10.1002/sia.5433] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Carolin Nietzold
- BAM Federal Institute for Materials Research and Testing; Unter den Eichen 87 12205 Berlin Germany
| | - Paul M. Dietrich
- BAM Federal Institute for Materials Research and Testing; Unter den Eichen 87 12205 Berlin Germany
| | | | - Andreas Lippitz
- BAM Federal Institute for Materials Research and Testing; Unter den Eichen 87 12205 Berlin Germany
| | - Thomas Gross
- BAM Federal Institute for Materials Research and Testing; Unter den Eichen 87 12205 Berlin Germany
| | | | - Wolfgang E. S. Unger
- BAM Federal Institute for Materials Research and Testing; Unter den Eichen 87 12205 Berlin Germany
| |
Collapse
|
29
|
Tribology and hydrophobicity of a biocompatible GPTMS/PFPE coating on Ti6Al4V surfaces. J Mech Behav Biomed Mater 2012; 15:103-11. [DOI: 10.1016/j.jmbbm.2012.06.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 06/22/2012] [Accepted: 06/26/2012] [Indexed: 11/20/2022]
|
30
|
Knorr DB, Jaye C, Fischer DA, Shoch AB, Lenhart JL. Manipulation of interfacial amine density in epoxy-amine systems as studied by near-edge X-ray absorption fine structure (NEXAFS). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:15294-15304. [PMID: 23013540 DOI: 10.1021/la3033786] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this work, we investigate the ability to tune the quantity of surface amine functional groups in the interfacial region of epoxy-diamine composites using NEXAFS, a technique that is extremely sensitive to surface composition. Thereby, we employ a model surface (silicon wafer with the native oxide present) and, after deposition of an epoxy functionalized silane, we immersed the wafers in various diamines, followed by reaction with a diepoxy acting as a molecular probe. These results show that the number of available surface amines depends on the diamine chosen, wherein smaller molecular weight diamines provide more reaction sites. Subsequent experiments with mixtures of diamines undergoing competitive adsorption show that the amine quantity can be tailored by choice of the diamine mixture. Further experiments of diamine treated 3-(glycidoxypropyl) trimethoxysilane layers in a reacting epoxy/diamine showed that the surface reaction site density differences observed for adsorption experiments persisted in the reacting epoxy, implying that the surface reaction rate (and by extension, the surface amine concentration) dictate interfacial cross-link density up to the point of gelation.
Collapse
Affiliation(s)
- Daniel B Knorr
- U.S. Army Research Laboratory , Aberdeen Proving Ground, Maryland, United States
| | | | | | | | | |
Collapse
|
31
|
Escorihuela J, Bañuls MJ, Puchades R, Maquieira Á. Development of Oligonucleotide Microarrays onto Si-Based Surfaces via Thioether Linkage Mediated by UV Irradiation. Bioconjug Chem 2012; 23:2121-8. [DOI: 10.1021/bc300333a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Jorge Escorihuela
- Centro de Reconocimiento
Molecular y Desarrollo Tecnológico,
Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia,
Spain
| | - María-José Bañuls
- Centro de Reconocimiento
Molecular y Desarrollo Tecnológico,
Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia,
Spain
| | - Rosa Puchades
- Centro de Reconocimiento
Molecular y Desarrollo Tecnológico,
Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia,
Spain
| | - Ángel Maquieira
- Centro de Reconocimiento
Molecular y Desarrollo Tecnológico,
Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia,
Spain
| |
Collapse
|
32
|
Gopinath SCB, Awazu K, Fujimaki M, Shimizu K, Mizutani W, Tsukagoshi K. Surface functionalization chemistries on highly sensitive silica-based sensor chips. Analyst 2012; 137:3520-7. [PMID: 22705905 DOI: 10.1039/c2an35159e] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The surfaces of silica-based sensor chips, designed for evanescent-field-coupled waveguide-mode sensors, were functionalized using various surface chemistries. The immobilization of molecular entities on the functionalized silica surfaces was monitored using various microscopic techniques (scanning electron, fluorescence, and atomic force microscopies). Further, gold nanoparticle-based signal enhancement analyses were performed with protein conjugation on different functionalized surfaces using a waveguide-mode sensor. Based on these analyses, the sensor surfaces modified with glutaraldehyde (Glu) and carbonyldiimidazole were found to be good for molecules of different sizes. In addition, it can be inferred that the Glu-modified surface may be suitable for small molecules with diameters around 5 nm owing to its surface roughness. The modified surface with carbonyldiimidazole is suitable for the direct immobilization of larger molecules especially for biomolecular assemblies without intermediate chemical modifications.
Collapse
Affiliation(s)
- Subash C B Gopinath
- Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
| | | | | | | | | | | |
Collapse
|
33
|
Noor MO, Krull UJ. Microfluidics for the deposition of density gradients of immobilized oligonucleotide probes; developing surfaces that offer spatial control of the stringency of DNA hybridization. Anal Chim Acta 2011; 708:1-10. [DOI: 10.1016/j.aca.2011.10.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2011] [Revised: 09/30/2011] [Accepted: 10/03/2011] [Indexed: 01/06/2023]
|
34
|
Funk C, Dietrich PM, Gross T, Min H, Unger WES, Weigel W. Epoxy-functionalized surfaces for microarray applications: surface chemical analysis and fluorescence labeling of surface species. SURF INTERFACE ANAL 2011. [DOI: 10.1002/sia.3856] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Christian Funk
- Institute of Chemistry; Humboldt University Berlin; Brook-Taylor Str. 2, D-12489 Berlin Germany
| | - Paul M. Dietrich
- BAM Federal Institute for Materials Research and Testing, Surface and Thin Film Analysis WG; D-12203 Berlin Germany
| | - Thomas Gross
- BAM Federal Institute for Materials Research and Testing, Surface and Thin Film Analysis WG; D-12203 Berlin Germany
| | - Hyegeun Min
- BAM Federal Institute for Materials Research and Testing, Surface and Thin Film Analysis WG; D-12203 Berlin Germany
| | - Wolfgang E. S. Unger
- BAM Federal Institute for Materials Research and Testing, Surface and Thin Film Analysis WG; D-12203 Berlin Germany
| | - Wilfried Weigel
- Institute of Chemistry; Humboldt University Berlin; Brook-Taylor Str. 2, D-12489 Berlin Germany
- Scienion AG; Volmerstr. 2, D-12489 Berlin Germany
| |
Collapse
|
35
|
Kaftan O, Tumbiolo S, Dubreuil F, Auzély-Velty R, Fery A, Papastavrou G. Probing Multivalent Host–Guest Interactions between Modified Polymer Layers by Direct Force Measurement. J Phys Chem B 2011; 115:7726-35. [DOI: 10.1021/jp110939c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Oznur Kaftan
- Department of Physical Chemistry II, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
| | - Simonetta Tumbiolo
- Department of Inorganic, Analytical, and Applied Chemistry, University of Geneva, Sciences II, 30, Quai Ernest-Ansermet 1211 Geneva 4, Switzerland
| | - Frédéric Dubreuil
- Centre de Recherches sur les Macromolécules Végétales, CNRS, affiliated with Université Joseph Fourier, BP 53, 38041 Grenoble Cedex 9, France
| | - Rachel Auzély-Velty
- Centre de Recherches sur les Macromolécules Végétales, CNRS, affiliated with Université Joseph Fourier, BP 53, 38041 Grenoble Cedex 9, France
| | - Andreas Fery
- Department of Physical Chemistry II, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
| | - Georg Papastavrou
- Department of Physical Chemistry II, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
| |
Collapse
|
36
|
Jradi K, Laour D, Daneault C, Chabot B. Control of the chemical and physical behaviour of silicon surfaces for enhancing the transition from hydrophilic to superhydrophobic surfaces. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2010.10.050] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
37
|
Strelau KK, Kretschmer R, Möller R, Fritzsche W, Popp J. SERS as tool for the analysis of DNA-chips in a microfluidic platform. Anal Bioanal Chem 2009; 396:1381-4. [DOI: 10.1007/s00216-009-3374-8] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2009] [Revised: 11/25/2009] [Accepted: 12/02/2009] [Indexed: 11/29/2022]
|
38
|
Schüler T, Kretschmer R, Jessing S, Urban M, Fritzsche W, Möller R, Popp J. A disposable and cost efficient microfluidic device for the rapid chip-based electrical detection of DNA. Biosens Bioelectron 2009; 25:15-21. [DOI: 10.1016/j.bios.2009.05.040] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2009] [Revised: 05/19/2009] [Accepted: 05/21/2009] [Indexed: 10/20/2022]
|
39
|
Dinh DH, Vellutini L, Bennetau B, Dejous C, Rebière D, Pascal E, Moynet D, Belin C, Desbat B, Labrugère C, Pillot JP. Route to smooth silica-based surfaces decorated with novel self-assembled monolayers (SAMs) containing glycidyl-terminated very long hydrocarbon chains. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:5526-5535. [PMID: 19378931 DOI: 10.1021/la804088d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Novel glycidyl-terminated organosilicon coupling agents possessing a trialkoxysilyl head group and a very long hydrocarbon chain (C22) were synthesized. Their ability to afford densely packed self-assembled monolayers (SAMs) grafted on silica-based surfaces was investigated. Transmission FT-IR spectra showed that the most regular films were obtained by using trichloracetic acid as the catalyst (10 M%). Atomic force microscopy (AFM) and optical ellipsometry were consistent with well ordered monolayers exhibiting a marked decrease of the surface roughness. Epifluorescence microscopy revealed that these SAMs possessed a better surface reactivity than monolayers obtained with the commercially available (3-glycidoxypropyl) trimethoxysilane (GPTS) upon grafting of a fluorescent probe (dansylcadaverin). Moreover, direct attachment of fluorescent antibodies (RAG-TRITC) through covalent binding led to higher mean fluorescence intensities, showing that these new SAMs possess high potential for the immobilization of biological molecules.
Collapse
Affiliation(s)
- Duy Hai Dinh
- Université de Bordeaux, Institut des Sciences Moléculaires, UMR 5255-CNRS, 351 cours de la Libération, 33405 Talence Cedex, France
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Péter M, Schüler T, Furthner F, Rensing PA, van Heck GT, Schoo HFM, Möller R, Fritzsche W, van Breemen AJJM, Meinders ER. Flexible biochips for detection of biomolecules. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:5384-5390. [PMID: 19326940 DOI: 10.1021/la8037457] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Miniaturization of biosensors is envisaged by the development of biochips consisting of parallel microarray patterns of binding sites on rigid substrates, such as glass or silicon. Thin plastic substrates are promising flexible alternatives because of the possibility for large-area roll-to-roll manufacturing of disposable chips at lower costs. Mature optical lithography technology faces many challenges when used to pattern flexible foils as a result of the substrate instabilities, especially at higher temperatures. In this work, flexible biochips with gold electrode patterns were fabricated on thin polyethylene naphthalate (PEN) foils using photolithography. The gold electrode structures of the chips were manufactured by direct metal patterning and by lift-off processing. Both methodologies resulted in well-defined electrode patterns as concluded from optical microscopy and scanning electron microscopy (SEM) characterization and resistance measurements. The biochips were successfully employed for the electrical and optical detection of DNA molecules. The DNA detection was based on the immobilization of capture DNA between electrode gaps, hybridization with biotin-labeled target DNA, and enzymatic silver enhancement.
Collapse
Affiliation(s)
- Mária Péter
- Holst Centre/Netherlands Institute for Applied Scientific Research (TNO), High Tech Campus 31, Postbus 8550, 5605 KN Eindhoven, The Netherlands.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Wong AKY, Krull UJ. Surfaces for tuning of oligonucleotide biosensing selectivity based on surface-initiated atom transfer radical polymerization on glass and silicon substrates. Anal Chim Acta 2009; 639:1-12. [PMID: 19345752 DOI: 10.1016/j.aca.2009.03.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2008] [Revised: 03/03/2009] [Accepted: 03/03/2009] [Indexed: 11/19/2022]
Abstract
Covalently immobilized mixed films of oligonucleotide and oligomer components on glass and silicon surfaces are reported. This work has investigated how such films can improve selectivity for the detection of multiple base-pair mismatches. The intention was to introduce a "matrix isolation" effect on oligonucleotide probe molecules by surrounding the probes with oligomers, thereby reducing oligonucleotide-to-oligonucleotide and/or oligonucleotide-to-surface interactions. Thiol-functionalized oligonucleotide was coupled onto (3-aminopropyl)trimethoxysilane (APTMS) via a heterobifunctional linker, succinimidyl 4-[N-maleimidomethyl]cyclohexane-1-carboxylate (sulfo-SMCC). Using a variety of monomers such as 2-hydroxyethyl methacrylate (HEMA), oligomers were grown by surface-initiated atom transfer radical polymerization (ATRP) from a bromoisobutyryl NHS ester initiator which was immobilized onto APTMS sites that coated glass and oxidized silicon substrates. Various surface modification steps on silicon substrates were characterized by ellipsometry, wettability, atomic force microscopy, X-ray photoelectron spectroscopy, and time-of-flight secondary ion mass spectrometry. Polymerized HEMA (PHEMA) in mixture with oligonucleotide probes was evaluated for fluorescence transduction of hybridization. The presence of PHEMA was found to provide a sharper melt curve for hybrids containing both fully complementary and three base-pair mismatched targets, and this surface derivatization also minimized non-selective adsorption. The maximum increase in slope was improvement by a factor of 3-fold. An increase of up to 30% in difference of melting temperatures between fully complementary and 3 base-pair mismatched targets was achieved using PHEMA. The results suggest that the presence of oligomers dispersed among DNA hybrids can improve selectivity through what is believed to be a reduction of dispersity of interactions of probes with targets, and probes within their local environment at a surface.
Collapse
Affiliation(s)
- April K Y Wong
- Chemical Sensors Group, University of Toronto Mississauga, 3359 Mississauga Rd. N., Mississauga, ON, Canada L5L 1C6
| | | |
Collapse
|
42
|
Goddard JM, Erickson D. Bioconjugation techniques for microfluidic biosensors. Anal Bioanal Chem 2009; 394:469-79. [PMID: 19280179 DOI: 10.1007/s00216-009-2731-y] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2008] [Revised: 02/19/2009] [Accepted: 02/23/2009] [Indexed: 10/21/2022]
Abstract
We have evaluated five bioconjugation chemistries for immobilizing DNA onto silicon substrates for microfluidic biosensing applications. Conjugation by organosilanes is compared with linkage by carbonyldiimidazole (CDI) activation of silanol groups and utilization of dendrimers. Chemistries were compared in terms of immobilization and hybridization density, stability under microfluidic flow-induced shear stress, and stability after extended storage in aqueous solutions. Conjugation by dendrimer tether provided the greatest hybridization efficiency; however, conjugation by aminosilane treated with glutaraldehyde yielded the greatest immobilization and hybridization densities, as well as enhanced stability to both shear stress and extended storage in an aqueous environment. Direct linkage by CDI activation provided sufficient immobilization and hybridization density and represents a novel DNA bioconjugation strategy. Although these chemistries were evaluated for use in microfluidic biosensors, the results provide meaningful insight to a number of nanobiotechnology applications for which microfluidic devices require surface biofunctionalization, for example vascular prostheses and implanted devices.
Collapse
Affiliation(s)
- Julie M Goddard
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853, USA.
| | | |
Collapse
|
43
|
Gopinath SCB, Awazu K, Fujimaki M, Sugimoto K, Ohki Y, Komatsubara T, Tominaga J, Kumar PKR. Monitoring surface-assisted biomolecular assembly by means of evanescent-field-coupled waveguide-mode nanobiosensors. Anal Bioanal Chem 2009; 394:481-8. [DOI: 10.1007/s00216-009-2721-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2008] [Revised: 02/13/2009] [Accepted: 02/17/2009] [Indexed: 11/29/2022]
|
44
|
Screen printing as cost-efficient fabrication method for DNA-chips with electrical readout for detection of viral DNA. Biosens Bioelectron 2009; 24:2077-84. [DOI: 10.1016/j.bios.2008.10.028] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2008] [Revised: 10/23/2008] [Accepted: 10/24/2008] [Indexed: 11/20/2022]
|
45
|
Application of highly sensitive, modified glass substrate-based immuno-PCR on the early detection of nasopharyngeal carcinoma. Biomaterials 2008; 29:4447-54. [DOI: 10.1016/j.biomaterials.2008.07.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2008] [Accepted: 07/10/2008] [Indexed: 11/23/2022]
|
46
|
Giaume D, Poggi M, Casanova D, Mialon G, Lahlil K, Alexandrou A, Gacoin T, Boilot JP. Organic functionalization of luminescent oxide nanoparticles toward their application as biological probes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:11018-11026. [PMID: 18771302 DOI: 10.1021/la8015468] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Luminescent inorganic nanoparticles are now widely studied for their applications as biological probes for in vitro or in vivo experiments. The functionalization of the particles is a key step toward these applications, since it determines the control of the coupling between the particles and the biological species of interest. This paper is devoted to the case of rare earth doped oxide nanoparticles and their functionalization through their surface encapsulation with a functional polysiloxane shell. The first step of the process is the adsorption of silicate ions that will act as a primary layer for the further surface polymerization of the silane, either aminopropyltriethoxysilane (APTES) or glycidoxypropyltrimethoxysilane (GPTMS). The amino- or epoxy- functions born by the silane allow the versatile coupling of the particles with bio-organic species following the chemistry that is commonly used in biochips. Special attention is paid to the careful characterization of each step of the functionalization process, especially concerning the average number of organic functions that are available for the final coupling of the particles with proteins. The surface density of amino or epoxy functions was found to be 0.4 and 1.9 functions per square nanometer for GPTMS and APTES silanized particles, respectively. An example of application of the amino-functionalized particles is given for the coupling with alpha-bungarotoxins. The average number (up to 8) and the distribution of the number of proteins per particle are given, showing the potentialities of the functionalization process for the labeling of biological species.
Collapse
Affiliation(s)
- Domitille Giaume
- Laboratoire de Physique de la Matière Condensée, Ecole Polytechnique, CNRS, Route de Saclay, 91128 Palaiseau, France
| | | | | | | | | | | | | | | |
Collapse
|
47
|
Ibáñez AJ, Schüler T, Möller R, Fritzsche W, Saluz HP, Svatoš A. DNA Detection Using a Triple Readout Optical/AFM/MALDI Planar Microwell Plastic Chip. Anal Chem 2008; 80:5892-8. [DOI: 10.1021/ac800426v] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alfredo J. Ibáñez
- Mass Spectrometry Research Group, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, 07745, Jena, Germany, Jenaer Biochip Initiative, Institute for Physical Chemistry, Friedrich Schiller University, Helmholtzweg 4, 07743 Jena, Germany, Institute of Photonic Technology, Albert-Einstein-Strasse 9, 07745, Jena, Germany, and Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Thomas Schüler
- Mass Spectrometry Research Group, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, 07745, Jena, Germany, Jenaer Biochip Initiative, Institute for Physical Chemistry, Friedrich Schiller University, Helmholtzweg 4, 07743 Jena, Germany, Institute of Photonic Technology, Albert-Einstein-Strasse 9, 07745, Jena, Germany, and Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Robert Möller
- Mass Spectrometry Research Group, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, 07745, Jena, Germany, Jenaer Biochip Initiative, Institute for Physical Chemistry, Friedrich Schiller University, Helmholtzweg 4, 07743 Jena, Germany, Institute of Photonic Technology, Albert-Einstein-Strasse 9, 07745, Jena, Germany, and Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Wolfgang Fritzsche
- Mass Spectrometry Research Group, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, 07745, Jena, Germany, Jenaer Biochip Initiative, Institute for Physical Chemistry, Friedrich Schiller University, Helmholtzweg 4, 07743 Jena, Germany, Institute of Photonic Technology, Albert-Einstein-Strasse 9, 07745, Jena, Germany, and Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Hans-Peter Saluz
- Mass Spectrometry Research Group, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, 07745, Jena, Germany, Jenaer Biochip Initiative, Institute for Physical Chemistry, Friedrich Schiller University, Helmholtzweg 4, 07743 Jena, Germany, Institute of Photonic Technology, Albert-Einstein-Strasse 9, 07745, Jena, Germany, and Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Aleš Svatoš
- Mass Spectrometry Research Group, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, 07745, Jena, Germany, Jenaer Biochip Initiative, Institute for Physical Chemistry, Friedrich Schiller University, Helmholtzweg 4, 07743 Jena, Germany, Institute of Photonic Technology, Albert-Einstein-Strasse 9, 07745, Jena, Germany, and Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Beutenbergstrasse 11a, 07745, Jena, Germany
| |
Collapse
|
48
|
Hering KK, Möller R, Fritzsche W, Popp J. Microarray-Based Detection of Dye-Labeled DNA by SERRS Using Particles Formed by Enzymatic Silver Deposition. Chemphyschem 2008; 9:867-72. [PMID: 18386261 DOI: 10.1002/cphc.200700591] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
49
|
Ye Y, Chen L, Krull UJ. Light Induced Surface Corrosion of Gallium Arsenide for Immobilization of Oligonucleotide Probes. ANAL LETT 2008. [DOI: 10.1080/00032710701792901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
50
|
Bui MPN, Baek TJ, Seong GH. Gold nanoparticle aggregation-based highly sensitive DNA detection using atomic force microscopy. Anal Bioanal Chem 2007; 388:1185-90. [PMID: 17534606 DOI: 10.1007/s00216-007-1354-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2007] [Revised: 05/03/2007] [Accepted: 05/08/2007] [Indexed: 11/30/2022]
Abstract
The potential ability of atomic force microscopy (AFM) as a quantitative bioanalysis tool is demonstrated by using gold nanoparticles as a size enhancer in a DNA hybridization reaction. Two sets of probe DNA were functionalized on gold nanoparticles and sandwich hybridization occurred between two probe DNAs and target DNA, resulting in aggregation of the nanoparticles. At high concentrations of target DNA in the range from 100 nM to 10 microM, the aggregation of gold nanoparticles was determined by monitoring the color change with UV-vis spectroscopy. The absorption spectra broadened after the exposure of DNA-gold nanoparticles to target DNA and a new absorption band at wavelengths >600 nm was observed. However, no differences were observed in the absorption spectra of the gold nanoparticles at low concentrations of target DNA (10 pM to 10 nM) due to insufficient aggregation. AFM was used as a biosensing tool over this range of target DNA concentrations in order to monitor the aggregation of gold nanoparticles and to quantify the concentration of target DNA. Based on the AFM images, we successfully evaluated particle number and size at low concentrations of target DNA. The calibration curve obtained when mean particle aggregate diameter was plotted against concentration of target DNA showed good linearity over the range 10 pM to 10 nM, the working range for quantitative target DNA analysis. This AFM-based DNA detection technique was three orders of magnitude more sensitive than a DNA detection method based on UV-vis spectroscopy.
Collapse
|