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Ma Y, Yang HM, Chen ZH, Li YN, Li JF, Sun XL, Wang XY, Tang Y. Highly branched polymethacrylates prepared efficiently: brancher-directed topology and application performance. Polym Chem 2021. [DOI: 10.1039/d1py01273h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of highly oil-soluble and branched polymethacrylates are prepared via ATRcP of 2-ethylhexyl methacrylate and divinyl brancher with high efficiency, focusing on the brancher effect on the structure-performance of the polymers.
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Affiliation(s)
- Yang Ma
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai 201210, China
- University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Beijing 100049, China
| | - Hong-Mei Yang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Zhi-Hao Chen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Ya-Ning Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai 201210, China
- University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Beijing 100049, China
| | - Jun-Fang Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Xiu-Li Sun
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Xiao-Yan Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Yong Tang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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3
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Cosimbescu L, Robinson JW, Page JP. Polymer Architecture: Does It Influence Shear Stability? Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02609] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lelia Cosimbescu
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Joshua W. Robinson
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Jordan P. Page
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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Wasserberg D, Zhang X, Breukers C, Connell BJ, Baeten E, van den Blink D, S O L À Benet È, Bloem AC, Nijhuis M, Wensing AMJ, Terstappen LWMM, Beck M. All-printed cell counting chambers with on-chip sample preparation for point-of-care CD4 counting. Biosens Bioelectron 2018; 117:659-668. [PMID: 30005387 DOI: 10.1016/j.bios.2018.07.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 06/27/2018] [Accepted: 07/01/2018] [Indexed: 12/19/2022]
Abstract
We demonstrate the fabrication of fully printed microfluidic CD4 counting chips with complete on-chip sample preparation and their applicability as a CD4 counting assay using samples from healthy donors and HIV-infected patients. CD4 counting in low-income and resource-limited point-of-care settings is only practical and affordable, if disposable tests can be fabricated at very low cost and all manual sample preparation is avoided, while operation as well as quantification is fully automated and independent of the skills of the operator. Here, we show the successful use of (inkjet) printing methods both to fabricate microfluidic cell counting chambers with controlled heights, and to deposit hydrogel layers with embedded fluorophore-labeled antibodies for on-chip sample preparation and reagent storage. The maturation process of gelatin after deposition prevents antibody wash-off during blood inflow very well, while temperature-controlled dissolution of the matrix ensures complete antibody release for immunostaining after the inflow has stopped. The prevention of antibody wash-off together with the subsequent complete antibody release guarantees a homogeneous fluorescence background, making rapid and accurate CD4 counting possible. We show the successful application of our fully printed CD4 counting chips on samples from healthy donors as well as from HIV-infected patients and find an excellent agreement between results from our method and from the gold standard, flow cytometry, in both cases.
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Affiliation(s)
- Dorothee Wasserberg
- Medical Cell Biophysics, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, PO Box 217, 7500 AE Enschede, The Netherlands
| | - Xichen Zhang
- Medical Cell Biophysics, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, PO Box 217, 7500 AE Enschede, The Netherlands
| | - Christian Breukers
- Medical Cell Biophysics, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, PO Box 217, 7500 AE Enschede, The Netherlands
| | - Bridgette J Connell
- University Medical Center Utrecht, Department of Medical Microbiology, Virology, Heidelberglaan 100, 3584CX Utrecht, The Netherlands
| | - Ellen Baeten
- University Medical Center Utrecht, Laboratory of Translational Immunology, Section Diagnostics, Heidelberglaan 100, 3584CX Utrecht, The Netherlands
| | - Dorine van den Blink
- University Medical Center Utrecht, Laboratory of Translational Immunology, Section Diagnostics, Heidelberglaan 100, 3584CX Utrecht, The Netherlands
| | - Èlia S O L À Benet
- Medical Cell Biophysics, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, PO Box 217, 7500 AE Enschede, The Netherlands
| | - Andries C Bloem
- University Medical Center Utrecht, Laboratory of Translational Immunology, Section Diagnostics, Heidelberglaan 100, 3584CX Utrecht, The Netherlands
| | - Monique Nijhuis
- University Medical Center Utrecht, Department of Medical Microbiology, Virology, Heidelberglaan 100, 3584CX Utrecht, The Netherlands
| | - Annemarie M J Wensing
- University Medical Center Utrecht, Department of Medical Microbiology, Virology, Heidelberglaan 100, 3584CX Utrecht, The Netherlands
| | - Leon W M M Terstappen
- Medical Cell Biophysics, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, PO Box 217, 7500 AE Enschede, The Netherlands
| | - Markus Beck
- Medical Cell Biophysics, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, PO Box 217, 7500 AE Enschede, The Netherlands.
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McManus D, Vranic S, Withers F, Sanchez-Romaguera V, Macucci M, Yang H, Sorrentino R, Parvez K, Son SK, Iannaccone G, Kostarelos K, Fiori G, Casiraghi C. Water-based and biocompatible 2D crystal inks for all-inkjet-printed heterostructures. NATURE NANOTECHNOLOGY 2017; 12:343-350. [PMID: 28135260 DOI: 10.1038/nnano.2016.281] [Citation(s) in RCA: 206] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 11/24/2016] [Indexed: 05/19/2023]
Abstract
Exploiting the properties of two-dimensional crystals requires a mass production method able to produce heterostructures of arbitrary complexity on any substrate. Solution processing of graphene allows simple and low-cost techniques such as inkjet printing to be used for device fabrication. However, the available printable formulations are still far from ideal as they are either based on toxic solvents, have low concentration, or require time-consuming and expensive processing. In addition, none is suitable for thin-film heterostructure fabrication due to the re-mixing of different two-dimensional crystals leading to uncontrolled interfaces and poor device performance. Here, we show a general approach to achieve inkjet-printable, water-based, two-dimensional crystal formulations, which also provide optimal film formation for multi-stack fabrication. We show examples of all-inkjet-printed heterostructures, such as large-area arrays of photosensors on plastic and paper and programmable logic memory devices. Finally, in vitro dose-escalation cytotoxicity assays confirm the biocompatibility of the inks, extending their possible use to biomedical applications.
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Affiliation(s)
- Daryl McManus
- School of Chemistry, University of Manchester, Manchester M13 9PL, UK
| | - Sandra Vranic
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, AV Hill Building, University of Manchester, Manchester M13 9PT, UK
| | - Freddie Withers
- School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
| | - Veronica Sanchez-Romaguera
- Manchester Enterprise Centre, Alliance Manchester Business School, University of Manchester, Manchester M13 9SS, UK
| | - Massimo Macucci
- Dipartimento di Ingegneria dell'Informazione, Università di Pisa, Pisa, Italy
| | - Huafeng Yang
- School of Chemistry, University of Manchester, Manchester M13 9PL, UK
| | | | - Khaled Parvez
- School of Chemistry, University of Manchester, Manchester M13 9PL, UK
| | - Seok-Kyun Son
- School of Chemistry, University of Manchester, Manchester M13 9PL, UK
| | - Giuseppe Iannaccone
- Dipartimento di Ingegneria dell'Informazione, Università di Pisa, Pisa, Italy
| | - Kostas Kostarelos
- Nanomedicine Lab, Faculty of Biology, Medicine and Health, AV Hill Building, University of Manchester, Manchester M13 9PT, UK
| | - Gianluca Fiori
- Dipartimento di Ingegneria dell'Informazione, Università di Pisa, Pisa, Italy
| | - Cinzia Casiraghi
- School of Chemistry, University of Manchester, Manchester M13 9PL, UK
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