101
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Yang W, Gong Y, Li W. A Review: Electrode and Packaging Materials for Neurophysiology Recording Implants. Front Bioeng Biotechnol 2020; 8:622923. [PMID: 33585422 PMCID: PMC7873964 DOI: 10.3389/fbioe.2020.622923] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 12/10/2020] [Indexed: 01/28/2023] Open
Abstract
To date, a wide variety of neural tissue implants have been developed for neurophysiology recording from living tissues. An ideal neural implant should minimize the damage to the tissue and perform reliably and accurately for long periods of time. Therefore, the materials utilized to fabricate the neural recording implants become a critical factor. The materials of these devices could be classified into two broad categories: electrode materials as well as packaging and substrate materials. In this review, inorganic (metals and semiconductors), organic (conducting polymers), and carbon-based (graphene and carbon nanostructures) electrode materials are reviewed individually in terms of various neural recording devices that are reported in recent years. Properties of these materials, including electrical properties, mechanical properties, stability, biodegradability/bioresorbability, biocompatibility, and optical properties, and their critical importance to neural recording quality and device capabilities, are discussed. For the packaging and substrate materials, different material properties are desired for the chronic implantation of devices in the complex environment of the body, such as biocompatibility and moisture and gas hermeticity. This review summarizes common solid and soft packaging materials used in a variety of neural interface electrode designs, as well as their packaging performances. Besides, several biopolymers typically applied over the electrode package to reinforce the mechanical rigidity of devices during insertion, or to reduce the immune response and inflammation at the device-tissue interfaces are highlighted. Finally, a benchmark analysis of the discussed materials and an outlook of the future research trends are concluded.
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Affiliation(s)
- Weiyang Yang
- Microtechnology Lab, Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI, United States
| | - Yan Gong
- Microtechnology Lab, Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI, United States
| | - Wen Li
- Microtechnology Lab, Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI, United States
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102
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Gu J, Zhang C, Du Z, Yang S. Rapid and Low-Temperature Salt-Templated Production of 2D Metal Oxide/Oxychloride/Hydroxide. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1904587. [PMID: 31556236 DOI: 10.1002/smll.201904587] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 09/08/2019] [Indexed: 06/10/2023]
Abstract
2D materials have played an important role in electronics, sensors, optics, electrocatalysis, and energy storage. Many methods for the preparation of 2D materials have been explored. It is crucial to develop a high-yield, rapid, and low-temperature method to synthesize 2D materials. A general, fast (5 min), and low-temperature (≈100 °C) salt (CoCl2 ·6H2 O)-templated method is proposed to prepare series of 2D metal oxides/oxychlorides/hydroxides in large scale, such as MoO3 , SnO2 , SiO2 , BiOCl, Sb4 O5 Cl2 , Zn2 Co3 (OH)10 2H2 O, and ZnCo2 O4 . The as-synthesized 2D materials possess an ultrathin feature (2-7 nm) and large aspect ratios. Additionally, these 2D metal oxides/oxychlorides/hydroxides exhibit good electrochemical properties in energy storage (lithium/sodium-ion batteries) and electrocatalysis (hydrogen/oxygen evolution reaction).
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Affiliation(s)
- Jianan Gu
- Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Materials Science and Engineering, Beihang University, 100191, Beijing, China
| | - Chao Zhang
- Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Materials Science and Engineering, Beihang University, 100191, Beijing, China
| | - Zhiguo Du
- Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Materials Science and Engineering, Beihang University, 100191, Beijing, China
| | - Shubin Yang
- Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Materials Science and Engineering, Beihang University, 100191, Beijing, China
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103
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Gazzi A, Fusco L, Khan A, Bedognetti D, Zavan B, Vitale F, Yilmazer A, Delogu LG. Photodynamic Therapy Based on Graphene and MXene in Cancer Theranostics. Front Bioeng Biotechnol 2019; 7:295. [PMID: 31709252 PMCID: PMC6823231 DOI: 10.3389/fbioe.2019.00295] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 10/09/2019] [Indexed: 02/02/2023] Open
Abstract
Cancer is one of the leading causes of death in the world. Therefore, the development of new advanced and targeted strategies in cancer research for early diagnosis and treatment has become essential to improve diagnosis outcomes and reduce therapy side effects. Graphene and more recently, MXene, are the main representatives of the family of two-dimensional (2D) materials and are widely studied as multimodal nanoplatforms for cancer diagnostics and treatment, in particular leveraging their potentialities as photodynamic therapeutic agents. Indeed, due to their irreplaceable physicochemical properties, they are virtuous allies for photodynamic therapy (PDT) in combination with bioimaging, photothermal therapy, as well as drug and gene delivery. In this review, the rapidly progressing literature related to the use of these promising 2D materials for cancer theranostics is described in detail, highlighting all their possible future advances in PDT.
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Affiliation(s)
- Arianna Gazzi
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, Italy.,Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padua, Italy
| | - Laura Fusco
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, Italy.,Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padua, Italy.,Sidra Medical and Research Center, Doha, Qatar
| | - Anooshay Khan
- Department of Biomedical Engineering, University of Ankara, Ankara, Turkey
| | | | - Barbara Zavan
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy.,Maria Cecilia Hospital, GVM Care & Research, Ravenna, Italy
| | - Flavia Vitale
- Department of Neurology, Bioengineering, Physical Medicine & Rehabilitation, Center for Neuroengineering and Therapeutics, University of Pennsylvania, Philadelphia, PA, United States.,Center for Neurotrauma, Neurodegeneration, and Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA, United States
| | - Acelya Yilmazer
- Department of Biomedical Engineering, University of Ankara, Ankara, Turkey.,Stem Cell Institute, University of Ankara, Ankara, Turkey
| | - Lucia Gemma Delogu
- Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padua, Italy.,Department of Biomedical Sciences, University of Padua, Padua, Italy
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104
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Montazeri K, Currie M, Verger L, Dianat P, Barsoum MW, Nabet B. Beyond Gold: Spin-Coated Ti 3 C 2 -Based MXene Photodetectors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1903271. [PMID: 31523860 DOI: 10.1002/adma.201903271] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 08/15/2019] [Indexed: 05/21/2023]
Abstract
2D transition metal carbides, known as MXenes, are transparent when the samples are thin enough. They are also excellent electrical conductors with metal-like carrier concentrations. Herein, these characteristics are exploited to replace gold (Au) in GaAs photodetectors. By simply spin-coating transparent Ti3 C2 -based MXene electrodes from aqueous suspensions onto GaAs patterned with a photoresist and lifted off with acetone, photodetectors that outperform more standard Au electrodes are fabricated. Both the Au- and MXene-based devices show rectifying contacts with comparable Schottky barrier heights and internal electric fields. The latter, however, exhibit significantly higher responsivities and quantum efficiencies, with similar dark currents, hence showing better dynamic range and detectivity, and similar sub-nanosecond response speeds compared to the Au-based devices. The simple fabrication process is readily integratable into microelectronic, photonic-integrated circuits and silicon photonics processes, with a wide range of applications from optical sensing to light detection and ranging and telecommunications.
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Affiliation(s)
- Kiana Montazeri
- Electrical and Computer Engineering Department, Drexel University, Philadelphia, PA, 19104, USA
| | - Marc Currie
- Optical Sciences Division, Naval Research Laboratory, Washington, DC, 20375, USA
| | - Louisiane Verger
- Materials Science and Engineering Department, Drexel University, Philadelphia, PA, 19104, USA
| | - Pouya Dianat
- Electrical and Computer Engineering Department, Drexel University, Philadelphia, PA, 19104, USA
- Nanograss Solar LLC, 1407 Bethlehem Pike, Suite 303, Flourtown, PA, 19031, USA
| | - Michel W Barsoum
- Materials Science and Engineering Department, Drexel University, Philadelphia, PA, 19104, USA
| | - Bahram Nabet
- Electrical and Computer Engineering Department, Drexel University, Philadelphia, PA, 19104, USA
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105
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Bolotsky A, Butler D, Dong C, Gerace K, Glavin NR, Muratore C, Robinson JA, Ebrahimi A. Two-Dimensional Materials in Biosensing and Healthcare: From In Vitro Diagnostics to Optogenetics and Beyond. ACS NANO 2019; 13:9781-9810. [PMID: 31430131 DOI: 10.1021/acsnano.9b03632] [Citation(s) in RCA: 148] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Since the isolation of graphene in 2004, there has been an exponentially growing number of reports on layered two-dimensional (2D) materials for applications ranging from protective coatings to biochemical sensing. Due to the exceptional, and often tunable, electrical, optical, electrochemical, and physical properties of these materials, they can serve as the active sensing element or a supporting substrate for diverse healthcare applications. In this review, we provide a survey of the recent reports on the applications of 2D materials in biosensing and other emerging healthcare areas, ranging from wearable technologies to optogenetics to neural interfacing. Specifically, this review provides (i) a holistic evaluation of relevant material properties across a wide range of 2D systems, (ii) a comparison of 2D material-based biosensors to the state-of-the-art, (iii) relevant material synthesis approaches specifically reported for healthcare applications, and (iv) the technological considerations to facilitate mass production and commercialization.
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Affiliation(s)
| | | | - Chengye Dong
- State Key Lab of Electrical Insulation and Power Equipment , Xi'an Jiaotong University , Xi'an , Shaanxi 710049 , People's Republic of China
| | | | - Nicholas R Glavin
- Materials and Manufacturing Directorate , Air Force Research Laboratory , WPAFB , Ohio 45433 , United States
| | - Christopher Muratore
- Department of Chemical and Materials Engineering , University of Dayton , Dayton , Ohio 45469 , United States
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106
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Kim SJ, Choi J, Maleski K, Hantanasirisakul K, Jung HT, Gogotsi Y, Ahn CW. Interfacial Assembly of Ultrathin, Functional MXene Films. ACS APPLIED MATERIALS & INTERFACES 2019; 11:32320-32327. [PMID: 31405272 DOI: 10.1021/acsami.9b12539] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
MXenes are a prominent family of two-dimensional materials because of their metallic conductivity and abundant surface functionalities. Although MXenes have been extensively studied as bulk particles or free-standing films, thin and transparent films are needed for optical, optoelectronic, sensing, and other applications. In this study, we demonstrate a facile method to fabricate ultrathin (∼10 nm), Ti3C2Tx MXene films by an interfacial assembly technique. The self-assembling behavior of MXene flakes resulted in films with a high stacking order and strong plane-to-plane adherence, where optimal films of 10 nm thickness displayed a low sheet resistance of 310 Ω/□. By using surface tension, films were transferred onto various types of planar and curved substrates. Moreover, multiple films were consecutively transferred onto substrates from a single batch of solution, showing the efficient use of the material. When the films were utilized as gas sensing channels, a high signal-to-noise ratio, up to 320, was observed, where the gas response of films assembled from small MXene flakes was 10 times larger than that from large flakes. This work provides a facile and efficient method to allow MXenes to be further exploited for thin-film applications.
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Affiliation(s)
- Seon Joon Kim
- Department of Materials Science and Engineering, and A.J. Drexel Nanomaterials Institute , Drexel University , Philadelphia , Pennsylvania 19104 , United States
| | | | - Kathleen Maleski
- Department of Materials Science and Engineering, and A.J. Drexel Nanomaterials Institute , Drexel University , Philadelphia , Pennsylvania 19104 , United States
| | - Kanit Hantanasirisakul
- Department of Materials Science and Engineering, and A.J. Drexel Nanomaterials Institute , Drexel University , Philadelphia , Pennsylvania 19104 , United States
| | | | - Yury Gogotsi
- Department of Materials Science and Engineering, and A.J. Drexel Nanomaterials Institute , Drexel University , Philadelphia , Pennsylvania 19104 , United States
| | - Chi Won Ahn
- Department of Global Nanotechnology Development , National Nanofab Center , Daejeon 34141 , South Korea
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107
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Guan Q, Ma J, Yang W, Zhang R, Zhang X, Dong X, Fan Y, Cai L, Cao Y, Zhang Y, Li N, Xu Q. Highly fluorescent Ti 3C 2 MXene quantum dots for macrophage labeling and Cu 2+ ion sensing. NANOSCALE 2019; 11:14123-14133. [PMID: 31322633 DOI: 10.1039/c9nr04421c] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Quantum dots, derived from two-dimensional (2D) materials, have shown promise in bioimaging, sensing and photothermal applications, and in white light emitting devices (WLEDs). Herein, nitrogen and phosphorus functionalized Ti3C2 MXene based quantum dots (N,P-MQDs) were successfully prepared through a top-bottom hydrothermal method. This type of photoluminescent quantum dots has realized green fluorescence for the first time at around 560 nm with a photoluminescence quantum yield (PLQY) of 20.1%, the highest ever reported; meanwhile, it also exhibits excellent photostability and pH resistance capacities. Comprehensive characterization and well-resolved density functional theory (DFT) calculation were implemented to determine the mechanism of fluorescence shift and enhancement. Furthermore, the N,P-MQDs have been proved to efficiently act as fluorescent probes for macrophage labeling. In addition, the high sensitivity of the N,P-MQDs toward Cu2+ ions made them a low cost, sensitive, environment-friendly, and label-free fluorescence platform for Cu2+ detection. The outstanding performance of Ti3C2 MXene based quantum dots has demonstrated their great potential to be used as promising fluorescent probes in the fields of biological imaging, optical sensing, photoelectric conversion, etc.
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Affiliation(s)
- Qingwen Guan
- State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Biogas Upgrading Utilization, College of New Energy and Materials Science, China University of Petroleum-Beijing, Beijing, 102249, China.
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108
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Enhanced electrochemical performance of Li1.2Ni0.13Co0.13Mn0.54O2 composited with Ti3C2Tx MXene nanosheets. J Solid State Electrochem 2019. [DOI: 10.1007/s10008-019-04232-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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