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Ding X, Rubby MF, Que S, Uchayash S, Que L. Facile Process for Fabrication of Silicon Micro-Nanostructures of Different Shapes as Molds for Fabricating Flexible Micro-Nanostructures and Wearable Sensors. ACS APPLIED MATERIALS & INTERFACES 2023; 15:12202-12208. [PMID: 36808523 DOI: 10.1021/acsami.2c22285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
We report a method to fabricate silicon micro-nanostructures of different shapes by tuning the number of layers and the sizes of self-assembled polystyrene beads, which serve as the mask, and by tuning the reactive ion etching (RIE) time. This process is simple, scalable, and inexpensive without using any sophisticated nanomanufacturing equipment. Specifically, in this work, we demonstrate the proposed process by fabricating silicon micro- or nanoflowers, micro- or nanobells, nanopyramids, and nanotriangles using a self-assembled monolayer or bilayer of polystyrene beads as the mask. We also fabricate flexible micro-nanostructures by using silicon molds with micro-nanostructures. Finally, we demonstrate the fabrication of bandage-type electrochemical sensors with micro-nanostructured working electrodes for detecting dopamine, a neurotransmitter related to stress and neurodegenerative diseases in artificial sweat. All these demonstrations indicate that the proposed process provides a low-cost, easy-to-use approach for fabricating silicon micro-nanostructures and flexible micro-nanostructures, thus paving a way for developing wearable micro-nanostructures enabled sensors for a variety of applications in an efficient manner.
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Affiliation(s)
- Xiaoke Ding
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Md Fazlay Rubby
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Suya Que
- School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Sajid Uchayash
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Long Que
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, United States
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Amirtharaj Mosas KK, Chandrasekar AR, Dasan A, Pakseresht A, Galusek D. Recent Advancements in Materials and Coatings for Biomedical Implants. Gels 2022; 8:323. [PMID: 35621621 PMCID: PMC9140433 DOI: 10.3390/gels8050323] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 11/16/2022] Open
Abstract
Metallic materials such as stainless steel (SS), titanium (Ti), magnesium (Mg) alloys, and cobalt-chromium (Co-Cr) alloys are widely used as biomaterials for implant applications. Metallic implants sometimes fail in surgeries due to inadequate biocompatibility, faster degradation rate (Mg-based alloys), inflammatory response, infections, inertness (SS, Ti, and Co-Cr alloys), lower corrosion resistance, elastic modulus mismatch, excessive wear, and shielding stress. Therefore, to address this problem, it is necessary to develop a method to improve the biofunctionalization of metallic implant surfaces by changing the materials' surface and morphology without altering the mechanical properties of metallic implants. Among various methods, surface modification on metallic surfaces by applying coatings is an effective way to improve implant material performance. In this review, we discuss the recent developments in ceramics, polymers, and metallic materials used for implant applications. Their biocompatibility is also discussed. The recent trends in coatings for biomedical implants, applications, and their future directions were also discussed in detail.
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Affiliation(s)
| | - Ashok Raja Chandrasekar
- Centre for Functional and Surface-Functionalized Glass, Alexander Dubcek University of Trencín, 911 50 Trencín, Slovakia; (A.D.); (A.P.)
| | - Arish Dasan
- Centre for Functional and Surface-Functionalized Glass, Alexander Dubcek University of Trencín, 911 50 Trencín, Slovakia; (A.D.); (A.P.)
| | - Amirhossein Pakseresht
- Centre for Functional and Surface-Functionalized Glass, Alexander Dubcek University of Trencín, 911 50 Trencín, Slovakia; (A.D.); (A.P.)
| | - Dušan Galusek
- Centre for Functional and Surface-Functionalized Glass, Alexander Dubcek University of Trencín, 911 50 Trencín, Slovakia; (A.D.); (A.P.)
- Joint Glass Centre of the IIC SAS, TnUAD, and FChFT STU, FunGlass, Alexander Dubcek University of Trencín, 911 50 Trencín, Slovakia
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Wang Z, Wang X, Wang Y, Zhu Y, Liu X, Zhou Q. NanoZnO-modified titanium implants for enhanced anti-bacterial activity, osteogenesis and corrosion resistance. J Nanobiotechnology 2021; 19:353. [PMID: 34717648 PMCID: PMC8557588 DOI: 10.1186/s12951-021-01099-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 10/20/2021] [Indexed: 02/08/2023] Open
Abstract
Titanium (Ti) implants are widely used in dentistry and orthopedics owing to their excellent corrosion resistance, biocompatibility, and mechanical properties, which have gained increasing attention from the viewpoints of fundamental research and practical applications. Also, numerous studies have been carried out to fine-tune the micro/nanostructures of Ti and/or incorporate chemical elements to improve overall implant performance. Zinc oxide nanoparticles (nano-ZnO) are well-known for their good antibacterial properties and low cytotoxicity along with their ability to synergize with a variety of substances, which have received increasingly widespread attention as biomodification materials for implants. In this review, we summarize recent research progress on nano-ZnO modified Ti-implants. Their preparation methods of nano-ZnO modified Ti-implants are introduced, followed by a further presentation of the antibacterial, osteogenic, and anti-corrosion properties of these implants. Finally, challenges and future opportunities for nano-ZnO modified Ti-implants are proposed.
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Affiliation(s)
- Zheng Wang
- Institute for Translational Medicine, Department of Orthodontics, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Xiaojing Wang
- School of Stomatology, Qingdao University, Qingdao, 266003, China
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Yingruo Wang
- Shandong University of Science and Technology, Qingdao, 266590, China
| | - Yanli Zhu
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Xinqiang Liu
- Institute for Translational Medicine, Department of Orthodontics, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China.
- School of Stomatology, Qingdao University, Qingdao, 266003, China.
| | - Qihui Zhou
- Institute for Translational Medicine, Department of Orthodontics, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China.
- School of Stomatology, Qingdao University, Qingdao, 266003, China.
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Qin S, Xu K, Nie B, Ji F, Zhang H. Approaches based on passive and active antibacterial coating on titanium to achieve antibacterial activity. J Biomed Mater Res A 2019; 106:2531-2539. [PMID: 29603857 DOI: 10.1002/jbm.a.36413] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 03/02/2018] [Accepted: 03/15/2018] [Indexed: 12/26/2022]
Abstract
Titanium (Ti) and its alloys are widely applied as orthopedic implants for hip and knee prosthesis, fixation, and dental implants. However, Ti and its alloys are bioinert and susceptible to bacteria and biofilm formation. Strategies for improving the antibacterial properties of Ti can be divided into two approaches, namely, passive coating and active coating on the Ti surface. Passive coating on Ti mainly kills the bacteria in contact but does not kill plankton or bacteria dwell in the bone tissue around the Ti implant. Active coating mainly involves the release of antibacterial agents to kill the bacteria, but this may result in the development of bacterial resistance. Both strategies include advantages and disadvantages. This article reviews the current and potential future approaches for improving antibacterial activity on Ti. We mainly focus on current approaches for fabricating antibacterial Ti and its limitations and countermeasures, and provide direction for further studies of biofunctionalization of Ti with antibacterial properties. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A:2531-2539, 2018.
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Affiliation(s)
- Sheng Qin
- Department of Orthopedics, Changhai hospital Affiliated to the Navy Military Medical University, Shanghai, People's Republic of China
| | - Kaihang Xu
- Department of Orthopedics, Changhai hospital Affiliated to the Navy Military Medical University, Shanghai, People's Republic of China
| | - Binen Nie
- Department of Bone and Joint Surgery, Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Fang Ji
- Department of Orthopedics, Changhai hospital Affiliated to the Navy Military Medical University, Shanghai, People's Republic of China
| | - Hao Zhang
- Department of Orthopedics, Changhai hospital Affiliated to the Navy Military Medical University, Shanghai, People's Republic of China
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Infection-prevention on Ti implants by controlled drug release from folic acid/ZnO quantum dots sealed titania nanotubes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 85:214-224. [DOI: 10.1016/j.msec.2017.12.034] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Revised: 12/02/2017] [Accepted: 12/30/2017] [Indexed: 12/20/2022]
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Estrada-Flores S, Martínez-Luévanos A, Bartolo-Pérez P, García-Cerda LA, Flores-Guia TE, Aguilera-González EN. Facile synthesis of novel calcium silicate hydrated-nylon 6/66 nanocomposites by solution mixing method. RSC Adv 2018; 8:41818-41827. [PMID: 35558795 PMCID: PMC9091975 DOI: 10.1039/c8ra07116k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 12/04/2018] [Indexed: 11/25/2022] Open
Abstract
In this article a facile and green procedure for the synthesis of novel calcium silicate hydrated-nylon 6/66 nanocomposites is proposed. Calcium silicate hydrate (CSH) was synthesized by a hydrolysis technique assisted by ultrasound and using sodium dodecyl sulphate (SDS) as surfactant. CSH-nylon 6/66 nanocomposites were obtained by a solution mixing method at CSH loadings of 2.5, 25, 50 and 75 weight percent (samples CA, CD, CB and CC, respectively). The synthesis of CSH was confirmed by DRX and ATR-FTIR techniques; the CSH sample presents as mesoporous with a diameter between 3.34 nm and 52.68 nm and an average size of 27.07 nm; the specific surface area of the CSH sample was 343.99 m2 g−1. The formation of the CSH-nylon 6/66 nanocomposites was confirmed by ATR-FTIR, SEM, XRD, TGA, DSC and XPS techniques. The crystallization and melting temperatures (Tm and Tc, respectively) of CSH-nylon 6/66 nanocomposites occur at a slightly lower temperatures than those of neat Ny 6/66. These results suggest a slight decrease of the crystallite size and crystallization rate of nylon 6/66. The fusion enthalpy (ΔHf) decreases with increase in CSH content in nylon 6/66, which can be associated to a good dispersion. The XRD peaks of the nylon 6/66 at 19.99° and 23.77° were displaced at slightly higher values of 2θ with the incorporation of CSH in the polymer forming nanocomposite materials. In this work it was possible to synthesize novel CSH-nylon 6/66 nanocomposites using a simple and easy methodology such as the solution mixing method and using green solvents like water, formic acid and ethanol.![]()
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Affiliation(s)
- S. Estrada-Flores
- Departamento de Materiales Cerámicos Avanzados y Energía
- Facultad de Ciencias Químicas
- Universidad Autónoma de Coahuila
- Saltillo
- Mexico
| | - A. Martínez-Luévanos
- Departamento de Materiales Cerámicos Avanzados y Energía
- Facultad de Ciencias Químicas
- Universidad Autónoma de Coahuila
- Saltillo
- Mexico
| | | | | | - T. E. Flores-Guia
- Departamento de Materiales Cerámicos Avanzados y Energía
- Facultad de Ciencias Químicas
- Universidad Autónoma de Coahuila
- Saltillo
- Mexico
| | - E. N. Aguilera-González
- Departamento de Materiales Cerámicos Avanzados y Energía
- Facultad de Ciencias Químicas
- Universidad Autónoma de Coahuila
- Saltillo
- Mexico
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Khoshnood N, Zamanian A, Massoudi A. Mussel-inspired surface modification of titania nanotubes as a novel drug delivery system. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:748-754. [PMID: 28532088 DOI: 10.1016/j.msec.2017.03.293] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 10/29/2016] [Accepted: 03/24/2017] [Indexed: 01/28/2023]
Abstract
Titania nanotubes (TNTs) have attracted considerable attention for the development of new devices for local drug delivery applications. In this study TNTs were synthesized by hydrothermal method from titania nanoparticles and then the surface of TNTs were functionalized by in situ polymerization of bioinspired polydopamine (PDA). The proposed strategies emphasized on remarkable properties of these materials and their unique combination to design local drug delivery system with advanced performance. The samples were characterized using Transmission Electron Microscope (TEM), Field Emission Scanning Electron Microscope (FESEM), X-ray diffraction pattern (XRD), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and surface area analysis (BET). The results showed that the specific surface area significantly is increased by creating tubular nanostructure. TGA results indicated Surface functionalization of TNTs with PDA (TNTs-PDA) about 19.3% that led to increase biocompatibility and bioactivity of TNTs as well as improve drug loading and release properties. It is attributed to the effect of NH2 groups which immobilize drug molecules on the TNTs. According to the obtained release profiles for the samples, the release profiles followed from a Hill model. Thus, PDA modified TNTs can be excellent candidate as specific drug delivery systems.
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Affiliation(s)
- Negin Khoshnood
- Biomaterials Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), Tehran, IRAN
| | - Ali Zamanian
- Biomaterials Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), Tehran, IRAN.
| | - Abouzar Massoudi
- Department of Semiconductors, Materials and Energy Research Center (MERC), Tehran, IRAN
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Alves SA, Ribeiro AR, Gemini-Piperni S, Silva RC, Saraiva AM, Leite PE, Perez G, Oliveira SM, Araujo JR, Archanjo BS, Rodrigues ME, Henriques M, Celis JP, Shokuhfar T, Borojevic R, Granjeiro JM, Rocha LA. TiO2nanotubes enriched with calcium, phosphorous and zinc: promising bio-selective functional surfaces for osseointegrated titanium implants. RSC Adv 2017. [DOI: 10.1039/c7ra08263k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
TiO2nanotubes enriched with Ca, P, and Zn by reverse polarization anodization, are promising bio-selective functional structures for osseointegrated titanium implants.
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