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Wenck C, Leopoldt D, Habib M, Hegermann J, Stiesch M, Doll-Nikutta K, Heisterkamp A, Torres-Mapa ML. Colorimetric detection of oral bacteria using functionalized gold nanoparticles as a plasmonic biosensor array. NANOSCALE ADVANCES 2024; 6:1447-1459. [PMID: 38419865 PMCID: PMC10898432 DOI: 10.1039/d3na00477e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 01/16/2024] [Indexed: 03/02/2024]
Abstract
Early detection of specific oral bacterial species would enable timely treatment and prevention of certain oral diseases. In this work, we investigated the sensitivity and specificity of functionalized gold nanoparticles for plasmonic sensing of oral bacteria. This approach is based on the aggregation of positively charged gold nanoparticles on the negatively charged bacteria surface and the corresponding localized surface plasmon resonance (LSPR) shift. Gold nanoparticles were synthesized in different sizes, shapes and functionalization. A biosensor array was developed consisting of spherical- and anisotropic-shaped (1-hexadecyl) trimethylammonium bromide (CTAB) and spherical mercaptoethylamine (MEA) gold nanoparticles. It was used to detect four oral bacterial species (Aggregatibacter actinomycetemcomitans, Actinomyces naeslundii, Porphyromonas gingivalis and Streptococcus oralis). The plasmonic response was measured and analysed using RGB and UV-vis absorbance values. Both methods successfully detected the individual bacterial species based on their unique responses to the biosensor array. We present an in-depth study relating the bacteria zeta potential and AuNP aggregation to plasmonic response. The sensitivity depends on multiple parameters, such as bacterial species and concentration as well as gold nanoparticle shape, concentration and functionalization.
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Affiliation(s)
- Christina Wenck
- Institute of Quantum Optics, Leibniz University Hannover Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE) Germany
| | - Dorthe Leopoldt
- Institute of Quantum Optics, Leibniz University Hannover Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE) Germany
| | - Mosaieb Habib
- Institute of Inorganic Chemistry, Leibniz University Hannover Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE) Germany
| | - Jan Hegermann
- Research Core Unit Electron Microscopy, Institute of Functional and Applied Anatomy, Hannover Medical School Germany
| | - Meike Stiesch
- Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE) Germany
| | - Katharina Doll-Nikutta
- Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE) Germany
| | - Alexander Heisterkamp
- Institute of Quantum Optics, Leibniz University Hannover Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE) Germany
| | - Maria Leilani Torres-Mapa
- Institute of Quantum Optics, Leibniz University Hannover Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE) Germany
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2
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Wang X, Luan F, Yue H, Song C, Wang S, Feng J, Zhang X, Yang W, Li Y, Wei W, Tao Y. Recent advances of smart materials for ocular drug delivery. Adv Drug Deliv Rev 2023; 200:115006. [PMID: 37451500 DOI: 10.1016/j.addr.2023.115006] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 07/04/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023]
Abstract
Owing to the variety and complexity of ocular diseases and the natural ocular barriers, drug therapy for ocular diseases has significant limitations, such as poor drug targeting to the site of the disease, poor drug penetration, and short drug retention time in the vitreous body. With the development of biotechnology, biomedical materials have reached the "smart" stage. To date, despite their inability to overcome all the aforementioned drawbacks, a variety of smart materials have been widely tested to treat various ocular diseases. This review analyses the most recent developments in multiple smart materials (inorganic particles, polymeric particles, lipid-based particles, hydrogels, and devices) to treat common ocular diseases and discusses the future directions and perspectives regarding clinical translation issues. This review can help researchers rationally design more smart materials for specific ocular applications.
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Affiliation(s)
- Xiaojun Wang
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, PR China; State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Fuxiao Luan
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, PR China; State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Hua Yue
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Cui Song
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Shuang Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Jing Feng
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, PR China
| | - Xiao Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Wei Yang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Yuxin Li
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, PR China; State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Wei Wei
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China.
| | - Yong Tao
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, PR China.
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3
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Chen PZ, Clasky AJ, Gu FX. Theoretical framework and experimental methodology to elucidate the supersaturation dynamics of nanocrystal growth. NANOSCALE HORIZONS 2022; 7:376-384. [PMID: 35075470 DOI: 10.1039/d1nh00572c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Supersaturation is the fundamental parameter driving crystal formation, yet its dynamics in the growth of colloidal nanocrystals (NCs) remain poorly understood. Here, we demonstrate an approach to characterize supersaturation during classical NC growth. We develop a framework that relates noninvasive measurements of the temporal, size-dependent optical properties of growing NCs to the supersaturation dynamics underlying their growth. Using this approach, we investigate the seed-mediated growth of colloidal Au nanocubes, identifying a triphasic sequence of supersaturation dynamics: rapid monomer consumption, sustained supersaturation, and then gradual monomer depletion. These NCs undergo different shape evolutions in different phases of the supersaturation dynamics. As shown with the Au nanocubes, elucidated supersaturation profiles enable the prediction of growth profiles of NCs. We then apply these insights to rationally modulate NC shape evolutions, decreasing the yield of impurity products. Our findings reveal that the supersaturation dynamics of NC growth can be more complex than previously understood. As our approach is applicable to many types of NCs undergoing classical growth, this work presents an initial step towards more deeply interpreting the phenomena governing nanoscale crystal growth and provides insight for the rational design of NCs.
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Affiliation(s)
- Paul Z Chen
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada.
| | - Aaron J Clasky
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada.
| | - Frank X Gu
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada.
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G9, Canada
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4
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Aithal S, Mishriki S, Gupta R, Sahu RP, Botos G, Tanvir S, Hanson RW, Puri IK. SARS-CoV-2 detection with aptamer-functionalized gold nanoparticles. Talanta 2022; 236:122841. [PMID: 34635231 PMCID: PMC8409056 DOI: 10.1016/j.talanta.2021.122841] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/28/2021] [Accepted: 08/31/2021] [Indexed: 12/15/2022]
Abstract
A rapid detection test for SARS-CoV-2 is urgently required to monitor virus spread and containment. Here, we describe a test that uses nanoprobes, which are gold nanoparticles functionalized with an aptamer specific to the spike membrane protein of SARS-CoV-2. An enzyme-linked immunosorbent assay confirms aptamer binding with the spike protein on gold surfaces. Protein recognition occurs by adding a coagulant, where nanoprobes with no bound protein agglomerate while those with sufficient bound protein do not. Using plasmon absorbance spectra, the nanoprobes detect 16 nM and higher concentrations of spike protein in phosphate-buffered saline. The time-varying light absorbance is examined at 540 nm to determine the critical coagulant concentration required to agglomerates the nanoprobes, which depends on the protein concentration. This approach detects 3540 genome copies/μl of inactivated SARS-CoV-2.
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Affiliation(s)
- Srivatsa Aithal
- Department of Mechanical Engineering, McMaster University, Hamilton, Ontario, Canada
| | - Sarah Mishriki
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada
| | - Rohit Gupta
- Department of Mechanical Engineering, McMaster University, Hamilton, Ontario, Canada
| | - Rakesh P Sahu
- Department of Mechanical Engineering, McMaster University, Hamilton, Ontario, Canada; School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada; Department of Materials Science and Engineering, McMaster University, Hamilton, Ontario, Canada
| | - George Botos
- Genemis Laboratories, Cambridge, Ontario, Canada; Aptavid, New York, USA
| | | | | | - Ishwar K Puri
- Department of Mechanical Engineering, McMaster University, Hamilton, Ontario, Canada; School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada; Department of Materials Science and Engineering, McMaster University, Hamilton, Ontario, Canada.
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5
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Chuesiang P, Ryu V, Siripatrawan U, McLandsborough L, He L. Investigation of factors that impact the label-free surface-enhanced Raman scattering (SERS) for the detection and discrimination of Salmonella Enteritidis. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sharma P, Pandey V, Sharma MMM, Patra A, Singh B, Mehta S, Husen A. A Review on Biosensors and Nanosensors Application in Agroecosystems. NANOSCALE RESEARCH LETTERS 2021; 16:136. [PMID: 34460019 PMCID: PMC8405745 DOI: 10.1186/s11671-021-03593-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 08/14/2021] [Indexed: 05/19/2023]
Abstract
Previous decades have witnessed a lot of challenges that have provoked a dire need of ensuring global food security. The process of augmenting food production has made the agricultural ecosystems to face a lot of challenges like the persistence of residual particles of different pesticides, accretion of heavy metals, and contamination with toxic elemental particles which have negatively influenced the agricultural environment. The entry of such toxic elements into the human body via agricultural products engenders numerous health effects such as nerve and bone marrow disorders, metabolic disorders, infertility, disruption of biological functions at the cellular level, and respiratory and immunological diseases. The exigency for monitoring the agroecosystems can be appreciated by contemplating the reported 220,000 annual deaths due to toxic effects of residual pesticidal particles. The present practices employed for monitoring agroecosystems rely on techniques like gas chromatography, high-performance liquid chromatography, mass spectroscopy, etc. which have multiple constraints, being expensive, tedious with cumbersome protocol, demanding sophisticated appliances along with skilled personnel. The past couple of decades have witnessed a great expansion of the science of nanotechnology and this development has largely facilitated the development of modest, quick, and economically viable bio and nanosensors for detecting different entities contaminating the natural agroecosystems with an advantage of being innocuous to human health. The growth of nanotechnology has offered rapid development of bio and nanosensors for the detection of several composites which range from several metal ions, proteins, pesticides, to the detection of complete microorganisms. Therefore, the present review focuses on different bio and nanosensors employed for monitoring agricultural ecosystems and also trying to highlight the factor affecting their implementation from proof-of-concept to the commercialization stage.
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Affiliation(s)
- Pankaj Sharma
- Department of Microbiology, CCS Haryana Agricultural University, Hisar, Haryana 125004 India
| | - Vimal Pandey
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067 India
| | - Mayur Mukut Murlidhar Sharma
- Department of Agriculture and Life Industry, Kangwon National University, Chuncheon, Gangwon-do 24341 Republic of Korea
| | - Anupam Patra
- International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067 India
| | - Baljinder Singh
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067 India
| | - Sahil Mehta
- International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067 India
| | - Azamal Husen
- Wolaita Sodo University, P.O. Box: 138, Wolaita, Ethiopia
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7
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Landa G, Miranda-Calderon LG, Sebastian V, Irusta S, Mendoza G, Arruebo M. Selective point-of-care detection of pathogenic bacteria using sialic acid functionalized gold nanoparticles. Talanta 2021; 234:122644. [PMID: 34364453 DOI: 10.1016/j.talanta.2021.122644] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/04/2021] [Accepted: 06/18/2021] [Indexed: 11/19/2022]
Abstract
In resource-limited settings, fast and simple point-of-need tests should facilitate healthcare providers the identification of pathogens avoiding empirical suboptimal treatments with broad-spectrum antibiotics. A rapid optical whole cell bacterial biosensor has been here developed using sialic acid functionalized gold nanoparticles allowing the selective screening of Gram-positive Staphylococcus aureus ATCC 25923 and Methicillin Resistant Staphylococcus aureus (MRSA) USA300 and Gram-negative bacteria (Pseudomonas aeruginosa ATCC 15442) by selecting the appropriate dispersing media. Those bacteria were selected due to their common presence in wound bed tissue of chronic infected topical wounds. The discrimination of bacterial pathogens has been attempted in different media including water, two independent buffers, bacterial broth, human serum and human urine. The identification of Gram + bacterial pathogens was also assessed under simultaneous co-culture of S. Aureus and Pseudomonas aeruginosa. High bacterial loads were required to provide with a statistically significant optical pathogen identification in human serum whereas it was not possible to detect the presence of bacteria at clinically relevant levels in urine.
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Affiliation(s)
- Guillermo Landa
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain; Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro - Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018, Zaragoza, Spain
| | - Laura G Miranda-Calderon
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain; Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro - Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018, Zaragoza, Spain
| | - Victor Sebastian
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain; Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro - Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018, Zaragoza, Spain; Aragon Health Research Institute (IIS Aragon), 50009, Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029, Madrid, Spain
| | - Silvia Irusta
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain; Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro - Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018, Zaragoza, Spain; Aragon Health Research Institute (IIS Aragon), 50009, Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029, Madrid, Spain
| | - Gracia Mendoza
- Aragon Health Research Institute (IIS Aragon), 50009, Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029, Madrid, Spain
| | - Manuel Arruebo
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain; Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro - Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018, Zaragoza, Spain; Aragon Health Research Institute (IIS Aragon), 50009, Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029, Madrid, Spain.
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8
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Jones L, Hui A, Phan CM, Read ML, Azar D, Buch J, Ciolino JB, Naroo SA, Pall B, Romond K, Sankaridurg P, Schnider CM, Terry L, Willcox M. CLEAR - Contact lens technologies of the future. Cont Lens Anterior Eye 2021; 44:398-430. [PMID: 33775384 DOI: 10.1016/j.clae.2021.02.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 02/01/2021] [Indexed: 12/20/2022]
Abstract
Contact lenses in the future will likely have functions other than correction of refractive error. Lenses designed to control the development of myopia are already commercially available. Contact lenses as drug delivery devices and powered through advancements in nanotechnology will open up further opportunities for unique uses of contact lenses. This review examines the use, or potential use, of contact lenses aside from their role to correct refractive error. Contact lenses can be used to detect systemic and ocular surface diseases, treat and manage various ocular conditions and as devices that can correct presbyopia, control the development of myopia or be used for augmented vision. There is also discussion of new developments in contact lens packaging and storage cases. The use of contact lenses as devices to detect systemic disease has mostly focussed on detecting changes to glucose levels in tears for monitoring diabetic control. Glucose can be detected using changes in colour, fluorescence or generation of electric signals by embedded sensors such as boronic acid, concanavalin A or glucose oxidase. Contact lenses that have gained regulatory approval can measure changes in intraocular pressure to monitor glaucoma by measuring small changes in corneal shape. Challenges include integrating sensors into contact lenses and detecting the signals generated. Various techniques are used to optimise uptake and release of the drugs to the ocular surface to treat diseases such as dry eye, glaucoma, infection and allergy. Contact lenses that either mechanically or electronically change their shape are being investigated for the management of presbyopia. Contact lenses that slow the development of myopia are based upon incorporating concentric rings of plus power, peripheral optical zone(s) with add power or non-monotonic variations in power. Various forms of these lenses have shown a reduction in myopia in clinical trials and are available in various markets.
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Affiliation(s)
- Lyndon Jones
- Centre for Ocular Research & Education (CORE), School of Optometry & Vision Science, University of Waterloo, Waterloo, Canada; Centre for Eye and Vision Research (CEVR), 17W Hong Kong Science Park, Hong Kong.
| | - Alex Hui
- School of Optometry and Vision Science, UNSW Sydney, Sydney, NSW, Australia
| | - Chau-Minh Phan
- Centre for Ocular Research & Education (CORE), School of Optometry & Vision Science, University of Waterloo, Waterloo, Canada; Centre for Eye and Vision Research (CEVR), 17W Hong Kong Science Park, Hong Kong
| | - Michael L Read
- Eurolens Research, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Dimitri Azar
- Department of Ophthalmology and Visual Sciences, University of Illinois College of Medicine, Chicago, IL, USA; Verily Life Sciences, San Francisco, CA, USA
| | - John Buch
- Johnson & Johnson Vision Care, Jacksonville, FL, USA
| | - Joseph B Ciolino
- Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, USA
| | - Shehzad A Naroo
- College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK
| | - Brian Pall
- Johnson & Johnson Vision Care, Jacksonville, FL, USA
| | - Kathleen Romond
- Department of Ophthalmology and Visual Sciences, University of Illinois College of Medicine, Chicago, IL, USA
| | - Padmaja Sankaridurg
- School of Optometry and Vision Science, UNSW Sydney, Sydney, NSW, Australia; Brien Holden Vision Institute, Sydney, Australia
| | | | - Louise Terry
- School of Optometry and Vision Sciences, Cardiff University, UK
| | - Mark Willcox
- School of Optometry and Vision Science, UNSW Sydney, Sydney, NSW, Australia
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Clasky AJ, Watchorn JD, Chen PZ, Gu FX. From prevention to diagnosis and treatment: Biomedical applications of metal nanoparticle-hydrogel composites. Acta Biomater 2021; 122:1-25. [PMID: 33352300 DOI: 10.1016/j.actbio.2020.12.030] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/22/2020] [Accepted: 12/14/2020] [Indexed: 12/21/2022]
Abstract
Recent advances in biomaterials integrate metal nanoparticles with hydrogels to generate composite materials that exhibit new or improved properties. By precisely controlling the composition, arrangement and interactions of their constituents, these hybrid materials facilitate biomedical applications through myriad approaches. In this work we seek to highlight three popular frameworks for designing metal nanoparticle-hydrogel hybrid materials for biomedical applications. In the first approach, the properties of metal nanoparticles are incorporated into a hydrogel matrix such that the composite is selectively responsive to stimuli such as light and magnetic flux, enabling precisely activated therapeutics and self-healing biomaterials. The second approach mediates the dynamic reorganization of metal nanoparticles based on environment-directed changes in hydrogel structure, leading to chemosensing, microbial and viral detection, and drug-delivery capabilities. In the third approach, the hydrogel matrix spatially arranges metal nanoparticles to produce metamaterials or passively enhance nanoparticle properties to generate improved substrates for biomedical applications including tissue engineering and wound healing. This article reviews the construction, properties and biomedical applications of metal nanoparticle-hydrogel composites, with a focus on how they help to prevent, diagnose and treat diseases. Discussion includes how the composites lead to new or improved properties, how current biomedical research leverages these properties and the emerging directions in this growing field.
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10
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Gold Nanoparticles in Glioma Theranostics. Pharmacol Res 2020; 156:104753. [PMID: 32209363 DOI: 10.1016/j.phrs.2020.104753] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 03/07/2020] [Accepted: 03/09/2020] [Indexed: 01/07/2023]
Abstract
Despite many endeavors to treat malignant gliomas in the last decades, the median survival of patients has not significantly improved. The infiltrative nature of high-grade gliomas and the impermeability of the blood-brain barrier to the most therapeutic agents remain major hurdles, impeding an efficacious treatment. Theranostic platforms bridging diagnosis and therapeutic modalities aim to surmount the current limitations in diagnosis and therapy of glioma. Gold nanoparticles (AuNPs) due to their biocompatibility and tunable optical properties have widely been utilized for an assortment of theranostic purposes. In this Review, applications of AuNPs as imaging probes, drug/gene delivery systems, radiosensitizers, photothermal transducers, and multimodal theranostic agents in malignant gliomas are discussed. This Review also aims to provide a perspective on cancer theranostic applications of AuNPs in future clinical trials.
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11
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Wang H, Rao H, Luo M, Xue X, Xue Z, Lu X. Noble metal nanoparticles growth-based colorimetric strategies: From monocolorimetric to multicolorimetric sensors. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.06.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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12
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Droplet-based microfluidic method for robust preparation of gold nanoparticles in axisymmetric flow focusing device. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2018.10.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Chen PZ, Pollit L, Jones L, Gu FX. Functional Two- and Three-Dimensional Architectures of Immobilized Metal Nanoparticles. Chem 2018. [DOI: 10.1016/j.chempr.2018.07.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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Masse F, Ouellette M, Lamoureux G, Boisselier E. Gold nanoparticles in ophthalmology. Med Res Rev 2018; 39:302-327. [DOI: 10.1002/med.21509] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 04/13/2018] [Accepted: 04/26/2018] [Indexed: 12/23/2022]
Affiliation(s)
- Florence Masse
- CUO-Recherche, Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec and Département d'ophtalmologie; Faculté de médecine, Université Laval; Quebec Canada
| | - Mathieu Ouellette
- CUO-Recherche, Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec and Département d'ophtalmologie; Faculté de médecine, Université Laval; Quebec Canada
| | - Guillaume Lamoureux
- CUO-Recherche, Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec and Département d'ophtalmologie; Faculté de médecine, Université Laval; Quebec Canada
| | - Elodie Boisselier
- CUO-Recherche, Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec and Département d'ophtalmologie; Faculté de médecine, Université Laval; Quebec Canada
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15
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Carnt N, Samarawickrama C, White A, Stapleton F. The diagnosis and management of contact lens-related microbial keratitis. Clin Exp Optom 2017; 100:482-493. [PMID: 28815736 DOI: 10.1111/cxo.12581] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 05/22/2017] [Accepted: 05/27/2017] [Indexed: 01/10/2023] Open
Abstract
Contact lens-associated microbial keratitis poses a diagnostic dilemma for optometrists on two fronts. The distinction between sterile inflammation and microbial infection is often blurred. In addition, there is a requirement with nearly 50 per cent of the Australian and New Zealand optometric profession being therapeutically endorsed, to distinguish between cases of infection that can be managed in the community verses those that require escalation to public hospitals that have access to laboratory diagnostic tools and advanced imaging techniques, such as in vivo confocal microscopy. Pattern recognition and incorporation of knowledge of aetiology and risk factors assists optometrists to decide on optimal management strategies. Skilled optometrists will utilise emerging diagnostic and therapeutic technologies to ensure safe management strategies and better outcomes for these cases.
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Affiliation(s)
- Nicole Carnt
- School of Optometry and Vision Science, The University of New South Wales, Sydney, New South Wales, Australia.,The Westmead Institute for Medical Research, The University of Sydney, Sydney, New South Wales, Australia
| | - Chameen Samarawickrama
- The Westmead Institute for Medical Research, The University of Sydney, Sydney, New South Wales, Australia
| | - Andrew White
- The Westmead Institute for Medical Research, The University of Sydney, Sydney, New South Wales, Australia
| | - Fiona Stapleton
- School of Optometry and Vision Science, The University of New South Wales, Sydney, New South Wales, Australia
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Verma MS, Tsuji JM, Hall B, Chen PZ, Forrest J, Jones L, Gu FX. Towards point-of-care detection of polymicrobial infections: Rapid colorimetric response using a portable spectrophotometer. SENSING AND BIO-SENSING RESEARCH 2016. [DOI: 10.1016/j.sbsr.2016.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Rogowski JL, Verma MS, Gu FX. Discrimination of Proteins Using an Array of Surfactant-Stabilized Gold Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:7621-7629. [PMID: 27399345 DOI: 10.1021/acs.langmuir.6b01339] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Protein analysis is a fundamental aspect of biochemical research. Gold nanoparticles are an emerging platform for various biological applications given their high surface area, biocompatibility, and unique optical properties. The colorimetric properties of gold nanoparticles make them ideal for point-of-care diagnostics. Different aspects of gold nanoparticle-protein interactions have been investigated to predict the effect of protein adsorption on colloidal stability, but the role of surfactants is often overlooked, despite their potential to alter both protein and nanoparticle properties. Herein we present a method by which gold nanoparticles can be prepared in various surfactants and used for array-based quantification and identification of proteins. The exchange of surfactant not only changed the zeta potential of those gold nanoparticles but also drastically altered their aggregation response to five different proteins (bovine serum albumin, human serum albumin, immunoglobulin G, lysozyme, and hemoglobin) in a concentration-dependent manner. Finally, we demonstrate that varying surfactant concentration can be used to control assay sensitivity.
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Affiliation(s)
- Jacob L Rogowski
- Department of Chemical Engineering, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
- Waterloo Institute for Nanotechnology, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Mohit S Verma
- Department of Chemical Engineering, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
- Waterloo Institute for Nanotechnology, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Frank X Gu
- Department of Chemical Engineering, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
- Waterloo Institute for Nanotechnology, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
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Rogowski JL, Verma MS, Chen PZ, Gu FX. A "chemical nose" biosensor for detecting proteins in complex mixtures. Analyst 2016; 141:5627-36. [PMID: 27458615 DOI: 10.1039/c6an00729e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A growing understanding of the fundamental role of proteins in diseases has advanced the development of quantitative protein assays in the medical field. Current techniques for protein analysis include enzyme-linked immunosorbent assays (ELISA), flow cytometry, mass spectrometry, and immunohistochemistry. However, many of these conventional strategies require specialized training, expensive antibodies, or sophisticated equipment, raising assay costs and limiting their application to laboratory analysis. Here, we present the application of a "chemical nose" type colorimetric gold nanoparticle sensor for detection, quantification, and identification of single proteins, protein mixtures, and proteins within the complex environment of human serum. The unique interactions between a mixture of two different gold nanoparticle morphologies (spherical and branched) and six separate proteins (bovine serum albumin, human serum albumin, immunoglobulin G, fibrinogen, lysozyme, and hemoglobin) generated distinguishable protein- and concentration-dependent absorption spectra, even at nanomolar concentrations. Furthermore, we show that this response is sensitive to the relative abundance of different proteins in solution, permitting analysis of protein mixtures. Finally, we demonstrate the ability to distinguish human serum samples with and without a clinically relevant two-fold increase in immunoglobulin G, without the use of expensive reagents or complicated sample processing.
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Affiliation(s)
- Jacob L Rogowski
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada.
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Verma MS, Wei SC, Rogowski JL, Tsuji JM, Chen PZ, Lin CW, Jones L, Gu FX. Interactions between bacterial surface and nanoparticles govern the performance of "chemical nose" biosensors. Biosens Bioelectron 2016; 83:115-25. [PMID: 27108254 DOI: 10.1016/j.bios.2016.04.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 04/06/2016] [Accepted: 04/08/2016] [Indexed: 12/26/2022]
Abstract
Rapid and portable diagnosis of pathogenic bacteria can save lives lost from infectious diseases. Biosensors based on a "chemical nose" approach are attracting interest because they are versatile but the governing interactions between bacteria and the biosensors are poorly understood. Here, we use a "chemical nose" biosensor based on gold nanoparticles to explore the role of extracellular polymeric substances in bacteria-nanoparticle interactions. We employ simulations using Maxwell-Garnett theory to show how the type and extent of aggregation of nanoparticles influence their colorimetric response to bacteria. Using eight different species of Gram-positive and Gram-negative bacteria, we demonstrate that this "chemical nose" can detect and identify bacteria over two orders of magnitude of concentration (89% accuracy). Additionally, the "chemical nose" differentiates between binary and tertiary mixtures of the three most common hospital-isolated pathogens: Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa (100% accuracy). We demonstrate that the complex interactions between nanoparticles and bacterial surface determine the colorimetric response of gold nanoparticles and thus, govern the performance of "chemical nose" biosensors.
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Affiliation(s)
- Mohit S Verma
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada; Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada
| | - Shih-Chung Wei
- Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Jacob L Rogowski
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada; Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada
| | - Jackson M Tsuji
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada
| | - Paul Z Chen
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada; Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada
| | - Chii-Wann Lin
- Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan; Institute of Biomedical Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Lyndon Jones
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada; Centre for Contact Lens Research, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada
| | - Frank X Gu
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada; Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada.
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Influence of microbiome species in hard-to-heal wounds on disease severity and treatment duration. Braz J Infect Dis 2015; 19:604-13. [PMID: 26518264 PMCID: PMC9425364 DOI: 10.1016/j.bjid.2015.08.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 08/04/2015] [Accepted: 08/08/2015] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Infections, mostly those associated with colonization of wound by different pathogenic microorganisms, are one of the most serious health complications during a medical treatment. Therefore, this study is focused on the isolation, characterization, and identification of microorganisms prevalent in superficial wounds of patients (n=50) presenting with bacterial infection. METHODS After successful cultivation, bacteria were processed and analyzed. Initially the identification of the strains was performed through matrix-assisted laser desorption/ionization time-of-flight mass spectrometry based on comparison of protein profiles (2-30kDa) with database. Subsequently, bacterial strains from infected wounds were identified by both matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and sequencing of 16S rRNA gene 108. RESULTS The most prevalent species was Staphylococcus aureus (70%), and out of those 11% turned out to be methicillin-resistant (mecA positive). Identified strains were compared with patients' diagnoses using the method of artificial neuronal network to assess the association between severity of infection and wound microbiome species composition. Artificial neuronal network was subsequently used to predict patients' prognosis (n=9) with 85% success. CONCLUSIONS In all of 50 patients tested bacterial infections were identified. Based on the proposed artificial neuronal network we were able to predict the severity of the infection and length of the treatment.
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Verma MS, Chen PZ, Jones L, Gu FX. Controlling “chemical nose” biosensor characteristics by modulating gold nanoparticle shape and concentration. SENSING AND BIO-SENSING RESEARCH 2015. [DOI: 10.1016/j.sbsr.2015.04.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Verma MS, Rogowski JL, Jones L, Gu FX. Colorimetric biosensing of pathogens using gold nanoparticles. Biotechnol Adv 2015; 33:666-80. [PMID: 25792228 DOI: 10.1016/j.biotechadv.2015.03.003] [Citation(s) in RCA: 121] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 02/08/2015] [Accepted: 03/02/2015] [Indexed: 11/15/2022]
Abstract
Rapid detection of pathogens is crucial to minimize adverse health impacts of nosocomial, foodborne, and waterborne diseases. Gold nanoparticles are extremely successful at detecting pathogens due to their ability to provide a simple and rapid color change when their environment is altered. Here, we review general strategies of implementing gold nanoparticles in colorimetric biosensors. First, we highlight how gold nanoparticles have improved conventional genomic analysis methods by lowering detection limits while reducing assay times. Then, we focus on emerging point-of-care technologies that aim at pathogen detection using simpler assays. These advances will facilitate the implementation of gold nanoparticle-based biosensors in diverse environments throughout the world and help prevent the spread of infectious diseases.
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Affiliation(s)
- Mohit S Verma
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada; Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada
| | - Jacob L Rogowski
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada; Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada
| | - Lyndon Jones
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada; Center for Contact Lens Research, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada
| | - Frank X Gu
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada; Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1, Canada.
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