1
|
Lai C, Zhang B, Li D, Tan X, Luo B, Shen J, Li L, Shao J. Rational design of a minimum nanoplatform for maximizing therapeutic potency: Three birds with one stone. J Colloid Interface Sci 2023; 635:441-455. [PMID: 36599242 DOI: 10.1016/j.jcis.2022.12.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 12/16/2022] [Accepted: 12/28/2022] [Indexed: 01/02/2023]
Abstract
Therapeutic modalities and drug formulations play a crucial and prominent role in actualizing effective treatment and radical cures of tumors. However, the therapeutic efficiency was severely limited by tumor recurrence and complex multi-step preparation of formulation. Therefore, the exploration of novel nanoparticles via a simple and green synthesis process for conquering traditional obstacles and improving therapeutic efficiency is an appealing, yet remarkably challenging task. Herein, a universal nanoplatform allows all cancerous cell-targeting, acid-responsive, cell imaging, synergistic chemotherapy, and nucleolar targeted phototherapy function was tactfully designed and constructed by using chemotherapeutic agents ursolic acid (UA), sorafenib (SF), and carbon dots (CDs) photosensitizers (PSs). The designed US NPs were formed by self-assembly of UA and SF associated with electrostatic, π-π stacking, and hydrophobic interactions. After hydrogen bonding reaction with CDs, the obtained (denoted as USC NPs) have a relatively uniform size of an average 125.6 nm, which facilitated the favorable accumulation of drugs at the tumor region through a potential enhanced permeability and retention (EPR) effect as compared to their counterpart of free CDs solution. Both in vitro and in vivo studies revealed that the advanced platform commenced synergistic anticancer therapeutic potency, imperceptible systematical toxicity, and remarkable reticence towards drug-resistant cancer cells. Moreover, the CDs PSs possess intrinsic nucleolus-targeting ability. Taken together, this theranostics system can fully play the role of "killing three birds with one stone" in a safe manner, implying a promising direction for exploring treatment strategies for cancer and endowing them with great potential for future translational research and providing a new vision for the advancing of an exceptionally forceful protocol for practical cancer therapy.
Collapse
Affiliation(s)
- Chunmei Lai
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Bingchen Zhang
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China; Dongguan Institute of Clinical Cancer Research, Dongguan Key Laboratory of Precision Diagnosis and Treatment for Tumors, Affiliated Dongguan Hospital, Southern Medical University, Dongguan, 523058, China
| | - Dongmiao Li
- State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Xiarong Tan
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Bangyue Luo
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Jiangwen Shen
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Linyan Li
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Jingwei Shao
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China; Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China.
| |
Collapse
|
2
|
Corsi I, Venditti I, Trotta F, Punta C. Environmental safety of nanotechnologies: The eco-design of manufactured nanomaterials for environmental remediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 864:161181. [PMID: 36581299 DOI: 10.1016/j.scitotenv.2022.161181] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 12/09/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Nanosafety is paramount considering the risks associated with manufactured nanomaterials (MNMs) whose implications could outweigh their advantages for environmental applications. Although nanotechnology-based solutions to implement pollution control, remediation and prevention are incremental with clear benefits for public health and Earth' natural ecosystems, nanoremediation is having a setback due to the risks associated with the safety of MNMs for humans and the environment. MNMs are diverse, work differently and bionano-interactions occurring upon environmental exposure will guide their fate and hazardous outcomes. Here we propose a new ecologically-based design strategy (eco-design) having its roots in green nanoscience and LCA that will ground on an Ecological Risk Assessment approach, which introduces the evaluation of MNMs' ecotoxicity along with their performances and efficacies at the design stage. As such, the proposed eco-design strategy will allow recognition and design-out since the very beginning of material synthesis, those hazardous peculiar features that can be hazardous to living beings and the natural environment. A more ecologically sound eco-design strategy in which nanosafety is conceptually included in MNMs design will sustain safer nanotechnologies including those for the environment as remediation by leveraging any risks for humans and natural ecosystems.
Collapse
Affiliation(s)
- Ilaria Corsi
- Department of Physical, Earth and Environmental Sciences, University of Siena, via Mattioli, 4, 53100 Siena, Italy.
| | - Iole Venditti
- Department of Sciences, Roma Tre University of Rome, via della Vasca Navale 79, 00146 Rome, Italy
| | - Francesco Trotta
- Department of Chemistry, University of Torino, via P. Giuria 7, 10125 Torino, Italy
| | - Carlo Punta
- Department of Chemistry, Materials, and Chemical Engineering "G. Natta" and INSTM Local Unit, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy
| |
Collapse
|
3
|
Molecularly imprinted 3D SERS sensor with inorganic frameworks for specific and recyclable SERS sensing application. Mikrochim Acta 2023; 190:50. [PMID: 36629926 DOI: 10.1007/s00604-023-05631-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 12/22/2022] [Indexed: 01/12/2023]
Abstract
Poor selectivity and reusability of Au/Ag nanostructures are the main challenges for surface-enhanced Raman spectroscopy (SERS) in real sample detection. Herein, a novel specific and reusable three-dimensional (3D) SERS sensor with dual functions of selective trapping and photocatalytic degradation was designed. Firstly, Au-Ag bimetallic nanoparticles decorated silicon nanowires array (SiNWs-AuAg) were prepared as 3D SERS substrate. Then, silicon-based inorganic-framework molecularly imprinted TiO2 (TiO2@SiMIP) was synthesized and immobilized on SiNWs-AuAg by using rhodamine 6G (R6G) as template molecule. Owing to the excellent SERS performance of SiNWs-AuAg and the specific affinity of TiO2@SiMIP to template molecule, the prepared SERS sensor enables sensitive and selective detection of R6G in food samples with a limit of detection (LOD) of 0.27 nM. In addition, due to the photocatalysis of TiO2 and the stability of silicon-based inorganic framework, the residual templates in TiO2@SiMIP can be completely removed by UV irradiation, and the imprinted cavity of regenerated sensors still maintained good selectivity after regeneration by UV irradiation.
Collapse
|
4
|
Ge K, Hu Y, Li G. Recent Progress on Solid Substrates for Surface-Enhanced Raman Spectroscopy Analysis. BIOSENSORS 2022; 12:941. [PMID: 36354450 PMCID: PMC9687977 DOI: 10.3390/bios12110941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 10/25/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is a powerful vibrational spectroscopy technique with distinguished features of non-destructivity, ultra-sensitivity, rapidity, and fingerprint characteristics for analysis and sensors. The SERS signals are mainly dependent on the engineering of high-quality substrates. Recently, solid SERS substrates with diverse forms have been attracting increasing attention due to their promising features, including dense hot spot, high stability, controllable morphology, and convenient portability. Here, we comprehensively review the recent advances made in the field of solid SERS substrates, including their common fabrication methods, basic categories, main features, and representative applications, respectively. Firstly, the main categories of solid SERS substrates, mainly including membrane substrate, self-assembled substrate, chip substrate, magnetic solid substrate, and other solid substrate, are introduced in detail, as well as corresponding construction strategies and main features. Secondly, the typical applications of solid SERS substrates in bio-analysis, food safety analysis, environment analysis, and other analyses are briefly reviewed. Finally, the challenges and perspectives of solid SERS substrates, including analytical performance improvement and largescale production level enhancement, are proposed.
Collapse
|
5
|
Chauhan P, Bhargava A, Kumari R, Ratre P, Tiwari R, Kumar Srivastava R, Yu Goryacheva I, Kumar Mishra P. Surface-enhanced Raman scattering biosensors for detection of oncomiRs in breast cancer. Drug Discov Today 2022; 27:2121-2136. [PMID: 35460892 DOI: 10.1016/j.drudis.2022.04.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/03/2022] [Accepted: 04/13/2022] [Indexed: 12/16/2022]
Abstract
Surface-enhanced Raman scattering (SERS) has emerged as one of the most promising platforms for various biosensing applications. These sensing systems encompass the advantages of specificity, ultra-high sensitivity, stability, low cost, repeatability, and easy-to-use methods. Moreover, their ability to offer a molecular fingerprint and identify the target analyte at low levels make SERS a promising technique for detecting circulating cancer biomarkers with greater sensitivity and reliability. Among the various circulating biomolecules, oncomiRs are emerging as prominent biomarkers for the early screening of breast cancers (BCs). In this review, we provide a comprehensive understanding of different SERS-based biosensors and their application to identify BC-specific oncomiRs. We also discuss different SERS-based sensing strategies, nano-analytical frameworks, and challenges to be addressed for effective clinical translation.
Collapse
Affiliation(s)
- Prachi Chauhan
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Arpit Bhargava
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Roshani Kumari
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Pooja Ratre
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Rajnarayan Tiwari
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | | | - Irina Yu Goryacheva
- Department of General and Inorganic Chemistry, Saratov State University, Saratov, Russia
| | - Pradyumna Kumar Mishra
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India.
| |
Collapse
|
6
|
Khanal BP, Zubarev ER. Synthesis of Asymmetric One-Dimensional Pd on Au Bimetallic Nanostructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:9901-9909. [PMID: 34369149 DOI: 10.1021/acs.langmuir.1c01640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Nanostructures composed of a gold nanorod (AuNR) core and a Pd/Pt shell are of great interest due to their potential application as plasmon resonance-enhanced catalysts. However, the synthesis of well-defined one-dimensional bimetallic nanostructures with precise control over shell thickness and length remains a challenge. In this study, we report a detailed and systematic study on the chemical synthesis of a uniform Pd shell on single crystalline and pentahedrally twinned (PHT) AuNRs of various lengths. AuNRs were used as a template, and the slow and controlled reduction of Pd(II) ions on preformed AuNRs was carried out for the formation of rectangular-shaped Au@Pd bimetallic nanorods. The Pd shell thickness around the AuNRs was controlled by the supply of Pd(II) ions in the growth solution. We were able to grow a ∼20 nm uniform Pd shell around the AuNR, keeping the rod-like morphology intact without local nucleation to form irregular shapes and randomly overgrown nanostructures. The formation of bimetallic nanorods was also extended beyond typical single crystalline nanorods to PHT high aspect ratio gold nanorods and nanowires, using them as templates. To our surprise, unusually curved asymmetric nanorods were formed when the Pd deposition was carried out on AuNRs longer than ∼800 nm which could be possibly due to a Pd and Au lattice mismatch at the interface and higher flexibility of the nanorods when they exceeded certain lengths.
Collapse
Affiliation(s)
- Bishnu P Khanal
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Eugene R Zubarev
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| |
Collapse
|
7
|
Pan X, Bai L, Pan C, Liu Z, Ramakrishna S. Design, Fabrication and Applications of Electrospun Nanofiber-Based Surface-Enhanced Raman Spectroscopy Substrate. Crit Rev Anal Chem 2021; 53:289-308. [PMID: 34284659 DOI: 10.1080/10408347.2021.1950522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is an advanced and powerful analysis tool. Due to the advantages of high sensitivity, high resolution, and nondestructive testing, it has been widely used in physics, chemistry, material science and other fields. In recent years, substantial progress has been made in developing flexible platforms for the design and fabrication of SERS substrates. One important kind of the flexible platforms is based on electrospun nanofibers. Electrospun nanofibers not only have unique advantages such as easy preparation, high porosity and large specific surface area, but also can increase the number of hotspots when combined with precious metal nanomaterials, thereby enhancing the SERS signal and expanding the application scope. In this review, we firstly focus on two strategies for the fabrication of metal nanostructure decorated in/on the electrospun nanofibers, namely in-situ and ex-situ. Then the applications of these SERS substrates in the fields of quantitative analysis, monitoring chemical reactions and recyclable detection are introduced in detail. Finally, the challenges as well as perspectives are presented to offer a guideline for the future exploration of these SERS substrates. We expect that it will provide new inspiration for the development of electrospun nanofiber-based SERS substrates.
Collapse
Affiliation(s)
- Xue Pan
- School of Materials Science and Engineering, Ocean University of China, Qingdao, China
| | - Lu Bai
- Institute for Chemical Biology & Biosensing, and College of Life Sciences, Qingdao University, Qingdao, China
| | - Chengcheng Pan
- School of Materials Science and Engineering, Ocean University of China, Qingdao, China
| | - Zhicheng Liu
- School of Materials Science and Engineering, Ocean University of China, Qingdao, China.,Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| |
Collapse
|
8
|
Matsumoto M, Kaneko K, Hara M, Matsui M, Morita K, Maruyama T. Covalent immobilization of gold nanoparticles on a plastic substrate and subsequent immobilization of biomolecules. RSC Adv 2021; 11:23409-23417. [PMID: 35479813 PMCID: PMC9036532 DOI: 10.1039/d1ra03902d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 06/25/2021] [Indexed: 12/14/2022] Open
Abstract
We propose a novel approach to stably immobilize gold nanoparticles (AuNPs) on a plastic substrate and demonstrate that the modified substrate is also capable of immobilizing biomolecules. To immobilize citrate-capped AuNPs, an acrylic substrate was simply dip-coated in a functional polymer solution to decorate the outermost surface with amino groups. Electrostatic interactions between AuNPs and the amino groups immobilized the AuNPs with a high density. The AuNP-modified acrylic substrate was transparent with a red tint. A heat treatment promoted the formation of amide bonds between carboxy groups on the AuNPs and amino groups on the substrate surface. These covalent bonds stabilized the immobilized AuNPs and the resulting substrate was resistant to washing with acid and thiol-containing solutions. The surface density of AuNPs was controlled by the surface density of amino groups on the substrate surface, which was in turn controlled by the dip-coating in the functional polymer solution. We attempted to immobilize functional biomolecules on the AuNPs-functionalized plastic surface by two different approaches. An enzyme (horseradish peroxidase) was successfully immobilized on the AuNPs through amide formation and 5′-thiolated DNA was also immobilized on the AuNPs through S–Au interactions. These chemistries allow for simultaneous immobilization of two different kinds of biomolecules on a plastic substrate without loss of their functional properties. We propose a novel approach to stably immobilize gold nanoparticles (AuNPs) on a plastic substrate and demonstrate that the modified substrate is also capable of immobilizing biomolecules.![]()
Collapse
Affiliation(s)
- Mimari Matsumoto
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University 1-1 Rokkodai, Nada-ku Kobe 657-8501 Japan
| | - Kazuki Kaneko
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University 1-1 Rokkodai, Nada-ku Kobe 657-8501 Japan
| | - Manami Hara
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University 1-1 Rokkodai, Nada-ku Kobe 657-8501 Japan
| | - Masaki Matsui
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University 1-1 Rokkodai, Nada-ku Kobe 657-8501 Japan
| | - Kenta Morita
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University 1-1 Rokkodai, Nada-ku Kobe 657-8501 Japan
| | - Tatsuo Maruyama
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University 1-1 Rokkodai, Nada-ku Kobe 657-8501 Japan .,Research Center for Membrane and Film Technology, Kobe University 1-1 Rokkodai, Nada Kobe 657-8501 Japan
| |
Collapse
|
9
|
Naidu KCB, Kumar NS, Banerjee P, Reddy BVS. A review on the origin of nanofibers/nanorods structures and applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:68. [PMID: 34117944 PMCID: PMC8197713 DOI: 10.1007/s10856-021-06541-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 05/30/2021] [Indexed: 05/11/2023]
Abstract
In this review work, we highlight the origin of morphological structures such as nanofibers/nanorods in case of various materials in nano as well as bulk form. In addition, a discussion on different cations of different ionic radii and other intrinsic factors is provided. The materials (ceramic titanates, ferrites, hexaferrites, oxides, organic/inorganic composites, etc.,) exhibiting the nanofibers/nanorods like morphological structures are tabulated. Furthermore, the significance of nanofibers/nanorods obtained from distinct materials is elucidated in multiple scientific and technological fields. At the end, the device applications of these morphological species are also described in the current technology. The nucleation and growth mechanism of α-MnO2 nanorods using natural extracts from Malus domestica and Vitis vinifera [3].
Collapse
Affiliation(s)
- K Chandra Babu Naidu
- Department of Physics, GITAM Deemed to be University, Bangalore, 562163, Karnataka, India.
| | - N Suresh Kumar
- Department of Physics, JNTUA, Anantapuramu, 515002, Andhra Pradesh, India
| | - Prasun Banerjee
- Department of Physics, GITAM Deemed to be University, Bangalore, 562163, Karnataka, India
| | - B Venkata Shiva Reddy
- Department of Physics, GITAM Deemed to be University, Bangalore, 562163, Karnataka, India
- Department of Physics, The National College, Bagepalli, 561207, Karnataka, India
| |
Collapse
|
10
|
Rohleder D, Vana P. Near-Infrared-Triggered Photothermal Aggregation of Polymer-Grafted Gold Nanorods in a Simulated Blood Fluid. Biomacromolecules 2021; 22:1614-1624. [PMID: 33689319 DOI: 10.1021/acs.biomac.1c00077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Gold nanorods were decorated with thermoresponsive copolymers of tailored architecture and constructed from N-isopropyl acrylamide and acrylamide. The copolymers were prepared via reversible addition-fragmentation chain transfer polymerization (RAFT) and immobilized on the gold nanorod surface taking advantage of the aurophilicity of its inherently formed trithiocarbonate groups. The topology as well as the average molecular weight of the copolymers was altered using either a monofunctional or 3-arm star RAFT agent. Two-dimensional arrays of the self-assembled core-shell nanostructures were fabricated by drop-casting showing tunable interparticle spacings. In a simulated blood fluid, the lower critical solution temperature of the nanohybrids could be modified over a significant temperature range around body temperature by adjusting the copolymer composition, the architecture, and/or the size of the polymer. The intrinsic photothermal properties of the gold nanorods were utilized to trigger particle aggregation by irradiation at 808 nm in the optical window of human tissues. In effect, a new nanohybrid system with remotely controllable aggregation via an external NIR-light stimulus for nanomedical applications was developed.
Collapse
Affiliation(s)
- Darius Rohleder
- Institute of Physical Chemistry, Georg-August-University Göttingen, Tammannstr. 6, Göttingen 37077, Germany
| | - Philipp Vana
- Institute of Physical Chemistry, Georg-August-University Göttingen, Tammannstr. 6, Göttingen 37077, Germany
| |
Collapse
|
11
|
Pekdemir S, Ipekci HH, Serhatlioglu M, Elbuken C, Onses MS. SERS-active linear barcodes by microfluidic-assisted patterning. J Colloid Interface Sci 2021; 584:11-18. [PMID: 33035799 DOI: 10.1016/j.jcis.2020.09.087] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 09/18/2020] [Accepted: 09/22/2020] [Indexed: 12/20/2022]
Abstract
Simple, low-cost, robust, and scalable fabrication of microscopic linear barcodes with high levels of complexity and multiple authentication layers is critical for emerging applications in information security and anti-counterfeiting. This manuscript presents a novel approach for fabrication of microscopic linear barcodes that can be visualized under Raman microscopy. Microfluidic channels are used as molds to generate linear patterns of end-grafted polymers on a substrate. These patterns serve as templates for area-selective binding of colloidal gold nanoparticles resulting in plasmonic arrays. The deposition of multiple taggant molecules on the plasmonic arrays via a second microfluidic mold results in a linear barcode with unique Raman fingerprints that are enhanced by the underlying plasmonic nanoparticles. The width of the bars is as small as 10 μm, with a total barcode length on the order of 100 μm. The simultaneous use of geometric and chemical security layers provides a high level of complexity challenging the counterfeiting of the barcodes. The additive, scalable, and inexpensive nature of the presented approach can be easily adapted to different colloidal nanomaterials and applications.
Collapse
Affiliation(s)
- Sami Pekdemir
- Department of Materials Science and Engineering, Erciyes University, Kayseri 38039, Turkey; ERNAM - Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey
| | - Hasan Hüseyin Ipekci
- ERNAM - Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey; Metallurgical and Materials Engineering, Faculty of Engineering and Architecture, Necmettin Erbakan University, Konya, 42090, Turkey
| | - Murat Serhatlioglu
- UNAM-National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara, Turkey
| | - Caglar Elbuken
- UNAM-National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara, Turkey; Faculty of Biochemistry and Molecular Medicine, Faculty of Medicine, University of Oulu, 90014 Oulu, Finland.
| | - M Serdar Onses
- Department of Materials Science and Engineering, Erciyes University, Kayseri 38039, Turkey; ERNAM - Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey; UNAM-National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara, Turkey.
| |
Collapse
|
12
|
Li N, Zhang M, Zha Y, Cao Y, Ma Y. π-π stacking-directed self-assembly of nanoplatelets into diversified three-dimensional superparticles for high surface-enhanced Raman scattering. J Colloid Interface Sci 2020; 575:54-60. [PMID: 32361046 DOI: 10.1016/j.jcis.2020.04.088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/17/2020] [Accepted: 04/20/2020] [Indexed: 11/18/2022]
Abstract
Ordered, hierarchical structures formed from nanoparticle (NP) self-assembly are of interest as they display the synergistic properties of the individual NP. Herein we report a one-pot approach to form and self-assemble gold (Au) nanoplatelets into brick-wall like (BWL) Au superparticles (AuSPs). We employ an aniline (ANI) derivative, N-(3-amidino)-aniline (NAAN) to reduce the Au precursor into Au nanoplatelets in the presence of Br-1. The corresponding oxidation product, poly (N-(3-amidino)-aniline) (PNAAN) functions as the capping agent and enables the face-to-face self-assembly of Au nanoplatelets into BWL AuSPs via the π-π stacking interaction. Systematically tuning the reaction conditions leads to spherical, mushroom- or cauliflower-like AuSPs. The significant electromagnetic enhancement of AuSPs via the formation of the nanogaps produces high-density hotspots for excellent surface-enhanced Raman scattering (SERS) enhancement, enabling the ultrasensitive SERS assay with detection limit of pM. Moreover, the as-prepared AuSPs exhibited the intense SERS signals under laser excitation with different wavelength and the excellent reproducibility after long-duration exposure in different media. The developed SERS sensor has a great potential for a wide application of bioanalysis, clinic assays and environmental monitoring.
Collapse
Affiliation(s)
- Nan Li
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China; Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of Ministry of Education, Tsinghua University, Beijing 100084, China.
| | - Meiying Zhang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Yongchao Zha
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Yingzi Cao
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Ying Ma
- College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| |
Collapse
|
13
|
Pekdemir S, Torun I, Sakir M, Ruzi M, Rogers JA, Onses MS. Chemical Funneling of Colloidal Gold Nanoparticles on Printed Arrays of End-Grafted Polymers for Plasmonic Applications. ACS NANO 2020; 14:8276-8286. [PMID: 32569462 DOI: 10.1021/acsnano.0c01987] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Spatially defined assembly of colloidal metallic nanoparticles is necessary for fabrication of plasmonic devices. In this study, we demonstrate high-resolution additive jet printing of end-functional polymers to serve as templates for directed self-assembly of nanoparticles into architectures with substantial plasmonic activity. The intriguing aspect of this work is the ability to form patterns of end-grafted poly(ethylene glycol) through printing on a hydrophobic layer that consists of fluoroalkylsilanes. The simultaneous dewetting of the underlying hydrophobic layer together with grafting of the printed polymer during thermal annealing enables fabrication of spatially defined binding sites for assembly of nanoparticles. The employment of electrohydrodynamic jet printing and aqueous inks together with reduction of the feature size during thermal annealing are critically important in achieving high chemical contrast patterns as small as ∼250 nm. Gold nanospheres of varying diameters selectively bind and assemble into nanostructures with reduced interparticle distances on the hydrophilic patterns of poly(ethylene glycol) surrounded with a hydrophobic background. The resulting plasmonic arrays exhibit intense and pattern-specific signals in surface-enhanced Raman scattering (SERS) spectroscopy. The localized seed-mediated growth of metallic nanostructures over the patterned gold nanospheres presents further routes for expanding the composition of the plasmonic arrays. A representative application in SERS-based surface encoding is demonstrated through large-area patterning of plasmonic structures and multiplex deposition of taggant molecules, all enabled by printing.
Collapse
Affiliation(s)
- Sami Pekdemir
- Department of Materials Science and Engineering, Erciyes University, Kayseri, 38039, Turkey
- ERNAM, Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey
| | - Ilker Torun
- Department of Materials Science and Engineering, Erciyes University, Kayseri, 38039, Turkey
- ERNAM, Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey
| | - Menekse Sakir
- Department of Materials Science and Engineering, Erciyes University, Kayseri, 38039, Turkey
- ERNAM, Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey
| | - Mahmut Ruzi
- ERNAM, Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey
| | - John A Rogers
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, Illinois 60208, United States
- Departments of Materials Science and Engineering, Biomedical Engineering, Chemistry, Mechanical Engineering, Electrical Engineering and Computer Science, Simpson Querrey Institute for Nano/Biotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - M Serdar Onses
- Department of Materials Science and Engineering, Erciyes University, Kayseri, 38039, Turkey
- ERNAM, Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey
- UNAM-National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey
| |
Collapse
|
14
|
|
15
|
Karagoz S, Kiremitler NB, Sakir M, Salem S, Onses MS, Sahmetlioglu E, Ceylan A, Yilmaz E. Synthesis of Ag and TiO 2 modified polycaprolactone electrospun nanofibers (PCL/TiO 2-Ag NFs) as a multifunctional material for SERS, photocatalysis and antibacterial applications. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 188:109856. [PMID: 31722800 DOI: 10.1016/j.ecoenv.2019.109856] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 10/19/2019] [Accepted: 10/22/2019] [Indexed: 06/10/2023]
Abstract
In this study, we reported the design and the fabrication of Ag and TiO2 modified polycaprolactone (PCL) electrospun nanofiber (NF) mats. The as-prepared NF mats were fabricated by one-step electrospinning and it was exploited for three different purposes (i) reusable SERS substrate for quantitative analysis to trace organic pollutants, (ii) photocatalyst for degradation of organic pollutants and (iii) antibacterial agent for killing of bacteria. Three different nanofiber mats, PCL, PCL-TiO2, PCL/TiO2-Ag NFs. were fabricated and further investigated. The morphologies and structures of the as-prepared nanofiber mats were carried out using X-ray diffraction spectroscopy (XRD), field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX) and fourier transform infrared spectroscopy (FT-IR) techniques. PCL/TiO2-Ag NFs served as a highly effective SERS platform with a detection limit of 10 nM for the detection of methylene blue dye (MB). A remarkable feature of the presented platform is the ability to reuse the PCL/TiO2-Ag NFs for SERS analysis of MB; availing from its capability for self-cleaning under UV light. By employing PCL/TiO2-Ag NFs nanocatalyst, complete photocatalytic degradation of the probe analytes MB and ibuprofen (Ibu) under UV irradiation was accomplished not more than 180 min. Moreover, PCL/TiO2-Ag NF mats showed a highly promising bactericidal feature against gram-negative Escherichia coli and gram-positive Staphylococcus aureus bacteria, which immensely emerged due to the presence of Ag NPs. This new trending nanofiber is assumed to lead a bunch of changes in the field of photocatalytic, SERS and antibacterial studies.
Collapse
Affiliation(s)
- Sultan Karagoz
- ERNAM - Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey
| | - N Burak Kiremitler
- ERNAM - Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey; Department of Materials Science and Engineering, Faculty of Engineering, Erciyes University, Kayseri, 38039, Turkey
| | - Menekse Sakir
- ERNAM - Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey
| | - Samaa Salem
- ERNAM - Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey; Faculty of Pharmacy, Erciyes University, Kayseri, 38039, Turkey
| | - M Serdar Onses
- ERNAM - Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey; Department of Materials Science and Engineering, Faculty of Engineering, Erciyes University, Kayseri, 38039, Turkey
| | - Ertugrul Sahmetlioglu
- ERNAM - Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey; Safiye Cikrikcioglu Vocational School, Kayseri University, Kayseri, 38039, Turkey
| | - Ahmet Ceylan
- Faculty of Pharmacy, Erciyes University, Kayseri, 38039, Turkey
| | - Erkan Yilmaz
- ERNAM - Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey; Faculty of Pharmacy, Erciyes University, Kayseri, 38039, Turkey; Technology Research & Application Center (TAUM), Erciyes University, Kayseri, 38039, Turkey.
| |
Collapse
|
16
|
Kiremitler NB, Torun I, Altintas Y, Patarroyo J, Demir HV, Puntes VF, Mutlugun E, Onses MS. Writing chemical patterns using electrospun fibers as nanoscale inkpots for directed assembly of colloidal nanocrystals. NANOSCALE 2020; 12:895-903. [PMID: 31833522 DOI: 10.1039/c9nr08056b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Applications that range from electronics to biotechnology will greatly benefit from low-cost, scalable and multiplex fabrication of spatially defined arrays of colloidal inorganic nanocrystals. In this work, we present a novel additive patterning approach based on the use of electrospun nanofibers (NFs) as inkpots for end-functional polymers. The localized grafting of end-functional polymers from spatially defined nanofibers results in covalently bound chemical patterns. The main factors that determine the width of the nanopatterns are the diameter of the NF and the extent of spreading during the thermal annealing process. Lowering the surface energy of the substrates via silanization and a proper choice of the grafting conditions enable the fabrication of nanoscale patterns over centimeter length scales. The fabricated patterns of end-grafted polymers serve as the templates for spatially defined assembly of colloidal metal and metal oxide nanocrystals of varying sizes (15 to 100 nm), shapes (spherical, cube, rod), and compositions (Au, Ag, Pt, TiO2), as well as semiconductor quantum dots, including the assembly of semiconductor nanoplatelets.
Collapse
Affiliation(s)
- N Burak Kiremitler
- ERNAM - Erciyes University Nanotechnology Application and Research Center, Kayseri, 38039, Turkey.
| | | | | | | | | | | | | | | |
Collapse
|
17
|
Photocatalytic green fabrication of Au nanoparticles on ZnO nanorods modified membrane as flexible and photocatalytic active reusable SERS substrates. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124088] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
18
|
Venditti I. Engineered Gold-Based Nanomaterials: Morphologies and Functionalities in Biomedical Applications. A Mini Review. Bioengineering (Basel) 2019; 6:bioengineering6020053. [PMID: 31185667 PMCID: PMC6630817 DOI: 10.3390/bioengineering6020053] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/06/2019] [Accepted: 06/07/2019] [Indexed: 12/27/2022] Open
Abstract
In the last decade, several engineered gold-based nanomaterials, such as spheres, rods, stars, cubes, hollow particles, and nanocapsules have been widely explored in biomedical fields, in particular in therapy and diagnostics. As well as different shapes and dimensions, these materials may, on their surfaces, have specific functionalizations to improve their capability as sensors or in drug loading and controlled release, and/or particular cell receptors ligands, in order to get a definite targeting. In this review, the up-to-date progress will be illustrated regarding morphologies, sizes and functionalizations, mostly used to obtain an improved performance of nanomaterials in biomedicine. Many suggestions are presented to organize and compare the numerous and heterogeneous experimental data, such as the most important chemical-physical parameters, which guide and control the interaction between the gold surface and biological environment. The purpose of all this is to offer the readers an overview of the most noteworthy progress and challenges in this research field.
Collapse
Affiliation(s)
- Iole Venditti
- Department of Sciences, University of Roma Tre, via della Vasca Navale 79, 00146 Rome, Italy.
| |
Collapse
|
19
|
Russo L, Sánchez-Purrà M, Rodriguez-Quijada C, Leonardo BM, Puntes V, Hamad-Schifferli K. Detection of resistance protein A (MxA) in paper-based immunoassays with surface enhanced Raman spectroscopy with AuAg nanoshells. NANOSCALE 2019; 11:10819-10827. [PMID: 31135010 DOI: 10.1039/c9nr02397f] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Myxovirus protein A (MxA) is a biomarker that can be used to distinguish between viral and bacterial infections. While MxA lateral flow assays (LFAs) have been successfully used for viral vs. bacterial differential diagnosis for children, the clinically relevant level of MxA for adults has been reported to be 100 times lower, which is too low for traditional LFAs. We present results applying the use of surface enhanced Raman spectroscopy (SERS) to detect MxA. AuAg nanoshells (AuAg NSs) were used to enhance the Raman signal of mercaptobenzoic acid (4-MBA), enabling readout by SERS. The AuAg NSs were conjugated to antibodies for the biomarker of interest, resulting in a "nanotag", that could be used in a dipstick immunoassay for detection. We first optimized the nanotag parameters using anti-human IgG/human IgG as a model antibody/antigen system, and then demonstrated detection of MxA using anti-MxA antibodies. We show that SERS readout of immunoassays for MxA can quantify MxA levels at clinically relevant levels for adult viral infection.
Collapse
Affiliation(s)
- Lorenzo Russo
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
| | | | | | | | | | | |
Collapse
|
20
|
Fratoddi I, Venditti I, Battocchio C, Carlini L, Amatori S, Porchia M, Tisato F, Bondino F, Magnano E, Pellei M, Santini C. Highly Hydrophilic Gold Nanoparticles as Carrier for Anticancer Copper(I) Complexes: Loading and Release Studies for Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E772. [PMID: 31137492 PMCID: PMC6567210 DOI: 10.3390/nano9050772] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 05/15/2019] [Indexed: 02/07/2023]
Abstract
Gold nanoparticles (AuNPs), which are strongly hydrophilic and dimensionally suitable for drug delivery, were used in loading and release studies of two different copper(I)-based antitumor complexes, namely [Cu(PTA)4]+ [BF4]- (A; PTA = 1, 3, 5-triaza-7-phosphadamantane) and [HB(pz)3Cu(PCN)] (B; HB(pz)3 = tris(pyrazolyl)borate, PCN = tris(cyanoethyl)phosphane). In the homoleptic, water-soluble compound A, the metal is tetrahedrally arranged in a cationic moiety. Compound B is instead a mixed-ligand (scorpionate/phosphane), neutral complex insoluble in water. In this work, the loading procedures and the loading efficiency of A and B complexes on the AuNPs were investigated, with the aim to improve their bioavailability and to obtain a controlled release. The non-covalent interactions of A and B with the AuNPs surface were studied by means of dynamic light scattering (DLS), UV-Vis, FT-IR and high-resolution x-ray photoelectron spectroscopy (HR-XPS) measurements. As a result, the AuNPs-A system proved to be more stable and efficient than the AuNPs-B system. In fact, for AuNPs-A the drug loading reached 90%, whereas for AuNPs-B it reached 65%. For AuNPs-A conjugated systems, a release study in water solution was performed over 4 days, showing a slow release up to 10%.
Collapse
Affiliation(s)
- Ilaria Fratoddi
- Chemistry Department Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - Iole Venditti
- Sciences Department Roma Tre University of Rome, via della Vasca navale 79, 00146 Rome Italy.
| | - Chiara Battocchio
- Sciences Department Roma Tre University of Rome, via della Vasca navale 79, 00146 Rome Italy.
| | - Laura Carlini
- Sciences Department Roma Tre University of Rome, via della Vasca navale 79, 00146 Rome Italy.
| | - Simone Amatori
- Chemistry Department Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - Marina Porchia
- ICMATE, National Research Council (CNR), Corso Stati Uniti, 4-35127 Padua, Italy.
| | - Francesco Tisato
- ICMATE, National Research Council (CNR), Corso Stati Uniti, 4-35127 Padua, Italy.
| | - Federica Bondino
- IOM-CNR Laboratorio TASC, SS 14, km 163,5 Basovizza, I-34149 Trieste, Italy.
| | - Elena Magnano
- IOM-CNR Laboratorio TASC, SS 14, km 163,5 Basovizza, I-34149 Trieste, Italy.
| | - Maura Pellei
- School of Science and Technology, University of Camerino, 62032 Camerino (MC) Italy.
| | - Carlo Santini
- School of Science and Technology, University of Camerino, 62032 Camerino (MC) Italy.
| |
Collapse
|
21
|
Wang S, Wang Z, Tang N, Liu C, He S, Liu B, Qu H, Duan X, Pang W, Wang Y. Hierarchical assembly of gold nanorod stripe patterns for sensing and cells alignment. NANOTECHNOLOGY 2019; 30:175302. [PMID: 30634179 DOI: 10.1088/1361-6528/aafddd] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hierarchical assemblies of nanomaterial superstructures with controlled orientation affords a multitude of novel properties of plasmonics and broad applications. Yet constructing multi-functional superstructures with nanoparticles positioned in desired locations remains challenging. Herein, gold nanorods (GNRs) assembled in stripe patterns with controlled orientation and structures in millimeter scale for versatile application have been achieved. Applications of patterned GNRs in sensing enhancement and engineering mammalian cells alignment are investigated experimentally. The performance of patterned GNRs in surface enhanced Raman scattering (SERS) and electrical sensing are found in orientational dependence. The SERS signals of vertically arranged GNR arrays exhibit double the folder intensity than those horizontally arranged. In contrast, the horizontally arranged GNRs exhibit twice as much electrical conductivity. The system is further explored to pattern mammalian cells. For the first time, we reveal the nanostructured topography of GNR confined cells to a specific region, and direct the adhesion and extension of living cells, which opens up broad applications in tissue engineering and biosensing.
Collapse
Affiliation(s)
- Shuang Wang
- State Key Laboratory of Precision Measuring Technology & Instruments, School of Precision Instruments and Optoelectronics Engineering, Nanchang Institute for Microtechnology, Tianjin University, 300072, People's Republic of China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Khanal BP, Zubarev ER. Chemical Transformation of Nanorods to Nanowires: Reversible Growth and Dissolution of Anisotropic Gold Nanostructures. ACS NANO 2019; 13:2370-2378. [PMID: 30753055 DOI: 10.1021/acsnano.8b09203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This manuscript describes a reversible wet chemical process for the tip-selective one-dimensional (1D) growth and dissolution of gold nanorods (AuNRs) and gold nanowires (AuNWs). Tip-selective dissolution was achieved by oxidation of AuNRs with a Au(III)/CTAB complex, whereas the growth of AuNRs was carried out by the reduction of Au(I) ions on the AuNR surface with a mild reducing agent, ascorbic acid (AA). Both the dissolution and growth processes are highly tip selective and proceed exclusively in one dimension. A decrease in the aspect ratio (AR) of AuNRs during the dissolution resulted in a blue shift in the longitudinal plasmon band (LPB) position, and red shifts in the LPB position were achieved by increasing the AR by 1D growth of AuNRs. Both growth and dissolution processes are fully controllable and can be stopped and resumed at any given time when the desired AR and/or LPB position is achieved. In addition, the tip-selective 1D growth of AuNRs can be continued with the additional supply of Au(I)/CTAB/AA solution to produce extremely long AuNWs.
Collapse
Affiliation(s)
- Bishnu P Khanal
- Department of Chemistry , Rice University , 6100 Main Street , Houston , Texas 77005 , United States
| | - Eugene R Zubarev
- Department of Chemistry , Rice University , 6100 Main Street , Houston , Texas 77005 , United States
| |
Collapse
|
23
|
Mahato K, Nagpal S, Shah MA, Srivastava A, Maurya PK, Roy S, Jaiswal A, Singh R, Chandra P. Gold nanoparticle surface engineering strategies and their applications in biomedicine and diagnostics. 3 Biotech 2019; 9:57. [PMID: 30729081 PMCID: PMC6352626 DOI: 10.1007/s13205-019-1577-z] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 01/12/2019] [Indexed: 01/13/2023] Open
Abstract
Gold nanoparticles (AuNPs) have found a wide range of biomedical and environmental monitoring applications (viz. drug delivery, diagnostics, biosensing, bio-imaging, theranostics, and hazardous chemical sensing) due to their excellent optoelectronic and enhanced physico-chemical properties. The modulation of these properties is done by functionalizing them with the synthesized AuNPs with polymers, surfactants, ligands, drugs, proteins, peptides, or oligonucleotides for attaining the target specificity, selectivity and sensitivity for their various applications in diagnostics, prognostics, and therapeutics. This review intends to highlight the contribution of such AuNPs in state-of-the-art ventures of diverse biomedical applications. Therefore, a brief discussion on the synthesis of AuNPs has been summarized prior to comprehensive detailing of their surface modification strategies and the applications. Here in, we have discussed various ways of AuNPs functionalization including thiol, phosphene, amine, polymer and silica mediated passivation strategies. Thereafter, the implications of these passivated AuNPs in sensing, surface-enhanced Raman spectroscopy (SERS), bioimaging, drug delivery, and theranostics have been extensively discussed with the a number of illustrations.
Collapse
Affiliation(s)
- Kuldeep Mahato
- Laboratory of Bio-Physio Sensors and Nanobioengineering, Department of Bioscience and Bioengineering, Indian Institute of Technology, Guwahati, Guwahati, 781039 Assam India
| | - Sahil Nagpal
- Technische Universität Dresden, Tatzberg 47-49, 01307 Dresden, Germany
| | - Mahero Ayesha Shah
- Julius Maximilians Universität Würzburg, Faculty of medicine Uniklinik, Josef-Schneider-Str. 2, 97080 Würzburg, Germany
| | - Ananya Srivastava
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Guwahati, India
| | - Pawan Kumar Maurya
- Department of Biochemistry, Central University of Haryana Mahendergarh, Haryana, 123031 India
| | - Shounak Roy
- School of Basic Sciences, Indian Institute of Technology Mandi, Mandi, Himachal Pradesh 175001 India
| | - Amit Jaiswal
- School of Basic Sciences, Indian Institute of Technology Mandi, Mandi, Himachal Pradesh 175001 India
| | - Renu Singh
- Department of Bioproducts and Biosystems Engineering, University of Minnesota, Twin Cities 2004 Folwell Ave, Saint Paul, MN 55108 USA
| | - Pranjal Chandra
- Laboratory of Bio-Physio Sensors and Nanobioengineering, Department of Bioscience and Bioengineering, Indian Institute of Technology, Guwahati, Guwahati, 781039 Assam India
| |
Collapse
|