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Liu H, Zhou Y, Chang W, Zhao X, Hu X, Koh K, Chen H. Construction of a sensitive SWCNTs integrated SPR biosensor for detecting PD-L1 + exosomes based on Fe 3O 4@TiO 2 specific enrichment and signal amplification. Biosens Bioelectron 2024; 262:116527. [PMID: 38941687 DOI: 10.1016/j.bios.2024.116527] [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: 01/26/2024] [Revised: 06/18/2024] [Accepted: 06/23/2024] [Indexed: 06/30/2024]
Abstract
Programmed cell death-ligand 1 positive (PD-L1+) exosomes play a crucial role in the realm of cancer diagnosis and treatment. Nevertheless, due to the intricate nature of biological specimens, coupled with the heterogeneity, low refractive index (RI), and scant surface coverage density of exosomes, traditional surface plasmon resonance (SPR) sensors still do not meet clinical detection requirements. This study utilizes the exceptional electrical and optical attributes of single-walled carbon nanotubes (SWCNTs) as the substrate for SPR sensing, thereby markedly enhancing sensitivity. Furthermore, sp2 hybridized SWCNTs have the ability to load specific recognition elements. Additionally, through the coordination interaction of Ti with phosphate groups and the ferromagnetism of Fe3O4, efficient exosomes isolation and enrichment in complex samples are achievable with the aid of an external magnetic field. Owing to the high-quality and high-RI of Fe3O4@TiO2, the response signal experiences amplification, thus further improving the performance of the SPR biosensor. The linear range of the SPR biosensor constructed by this method is 1.0 × 103 to 1.0 × 107 particles/mL, with a limit of detection (LOD) of 31.9 particles/mL. In the analysis of clinical serum samples, cancer patients can be differentiated from healthy individuals with an Area Under Curve (AUC) of 0.9835. This study not only establishes a novel platform for exosomes direct detection but also offers new perspectives for the sensitive detection of other biomarkers.
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Affiliation(s)
- Hezhen Liu
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Yangyang Zhou
- School of Medicine, Shanghai University, Shanghai, 200444, PR China; School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China
| | - Weiwei Chang
- Department of Physics, Shanghai University, Shanghai, 200444, PR China
| | - Xinluo Zhao
- Department of Physics, Shanghai University, Shanghai, 200444, PR China
| | - Xiaojun Hu
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China.
| | - Kwangnak Koh
- Institute of General Education, Pusan National University, Busan, 609-735, Republic of Korea.
| | - Hongxia Chen
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China.
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2
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Zhou M, Geng Z. Integrated LSPR Biosensing Signal Processing Strategy and Visualization Implementation. MICROMACHINES 2024; 15:631. [PMID: 38793204 PMCID: PMC11123047 DOI: 10.3390/mi15050631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/06/2024] [Accepted: 05/06/2024] [Indexed: 05/26/2024]
Abstract
The LSPR biosensor chip is a groundbreaking tool popular in laboratory settings for identifying disease markers. However, its use in clinical environments is not as widespread. One notable gap is the lack of a universal signal processing tool for LSPR biosensing. To escalate its precision, there is an emerging need for software that not only optimizes signal processing but also incorporates self-verification functionalities within LSPR biochemical sensors. Enter the visual LSPR sensor software-an innovative platform that processes real-time transmission or reflection spectra. This advanced software adeptly captures the nuanced structural changes at the nanostructure interface prompted by environmental fluctuations. It diligently records and computes a suite of parameters, including the resonance wavelength shift, full width at half maximum, sensitivity, and quality factor. These features empower users to tailor processing algorithms for each data capture session. Transcending traditional instruments, this method accommodates a multitude of parameters and ensures robust result validation while tactfully navigating nanostructure morphology complexities. Forsaking third-party tool dependencies, the software tackles challenges of precision and cost-effectiveness head-on, heralding a significant leap forward in nanophotonics, especially for high-throughput LSPR biosensing applications. This user-centric innovation marks substantial progress in biochemical detection. It is designed to serve both researchers and practitioners in the field of nanophotonic sensing technology, simplifying complexity while enhancing reliability and efficiency.
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Affiliation(s)
- Mixing Zhou
- School of Information Engineering, Minzu University of China, Beijing 100081, China;
| | - Zhaoxin Geng
- School of Information Engineering, Minzu University of China, Beijing 100081, China;
- Key Laboratory of Ethnic Language Intelligent Analysis and Security Governance of MOE, Minzu University of China, Beijing 100081, China
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Shen J, Tong A, Zhong X, Yin C, Ahmad B, Wu Z, Yang Y, Tong C. Near-infrared laser-assisted Ag@Chi-PB nanocompounds for synergistically eradicating multidrug-resistant bacteria and promoting diabetic abscess healing. Biomed Pharmacother 2024; 173:116311. [PMID: 38412718 DOI: 10.1016/j.biopha.2024.116311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/14/2024] [Accepted: 02/17/2024] [Indexed: 02/29/2024] Open
Abstract
Chronic wound infections, particularly multidrug-resistant microbe-caused infections, have imposed severe challenges in clinical administration. The therapeutic effectiveness of the current strategy using conventional antibiotics is extremely unsatisfactory. The development of novel treatment strategies to inhibit the infections caused by multidrug-resistant bacteria is highly desired. In this work, based on the combination of nanocompounds with the assistance of NIR laser, an antibacterial strategy was designed for MRSA-infected abscesses in diabetic mice. The nanocompounds named Ag@Chi-PB were prepared by using chitosan-coated Prussian blue (PB) as a nanocarrier for silver nanoparticles anchoring. Combined with near-infrared (NIR) laser, the nanocompounds were more efficient at killing Escherichia coli (E. coli) and Methicillin-resistant staphyllococcus aureus (MRSA) in vitro. Notably, MRSA was significantly removed in vivo and promoted diabetic abscess healing by the combined therapy of this nanocompound and NIR laser, owing to the synergistic antibacterial effect of photothermal therapy and release of Ag+. Meanwhile, the nanocompound showed satisfactory biocompatibility and superior biosafety. Collectively, the combination therapy of this nanocompound with the assistance of NIR laser may represent a promising strategy for clinical anti-infection.
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Affiliation(s)
- Jingyi Shen
- Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, School of Medicine, Hunan Normal University, Engineering Research Center of Reproduction and Translational Medicine of Hunan Province Changsha 410013, PR China
| | - Aidi Tong
- Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, School of Medicine, Hunan Normal University, Engineering Research Center of Reproduction and Translational Medicine of Hunan Province Changsha 410013, PR China
| | - Xianghua Zhong
- Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, School of Medicine, Hunan Normal University, Engineering Research Center of Reproduction and Translational Medicine of Hunan Province Changsha 410013, PR China; College of Biology, South China University of Technology, Guangzhou 10561, PR China
| | - Caiyun Yin
- College of Biology, Hunan University, Changsha 410082, PR China
| | - Bilal Ahmad
- College of Biology, Hunan University, Changsha 410082, PR China
| | - Zhou Wu
- College of Biology, Hunan University, Changsha 410082, PR China
| | - Yuejun Yang
- Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, School of Medicine, Hunan Normal University, Engineering Research Center of Reproduction and Translational Medicine of Hunan Province Changsha 410013, PR China.
| | - Chunyi Tong
- College of Biology, Hunan University, Changsha 410082, PR China.
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Yan X, Li K, Xie TQ, Jin XK, Zhang C, Li QR, Feng J, Liu CJ, Zhang XZ. Bioorthogonal "Click and Release" Reaction-Triggered Aggregation of Gold Nanoparticles Combined with Released Lonidamine for Enhanced Cancer Photothermal Therapy. Angew Chem Int Ed Engl 2024; 63:e202318539. [PMID: 38303647 DOI: 10.1002/anie.202318539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/26/2024] [Accepted: 02/01/2024] [Indexed: 02/03/2024]
Abstract
Cancer has been the most deadly disease, and 13 million cancer casualties are estimated to occur each year by 2030. Gold nanoparticles (AuNPs)-based photothermal therapy (PTT) has attracted great interest due to its high spatiotemporal controllability and noninvasiveness. Due to the trade-off between particle size and photothermal efficiency of AuNPs, rational design is needed to realize aggregation of AuNPs into larger particles with desirable NIR adsorption in tumor site. Exploiting the bioorthogonal "Click and Release" (BCR) reaction between iminosydnone and cycloalkyne, aggregation of AuNPs can be achieved and attractively accompanied by the release of chemotherapeutic drug purposed to photothermal synergizing. We synthesize iminosydnone-lonidamine (ImLND) as a prodrug and choose dibenzocyclooctyne (DBCO) as the trigger of BCR reaction. A PEGylated AuNPs-based two-component nanoplatform consisting of prodrug-loaded AuNPs-ImLND and tumor-targeting peptide RGD-conjugated AuNPs-DBCO-RGD is designed. In the therapeutic regimen, AuNPs-DBCO-RGD are intravenously injected first for tumor-specific enrichment and retention. Once the arrival of AuNPs-ImLND injected later at tumor site, highly photothermally active nanoaggregates of AuNPs are formed via the BCR reaction between ImLND and DBCO. The simultaneous release of lonidamine further enhanced the therapeutic performance by sensitizing cancer cells to PTT.
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Affiliation(s)
- Xiao Yan
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
| | - Ke Li
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
| | - Tian-Qiu Xie
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
| | - Xiao-Kang Jin
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
| | - Cheng Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
| | - Qian-Ru Li
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
| | - Jun Feng
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
| | - Chuan-Jun Liu
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
| | - Xian-Zheng Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
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Juma MW, Birech Z, Mwenze NM, Ondieki AM, Maaza M, Mokhotjwa SD. Localized surface plasmon resonance sensing of Trenbolone acetate dopant using silver nanoparticles. Sci Rep 2024; 14:5721. [PMID: 38459089 PMCID: PMC10923944 DOI: 10.1038/s41598-024-56456-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 03/06/2024] [Indexed: 03/10/2024] Open
Abstract
In this work, localized surface plasmon resonance (LSPR) sensing as applicable in the detection of Trenbolone acetate dopant is demonstrated. We show that the LSPR of the Trenbolone acetate/silver nanoparticle (Tren Ac/AgNPs) complex is sensitive to changes in the adsorbent concentration. The results show an average redshift of + 18 nm in the LSPR peak with variations in intensity and broadening behavior of the LSPR band of the Tren Ac/AgNPs complex. AgNPs were synthesized using laser ablation in liquid (LAL) technique with water as the solvent. UV-Vis spectroscopy was used for absorbance measurements and particle size and morphology were monitored using scanning electron microscopy (SEM). The aggregation behavior of the Tren Ac/AgNPs complex was monitored using energy-dispersive X-ray spectroscopy (EDS). Molecular Electrostatic Potential (MEP) and the HOMO-LUMO orbitals of the optimized Trenbolone acetate structure were obtained using Density Function Theory (DFT). The molecule was optimized at the B3LYP level of theory using the 6-311 basis set carried out using the Gaussian 09 software package. The results showed that O2- is Trenbolone acetate's active site that would interact with Ag+ to form a complex that would influence the plasmon behavior. The results presented in this work demonstrate the feasibility of LSPR for anabolic androgenic steroid detection.
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Affiliation(s)
- Moses Wabwile Juma
- UNESCO-UNISA Africa Chair in Nanoscience and Nanotechnology (U2ACN2), College of Graduate Studies, University of South Africa (UNISA), Pretoria, South Africa.
- NANOAFNET, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Cape Town, 7129, Western Cape, South Africa.
- Department of Physics, University of South Africa, Muckleneuk Ridge, Pretoria, 0001, South Africa.
- Laser Physics and Spectroscopy Research Group, Department of Physics, University of Nairobi, P.O Box 30197-00100, Nairobi, Kenya.
| | - Zephania Birech
- Laser Physics and Spectroscopy Research Group, Department of Physics, University of Nairobi, P.O Box 30197-00100, Nairobi, Kenya
| | - Nancy Mwikali Mwenze
- UNESCO-UNISA Africa Chair in Nanoscience and Nanotechnology (U2ACN2), College of Graduate Studies, University of South Africa (UNISA), Pretoria, South Africa
- NANOAFNET, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Cape Town, 7129, Western Cape, South Africa
- Department of Physics, University of South Africa, Muckleneuk Ridge, Pretoria, 0001, South Africa
- Laser Physics and Spectroscopy Research Group, Department of Physics, University of Nairobi, P.O Box 30197-00100, Nairobi, Kenya
| | - Annah Moraa Ondieki
- Laser Physics and Spectroscopy Research Group, Department of Physics, University of Nairobi, P.O Box 30197-00100, Nairobi, Kenya
| | - Malik Maaza
- UNESCO-UNISA Africa Chair in Nanoscience and Nanotechnology (U2ACN2), College of Graduate Studies, University of South Africa (UNISA), Pretoria, South Africa
- NANOAFNET, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Cape Town, 7129, Western Cape, South Africa
- Department of Physics, University of South Africa, Muckleneuk Ridge, Pretoria, 0001, South Africa
| | - Simon Dhlamini Mokhotjwa
- Department of Physics, University of South Africa, Muckleneuk Ridge, Pretoria, 0001, South Africa
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Itagaki S, Nakao A, Nakamura S, Fujita M, Nishii S, Yamamoto Y, Sadanaga Y, Shiigi H. Simultaneous Electrochemical Detection of Multiple Bacterial Species Using Metal-Organic Nanohybrids. Anal Chem 2024; 96:3787-3793. [PMID: 38308565 DOI: 10.1021/acs.analchem.3c04587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2024]
Abstract
Organic metallic nanohybrids (NHs), in which many small metal nanoparticles are encapsulated within a conductive polymer matrix, are useful as sensitive electrochemical labels because the constituents produce characteristic oxidation current responses. Gold NHs, consisting of gold nanoparticles and poly(m-toluidine), and copper NHs, consisting of copper nanoparticles and polyaniline, did not interfere with each other in terms of the electrochemical signals obtained on the same electrode. Antibodies were introduced into these NHs to function as electrochemical labels for targeting specific bacteria. Electrochemical measurements using screen-printed electrodes dry-fixed with NH-labeled bacterial cells enabled the estimation of bacterial species and number within minutes, based on the distinct current response of the labels. Our proposed method achieved simultaneous detection of enterohemorrhagic Escherichia coli and Staphylococcus aureus in a real sample. These NHs will be powerful tools as electrochemical labels and are expected to be useful for rapid testing in food and drug-related manufacturing sites.
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Affiliation(s)
- Satohiro Itagaki
- Department of Applied Chemistry, Osaka Metropolitan University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
| | - Akihiro Nakao
- Department of Applied Chemistry, Osaka Metropolitan University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
| | - Shogo Nakamura
- Department of Applied Chemistry, Osaka Metropolitan University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
| | - Masashi Fujita
- Department of Applied Chemistry, Osaka Metropolitan University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
- EC Frontier Co. Ltd., 3-2-30 Hikaridai, Seika, Soraku, Kyoto 619-0237, Japan
| | - Shigeki Nishii
- Department of Applied Chemistry, Osaka Metropolitan University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
| | - Yojiro Yamamoto
- Department of Applied Chemistry, Osaka Metropolitan University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
- Green Chem. Inc., 19-19 Tsuruta, Nishi, Sakai, Osaka 593-8323, Japan
| | - Yasuhiro Sadanaga
- Department of Applied Chemistry, Osaka Metropolitan University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
| | - Hiroshi Shiigi
- Department of Applied Chemistry, Osaka Metropolitan University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
- Osaka International Research Center for Infectious Diseases, Osaka Metropolitan University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
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