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Cheng K, Wan S, Yang JW, Chen SY, Wang HL, Xu CH, Qiao SH, Li XR, Li Y. Applications of Biosensors in Bladder Cancer. Crit Rev Anal Chem 2024:1-20. [PMID: 38978228 DOI: 10.1080/10408347.2024.2373923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Bladder cancer (BC) is the tenth most common cancer globally, predominantly affecting men. Early detection and treatment are crucial due to high recurrence rates and poor prognosis for advanced stages. Traditional diagnostic methods like cystoscopy and imaging have limitations, leading to the exploration of noninvasive methods such as liquid biopsy. This review highlights the application of biosensors in BC, including electrochemical and optical sensors for detecting tumor markers like proteins, nucleic acids, and other biomolecules, noting their clinical relevance. Emerging therapeutic approaches, such as antibody-drug conjugates, targeted therapy, immunotherapy, and gene therapy, are also explored, the role of biosensors in detecting corresponding biomarkers to guide these treatments is examined. Finally, the review addresses the current challenges and future directions for biosensor applications in BC, highlighting the need for large-scale clinical trials and the integration of advanced technologies like deep learning to enhance diagnostic accuracy and treatment efficacy.
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Affiliation(s)
- Kun Cheng
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, P.R. China
- Gansu Province Clinical Research Center for Urology, Lanzhou, P.R. China
| | - Shun Wan
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, P.R. China
- Gansu Province Clinical Research Center for Urology, Lanzhou, P.R. China
| | - Jian-Wei Yang
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, P.R. China
- Gansu Province Clinical Research Center for Urology, Lanzhou, P.R. China
| | - Si-Yu Chen
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, P.R. China
- Gansu Province Clinical Research Center for Urology, Lanzhou, P.R. China
| | - Hai-Long Wang
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, P.R. China
- Gansu Province Clinical Research Center for Urology, Lanzhou, P.R. China
| | - Chang-Hong Xu
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, P.R. China
- Gansu Province Clinical Research Center for Urology, Lanzhou, P.R. China
| | - Si-Hang Qiao
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, P.R. China
- Gansu Province Clinical Research Center for Urology, Lanzhou, P.R. China
| | - Xiao-Ran Li
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, P.R. China
- Gansu Province Clinical Research Center for Urology, Lanzhou, P.R. China
| | - Yang Li
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, P.R. China
- Gansu Province Clinical Research Center for Urology, Lanzhou, P.R. China
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2
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Wang Y, Xianyu Y. Tuning the plasmonic and catalytic signals of Au@Pt nanoparticles for dual-mode biosensing. Biosens Bioelectron 2023; 237:115553. [PMID: 37536228 DOI: 10.1016/j.bios.2023.115553] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/20/2023] [Accepted: 07/25/2023] [Indexed: 08/05/2023]
Abstract
Dual-mode biosensors have gained great attention due to their excellent detection accuracy provided by the mutual verification of output signals. However, current strategies for dual-mode sensing mainly rely on a signal probe exhibiting dual properties that may encounter unreliability. Herein, we report a dual-mode biosensing strategy by modulating the plasmonic and catalytic activities of nanoparticles through a surface growing approach. Ascorbic acid enables the growing of Au shell on Au@Pt NPs to tune both their peroxidase-like activity and plasmonic signal. Enzyme-catalyzed reactions can generate ascorbic acid to modulate the plasmonic and catalytic activities of nanoparticles. Combined with enzyme-linked immunosorbent assay, it enables dual-mode immunoassays of carbofuran with both a colorimetric readout by a spectrometer down to 0.1 ppb and a naked-eye readout of 5 ppb. This dual-mode biosensing technique advantages in tunable sensitivity and robustness, holding promise as an analytical platform for biomedical diagnosis and food safety.
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Affiliation(s)
- Yidan Wang
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Biosystems Engineering and Food Science, Zhejiang University, 310058, Hangzhou, China
| | - Yunlei Xianyu
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Biosystems Engineering and Food Science, Zhejiang University, 310058, Hangzhou, China; Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Sir Run Run Shaw Hospital, 310016, Hangzhou, China; Future Food Laboratory, Innovation Center of Yangtze River Delta, Zhejiang University, 314100, Jiaxing, China; Ningbo Research Institute, Zhejiang University, 315100, Ningbo, China.
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3
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Li G, Wu S, Chen W, Duan X, Sun X, Li S, Mai Z, Wu W, Zeng G, Liu H, Chen T. Designing Intelligent Nanomaterials to Achieve Highly Sensitive Diagnoses and Multimodality Therapy of Bladder Cancer. SMALL METHODS 2023; 7:e2201313. [PMID: 36599700 DOI: 10.1002/smtd.202201313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/22/2022] [Indexed: 06/17/2023]
Abstract
Bladder cancer (BC) is among the most common malignant tumors of the genitourinary system worldwide. In recent years, the rate of BC incidence has increased, and the recurrence rate is high, resulting in poor quality of life for patients. Therefore, how to develop an effective method to achieve synchronous precise diagnoses and BC therapies is a difficult problem to solve clinically. Previous reports usually focus on the role of nanomaterials as drug delivery carriers, while a summary of the functional design and application of nanomaterials is lacking. Summarizing the application of functional nanomaterials in high-sensitivity diagnosis and multimodality therapy of BC is urgently needed. This review summarizes the application of nanotechnology in BC diagnosis, including the application of nanotechnology in the sensoring of BC biomarkers and their role in monitoring BC. In addition, conventional and combination therapies strategy in potential BC therapy are analyzed. Moreover, different kinds of nanomaterials in BC multimodal therapy according to pathological features of BC are also outlined. The goal of this review is to present an overview of the application of nanomaterials in the theranostics of BC to provide guidance for the application of functional nanomaterials to precisely diagnose and treat BC.
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Affiliation(s)
- Guanlin Li
- Department of Urology, Guangzhou Institute of Urology, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, P. R. China
| | - Sicheng Wu
- Department of Urology, Guangzhou Institute of Urology, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, P. R. China
| | - Wenzhe Chen
- Department of Urology, Guangzhou Institute of Urology, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, P. R. China
| | - Xiaolu Duan
- Department of Urology, Guangzhou Institute of Urology, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, P. R. China
| | - Xinyuan Sun
- Department of Urology, Guangzhou Institute of Urology, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, P. R. China
| | - Shujue Li
- Department of Urology, Guangzhou Institute of Urology, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, P. R. China
| | - Zanlin Mai
- Department of Urology, Guangzhou Institute of Urology, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, P. R. China
| | - Wenzheng Wu
- Department of Urology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, P. R. China
| | - Guohua Zeng
- Department of Urology, Guangzhou Institute of Urology, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, P. R. China
| | - Hongxing Liu
- Department of Urology, Guangzhou Institute of Urology, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, P. R. China
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, 510631, P. R. China
| | - Tianfeng Chen
- Department of Urology, Guangzhou Institute of Urology, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, P. R. China
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, 510631, P. R. China
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Perez Sirkin YA, de Maio MV, Tagliazucchi M. Mechanisms of Enzymatic Transduction in Nanochannel Biosensors. Chem Asian J 2022; 17:e202200588. [PMID: 35831237 DOI: 10.1002/asia.202200588] [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: 06/03/2022] [Revised: 07/08/2022] [Indexed: 11/09/2022]
Abstract
The immobilization of enzymes in solid-state nanochannels is a new avenue for the design of biosensors with outstanding selectivity and sensitivity. This work reports the first theoretical model of an enzymatic nanochannel biosensor. The model is applied to the system previously experimentally studied by Lin, et al. (Anal. Chem. 2014, 86, 10546): a hourglass nanochannel modified by glucose oxidase for the detection of glucose. Our predictions are in good agreement with experimental observations as a function of the applied potential, pH and glucose concentration. The sensing mechanism results from the combination of three processes: i) the establishment of a steady-state proton concentration gradient due to a reaction-diffusion mechanism, ii) the effect of that gradient on the charge of the adsorbed enzymes and native surface groups, and iii) the effect of the resulting surface charge on the ionic current. Strategies to improve the sensor performance based on this mechanism are identified and discussed.
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Affiliation(s)
- Yamila A Perez Sirkin
- University of Buenos Aires: Universidad de Buenos Aires, Departamento de Química Inorgánica, Analítica y Química-Física, ARGENTINA
| | - Manuel Vigil de Maio
- University of Buenos Aires: Universidad de Buenos Aires, Departamento de Química Inorgánica, Analítica y Química-Física, ARGENTINA
| | - Mario Tagliazucchi
- University of Buenos Aires, Inorganic and Physical Chemistry, Ciudad Universitaria, C1428, Buenos Aires, ARGENTINA
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Xu H, Guo J, Li C, Zhao J, Gao Z, Song YY. Nanoarchitectonics of a MOF-in-Nanochannel (HKUST-1/TiO 2) Membrane for Multitarget Selective Enrichment and Staged Recovery. ACS APPLIED MATERIALS & INTERFACES 2022; 14:22006-22015. [PMID: 35533013 DOI: 10.1021/acsami.2c05296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Enrichment and separation of specific endogenous molecules are essential for disease diagnosis and the pharmaceutical industry. Although many solid sorbents have been developed for target molecule enrichment, simultaneous separation of multitargets is still a challenge for adsorbents. In this study, we develop a multitarget selective sorbent based on a nanochannel membrane prepared by the anodization of a Ti-Cu alloy. The in situ growth of a metal-organic framework (MOF, herein using Cu-based HKUST-1) in the nanochannels enables the resulting MOF-in-nanochannel membrane to act as a nanofilter. Benefitting from the size-exclusion effect of MOFs and the distinct surface characteristics of each component in the HKUST-1/TiO2 nanochannels, the as-proposed membranes can be simply operated as a filter and exhibit satisfactory selectivities and enrichment capacities in the separation of aromatic amino acids, histidine-rich proteins, and phosphoproteins. More importantly, the adsorbed multitargets can be further controllably released from the membrane in a sequence via a staged recovery process. The use of this system is envisioned to provide an innovative and potential design for efficient sorption media for the selective enrichment and staged separation of specific biomolecules.
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Affiliation(s)
- Huijie Xu
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Junli Guo
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Chaowei Li
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Junjian Zhao
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Zhida Gao
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Yan-Yan Song
- College of Sciences, Northeastern University, Shenyang 110004, China
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6
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Hu Y, Zhu L, Mei X, Liu J, Yao Z, Li Y. Dual-Mode Sensing Platform for Electrochemiluminescence and Colorimetry Detection Based on a Closed Bipolar Electrode. Anal Chem 2021; 93:12367-12373. [PMID: 34469106 DOI: 10.1021/acs.analchem.1c02184] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Development of sensors uniting different sensing principles is in line with the concept of reliable, comprehensive, and diversified equipment construction. However, the current exploration in this field is obstructed by compromise of reaction conditions and inevitable mutual interference arising from different sensing modes. This work reported a closed bipolar electrode (c-BPE) strategy for dual-modality detection or dual-target detection. To this end, a c-BPE sensing platform installed in physically separated anode and cathode compartments was well designed and carefully optimized. If luminol was present in the anode section and Prussian blue (PB) was at the cathode part, single stimulation could realize electrochemiluminescence (ECL) from luminol at the anode and conversion of PB to Prussian white (PW) at the cathode. The latter reaction helped elevate the ECL signal and also prepared for colorimetric detection as color change from PW to PB under the trigger of oxidant (like H2O2) was used to track the content of the oxidant. Thus, dual signals were obtained for dual-modality detection of single target or the detection of different targets was realized at different poles. Detection of glucose was carried out to validate the application for dual-modality detection, while VLDL/AChE and NADH/H2O2 assays illustrated the potential of dual-target detection. The proposed platform possesses outstanding sensing performance including selectivity, repeatability, long-term stability, accuracy, and so forth. This work implements a breakthrough in designing dual-mode sensors and is expected to present a rational basis for development of a diversified sensing platform.
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Affiliation(s)
- Yue Hu
- Flexible Printed Electronics Technology Center and College of Science, Harbin Institute of Technology, Shenzhen 518055, Guangdong, P. R. China.,School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, P. R. China
| | - Liang Zhu
- Flexible Printed Electronics Technology Center and College of Science, Harbin Institute of Technology, Shenzhen 518055, Guangdong, P. R. China.,School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, P. R. China
| | - Xuecui Mei
- Flexible Printed Electronics Technology Center and College of Science, Harbin Institute of Technology, Shenzhen 518055, Guangdong, P. R. China.,School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, P. R. China
| | - Jinsen Liu
- Shenzhen ENCO Instrument Co., Ltd, Shenzhen 518000, China
| | - Zhongping Yao
- ∥State Key Laboratory of Chemical Biology and Drug Discovery, Research Institute for Future Food and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong, P. R. China
| | - Yingchun Li
- Flexible Printed Electronics Technology Center and College of Science, Harbin Institute of Technology, Shenzhen 518055, Guangdong, P. R. China.,School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, P. R. China.,College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, Guangdong, P. R. China
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7
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Ding X, Wu Z, Li Z, Xia X. Electric Field Driven Surface Ion Transport in Hydrophobic Nanopores
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Xin‐Lei Ding
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University Nanjing Jiangsu 210023 China
| | - Zeng‐Qiang Wu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University Nanjing Jiangsu 210023 China
| | - Zhong‐Qiu Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University Nanjing Jiangsu 210023 China
| | - Xing‐Hua Xia
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University Nanjing Jiangsu 210023 China
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Guan Q, Guo H, Xue R, Wang M, Zhao X, Fan T, Yang W, Xu M, Yang W. Electrochemical sensor based on covalent organic frameworks-MWCNT-NH2/AuNPs for simultaneous detection of dopamine and uric acid. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2020.114932] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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9
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Wang D, Xue W, Ren X, Xu Z. A review on sensing mechanisms and strategies for telomerase activity detection. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Dai Z, Su Y, Gao Z, Song YY. “Black body” effect of carbon nanospheres: A broadband energy acceptor in constructing electrochemiluminescence resonance energy transfer for biosensing. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114727] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yang L, Zhao C, Xu J, Guo J, Gao Z, Song YY. Boosting the Raman signal on a semiconductor-nanotube membrane for reporting photocatalytic reactions on site. Chem Commun (Camb) 2020; 56:10333-10336. [PMID: 32760961 DOI: 10.1039/d0cc04396f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A smooth TiO2 nanotube-based membrane (S-TiNM) is demonstrated to be effective in reducing the Raman-scattering loss in 3D porous structures. Using the photocatalytic reduction of 4-nitrothiophenol as a model, the S-TiNMs show promising potential as sensitive SERS substrates to investigate photocatalytic reactions on site.
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Affiliation(s)
- Lingling Yang
- College of Sciences, Northeastern University, Shenyang, 110004, China.
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12
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Dai Z, Guo J, Xu J, Liu C, Gao Z, Song YY. Target-Driven Nanozyme Growth in TiO 2 Nanochannels for Improving Selectivity in Electrochemical Biosensing. Anal Chem 2020; 92:10033-10041. [PMID: 32603589 DOI: 10.1021/acs.analchem.0c01815] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nanozymes have been used in colorimetric and electrochemical sensing because of their low cost and high stability. However, the wide applications of nanozymes in sensing devices are largely limited due to their poor selectivity. In this study, unlike traditional methods using prepared nanozymes for target detection, we designed a target-driven nanozyme growth strategy in TiO2 nanochannels to detect analytes. Using telomerase as an example, the established recognition event was used to expand the photocatalytic activity of TiO2 to visible-light region, thus triggering Prussian blue nanoparticle (PBNP) growth in visible light. Benefiting from the peroxidase (POD)-like activity of PBNPs, the uncharged 3,5,3',5'-tetramethylbenzidine (TMB) is oxidized to positively charged oxTMB, which induces significant ionic transport changes in nanochannels, and thus in turn provides information about telomerase activity. Such a nanozyme-triggered sensing system exhibited excellent performance in telomerase detection in urine specimens from patients with bladder cancer. This innovative target-driven signal generation strategy might provide a new method for applying nanozymes in developing sensitive, rapid, and accurate biological sensing systems.
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Affiliation(s)
- Zhenqing Dai
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Junli Guo
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Jing Xu
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Chen Liu
- School of Electronic Engineering, Xi'an University of Posts and Telecommunication, Xi'an 710121, China
| | - Zhida Gao
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Yan-Yan Song
- College of Sciences, Northeastern University, Shenyang 110004, China
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Hwang I, Riboni F, Gongadze E, Iglič A, Yoo J, So S, Mazare A, Schmuki P. Dye-sensitized TiO 2 nanotube membranes act as a visible-light switchable diffusion gate. NANOSCALE ADVANCES 2019; 1:4844-4852. [PMID: 36133131 PMCID: PMC9418696 DOI: 10.1039/c9na00480g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 10/22/2019] [Indexed: 06/16/2023]
Abstract
Here we report that both-end open anodic TiO2 nanotube membranes, after sensitization with a Ru(ii)-based dye, exhibit visible-light switching properties for flow-through the nanotube channels. Under illumination, the gate is in an open state providing ∼four-times faster permeation of small molecules through the membrane compared to a dark state. Switching is reversible with no apparent dye degradation being observed. Gating is possible not only of permeating dye molecules but also of nanoprobes such as polystyrene nanospheres. Supported by quantitative modelling, we attribute the switching mechanism to light-induced changes of the charge distribution at the dye/TiO2 interface which in turn alters the hydrodynamics within the anodic tube membranes. This demonstrates that these simple dye-sensitized nanotube membranes can be used as an optically addressable flow-through gate in nanofluidics.
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Affiliation(s)
- Imgon Hwang
- Department of Materials Science WW4-LKO, University of Erlangen-Nuremberg Martensstrasse 7 91058 Erlangen Germany
| | - Francesca Riboni
- Department of Materials Science WW4-LKO, University of Erlangen-Nuremberg Martensstrasse 7 91058 Erlangen Germany
- Regional Centre of Advanced Technologies and Materials Šlechtitelů 27 78371 Olomouc Czech Republic
| | - Ekaterina Gongadze
- Laboratory of Biophysics, Faculty of Electrical Engineering, University of Ljubljana Tržaška 25 SI-1000 Ljubljana Slovenia
| | - Aleš Iglič
- Laboratory of Biophysics, Faculty of Electrical Engineering, University of Ljubljana Tržaška 25 SI-1000 Ljubljana Slovenia
- Laboratory of Clinical Biophysics, Faculty of Medicine, University of Ljubljana Zaloška 9 SI-1000 Ljubljana Slovenia
| | - JeongEun Yoo
- Department of Materials Science WW4-LKO, University of Erlangen-Nuremberg Martensstrasse 7 91058 Erlangen Germany
| | - Seulgi So
- Department of Materials Science WW4-LKO, University of Erlangen-Nuremberg Martensstrasse 7 91058 Erlangen Germany
| | - Anca Mazare
- Department of Materials Science WW4-LKO, University of Erlangen-Nuremberg Martensstrasse 7 91058 Erlangen Germany
| | - Patrik Schmuki
- Department of Materials Science WW4-LKO, University of Erlangen-Nuremberg Martensstrasse 7 91058 Erlangen Germany
- Regional Centre of Advanced Technologies and Materials Šlechtitelů 27 78371 Olomouc Czech Republic
- Department of Chemistry, Faculty of Science, King Abdulaziz University P. O. Box 80203 Jeddah 21569 Saudi Arabia
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Yang L, Qu K, Guo J, Xu H, Dai Z, Gao ZD, Song YY. Asymmetric coupling of Au nanospheres on TiO2 nanochannel membranes for NIR-gated artificial ionic nanochannels. Chem Commun (Camb) 2019; 55:14625-14628. [DOI: 10.1039/c9cc08317k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Au nanospheres are selectively formed at one tip of TiO2 nanochannels by combining a photocatalytic reaction with limited penetration of light. The closed–open switching behavior of the temperature-responsive polymer is achieved under NIR irradiation.
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Affiliation(s)
- Lingling Yang
- College of Sciences
- Northeastern University
- Shenyang
- China
| | - Kuanzhi Qu
- College of Sciences
- Northeastern University
- Shenyang
- China
| | - Junli Guo
- College of Sciences
- Northeastern University
- Shenyang
- China
| | - Huijie Xu
- College of Sciences
- Northeastern University
- Shenyang
- China
| | - Zhenqing Dai
- College of Sciences
- Northeastern University
- Shenyang
- China
| | - Zhi-Da Gao
- College of Sciences
- Northeastern University
- Shenyang
- China
| | - Yan-Yan Song
- College of Sciences
- Northeastern University
- Shenyang
- China
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