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Ray P, Pal S, Sarkar A, Sultana F, Basu A, Show B. Oyster Pearl-Shaped Ternary Iron Chalcogenide, FeSe 0.5Te 0.5, Films on FTO through Electrochemical Growth from the Exchange of Chalcogens Boosted the Enzyme-Free Urea-Sensing Ability toward Real Analytes. ACS APPLIED BIO MATERIALS 2024; 7:1621-1642. [PMID: 38430188 DOI: 10.1021/acsabm.3c01086] [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] [Indexed: 03/03/2024]
Abstract
Here, iron chalcogenide thin films were developed for the first time by using the less hazardous electrodeposition technique at optimized conditions on an FTO glass substrate. The chalcogenides have different surface, morphological, structural, and optical properties, as well as an enzyme-free sensing behavior toward urea. Numerous small crystallites of about ∼20 to 25 nm for FeSe, ∼18 to 25 nm for FeTe, and ∼18 to 22 nm in diameter for FeSeTe are observed with partial agglomeration under an electron microscope, having a mixed phase of tetragonal and orthorhombic structures of FeSe, FeTe, and, FeSeTe, respectively. Profilometry, XRD, FE-SEM, HR-TEM, XPS, EDX, UV-vis spectroscopy, and FT-IR spectroscopy were used for the analysis of binary and ternary composite semiconductors, FeSe, FeTe, and FeSeTe, respectively. Electrochemical experiments were conducted with the chalcogenide thin films and urea as the analyte in phosphate-buffered media at a pH of ∼ 7.4 in the concentration range of 3-413 μM. Cyclic voltammetry was performed to determine the sensitivity of the prepared electrode at an optimized scan rate of 50 mV s-1. The electrodeposited chalcogenide films appeared with a low detection limit and satisfactory sensitivity, of which the ternary chalcogenide film has the lowest LOD of 1.16 μM and the maximum sensitivity of 74.22 μA μM-1 cm-2. The transition metal electrode has a very wide range of detection limit of 1.25-2400 μM with a short response time of 4 s. This fabricated biosensor is capable of exhibiting almost 75% of its starting activity after 2 weeks of storage in the freezer at 4 °C. Simple methods of preparation, a cost-effective process, and adequate electrochemical sensing of urea confirm that the prepared sensor is suitable as an enzyme-free urea sensor and can be utilized for future studies.
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Affiliation(s)
- Purbali Ray
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Sunanda Pal
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Abhimanyu Sarkar
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Farhin Sultana
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Arghyadeep Basu
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
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2
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Chen J, Qiu Z, Huang J. Structure and Dynamics of Confined Water Inside Diphenylalanine Peptide Nanotubes. ACS OMEGA 2023; 8:42936-42950. [PMID: 38024738 PMCID: PMC10652825 DOI: 10.1021/acsomega.3c06071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/22/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023]
Abstract
Diphenylalanine (FF) peptides exhibit a unique ability to self-assemble into nanotubes with confined water molecules playing pivotal roles in their structure and function. This study investigates the structure and dynamics of diphenylalanine peptide nanotubes (FFPNTs) using all-atom molecular dynamics (MD) and grand canonical Monte Carlo combined with MD (GCMC/MD) simulations with both the CHARMM additive and Drude polarizable force fields. The occupancy and dynamics of confined water molecules were also examined. It was found that less than 2 confined water molecules per FF help stabilize the FFPNTs on the x-y plane. Analyses of the kinetics of confined water molecules revealed distinctive transport behaviors for bound and free water, and their respective diffusion coefficients were compared. Our results validate the importance of polarizable force field models in studying peptide nanotubes and provide insights into our understanding of nanoconfined water.
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Affiliation(s)
- Jinfeng Chen
- College
of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310027, China
- Key
Laboratory of Structural Biology of Zhejiang Province, School of Life
Sciences, Westlake University, Hangzhou, Zhejiang 310024, China
- Westlake
AI Therapeutics Lab, Westlake Laboratory
of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China
| | - Zongyang Qiu
- Key
Laboratory of Structural Biology of Zhejiang Province, School of Life
Sciences, Westlake University, Hangzhou, Zhejiang 310024, China
- Westlake
AI Therapeutics Lab, Westlake Laboratory
of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China
| | - Jing Huang
- Key
Laboratory of Structural Biology of Zhejiang Province, School of Life
Sciences, Westlake University, Hangzhou, Zhejiang 310024, China
- Westlake
AI Therapeutics Lab, Westlake Laboratory
of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China
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3
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Patel J, Singh KR, Singh AK, Singh J, Singh AK. Multifunctional Cu:ZnS quantum dots for degradation of Amoxicillin and Dye Sulphon Fast Black-F and efficient determination of urea for assessing environmental aspects. ENVIRONMENTAL RESEARCH 2023; 235:116674. [PMID: 37459950 DOI: 10.1016/j.envres.2023.116674] [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: 04/17/2023] [Revised: 07/11/2023] [Accepted: 07/13/2023] [Indexed: 07/24/2023]
Abstract
This work is particularly aimed at the preparation of ZnS and Cu doped ZnS (Cu:ZnS) QDs by facile and easy technique, chemical precipitation method for the degradation of water pollutants and a simple scheme was proposed to prepare the urea-sensing system. The morphological and optical properties of the synthesized QDs was studied using high resolution transmission and scanning electron microscopes, X-ray diffraction, energy dispersive X-ray analysis, fluorescence and ultraviolet-visible spectroscopy, differential thermal and thermogravimetric analyses, Brunauer-Emmett-Teller analysis. The photocatalytic performance was systematically assessed by the photodegradation of an important pharmaceutical water pollutant, Amoxicillin (AMX) and a dye Fast Sulphon Black F (SFBF) in aqueous medium under UV light irradiation. Also, a very sensitive system was prepared by depositing the dots over an indium-tin-oxide (ITO) glass substrate for the sensing of biologically active molecule urea as it is an important monitor of public health in water and soil productivity. The results illustrated excellent photocatalytic efficiency (86.46% for AMX and 99.41% for SFBF) with stability up to four cycles of degradation reaction. The optimal photocatalyst dosage for achieving maximum removal of AMX was found to be 70 mg at a pH of 9.5, with a treatment time of 40 min. Similarly, for SFBF, the optimal photocatalyst dosage was determined to be 60 mg at pH 9, with a treatment time of 60 min. Further, the electrochemical analysis was done by fabricating Urease enzyme (UR)/Cu:ZnS QDs/ITO bioelectrode and then the fabricated bioelectrode, was utilized to determine the different concentrations of urea by cyclic voltammetry. Thus, the obtained limit of detection and sensitivity of the fabricated biosensing device for urea detection was obtained to be 0.0092 μM and 12 μA μM-1cm-2, respectively; under the optimized experimental conditions. Hence, it is anticipated that Cu:ZnS QDs can also successfully be applied as a promising material for fabrication of novel bioelectrode for urea determination and the biosensing platform is desirable and viable.
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Affiliation(s)
- Jyoti Patel
- Department of Chemistry, Govt. V. Y. T. PG. Autonomous College, Durg, Chhattisgarh, 491001, India
| | - Kshitij Rb Singh
- Department of Chemistry, Govt. V. Y. T. PG. Autonomous College, Durg, Chhattisgarh, 491001, India; Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Akhilesh Kumar Singh
- School of Material Science and Technology, Indian Institute of Technology, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Ajaya K Singh
- Department of Chemistry, Govt. V. Y. T. PG. Autonomous College, Durg, Chhattisgarh, 491001, India; School of Chemistry & Physics, University of KwaZulu-Natal, Durban 4000, South Africa.
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4
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Deng D, Chang Y, Liu W, Ren M, Xia N, Hao Y. Advancements in Biosensors Based on the Assembles of Small Organic Molecules and Peptides. BIOSENSORS 2023; 13:773. [PMID: 37622859 PMCID: PMC10452798 DOI: 10.3390/bios13080773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/21/2023] [Accepted: 07/27/2023] [Indexed: 08/26/2023]
Abstract
Over the past few decades, molecular self-assembly has witnessed tremendous progress in a variety of biosensing and biomedical applications. In particular, self-assembled nanostructures of small organic molecules and peptides with intriguing characteristics (e.g., structure tailoring, facile processability, and excellent biocompatibility) have shown outstanding potential in the development of various biosensors. In this review, we introduced the unique properties of self-assembled nanostructures with small organic molecules and peptides for biosensing applications. We first discussed the applications of such nanostructures in electrochemical biosensors as electrode supports for enzymes and cells and as signal labels with a large number of electroactive units for signal amplification. Secondly, the utilization of fluorescent nanomaterials by self-assembled dyes or peptides was introduced. Thereinto, typical examples based on target-responsive aggregation-induced emission and decomposition-induced fluorescent enhancement were discussed. Finally, the applications of self-assembled nanomaterials in the colorimetric assays were summarized. We also briefly addressed the challenges and future prospects of biosensors based on self-assembled nanostructures.
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Affiliation(s)
- Dehua Deng
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Yong Chang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Wenjing Liu
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Mingwei Ren
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Ning Xia
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Yuanqiang Hao
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
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Alves WA, King GM, Guha S. Looking into a crystal ball: printing and patterning self-assembled peptide nanostructures. NANOSCALE 2022; 14:15607-15616. [PMID: 36268821 DOI: 10.1039/d2nr03750e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The solution processability of organic semiconductors and conjugated polymers along with the advent of nanomaterials as conducting inks have revolutionized next-generation flexible consumer electronics. Another equally important class of nanomaterials, self-assembled peptides, heralded as next-generation materials for bioelectronics, have a lot of potential in printed technology. In this minireview, we address the self-assembly process in dipeptides, their application in electronics, and recent progress in three-dimensional printing. The prospect of a generalizable path for nanopatterning self-assembled peptides using ice lithography and its challenges are further discussed.
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Affiliation(s)
- Wendel A Alves
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09219-580 Santo Andre, Sao Paulo, Brazil
| | - Gavin M King
- Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, USA.
- Joint with Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA
| | - Suchismita Guha
- Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, USA.
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6
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Kim NH, Choi H, Shahzad ZM, Ki H, Lee J, Chae H, Kim YH. Supramolecular assembly of protein building blocks: from folding to function. NANO CONVERGENCE 2022; 9:4. [PMID: 35024976 PMCID: PMC8755899 DOI: 10.1186/s40580-021-00294-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 12/03/2021] [Indexed: 06/14/2023]
Abstract
Several phenomena occurring throughout the life of living things start and end with proteins. Various proteins form one complex structure to control detailed reactions. In contrast, one protein forms various structures and implements other biological phenomena depending on the situation. The basic principle that forms these hierarchical structures is protein self-assembly. A single building block is sufficient to create homogeneous structures with complex shapes, such as rings, filaments, or containers. These assemblies are widely used in biology as they enable multivalent binding, ultra-sensitive regulation, and compartmentalization. Moreover, with advances in the computational design of protein folding and protein-protein interfaces, considerable progress has recently been made in the de novo design of protein assemblies. Our review presents a description of the components of supramolecular protein assembly and their application in understanding biological phenomena to therapeutics.
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Affiliation(s)
- Nam Hyeong Kim
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Hojae Choi
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Zafar Muhammad Shahzad
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Heesoo Ki
- Department of Nano Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Jaekyoung Lee
- Department of Nano Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Heeyeop Chae
- School of Chemical Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Yong Ho Kim
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, Republic of Korea.
- Department of Nano Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
- Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon, 16419, Republic of Korea.
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7
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de Andrade DX, Alves ED, de Almeida AR, Colherinhas G. Laminar peptide structure: Energetic and structural evaluation using molecular dynamics. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Ganie AS, Bano S, Khan N, Sultana S, Rehman Z, Rahman MM, Sabir S, Coulon F, Khan MZ. Nanoremediation technologies for sustainable remediation of contaminated environments: Recent advances and challenges. CHEMOSPHERE 2021; 275:130065. [PMID: 33652279 DOI: 10.1016/j.chemosphere.2021.130065] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/17/2021] [Accepted: 02/20/2021] [Indexed: 05/04/2023]
Abstract
A major and growing concern within society is the lack of innovative and effective solutions to mitigate the challenge of environmental pollution. Uncontrolled release of pollutants into the environment as a result of urbanisation and industrialisation is a staggering problem of global concern. Although, the eco-toxicity of nanotechnology is still an issue of debate, however, nanoremediation is a promising emerging technology to tackle environmental contamination, especially dealing with recalcitrant contaminants. Nanoremediation represents an innovative approach for safe and sustainable remediation of persistent organic compounds such as pesticides, chlorinated solvents, brominated or halogenated chemicals, perfluoroalkyl and polyfluoroalkyl substances (PFAS), and heavy metals. This comprehensive review article provides a critical outlook on the recent advances and future perspectives of nanoremediation technologies such as photocatalysis, nano-sensing etc., applied for environmental decontamination. Moreover, sustainability assessment of nanoremediation technologies was taken into consideration for tackling legacy contamination with special focus on health and environmental impacts. The review further outlines the ecological implications of nanotechnology and provides consensus recommendations on the use of nanotechnology for a better present and sustainable future.
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Affiliation(s)
- Adil Shafi Ganie
- Environmental Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Sayfa Bano
- Environmental Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Nishat Khan
- Environmental Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Saima Sultana
- Environmental Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Zubair Rehman
- Section of Organic Chemistry, Department of Chemistry, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Mohammed M Rahman
- Center of Excellence for Advanced Material Research (CEAMR), King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Suhail Sabir
- Environmental Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Frederic Coulon
- School of Water, Energy and Environment, Cranfield University, Cranfield, MK43 0AL, United Kingdom
| | - Mohammad Zain Khan
- Environmental Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India.
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9
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Annalakshmi M, Kumaravel S, Chen TW, Chen SM, Lou BS. 3D Flower-like NiCo Layered Double Hydroxides: An Efficient Electrocatalyst for Non-Enzymatic Electrochemical Biosensing of Hydrogen Peroxide in Live Cells and Glucose in Biofluids. ACS APPLIED BIO MATERIALS 2021; 4:3203-3213. [PMID: 35014407 DOI: 10.1021/acsabm.0c01600] [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] [Indexed: 12/27/2022]
Abstract
Herein, a hierarchical structure of flower-like NiCo layered double hydroxides (NiCo LDH) microspheres composed of three-dimensional (3D) ultrathin nanosheets was successfully synthesized via a facile hydrothermal approach. The formation of NiCo LDH was confirmed by various physicochemical studies, and the NiCo LDH-modified glassy carbon electrode was used as an efficient dual-functional electrocatalyst for non-enzymatic glucose and hydrogen peroxide (H2O2) biosensor. The host matrix of hydrotalcite NiCo LDH exhibits the enhanced electrocatalytic sensing performances with a quick response time (<3 s), wide linear range (50 nM-18.95 mM and 20 nM-11.5 mM) and lowest detection limits (S/N = 3) (10.6 and 4.4 nM) toward glucose and H2O2, and also it exhibits good stability, selectivity, and reproducibility. In addition, this biosensor was successfully utilized to the real-time detection of endogenous H2O2 produced from live cells and glucose in various biological fluids, and demonstrates that the as synthesized NiCo LDH may provide a successful pathway for physiological and clinical pathological diagnosis.
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Affiliation(s)
- Muthaiah Annalakshmi
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
| | - Sakthivel Kumaravel
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC.,Institute of Biochemical and Biomedical Engineering, National Taipei University of Technology, Taipei 106, Taiwan, ROC
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London SW7 2AZ, UK
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
| | - Bih-Show Lou
- Department of Nuclear Medicine and Molecular Imaging Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan, ROC.,Chemistry Division, Center for General Education, Chang Gung University, Taoyuan 33302, Taiwan, ROC
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10
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Ammonia Gas Sensors: Comparison of Solid-State and Optical Methods. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10155111] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
High precision and fast measurement of gas concentrations is important for both understanding and monitoring various phenomena, from industrial and environmental to medical and scientific applications. This article deals with the recent progress in ammonia detection using in-situ solid-state and optical methods. Due to the continuous progress in material engineering and optoelectronic technologies, these methods are among the most perceptive because of their advantages in a specific application. We present the basics of each technique, their performance limits, and the possibility of further development. The practical implementations of representative examples are described in detail. Finally, we present a performance comparison of selected practical application, accumulating data reported over the preceding decade, and conclude from this comparison.
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11
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Liu J, Siavash Moakhar R, Sudalaiyadum Perumal A, Roman HN, Mahshid S, Wachsmann-Hogiu S. An AgNP-deposited commercial electrochemistry test strip as a platform for urea detection. Sci Rep 2020; 10:9527. [PMID: 32533102 PMCID: PMC7293235 DOI: 10.1038/s41598-020-66422-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 04/29/2020] [Indexed: 11/13/2022] Open
Abstract
We developed an inexpensive, portable platform for urea detection via electrochemistry by depositing silver nanoparticles (AgNPs) on a commercial glucose test strip. We modified this strip by first removing the enzymes from the surface, followed by electrodeposition of AgNPs on one channel (working electrode). The morphology of the modified test strip was characterized by Scanning Electron Microscopy (SEM), and its electrochemical performance was evaluated via Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS). We evaluated the performance of the device for urea detection via measurements of the dependency of peak currents vs the analyte concentration and from the relationship between the peak current and the square root of the scan rates. The observed linear range is 1-8 mM (corresponding to the physiological range of urea concentration in human blood), and the limit of detection (LOD) is 0.14 mM. The selectivity, reproducibility, reusability, and storage stability of the modified test strips are also reported. Additional tests were performed to validate the ability to measure urea in the presence of confounding factors such as spiked plasma and milk. The results demonstrate the potential of this simple and portable EC platform to be used in applications such as medical diagnosis and food safety.
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Affiliation(s)
- Juanjuan Liu
- Department of Bioengineering, McGill University, Montreal, Quebec, H3A 0C3, Canada
| | | | | | - Horia Nicolae Roman
- Department of Bioengineering, McGill University, Montreal, Quebec, H3A 0C3, Canada
| | - Sara Mahshid
- Department of Bioengineering, McGill University, Montreal, Quebec, H3A 0C3, Canada
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12
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Pelin JNBD, Edwards-Gayle CJC, Aguilar AM, Kaur A, Hamley IW, Alves WA. Polymorphism of asymmetric catalysts based on amphiphilic lipopeptides in solution. SOFT MATTER 2020; 16:4615-4624. [PMID: 32368775 DOI: 10.1039/d0sm00245c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The self-assembly of model [P]RWG lipopeptides (P: l-proline, R: l-arginine, W: l-tryptophan, G: l-glycine), containing one or two aliphatic octadecyl (C18) chains in water and cyclohexanone/water solutions was examined. The self-assembly of mixtures of these RWG and PRWG lipopeptides was also investigated. These materials presented a similar critical aggregation concentration of ∼4.0 × 10-4 wt% and were characterized by unordered secondary structures with some β-sheet content. TEM and cryo-TEM revealed the presence of mainly nanotape structures with micelles observed for systems rich in PRWG(C18H37). Analysis of detailed SAXS form factor measurements revealed the presence of bilayers 3-4 nm thick while the PRWG(C18H37) micelles have a core radius of approximately 3 nm, and a shell thickness of 2 nm. For the cyclohexanone/water systems polymorphs containing cluster aggregates (with radius of 0.25 nm to 0.50 nm) and some elongated structures (with radius of 5.7 nm to 26.1 nm) were seen. Longer structures were formed with the increase of the proline-containing lipopeptide content. The catalytic activity of these peptides was assessed using a model nitro-aldol reaction. The concentration of water in the reaction system influenced the conversion, higher content promoted better efficiency for the water systems, but the opposite was observed for the cyclohexanone/water samples.
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Affiliation(s)
- Juliane N B D Pelin
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-580, Santo André, Brazil.
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13
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In-situ growth of 3D rosette-like copper nanoparticles on carbon cloth for enhanced sensing of ammonia based on copper electrodissolution. Anal Chim Acta 2020; 1104:60-68. [DOI: 10.1016/j.aca.2020.01.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 12/31/2019] [Accepted: 01/04/2020] [Indexed: 11/18/2022]
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14
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Pelin JBD, Gerbelli BB, Edwards-Gayle CJC, Aguilar AM, Castelletto V, Hamley IW, Alves WA. Amyloid Peptide Mixtures: Self-Assembly, Hydrogelation, Nematic Ordering, and Catalysts in Aldol Reactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:2767-2774. [PMID: 32131599 PMCID: PMC7146849 DOI: 10.1021/acs.langmuir.0c00198] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/04/2020] [Indexed: 05/23/2023]
Abstract
Morphological, spectroscopic, and scattering studies of the self-assembly and aggregation of mixtures of [RF]4 and P[RF]4 peptides (where R = arginine; F = phenylalanine; P = proline), in solution and as hydrogels, were performed to obtain information about polymorphism. CD data confirmed a β-sheet secondary structure in aqueous solution, and TEM images revealed nanofibers with diameters of ∼10 nm and micrometer lengths. SAXS curves were fitted using a mass fractal-component and a long cylinder shell form factor for the liquid samples, and only a long cylinder shell form factor for the gels. Increasing the P[RF]4 content in the systems leads to a reduction in cylinder radius and core scattering density, suggesting an increase in packing of the peptide molecules; however, the opposite effect is observed for the gels, where the scattering density is higher in the shell for the systems containing higher P[RF]4 content. These compounds show potential as catalysts in the asymmetric aldol reactions, with cyclohexanone and p-nitrobenzaldehyde in aqueous media. A moderate conversion (36.9%) and a good stereoselectivity (69:31) were observed for the system containing only [RF]4. With increasing P[RF]4 content, a considerable decrease of the conversion was observed, suggesting differences in the self-assembly and packing factor. Rheological measurements were performed to determine the shear moduli for the soft gels.
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Affiliation(s)
- Juliane
N. B. D. Pelin
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, 09210-580, Santo André, Brazil
- Department
of Chemistry, University of Reading, Reading RG6 6AD, United Kingdom
| | - Barbara B. Gerbelli
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, 09210-580, Santo André, Brazil
| | | | - Andrea M. Aguilar
- Instituto
de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, 09972-270, Brazil
| | - Valeria Castelletto
- Department
of Chemistry, University of Reading, Reading RG6 6AD, United Kingdom
| | - Ian W. Hamley
- Department
of Chemistry, University of Reading, Reading RG6 6AD, United Kingdom
| | - Wendel A. Alves
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, 09210-580, Santo André, Brazil
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15
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Gerbelli BB, Ly I, Pedemay S, Alves WA, de Oliveira EA. The Role of Amylogenic Fiber Aggregation on the Elasticity of a Lipid Membrane. ACS APPLIED BIO MATERIALS 2020; 3:815-822. [PMID: 35019285 DOI: 10.1021/acsabm.9b00861] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This work presents a systematic study of the swelling behavior of a lecithin lamellar phase incorporating different amounts of the short peptide sequence diphenylalanine (FF). Small- and wide-angle X-ray scattering assays provide relevant information about the structure and elasticity of the lamellar stacking. These data show that important changes occur at the interface of the lipid membrane dependent not only on the peptide content but also on the hydration of the lamellar structure. Multilamellar-to-unilamellar transitions, previously observed for an increasing number of peptides, are now observed to be dependent on the hydration of the lamellar phase. Wide-angle X-ray scattering and electron microscopy observations (TEM) provide experimental evidence of peptide aggregation into long amylogenic fibers. We argue that aggregates that partition in water may become large enough to destabilize the lamellar structure. It is also shown that, for a given peptide concentration, the lamellar structure can be rendered more flexible or more rigid, by tuning the hydration.
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Affiliation(s)
- Barbara B Gerbelli
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André 09210-580, Brazil
| | - Isabelle Ly
- Centre de Recherche Paul Pascal, University of Bordeau, 33600 Pessac, France
| | - Sandra Pedemay
- Centre de Recherche Paul Pascal, University of Bordeau, 33600 Pessac, France
| | - Wendel A Alves
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André 09210-580, Brazil
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16
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Singh AK, Singh M, Verma N. Electrochemical preparation of Fe3O4/MWCNT-polyaniline nanocomposite film for development of urea biosensor and its application in milk sample. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2019. [DOI: 10.1007/s11694-019-00278-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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17
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Nycz M, Arkusz K, Pijanowska DG. Influence of the Silver Nanoparticles (AgNPs) Formation Conditions onto Titanium Dioxide (TiO 2) Nanotubes Based Electrodes on Their Impedimetric Response. NANOMATERIALS 2019; 9:nano9081072. [PMID: 31349734 PMCID: PMC6723281 DOI: 10.3390/nano9081072] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/17/2019] [Accepted: 07/24/2019] [Indexed: 01/19/2023]
Abstract
This paper presents the comparison of the effects of three methods of production of silver spherical and near-spherical nanoparticles (AgNPs) on the titanium dioxide nanotubes (TNT) base: cyclic voltammetry, chronoamperometry, and sputter deposition. It also evaluates the influence of silver nanoparticles on the electrochemical properties of the developed electrodes. The novelty of this research was to fabricate regular AgNPs free of agglomerates uniformly distributed onto the TNT layer, which has not been accomplished with previous attempts. The applied methods do not require stabilizing and reducing reagents. The extensive electrochemical characteristic of AgNP/TNT was performed by open circuit potential and electrochemical impedance spectroscopy methods. For AgNPs/TNT obtained by each method, the impedance module of these electrodes was up to 50% lower when compared to TNT, which means that AgNPs enabled more efficient electron transfer due to the effective area increase. In addition, the presence of nanoparticles increases the corrosion resistance of the prepared electrodes. These substrates can be used as electrochemical sensors due to their high electrical conductivity, and also as implants due to the antibacterial properties of both the TNT and AgNPs.
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Affiliation(s)
- Marta Nycz
- Department of Biomedical Engineering, Faculty of Mechanical Engineering, University of Zielona Góra, Prof. Z. Szafrana 4, 54-516 Zielona Góra, Poland.
| | - Katarzyna Arkusz
- Department of Biomedical Engineering, Faculty of Mechanical Engineering, University of Zielona Góra, Prof. Z. Szafrana 4, 54-516 Zielona Góra, Poland
| | - Dorota Genowefa Pijanowska
- Nałęcz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Ks. Trojdena 4, 02-109 Warszawa, Poland
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18
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Pizzi A, Catalano L, Demitri N, Dichiarante V, Terraneo G, Metrangolo P. Halogen bonding as a key interaction in the self‐assembly of iodinated diphenylalanine peptides. Pept Sci (Hoboken) 2019. [DOI: 10.1002/pep2.24127] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Andrea Pizzi
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”Politecnico di Milano Via Luigi Mancinelli 7, 20131 Milano Italy
| | - Luca Catalano
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”Politecnico di Milano Via Luigi Mancinelli 7, 20131 Milano Italy
| | - Nicola Demitri
- Elettra‐Sincrotrone Trieste, S.S. 14 Km 163.5 in Area Science Park, 34149 Basovizza Trieste Italy
| | - Valentina Dichiarante
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”Politecnico di Milano Via Luigi Mancinelli 7, 20131 Milano Italy
| | - Giancarlo Terraneo
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”Politecnico di Milano Via Luigi Mancinelli 7, 20131 Milano Italy
| | - Pierangelo Metrangolo
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”Politecnico di Milano Via Luigi Mancinelli 7, 20131 Milano Italy
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19
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Gerbelli BB, Vassiliades SV, Rojas JEU, Pelin JNBD, Mancini RSN, Pereira WSG, Aguilar AM, Venanzi M, Cavalieri F, Giuntini F, Alves WA. Hierarchical Self‐Assembly of Peptides and its Applications in Bionanotechnology. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900085] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Barbara B. Gerbelli
- Centro de Ciências Naturais e HumanasUniversidade Federal do ABC Santo André 09210–580 Brazil
| | - Sandra V. Vassiliades
- Centro de Ciências Naturais e HumanasUniversidade Federal do ABC Santo André 09210–580 Brazil
| | - Jose E. U. Rojas
- Centro de Ciências Naturais e HumanasUniversidade Federal do ABC Santo André 09210–580 Brazil
| | - Juliane N. B. D. Pelin
- Centro de Ciências Naturais e HumanasUniversidade Federal do ABC Santo André 09210–580 Brazil
| | - Rodrigo S. N. Mancini
- Centro de Ciências Naturais e HumanasUniversidade Federal do ABC Santo André 09210–580 Brazil
| | - Wallace S. G. Pereira
- Centro de Ciências Naturais e HumanasUniversidade Federal do ABC Santo André 09210–580 Brazil
| | - Andrea M. Aguilar
- Instituto de Ciências AmbientaisQuímicas e FarmacêuticasUniversidade Federal de São Paulo Diadema 09972270 Brazil
| | - Mariano Venanzi
- Department of Chemical Science and TechnologiesUniversity of Rome Tor Vergata Via Cracovia, 50 00133 Roma RM Italy
| | - Francesca Cavalieri
- Department of Chemical Science and TechnologiesUniversity of Rome Tor Vergata Via Cracovia, 50 00133 Roma RM Italy
- Department of Chemical and Biomolecular EngineeringThe University of Melbourne Parkville Vitória 3010 Australia
| | - Francesca Giuntini
- School of Pharmacy and Biomolecular SciencesLiverpool John Moores University Byrom Street Liverpool L3 3AF UK
| | - Wendel A. Alves
- Centro de Ciências Naturais e HumanasUniversidade Federal do ABC Santo André 09210–580 Brazil
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20
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Barbosa AI, Borges J, Meira DI, Costa D, Rodrigues MS, Rebelo R, Correlo VM, Vaz F, Reis RL. Development of label-free plasmonic Au-TiO 2 thin film immunosensor devices. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 100:424-432. [PMID: 30948078 DOI: 10.1016/j.msec.2019.03.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 02/07/2019] [Accepted: 03/08/2019] [Indexed: 12/17/2022]
Abstract
This work reports on the development of a label-free immunosensor technology, based on nanoplasmonic Au-TiO2 thin films. The Au-TiO2 thin films were prepared by cost-effective reactive DC magnetron sputtering, followed by a thermal annealing procedure. The latter promoted the growth of the Au nanoparticles throughout the TiO2 matrix and induced some morphological changes, which are the base for the immunosensor device functionality. A posterior plasma etching treatment was required to partially expose the nanoparticles to the biological environment. It gave rise to a 6-fold increase of the total area of gold exposed, allowing further possibilities for the sensor sensitivity enhancement. Experimental results demonstrated the successful functionalization of the films' surface with antibodies, with the immobilization occurring preferentially in the exposed nanoparticles and negligibly on the TiO2 matrix. Antibody adsorption surface coverage studies revealed antibody low affinity to the film's surface. Nevertheless, immunoassay development experiments showed a strong and active immobilized antibody monolayer at an optimized antibody concentration. This allowed a 236 signal-to-noise-ratio in a confocal microscope, using mouse IgG and 100 ng/ml of Fab-specific anti-mouse IgG-FITC conjugated. Label-free detection of the optimized antibody monolayer on Au-TiO2 thin films was also tested, revealing an expected redshift in the LSPR band, which demonstrates the suitability for the development of cost-effective, label-free LSPR based immunosensor devices.
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Affiliation(s)
- Ana I Barbosa
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Joel Borges
- Centro de Física, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - Diana I Meira
- Centro de Física, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Diogo Costa
- Centro de Física, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Marco S Rodrigues
- Centro de Física, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Rita Rebelo
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Vitor M Correlo
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, AvePark, 4805-017 Barco, Guimarães, Portugal
| | - Filipe Vaz
- Centro de Física, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Rui L Reis
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, AvePark, 4805-017 Barco, Guimarães, Portugal
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21
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Electrochemical Impedance Characterization of Cell Growth on Reduced Graphene Oxide–Gold Nanoparticles Electrodeposited on Indium Tin Oxide Electrodes. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9020326] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The improved binding ability of graphene–nanoparticle composites to proteins or molecules can be utilized to develop new cell-based assays. In this study, we fabricated reduced graphene oxide–gold nanoparticles (rGO-AuNP) electrodeposited onto a transparent indium tin oxide (ITO) electrode and investigated the feasibility of the electrochemical impedance monitoring of cell growth. The electrodeposition of rGO–AuNP on the ITO was optically and electrochemically characterized in comparison to bare, rGO-, and AuNP-deposited electrodes. The cell growth on the rGO–AuNP/ITO electrode was analyzed via electrochemical impedance measurement together with the microscopic observation of HEK293 cells transfected with a green fluorescent protein expression vector. The results showed that rGO–AuNP was biocompatible and induced an increase in cell adherence to the electrode when compared to the bare, AuNP-, or rGO-deposited ITO electrode. At 54 h cultivation, the average and standard deviation of the saturated normalized impedance magnitude of the rGO–AuNP/ITO electrode was 3.44 ± 0.16, while the value of the bare, AuNP-, and rGO-deposited ITO electrode was 2.48 ± 0.15, 2.61 ± 0.18, and 3.01 ± 0.25, respectively. The higher saturated value of the cell impedance indicates that the impedimetric cell-based assay has a broader measurement range. Thus, the rGO–AuNP/ITO electrode can be utilized for label-free and real-time impedimetric cell-based assays with wider dynamic range.
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22
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Wang, J, Shen, C, Tang, S, Yao, Y. Study of Charge-Conjugated Self-Assembly Behavior of Amphiphilic Block Copolypeptides/Helicene. CHINESE J ORG CHEM 2019. [DOI: 10.6023/cjoc201904038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Pelin JNBD, Gerbelli BB, Soares BM, Aguilar AM, Alves WA. Amyloidogenic model peptides as catalysts for stereoselective aldol reactions. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00790c] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Different polymorphic forms of peptide assemblies influence the stereoselectivity of aldol reactions in water medium.
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Affiliation(s)
| | - Barbara B. Gerbelli
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André
- Brazil
| | - Bruna M. Soares
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André
- Brazil
| | - Andrea M. Aguilar
- Instituto de Ciências Ambientais
- Químicas e Farmacêuticas
- Universidade Federal de São Paulo
- Diadema
- Brazil
| | - Wendel A. Alves
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André
- Brazil
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24
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Yang B, Adams DJ, Marlow M, Zelzer M. Surface-Mediated Supramolecular Self-Assembly of Protein, Peptide, and Nucleoside Derivatives: From Surface Design to the Underlying Mechanism and Tailored Functions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:15109-15125. [PMID: 30032622 DOI: 10.1021/acs.langmuir.8b01165] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Among the many parameters that have been explored to exercise control over self-assembly processes, the influence of surface properties on self-assembly has been recognized as important but has received considerably less attention than other factors. This is particularly true for biomolecule-derived self-assembling molecules such as protein, peptide, and nucleobase derivatives. Because of their relevance to biomaterial and drug delivery applications, interest in these materials is increasing. As the formation of supramolecular structures from these biomolecule derivatives inevitably brings them into contact with the surfaces of surrounding materials, understanding and controlling the impact of the properties of these surfaces on the self-assembly process are important. In this feature article, we present an overview of the different surface parameters that have been used and studied for the direction of the self-assembly of protein, peptide, and nucleoside-based molecules. The current mechanistic understanding of these processes will be discussed, and potential applications of surface-mediated self-assembly will be outlined.
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Affiliation(s)
- Bin Yang
- Department of Pharmacy , University of Nottingham , Nottingham NG2 7RD , U.K
| | - Dave J Adams
- School of Chemistry , University of Glasgow , Glasgow G12 8QQ , U.K
| | - Maria Marlow
- Department of Pharmacy , University of Nottingham , Nottingham NG2 7RD , U.K
| | - Mischa Zelzer
- Department of Pharmacy , University of Nottingham , Nottingham NG2 7RD , U.K
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25
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Ye JY, Lin JL, Zhou ZY, Hong YH, Sheng T, Rauf M, Sun SG. Ammonia electrooxidation on dendritic Pt nanostructures in alkaline solutions investigated by in-situ FTIR spectroscopy and online electrochemical mass spectroscopy. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.12.062] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Sequence length dependence in arginine/phenylalanine oligopeptides: Implications for self-assembly and cytotoxicity. Biophys Chem 2018; 233:1-12. [DOI: 10.1016/j.bpc.2017.11.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 11/28/2017] [Accepted: 11/28/2017] [Indexed: 12/13/2022]
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27
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Hassan RYA, Kamel AM, Hashem MS, Hassan HNA, Abd El-Ghaffar MA. A new disposable biosensor platform: carbon nanotube/poly(o-toluidine) nanocomposite for direct biosensing of urea. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-017-3857-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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28
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Conjugation with L,L-diphenylalanine Self-Assemblies Enhances In Vitro Antitumor Activity of Phthalocyanine Photosensitizer. Sci Rep 2017; 7:13166. [PMID: 29030603 PMCID: PMC5640658 DOI: 10.1038/s41598-017-13729-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 09/27/2017] [Indexed: 11/18/2022] Open
Abstract
We present the synthesis and characterization of new peptide conjugates obtained by hierarchical co-assembly of L,L-diphenylalanine (FF) and zinc phthalocyanine complexes (ZnPc) in water. Self-assembly capabilities under defined conditions were investigated by scanning electron microscopy, and photophysical properties were evaluated using UV-Vis and fluorescence spectroscopy. AFM observations demonstrated that these ZnPcs form different highly ordered arrays on the crystalline faces of the FF microplates and that surface roughness significantly changes with the presence of differently substituted phthalocyanine units. XRD assays showed that the overall molecular packing of the conjugates is organized according to a hexagonal symmetry, with ZnPcs hosted in the interstices of the peptide phase. In vitro photodynamic studies were conducted on human breast cancer MCF-7 cells to investigate both cellular uptake and cytotoxicity. It was shown that FF self-assemblies are not toxicity and enhance accumulation of ZnPc in MCF-7 cells, improving apoptotic cell death upon irradiation. Our findings demonstrate enhancement of ZnPc antitumor efficiency by FF conjugates and a proof-of-concept for new photosensitizer carriers based on peptide conjugates.
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29
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Meng F, Liang W, Sun H, Wu L, Gong X, Miao P. A Peptide-Based Electrochemical Biosensor for Facile Measurement of Whole-Blood Heparin. ChemElectroChem 2017. [DOI: 10.1002/celc.201600680] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Fanyu Meng
- Suzhou Institute of Biomedical Engineering and Technology; Chinese Academy of Sciences; Suzhou 215163 P. R. China
| | - Weiguo Liang
- Suzhou Institute of Biomedical Engineering and Technology; Chinese Academy of Sciences; Suzhou 215163 P. R. China
| | - Haixuan Sun
- Suzhou Institute of Biomedical Engineering and Technology; Chinese Academy of Sciences; Suzhou 215163 P. R. China
| | - Ligang Wu
- Suzhou Institute of Biomedical Engineering and Technology; Chinese Academy of Sciences; Suzhou 215163 P. R. China
| | - Xiao Gong
- State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; Wuhan 430070 P. R. China
| | - Peng Miao
- Suzhou Institute of Biomedical Engineering and Technology; Chinese Academy of Sciences; Suzhou 215163 P. R. China
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30
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Khanra S, Ghosh K, Ferreira FF, Alves WA, Punzo F, Yu P, Guha S. Probing nonlinear optical coefficients in self-assembled peptide nanotubes. Phys Chem Chem Phys 2017; 19:3084-3093. [DOI: 10.1039/c6cp07879f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Second harmonic generation polarimetry from individual self-assembled peptide nanotubes is used to obtain the ratio of the nonlinear coefficients.
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Affiliation(s)
- Soma Khanra
- Department of Physics and Astronomy
- University of Missouri
- Columbia
- USA
| | - Kartik Ghosh
- Physics
- Astronomy
- and Materials Science
- Missouri State University
- Springfield
| | - Fabio F. Ferreira
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- 09219-580 Santo Andre
- Brazil
| | - Wendel A. Alves
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- 09219-580 Santo Andre
- Brazil
| | - Francesco Punzo
- Dipartimento di Scienze del Farmaco
- Sezione Chimica
- Università degli Studi di Catania
- Viale Andrea Doria 6
- 95125 Catania
| | - Ping Yu
- Department of Physics and Astronomy
- University of Missouri
- Columbia
- USA
| | - Suchismita Guha
- Department of Physics and Astronomy
- University of Missouri
- Columbia
- USA
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31
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Non-enzymatic electrochemical biosensor based on Pt NPs/RGO-CS-Fc nano-hybrids for the detection of hydrogen peroxide in living cells. Biosens Bioelectron 2016; 82:185-94. [DOI: 10.1016/j.bios.2016.04.004] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 04/02/2016] [Accepted: 04/04/2016] [Indexed: 12/31/2022]
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32
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Andrade-Filho T, Martins TC, Ferreira FF, Alves WA, Rocha AR. Water-driven stabilization of diphenylalanine nanotube structures. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1936-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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33
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Kogikoski S, Sousa CP, Liberato MS, Andrade-Filho T, Prieto T, Ferreira FF, Rocha AR, Guha S, Alves WA. Multifunctional biosensors based on peptide–polyelectrolyte conjugates. Phys Chem Chem Phys 2016; 18:3223-33. [DOI: 10.1039/c5cp07165h] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The crystal structure of self-assembled peptide nanostructures dictates the conductivity. We show that the orthorhombic phase can be doped with PAH, improving hole and electron injection, opening opportunities for self-assembled peptide composites.
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Affiliation(s)
- S. Kogikoski
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André
- Brazil
| | - C. P. Sousa
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André
- Brazil
| | - M. S. Liberato
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André
- Brazil
| | - T. Andrade-Filho
- Instituto de Ciências Exatas
- Faculdade de Física
- Universidade Federal do Sul e Sudeste do Pará
- Marabá
- Brazil
| | - T. Prieto
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André
- Brazil
| | - F. F. Ferreira
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André
- Brazil
| | - A. R. Rocha
- Instituto de Física Teórica
- Universidade Estadual Paulista – UNESP
- São Paulo
- Brazil
| | - S. Guha
- Department of Physics of Astronomy
- University of Missouri
- Columbia
- USA
| | - W. A. Alves
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André
- Brazil
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34
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Kim S, Kim JH, Lee JS, Park CB. Beta-Sheet-Forming, Self-Assembled Peptide Nanomaterials towards Optical, Energy, and Healthcare Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:3623-40. [PMID: 25929870 DOI: 10.1002/smll.201500169] [Citation(s) in RCA: 134] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 02/28/2015] [Indexed: 05/19/2023]
Abstract
Peptide self-assembly is an attractive route for the synthesis of intricate organic nanostructures that possess remarkable structural variety and biocompatibility. Recent studies on peptide-based, self-assembled materials have expanded beyond the construction of high-order architectures; they are now reporting new functional materials that have application in the emerging fields such as artificial photosynthesis and rechargeable batteries. Nevertheless, there have been few reviews particularly concentrating on such versatile, emerging applications. Herein, recent advances in the synthesis of self-assembled peptide nanomaterials (e.g., cross β-sheet-based amyloid nanostructures, peptide amphiphiles) are selectively reviewed and their new applications in diverse, interdisciplinary fields are described, ranging from optics and energy storage/conversion to healthcare. The applications of peptide-based self-assembled materials in unconventional fields are also highlighted, such as photoluminescent peptide nanostructures, artificial photosynthetic peptide nanomaterials, and lithium-ion battery components. The relation of such functional materials to the rapidly progressing biomedical applications of peptide self-assembly, which include biosensors/chips and regenerative medicine, are discussed. The combination of strategies shown in these applications would further promote the discovery of novel, functional, small materials.
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Affiliation(s)
- Sungjin Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon, 305-701, Republic of Korea
| | - Jae Hong Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon, 305-701, Republic of Korea
| | - Joon Seok Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon, 305-701, Republic of Korea
| | - Chan Beum Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon, 305-701, Republic of Korea
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Cipriano T, Knotts G, Laudari A, Bianchi RC, Alves WA, Guha S. Bioinspired peptide nanostructures for organic field-effect transistors. ACS APPLIED MATERIALS & INTERFACES 2014; 6:21408-21415. [PMID: 25376495 DOI: 10.1021/am5064124] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Peptide-based nanostructures derived from natural amino acids are superior building blocks for biocompatible devices as they can be used in a bottom-up process without the need for expensive lithography. A dense nanostructured network of l,l-diphenylalanine (FF) was synthesized using the solid-vapor-phase technique. Formation of the nanostructures and structure-phase relationship were investigated by electron microscopy and Raman scattering. Thin films of l,l-diphenylalanine micro/nanostructures (FF-MNSs) were used as the dielectric layer in pentacene-based field-effect transistors (FETs) and metal-insulator-semiconductor diodes both in bottom-gate and in top-gate structures. Bias stress studies show that FF-MNS-based pentacene FETs are more resistant to degradation than pentacene FETs using FF thin film (without any nanostructures) as the dielectric layer when both are subjected to sustained electric fields. Furthermore, it is demonstrated that the FF-MNSs can be functionalized for detection of enzyme-analyte interactions. This work opens up a novel and facile route toward scalable organic electronics using peptide nanostructures as scaffolding and as a platform for biosensing.
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Affiliation(s)
- Thiago Cipriano
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC , 09210-580, Santo André, São Paulo, Brazil
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