1
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Zhang S, Fan X, Jiang S, Yang D, Wang M, Liu T, Shao X, Wang S, Hu G, Yue Q. High sensitive assay of formaldehyde using resonance light scattering technique based on carbon dots aggregation. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
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2
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Zhi S, Li C, Jiang Z. A novel liquid crystal resonance Rayleigh scattering spectral probe for determination of trace Cr 6. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 278:121306. [PMID: 35526442 DOI: 10.1016/j.saa.2022.121306] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
Hexavalent chromium (Cr6+) has strong oxidizing property and toxicity. It has been identified as a carcinogen with obvious carcinogenic effect by the International Anti-cancer Research Center. Therefore, it has a great significance to establish a simple and sensitive method for Cr6+. In the solution, liquid crystal (LC) trans, trans-4-(3,4-difluorophenyl)-4'-n-pentylbicyclohexyl (DP) exhibits strong resonance Rayleigh scattering (RRS) effect due to formation DP nanoparticles. It was used firstly as nanoprobe, to establish a simple and sensitive RRS energy transfer (RRS-ET) method for the determination of trace Cr6+ in water samples. The Cr6+ reacts with diphenylcarbazide (DCB) to produce purple complex. It is adsorbed on the nanoprobe surface, the purple complex as energy receptor and DP as energy donor to produce RRS-ET phenomenon, to make the RRS signal of 370 nm decreasing. In the range of 3-30 nmol/L Cr6+, with the increase of concentration, the RRS signal decreased linearly at 370 nm, with a detection limit of 0.49 nmol/L. This new RRS-ET method was applied to the determination of Cr6+ in water samples, with recovery of 96.0-104.7% and the relative standard deviation (RSD) of 4.44-9.98%.
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Affiliation(s)
- Shengfu Zhi
- School of Public Health, Guilin Medical University, Guilin 541199, China; Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology for Science and Education Combined with Science and Technology Innovation Base, Guilin 541006, China
| | - Chongning Li
- School of Public Health, Guilin Medical University, Guilin 541199, China; Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology for Science and Education Combined with Science and Technology Innovation Base, Guilin 541006, China.
| | - Zhiliang Jiang
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology for Science and Education Combined with Science and Technology Innovation Base, Guilin 541006, China.
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Alenichev M, Levin A, Yushina A, Kostrikina E, Lebedin Y, Andreeva I, Grigorenko V, Krylov V, Nifantiev N. Nano-biosensor based on the combined use of the dynamic and static light scattering for Aspergillus galactomannan analysis. SENSING AND BIO-SENSING RESEARCH 2022. [DOI: 10.1016/j.sbsr.2022.100475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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4
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Han JH, Gao WY, Feng LH, Wang Y, Shuang SM. An AIE-active probe for selective fluorometric–colorimetric detection of HSO3− in aqueous solution and real samples. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113515] [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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5
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Estevão BM, Miletto I, Hioka N, Marchese L, Gianotti E. Mesoporous Silica Nanoparticles Functionalized with Amino Groups for Biomedical Applications. ChemistryOpen 2021; 10:1251-1259. [PMID: 34907672 PMCID: PMC8671895 DOI: 10.1002/open.202100227] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/30/2021] [Indexed: 11/11/2022] Open
Abstract
The synthesis and characterization of amino-functionalized mesoporous silica nanoparticles are presented following two different synthetic methods: co-condensation and post-synthesis grafting of 3-aminopropyltriethoxysilane. The amino groups' distribution on the mesoporous silica nanoparticles was evaluated considering the aggregation state of a grafted photosensitizer (Verteporfin) by using spectroscopic techniques. The homogeneous distribution of amino groups within the silica network is a key factor to avoid aggregation during further organic functionalization and to optimize the performance of functionalized silica nanoparticles in biomedical applications. In addition, the formation of a protein corona on the external surface of both bare and amino-functionalized mesoporous silica was also investigated by adsorbing Bovine Serum Albumin (BSA) as a model protein. The adsorption of BSA was found to be favorable, reducing the aggregation phenomena for both bare and amino-modified nanoparticles. Nevertheless, the dispersant effect of BSA was much more evident in the case of amino-modified nanoparticles, which reached monodispersion after adsorption of the protein, thus suggesting that amino-modified nanoparticles can benefit from protein corona formation for preventing severe aggregation in biological media.
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Affiliation(s)
- Bianca Martins Estevão
- Department of Science and Technological InnovationUniversità del Piemonte OrientaleViale T. Michel, 1115121AlessandriaItaly
- Research Nucleus in Photodynamic SystemState University of MaringáAv. Colombo, 5790CEP 87020–900MaringáParanáBrazil
- Group of Nanomedicine and NanotoxicologySão Carlos Institute of PhysicsUniversity of São PauloAv. Trabalhador São-carlense, 400CEP 13566–590São CarlosBrazil
| | - Ivana Miletto
- Department of Science and Technological InnovationUniversità del Piemonte OrientaleViale T. Michel, 1115121AlessandriaItaly
| | - Noboru Hioka
- Research Nucleus in Photodynamic SystemState University of MaringáAv. Colombo, 5790CEP 87020–900MaringáParanáBrazil
| | - Leonardo Marchese
- Department of Science and Technological InnovationUniversità del Piemonte OrientaleViale T. Michel, 1115121AlessandriaItaly
| | - Enrica Gianotti
- Department of Science and Technological InnovationUniversità del Piemonte OrientaleViale T. Michel, 1115121AlessandriaItaly
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Jing M, Tang R, Han G, Zhang S, Liu R. Exploring the influence of silver and lead on structure and function of xylanase: spectroscopic and calorimetric methods. Toxicol Res (Camb) 2020; 9:182-190. [PMID: 32850115 DOI: 10.1093/toxres/tfaa013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 02/07/2020] [Indexed: 11/14/2022] Open
Abstract
Soil contamination with heavy metal could induce the alteration of soil ecological environments, and soil enzyme activities are sensitive indicators for the soil toxicology. Xylanase is one of predominant soil enzymes related to carbon nitrogen cycle. In this work, we explored the underlying mechanisms for conformational and enzymatic activity alterations of xylanase after silver and lead exposure at molecular level with systematical measurements including multiple spectroscopic methods, isothermal titration calorimetry, and enzymatic activity. Both silver and lead could loosen and unfold the skeleton of xylanase with the quenching of endogenous fluorescence. Silver interacted with xylanase forming larger-size aggregations through Van der Waals forces and hydrogen bonding, while lead interacted with xylanase forming larger-size aggregations through hydrophobic force. Silver and lead induced an obvious loss (67.1 and 56.31%) of the xylanase enzymatic activity, but silver has a greater impact on xylanase than that of lead. The xylanase enzymatic activity significantly decreased due to the conformational alterations. The negative effect of silver exposure on xylanase structure and function was more prominent than that of lead.
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Affiliation(s)
- Mingyang Jing
- School of Environmental Science and Engineering, Shandong University, America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, P.R. China.,Penglai Jiaxin Dye Chemical Co., Ltd, 1#Jiaxin Road, Yantai, Shandong 265601, P.R. China
| | - Rui Tang
- School of Environmental Science and Engineering, Shandong University, America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, P.R. China
| | - Guangye Han
- Shandong Academy of Environmental Sciences Co., Ltd, Lixia, 50# Lishan Road, Jinan, Shandong 250100, P.R. China
| | - Shansheng Zhang
- Penglai Jiaxin Dye Chemical Co., Ltd, 1#Jiaxin Road, Yantai, Shandong 265601, P.R. China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, P.R. China
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8
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Shao S, Fu W, Li X, Shi D, Jiang Y, Li J, Gong T, Li X. Membrane fouling by the aggregations formed from oppositely charged organic foulants. WATER RESEARCH 2019; 159:95-101. [PMID: 31078756 DOI: 10.1016/j.watres.2019.05.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/27/2019] [Accepted: 05/02/2019] [Indexed: 06/09/2023]
Abstract
Due to the lack of robust ways to quantify aggregations, fouling of two-foulant aggregations is poorly understood. This work systematically reports the ultrafiltration membrane fouling by aggregations formed from two oppositely charged organic foulants (i.e., humic acid (HA) and lysozyme (LYS)) with the aid of resonance light scattering (RLS) technique. RLS provides an effective approach to detecting the aggregation concentration and reveals that the HA-LYS aggregations were formed at a mass ratio of m(LYS)/m(HA) = 2.77. During the filtration of the mixture of HA and LYS, aggregations over individual foulants were identified to be the main substances deposited on the membrane surface, where the mass of deposition had a good linear relationship with the feed concentration of the aggregations. The HA-LYS aggregations might decrease the total fouling due to their large size, but reduce the fouling reversibility. In the pH range of 5.5-9.2, the pH value had limiting effects on the concentration of HA-LYS aggregations, as well as the consequent fouling. At low ionic strength, the membrane fouling by HA-LYS aggregations decreased as the ionic strength increased due to the reduction of the aggregation concentration. Oppositely, at high ionic strength, this tendency was reversed due to the electrical double layer compression effect. These results suggest that RLS is a simple and effective way to quantify the aggregations of foulants, and the aggregations of foulants have distinct fouling behaviors compared with the individual foulants.
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Affiliation(s)
- Senlin Shao
- School of Civil Engineering, Wuhan University, PR China.
| | - Wenwen Fu
- School of Civil Engineering, Wuhan University, PR China
| | - Xiujuan Li
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, PR China
| | - Danting Shi
- School of Civil Engineering, Wuhan University, PR China.
| | - Yu Jiang
- School of Civil Engineering, Wuhan University, PR China
| | - Jiangyun Li
- School of Civil Engineering, Wuhan University, PR China
| | - Tengjing Gong
- School of Civil Engineering, Wuhan University, PR China
| | - Xue Li
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, PR China; Wuhan University Shenzhen Research Institute, Shenzhen, Guangdong, 518057, PR China.
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Zhang LM, Cui YX, Zhu LN, Chu JQ, Kong DM. Cationic porphyrins with large side arm substituents as resonance light scattering ratiometric probes for specific recognition of nucleic acid G-quadruplexes. Nucleic Acids Res 2019; 47:2727-2738. [PMID: 30715502 PMCID: PMC6451126 DOI: 10.1093/nar/gkz064] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 01/14/2019] [Accepted: 01/26/2019] [Indexed: 12/04/2022] Open
Abstract
Specific G-quadruplex-probing is crucial for both biological sciences and biosensing applications. Most reported probes are focused on fluorescent or colorimetric recognition of G-quadruplexes. Herein, for the first time, we reported a new specific G-quadruplex-probing technique-resonance light scattering (RLS)-based ratiometric recognition. To achieve the RLS probing of G-quadruplexes in the important physiological pH range of 7.4-6.0, four water soluble cationic porphyrin derivatives, including an unreported octa-cationic porphyrin, with large side arm substituents were synthesized and developed as RLS probes. These RLS probes were demonstrated to work well for ratiometric recognition of G-quadruplexes with high specificity against single- and double-stranded DNAs, including long double-stranded ones. The working mechanism was speculated to be based on the RLS signal changes caused by porphyrin protonation that was promoted by the end-stacking of porphyrins on G-quadruplexes. This work adds an important member in G-quadruplex probe family, thus providing a useful tool for studies on G-quadruplex-related events concerning G-quadruplex formation, destruction and changes in size, shape and aggregation. As a proof-of-concept example of applications, the RLS probes were demonstrated to work well for label-free and sequence-specific sensing of microRNA. This work also provides a simple and useful way for the preparation of cationic porphyrins with high charges.
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Affiliation(s)
- Li-Ming Zhang
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Yun-Xi Cui
- Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Li-Na Zhu
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Jun-Qing Chu
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - De-Ming Kong
- Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
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Feng DQ, Liu G, Ma G, Nan Z, Wang W. Phosphodiesters quaternary ammonium nanoparticles as label-free light scattering probe for turn-off detection of tyrosine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 208:1-6. [PMID: 30278308 DOI: 10.1016/j.saa.2018.09.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 09/21/2018] [Accepted: 09/23/2018] [Indexed: 06/08/2023]
Abstract
In this contribution, a new highly sensitive and selective sensor of the determination of tyrosine has been proposed based on the downturn effect of light scattering (LS) using phosphodiesters quaternary ammonium nanoparticles (PQANPs). Phosphodiesters quaternary ammonium (PQA), one of Gemini zwitterionic surfactants, self-aggregated into the micelle named as PQANPs, which generated strong LS signal in aqueous solution under the optimum condition. Interestingly, the powerful LS intensity of PQANPs with the maximum peak located at 391 nm significantly decreased after introducing trace amount of tyrosine. The decreased value of the LS intensity of the PQA-tyrosine system (ΔILS) was in proportion to tyrosine concentration in the ranges from 5.5 × 10-8 mol/L to 4.68 × 10-6 mol/L, with a detection limit of 1.38 × 10-8 mol/L. Based on this decreased LS situation, the novel approach of the determination of tyrosine was first developed. The reaction mechanism for the interaction between PQANPs and tyrosine was also investigated. Moreover, the proposed LS assay was applied to the detection of tyrosine concentration in human serum and urine samples with satisfactory results.
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Affiliation(s)
- Da-Qian Feng
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China; Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Guoliang Liu
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China; Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng 224051, PR China.
| | - Gangpo Ma
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Zhe Nan
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Wei Wang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
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Spectroscopic, thermodynamic and molecular docking studies on the interaction of two water-soluble asymmetric cationic porphyrins with calf thymus DNA. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01609-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Target-activatable gold nanoparticle-based aptasensing for protein biomarkers using stimuli-responsive aggregation. Talanta 2018; 192:112-117. [PMID: 30348365 DOI: 10.1016/j.talanta.2018.08.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 08/08/2018] [Accepted: 08/12/2018] [Indexed: 11/22/2022]
Abstract
An ultrasensitive and selective light-scattering (LS) aptasensor for prostate specific antigen (PSA) was developed based on bifunctional DNA decorated gold nanoparticles (Au NPs) by use of target stimuli-responsive assembly. Both binding sequence poly adenine (poly(dA), Domain I) and the recognition sequence aptamer (Domain II) of bifunctional ssDNA were in favor of the sensitivity for the fabricated light-scattering aptasensor due to modulated the lateral spacing of DNA on Au NPs surface and possessed strong antigen binding affinity, respectively. And they efficiently promoted the Au NPs aggregation and activated the signal of light-scattering of aptasensor. The formation of aptamer-PSA complex induced conformational transformation of the aptamer on the surface of the Au NPs-based aptasensor and then tuned the interparticle distance of gold nanoparticle assemblies. The larger scattering particles, the higher light-scattering intensity. Target stimuli-responsive aggregation behavior of Au NPs lit up the light-scattering signal of aptasensor. As the concentration of PSA increased, the light-scattering intensity gradually enhanced. The aptasensor response for PSA detection was in the linear range from 0.01 ng/mL to 20 ng/mL with the detection limit of 2 pg/mL. The thiol-free Au NPs-based light-scattering aptasensor has exceptional performances with ultrasensitivity and high selectivity besides the advantage of economic and facile fabrication. Moreover, the proposed target-activated aptasensor was applied for the detection of PSA in serum samples and demonstrated great potential in clinical applications.
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Massaro M, Cavallaro G, Colletti CG, D'Azzo G, Guernelli S, Lazzara G, Pieraccini S, Riela S. Halloysite nanotubes for efficient loading, stabilization and controlled release of insulin. J Colloid Interface Sci 2018; 524:156-164. [PMID: 29649624 DOI: 10.1016/j.jcis.2018.04.025] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 03/29/2018] [Accepted: 04/05/2018] [Indexed: 12/11/2022]
Abstract
HYPOTHESIS Oral insulin administration is not actually effective due to insulin rapid degradation, inactivation and digestion by proteolytic enzymes which results in low bioavailability. Moreover insulin is poorly permeable and lack of lipophilicity. These limits can be overcome by the loading of protein in some nanostructured carrier such as halloysite nanotubes (HNTs). EXPERIMENTS Herein we propose an easy strategy to obtain HNT hybrid materials for the delivery of insulin. We report a detailed description on the thermal behavior and stability of insulin loaded and released from the HNTs hybrid by the combination of several techniques. FINDINGS Release experiments of insulin from the HNTs revealed the efficacy of the nanocarrier. Circular Dichroism data evidenced that the released insulin exhibits its native-like secondary structure confirming the suitability of HNT/insulin as delivery system for at least three months. The loaded nanotubes were filled into chitosan matrix with the aim to prepare bionanocomposite films that can be used for transdermal delivery. This work puts forward an efficient strategy to prepare halloysite based nanocarriers containing insulin that could be employed in several biomedical applications. The detailed description of the prepared HNT/insulin hybrid represents a fundamental point for designing advanced delivery systems.
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Affiliation(s)
- Marina Massaro
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - Giuseppe Cavallaro
- Dipartimento di Fisica e Chimica (DiFC), University of Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - Carmelo G Colletti
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - Giuseppe D'Azzo
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - Susanna Guernelli
- Dipartimento di Chimica "Giacomo Ciamician", University of Bologna, Via S. Giacomo 11, 40126 Bologna, Italy
| | - Giuseppe Lazzara
- Dipartimento di Fisica e Chimica (DiFC), University of Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - Silvia Pieraccini
- Dipartimento di Chimica "Giacomo Ciamician", University of Bologna, Via S. Giacomo 11, 40126 Bologna, Italy
| | - Serena Riela
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy.
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Zhou J, Lan Y, Lei F, Zhao Y, Lu J, Huang Q, Li P, Li H, Zhang J. Synthesis, surface properties and temperature dependence of phase separation of DSPE chains in ethanol solutions. NEW J CHEM 2018. [DOI: 10.1039/c8nj01781f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The surface properties, phase separation processes and kinetics of a DSPE/ethanol solution were investigated.
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Affiliation(s)
- Juying Zhou
- School of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning 530006
- P. R. China
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products
| | - Yanjiao Lan
- School of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning 530006
- P. R. China
| | - Fuhou Lei
- School of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning 530006
- P. R. China
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products
| | - Yanzhi Zhao
- School of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning 530006
- P. R. China
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products
| | - Jianfang Lu
- School of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning 530006
- P. R. China
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products
| | - Qin Huang
- School of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning 530006
- P. R. China
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products
| | - Pengfei Li
- School of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning 530006
- P. R. China
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products
| | - Hao Li
- School of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning 530006
- P. R. China
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products
| | - Jinyan Zhang
- School of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning 530006
- P. R. China
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Wang J, Xue J, Xiao X, Xu L, Jiang M, Peng P, Liao L. Determination of thorium (IV) using isophthalaldehyde-tetrapyrrole as probe by resonance light scattering, second-order scattering and frequency-doubling scattering spectra. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 187:104-109. [PMID: 28668731 DOI: 10.1016/j.saa.2017.06.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 06/21/2017] [Accepted: 06/25/2017] [Indexed: 06/07/2023]
Abstract
The coordination reaction of thorium (IV) with a ditopic bidentate ligand to form supramolecular polymer was studied by resonance light scattering (RLS) spectra, second-order scattering (SOS) spectra and frequency-doubling scattering (FDS) spectra, respectively. The ditopic bidentate ligand is isophthalaldehyde-tetrapyrrole (IPTP). It was synthesized through a condensation reaction of isophthalaldehyde with pyrrole. The formation of supramolecular polymer results in remarkable intensity enhancements of the three light scattering signals. The maximum scattering wavelengths of RLS, FDS and SOS were 290, 568 and 340nm, respectively. The reaction was used to establish new light scattering methods for the determination of thorium (IV) by using IPTP as probe. Under optimum conditions, the intensity enhancements of RLS, SOS and FDS were directly proportional to the concentration of thorium (IV) in the ranges of 0.01 to 1.2μgmL-1, 0.05 to 1.2μgmL-1 and 0.05 to 1.2μgmL-1, respectively. The detection limits were 0.003μgmL-1, 0.012μgmL-1 and 0.021μgmL-1, respectively. The methods were suitable for analyzing thorium (IV) in actual samples. The results show acceptable recoveries and precision compared with a reference method.
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Affiliation(s)
- Jiao Wang
- School of Chemistry and Chemical Engineering, School of Public Health, University of South China, Hengyang City, Hunan Province 421001, China
| | - Jinhua Xue
- School of Chemistry and Chemical Engineering, School of Public Health, University of South China, Hengyang City, Hunan Province 421001, China
| | - Xilin Xiao
- School of Chemistry and Chemical Engineering, School of Public Health, University of South China, Hengyang City, Hunan Province 421001, China.
| | - Li Xu
- School of Chemistry and Chemical Engineering, School of Public Health, University of South China, Hengyang City, Hunan Province 421001, China
| | - Min Jiang
- School of Chemistry and Chemical Engineering, School of Public Health, University of South China, Hengyang City, Hunan Province 421001, China
| | - Pengcheng Peng
- School of Chemistry and Chemical Engineering, School of Public Health, University of South China, Hengyang City, Hunan Province 421001, China
| | - Lifu Liao
- School of Chemistry and Chemical Engineering, School of Public Health, University of South China, Hengyang City, Hunan Province 421001, China.
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16
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Lv Y, Chen L, Liu H, Zhang S, Wang M, Tan Y. Surface Activity Properties and Aggregation Behaviors of Partially Fluorinated Gemini Surfactants in Aqueous Solution. J SURFACTANTS DETERG 2017. [DOI: 10.1007/s11743-017-1946-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Zhou J, Yang Y, Liang Y, Lei F, Xu H, Lu J, Zhao Y, Zhou Y. Adsorption Behavior of Trimethylolpropane-Dehydroabietic Acid Ester at the Air–water Interface. J SURFACTANTS DETERG 2016. [DOI: 10.1007/s11743-016-1873-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Shortell MP, Hewins RA, Fernando JFS, Walden SL, Waclawik ER, Jaatinen EA. Multi-angle fluorometer technique for the determination of absorption and scattering coefficients of subwavelength nanoparticles. OPTICS EXPRESS 2016; 24:17090-17102. [PMID: 27464160 DOI: 10.1364/oe.24.017090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A thorough analysis of the resonance light scattering (RLS) technique for quantitative scattering measurements of subwavelength nanoparticles is reported. The systematic error associated with using a measurement at a single angle to represent all of the scattered light is investigated. In-depth analysis of the reference material was performed to identify and minimize the error associated with the reference material. Semiconductor ZnO nanobullets and spherical Au nanoparticles of various sizes were used to verify the approach. A simple and inexpensive modification to standard fluorometers is demonstrated using a glass prism allowing scattering measurements in the slightly forward and backwards directions. This allows quantification of the systematic error associated with RLS which is consistently overlooked.
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19
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Tian L, Hu X, Liu Z, Liu S. Studies on the interaction of heparin with lysozyme by multi-spectroscopic techniques and atomic force microscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 154:27-32. [PMID: 26505285 DOI: 10.1016/j.saa.2015.09.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 08/01/2015] [Accepted: 09/27/2015] [Indexed: 06/05/2023]
Abstract
The interaction between heparin (Hep) and lysozyme (Lyso) in vitro was studied by fluorescence, UV-vis, circular dichroism (CD), resonance Rayleigh scattering (RRS) spectroscopy and atomic force microscopy (AFM) under normal physiological conditions. UV-vis spectra of Lyso showed the absorbance was significantly increased with the addition of Hep. Fluorescence studies revealed that the emission quenching of Lyso with Hep was initiated by static quenching mechanism. CD spectral studies showed that Hep induced conformational changes in the secondary structure of Lyso. RRS spectra of Lyso showed the intensity of scattering was significantly increased with the addition of Hep and the enhanced RRS intensities were proportional to the concentration of Hep in a certain range. Thus, a new RRS method using Lyso as a probe could be used for the determination of Hep. The detection limit for Hep was 3.9 ng mL(-1). In addition, the shape of the complex was characterized by AFM. The possible reaction mechanism and the reasons for the enhancement of RRS intensity had been discussed through experimental results.
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Affiliation(s)
- Lunfu Tian
- Institute of Mechanical Manufacturing Technology, Chinese Academy of Engineering Physics, Mianyang 621900, China; Education Ministry Key Laboratory on Luminescence and Real-Time Analysis, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xiaoli Hu
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Zhongfang Liu
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Shaopu Liu
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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20
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Li Q, Tan X, Zheng X, Tang W, Yang J. A novel method for the determination of fast green in grape wine based on resonance Rayleigh scattering. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.05.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Li S, Liao L, Wu R, Yang Y, Xu L, Xiao X, Nie C. Resonance light scattering detection of fructose bisphosphates using uranyl-salophen complex-modified gold nanoparticles as optical probe. Anal Bioanal Chem 2015; 407:8911-8. [PMID: 26403237 DOI: 10.1007/s00216-015-9050-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Revised: 08/30/2015] [Accepted: 09/15/2015] [Indexed: 11/25/2022]
Abstract
In this paper, we report a resonance light scattering (RLS) method for the determination of fructose bisphosphates (FBPs) in water solution using fructose 1,6-bisphosphate (F-1,6-BP) as a model analyte without the procedure of extracting target analyte. The method used a type of modified gold nanoparticles (GNPs) as optical probe. The modified GNPs are uranyl-salophen-cysteamine-GNPs (U-Sal-Cy-GNPs) which are obtained through the acylation reaction of carboxylated salophen with cysteamine-capped GNPs (Cy-GNPs) to form Sal-Cy-GNPs and then the chelation reaction of uranyl with tetradentate ligand salophen in the Sal-Cy-GNPs. A FBP molecule is used easily to connect two U-Sal-Cy-GNPs to cause the aggregation of the GNPs by utilizing the specific affinity of uranyl-salophen complex to phosphate group, resulting in the production of strong RLS signal from the system. The amount of FBPs can be determined through detecting the RLS intensity change of the system. A linear range was found to be 2.5 to 75 nmol/L with a detection limit of 0.91 nmol/L under optimal conditions. The method has been successfully used to determine FBPs in real samples with the recoveries of 96.5-103.5 %.
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Affiliation(s)
- Shijun Li
- College of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China
| | - Lifu Liao
- College of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China.
| | - Rurong Wu
- College of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China
| | - Yanyan Yang
- College of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China
| | - Li Xu
- College of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China
| | - Xilin Xiao
- College of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China
| | - Changming Nie
- College of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China
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22
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Liang X, Wu S, Ren X, Quan D, Zhang L, Deng Y, Yang L. Complexation behaviors of hyperbranched cationic glycogen derivatives with plasmid DNA revealed by resonance light scattering and circular dichroism spectroscopy. STARCH-STARKE 2015. [DOI: 10.1002/star.201400224] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Xuan Liang
- Department of Polymer and Material ScienceSchool of Chemistry and Chemical EngineeringKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationKey Laboratory of Designed Synthesis and Application of Polymer Material of Guangdong ProvinceKey Laboratory for High Performance Polymer‐based Composites of Guangdong ProvinceGuangdong Provincial Key Laboratory for High Performance Polymer‐based CompositesSun Yat‐Sen UniversityGuangzhouChina
| | - Shuyun Wu
- Department of Polymer and Material ScienceSchool of Chemistry and Chemical EngineeringKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationKey Laboratory of Designed Synthesis and Application of Polymer Material of Guangdong ProvinceKey Laboratory for High Performance Polymer‐based Composites of Guangdong ProvinceGuangdong Provincial Key Laboratory for High Performance Polymer‐based CompositesSun Yat‐Sen UniversityGuangzhouChina
| | - Xianyue Ren
- Research Center of Translational Medicine, The First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Daping Quan
- Department of Polymer and Material ScienceSchool of Chemistry and Chemical EngineeringKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationKey Laboratory of Designed Synthesis and Application of Polymer Material of Guangdong ProvinceKey Laboratory for High Performance Polymer‐based Composites of Guangdong ProvinceGuangdong Provincial Key Laboratory for High Performance Polymer‐based CompositesSun Yat‐Sen UniversityGuangzhouChina
| | - Li‐Ming Zhang
- Department of Polymer and Material ScienceSchool of Chemistry and Chemical EngineeringKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationKey Laboratory of Designed Synthesis and Application of Polymer Material of Guangdong ProvinceKey Laboratory for High Performance Polymer‐based Composites of Guangdong ProvinceGuangdong Provincial Key Laboratory for High Performance Polymer‐based CompositesSun Yat‐Sen UniversityGuangzhouChina
| | - Yubing Deng
- Research Center of Translational Medicine, The First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Liqun Yang
- Department of Polymer and Material ScienceSchool of Chemistry and Chemical EngineeringKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationKey Laboratory of Designed Synthesis and Application of Polymer Material of Guangdong ProvinceKey Laboratory for High Performance Polymer‐based Composites of Guangdong ProvinceGuangdong Provincial Key Laboratory for High Performance Polymer‐based CompositesSun Yat‐Sen UniversityGuangzhouChina
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23
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Xu C, Liao L, He Y, Wu R, Li S, Yang Y. Resonance light scattering detection of uranium based on its reaction with a Schiff base containing tetradentate ligand and phosphate groups to form supramolecular polymer. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-015-3929-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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24
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Feng DQ, Liu G, Wang W. A novel biosensor for copper(ii) ions based on turn-on resonance light scattering of ssDNA templated silver nanoclusters. J Mater Chem B 2015; 3:2083-2088. [DOI: 10.1039/c4tb01940g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new ultrasensitive biosensor for copper(ii) ions was first developed based on turn-on resonance light scattering (RLS) of ssDNA templated silver nanoclusters through anti-galvanic reduction (AGR).
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Affiliation(s)
- Da-Qian Feng
- School of Chemical and Biological Engineering
- Yancheng Institute of Technology
- China
| | - Guoliang Liu
- School of Chemical and Biological Engineering
- Yancheng Institute of Technology
- China
| | - Wei Wang
- School of Chemical and Biological Engineering
- Yancheng Institute of Technology
- China
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25
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Vitale P, D'Anna F, Ferrante F, Rizzo C, Noto R. π-Conjugated diimidazolium salts: rigid structure to obtain organized materials. Phys Chem Chem Phys 2015; 17:26903-17. [DOI: 10.1039/c5cp03808a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photophysical properties and aggregation ability of π-conjugated diimidazolium salts were studied in solution and in the solid state. Experimental investigations were supported by DFT calculations.
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Affiliation(s)
- Paola Vitale
- Università degli Studi di Palermo
- Dipartimento STEBICEF
- Sezione di Chimica
- 90128 Palermo
- Italy
| | - Francesca D'Anna
- Università degli Studi di Palermo
- Dipartimento STEBICEF
- Sezione di Chimica
- 90128 Palermo
- Italy
| | - Francesco Ferrante
- Università degli Studi di Palermo
- Dipartimento di Fisica e Chimica
- 90128 Palermo
- Italy
| | - Carla Rizzo
- Università degli Studi di Palermo
- Dipartimento STEBICEF
- Sezione di Chimica
- 90128 Palermo
- Italy
| | - Renato Noto
- Università degli Studi di Palermo
- Dipartimento STEBICEF
- Sezione di Chimica
- 90128 Palermo
- Italy
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26
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Synthesis, Characterization and Aqueous Properties of a New Hybrid Fluorocarbon Cationic Surfmer. J SURFACTANTS DETERG 2014. [DOI: 10.1007/s11743-014-1649-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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27
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Tisserant JN, Brönnimann R, Hany R, Jenatsch S, Nüesch FA, Mezzenga R, Bona GL, Heier J. Resonance light scattering in dye-aggregates forming in dewetting droplets. ACS NANO 2014; 8:10057-10065. [PMID: 25203916 DOI: 10.1021/nn5040839] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Small organic semiconducting molecules assembling into supramolecular J- and H- aggregates have attracted much attention due to outstanding optoelectronic properties. However, their easy and reproducible fabrication is not yet sufficiently developed for industrial applications, except for silver halide photography. Here we present a method based on aggregate precipitation during the phase separation and dewetting of the evaporating dye precursor solution. The smaller the precursor droplets, the more pronounced the J-aggregation. The aggregates cause the films to resonantly scatter incoming light. Because the dye aggregate extinction resonances have narrowest bandwidths, a wavelength selectivity is observed that exceeds the selectivity of localized surface plasmon resonances. The aggregation mechanism can be easily applied to periodically structured substrates, making the method appealing for photonic applications. We demonstrate this point with a 2D grating, where the narrow absorption range of the aggregates leads to wavelength specific (one color only) scattering.
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Affiliation(s)
- Jean-Nicolas Tisserant
- Laboratory for Functional Polymers, Empa, Swiss Federal Laboratories for Materials Science and Technology , Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
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28
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He Y, Liao L, Xu C, Wu R, Li S, Yang Y. Determination of ATP by resonance light scattering using a binuclear uranyl complex and aptamer modified gold nanoparticles as optical probes. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1350-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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29
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A resonance light scattering method for the determination of uranium based on a water-soluble salophen and oxalate. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3225-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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Liu X, Yu X, Luo X. Ultrasensitive iodide detection based on the resonance light scattering of histidine-stabilized gold nanoclusters. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1268-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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31
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Lignin binding to pancreatic lipase and its influence on enzymatic activity. Food Chem 2014; 149:99-106. [DOI: 10.1016/j.foodchem.2013.10.067] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 09/05/2013] [Accepted: 10/15/2013] [Indexed: 11/22/2022]
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32
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Navarro JRG, Werts MHV. Resonant light scattering spectroscopy of gold, silver and gold-silver alloy nanoparticles and optical detection in microfluidic channels. Analyst 2014; 138:583-92. [PMID: 23172138 DOI: 10.1039/c2an36135c] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Dark field resonant light scattering by gold and silver nanoparticles enables the detection and spectroscopy of such particles with high sensitivity, down to the single-particle level, and can be used to implement miniaturised optical detection schemes for chemical and biological analysis. Here, we present a straightforward optical spectroscopic methodology for the quantitative spectrometric study of resonant light scattering (RLS) by nanoparticles. RLS spectroscopy is complementary to UV-visible absorbance measurements, and we apply it to the characterisation and comparison of different types of gold, silver and gold-silver alloy nanoparticles. The potential of gold and silver particles as alternatives for fluorescent probes in certain applications is discussed. RLS spectroscopy is shown to be useful for studying analyte-induced gold nanoparticle assembly and nanoparticle chemistry, which can induce radical changes in the plasmonic resonances responsible for the strong light scattering. Furthermore, the feasibility of dark field RLS detection and quantitation of metal nanoparticles in microfluidic volumes is demonstrated, opening interesting possibilities for the further development of microfluidic detection schemes.
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Affiliation(s)
- Julien R G Navarro
- Ecole Normale Supérieure de Cachan-Bretagne, SATIE (UMR 8029), Campus de Ker Lann, F-35170 Bruz, France
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33
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Huang Y, Lin W, Chen K, Zhang W, Chen X, Zhang MQ. Thermoresponsive fluorescence of a graphene–polymer composite based on a local surface plasmon resonance effect. Phys Chem Chem Phys 2014; 16:11584-9. [DOI: 10.1039/c4cp00773e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pNIPAM shell traps silver nanoparticles in solution and gets them close to the graphene core to provide fluorescence enhancement.
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Affiliation(s)
- Yunyun Huang
- Key Lab Polym Compos & Funct Mat
- Key Lab Designed Synth & Appl Polym Mat
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou, 510275 China
| | - Wensheng Lin
- Key Lab Polym Compos & Funct Mat
- Key Lab Designed Synth & Appl Polym Mat
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou, 510275 China
| | - Kan Chen
- Key Lab Polym Compos & Funct Mat
- Key Lab Designed Synth & Appl Polym Mat
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou, 510275 China
| | - Wenkai Zhang
- Key Lab Polym Compos & Funct Mat
- Key Lab Designed Synth & Appl Polym Mat
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou, 510275 China
| | - Xudong Chen
- Key Lab Polym Compos & Funct Mat
- Key Lab Designed Synth & Appl Polym Mat
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou, 510275 China
| | - Ming Qiu Zhang
- Key Lab Polym Compos & Funct Mat
- Key Lab Designed Synth & Appl Polym Mat
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou, 510275 China
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34
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Quantitative description of aggregation and dissociation of poly (vinyl methyl ether)/poly (2-ethyl-2-oxazoline) chains in water by novel elastic light scattering spectroscopy. Polym Bull (Berl) 2013. [DOI: 10.1007/s00289-013-1058-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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35
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Sandwich immunoassay for alpha-fetoprotein in human sera using gold nanoparticle and magnetic bead labels along with resonance Rayleigh scattering readout. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-0965-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Xiao CQ, Feng BY, Ge YS, Fan XY, Jiang FL, Xiao G, Liu Y. Comprehensive Study of the Interaction Between a Potential Antiprion Cationic Porphyrin and Human Prion Protein at Different pH by Using Multiple Spectroscopic Methods. J Pharm Sci 2013; 102:1076-85. [DOI: 10.1002/jps.23420] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2012] [Revised: 11/04/2012] [Accepted: 11/21/2012] [Indexed: 11/09/2022]
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37
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Feng DQ, Liu G, Zheng W, Chen T, Li D. A new light-scattering sensor for screening G-quadruplex stabilizers based on DNA-folding-mediated assembly of gold nanoparticles. J Mater Chem B 2013; 1:3057-3063. [DOI: 10.1039/c3tb20291g] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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38
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Liu G, Feng DQ, Zheng W, Chen T, Li D. An anti-galvanic replacement reaction of DNA templated silver nanoclusters monitored by the light-scattering technique. Chem Commun (Camb) 2013; 49:7941-3. [DOI: 10.1039/c3cc44126a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Macpherson HA, Stoldt CR. Iron pyrite nanocubes: size and shape considerations for photovoltaic application. ACS NANO 2012; 6:8940-9. [PMID: 22978247 DOI: 10.1021/nn3029502] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Multiple lines of recent research indicate that iron pyrite (FeS(2)) requires a {100}-terminated crystal morphology in order to maintain semiconducting properties. Additionally, the large absorption coefficient of pyrite allows for the near complete absorption of above band gap radiation in <50 nm layers. However, to our knowledge <50 nm pyrite nanocubes have yet to be isolated. Herein, we demonstrate the synthesis of ~37 nm phase pure pyrite nanocubes by manipulating the sulfur chemical potential and ligand environment of the system. Ultraviolet-visible (UV-vis) absorption spectroscopy gives a signal of resonant light scattering indicating strong electronic coupling between nanocubes, which may allow for nanocube films with superior electron mobility. The absorption spectroscopies of cubic and irregular nanocrystals are contrasted and compared with recent theoretical work in order to investigate the effect of shape on electronic properties. Specifically, nanocubes have been found to have absorption characteristics closer to theory as compared to irregular nanocrystals, especially for UV radiation: 250-350 nm. Pyrite nanocubes display an indirect band gap at ~1.1 eV in addition to two direct transitions at ~1.9 and ~3.0 eV, correlating well to theoretical values.
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Affiliation(s)
- H Alex Macpherson
- Department of Mechanical Engineering, University of Colorado, Boulder, Colorado, USA
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40
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Xiang H, Luo Q, Dai K, Duan W, Fan Y, Xie Y. Use of cetyltrimethylammonium bromide as a simple probe for rapid determination of emodin by resonance light scattering technique. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 96:874-881. [PMID: 22929864 DOI: 10.1016/j.saa.2012.07.093] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Revised: 06/11/2012] [Accepted: 07/05/2012] [Indexed: 06/01/2023]
Abstract
A new resonance light scattering (RLS) method for emodin determination with cationic surfactant cetyltrimethylammonium bromide (CTAB) as probe has been developed. In Britton-Robinson buffer (pH 6.5) medium, emodin reacted with cationic surfactant CTAB and formed the emodin-CTAB complex. The complex aggregated together through hydrophobic forces and causing great enhancement of RLS signals with the maximum peak located at about 350 nm. The enhanced RLS intensities were found to be proportional to the concentration of emodin in the range of 0.54-9.72 μg ml(-1) with the detection limit (3σ) of 10.3 ng ml(-1). In this work, the characteristics of RLS, absorption, fluorescence spectra of the system were studied. The optimum reaction condition and the influencing factors on the RLS signal were investigated in detail. The proposed method was applied to the analysis of emodin in synthetic samples and human urine with satisfactory results. Furthermore, the forms of the substances under the experimental condition and the mechanism of the reaction were discussed in detail.
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Affiliation(s)
- Haiyan Xiang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
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41
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Interaction between insulin and calf thymus DNA, and quantification of insulin and calf thymus DNA by a resonance Rayleigh scattering method. Mikrochim Acta 2012. [DOI: 10.1007/s00604-012-0891-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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42
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Chen Z, Lei Y, Chen X. Immunoassay for serum alpha-fetoprotein using silver nanoparticles and detection via resonance light scattering. Mikrochim Acta 2012. [DOI: 10.1007/s00604-012-0888-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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43
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Yang K, Yang YZ, Hu CL, Huang YY, Zhang WK, Chen XD, Zhang MQ. Competition Between Motion Constraint and Aggregation of Macromolecular Chains in Poly(vinyl methyl ether)/Poly(ethylene oxide) Aqueous Solution During Phase Transition. MACROMOL CHEM PHYS 2012. [DOI: 10.1002/macp.201200090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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44
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Solution properties of hydrophobically modified acrylamide-based polysulfobetaines in the presence of surfactants. Colloid Polym Sci 2012. [DOI: 10.1007/s00396-012-2633-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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45
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Detection of DNA hybridization by various spectroscopic methods using the copper tetraphenylporphyrin complex as a probe. Mikrochim Acta 2012. [DOI: 10.1007/s00604-011-0754-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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46
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Liu G, Feng DQ, Chen T, Li D, Zheng W. DNA-templated formation of silver nanoclusters as a novel light-scattering sensor for label-free copper ions detection. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm35236b] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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47
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Investigation on the interaction between anthracyclines and DNA in the presence of paclitaxel by resonance light scattering technique. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0747-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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48
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Interaction of adenine with palladium chloride, determination of adenine via resonance Rayleigh scattering method. Anal Chim Acta 2011; 707:114-20. [DOI: 10.1016/j.aca.2011.08.051] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 07/27/2011] [Accepted: 08/29/2011] [Indexed: 11/18/2022]
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Chen Z, Qian S, Liu G, Chen X, Chen J. Highly sensitive determination of doxorubicin and daunorubicin based on their effect on the resonance light scattering signals of the ethidium-DNA complex. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0692-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Conformational transition and its dynamics of naphthalene-labeled poly (octadecyl vinyl ether) chains in dichloromethane solution. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.05.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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