1
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Pastore A, Badocco D, Cappellin L, Tubiana M, Pastore P. Positively Charged Organosilanes Covalently Linked to the Silica Network as Modulating Tools for the Salinity Correction of pH Values Obtained with Colorimetric Sensor Arrays (CSAs). SENSORS (BASEL, SWITZERLAND) 2024; 24:417. [PMID: 38257510 PMCID: PMC10818285 DOI: 10.3390/s24020417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/30/2023] [Accepted: 01/03/2024] [Indexed: 01/24/2024]
Abstract
Seven increasing levels of water salinity from 0.029 to 0.600 M (as NaCl) were used to investigate the dependence of pH measurement, performed using colorimetric sensor arrays (CSAs), on ionic strength. The CSAs were arrays of sensing spots prepared in the form of sol-gel-embedding Bromothymol Blue (BB) and Bromocresol Green (BCG) in a porous nitrocellulose support. The support was impregnated over the entire thickness (≈100 µm), allowing for the signal (Hue) acquisition on the opposite side to the contact with the sample solution. Three CSAs were prepared, M1, M2, and M3. M1 contained a free cationic surfactant, hexadecyltrimethylammonium p-toluenesulfonate (CTApTs), for modulating the pKa of the indicators. In M2, the surfactant dimethyloctadecyl[3-(trimethoxysilyl)propyl]ammonium chloride (DTSACl) was covalently bonded to the sol-gel. M3 was prepared like M2 but using a larger amount of ethanol as the solvent for the synthesis. The modulation of the CTApTs or the DTSACl concentration enabled the tuning of the pKa. In general, the pKa modulation ability decreased with the increase in salinity. The presence of a surfactant covalently linked to the backbone partially reduced the competitiveness of the anionic species, improving the results. Nevertheless, the salt effect was still present, and a correction algorithm was required. Between pH 5.00 and 12.00, this correction could be made automatically by using spots taken as references to produce sensors independent of salinity. As the salt effect is virtually absent above 0.160 M, M2 and M3 can be used for future applications in seawater.
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Affiliation(s)
| | | | | | | | - Paolo Pastore
- Department of Chemical Sciences, University of Padua, Via Marzolo 1, 35131 Padua, Italy; (A.P.); (D.B.); (L.C.); (M.T.)
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2
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Li H, Zheng S, Tan QG, Zhan L, Martz TR, Ma J. Toward Citizen Science-Based Ocean Acidification Observations Using Smartphone Devices. Anal Chem 2023; 95:15409-15417. [PMID: 37734114 DOI: 10.1021/acs.analchem.3c03720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
pH is a key parameter in many chemical, biological, and biogeochemical processes, making it a fundamental aspect of environmental monitoring. Rapid and accurate seawater pH measurements are essential for effective ocean observation and acidification investigations, resulting in the need for novel solutions that allow robust, precise, and affordable pH monitoring. In this study, a versatile smartphone-based environmental analyzer (vSEA) was used for the rapid measurement of seawater pH in a field study. The feasibility of the use of the vSEA algorithm for pH quantification was explored and verified. When used in conjunction with a three-dimensional (3D)-printed light-proof shell, the quality of captured images is guaranteed. The quantitative accuracy of vSEA pH measurements reached 0.018 units with an uncertainty of <0.01, meeting the requirements of the Global Ocean Acidification Observing Network (GOA-ON) for "weather" goals (permitting a maximum pH uncertainty of 0.02). The vSEA-pH system was successfully applied for on-site pH measurements in coastal seawater and coral systems. The performance of the vSEA-pH system was validated using different real-world samples, and t-test results showed that the vSEA-pH system was consistent with pH measurements obtained using a state-of-the-art benchtop spectrophotometer (t = 1.986, p = 0.7949). The vSEA-pH system is applicable to different types of smartphone devices, making it possible for vSEA-pH to be widely promoted for public citizen use. The vSEA-pH system offers a simple, accurate, and applicable method for the on-site measurement of seawater pH, assisting the large-scale monitoring of ocean acidification by allowing the contribution of citizen science-based data collection.
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Affiliation(s)
- Hangqian Li
- State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen 361102, People's Republic of China
| | - Shulu Zheng
- State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen 361102, People's Republic of China
| | - Qiao-Guo Tan
- State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen 361102, People's Republic of China
| | - Liyang Zhan
- Third Institute of Oceanography, Key Laboratory of Global Change & Marine Atmospheric Chemistry, Ministry of Natural Resources, Xiamen 361000, People's Republic of China
| | - Todd R Martz
- Scripps Institution of Oceanography, University of California San Diego, San Diego, California 92093, United States
| | - Jian Ma
- State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen 361102, People's Republic of China
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3
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Sakr AR, Georgiev NI, Bojinov VB. Design and Synthesis of a Novel ICT Bichromophoric pH Sensing System Based on 1,8-Naphthalimide Fluorophores as a Two-Input Logic Gate and Its Antibacterial Evaluation. Molecules 2023; 28:molecules28083631. [PMID: 37110865 PMCID: PMC10145821 DOI: 10.3390/molecules28083631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/12/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
The synthesis, sensor activity, and logic behavior of a novel 4-iminoamido-1,8-naphthalimide bichromophoric system based on a "fluorophore-receptor" architecture with ICT chemosensing properties is reported. The synthesized compound showed good colorimetric and fluorescence signaling properties as a function of pH and proved itself as a promising probe for the rapid detection of pH in an aqueous solution and base vapors in a solid state. The novel dyad is able to work as a two-input logic gate with chemical inputs H+ (Input 1) and HO- (Input 2) executing INHIBIT logic gate. The synthesized bichromophoric system and the corresponding intermediates demonstrated good antibacterial activity toward Gram (+) and Gram (-) bacteria when compared with the Gentamycin standard.
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Affiliation(s)
- Alaa R Sakr
- Department of Organic Synthesis, University of Chemical Technology and Metallurgy, 8 Kliment Ohridsky Str., 1756 Sofia, Bulgaria
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Nikolai I Georgiev
- Department of Organic Synthesis, University of Chemical Technology and Metallurgy, 8 Kliment Ohridsky Str., 1756 Sofia, Bulgaria
| | - Vladimir B Bojinov
- Department of Organic Synthesis, University of Chemical Technology and Metallurgy, 8 Kliment Ohridsky Str., 1756 Sofia, Bulgaria
- Bulgarian Academy of Sciences, 1040 Sofia, Bulgaria
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4
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Lorente A, Ochoa A, Rodriguez-Lavado J, Rodriguez-Nuévalos S, Jaque P, Gil S, Sáez JA, Costero AM. Unconventional OFF-ON Response of a Mono(calix[4]arene)-Substituted BODIPY Sensor for Hg 2+ through Dimerization Reversion. ACS OMEGA 2023; 8:819-828. [PMID: 36643454 PMCID: PMC9835786 DOI: 10.1021/acsomega.2c06161] [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: 09/23/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
A new selective fluorogenic chemosensor for Hg2+, which combines a calixarene derivative with a BODIPY core as a fluorescent reporter, is described. The remarkable change in its fluorogenic properties in DMSO and CHCl3 has been analyzed. A study of its spectral properties on dilution, along with molecular modeling studies, allowed us to explain that this behavior involves the formation of a J-dimer, as well as how the sensing mechanism of Hg2+ proceeds.
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Affiliation(s)
- Alejandro Lorente
- Departamento
de Química Orgánica y Fisicoquímica, Facultad
de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos 1007, 8380492 Independencia, Santiago, Chile
- Institut
für Chemie und Biochemie, Freie Universität
Berlin, Arminallee 22, 14195 Berlin, Germany
| | - Andres Ochoa
- Departamento
de Química Orgánica y Fisicoquímica, Facultad
de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos 1007, 8380492 Independencia, Santiago, Chile
| | - Julio Rodriguez-Lavado
- Departamento
de Química Orgánica y Fisicoquímica, Facultad
de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos 1007, 8380492 Independencia, Santiago, Chile
| | - Silvia Rodriguez-Nuévalos
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico, Universitat
de València-Universitat Politècnica de València, Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - Pablo Jaque
- Departamento
de Química Orgánica y Fisicoquímica, Facultad
de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos 1007, 8380492 Independencia, Santiago, Chile
| | - Salvador Gil
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico, Universitat
de València-Universitat Politècnica de València, Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
- Departamento
de Química Orgánica, Universidad
de Valencia, Doctor Moliner
50, Burjassot, 46100 Valencia, Spain
| | - José A. Sáez
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico, Universitat
de València-Universitat Politècnica de València, Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
- Departamento
de Química Orgánica, Universidad
de Valencia, Doctor Moliner
50, Burjassot, 46100 Valencia, Spain
| | - Ana M. Costero
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico, Universitat
de València-Universitat Politècnica de València, Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
- Departamento
de Química Orgánica, Universidad
de Valencia, Doctor Moliner
50, Burjassot, 46100 Valencia, Spain
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5
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Bakov VV, Georgiev NI, Bojinov VB. A Novel Fluorescent Probe for Determination of pH and Viscosity Based on a Highly Water-Soluble 1,8-Naphthalimide Rotor. Molecules 2022; 27:molecules27217556. [PMID: 36364383 PMCID: PMC9657100 DOI: 10.3390/molecules27217556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 10/29/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022] Open
Abstract
A novel highly water-soluble 1,8-naphthalimide with pH and viscosity-sensing fluorescence was synthesized and investigated. The synthesized compound was designed as a molecular device in which a molecular rotor and molecular “off-on” switcher were integrated. In order to obtain a TICT driven molecular motion at C-4 position of the 1,8-naphthalimide fluorophore, a 4-methylpiperazinyl fragment was introduced. The molecular motion was confirmed after photophysical investigation in solvents with different viscosity; furthermore, the fluorescence-sensing properties of the examined compound were investigated in 100% aqueous medium and it was found that it could be used as an efficient fluorescent probe for pH. Due to the non-emissive deexcitation nature of the TICT fluorophore, the novel system showed low yellow–green emission, which represented “power-on”/“rotor-on” state. The protonation of the methylpiperazine amine destabilized the TICT process, which was accompanied by fluorescence enhancement indicating a “power-on”/“rotor-off” state of the system. The results obtained clearly illustrated the great potential of the synthesized compound to serve as pH- and viscosity-sensing material in aqueous solution.
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Affiliation(s)
- Ventsislav V. Bakov
- Department of Organic Synthesis, University of Chemical Technology and Metallurgy, 8 Kliment Ohridsky Str., 1756 Sofia, Bulgaria
| | - Nikolai I. Georgiev
- Department of Organic Synthesis, University of Chemical Technology and Metallurgy, 8 Kliment Ohridsky Str., 1756 Sofia, Bulgaria
- Correspondence: (N.I.G.); (V.B.B.); Tel.: +359-2-8163207 (N.I.G.); +359-2-8163206 (V.B.B.)
| | - Vladimir B. Bojinov
- Department of Organic Synthesis, University of Chemical Technology and Metallurgy, 8 Kliment Ohridsky Str., 1756 Sofia, Bulgaria
- Bulgarian Academy of Sciences, 1040 Sofia, Bulgaria
- Correspondence: (N.I.G.); (V.B.B.); Tel.: +359-2-8163207 (N.I.G.); +359-2-8163206 (V.B.B.)
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6
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8-Hydroxyquinoline-BODIPY based dual mode pH probe: Intuits acidic and basic environments through two different mechanisms. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Behbahani SB, Kiridena SD, Wijayaratna UN, Taylor C, Anker JN, Tzeng TRJ. pH variation in medical implant biofilms: Causes, measurements, and its implications for antibiotic resistance. Front Microbiol 2022; 13:1028560. [PMID: 36386694 PMCID: PMC9659913 DOI: 10.3389/fmicb.2022.1028560] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 09/22/2022] [Indexed: 01/28/2023] Open
Abstract
The advent of implanted medical devices has greatly improved the quality of life and increased longevity. However, infection remains a significant risk because bacteria can colonize device surfaces and form biofilms that are resistant to antibiotics and the host's immune system. Several factors contribute to this resistance, including heterogeneous biochemical and pH microenvironments that can affect bacterial growth and interfere with antibiotic biochemistry; dormant regions in the biofilm with low oxygen, pH, and metabolites; slow bacterial growth and division; and poor antibody penetration through the biofilm, which may also be regions with poor acid product clearance. Measuring pH in biofilms is thus key to understanding their biochemistry and offers potential routes to detect and treat latent infections. This review covers the causes of biofilm pH changes and simulations, general findings of metabolite-dependent pH gradients, methods for measuring pH in biofilms, effects of pH on biofilms, and pH-targeted antimicrobial-based approaches.
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Affiliation(s)
| | | | | | - Cedric Taylor
- Department of Biological Sciences, Clemson University, Clemson, SC, United States
| | - Jeffrey N. Anker
- Department of Chemistry, Clemson University, Clemson, SC, United States
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8
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Wang Z, Pan T, Tian Y, Liao J. A near-infrared probe for the real-time detection of lysosomal pH in living cells under "wash free" conditions. J Mater Chem B 2022; 10:7045-7051. [PMID: 36044015 DOI: 10.1039/d2tb01441f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lysosomal pH is an important indicator for the physiological state of eukaryotic cells. The real-time detection of intracellular lysosomal pH is critical for understanding and studying many physiological and pathological processes of cells. Herein, we designed and synthesized a series of novel pH sensors, namely W1, W2 and W3. By comparing the spectroscopic properties of the three molecules and their ability to target lysosomes in living cells, a specific probe W1 was selected for the quantitative analysis of lysosomal pH changes in live cells. W1 shows a fast, sensitive and highly selective red fluorescence response to an acidic pH value. The pKa value of W1 is 5.84, and the fluorescence intensity ratios of I743/I680 under acidic conditions show a good linear relationship with the pH value. In addition, W1 shows a 100-fold difference in fluorescence from an extracellular environment to an intracellular environment, allowing it to be used as a "wash free" staining probe to visualize the pH change of lysosomes. W1 was further applied to detect the changes of lysosomal pH during apoptosis and mitophagy. Thus, W1 is expected to be a potentially useful tool for monitoring the changes of lysosomal pH in cell-related physiological or pathological states.
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Affiliation(s)
- Ziqiang Wang
- School of Medicine, Southern University of Science and Technology, No 1088 Xueyuan Blvd, Xili, Nanshan District, Shenzhen, Guangdong, 518055, China
| | - Tingting Pan
- Department of Pediatric Neurology, Shenzhen Children's Hospital, 7019 Yitian Road, Shenzhen, 518038, China.
| | - Yanqing Tian
- Department of Materials Science and Engineering, Southern University of Science and Technology, No 1088 Xueyuan Blvd, Xili, Nanshan District, Shenzhen, Guangdong, 518055, China.
| | - Jianxiang Liao
- Department of Pediatric Neurology, Shenzhen Children's Hospital, 7019 Yitian Road, Shenzhen, 518038, China.
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9
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Romero AH, Cerecetto HE. High CT-Fluorophore Featuring a Basic Moiety into D-A Chain as a p Ka Probe. J Org Chem 2022; 87:7618-7634. [PMID: 35671375 DOI: 10.1021/acs.joc.1c03104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The determination of acidity represents a significant challenge within fluorometry, and no effective strategy has been developed successfully yet. It is attributed to the fact that acidity tends to be enhanced upon excitation, giving, in general, an overestimation of the ionization constant, pKa. Herein, we developed a strategy for pKa estimation of Brønsted acids in solution through fluorometry by using a convenient pKa probe, N1-aryl-7-methoxy-2-(trifluoromethyl)benzo[b][1,8]naphthyridin-4(1H)-one. It allowed us to obtain a linear log KSV versus pKa correlation derived from the selective quenching response of the probe by an interaction with different Brønsted acids. The key points of N1-aryl-7-methoxy-2-(trifluoromethyl)benzo[b][1,8]naphthyridin-4(1H)-one as a pKa probe were (i) the location of a weak basic moiety in the donor-acceptor chain of the fluorophore, which favors a selective quenching of the intramolecular charge-transfer process according to the acidity of acid, and (ii) the high CT character upon excitation that promotes higher quenching magnitudes and favors a wider pKa range (19.5pKa) for the log KSV versus pKa correlation. Other key principles were to delimit the study to pure proton transfer and nonfluorescent acids, which allowed restricting the quenching response to a process dependent mainly on the acid-base equilibrium. All these findings open a new perspective as a proof of concept to design effective fluorescent pKa probes.
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Affiliation(s)
- Angel H Romero
- Grupo de Química Orgánica Medicinal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400 Montevideo, Uruguay
| | - Hugo E Cerecetto
- Grupo de Química Orgánica Medicinal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400 Montevideo, Uruguay.,Área de Radiofarmacia, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Mataojo 2055, 11400 Montevideo, Uruguay
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10
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He D, Zhang L, Sun Y. Meso-substituented pyronine: colorful emission and versatile platform for the rational design of fluorescent probes. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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11
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Tariq A, Garnier U, Ghasemi R, Pierre Lefevre J, Mongin C, Brosseau A, Frédéric Audibert J, Pansu R, Dauzères A, Leray I. Perylene based PET Fluorescent molecular probes for pH monitoring. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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12
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Small nanoparticles bring big prospect: The synthesis, modification, photoluminescence and sensing applications of carbon dots. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.085] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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4D-printed pH sensing claw. Anal Chim Acta 2022; 1204:339733. [DOI: 10.1016/j.aca.2022.339733] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 02/10/2022] [Accepted: 03/14/2022] [Indexed: 01/30/2023]
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14
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Modeling the Dichromatic Behavior of Bromophenol Blue to Enhance the Analytical Performance of pH Colorimetric Sensor Arrays. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10020087] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The dichromatism of Bromophenol blue (BPB) was investigated by varying its concentration in the absence and presence of surfactant. A model of the indicator behavior was carried out, justifying the experimental shapes of the sigmoidal profiles of the hue (H) coordinate. The model applied to the solution was compared with the performance of colorimetric sensor arrays (CSAs) with increasing BPB concentrations. The H shape and the prediction errors of the CSAs were very similar to those predicted. The experimental results enable the changing of the slope of the calibration profiles, at will, by varying only the BPB concentration.
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15
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Liang K, Kong J, Xing X, Wang X, Shi W, Lu C. The Sensitive Optical pH Sensor Based on the Complex of Nanosheet and Carbon Dots. ChemistrySelect 2022. [DOI: 10.1002/slct.202104266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kaixiang Liang
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology 15 Beisanhuan East Road, P. Box 98 100029 Beijing P. R. China
| | - Jian Kong
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology 15 Beisanhuan East Road, P. Box 98 100029 Beijing P. R. China
| | - Xia Xing
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology 15 Beisanhuan East Road, P. Box 98 100029 Beijing P. R. China
| | - Xinrui Wang
- Key Laboratory of Cosmetic China National Light Industry Beijing Technology and Business University Beijing 100048 China
| | - Wenying Shi
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology 15 Beisanhuan East Road, P. Box 98 100029 Beijing P. R. China
| | - Chao Lu
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology 15 Beisanhuan East Road, P. Box 98 100029 Beijing P. R. China
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16
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Razavi B, Roghani-Mamaqani H, Salami-Kalajahi M. Development of highly sensitive metal-ion chemosensor and key-lock anticounterfeiting technology based on oxazolidine. Sci Rep 2022; 12:1079. [PMID: 35058519 PMCID: PMC8776736 DOI: 10.1038/s41598-022-05098-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 12/30/2021] [Indexed: 11/09/2022] Open
Abstract
Optical chemosensors and ionochromic cellulosic papers based on oxazolidine chromophores were developed for selective photosensing of metal ions and information encryption as security tags, respectively. The oxazolidine molecules have been displayed highly intense fluorescent emission and coloration characteristics that are usable in sensing and anticounterfeiting applications. Obtained results indicated that oxazolidine molecules can be used for selective detection of pb2+ (0.01 M), and photosensing of Fe3+, Co2+ and Ag+ metal ion solutions by colorimetric and fluorometric mechanisms with higher intensity and sensitivity. Also, oxazolidine derivatives were coated on cellulosic papers via layer-by-layer method to prepare ionochromic papers. Prepared ionochromic papers were used for printing and handwriting of optical security tags by using of metal ion solutions as a new class of anticounterfeiting inks with dual-mode fluorometric and colorimetric securities. The ionochromic cellulosic papers can be used for photodetection of metal ions in a fast and facile manner that presence of metal ions is detectable by naked eyes. Also, key-lock anticounterfeiting technology based on ionochromic papers and metal ion solution as ink is the most significant strategy for encryption of information to optical tags with higher security.
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17
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Electrospun Nanofiber Membranes from 1,8-Naphthimide-Based Polymer/Poly(vinyl alcohol) for pH Fluorescence Sensing. Molecules 2022; 27:molecules27020520. [PMID: 35056831 PMCID: PMC8778194 DOI: 10.3390/molecules27020520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/11/2022] [Accepted: 01/13/2022] [Indexed: 12/03/2022] Open
Abstract
Accurately and sensitively sensing and monitoring the pH in the environment is a key fundamental issue for human health. Nanomaterial and nanotechnology combined with fluorescent materials can be emerged as excellent possible methods to develop high-performance sensing membranes and help monitor pH. Herein, a series of fluorescent nanofiber membranes (NFMs) containing poly-1,8-naphthimide derivative-3-[dimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]azaniumyl]propane-1-sulfonate (PNI-SBMA) are fabricated by electrospinning the solution of PNI-SBMA blended with poly(vinyl alcohol) (PVA). The surfactant-like functionalities in side chains of PNI-SBMA endow the NFMs with outstanding hydrophilicity, and the naphthimide derivatives are sensitive to pH by photoinduced electron transfer effect, which contribute to highly efficient pH fluorescence sensing applications of NFMs. Specifically, the PNI-SBMA/PVA NFM with a ratio of 1:9 (NFM2) shows high sensitivity and good cyclability to pH. This work demonstrates an effective strategy to realize a fluorescent sensor NFM that has a fast and sensitive response to pH, which will benefit its application of pH sensor monitoring in the water treatment process.
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18
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Magnaghi LR, Alberti G, Pazzi BM, Zanoni C, Biesuz R. A green-PAD array combined with chemometrics for pH measurements. NEW J CHEM 2022. [DOI: 10.1039/d2nj03675d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This work presents the development of a green paper-based analytical device (Green-PAD) array for pH detection.
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Affiliation(s)
- Lisa R. Magnaghi
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
- Unità di Ricerca di Pavia, INSTM, Via G. Giusti 9, 50121 Firenze, Italy
| | - Giancarla Alberti
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Bianca M. Pazzi
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Camilla Zanoni
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Raffaela Biesuz
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
- Unità di Ricerca di Pavia, INSTM, Via G. Giusti 9, 50121 Firenze, Italy
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19
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Grabarz AM, Ośmiałowski B. Benchmarking Density Functional Approximations for Excited-State Properties of Fluorescent Dyes. Molecules 2021; 26:7434. [PMID: 34946515 PMCID: PMC8703901 DOI: 10.3390/molecules26247434] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/28/2021] [Accepted: 12/04/2021] [Indexed: 12/05/2022] Open
Abstract
This study presents an extensive analysis of the predictive power of time-dependent density functional theory in determining the excited-state properties of two groups of important fluorescent dyes, difluoroboranes and hydroxyphenylimidazo[1,2-a]pyridine derivatives. To ensure statistically meaningful results, the data set is comprised of 85 molecules manifesting diverse photophysical properties. The vertical excitation energies and dipole moments (in the electronic ground and excited states) of the aforementioned dyes were determined using the RI-CC2 method (reference) and with 18 density functional approximations (DFA). The set encompasses DFAs with varying amounts of exact exchange energy (EEX): from 0% (e.g., SVWN, BLYP), through a medium (e.g., TPSSh, B3LYP), up to a major contribution of EEX (e.g., BMK, MN15). It also includes range-separated hybrids (CAM-B3LYP, LC-BLYP). Similar error profiles of vertical energy were obtained for both dye groups, although the errors related to hydroxyphenylimidazopiridines are significantly larger. Overall, functionals including 40-55% of EEX (SOGGA11-X, BMK, M06-2X) ensure satisfactory agreement with the reference vertical excitation energies obtained using the RI-CC2 method; however, MN15 significantly outperforms them, providing a mean absolute error of merely 0.04 eV together with a very high correlation coefficient (R2 = 0.98). Within the investigated set of functionals, there is no single functional that would equally accurately determine ground- and excited-state dipole moments of difluoroboranes and hydroxyphenylimidazopiridine derivatives. Depending on the chosen set of dyes, the most accurate μGS predictions were delivered by MN15 incorporating a major EEX contribution (difluoroboranes) and by PBE0 containing a minor EEX fraction (hydroxyphenylimidazopiridines). Reverse trends are observed for μES, i.e., for difluoroboranes the best results were obtained with functionals including a minor fraction of EEX, specifically PBE0, while in the case of hydroxyphenylimidazopiridines, much more accurate predictions were provided by functionals incorporating a major EEX contribution (BMK, MN15).
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Affiliation(s)
- Anna M. Grabarz
- Faculty of Chemistry, Wrocław University of Science and Technology, Wyb. Wyspiańskiego 27, PL-50370 Wrocław, Poland
| | - Borys Ośmiałowski
- Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, PL-87100 Toruń, Poland;
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20
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Gharpure SJ, Hande PE, Pandey SK, Samala G. TMSOTf-Mediated Formal [4 + 2] Cycloaddition-Retro-aza-Michael Cascade of Vinylogous Carbamates for the Synthesis of Highly Fluorescent Pyridocarbazoles. J Org Chem 2021; 86:16652-16665. [PMID: 34766500 DOI: 10.1021/acs.joc.1c01927] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Trimethylsilyl trifluoromethanesulfonate mediated dimerization reaction of vinylogous carbamates of carbazoles gave highly fluorescent pyridocarbazoles through a Povarov-type formal [4 + 2] cycloaddition-retro-aza-Michael cascade. The developed strategy was used to access indolo pyridocarbazole and quinolizinocarbazolone in an expeditious manner. Various coupling reactions were successfully performed on synthesized pyridocarbazoles to study the effect of electronics of substitution on photophysical properties. Synthesized carbazoles possess excellent photophysical properties with high quantum yields (ΦF). Fluorescent carbazole dicarboxylic acid showed potential as a pH probe to give a linear response to pH over a very wide range (7.0-3.0) reflecting high efficiency.
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Affiliation(s)
- Santosh J Gharpure
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Pankaj E Hande
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Surya K Pandey
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ganesh Samala
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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21
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Huang PJ, Kumarasamy K, Devendhiran T, Chen YC, Dong TY, Lin MC. BODIPY-based hydroxypyridyl derivative as a highly Ni2+-selective fluorescent chemosensor. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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Pham TC, Nguyen VN, Choi Y, Lee S, Yoon J. Recent Strategies to Develop Innovative Photosensitizers for Enhanced Photodynamic Therapy. Chem Rev 2021; 121:13454-13619. [PMID: 34582186 DOI: 10.1021/acs.chemrev.1c00381] [Citation(s) in RCA: 526] [Impact Index Per Article: 175.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review presents a robust strategy to design photosensitizers (PSs) for various species. Photodynamic therapy (PDT) is a photochemical-based treatment approach that involves the use of light combined with a light-activated chemical, referred to as a PS. Attractively, PDT is one of the alternatives to conventional cancer treatment due to its noninvasive nature, high cure rates, and low side effects. PSs play an important factor in photoinduced reactive oxygen species (ROS) generation. Although the concept of photosensitizer-based photodynamic therapy has been widely adopted for clinical trials and bioimaging, until now, to our surprise, there has been no relevant review article on rational designs of organic PSs for PDT. Furthermore, most of published review articles in PDT focused on nanomaterials and nanotechnology based on traditional PSs. Therefore, this review aimed at reporting recent strategies to develop innovative organic photosensitizers for enhanced photodynamic therapy, with each example described in detail instead of providing only a general overview, as is typically done in previous reviews of PDT, to provide intuitive, vivid, and specific insights to the readers.
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Affiliation(s)
- Thanh Chung Pham
- Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, Korea
| | - Van-Nghia Nguyen
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea
| | - Yeonghwan Choi
- Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, Korea
| | - Songyi Lee
- Department of Chemistry, Pukyong National University, Busan 48513, Korea.,Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, Korea
| | - Juyoung Yoon
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea
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23
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Lee R, Erstling JA, Hinckley JA, Chapman DV, Wiesner UB. Addressing Particle Compositional Heterogeneities in Super-Resolution-Enhanced Live-Cell Ratiometric pH Sensing with Ultrasmall Fluorescent Core-Shell Aluminosilicate Nanoparticles. ADVANCED FUNCTIONAL MATERIALS 2021; 31:2106144. [PMID: 34899116 PMCID: PMC8659865 DOI: 10.1002/adfm.202106144] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Indexed: 06/13/2023]
Abstract
The interrogation of metabolic parameters like pH in live-cell experiments using optical super-resolution microscopy (SRM) remains challenging. This is due to a paucity of appropriate metabolic probes enabling live-cell SRM-based sensing. Here we introduce ultrasmall fluorescent core-shell aluminosilicate nanoparticle sensors (FAM-ATTO647N aC' dots) that covalently encapsulate a reference dye (ATTO647N) in the core and a pH-sensing moiety (FAM) in the shell. Only the reference dye exhibits optical blinking enabling live-cell stochastic optical reconstruction microscopy (STORM). Using data from cells incubated for 60 minutes with FAM-ATTO647N aC' dots, pixelated information from total internal reflection fluorescence (TIRF) microscopy-based ratiometric sensing can be combined with that from STORM-based localizations via the blinking reference dye in order to enhance the resolution of ratiometric pH sensor maps beyond the optical diffraction limit. A nearest-neighbor interpolation methodology is developed to quantitatively address particle compositional heterogeneity as determined by separate single-particle fluorescence imaging methods. When combined with STORM-based estimates of the number of particles per vesicle, vesicle size, and vesicular motion as a whole, this analysis provides detailed live-cell spatial and functional information, paving the way to a comprehensive mapping and understanding of the spatiotemporal evolution of nanoparticle processing by cells important, e.g. for applications in nanomedicine.
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Affiliation(s)
- Rachel Lee
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Jacob A Erstling
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States; Department of Biomedical Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Joshua A Hinckley
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States; Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Dana V Chapman
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Ulrich B Wiesner
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
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24
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Hande PE, Shelke YG, Datta A, Gharpure SJ. Recent Advances in Small Molecule-Based Intracellular pH Probes. Chembiochem 2021; 23:e202100448. [PMID: 34695287 DOI: 10.1002/cbic.202100448] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/23/2021] [Indexed: 01/04/2023]
Abstract
Intracellular pH plays an important role in many biological and pathological processes. Small-molecule based pH probes are found to be the most effective for pH sensing because of ease of preparation, high sensitivity, and quick response. They have many advantages such as small perturbation to the functions of the target, functional adaptability, cellular component-specific localization, etc. The present review highlights the flurry of recent activity in the development of such probes. The probes are categorized based on the type of fluorophore used like quinoline, coumarin, BODIPY, rhodamine, indolium, naphthalimide, etc., and their analytical performance is discussed.
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Affiliation(s)
- Pankaj E Hande
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Yogesh G Shelke
- Department of Chemistry, BioScience Research Collaborative, Rice University, 6100 Main Street, Houston, TX 77005, USA
| | - Anindya Datta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Santosh J Gharpure
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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25
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Bodipy Based Fluorescent Materials in Cellulose Matrices: Synthesis, Spectral Properties and Vapochromic Fluorescent Recognition of Alcohols and Acetone. J Fluoresc 2021; 31:1627-1635. [PMID: 34370179 DOI: 10.1007/s10895-021-02792-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 07/26/2021] [Indexed: 10/20/2022]
Abstract
This paper highlights advances made using the 4-bora-3a,4a-diaza-s-indacene (BODIPY) as a fluorophore in design and application of fluorescent sensors for microenvironment polarity. Sections of the paper cover broad analysis of a range of fluorescent indicators immobilized in ethyl- and methyl cellulose matrices. The present study demonstrates that BODIPY-based fluorescent materials could be successfully utilized for ratiometric detection of ethanol and acetone in gas phase. The achieved limit of detection value equals 0.02 mg/ml for acetone and 0.08 mg/ml for ethanol, whereas obtained sensoric materials are reusable without regeneration required.
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26
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Xu C, Shao T, Shao S, Jin G. High activity, high selectivity and high biocompatibility BODIPY-pyrimidine derivatives for fluorescence target recognition and evaluation of inhibitory activity. Bioorg Chem 2021; 114:105121. [PMID: 34214754 DOI: 10.1016/j.bioorg.2021.105121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/13/2021] [Accepted: 06/20/2021] [Indexed: 12/14/2022]
Abstract
BODIPY-Pyrimidine (BP) is a highly selective, highly active, and highly biocompatible fluorescent drug, which is characterized by its own activity combined with a fluorophore. The combination of pyrimidines with good biological activity and fluorophores to obtain new compounds with both anti-tumor activity and fluorescent targeting probe functions is the focus of this research. In terms of biological activity, in vitro cytotoxicity of the compounds on four human cancer cells (HepG2, HeLa, A-459, and HCT-116) and the human normal cell line L-02 was studied. BP-4 has good antiproliferative activity, and its IC50 values are 19.12 ± 2.29, 13.47 ± 3.80, 18.59 ± 7.42, 14.57 ± 2.44 and 92.48 ± 6.03 μM, respectively. Good biocompatibility with tumor cells can be observed in cell imaging. The anti-tumor mechanism of the compound was further studied by flow cytometry. After BP-2, BP-3 and BP-4 treated HeLa cells, the percentage of apoptotic cells was 19.07%, 22.09% and 27.3%, respectively. The cell cycle study found that, compared with the positive control 5-FU (48.05%), the compounds BP-2, BP-3 and BP-4 all increased the proportion of HeLa cells in the G1 phase, reaching 57.65%, 55.46% and 53.58%, respectively. In vivo bioimaging results show that all three compounds can be targeted and accurately expressed in tumor tissues. In addition, molecular docking analyzes the possible interaction between the compound and the active site of thymidylate synthase.
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Affiliation(s)
- Chi Xu
- Digestive Disease Center, Shanghai East Hospital, Tongji University, Shanghai 200120, China
| | - Tingyu Shao
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, China
| | - Shihe Shao
- Digestive Disease Center, Shanghai East Hospital, Tongji University, Shanghai 200120, China.
| | - Guofan Jin
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, China.
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27
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Sensitive pH Monitoring Using a Polyaniline-Functionalized Fiber Optic-Surface Plasmon Resonance Detector. SENSORS 2021; 21:s21124218. [PMID: 34205475 PMCID: PMC8235001 DOI: 10.3390/s21124218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/17/2021] [Accepted: 06/17/2021] [Indexed: 11/21/2022]
Abstract
In this work, we report results on the fabrication and characterization of a surface plasmon resonance (SPR) pH sensor using platinum (Pt) and polyaniline (PANI) layers successively coated over an unclad core of an optical fiber (FO). The plasmonic thin Pt layer was deposited using a magnetron sputtering technique, while the pH-sensitive PANI layer was synthesized using an electroless polymerization method. Moreover, the formation of PANI film was confirmed by X-ray photoelectron spectroscopy (XPS) technique and its surface morphology was investigated using scanning electron microscopy (SEM). It was found that the PANI/Pt-coated FO-SPR pH sensor exhibits a fast and linear response in either acid or alkali solutions (pH operational range: 1 to 14). The proposed FO-SPR sensor could be used for biomedical applications, environmental monitoring or any remote, real-time on-site measurements.
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28
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Noviana E, Ozer T, Carrell CS, Link JS, McMahon C, Jang I, Henry CS. Microfluidic Paper-Based Analytical Devices: From Design to Applications. Chem Rev 2021; 121:11835-11885. [DOI: 10.1021/acs.chemrev.0c01335] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Eka Noviana
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, Indonesia 55281
| | - Tugba Ozer
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey 34220
| | - Cody S. Carrell
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Jeremy S. Link
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Catherine McMahon
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Ilhoon Jang
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
- Institute of Nano Science and Technology, Hanyang University, Seoul, South Korea 04763
| | - Charles S. Henry
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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29
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Band-pass filter-assisted ratiometric fluorescent nanoprobe composed of N-(2-aminoethyl-1,8-naphthalimide)-functionalized gold nanoclusters for the determination of alkaline phosphatase using digital image analysis. Mikrochim Acta 2021; 188:218. [PMID: 34075479 DOI: 10.1007/s00604-021-04870-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 05/18/2021] [Indexed: 10/21/2022]
Abstract
A smartphone-based dual-wavelength digital imaging platform containing red (539-695 nm) and blue (389-511 nm) band-pass filters was developed for point-of-care (POC) testing of alkaline phosphatase (ALP) activity. The platform was based on dual-emitting fluorescent nanohybrids (AuNC@NAN), the ratiometric probe, which had a fluorescence "on-off-on-off" response. The probe comprised red-emitting gold nanoclusters (AuNCs) acting as the signal report units and blue-emitting N-(2-aminoethyl-1,8-naphthalimide) (NAN) acting as an internal reference. The different responses of the ratiometric probes resulted in a continuous color-multiplexing change from pink-red to dark-purple upon exposure to ALP. The dual-wavelength digital imaging platform was employed to acquire images of AuNC or NAN fluorescence signals without the influence of background light. Unlike the classical one-time digital imaging mode, the accurate red (R) and blue (B) channel values of the generated images can help to directly judge or eliminate the disturbance from unavoidable interfering factors. The R/B values were successfully employed for determining the ALP activity at a range 2.0 to 35.0 mU·mL-1 with the detection limit of 1.04 mU·mL-1. Such sensing imaging platform is also successful in determining ALP activity in human serum with 94.9-105% recoveries and relative standard deviation in the range 4.2-5.6%. A novel dual-wavelength smartphone-based digital imaging platform was proposed for simultaneous readout of the reporting and internal reference signals from dual-emitting ratiometric fluorescence probes, which allowed us to the accurate, reliable, and highly sensitive assay of ALP activity in complex samples.
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30
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Tikum AF, Lim W, Fortibui MM, Lee S, Park S, Kim J. Palladium Probe Consisting of Naphthalimide and Ethylenediamine for Selective Turn-On Sensing of CO and Cell Imaging. Inorg Chem 2021; 60:7108-7114. [PMID: 33904727 DOI: 10.1021/acs.inorgchem.1c00091] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An assay to detect carbon monoxide (CO), one of the gaseous signaling molecules, has been prepared using a new palladium complex probe. The ethylenediamine group linked to the naphthalimide fluorophore coordinates to Pd(II) which intramolecularly quenches the emission. Upon treatment with CO, the absorbance of the turn-on fluorescent sensor changes due to the formation of a complex between Pd(II) and CO at room temperature in a phosphate buffer. As the concentration of CO increases, the probe peak emission intensity at 527 nm gradually increases. Other analyte controls, such as K+, Mg2+, Al3+, Zn2+, Cr3+, Hg2+, Fe3+, alanine, glycine, leucine, lysine, serine, threonine, tyrosine, F-, Cl-, Br-, NO, NO2-, NO3-, HCO3-, CH3COO-, H2O2, •OH, and tBuOO•, exhibit no significant effect on emission intensity. The response time of the probe to CO was quite fast because of the relatively weak coordination of Pd(II) to the pendent ethylenediamine group. The Pd probe is capable of detecting CO in aqueous buffer as well as in living cells with high selectivity and stability, providing a potential real-time indicator for studying CO-involved reactions in biological systems.
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Affiliation(s)
- Anjong Florence Tikum
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
| | - Wanyoung Lim
- Department of Global Biomedical Engineering, Sungkyunkwan University, Suwon 16419, Korea
| | - Maxine Mambo Fortibui
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
| | - Sohyun Lee
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
| | - Sungsu Park
- Department of Global Biomedical Engineering, Sungkyunkwan University, Suwon 16419, Korea.,School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Korea
| | - Jinheung Kim
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
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31
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Li Y, Wang Y, Chen S, Wang Z, Feng L. Inkjet-printed paper-based sensor array for highly accurate pH sensing. Anal Chim Acta 2021; 1154:338275. [PMID: 33736797 DOI: 10.1016/j.aca.2021.338275] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 01/06/2021] [Accepted: 01/29/2021] [Indexed: 10/22/2022]
Abstract
In this work, a novel paper-based colorimetric sensor array was developed by inkjet printing method with polyethylene glycol (PEG) immobilization system. Eight commercially available pH indicators with sequential pH segments in nearly whole pH range were dissolved in nine mixed inks to fabricate the 3 × 3 sensor array on mixed cellulose ester (MCE) paper. Based on homogeneous deposition of inkjet printing, the eight pH indicators were sufficiently immobilized on MCE paper with the assistance of PEG-400, which guaranteed pH detection of aqueous samples on sensor array without hydrophobic barriers. Besides, the indicating range of each indicator obtained an extension through the addition of PEG 400, which remarkably enriched the distinguishable capability of sensor array and benefited for high resolution of pH detection. As such, the as-fabricated paper-based sensor array exhibited an excellent discrimination ability in pH range of 1.00-13.60 with a high resolution of 0.20 pH unit, not only for standard pH buffer solutions but for real aqueous samples.
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Affiliation(s)
- Yanqi Li
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yu Wang
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China
| | - Shuqin Chen
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Zhenming Wang
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Liang Feng
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China.
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Abstract
AbstractThe object of the present study are BODIPY molecules obtained previously by Piskorz et al. (Dyes Pigm. 178:108322, 2020) for their antimicrobial activity. Structural analysis of the BODIPY dimers is presented in context of the aggregation influence on the photophysical properties. The thorough investigation of the nature of intermolecular interaction in the representative BODIPY dimers is provided together with the decomposition of the interaction energy into the components of well-defined origin according to SAPT procedure. For the model BODIPY systems the careful examination of the interaction nature for the dimer structure based on experimental crystal study as well as fully optimized is given. The tendencies observed in the model dimers are further on investigated for two pairs of BODIPY systems designed for biomedical application. The analyzed molecules are shown to maximize the mutual interaction by the optimization of the stacking dispersion contacts between the aromatic rings of the molecules, therefore producing stable dimers. The estimation of SAPT0 interaction energy components confirms the dominating dispersion character arising from mutual BODIPY core contacts. The influence of the dimerization process on the photophysical properties of the systems studied theoretically depends to the high extend on the dimerization mode and is significant for parallel and antiparallel dispersion-governed dimers.
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33
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Climent E, Hecht M, Rurack K. Loading and Release of Charged and Neutral Fluorescent Dyes into and from Mesoporous Materials: A Key Role for Sensing Applications. MICROMACHINES 2021; 12:mi12030249. [PMID: 33671037 PMCID: PMC7997199 DOI: 10.3390/mi12030249] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 12/12/2022]
Abstract
The aim of this study is to determine the efficiency of loading and release of several zwitterionic, neutral, anionic and cationic dyes into/from mesoporous nanoparticles to find the optimum loading and release conditions for their application in detection protocols. The loading is carried out for MCM-41 type silica supports suspended in phosphate-buffered saline (PBS) buffer (pH 7.4) or in acetonitrile, involving the dyes (rhodamine B chloride, rhodamine 101 chloride, rhodamine 101 perchlorate, rhodamine 101 inner salt, meso-(4-hydroxyphenyl)-boron–dipyrromethene (BODIPY), sulforhodamine B sodium salt and fluorescein 27). As a general trend, rhodamine-based dyes are loaded with higher efficiency, when compared with BODIPY and fluorescein dyes. Between the rhodamine-based dyes, their charge and the solvent in which the loading process is carried out play important roles for the amount of cargo that can be loaded into the materials. The delivery experiments carried out in PBS buffer at pH 7.4 reveal for all the materials that anionic dyes are more efficiently released compared to their neutral or cationic counterparts. The overall best performance is achieved with the negatively charged sulforhodamine B dye in acetonitrile. This material also shows a high delivery degree in PBS buffer.
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Affiliation(s)
- Estela Climent
- Bundesanstalt für Materialforschung und Prüfung (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany; (M.H.); (K.R.)
- Correspondence:
| | - Mandy Hecht
- Bundesanstalt für Materialforschung und Prüfung (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany; (M.H.); (K.R.)
- CodeCheck GmbH, Gneisenaustraße 115, 10961 Berlin, Germany
| | - Knut Rurack
- Bundesanstalt für Materialforschung und Prüfung (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany; (M.H.); (K.R.)
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Abdzaid TA, Taher HJ. No-core fiber interferometry pH sensor based on a polyvinyl alcohol/polyacrylic acid and silica/polyvinyl alcohol/polyacrylic acid hydrogel coating. APPLIED OPTICS 2021; 60:1587-1594. [PMID: 33690493 DOI: 10.1364/ao.415977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
In this paper, we present an investigation on the sensing performance of a pH sensor based on a modal interferometer formed by a simple NO-core fiber interferometer (NCFI) that operates in transmission mode. The fundamental configuration of this sensor encompasses a single-mode-no-core-single-mode fiber (SMF-NCF-SMF "SNCS") segment chain. The chemical etching method has been used with hydrofluoric (HF) acid to prepare diverse NCF diameters. This was proposed to expand the evanescent fields and enhance sensor sensitivity. Then, the two diverse segments of etched NCF were cladded with polymeric composite fabricated by polyvinyl alcohol/polyacrylic acid (PVA/PAA) hydrogel and pure silica nanoparticles embedded in polyvinyl alcohol/polyacrylic acid (SiO2@PVA/PAA) hydrogel, respectively, for more sensing enhancement. Our results reveal that the PAA/PVA coating is a candidate coating material for acidic sensing, while SiO2@PVA/PAA is more appropriate for the base sensing, in which these coating materials show enhancement in the sensitivity above the NCF structure before an uncoated sensor due to greater enhancement of the evanescent field affected by the coating layer. The experimental results demonstrate a high average sensitivity of 3.42 nm/pH unit for the 11 w.t.% PVA/PAA coated sensor in the pH range from 1 to 7 and 3.2 nm/pH unit in the pH range from 8 to 14. The sensor also displays high repeatability and stability and low cross-sensitivity to temperature. The simple fabrication and high sensitivity of this sensor may prompt many potential applications in the fields of biology and chemistry.
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Abstract
Although its first definition dates back to more than a century ago, pH and its measurement are still studied for improving the performance of current sensors in everyday analysis. The gold standard is the glass electrode, but its intrinsic fragility and need of frequent calibration are pushing the research field towards alternative sensitive devices and materials. In this review, we describe the most recent optical, electrochemical, and transistor-based sensors to provide an overview on the status of the scientific efforts towards pH sensing.
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Andresen E, Radunz S, Resch-Genger U. Novel PET-pperated rosamine pH-sensor dyes with substitution pattern-tunable p Ka values and temperature sensitivity. NEW J CHEM 2021. [DOI: 10.1039/d1nj02505h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We present the synthesis and characterization of a family of regioisomerically pure pH-sensitive rosamine fluorophores consisting of xanthene fluorophore cores and differently substituted phenol moieties.
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Affiliation(s)
- Elina Andresen
- Federal Institute for Materials Research and Testing (BAM)
- Division Biophotonics
- D-12489 Berlin
- Germany
- Humboldt-Universität zu Berlin
| | - Sebastian Radunz
- Federal Institute for Materials Research and Testing (BAM)
- Division Biophotonics
- D-12489 Berlin
- Germany
| | - Ute Resch-Genger
- Federal Institute for Materials Research and Testing (BAM)
- Division Biophotonics
- D-12489 Berlin
- Germany
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Abstract
Optical sensors are always fascinating for chemists due to their selectivity, sensitivity, robustness and cost-effective nature.
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Affiliation(s)
- Hafiz Muhammad Junaid
- Institute of Chemistry
- University of the Punjab
- Quaid-e-Azam Campus
- Lahore 54590
- Pakistan
| | - Amber Rehana Solangi
- National Centre of Excellence in Analytical Chemistry
- University of Sindh
- Jamshoro
- Pakistan
| | - Madeeha Batool
- Institute of Chemistry
- University of the Punjab
- Quaid-e-Azam Campus
- Lahore 54590
- Pakistan
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Rodrigues RO, Sousa PC, Gaspar J, Bañobre-López M, Lima R, Minas G. Organ-on-a-Chip: A Preclinical Microfluidic Platform for the Progress of Nanomedicine. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2003517. [PMID: 33236819 DOI: 10.1002/smll.202003517] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/13/2020] [Indexed: 06/11/2023]
Abstract
Despite the progress achieved in nanomedicine during the last decade, the translation of new nanotechnology-based therapeutic systems into clinical applications has been slow, especially due to the lack of robust preclinical tissue culture platforms able to mimic the in vivo conditions found in the human body and to predict the performance and biotoxicity of the developed nanomaterials. Organ-on-a-chip (OoC) platforms are novel microfluidic tools that mimic complex human organ functions at the microscale level. These integrated microfluidic networks, with 3D tissue engineered models, have been shown high potential to reduce the discrepancies between the results derived from preclinical and clinical trials. However, there are many challenges that still need to be addressed, such as the integration of biosensor modules for long-time monitoring of different physicochemical and biochemical parameters. In this review, recent advances on OoC platforms, particularly on the preclinical validation of nanomaterials designed for cancer, as well as the current challenges and possible future directions for an end-use perspective are discussed.
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Affiliation(s)
- Raquel O Rodrigues
- Center for MicroElectromechanical Systems (CMEMS-UMinho), University of Minho, Campus de Azurém, Guimarães, 4800-058, Portugal
- Microfabrication and Exploratory Nanotechnology, INL-International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga, Braga, 4715-330, Portugal
| | - Patrícia C Sousa
- Microfabrication and Exploratory Nanotechnology, INL-International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga, Braga, 4715-330, Portugal
| | - João Gaspar
- Microfabrication and Exploratory Nanotechnology, INL-International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga, Braga, 4715-330, Portugal
| | - Manuel Bañobre-López
- Advanced (magnetic) Theranostic Nanostructures Lab, Nanomedicine Unit, INL-International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga, Braga, 4715-330, Portugal
| | - Rui Lima
- Transport Phenomena Research Center (CEFT), Faculdade de Engenharia da Universidade do Porto (FEUP), R. Dr. Roberto Frias, Porto, 4200-465, Portugal
- Mechanical Engineering and Resource Sustainability Center (MEtRICs), Mechanical Engineering Department, University of Minho, Campus de Azurém, Guimarães, 4800-058, Portugal
| | - Graça Minas
- Center for MicroElectromechanical Systems (CMEMS-UMinho), University of Minho, Campus de Azurém, Guimarães, 4800-058, Portugal
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Steinegger A, Wolfbeis OS, Borisov SM. Optical Sensing and Imaging of pH Values: Spectroscopies, Materials, and Applications. Chem Rev 2020; 120:12357-12489. [PMID: 33147405 PMCID: PMC7705895 DOI: 10.1021/acs.chemrev.0c00451] [Citation(s) in RCA: 174] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Indexed: 12/13/2022]
Abstract
This is the first comprehensive review on methods and materials for use in optical sensing of pH values and on applications of such sensors. The Review starts with an introduction that contains subsections on the definition of the pH value, a brief look back on optical methods for sensing of pH, on the effects of ionic strength on pH values and pKa values, on the selectivity, sensitivity, precision, dynamic ranges, and temperature dependence of such sensors. Commonly used optical sensing schemes are covered in a next main chapter, with subsections on methods based on absorptiometry, reflectometry, luminescence, refractive index, surface plasmon resonance, photonic crystals, turbidity, mechanical displacement, interferometry, and solvatochromism. This is followed by sections on absorptiometric and luminescent molecular probes for use pH in sensors. Further large sections cover polymeric hosts and supports, and methods for immobilization of indicator dyes. Further and more specific sections summarize the state of the art in materials with dual functionality (indicator and host), nanomaterials, sensors based on upconversion and 2-photon absorption, multiparameter sensors, imaging, and sensors for extreme pH values. A chapter on the many sensing formats has subsections on planar, fiber optic, evanescent wave, refractive index, surface plasmon resonance and holography based sensor designs, and on distributed sensing. Another section summarizes selected applications in areas, such as medicine, biology, oceanography, bioprocess monitoring, corrosion studies, on the use of pH sensors as transducers in biosensors and chemical sensors, and their integration into flow-injection analyzers, microfluidic devices, and lab-on-a-chip systems. An extra section is devoted to current challenges, with subsections on challenges of general nature and those of specific nature. A concluding section gives an outlook on potential future trends and perspectives.
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Affiliation(s)
- Andreas Steinegger
- Institute
of Analytical Chemistry and Food Chemistry, Graz University of Technology, Stremayrgasse 9, A-8010 Graz, Austria
| | - Otto S. Wolfbeis
- Institute
of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, D-93040 Regensburg, Germany
| | - Sergey M. Borisov
- Institute
of Analytical Chemistry and Food Chemistry, Graz University of Technology, Stremayrgasse 9, A-8010 Graz, Austria
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Pastore A, Badocco D, Pastore P. Reversible and high accuracy pH colorimetric sensor array based on a single acid-base indicator working in a wide pH interval. Talanta 2020; 219:121251. [PMID: 32887142 DOI: 10.1016/j.talanta.2020.121251] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/01/2020] [Accepted: 06/03/2020] [Indexed: 11/19/2022]
Abstract
A pH colorimetric sensor array (CSA) with fast response time (<1 min) using only one acid-base indicator, Bromothymol Blue (BB), was prepared and characterized by modulating the amount, C, of the surfactant Hexadecyltrimethylammonium p-toluenesulfonate between 0 and 0.3725 gCTApTs/gprecursor with a constant amount of the OrMoSil precursors. The effect of the C increase is a continuous acidic shift of the calibration position, i.e. a huge variation of the pKa value of BB in the pH range 5.80-13.50. The precision error decreased with increasing C from 0.096 pH units (lower C values) to 0.023 pH units (larger C values). This result led to the development of a model to determine the number of spots with suitable C values required for having a similar value of precision in the entire working interval of the CSA. By selecting only 4 spots the precision error is < 0.100 pH units in the pH range 5.80-13.50. With 256 spots (diameter of each spot ≈ 3 mm), the model predicted an error almost constant (≈0.010) in the entire pH range.
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Affiliation(s)
- Andrea Pastore
- Department of Chemical Sciences, University of Padua, Via Marzolo 1, 35131, Padua, Italy
| | - Denis Badocco
- Department of Chemical Sciences, University of Padua, Via Marzolo 1, 35131, Padua, Italy
| | - Paolo Pastore
- Department of Chemical Sciences, University of Padua, Via Marzolo 1, 35131, Padua, Italy.
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Haldar U, Chaudhury SS, Sharma R, Ruidas B, Patra SG, Mukhopadhyay CD, Lee HI. A fluorimetric water-soluble polymeric pH chemosensor for extremely acidic conditions: Live-cell and bacterial imaging application. SENSORS AND ACTUATORS B: CHEMICAL 2020; 320:128379. [DOI: 10.1016/j.snb.2020.128379] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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42
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Wang JX, Xing ZY, Tian ZN, Wu DQ, Xiang YY, Li JL. A dual-functional probe for sensing pH change and ratiometric detection of Cu 2. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 235:118318. [PMID: 32272428 DOI: 10.1016/j.saa.2020.118318] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/27/2020] [Accepted: 03/29/2020] [Indexed: 06/11/2023]
Abstract
A series of benzothiazole-based compounds were synthesized and characterized. Among them, probe Z showed significant dual-functional performance which was capable of sensing pH change and Cu2+. Probe Z displayed fluorescent turn-on under alkaline conditions due to deprotonation of the hydroxyl group along with the obviously color change from colorless to mint green. Interestingly, it further achieved in ratiometric detection of Cu2+ through absorbance or fluorescence signals in strong alkaline condition. The limit of detection was calculated correspondingly as 0.37 μM and 1.35 μM, respectively. Especially, the combination of the XNOR and INHIBIT logic gates could be used to confirm that one medium was in neutrality or alkalinity condition. Moreover, Z was successfully used in real water samples and test paper for fast identification of Cu2+, respectively.
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Affiliation(s)
- Jiang-Xu Wang
- College of Life Science, Northeast Agricultural University, Harbin 150030, PR China
| | - Zhi-Yong Xing
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, PR China.
| | - Zhen-Nan Tian
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, PR China
| | - Ding-Qi Wu
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, PR China
| | - Yuan-Yuan Xiang
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, PR China
| | - Jin-Long Li
- School of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China.
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43
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Zhang F, Dong W, Ma Y, Jiang T, Liu B, Li X, Shao Y, Wu J. Fluorescent pH probes for alkaline pH range based on perylene tetra-(alkoxycarbonyl) derivatives. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.04.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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44
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The effect of protonation on the excited state dynamics of pyrimidine chromophores. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112398] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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45
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Radunz S, Kraus W, Bischoff FA, Emmerling F, Tschiche HR, Resch-Genger U. Temperature- and Structure-Dependent Optical Properties and Photophysics of BODIPY Dyes. J Phys Chem A 2020; 124:1787-1797. [PMID: 32039600 DOI: 10.1021/acs.jpca.9b11859] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We report on the temperature- and structural-dependent optical properties and photophysics of a set of boron dipyrromethene (BODIPY) dyes with different substitution patterns of their meso-aryl subunit. Single-crystal X-ray diffraction analysis of the compounds enabled a classification of the dyes into a sterically hindered and a unhindered group. The steric hindrance refers to a blocked rotational motion of the aryl subunit around the bond connecting this moiety to the meso-position of the BODIPY core. The energy barriers related to this rotation were simulated by DFT calculations. As follows from the relatively low rotational barrier calculated to about 17 kcal/mol, a free rotation is only possible for sterically unhindered compounds. Rotational barriers of more than 40 kcal/mol determined for the sterically hindered compounds suggest an effective freezing of the rotational motion in these molecules. With the aid of temperature-dependent spectroscopic measurements, we could show that the ability to rotate directly affects the optical properties of our set of BODIPY dyes. This accounts for the strong temperature dependence of the fluorescence of the sterically unhindered compounds which show a drastic decrease in fluorescence quantum yield and a significant shortening in fluorescence lifetime upon heating. The optical properties of the sterically hindered compounds, however, are barely affected by temperature. Our results suggest a nonradiative deactivation of the first excited singlet state of the sterically unhindered compounds caused by a conical intersection of the potential energy surfaces of the ground and first excited state which is accessible by rotation of the meso-subunit. This is in good agreement with previously reported deactivation mechanisms. In addition, our results suggest the presence of a second nonradiative depopulation pathway of the first excited singlet state which is particularly relevant for the sterically hindered compounds.
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Affiliation(s)
- Sebastian Radunz
- Department 1 - Analytical Chemistry; Reference Materials, Federal Institute for Materials Research and Testing (BAM), Richard-Willstaetter-Str. 11, 12489 Berlin, Germany
| | - Werner Kraus
- Department 1 - Analytical Chemistry; Reference Materials, Federal Institute for Materials Research and Testing (BAM), Richard-Willstaetter-Str. 11, 12489 Berlin, Germany
| | - Florian A Bischoff
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Franziska Emmerling
- Department 1 - Analytical Chemistry; Reference Materials, Federal Institute for Materials Research and Testing (BAM), Richard-Willstaetter-Str. 11, 12489 Berlin, Germany.,Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Harald Rune Tschiche
- Department 7 - Chemicals and Product Safety, German Federal Institute for Risk Assessment (BfR), 10589 Berlin, Germany
| | - Ute Resch-Genger
- Department 1 - Analytical Chemistry; Reference Materials, Federal Institute for Materials Research and Testing (BAM), Richard-Willstaetter-Str. 11, 12489 Berlin, Germany
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46
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Radunz S, Wedepohl S, Röhr M, Calderón M, Tschiche HR, Resch-Genger U. pH-Activatable Singlet Oxygen-Generating Boron-dipyrromethenes (BODIPYs) for Photodynamic Therapy and Bioimaging. J Med Chem 2020; 63:1699-1708. [DOI: 10.1021/acs.jmedchem.9b01873] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sebastian Radunz
- Division Biophotonics, Federal Institute for Materials Research and Testing (BAM), Richard-Willstaetter-Str. 11, 12489 Berlin, Germany
| | - Stefanie Wedepohl
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Mathilde Röhr
- Division Biophotonics, Federal Institute for Materials Research and Testing (BAM), Richard-Willstaetter-Str. 11, 12489 Berlin, Germany
| | - Marcelo Calderón
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
- POLYMAT and Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
- Basque Foundation for Science, Ikerbasque, 48013 Bilbao, Spain
| | - Harald Rune Tschiche
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Str. 8-10, 10589 Berlin, Germany
| | - Ute Resch-Genger
- Division Biophotonics, Federal Institute for Materials Research and Testing (BAM), Richard-Willstaetter-Str. 11, 12489 Berlin, Germany
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47
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Fujita H, Dou J, Matsumoto N, Wu Z, Lindsey JS. Enzymatically triggered chromogenic cross-linking agents under physiological conditions. NEW J CHEM 2020. [DOI: 10.1039/c9nj04126e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Oxidative dimerization of an indoxyl moiety, released by glycosidase action in aqueous solution, yields an indigoid dye in formats that enable bioconjugation and molecular cross-linking.
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Affiliation(s)
- Hikaru Fujita
- Department of Chemistry
- North Carolina State University
- Raleigh
- USA
| | - Jinghuai Dou
- Department of Chemistry
- North Carolina State University
- Raleigh
- USA
| | | | - Zhiyuan Wu
- Department of Chemistry
- North Carolina State University
- Raleigh
- USA
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48
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Fan J, Zhang S, Li F, Yang Y, Du M. Recent advances in cellulose-based membranes for their sensing applications. CELLULOSE (LONDON, ENGLAND) 2020; 27:9157-9179. [PMID: 32934443 PMCID: PMC7483080 DOI: 10.1007/s10570-020-03445-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 09/07/2020] [Indexed: 05/13/2023]
Abstract
ABSTRACT In recent years, sensing applications have played a very important role in various fields. As a novel natural material, cellulose-based membranes with many merits can be served as all kinds of sensors. This review summarizes the recent progress of cellulose membranes as sensors, mainly focusing on their preparation processes and sensing properties. In addition, the opportunities and challenges of cellulose membrane-based sensors are also prospected. This review provides some references for the design of cellulose membrane materials for sensing applications in the future.
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Affiliation(s)
- Jiang Fan
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, National Demonstration Center for Experimental Light Chemistry Engineering Education, Key Laboratory of Paper Based Functional Materials of China National Light Industry, Shaanxi University of Science and Technology, Xi’an, 710021 People’s Republic of China
| | - Sufeng Zhang
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, National Demonstration Center for Experimental Light Chemistry Engineering Education, Key Laboratory of Paper Based Functional Materials of China National Light Industry, Shaanxi University of Science and Technology, Xi’an, 710021 People’s Republic of China
| | - Fei Li
- The Second Kindergarten, Economic and Technological Development Zone, Xi’an, 710021 People’s Republic of China
| | - Yonglin Yang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi’an, 710021 People’s Republic of China
| | - Min Du
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, National Demonstration Center for Experimental Light Chemistry Engineering Education, Key Laboratory of Paper Based Functional Materials of China National Light Industry, Shaanxi University of Science and Technology, Xi’an, 710021 People’s Republic of China
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49
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Costa E, Climent E, Gawlitza K, Wan W, Weller MG, Rurack K. Optimization of analytical assay performance of antibody-gated indicator-releasing mesoporous silica particles. J Mater Chem B 2020; 8:4950-4961. [DOI: 10.1039/d0tb00371a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
An in-depth study of the chemical tuning modes of antibody-gated indicator delivery (gAID) systems revealed the importance of size matching, localisation of grafting and loading sequence for obtaining high-performance small-molecule sensor materials.
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Affiliation(s)
- Elena Costa
- Bundesanstalt für Materialforschung und prüfung (BAM)
- D-12489 Berlin
- Germany
| | - Estela Climent
- Bundesanstalt für Materialforschung und prüfung (BAM)
- D-12489 Berlin
- Germany
| | - Kornelia Gawlitza
- Bundesanstalt für Materialforschung und prüfung (BAM)
- D-12489 Berlin
- Germany
| | - Wei Wan
- Bundesanstalt für Materialforschung und prüfung (BAM)
- D-12489 Berlin
- Germany
| | - Michael G. Weller
- Bundesanstalt für Materialforschung und prüfung (BAM)
- D-12489 Berlin
- Germany
| | - Knut Rurack
- Bundesanstalt für Materialforschung und prüfung (BAM)
- D-12489 Berlin
- Germany
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50
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Affiliation(s)
- Benedetta Maria Squeo
- Istituto per lo Studio delle Macromolecole (ISMAC), Consiglio Nazionale delle Ricerche, Milano, Italy
| | - Mariacecilia Pasini
- Istituto per lo Studio delle Macromolecole (ISMAC), Consiglio Nazionale delle Ricerche, Milano, Italy
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