Halochromism of a Polythiophene Derivative Induced by Conformational Changes and Its Sensing Application of Carbon Dioxide

Yao, Zhiyi; Hu, Xianping; Huang, Binghuan; Zhang, Li; Liu, Lei; Zhao, Yuliang; Wu, Hai‐Chen

doi:10.1021/am401761n

Cited by 39 publications

(22 citation statements)

References 37 publications

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“…Fluorescent dyes often change fluorescenceemitting spectra and quantum yields based on solvent polarity (solvato-fluorochromism) and pH (halofluorochromism) [19]. Solvato-and halo-fluorochromic properties are determined by electronic mobility and conformation of fluorophores in the environment where the dyes are present [20,21]. Fluorochromism is generally troublesome for the development of biomarkers that must provide reliable, quantitative imaging results.…”

Section: Methods and Resultsmentioning

confidence: 99%

Polymer Nanoassemblies With solvato- and halo-fluorochromism for Drug Release Monitoring and Metastasis Imaging

2015

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Background: Theranostics, an emerging technique that combines therapeutic and diagnostic modalities for various diseases, holds promise to detect cancer in early stages, eradicate metastatic tumors and ultimately reduce cancer mortality. Methods & results:This study reports unique polymer nanoassemblies that increase fluorescence intensity upon addition of hydrophobic drugs and either increase or decrease fluorescence intensity in acidic environments, depending on nanoparticle core environment properties. Extensive spectroscopic analyses were performed to determine optimal excitation and emission wavelengths, which enabled real time measurement of drugs releasing from the nanoassemblies and ex vivo imaging of acidic liver metastatic tumors from mice. Conclusion: Polymer nanoassemblies with solvato-and halo-fluorochromic properties are promising platforms to develop novel theranostic tools for the detection and treatment of metastatic tumors.

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Section: Methods and Resultsmentioning

confidence: 99%

Polymer Nanoassemblies With solvato- and halo-fluorochromism for Drug Release Monitoring and Metastasis Imaging

2015

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“…159 At high pH, 178 had a random-coiled conformation with a yellow color. On the other hand, at low pH, the color of the solution changed to pink ( Figure 41).…”

Section: Sensors Based On Functional Materialsmentioning

confidence: 99%

Recent Progress on the Development of Chemosensors for Gases

et al. 2015

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Introduction 7944 2. Chemosensors Based on Fluorescent Molecules 7945 2.1. Sensors for Environment Exhaust Gases 7945 2.1.1. Sensors for CO 2 7945 2.1.2. Sensors for SO 2 7949 2.1.3. Sensors for O 3 7951 2.2. Sensors for Biological Signaling Gases 7952 2.2.1. Sensors for NO 7952 2.2.2. Sensors for CO 7957 2.2.3. Sensors for H 2 S 7958 2.2.4. Sensors for 1 O 2 7962 2.3. Sensors for Highly Toxic Chemical-Warfare Agents 7963 2.3.1. Sensors for Nerve Agents 7963 2.3.2. Sensors for Sulfur Mustard 7967 3. Sensors Based on Functional Materials 7968 3.1. Sensors for Environment Gases 7968 3.1.1. Sensors for CO 2 7968 3.1.2. Sensors for O 2 7969 3.1.3. Sensors for VOCs 7971 3.1.4. Sensors for HCl 7972 3.1.5. Sensors for NH 3 7972 3.1.6. Sensors for Other Gases 7974 3.2. Sensors for High Dangerous Gases 7976 3.2.1. Sensors for Nerve Agents 7976 3.2.2. Sensors for Explosives 7976 4. Chemosensors Based on Metal Oxide Semiconductor 7978 4.1. Sensors for Environmental Gases 7978 4.1.1. Sensors for VOCs 7978 4.1.2. Sensors for CO 2 7985 4.1.3. Sensors for NO 2 7985 4.1.4. Sensors for SO 2 7987 4.1.5. Sensors for Other Gases 4.2. Sensors for Highly Toxic Gases 4.2.1. Sensors for CO 4.2.2. Sensors for H 2 S 4.2.3. Sensors for O 3 5. Conclusions and Future Perspectives Author Information

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“…1a ). We had examined the halochromismic behaviour of this molecule 37 and also employed it for the detection of protamine. 38 At high pH (8.0–12.0), PT exhibits an absorption maximum at 407 nm, indicative of a random-coiled conformation of the polymer backbone.…”

Section: Resultsmentioning

confidence: 99%

Revealing different aggregational states of a conjugated polymer in solution by a nanopore sensor

et al. 2016

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Halochromism of a Polythiophene Derivative Induced by Conformational Changes and Its Sensing Application of Carbon Dioxide

Cited by 39 publications

References 37 publications

Polymer Nanoassemblies With solvato- and halo-fluorochromism for Drug Release Monitoring and Metastasis Imaging

Polymer Nanoassemblies With solvato- and halo-fluorochromism for Drug Release Monitoring and Metastasis Imaging

Recent Progress on the Development of Chemosensors for Gases

Revealing different aggregational states of a conjugated polymer in solution by a nanopore sensor

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