Photoelectrochemical signal chain based on quantum dots on gold—Sensitive to superoxide radicals in solution

Stoll, C.; Gehring, C.; Schubert, Kirsten; Zanella, Marco; Parak, Wolfgang J.; Lisdat, Fred

doi:10.1016/j.bios.2008.03.039

Cited by 60 publications

(41 citation statements)

References 37 publications

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“…A selectivity towards specific analytes could be introduced into this sensing system by functionalisation of the NPLs with biological molecules [48][49][50][51][52] or by the addition of shuttle molecules. 53,54…”

Section: Application Of Npl Cryoaerogel Photoelectrodes For Photoelecmentioning

confidence: 99%

Nanoplatelet cryoaerogels with potential application in photoelectrochemical sensing

Schlosser

Meyer

Lübkemann

et al. 2019

Phys. Chem. Chem. Phys.

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Section: Application Of Npl Cryoaerogel Photoelectrodes For Photoelecmentioning

confidence: 99%

Nanoplatelet cryoaerogels with potential application in photoelectrochemical sensing

Schlosser

Meyer

Lübkemann

et al. 2019

Phys. Chem. Chem. Phys.

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“…Redox-specific labelling of cells using QD-dopamine conjugates have been demonstrated in cells expressing human D2 dopamine receptors: upon ultraviolet irradiation, oxidation of dopamine was observed [123]. Recently anodic electrochemiluminescence of quantum dots [144] and photoelectro-chemical detection of superoxide radicals by quantum dots has been described [145]. Increased generation of nitric oxide during photolysis of water was increased when CdSe/ZnS quantum dots were present [146].…”

Section: Quantum Dots As Photosensitizers For Cancer Therapymentioning

confidence: 99%

Quantum dots and nanoparticles for photodynamic and radiation therapies of cancer

Juzenas

Chen

Sun

et al. 2008

Advanced Drug Delivery Reviews

541

348

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Semiconductor quantum dots and nanoparticles composed of metals, lipids or polymers have emerged with promising applications for early detection and therapy of cancer. Quantum dots with unique optical properties are commonly composed of cadmium contained semiconductors. Cadmium is potentially hazardous, and toxicity of such quantum dots to living cells, and humans, is not yet systematically investigated. Therefore, search for less toxic materials with similar targeting and optical properties is of further interest. Whereas, the investigation of luminescence nanoparticles as light sources for cancer therapy is very interesting. Despite advances in neurosurgery and radiotherapy the prognosis for patients with malignant gliomas has changed little for the last decades. Cancer treatment requires high accuracy in delivering ionizing radiation to reduce toxicity to surrounding tissues. Recently some research has been focused in developing photosensitizing quantum dots for production of radicals upon absorption of visible light. In spite of the fact that visible light is safe, this approach is suitable to treat only superficial tumours. Ionizing radiation (X-rays and gamma rays) penetrate much deeper thus offering a big advantage in treating patients with tumours in internal organs. Such concept of using quantum dots and nanoparticles to yield electrons and radicals in photodynamic and radiation therapies as well their combination is reviewed in this article.

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“…They also found that the photoelectrochemical signal of CdSe/ZnS quantum dots was sensitive to the presence of superoxide radicals. The sensor can linearly detect superoxide concentrations in the range of 0.25-1.3 μM [75] . Nanocrystalline CdS has been synthesized by Curri et al [76] using a microemulsive system and immobilized by self-assembling on a gold electrode combined with formaldehyde dehydrogenase (FDH), in order to prepare a biological-inorganic hybrid to perform catalytic oxidation of formaldehyde.…”

Section: Inorganic Semiconductor Materials-based Photoelectrochemicalmentioning

confidence: 99%

Progress in the studies of photoelectrochemical sensors

Wang

Chen

2009

Sci. China Ser. B-Chem.

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Photoelectrochemical sensor is a new kind of developing analytical device based on the photoelectrochemical properties of materials. Because of its remarkable sensitivity, inherent miniaturization, portability and easy integration, photoelectrochemical analysis is becoming a promising analytical technique. This review focuses on the basic principles, classification, characteristics, and research progress of photoelectrochemical sensors with 94 references. The prospect of the development of photoelectrochemical sensors is also evaluated and discussed.photoelectrochemistry, sensor, review

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Photoelectrochemical signal chain based on quantum dots on gold—Sensitive to superoxide radicals in solution

Cited by 60 publications

References 37 publications

Nanoplatelet cryoaerogels with potential application in photoelectrochemical sensing

Nanoplatelet cryoaerogels with potential application in photoelectrochemical sensing

Quantum dots and nanoparticles for photodynamic and radiation therapies of cancer

Progress in the studies of photoelectrochemical sensors

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