Abstract:
:Porous ZnS and ZnO nano-crystal films were fabricated via a three-step procedure. First, Zn(CH3 COO)2 /Silk Fibroin nanofiber mats were prepared by coaxial electrospinning. Second, Zn(CH3 COO)2 /Silk Fibroin mats were immersed in NaS solution to react with S2- to obtain ZnS/Silk Fibroin nanofiber mats. Finally, ZnO porous films were prepared by calcination of ZnS/Silk Fibroin composite mat at 600°C in air atmosphere. When ZnS/Silk Fibroin mats were calcinated in nitrogen, ZnS/Carbon composite mats were obtained accordingly. The resulting porous films were fully characterized. The ZnO porous films were the aggregation of ZnO nano-crystal with hexagonal wurtzite structure. The seize of ZnO was estimated in the range of 10-20 nm. Both of the ZnS and ZnO nano-crystal films exhibited high photocatalytic activities for the photodegradation of Methylene blue and Rhodamine B. It was also found that ZnO porous films are better than ZnS/Carbon nanofiber mats. In addition, photocatalysis of a real wastewater sample from a printing and dyeing company was conducted. The ZnO porous films exhibited excellent performance to treat the real samples. Moreover, the porous ZnO nano-crystal photocatalyst could easily be recycled without notable loss of catalysis ability.
journal_name
Photochem Photobioljournal_title
Photochemistry and photobiologyauthors
Wang H,Liang L,Cheng X,Luo Y,Sun Sdoi
10.1111/php.12836subject
Has Abstractpub_date
2018-01-01 00:00:00pages
17-26issue
1eissn
0031-8655issn
1751-1097journal_volume
94pub_type
杂志文章abstract::Polysulphone (PS) dosimetry has been a widely used technique for more than 30 years to quantify the erythemally effective UV dose received by anatomic sites (personal exposure). The calibration of PS dosimeters is an important issue as their spectral response is different from the erythemal action spectrum. It is perf...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.2011.01006.x
更新日期:2012-01-01 00:00:00
abstract::Neutral filter elution at pH 7.2 and 9.6 was used to measure the induction of DNA lesions in human P3 teratocarcinoma cells by monochromatic 254-, 270-, 313-, 334-, 365-, and 405-nm radiation and by 60 gamma rays. In this assay DNA double-strand breaks (dsb) increase the rate of elution of DNA from cell lysates on a f...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.1990.tb04194.x
更新日期:1990-08-01 00:00:00
abstract::Eumelanin (brown/black melanin) and pheomelanin (red/yellow melanin) in human hair can be quantified using chemical methods or approximated using spectrophotometric methods. Chemical methods consume greater resources, making them less attractive for epidemiological studies. This investigation sought to identify the sp...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.2007.00237.x
更新日期:2008-05-01 00:00:00
abstract::δ-Aminolevulinic acid (ALA)-induced porphyrin accumulation is widely used in the treatment of cancer, as photodynamic therapy. To clarify the mechanisms of the tumor-preferential accumulation of protoporphyrin, we examined the effect of the expression of heme-biosynthetic and -degradative enzymes on the ALA-induced ac...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.2011.00950.x
更新日期:2011-09-01 00:00:00
abstract::Proton magnetic resonance imaging (MRI) and histological methods were used to evaluate photodynamic therapy (PDT)-induced hemorrhagic necrosis in the murine M1 tumor within 72 h of treatment of male DBA/2 mice. The effects of three photosensitizing drugs were investigated: Photofrin (n = 4), Zn (II) phthalocyanine (n ...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.1997.tb03236.x
更新日期:1997-12-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/php.13245
更新日期:2020-05-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:
更新日期:1998-11-01 00:00:00
abstract::The energy and oscillator strength of electronic transitions of chlorophyll (Chl)-amino acid complexes were calculated by using molecular orbital methods. The energies varied widely with coordinated amino acids and the difference between the maximum and minimum energy was about 830 cm-1. This energy difference was com...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/0031-8655(2001)073<0245:aomoct>2.0.co;2
更新日期:2001-03-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.2011.00975.x
更新日期:2011-11-01 00:00:00
abstract::Microscopic fluorescence photometry incorporating a light-sensitive thermo-electrically cooled charge-coupled device (CCD) camera was employed to investigate the fluorescence distribution of 5-aminolevulinic acid (ALA)-induced porphyrins in 22 patients with a total number of 52 noduloulcerative basal cell carcinomas (...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.1995.tb09154.x
更新日期:1995-11-01 00:00:00
abstract::Herein, we present a comparative study about the photoinactivation of Staphylococcus aureus (Gram-positive model) and Escherichia coli (Gram-negative model) employing a neutral and a dicationic axially functionalized SiIV -phthalocyanine. Depending on the charge of the siloxane moiety (neutral monosaccharide or cation...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/php.12881
更新日期:2018-09-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/php.12206
更新日期:2014-03-01 00:00:00
abstract::The effect of pretreatment with vitamin E on cytotoxicity, DNA single strand breaks, and chromosomal aberrations as well as on mutation induced by ultraviolet-B light (UV-B) was investigated in Chinese hamster V-79 cells. Cellular pretreatment with non-toxic levels of 25 microM alpha-tocopherol succinate (vitamin E) f...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.1992.tb09598.x
更新日期:1992-07-01 00:00:00
abstract::Time-resolved singlet oxygen, O(2)(a(1)Delta(g)), phosphorescence experiments have been performed in single cells upon pulsed laser irradiation of a photosensitizer incorporated into the cell. Data recorded as a function of the partial pressure of ambient oxygen to which the cell is exposed reflect apparent values for...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.2008.00359.x
更新日期:2008-09-01 00:00:00
abstract::Solid-state NMR spectroscopy gives a powerful avenue for investigating G protein-coupled receptors and other integral membrane proteins in a native-like environment. This article reviews the use of solid-state (2)H NMR to study the retinal cofactor of rhodopsin in the dark state as well as the meta I and meta II photo...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章,评审
doi:10.1111/j.1751-1097.2008.00510.x
更新日期:2009-03-01 00:00:00
abstract::Reactive nitrogen species, produced during the process of inflammation induced by various factors including UV radiation, modify amino acids in crucial proteins. It is assumed that skin tissue is more likely to be modified, as it is located at the outer layer of a body that is exposed to UV radiation on a daily basis....
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/2006-07-24-RA-978
更新日期:2007-05-01 00:00:00
abstract::The photodynamic effect of hypericin on EMT6 mouse mammary carcinoma cells was investigated in vitro under aerobic and hypoxic conditions. Under aerobic conditions, hypericin-induced photocytotoxicity was dose dependent within a 1-50 microM range. Under hypoxic conditions, cells were resistant to hypericin-induced pho...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.1992.tb08531.x
更新日期:1992-06-01 00:00:00
abstract::The proteins induced by heat and other stressors, called heat shock proteins (HSP) or stress proteins, are considered to play a general role in protection from cellular injury. Exposure to UVA (320-400 nm) following application of 8-methoxypsoralen (8-MOP), termed PUVA is commonly used in the field of dermatology. In ...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.1993.tb04974.x
更新日期:1993-12-01 00:00:00
abstract::Vibrio fischeri strain Y1 emits yellow light in vivo due to the participation of a yellow fluorescent protein (YFP) in the luciferase reaction. In this study it was found that the organism also produces a protein (referred to as Y1-BFP) emitting strong blue fluorescence. Its molecular weight, about 25 kDa, is the same...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.1992.tb04239.x
更新日期:1992-02-01 00:00:00
abstract::As our understanding of the role of UV in causing skin cancer continues to expand, researchers and clinicians must continue to remain up to date on the various means by which UV exposure can be quantified. The purpose of this article was to review the current methods used to measure lifetime exposure to UV and to summ...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.2008.00367.x
更新日期:2008-11-01 00:00:00
abstract::Proteases like urokinase-type plasminogen activator (uPA) play an important role in tumor invasion. Cells derived from ultraviolet radiation (UVR)-induced corneal sarcomas of Monodelphis domestica produce relatively high levels of uPA compared to the untransformed keratocytes suggesting a mechanism for their invasiven...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/0031-8655(2001)073<0318:uaicfm>2.0.co;2
更新日期:2001-03-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.2007.00155.x
更新日期:2007-07-01 00:00:00
abstract::Elemental sulfur is a low-cost and abundant substance as one of the largest by-products of the oil industry which was widely used in many industrial activities. Cyclo-octasulfur (S8 ) is one of the sulfur allotropes that is a very stable substance in standard conditions. In this study, we report a low-cost and fast me...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/php.13301
更新日期:2020-11-01 00:00:00
abstract::A model of UV-induced DNA damage in oceanic bacterioplankton was developed and tested against previously published and novel measurements of cyclobutane pyrimidine dimers (CPD) in surface layers of the ocean. The model describes the effects of solar irradiance, wind-forced mixing of bacterioplankton and optical proper...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/0031-8655(2000)072<0062:dtdiba>2.0.co;2
更新日期:2000-07-01 00:00:00
abstract::Inflammatory stimuli result in the production of cutaneous eicosanoids, which are known to contribute to the process of tumor promotion. Cyclooxygenase (COX), the rate-limiting enzyme for the production of prostaglandins (PG) from arachidonic acid, exists in at least two isoforms, COX-1 and COX-2. COX-1 is constitutiv...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/0031-8655(2002)076<0073:ceimah>2.0.co;2
更新日期:2002-07-01 00:00:00
abstract::Cold-inducible RNA binding protein (CIRP) is a stress-inducible protein, which could be activated by various cellular stresses, such as hypothermia, hypoxia and UV irradiation. Our previous study indicated that UVB radiation (3 mJ cm-2 ) induces CIRP expression, which promotes keratinocytes growth, survival and eventu...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/php.12981
更新日期:2018-11-01 00:00:00
abstract::We have compared the cytotoxicity of daunomycin in vitro to highly differentiated normal epithelial cells (Fisher rat thyroid cells, FRTL-5) and to two neoplastic cell lines, a thyroid carcinoma (TK-6) and its lung metastasis (MPTK-6). Whereas the cell lines are equally sensitive to the drug in the dark, if irradiated...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.1993.tb09223.x
更新日期:1993-05-01 00:00:00
abstract::Irradiation with 365 nm light of Wi26VA4 SV40-transformed human fibroblasts cultured for 24 h in the presence of low density lipoproteins loaded with the anticancer porphyrin mixture Photofrin II resulted in a near complete inhibition of [14C]oleic acid incorporation into triacylglycerols, cholesteryl esters and phosp...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.1992.tb04209.x
更新日期:1992-01-01 00:00:00
abstract::Seafarers working on decks of vessels at low latitudes are exposed to extremely high solar UV radiation. Their risk of developing skin cancer may be enhanced. Solar erythemal UV irradiance and exposure were measured for the first time on merchant vessels going along typical international routes at low latitudes. The m...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/php.12144
更新日期:2013-11-01 00:00:00
abstract::Many viral infections reach clinical significance in winter, when it is cold, relative humidity is lowest and vitamin D production from solar ultraviolet-B irradiation is at its nadir. Several autoimmune diseases, such as multiple sclerosis, type 1 diabetes mellitus and asthma, are linked to viral infections. Vitamin ...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章,评审
doi:10.1111/j.1751-1097.2007.00266.x
更新日期:2008-03-01 00:00:00