Results 21 to 30 of about 213,849 (296)

Fluorescence study of 5-nitroisatin Schiff base immobilized on SBA-15 for sensing Fe3+

Open Chemistry, 2019
N’-(5-nitro-2-oxoindolin-3-ylidene) thiophene-2-carbohydrazide (NH) was successfully synthesized as a ligand, then grafted onto the surface of mesoporous silica SBA-15 via an aminopropyl bridge.
Fahmi Muhammad Riza Ghulam, Fajar Adroit T.N., Roslan Nurliana, Yuliati Leny, Fadlan Arif, Santoso Mardi, Lintang Hendrik O.   +6 more
doaj   +1 more source

Synthesis of Dioxo-Dioxane and Dioxo-Dioxepane Ethyl Oleate Derivatives as Bio-Lubricant Base Stocks

Indonesian Journal of Chemistry, 2020
In this study, two novel compounds, i.e., ethyl 8-(3-octyl-5,6-dioxo-1,4-dioxan-2-yl)octanoate and ethyl 8-(3-octyl-5,7-dioxo-1,4-dioxepan-2-yl)octanoate were prepared from oleic acid as the starting material.
Tutik Dwi Wahyuningsih, Yehezkiel Steven Kurniawan   +1 more
doaj   +1 more source

Sulfur-Containing Carotenoids from A Marine Coral Symbiont Erythrobacter flavus Strain KJ5

Marine Drugs, 2019
Erythrobacter flavus strain KJ5 (formerly called Erythrobacter sp. strain KJ5) is a yellowish marine bacterium that was isolated from a hard coral Acropora nasuta in the Karimunjawa Islands, Indonesia.
Edi Setiyono, Heriyanto, Delianis Pringgenies, Yuzo Shioi, Yu Kanesaki, Koichiro Awai, Tatas Hardo Panintingjati Brotosudarmo   +6 more
doaj   +1 more source

Real-time assessment of plant photosynthetic pigment contents with an artificial intelligence approach in a mobile application

Journal of Agricultural Engineering, 2020
The assessment of the photosynthetic pigment contents in plants is a common procedure in agricultural studies and can describe plant conditions, such as their nutritional status, response to environmental changes, senescence, disease status and so forth.
Kestrilia Rega Prilianti, Syaiful Anam, Tatas Hardo Panintingjati Brotosudarmo, Agus Suryanto   +3 more
doaj   +1 more source

Effects of salicylic acid on photosynthetic pigment content in Ocimum basilicum L. under UV-C radiation stress [PDF]

Journal of Cell and Molecular Research, 2009
Basil plants (Ocimum basilicum L.) were sprayed with salicylic acid (1mM) and exposed to Ultraviolet-C (UV-C) radiation (40 Wm-2) after emergence of six developed leaves.
Seyed Moosa Moosavi-Koohi, Jalil Khara, Reza Heidari   +2 more
doaj   +1 more source

Cobalt Oxide-Modified Titanium Dioxide Nanoparticle Photocatalyst for Degradation of 2,4-Dichlorophenoxyacetic Acid

Indonesian Journal of Chemistry, 2017
2,4-dichlorophenoxyacetic acid (2,4-D) has been recognized as a possibly carcinogenic compound to human, therefore, 2,4-D should be treated before it is discharged to the environment.
Leny Yuliati, Nur Azmina Roslan, Wai Ruu Siah, Hendrik Oktendy Lintang   +3 more
doaj   +1 more source

PROSPECT-PMP+: Simultaneous Retrievals of Chlorophyll a and b, Carotenoids and Anthocyanins in the Leaf Optical Properties Model

Sensors, 2022
The PROSPECT leaf optical radiative transfer models, including PROSPECT-MP, have addressed the contributions of multiple photosynthetic pigments (chlorophyll a and b, and carotenoids) to leaf optical properties, but photo-protective pigment (anthocyanins)
Yao Zhang, Xinkai Li, Chengjie Wang, Rongxu Zhang, Lisong Jin, Zongtai He, Shoupeng Tian, Kaihua Wu, Fumin Wang   +8 more
doaj   +1 more source

The Effect of Short-Term Heating on Photosynthetic Activity, Pigment Content, and Pro-/Antioxidant Balance of A. thaliana Phytochrome Mutants

Plants, 2023
The effects of heating (40 °C, 1 and 2 h) in dark and light conditions on the photosynthetic activity (photosynthesis rate and photosystem II activity), content of photosynthetic pigments, activity of antioxidant enzymes, content of thiobarbituric acid ...
Vladimir D. Kreslavski, Alexandra Y. Khudyakova, Anatoly A. Kosobryukhov, Tamara I. Balakhnina, Galina N. Shirshikova, Hesham F. Alharby, Suleyman I. Allakhverdiev   +6 more
doaj   +1 more source

Highly ordered mesoporous silica film nanocomposites containing gold nanoparticles for the catalytic reduction of 4-nitrophenol

Beilstein Journal of Nanotechnology, 2019
We report that transparent mesostructured silica/gold nanocomposite materials with an interpore distance of 4.1 nm, as-synthesized from a templated sol–gel synthesis method using discotic trinuclear gold(I) pyrazolate complex, were successfully utilized ...
Mohamad Azani Jalani, Leny Yuliati, Siew Ling Lee, Hendrik O. Lintang   +3 more
doaj   +1 more source

PHOTOSTABILITY OF BACTERIOCHLOROPHYLL a AND ITS DERIVATIVES AS POTENTIAL SENSITIZERS FOR PHOTODYNAMIC CANCER THERAPY: THE STUDY ON ACETONE-WATER AND METHANOL-WATER SOLVENTS

Indonesian Journal of Chemistry, 2011
The determination of photostability for Mg-BChl a, Zn-BPheo a and Cu-BPheo a irradiated with red light (≥ 630 nm, 870 lux) and equilibrated with air for 20 min in acetone-water and methanol-water solvents at various percentages of water has been done ...
Leenawaty Limantara, Heriyanto Heriyanto
doaj   +1 more source