Results 51 to 60 of about 52,556 (305)

Green Synthesis of Highly Luminescent Carbon Quantum Dots from Lemon Juice

Journal of Nanotechnology, 2019
Highly luminescent carbon dots (C-dots) were synthesized by the one-pot simple hydrothermal method directly from lemon juice using different temperatures, time, aging of precursors, and diluted solvents to control the luminescence of C‐dots. The obtained
Bui Thi Hoan, Phuong Dinh Tam, Vuong-Hung Pham   +2 more
doaj   +1 more source

Tests of stellar model atmospheres by optical interferometry: VLTI/VINCI limb-darkening measurements of the M4 giant psi phe

, 2003
We present K-band interferometric measurements of the limb-darkened intensity profile of the M4 giant star psi Phoenicis obtained with VLTI/VINCI. High-precision squared visibility amplitudes in the second lobe of the visibility function were obtained ...
Aufdenberg, Aufdenberg, Ballester, Baschek, Batten, Bessell, Bessell, Bessell, Bordé, Burnashev, Burns, Cardelli, Claret, Claret, Cohen, Coudé du Foresto, Coudé du Foresto, Coudé du Foresto, Crampton, Davis, di Benedetto, Dyck, Eggen, Evans, Farge, Feast, Girardi, Glindemann, Hajian, Hanbury Brown, Haniff, Hauschildt, Hauschildt, Hofmann, J. P. Aufdenberg, Jankov, Johnson, Johnson, Johnson, Jones, Jones, Kervella, Kurucz, Leinert, Lunt, M. Wittkowski, Moro, P. Kervella, Percheron, Perrin, Petrov, Plez, Quirrenbach, Richichi, Schlegel, Scholz, Scholz, Scholz, Scholz, Ségransan, Tango, Wittkowski, Wittkowski   +62 more
core   +2 more sources

Autonomous Hydrogel Actuators Programmed by Endogenous Biochemical Logic for Dual‐Stage Morphing and Drug Release

Advanced Materials, EarlyView.
A 3D‐printed BSA–PEGDA bilayer actuator performs biochemical logic, bending autonomously in acid and releasing its drug payload only when both acid and pepsin are present. This dual‐stage, enzyme‐gated mechanism enables autonomous catch‐and‐release motion and controlled gastric drug delivery, representing a programmable soft material powered by ...
Yuchen Liu, Harischandra Potthuri, Alejandro Sosnik, Luai R. Khoury   +3 more
wiley   +1 more source

Molecular Signatures in the Near Infrared Dayside Spectrum of HD 189733b [PDF]

, 2008
We have measured the dayside spectrum of HD 189733b between 1.5 and 2.5 microns using the NICMOS instrument on the Hubble Space Telescope. The emergent spectrum contains significant modulation, which we attribute to the presence of molecular bands seen ...
Bouwman, J., Chen, Pin, Deming, D., Deroo, P., Swain, M. R., Tinetti, G., Vasisht, G., Yung, Y.   +7 more
core   +2 more sources

Tunable Plasmonic Response of Silver Nanoparticles Entangled in Detonation Nanodiamond Network via Colloidal Self‐Assembly

Advanced Materials Interfaces, EarlyView.
Detonation nanodiamonds form a network that entangles silver nanoparticles into stable nanocomplexes. The structure can fine‐tune and enhance plasmonic absorption through nearfield electromagnetic interactions but prevents silver particle aggregation. The study shows how the arrangement and concentration of particles affect light absorption, offering a
Vendula Hrnčířová, Markéta Šlapal Bařinková, Muhammad Qamar, Kateřina Kolářová, Bohuslav Rezek   +4 more
wiley   +1 more source

Assessing variability of literature based methane indicator traits in a large dairy cow population

Biotechnologie, Agronomie, Société et Environnement, 2015
Description of the subject. Dairy production is identified as a major source of methane (CH4) emissions. Selective breeding represents one method for mitigating CH4 emissions but practical and cheap ways to measure this trait are not currently available.
Kandel, PB., Gengler, N., Soyeurt, H.
doaj  

Microorganism adhesion using silicon dioxide: An experimental study

Heliyon, 2020
In this study, spectrophotometry was used to measure changes in the absorbance properties of yeast, Gram-positive, and Gram-negative bacteria after their attachment to silicon dioxide microparticles (silica).
Roberts Lozins, Tūrs Selga, Dzintars Ozoliņš   +2 more
doaj   +1 more source

Near‐Infrared‐Driven Metal–Organic Frameworks‐Based Nanorobots for Controlled Photothermal‐Chemical Therapy Synergistic Induction of Cancer Cell Death

Advanced Robotics Research, EarlyView.
To achieve efficient cancer cell death, a bowl‐shaped PDA@UiO‐66@DOX nanorobot drug‐delivery nanoplatform was developed. Near‐infrared irradiation not only drives the nanorobot to exhibit self‐thermophoretic motion and elevates temperature but also triggers Doxorubicin (DOX) release via hyperthermia, enhancing cancer cells uptake of DOX and thereby ...
Tong Lin, Jie Yang, Yongcheng Li, Yuepeng Cai, Xiaosong Zhou, Ting Chen, Renfeng Dong   +6 more
wiley   +1 more source

Cow milk coagulation: process description, variation factors and evaluation methodologies. A review

Biotechnologie, Agronomie, Société et Environnement, 2017
Introduction. For dairy producers who want to transform their milk, the ability of milk to coagulate is an important parameter. It makes it possible to transform milk into cheese.
Troch, T., Lefébure, E., Baeten, V., Colinet, F., Gengler, N., Sindic, M.   +5 more
doaj  

Green synthesis of silver nanoparticles using extract of Parkia speciosa Hassk pods assisted by microwave irradiation

Journal of Advanced Research, 2016
This paper reports an investigation of the microwave-assisted synthesis of silver nanoparticles (Ag NPs) using extract of stinky bean (Parkia speciosa Hassk) pods (BP).
Is Fatimah
doaj   +1 more source