نتایج جستجو برای: infrared spectrophotometer source

تعداد نتایج: 522348  

2014
A Nithya Deva Krupa Vimala Raghavan

Marine biofilms formed due to adhesion of bacteria and other microorganisms on submerged surfaces are generally considered to be a major form of microfouling. Subsequent attachment of larvae of higher organisms like barnacles, mussels, and so forth, on marine biofilms, causes macrofouling. Several approaches have been used to prevent micro- and macrofouling. Silver nanoparticles (AgNPs) are kno...

2014
Maha Ayat Samia Belhousse Luca Boarino Noureddine Gabouze Rabah Boukherroub Mohamed Kechouane

In this work, we report the fabrication of ordered silicon structures by chemical etching of silicon in vanadium oxide (V2O5)/hydrofluoric acid (HF) solution. The effects of the different etching parameters including the solution concentration, temperature, and the presence of metal catalyst film deposition (Pd) on the morphologies and reflective properties of the etched Si surfaces were studie...

Journal: :Journal of environmental sciences 2015
Palaniselvam Kuppusamy Solachuddin J A Ichwan Narasimha Reddy Parine Mashitah M Yusoff Gaanty Pragas Maniam Natanamurugaraj Govindan

In this present study, we reported broccoli (Brassica oleracea L.) as a potential candidate for the synthesis of gold and silver nanoparticles (NPs) in green chemistry method. The synthesized metal nanoparticles are evaluated their antimicrobial efficacy against different human pathogenic organisms. The physico-chemical properties of gold nanoparticles were analyzed using different analytical t...

Journal: :Journal of the Ceramic Society of Japan 1993

Journal: :Analytical chemistry 1996
C D Tran G H Gao

A novel light source for the near-infrared region which has the highest intensity and widest spectral bandwidth of all near-IR light sources has been developed. The system is based on a single-mode fiber (about 18 m long) doped with Er3+ ion. The doped ion produces amplified spontaneous emission (ASE) in the near-IR region (from 1500 to 1600 nm) when it is excited by a diode laser at 980 nm. Be...

Journal: :Pharmaceutical development and technology 1998
T B Gold R G Buice R A Lodder G A Digenis

The purpose of this research was to monitor the migration of formaldehyde from a polyethylene glycol (PEG) fill into the gelatin shell of a soft elastic gelatin capsule (SEGC) using near-infrared (NIR) spectrophotometry. SEGCs were filled with five solutions of aqueous formaldehyde in PEG (0, 0.05, 0.10, 0.20, and 0.40 v/v%), stored at ambient conditions for 48 hr, emptied, and scanned in NIR s...

Journal: :Journal of the Spectroscopical Society of Japan 1970

Journal: :Journal of Biomedical and Pharmaceutical Research 2019

Journal: :Journal of physics 2022

Abstract Strontium Titanate is a perovskite oxide with remarkable properties as photocatalyst. The synthesis of material Neodymium doping (Sr 0.97 Nd 0.03 TiO 3 ) has been completed by means the co-precipitation procedure. Samples were sintered at temperatures 900°C and 1000°C for 4 hours to investigate their properties. X-Ray Diffraction (XRD), Fourier-Transform Infrared spectroscopy (FTIR), U...

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