Results 81 to 90 of about 445,251 (307)

Fiber-coupled erbium microlasers on a chip [PDF]

open access: yes, 2003
An erbium-doped, toroid-shaped microlaser fabricated on a silicon chip is described and characterized. Erbium-doped sol-gel films are applied to the surface of a silica toroidal microresonator to create the microcavity lasers.
Armani, D. K., Vahala, K. J., Yang, Lan
core   +1 more source

Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review

open access: yesAdvanced Healthcare Materials, EarlyView.
Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro   +8 more
wiley   +1 more source

Mesopore etching under supercritical conditions – A shortcut to hierarchically porous silica monoliths [PDF]

open access: yes, 2017
Hierarchically porous silica monoliths are obtained in the two-step Nakanishi process, where formation of a macro microporous silica gel is followed by widening micropores to mesopores through surface etching.
Bertino, Massimo F.   +7 more
core   +2 more sources

Functional Precision Oncology Approach Using Nanoliter Droplet Array for Drug Sensitivity Testing in Lung Cancer

open access: yesAdvanced Healthcare Materials, EarlyView.
A miniaturized drug sensitivity and resistance testing (DSRT) workflow based on the Droplet Microarray (DMA) platform enables functional drug testing using minimal patient‐derived tumor material. By screening nanoliter‐scale droplets containing as few as 300 cells, this approach generates reproducible and tumor‐specific drug response profiles ...
Maryam Salarian   +7 more
wiley   +1 more source

Enhancing fire resistance in wood with high-water retention silica gel: A promising flame-retardant solution [PDF]

open access: yesJournal of the Serbian Chemical Society
This study aims to evaluate water retention and flame-retardant properties of silica gel prepared using anionic polyacrylamide (HPAM), gluconate- delta-lactone (GDL) and aluminum citrate (AlCit).
Fei Zhongbin   +4 more
doaj   +1 more source

SERS Detection of Graphene Oxide in Acid Catalyzed Sol-Gels [PDF]

open access: yes, 2017
Silica sol-gel and aerogel substrates were synthesized using a modified acid catalyzed hydrolysis of tetramethyl orthosilicate method that incorporated graphene oxide and silver nanoparticles into the matrix.
Atkinson, Elizabeth J.O.   +1 more
core   +1 more source

Adsorpsi Ion Sianida Dalam Larutan Menggunakan Adsorben Hibrida Aminopropil Silika Gel Dari Sekam Padi Terimpregnasi Aluminium (Adsorption of Cyanide Ions in Solution Using a Hybrid Adsorbent Aminopropyl Silica Gel From Rice Husks of Impregnated With) [PDF]

open access: yes, 2012
This research has made two kinds of adsorbents, namely hybrid aminopropil silica gel from rice husk that has been impregnated with aluminum (APSG-Al) and silica gel impregnated with aluminum (SG-Al) of rice husk silica gel as the material for the ...
Amaria, A. (Amaria)
core   +3 more sources

Mapping Nanoscale Protein‐Corona Kinetics of DoE‐Optimized Perfluorocarbon Encapsulated‐PLGA Nanoparticles by In Situ, Time‐Resolved Synchrotron SAXS

open access: yesAdvanced Healthcare Materials, EarlyView.
A two‐phase workflow (OFAT screening followed by central composite design) maps how processing variables tune PFCE‐PLGA nanoparticle size, dispersity, surface charge, loading, and 19F‐MRI signal. In situ, time‐resolved synchrotron SAXS tracks albumin‐corona growth on intact dispersions and reveals PFCE‐dependent adsorption pathways.
Joice Maria Joseph   +11 more
wiley   +1 more source

Preparation of Silica Modified with 2-Mercaptoimidazole and its SorptionProperties of Chromium(III)

open access: yesE-Journal of Chemistry, 2009
Modified silica gel was prepared to remove the heavy metal of chromium(III) from water sample. Silica gel was used as supporting material and the 2-mercaptoimidazole was immobilized onto surface silica so that the silica would have selective properties ...
Harry Budiman   +2 more
doaj   +1 more source

An experimental comparison of silica gel and quartz sand grains as sediment media for growing vegetation at the laboratory scale [PDF]

open access: yes, 2018
.: In this technical note we compare silica gel grains and quartz sand as sediment media for vegetation root growth in laboratory experiments for ecohydrology and ecohydraulics. Silica gel grains become quite transparent when saturated with water.
Burlando, Paolo   +4 more
core  

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