Results 21 to 30 of about 631,178 (293)

Marking microelectrode penetrations with fluorescent dyes

Journal of Neuroscience Methods, 1996
Fluorescent dyes were used to mark and identify the tracks left by extracellular microelectrodes in neurophysiological experiments. Forty-two penetrations were made into the postcentral gyrus of 3 Macaque monkeys with electrodes coated with 1 of 5 fluorescent dyes (DiI, DiO, DiI-C5, PyPO, and Fast Blue). The electrodes were driven at rates ranging from
J J, DiCarlo, J W, Lane, S S, Hsiao, K O, Johnson   +3 more
openaire   +2 more sources

SEALING ABILITY OF MINERAL TRIOXIDE AGGREGATE, CALCIUM PHOSPHATE CEMENT, AND GLASS IONOMER CEMENT IN THE REPAIR OF FURCATION PERFORATIONS

Acta Medica, 2013
Objectives: The purpose of this study was to evaluate the in vitro sealing ability of three repair materials. Mineral trioxide aggregate (MTA; Group A), calcium phosphate cement (CPC; Group B), and light cured glass ionomer cement (GIC; Group C) when ...
Prabath Singh, Joseph Paul, Abdul Aziz Al-Khuraif, Sajith Vellappally, Hassan Suliman Halawany, Mohamed Hashim, Nimmi Biju Abraham, Vimal Jacob, Rooban Thavarajah   +8 more
doaj   +1 more source

Visualizing Penetration of Fluorescent Dye through Polymer Coatings

Macromolecular Rapid Communications, 2023
AbstractUnderstanding how small molecules penetrate and contaminate polymer films is of vital importance for developing protective coatings for a wide range of applications. To this end, rhodamine B fluorescent dye is visualized diffusing through polystyrene‐polydimethylsiloxane block copolymer (BCP) coatings using confocal microscopy. The intensity of
Krishnaroop Chaudhuri, Riddhiman Medhi, Zhenglin Zhang, Zhuoyun Cai, Christopher K. Ober, Jonathan T. Pham   +5 more
openaire   +2 more sources

Investigations of Dye-Sensitised Titania Solar Cell Electrode Using Confocal Laser Scanning Microscopy [PDF]

, 2003
We have characterised a dye-sensitised nanoporous nanocrystalline titania film used in prototype photoelectrochemical solar cell production. The film was sensitised with two types of ruthenium (II) based dyes for different times, between 0.5 and 24 ...
Tesfamichael, Tuquabo, Bostrom, Thor E., Will, Geoffrey D., Bell, John M.   +3 more
core   +1 more source

Effect of three different conditioning agents on cavosurface microleakage and bond strength of glass ionomer restorations – An in vitro study

Journal of Indian Society of Pedodontics and Preventive Dentistry, 2022
Aim: This study aimed to investigate the conditioning effects of phosphoric acid/5.25% sodium hypochlorite (NaOCl) mixture, 2% chlorhexidine (CHX) digluconate, and 10% polyacrylic acid on cavosurface microleakage and bond strength of glass ionomer (GI ...
Mustafa Khan, Harsimran Kaur, Rishika Choudhary, Ramakrishna Yeluri   +3 more
doaj   +1 more source

SPECTROPHOTOMETRIC STUDIES OF PENETRATION OF DYES [PDF]

Journal of General Physiology, 1930
Spectrophotometric measurements show that the non-medullated nerve of a lobster claw is capable of absorbing methylene blue, azure B, or acid fuchsin dissolved in sea water but this does not necessarily imply that the dyes penetrate into the interior of the nerve.
openaire   +2 more sources

Optical Properties and Aggregation of Phenothiazine-based Dye-Sensitisers for Solar Cells Applications: A Combined Experimental and Computational Investigation [PDF]

, 2013
Combining computational modeling and experimental optical analyses, we investigate two prototypical phenothiazine-based organic solar cells sensitizers with the aim to understand the individual effects of solvation and aggregation on the dyes optical ...
Agrawal, Saurabh, Marotta, Gabriele, Pastore, Mariachiara, De Angelis, Filippo, Chandrasekharam, Malapaka, Reddy, Marri Anil, Filippo De Angelis, Mariachiara Pastore, Saurabh Agrawal, Malapaka Chandrasekharam, Marri Anil Reddy, Gabriele Marotta   +11 more
core   +1 more source

Evaluation of Caries-Free Restorations Bonded with Various Adhesive Systems: In Vitro Study

International Journal of Dentistry, 2020
Purpose. Secondary caries originate from a leakage pathway where oral acids can penetrate faster and demineralize the tooth substrate deeper which can be visualized by dye penetration.
Morakot Piemjai, Pareewan Chantarawej, Nobuo Nakabayashi   +2 more
doaj   +1 more source

The effect of a light source with reduced irradiance on the marginal seal in class V cavities [PDF]

Stomatološki glasnik Srbije, 2008
Introduction: During composite polymerisation, material contraction occurs and leads to microgap formation. Various light sources are used in everyday dental practice for the polymerisation of composite restorations: conventional halogen, xenon, LED ...
Gajić Nataša, Kojić Željka, Đeri Aleksandra, Arbutina Radmila, Trnić Zorica   +4 more
doaj   +1 more source

Microleakage analysis of dental caries lesions sealed with flow resin and compared to microhybrid resin restorations in dentin

RGO: Revista Gaúcha de Odontologia, 2018
Objective: To evaluate the sealing of cavities of dentinal occlusal caries lesions, reproduced in vitro, with flow resin compared to cavity restorations presenting healthy dentin using microhybrid composite resin.
Amanda de Albuquerque VASCONCELOS, Juliana Tietbohl de Almeida REIS , Bianca Fiorentin MOURA, Daniela Cavalcante GIRÃO, José Carlos Pettorossi IMPARATO , Sérgio Luiz PINHEIRO   +5 more
doaj   +1 more source