Results 41 to 50 of about 66,025 (308)

Microneedles Mediated Delivery of Nanodiamonds for Quantum Sensing of Free Radicals in Skin Tissue

open access: yesAdvanced Materials Technologies, EarlyView.
Fluorescent nanodiamonds are nanoscale sensors capable of monitoring cellular stress responses. However, to function effectively, they must be delivered into cells or tissues. Here, we demonstrate their application in the skin by developing a dissolvable microneedle platform that dissolves after skin insertion, enabling the delivery of nanodiamonds ...
Siyu Fan   +10 more
wiley   +1 more source

Strong‐Magnetic Flexible Composites for Magnetically Responsive Soft Robots

open access: yesAdvanced Robotics Research, EarlyView.
This perspective provides an overview of the performance mechanisms, preparation methods, and applications of strong magnetic flexible composite materials in soft actuators (such as gripping, movement, and sensing), and further explores current opportunities and challenges.
Wenwen Li   +4 more
wiley   +1 more source

An update on the potential for male contraception : emerging options [PDF]

open access: yes, 2013
The human population continues to grow and is estimated to rise to 10.1 billion by the end of the century. Therefore, there is still an unmet need for safe and highly effective contraceptive options for both men and women.
Nimmo, Natalie   +5 more
core   +1 more source

Inhibitory Effect of TREK Channel Blockers on Sperm Viability and Motility of Korean Native Bull

open access: yesJournal of Animal Reproduction and Biotechnology, 2017
Antioxidants have been added to cryoprotectant or in vitro culture medium for sperm to reduce the detrimental damage, such as reactive oxygen species.
Dawon Kang, Eun-Jin Kim, Jaehee Han
doaj   +1 more source

Web- and Artificial Intelligence–Based Image Recognition For Sperm Motility Analysis: Verification Study

open access: yesJMIR Medical Informatics, 2020
BackgroundHuman sperm quality fluctuates over time. Therefore, it is crucial for couples preparing for natural pregnancy to monitor sperm motility.
Tsai, Vincent FS   +4 more
doaj   +1 more source

The RNA‐Binding Protein PARN Remodeled 3′ UTR Structure Defines Poly(A)‐Loading Sites to Mediate Immunoglobulin Homeostasis

open access: yesAdvanced Science, EarlyView.
ABSTRACT Class Switch Recombination (CSR) is essential for generating high‐affinity antibody isotypes from IgM during adaptive humoral responses. Despite well‐established roles for various transcription factors, whether CSR is subject to dedicated post‐transcriptional control represents a significant gap in knowledge.
Siyuan Sun   +19 more
wiley   +1 more source

Signaling mechanisms in mammalian sperm motility [PDF]

open access: yes, 2017
The goal of sperm is to fertilize the oocyte. To achieve that purpose, it must acquire motility in the epididymis and hyperactivated motility in the female reproductive tract. Motility is only achieved when the sperm presents a fully functional flagellum,
Vijayaraghavan, Srinivasan   +2 more
core   +1 more source

Sperm handling and management in the teleost model fish Japanese medaka (Oryzias latipes)

open access: yesScientific Reports
Japanese medaka (Oryzias latipes) has been used as a model organism in different research fields, including reproductive physiology. Sperm motility is the most important marker for male fertility in fish and, thus, reproduction success.
Amin Sayyari   +3 more
doaj   +1 more source

Analysis of the impact of cryopreservation and theophylline on motility of sperm

open access: yesMiddle East Fertility Society Journal, 2018
Objective: Sperm parameters, particularly motility, decrease during cryopreservation. Theophylline generally enhances sperm motility. We analyzed effects of theophylline and freezing on sperm motility.Design: Experimental study.Setting: Private IVF lab ...
Elaheh Gorji   +3 more
doaj   +1 more source

Influence of complement on sperm motility [PDF]

open access: yesInternational Journal of Andrology, 1990
SummaryIsolated sperm from normo‐, oligo‐ and astheno‐spermic men were incubated for 20 h in medium supplemented with 8% heat‐inactivated or untreated human serum, and in medium with heated or untreated serum deficient in complement factor C3. Before and after incubation, sperm motility was assessed by means of a computer‐assisted semen analyser.
F R, Vogelpoel   +3 more
openaire   +2 more sources

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