Results 161 to 170 of about 552,185 (343)

Green Synthesis of Silver Nanoparticles: A Review of Polymer and Antimicrobial Drug Combinations for Enhanced Antimicrobial Applications

open access: yesAdvanced NanoBiomed Research, EarlyView.
Silver nanoparticles (AgNPs) synthesized using eco‐friendly green synthesis approaches exhibit remarkable antimicrobial activity and enhanced drug delivery potential. Polymer‐AgNPs conjugates further improve drug stability and targeted delivery, offering a multifunctional platform for biomedical applications.
Mukil Madhusudanan   +6 more
wiley   +1 more source

The annulus: composition, role and importance in sperm flagellum biogenesis and male fertility

open access: yesBasic and Clinical Andrology
The annulus is an electron-dense ring structure that surrounds the axoneme and compartmentalizes the sperm flagellum into two parts: the midpiece and the principal piece.
Marjorie Whitfield
doaj   +1 more source

Laser‐Patterned Diamond Electrodes for Adhesion and Proliferation of Human Mesenchymal Stem Cells

open access: yesAdvanced NanoBiomed Research, EarlyView.
Laser patterning is used to create diamond electrodes on insulating diamond substrates. The process yields conductive surfaces with high capacitance, wide water windows, and low impedance. The electrode‐enhancing human mesenchymal stem cell adhesion and growth are nontoxic and promote cell alignment.
Hassan N. Al Hashem   +9 more
wiley   +1 more source

Predicting ecology and hearing sensitivities in Parapontoporia—An extinct long‐snouted dolphin

open access: yesThe Anatomical Record, EarlyView.
Abstract Analyses of the cetacean (whale and dolphin) inner ear provide glimpses into the ecology and evolution of extinct and extant groups. The paleoecology of the long‐snouted odontocete (toothed whale) group, Parapontoporia, is primarily marine with its depositional context also suggesting freshwater tolerance.
Joyce Sanks, Rachel Racicot
wiley   +1 more source

Non-invasive assessment of stem cell DNA integrity in response to environmental stressors

open access: yesScientific Reports
The maintenance of DNA integrity in spermatogonial stem cells (SSCs) is essential for ensuring genetic stability and proper function in male germline cells.
Juan Wang   +4 more
doaj   +1 more source

Three cases of sperm immobility for intracytoplasmic sperm injection using testicular sperm

open access: yesIJU Case Reports
IntroductionSperm immobility is a condition in which sperm are viable but not motile. We reported three patients with sperm immobility, who underwent testicular sperm extraction‐intracytoplasmic sperm injection.Case presentationIn case 1, a 32‐year‐old patient with sperm immobility had previously undergone intracytoplasmic sperm injection with ...
Noboru Mimura   +5 more
openaire   +3 more sources

Intraspecific variation of cochlear morphology in bowhead and beluga whales

open access: yesThe Anatomical Record, EarlyView.
Abstract The bony labyrinth of the petrosal bone, a distinctive feature of mammal skulls, is often identified in micro‐computed tomography imaging to infer species' physiological and ecological traits. When done as part of a comparative study, one individual specimen is normally considered representative of a species, and intraspecific variation is ...
John Peacock, J. G. M. Thewissen
wiley   +1 more source

Combined Analysis of the Transcriptome, Proteome and Metabolome in Human Cryopreserved Sperm

open access: yesThe World Journal of Men's Health
Purpose: This study aimed to identify the altered pathways and genes associated with freezing damage in human sperm during cryopreservation by multiomics analysis.
Longlong Fu   +8 more
doaj   +1 more source

Fertility preservation in male adolescents with cancer (2011–2020): A retrospective study in China

open access: yesCancer Medicine
Background According to the studies, more than 80% of pediatric patients with cancer can achieve a survival rate greater than 5 years; however, long‐term chemotherapy and/or radiation therapy may seriously affect their reproductive ability.
Shasha Liu   +26 more
doaj   +1 more source

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