Results 121 to 130 of about 255,790 (360)

Advances in Electrochemical Nanobiosensors for Noninvasive Stress Biomarker Detection

open access: yesSensors
Cortisol is a key stress-related hormone whose accurate monitoring is essential for assessing physiological responses. Traditional detection methods are invasive and impractical for continuous use.
Leonardo Messina   +2 more
doaj   +1 more source

Detection of Yersinia pestis fraction 1 antigen with a fiber optic biosensor [PDF]

open access: bronze, 1995
Lynn K. Cao   +3 more
openalex   +1 more source

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

open access: yesAdvanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi   +4 more
wiley   +1 more source

Molecularly imprinted polymers-based electrochemical sensors for tracking vitamin B12 released from spray-dried microcapsules during in vitro simulated gastrointestinal digestion

open access: yesSensing and Bio-Sensing Research
Highly sensitive detection of vitamin B12 (VB12) is crucial for assessing its bioavailability and diagnosing deficiency-related disorders. VB12 with 87.69 % efficiency was microencapsulated by spray drying complex coacervation-based emulsions of Arabic ...
Seyed Mohammad Taghi Gharibzahedi   +3 more
doaj   +1 more source

Different Amyloid-β Self-Assemblies Have Distinct Effects on Intracellular Tau Aggregation. [PDF]

open access: yes, 2019
Alzheimer's disease (AD) pathology is characterized by the aggregation of beta-amyloid (Aβ) and tau in the form of amyloid plaques and neurofibrillary tangles in the brain.
Bitan, Gal   +6 more
core  

A Functional 2D Carbon Allotrope Combining Nanoporous Graphene and Biphenylene Segments

open access: yesAdvanced Materials, EarlyView.
The synthesis of a novel nanoporous graphene (NPG) is reported with biphenylene segments via thermal fusion of 12‐armchair porous graphene nanoribbons grown on gold surfaces. Characterization using STM, AFM, and DFT reveals low‐defect semiconducting behaviour and tunable band gaps.
Paula Angulo‐Portugal   +14 more
wiley   +1 more source

Synergistic convergence of materials and enzymes for biosensing and self-sustaining energy devices towards on-body health monitoring

open access: yesCommunications Materials
Wearable enzyme-based biosensors enable advanced healthcare diagnostics through the monitoring of biomarkers and physiological states. The integration of materials engineering and enzyme conjugation has established the groundwork for advancements in ...
Suntisak Khumngern, Itthipon Jeerapan
doaj   +1 more source

Bionic Sensing and BCI Technologies for Olfactory Improvement and Reconstruction

open access: yesChemosensors
Olfactory dysfunction (OD) is an early symptom associated with a variety of diseases, including COVID-19, Alzheimer’s disease, and Parkinson’s disease, where patients commonly experience hyposmia or anosmia. Effective restoration of olfactory function is
Yajie Zhang   +8 more
doaj   +1 more source

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

open access: yesAdvanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau   +9 more
wiley   +1 more source

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