Results 191 to 200 of about 34,232 (289)

Addressing false negatives and positives in eDNA studies

Methods in Ecology and Evolution, EarlyView.
Abstract Environmental DNA (eDNA) has revolutionized the study of ecology and biodiversity, enabling species detection without direct observation in the environment. However, the implications of detection errors, specifically false positives and false negatives, are poorly reported in eDNA studies, significantly hindering our understanding of the ...
Amal Bajaffer, Lutfi Afiq‐Rosli, Kah Kheng Lim, Sofia Frappi, Michelle‐Nicole Havlik, Diego E. Rivera Rosas, Elisa Laiolo, Carlos Angulo‐Preckler, Carlos M. Duarte   +8 more
wiley   +1 more source

Protocol for spectrophotometric determination of titanium microparticles in biological samples via Ti(IV)-H₂O₂ reactions. [PDF]

STAR Protoc
Xie L, Siddiqui DA, Kotsakis GA.
europepmc   +1 more source

Polypropylene Nanoplastic Exposure to Respiratory Epithelial Barrier‐On‐Chip and Interfacial Interactions With Human Serum Albumin

Allergy, EarlyView.
Exposure to 305 nm PP NPs significantly disrupts the airway barrier‐on‐chip, reducing TEER, suppressing ZO‐1/ACE2 expression, and triggering ROS‐mediated apoptosis. In biological media, PP NPs exhibit a biphasic adsorption pattern, leading to the formation of a protein corona that increases their size to 364 nm.
Omur Sert, Eyup Bilgi, Reyhan Coban, Pelin Saglam‐Metiner, Basar Dogan, Zeynep Imir‐Tekneci, Suleyman Selim Cinaroglu, Ozlem Goksel, Ceyda Oksel Karakus, Ozlem Yesil‐Celiktas   +9 more
wiley   +1 more source

Evaluation of physical, chemical, and color‐matching properties of monochromatic resin composites: An in vitro study

European Journal of Oral Sciences, EarlyView.
Abstract The objectives of this study are to evaluate, in vitro, the microhardness, sorption, solubility, color stability, and color‐matching ability of monochromatic resin composites: Palfique Omnichroma / Tokuyama (Mono1) and Vittra APS Unique / FGM (Mono2) compared with the conventional resin composite: Filtek Z250 XT / Solventum (Conv).
Ericka dos Santos Lopes, Mayara Evelly Duarte de Lima, Emanuel Ewerton Mendonça Vasconcelos, Natália Gomes de Oliveira, Gabriela Queiroz de Melo Monteiro, Luís Felipe Espíndola‐Castro   +5 more
wiley   +1 more source

Resolving spectral overlaps in Anti-Parkinson drug combinations: a green spectrophotometric approach for entacapone determination. [PDF]

BMC Chem
El Fiky HA, Gamal S, Abdelgawad MA, Gamal M, Hussein OG.   +4 more
europepmc   +1 more source

Discovery of a cryptic aminoacidic triad involved in the temperature adaptation of GH1 enzymes

The FEBS Journal, EarlyView.
Cold‐active enzymes retain high catalytic activity at low temperatures but are characterized by thermal instability, a behavior not fully understood. Comparison between a cold‐active GH1 and its mesophilic counterparts highlights the role of a three‐residue motif (W‐M‐F) in conferring structural stability to a mesophilic GH1.
Stefania Digiovanni, Gabriel Oanca, Marco Orlando, Marina Lotti, Johan Åqvist, Marco Mangiagalli   +5 more
wiley   +1 more source

A New Kinetic-Mechanistic Approach Towards Spectrophotometric Bioanalysis of 2-Phenylethylamine as a Sympathomimetic Agent Using Sodium Isopropyl Xanthate. [PDF]

Anal Sci Adv
Nami F, Kholafazad H, Hasanzadeh M, Shadjou N.   +3 more
europepmc   +1 more source

A distinct gene expression mechanism for d‐amino acid utilization in hyperthermophilic archaeon Pyrococcus horikoshii

The FEBS Journal, EarlyView.
The genes PH0137, PH0138, and PH0140 form a cluster in the genome of Pyrococcus horikoshii. The PH0140 gene encodes a transcription factor identified as a d‐amino acid‐responsive regulatory protein (DARP). In feast mode, l‐Ile‐bound DARP binds to the promoter and represses transcription of PH0137 and PH0138. In famine mode, DARP binds to d‐allo‐Ile and
Ryushi Kawakami, Tomoki Kawase, Taira Uehara, Haruhiko Sakuraba, Tomohiko Matsuzawa, Junji Hayashi, Toshihisa Ohshima   +6 more
wiley   +1 more source

Development of a green and sustainable rice husk nanosilica-based spectrophotometric probe for dual detection of Ag(i) and Fe(iii) in environmental and E-waste matrices. [PDF]

RSC Adv
Alluhaybi AA, Attia A, Said MA, Alraddadi TS, Sarkar B, Elshaarawy RFM, Shahat A, Shenashen M.   +7 more
europepmc   +1 more source

[Quantitative determination of ditilin by a UV spectrophotometric method].

Farmatsevtychnyi zhurnal, 1975
V P, Georgievskiĭ, N N, Skakun
openaire   +1 more source