Results 131 to 140 of about 17,886 (241)

Development of Raman Spectroscopy and Machine Learning Methods for Protein Aggregate Quantification: Application to BSA in Chromatographic Processes

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Protein aggregation poses a significant risk to biopharmaceutical product quality, as even minor amounts of oligomeric species can compromise efficacy and safety. Rapid and reliable detection of protein aggregates thus remains a major challenge in biopharmaceutical manufacturing.
Jakob Heyer‐Müller, Robin Schiemer, Lars Robbel, Michael Schmitt, Jürgen Hubbuch   +4 more
wiley   +1 more source

Evaluation of an in-capillary approach for performing quantitative cytochrome P450 activity studies [PDF]

, 2018
An automated in-capillary assay requiring very small quantities of reagents was developed for performing in vitro cytochrome P450 (CYP450) drug metabolism studies. The approach is based on the following: (i) hydrodynamic introduction of nanoliter volumes
Curcio, R., Nicoli, R., Rudaz, S., Veuthey, J.-L   +3 more
core  

A case study showing the role of hydrophobicity variants and other enriched mAb proteoforms on filterability through a virus filter with productivity improvement measures

Biotechnology Progress, EarlyView.
Abstract A rapid assessment of manufacturability for drug candidates is crucial for advancing a prospective biotherapeutic from a candidate to a bulk drug substance. A lot‐to‐lot approach to manufacturability is adopted where each biologic batch is assessed for manufacturability as a bulk, unfractionated pool.
Solomon Isu, Derek Silva, Melissa Holstein, Angela Lewandowski, Kristina Cunningham, Adam Sokolnicki, Bala Raghunath   +6 more
wiley   +1 more source

Determination of α-hydroxy acids in cosmetics by UHPLC-MS/MS

Shanghai yufang yixue
ObjectiveTo establish a UHPLC-MS/MS quantitative method for the determination of glucuronic acid， tartaric acid， glycolic acid， malic acid， lactic acid， citric acid， DL-2-hydroxybutyric acid sodium， mandelic acid， benzilic acid， hydroxycaprylic acid ...
RU Ge, XU Yong, HAN Jing, ZHANG Kai, PENG Xingsheng, ZHENG Rong   +5 more
doaj   +1 more source

Synthesis of an Enzyme‐Triggered Chitosan‐Based Drug Delivery System for Peri‐Implantitis Prevention

Chemistry – A European Journal, EarlyView.
ABSTRACT Dental implants have become a leading solution for tooth loss, yet bacterial infections remain a major complication. Antibacterial implant coatings are an important approach to reduce or prevent bacterial infections at the implant. Given the oral cavity's complex microbiome and the importance of some commensal bacteria, it is crucial to ...
Nelly Senze Nnane, Amit Gaikwad, Muhammad Imran Rahim, Andreas Winkel, Oliver Hergert, Till Beuerle, Meike Stiesch, Henning Menzel   +7 more
wiley   +1 more source

Pharmacokinetics and Metabolism Research of Shenkang Injection in Rats Based on UHPLC-MS/MS and UHPLC-Q-Orbitrap HRMS

Drug Design, Development and Therapy, 2020
Xiaofang Jiang,1,* Lin Zhou,2,3,* Lihua Zuo,2,3 Xiaohui Wang,4 Yingying Shi,2,3 Xiangyu Du,5 Jun Zhang,2,3 Liwei Liu,2,3 Zhuolun Li,2,3 Lianping Xue,2,3 Xin Liu,1 Zhi Sun2,3 1Department of Traditional Chinese Medicine, The First Affiliated Hospital of ...
Jiang X, Zhou L, Zuo L, Wang X, Shi Y, Du X, Zhang J, Liu L, Li Z, Xue L, Liu X, Sun Z   +11 more
doaj  

Evaluation of Therapeutic Opioids in Skin‐Derived Matrices (Sweat and Sebum) of Neonatal and Pediatric Patients and Their Role in Opioid Incorporation Into Hair

Drug Testing and Analysis, EarlyView.
Concentration ranges, dose–concentration relationships, and metabolite‐to‐parent drug ratios of therapeutic opioids were evaluated in hair and skin swab samples of 150 pediatric patients. Skin‐derived matrices such as sweat or sebum were shown to contribute to analyte incorporation into hair in a systematic manner.
Max Polke, Florian Zapf, Julia T. Scherer, Clarissa D. Voegel, Tanja Restin, Marc W. Schmid, Thomas Kraemer, Tina M. Binz   +7 more
wiley   +1 more source

Development and Validation of a UHPLC-MS/MS Method for Ciprofol Detection in Plasma: Application in Clinical Pharmacokinetic Studies

Drug Design, Development and Therapy
Jiaxi Zhu,1,2,* Ying Cao,2,* Xingan Zhang,2 Bo Xu2 1The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, People’s Republic of China; 2Department of Anesthesiology, General Hospital of Southern ...
Zhu J, Cao Y, Zhang X, Xu B
doaj  

Evaluation of Different Detection and Identification Methods of Intact Tetrahydro‐Methyltestosterone Sulfate Metabolites in Doping Control

Drug Testing and Analysis, EarlyView.
The micro‐scale synthesis of the six out of eight possible tetrahydro‐methyltestosterone sulfate metabolites was performed, and the synthesized materials were used as analytical standards. The analysis of post‐administration sample extracts from methyltestosterone excretion studies against these standards provides further experimental proof for their ...
Yiannis S. Angelis, Olga Goula, Polyxeni Kiousi, Panagiotis Sakellariou   +3 more
wiley   +1 more source

Yleisimpien kipulääkkeiden analysointi jätevesistä UHPLC-MS/MS-menetelmällä

, 2022
Tiivistelmä. Kipulääkkeitä käytetään runsaasti ympäri maailmaa niiden suotuisten vaikutusten ja helpon saatavuuden vuoksi. Niitä päätyy jätevedenpuhdistuslaitoksille mm. kotitalouksien, sairaaloiden ja teollisuuden jätevesien mukana. Kipulääkkeet poistuvat jätevedestä puutteellisesti, johtuen niiden kemiallisista ominaisuuksista ja puhdistusprosessien ...
openaire   +1 more source