Proton ENDOR spectroscopy was used to monitor local conformational changes in bacterial reaction centers (RC) associated with the electron-transfer reaction DQB --> D+*QB-* using mutant RCs capable of photoreducing QB at cryogenic temperatures. The charge separated state D+*QB-* was studied in mutant RCs formed by either (i) illuminating at low temperature (77 K) a sample frozen in the dark (gr...

The present study describes an economic and scalable approach to aqueous mesophases from bola-amphiphiles (BA) obtained via nucleophilic addition of dimer fatty acid based α,ω-polyesterdiols (PES) on cyclic acid anhydrides and conversion of the carboxylic end groups into ammonium salts. Novel bola-amphiphilic head groups are introduced using alkenyl succinic anhydrides (ASA). The additional ter...

Penelitian ini berawal dari pengamatan peneliti di lapangan yang melihat kemampuan smash siswa ekstrakurikuler MTs Bahrul Ulum masih rendah. bertujuan untuk menguji pengaruh latihan memukul bola gantung terhadap ketepatan smash. menggunakan metode eksperimen dengan desain One-Group Pretest-Postest Design. Teknik pengambilan sampel jenuh, sehingga jumlah terdiri 12 orang berjenis kelamin laki-la...

Cross-reactivity between Mycobacterium kansasii ESAT-6 and CFP-10 homologues and their M. bovis counterparts can confound the interpretation of immunodiagnostic tests for tuberculosis. M. kansasii is a nontuberculous mycobacterial species cultured from skin test-positive cattle in Great Britain. Using peptides derived from M. bovis and M. kansasii ESAT-6 and CFP-10 regions that differ between t...

Concave nanospheres based on the self-assembly of simple dipeptides not only provide alternatives for modeling the interactions between biomacromolecules, but also present a range of applications for purification and separation, and delivery of active species. The kinetic control of the peptide assembly provides a unique opportunity to build functional and dynamic nanomaterials, such as concave...