https://commons.ru.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 https://commons.ru.ac.za/vital/access/manager/Repository/vital:4330 Wed 12 May 2021 23:40:38 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4375 Wed 12 May 2021 23:20:49 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4312 Wed 12 May 2021 23:20:08 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:26996 Wed 12 May 2021 22:53:00 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4332 Wed 12 May 2021 20:25:51 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4285 Wed 12 May 2021 19:56:19 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4395 Wed 12 May 2021 19:42:10 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:34529 Wed 12 May 2021 19:30:43 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4361 Wed 12 May 2021 19:18:40 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:29928 Wed 12 May 2021 19:14:28 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:29116 Wed 12 May 2021 19:14:06 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4376 Wed 12 May 2021 19:11:10 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4548 Wed 12 May 2021 18:32:45 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:29118 Wed 12 May 2021 18:23:20 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4331 Wed 12 May 2021 17:29:37 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4293 Wed 12 May 2021 17:24:17 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4276 Wed 12 May 2021 16:06:38 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:41489 50% cell viability) at concentrations ≤100 μg/mL, however the conjugates showed < 45% cell viability at concentrations ≤ 100 μg/mL, probably due to the small micellar size and EPR effect. The findings from this work show the importance of incorporating photosensitizers such as phthalocyanines into Pluronic polymers micelles and making them water soluble and ultimately improving their photodynamic effect.]]> Wed 12 May 2021 14:58:28 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:41377 Wed 12 May 2021 14:34:09 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:41328 Wed 12 May 2021 14:19:36 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:41163 Wed 12 May 2021 13:49:36 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:42108 3.76 × 10 − 10 ( 4a ) > 3.52 × 10 − 10 ( 4c ) > 2.29 × 10 − 10 ( 3c ) > 1.68 × 10 − 10 ( 3a ) > 1.65 × 10 − 10 ( 3b ) mW - 1 . The 휷 values trend of synthesized Pc complexes show that the asymmetrical A 3 B type metal free, cobalt and zinc Pc complexes ( 4a , 4b and 4c ) have larger 휷 values as compared to the octa - substituted symmetrical metal free, cobalt and zinc Pc complexes ( 3a , 3b and 3c ) which is attributed to the low symmetry of the Pc complexes. The five - level model rate equations were used to determine the two photon absorption, excited state absorption and ground state absorption cross sections of the synthesized complexes. The z inc A 3 B type asymmetrical Pc complexes gave the largest two photon absorption and 휎 푒 / 휎 푔 ratio values. This Pc complex could be used in future work to enhance the nonlinear response further by introducing nanomaterials and converting the Pc complex to a binuclear Pc. This work also reports on the density functional theory (DFT) calculations o f dipolar/octupolar contributions in order to study the first order hyperpolarizability of the synthesized Pc complexes.]]> Wed 12 May 2021 13:45:11 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:29119 Thu 13 May 2021 16:04:33 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:31404 Thu 13 May 2021 12:43:26 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:35406 Thu 13 May 2021 06:50:34 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4370 Thu 13 May 2021 04:48:05 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4539 Thu 13 May 2021 04:42:43 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4343 NiPcS[subscript 4] > NiPcS[subscript mix] > FePcS[subscript 4] > FePcS[subscript mix] > CoPcS[subscript 4]. The adsorbents were regenerated using dilute HNO[subscript 3], with 76 % (7.6 x 10[superscript -5] mol) of 4-Np recovered within 150 min.]]> Thu 13 May 2021 04:14:52 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4374 Thu 13 May 2021 03:57:29 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4542 Thu 13 May 2021 03:30:48 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:29121 Thu 13 May 2021 01:46:43 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4291 Thu 13 May 2021 01:46:25 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4334 Thu 13 May 2021 01:17:13 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4364 Thu 13 May 2021 01:03:21 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4436 67 > 66. Comparing porphyrazine complexes (63, 64 and 65), 63 with benzene attached to the ring, has higher triplet state lifetime (420 μs) compared to 64 and 65 containing long alkyl chain and tertbutyl substituents, 350 and 360 μs,respectively). The observed Φ[subscript]f values for 68 and 63 were quiet suprising, since low values are observed compared to the rest of the complexes (e.g 0.03 and 0.02 respectively). Although these values seem so low, they are sufficient for fluorescence imaging applications. The Φ[subscript]f values for the complexes under study are within the range reported for complexes currently used for PDT.]]> Thu 13 May 2021 00:21:54 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:27038 Fri 17 Sep 2021 10:11:50 SAST ]]>